* Re: selftests: question about git repos containing selftest.
From: Shuah Khan @ 2014-12-09 20:21 UTC (permalink / raw)
To: Greg KH
Cc: Young, David, linux-api@vger.kernel.org, shuahkh@osg.samsung.com,
linux-kernel@vger.kernel.org
In-Reply-To: <20141209194602.GB20166@kroah.com>
On Tue, Dec 9, 2014 at 12:46 PM, Greg KH <gregkh@linuxfoundation.org> wrote:
> On Tue, Dec 09, 2014 at 02:22:42PM -0500, Young, David wrote:
>> Greetings,
>>
>> I'm trying out the new kernel selftests and was looking for the "bleeding edge" repository to clone. According to the wiki https://kselftest.wiki.kernel.org/ this is the appropriate repo:
>> git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest.git
>>
>> However, I am finding newer and more frequent changes are in linux-next.
>> https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git
>>
>> Which should I clone for the most fresh changes?
>
> Are you sure you are looking at the correct branch for that git repo?
> Which one were you using?
>
Please find the patches slated for 3.19--rc1 in fixes branch. These
are the ones that
get pulled into linux-next for integration testing.
-- Shuah
^ permalink raw reply
* Re: selftests: question about git repos containing selftest.
From: Greg KH @ 2014-12-09 19:46 UTC (permalink / raw)
To: Young, David
Cc: linux-api@vger.kernel.org, shuahkh@osg.samsung.com,
linux-kernel@vger.kernel.org
In-Reply-To: <7F8EB1E5A1A71643ACAD0928E03FFDE90E3D796BF2@USMBX1.msg.corp.akamai.com>
On Tue, Dec 09, 2014 at 02:22:42PM -0500, Young, David wrote:
> Greetings,
>
> I'm trying out the new kernel selftests and was looking for the "bleeding edge" repository to clone. According to the wiki https://kselftest.wiki.kernel.org/ this is the appropriate repo:
> git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest.git
>
> However, I am finding newer and more frequent changes are in linux-next.
> https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git
>
> Which should I clone for the most fresh changes?
Are you sure you are looking at the correct branch for that git repo?
Which one were you using?
thanks,
greg k-h
^ permalink raw reply
* [PATCH v6] media: platform: add VPFE capture driver support for AM437X
From: Lad, Prabhakar @ 2014-12-09 19:43 UTC (permalink / raw)
To: LMML, devicetree-u79uwXL29TY76Z2rM5mHXA, linux-api, Hans Verkuil
Cc: LKML, Hans Verkuil, Lad, Prabhakar
From: Benoit Parrot <bparrot-l0cyMroinI0@public.gmane.org>
This patch adds Video Processing Front End (VPFE) driver for
AM437X family of devices
Driver supports the following:
- V4L2 API using MMAP buffer access based on videobuf2 api
- Asynchronous sensor/decoder sub device registration
- DT support
Signed-off-by: Benoit Parrot <bparrot-l0cyMroinI0@public.gmane.org>
Signed-off-by: Darren Etheridge <detheridge-l0cyMroinI0@public.gmane.org>
Signed-off-by: Lad, Prabhakar <prabhakar.csengg-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
---
Changes for v6:
1: Fixed review comments pointed Hans, fixing race condition.
v5: https://patchwork.kernel.org/patch/5459311/
v4: https://patchwork.kernel.org/patch/5449211/
v3: https://patchwork.kernel.org/patch/5434291/
v2: https://patchwork.kernel.org/patch/5425631/
v1: https://patchwork.kernel.org/patch/5362661/
.../devicetree/bindings/media/ti-am437x-vpfe.txt | 61 +
MAINTAINERS | 9 +
drivers/media/platform/Kconfig | 1 +
drivers/media/platform/Makefile | 2 +
drivers/media/platform/am437x/Kconfig | 11 +
drivers/media/platform/am437x/Makefile | 3 +
drivers/media/platform/am437x/am437x-vpfe.c | 2777 ++++++++++++++++++++
drivers/media/platform/am437x/am437x-vpfe.h | 283 ++
drivers/media/platform/am437x/am437x-vpfe_regs.h | 140 +
include/uapi/linux/Kbuild | 1 +
include/uapi/linux/am437x-vpfe.h | 122 +
11 files changed, 3410 insertions(+)
create mode 100644 Documentation/devicetree/bindings/media/ti-am437x-vpfe.txt
create mode 100644 drivers/media/platform/am437x/Kconfig
create mode 100644 drivers/media/platform/am437x/Makefile
create mode 100644 drivers/media/platform/am437x/am437x-vpfe.c
create mode 100644 drivers/media/platform/am437x/am437x-vpfe.h
create mode 100644 drivers/media/platform/am437x/am437x-vpfe_regs.h
create mode 100644 include/uapi/linux/am437x-vpfe.h
diff --git a/Documentation/devicetree/bindings/media/ti-am437x-vpfe.txt b/Documentation/devicetree/bindings/media/ti-am437x-vpfe.txt
new file mode 100644
index 0000000..3932e76
--- /dev/null
+++ b/Documentation/devicetree/bindings/media/ti-am437x-vpfe.txt
@@ -0,0 +1,61 @@
+Texas Instruments AM437x CAMERA (VPFE)
+--------------------------------------
+
+The Video Processing Front End (VPFE) is a key component for image capture
+applications. The capture module provides the system interface and the
+processing capability to connect RAW image-sensor modules and video decoders
+to the AM437x device.
+
+Required properties:
+- compatible: must be "ti,am437x-vpfe"
+- reg: physical base address and length of the registers set for the device;
+- interrupts: should contain IRQ line for the VPFE;
+- ti,am437x-vpfe-interface: can be one of the following,
+ 0 - Raw Bayer Interface.
+ 1 - 8 Bit BT656 Interface.
+ 2 - 10 Bit BT656 Interface.
+ 3 - YCbCr 8 Bit Interface.
+ 4 - YCbCr 16 Bit Interface.
+
+VPFE supports a single port node with parallel bus. It should contain one
+'port' child node with child 'endpoint' node. Please refer to the bindings
+defined in Documentation/devicetree/bindings/media/video-interfaces.txt.
+
+Example:
+ vpfe: vpfe@f0034000 {
+ compatible = "ti,am437x-vpfe";
+ reg = <0x48328000 0x2000>;
+ interrupts = <GIC_SPI 50 IRQ_TYPE_LEVEL_HIGH>;
+
+ pinctrl-names = "default", "sleep";
+ pinctrl-0 = <&vpfe_pins_default>;
+ pinctrl-1 = <&vpfe_pins_sleep>;
+
+ port {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ vpfe0_ep: endpoint {
+ remote-endpoint = <&ov2659_1>;
+ ti,am437x-vpfe-interface = <0>;
+ bus-width = <8>;
+ hsync-active = <0>;
+ vsync-active = <0>;
+ };
+ };
+ };
+
+ i2c1: i2c@4802a000 {
+
+ ov2659@30 {
+ compatible = "ti,ov2659";
+ reg = <0x30>;
+
+ port {
+ ov2659_1: endpoint {
+ remote-endpoint = <&vpfe0_ep>;
+ bus-width = <8>;
+ mclk-frequency = <12000000>;
+ };
+ };
+ };
diff --git a/MAINTAINERS b/MAINTAINERS
index 9c49eb6..5b1cb1a 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -8543,6 +8543,15 @@ S: Maintained
F: drivers/media/platform/davinci/
F: include/media/davinci/
+TI AM437X VPFE DRIVER
+M: Lad, Prabhakar <prabhakar.csengg-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
+L: linux-media-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
+W: http://linuxtv.org/
+Q: http://patchwork.linuxtv.org/project/linux-media/list/
+T: git git://linuxtv.org/mhadli/v4l-dvb-davinci_devices.git
+S: Maintained
+F: drivers/media/platform/am437x/
+
SIS 190 ETHERNET DRIVER
M: Francois Romieu <romieu-W8zweXLXuWQS+FvcfC7Uqw@public.gmane.org>
L: netdev-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
diff --git a/drivers/media/platform/Kconfig b/drivers/media/platform/Kconfig
index 0c61155..6d94045 100644
--- a/drivers/media/platform/Kconfig
+++ b/drivers/media/platform/Kconfig
@@ -126,6 +126,7 @@ config VIDEO_S3C_CAMIF
source "drivers/media/platform/soc_camera/Kconfig"
source "drivers/media/platform/exynos4-is/Kconfig"
source "drivers/media/platform/s5p-tv/Kconfig"
+source "drivers/media/platform/am437x/Kconfig"
endif # V4L_PLATFORM_DRIVERS
diff --git a/drivers/media/platform/Makefile b/drivers/media/platform/Makefile
index b818afb..7bb6d46 100644
--- a/drivers/media/platform/Makefile
+++ b/drivers/media/platform/Makefile
@@ -49,4 +49,6 @@ obj-$(CONFIG_VIDEO_RENESAS_VSP1) += vsp1/
obj-y += omap/
+obj-$(CONFIG_VIDEO_AM437X_VPFE) += am437x/
+
ccflags-y += -I$(srctree)/drivers/media/i2c
diff --git a/drivers/media/platform/am437x/Kconfig b/drivers/media/platform/am437x/Kconfig
new file mode 100644
index 0000000..7b023a76
--- /dev/null
+++ b/drivers/media/platform/am437x/Kconfig
@@ -0,0 +1,11 @@
+config VIDEO_AM437X_VPFE
+ tristate "TI AM437x VPFE video capture driver"
+ depends on VIDEO_V4L2 && VIDEO_V4L2_SUBDEV_API
+ depends on SOC_AM43XX || COMPILE_TEST
+ select VIDEOBUF2_DMA_CONTIG
+ help
+ Support for AM437x Video Processing Front End based Video
+ Capture Driver.
+
+ To compile this driver as a module, choose M here. The module
+ will be called am437x-vpfe.
diff --git a/drivers/media/platform/am437x/Makefile b/drivers/media/platform/am437x/Makefile
new file mode 100644
index 0000000..d11fff1
--- /dev/null
+++ b/drivers/media/platform/am437x/Makefile
@@ -0,0 +1,3 @@
+# Makefile for AM437x VPFE driver
+
+obj-$(CONFIG_VIDEO_AM437X_VPFE) += am437x-vpfe.o
diff --git a/drivers/media/platform/am437x/am437x-vpfe.c b/drivers/media/platform/am437x/am437x-vpfe.c
new file mode 100644
index 0000000..eb6b35e
--- /dev/null
+++ b/drivers/media/platform/am437x/am437x-vpfe.c
@@ -0,0 +1,2777 @@
+/*
+ * TI VPFE capture Driver
+ *
+ * Copyright (C) 2013 - 2014 Texas Instruments, Inc.
+ *
+ * Benoit Parrot <bparrot-l0cyMroinI0@public.gmane.org>
+ * Lad, Prabhakar <prabhakar.csengg-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
+ *
+ * This program is free software; you may redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#include <linux/delay.h>
+#include <linux/err.h>
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/io.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/pm_runtime.h>
+#include <linux/slab.h>
+#include <linux/uaccess.h>
+#include <linux/videodev2.h>
+
+#include <media/v4l2-common.h>
+#include <media/v4l2-ctrls.h>
+#include <media/v4l2-event.h>
+#include <media/v4l2-of.h>
+
+#include "am437x-vpfe.h"
+
+#define VPFE_MODULE_NAME "vpfe"
+#define VPFE_VERSION "0.1.0"
+
+static int debug;
+module_param(debug, int, 0644);
+MODULE_PARM_DESC(debug, "Debug level 0-8");
+
+#define vpfe_dbg(level, dev, fmt, arg...) \
+ v4l2_dbg(level, debug, &dev->v4l2_dev, fmt, ##arg)
+#define vpfe_info(dev, fmt, arg...) \
+ v4l2_info(&dev->v4l2_dev, fmt, ##arg)
+#define vpfe_err(dev, fmt, arg...) \
+ v4l2_err(&dev->v4l2_dev, fmt, ##arg)
+
+/* standard information */
+struct vpfe_standard {
+ v4l2_std_id std_id;
+ unsigned int width;
+ unsigned int height;
+ struct v4l2_fract pixelaspect;
+ int frame_format;
+};
+
+const struct vpfe_standard vpfe_standards[] = {
+ {V4L2_STD_525_60, 720, 480, {11, 10}, 1},
+ {V4L2_STD_625_50, 720, 576, {54, 59}, 1},
+};
+
+struct bus_format {
+ unsigned int width;
+ unsigned int bpp;
+};
+
+/*
+ * struct vpfe_fmt - VPFE media bus format information
+ * @name: V4L2 format description
+ * @code: V4L2 media bus format code
+ * @shifted: V4L2 media bus format code for the same pixel layout but
+ * shifted to be 8 bits per pixel. =0 if format is not shiftable.
+ * @pixelformat: V4L2 pixel format FCC identifier
+ * @width: Bits per pixel (when transferred over a bus)
+ * @bpp: Bytes per pixel (when stored in memory)
+ * @supported: Indicates format supported by subdev
+ */
+struct vpfe_fmt {
+ const char *name;
+ u32 fourcc;
+ u32 code;
+ struct bus_format l;
+ struct bus_format s;
+ bool supported;
+ u32 index;
+};
+
+static struct vpfe_fmt formats[] = {
+ {
+ .name = "YUV 4:2:2 packed, YCbYCr",
+ .fourcc = V4L2_PIX_FMT_YUYV,
+ .code = MEDIA_BUS_FMT_YUYV8_2X8,
+ .l.width = 10,
+ .l.bpp = 4,
+ .s.width = 8,
+ .s.bpp = 2,
+ .supported = false,
+ }, {
+ .name = "YUV 4:2:2 packed, CbYCrY",
+ .fourcc = V4L2_PIX_FMT_UYVY,
+ .code = MEDIA_BUS_FMT_UYVY8_2X8,
+ .l.width = 10,
+ .l.bpp = 4,
+ .s.width = 8,
+ .s.bpp = 2,
+ .supported = false,
+ }, {
+ .name = "YUV 4:2:2 packed, YCrYCb",
+ .fourcc = V4L2_PIX_FMT_YVYU,
+ .code = MEDIA_BUS_FMT_YVYU8_2X8,
+ .l.width = 10,
+ .l.bpp = 4,
+ .s.width = 8,
+ .s.bpp = 2,
+ .supported = false,
+ }, {
+ .name = "YUV 4:2:2 packed, CrYCbY",
+ .fourcc = V4L2_PIX_FMT_VYUY,
+ .code = MEDIA_BUS_FMT_VYUY8_2X8,
+ .l.width = 10,
+ .l.bpp = 4,
+ .s.width = 8,
+ .s.bpp = 2,
+ .supported = false,
+ }, {
+ .name = "RAW8 BGGR",
+ .fourcc = V4L2_PIX_FMT_SBGGR8,
+ .code = MEDIA_BUS_FMT_SBGGR8_1X8,
+ .l.width = 10,
+ .l.bpp = 2,
+ .s.width = 8,
+ .s.bpp = 1,
+ .supported = false,
+ }, {
+ .name = "RAW8 GBRG",
+ .fourcc = V4L2_PIX_FMT_SGBRG8,
+ .code = MEDIA_BUS_FMT_SGBRG8_1X8,
+ .l.width = 10,
+ .l.bpp = 2,
+ .s.width = 8,
+ .s.bpp = 1,
+ .supported = false,
+ }, {
+ .name = "RAW8 GRBG",
+ .fourcc = V4L2_PIX_FMT_SGRBG8,
+ .code = MEDIA_BUS_FMT_SGRBG8_1X8,
+ .l.width = 10,
+ .l.bpp = 2,
+ .s.width = 8,
+ .s.bpp = 1,
+ .supported = false,
+ }, {
+ .name = "RAW8 RGGB",
+ .fourcc = V4L2_PIX_FMT_SRGGB8,
+ .code = MEDIA_BUS_FMT_SRGGB8_1X8,
+ .l.width = 10,
+ .l.bpp = 2,
+ .s.width = 8,
+ .s.bpp = 1,
+ .supported = false,
+ }, {
+ .name = "RGB565 (LE)",
+ .fourcc = V4L2_PIX_FMT_RGB565,
+ .code = MEDIA_BUS_FMT_RGB565_2X8_LE,
+ .l.width = 10,
+ .l.bpp = 4,
+ .s.width = 8,
+ .s.bpp = 2,
+ .supported = false,
+ }, {
+ .name = "RGB565 (BE)",
+ .fourcc = V4L2_PIX_FMT_RGB565X,
+ .code = MEDIA_BUS_FMT_RGB565_2X8_BE,
+ .l.width = 10,
+ .l.bpp = 4,
+ .s.width = 8,
+ .s.bpp = 2,
+ .supported = false,
+ },
+};
+
+static int
+__vpfe_get_format(struct vpfe_device *vpfe,
+ struct v4l2_format *format, unsigned int *bpp);
+
+static struct vpfe_fmt *find_format_by_code(unsigned int code)
+{
+ struct vpfe_fmt *fmt;
+ unsigned int k;
+
+ for (k = 0; k < ARRAY_SIZE(formats); k++) {
+ fmt = &formats[k];
+ if (fmt->code == code)
+ return fmt;
+ }
+
+ return NULL;
+}
+
+static struct vpfe_fmt *find_format_by_pix(unsigned int pixelformat)
+{
+ struct vpfe_fmt *fmt;
+ unsigned int k;
+
+ for (k = 0; k < ARRAY_SIZE(formats); k++) {
+ fmt = &formats[k];
+ if (fmt->fourcc == pixelformat)
+ return fmt;
+ }
+
+ return NULL;
+}
+
+static void
+mbus_to_pix(struct vpfe_device *vpfe,
+ const struct v4l2_mbus_framefmt *mbus,
+ struct v4l2_pix_format *pix, unsigned int *bpp)
+{
+ struct vpfe_subdev_info *sdinfo = vpfe->current_subdev;
+ unsigned int bus_width = sdinfo->vpfe_param.bus_width;
+ struct vpfe_fmt *fmt;
+
+ fmt = find_format_by_code(mbus->code);
+ if (WARN_ON(fmt == NULL)) {
+ pr_err("Invalid mbus code set\n");
+ *bpp = 1;
+ return;
+ }
+
+ memset(pix, 0, sizeof(*pix));
+ v4l2_fill_pix_format(pix, mbus);
+ pix->pixelformat = fmt->fourcc;
+ *bpp = (bus_width == 10) ? fmt->l.bpp : fmt->s.bpp;
+
+ /* pitch should be 32 bytes aligned */
+ pix->bytesperline = ALIGN(pix->width * *bpp, 32);
+ pix->sizeimage = pix->bytesperline * pix->height;
+}
+
+static void pix_to_mbus(struct vpfe_device *vpfe,
+ struct v4l2_pix_format *pix_fmt,
+ struct v4l2_mbus_framefmt *mbus_fmt)
+{
+ struct vpfe_fmt *fmt;
+
+ fmt = find_format_by_pix(pix_fmt->pixelformat);
+ if (!fmt) {
+ /* default to first entry */
+ vpfe_dbg(3, vpfe, "Invalid pixel code: %x, default used instead\n",
+ pix_fmt->pixelformat);
+ fmt = &formats[0];
+ }
+
+ memset(mbus_fmt, 0, sizeof(*mbus_fmt));
+ v4l2_fill_mbus_format(mbus_fmt, pix_fmt, fmt->code);
+}
+
+/* Print Four-character-code (FOURCC) */
+static char *print_fourcc(u32 fmt)
+{
+ static char code[5];
+
+ code[0] = (unsigned char)(fmt & 0xff);
+ code[1] = (unsigned char)((fmt >> 8) & 0xff);
+ code[2] = (unsigned char)((fmt >> 16) & 0xff);
+ code[3] = (unsigned char)((fmt >> 24) & 0xff);
+ code[4] = '\0';
+
+ return code;
+}
+
+static int
+cmp_v4l2_format(const struct v4l2_format *lhs, const struct v4l2_format *rhs)
+{
+ return lhs->type == rhs->type &&
+ lhs->fmt.pix.width == rhs->fmt.pix.width &&
+ lhs->fmt.pix.height == rhs->fmt.pix.height &&
+ lhs->fmt.pix.pixelformat == rhs->fmt.pix.pixelformat &&
+ lhs->fmt.pix.field == rhs->fmt.pix.field &&
+ lhs->fmt.pix.colorspace == rhs->fmt.pix.colorspace &&
+ lhs->fmt.pix.ycbcr_enc == rhs->fmt.pix.ycbcr_enc &&
+ lhs->fmt.pix.quantization == rhs->fmt.pix.quantization;
+}
+
+static inline u32 vpfe_reg_read(struct vpfe_ccdc *ccdc, u32 offset)
+{
+ return ioread32(ccdc->ccdc_cfg.base_addr + offset);
+}
+
+static inline void vpfe_reg_write(struct vpfe_ccdc *ccdc, u32 val, u32 offset)
+{
+ iowrite32(val, ccdc->ccdc_cfg.base_addr + offset);
+}
+
+static inline struct vpfe_device *to_vpfe(struct vpfe_ccdc *ccdc)
+{
+ return container_of(ccdc, struct vpfe_device, ccdc);
+}
+
+static inline struct vpfe_cap_buffer *to_vpfe_buffer(struct vb2_buffer *vb)
+{
+ return container_of(vb, struct vpfe_cap_buffer, vb);
+}
+
+static inline void vpfe_pcr_enable(struct vpfe_ccdc *ccdc, int flag)
+{
+ vpfe_reg_write(ccdc, !!flag, VPFE_PCR);
+}
+
+static void vpfe_config_enable(struct vpfe_ccdc *ccdc, int flag)
+{
+ unsigned int cfg;
+
+ if (!flag) {
+ cfg = vpfe_reg_read(ccdc, VPFE_CONFIG);
+ cfg &= ~(VPFE_CONFIG_EN_ENABLE << VPFE_CONFIG_EN_SHIFT);
+ } else {
+ cfg = VPFE_CONFIG_EN_ENABLE << VPFE_CONFIG_EN_SHIFT;
+ }
+
+ vpfe_reg_write(ccdc, cfg, VPFE_CONFIG);
+}
+
+static void vpfe_ccdc_setwin(struct vpfe_ccdc *ccdc,
+ struct v4l2_rect *image_win,
+ enum ccdc_frmfmt frm_fmt,
+ int bpp)
+{
+ int horz_start, horz_nr_pixels;
+ int vert_start, vert_nr_lines;
+ int val, mid_img;
+
+ /*
+ * ppc - per pixel count. indicates how many pixels per cell
+ * output to SDRAM. example, for ycbcr, it is one y and one c, so 2.
+ * raw capture this is 1
+ */
+ horz_start = image_win->left * bpp;
+ horz_nr_pixels = (image_win->width * bpp) - 1;
+ vpfe_reg_write(ccdc, (horz_start << VPFE_HORZ_INFO_SPH_SHIFT) |
+ horz_nr_pixels, VPFE_HORZ_INFO);
+
+ vert_start = image_win->top;
+
+ if (frm_fmt == CCDC_FRMFMT_INTERLACED) {
+ vert_nr_lines = (image_win->height >> 1) - 1;
+ vert_start >>= 1;
+ /* Since first line doesn't have any data */
+ vert_start += 1;
+ /* configure VDINT0 */
+ val = (vert_start << VPFE_VDINT_VDINT0_SHIFT);
+ } else {
+ /* Since first line doesn't have any data */
+ vert_start += 1;
+ vert_nr_lines = image_win->height - 1;
+ /*
+ * configure VDINT0 and VDINT1. VDINT1 will be at half
+ * of image height
+ */
+ mid_img = vert_start + (image_win->height / 2);
+ val = (vert_start << VPFE_VDINT_VDINT0_SHIFT) |
+ (mid_img & VPFE_VDINT_VDINT1_MASK);
+ }
+
+ vpfe_reg_write(ccdc, val, VPFE_VDINT);
+
+ vpfe_reg_write(ccdc, (vert_start << VPFE_VERT_START_SLV0_SHIFT) |
+ vert_start, VPFE_VERT_START);
+ vpfe_reg_write(ccdc, vert_nr_lines, VPFE_VERT_LINES);
+}
+
+static void vpfe_reg_dump(struct vpfe_ccdc *ccdc)
+{
+ struct vpfe_device *vpfe = to_vpfe(ccdc);
+
+ vpfe_dbg(3, vpfe, "ALAW: 0x%x\n", vpfe_reg_read(ccdc, VPFE_ALAW));
+ vpfe_dbg(3, vpfe, "CLAMP: 0x%x\n", vpfe_reg_read(ccdc, VPFE_CLAMP));
+ vpfe_dbg(3, vpfe, "DCSUB: 0x%x\n", vpfe_reg_read(ccdc, VPFE_DCSUB));
+ vpfe_dbg(3, vpfe, "BLKCMP: 0x%x\n", vpfe_reg_read(ccdc, VPFE_BLKCMP));
+ vpfe_dbg(3, vpfe, "COLPTN: 0x%x\n", vpfe_reg_read(ccdc, VPFE_COLPTN));
+ vpfe_dbg(3, vpfe, "SDOFST: 0x%x\n", vpfe_reg_read(ccdc, VPFE_SDOFST));
+ vpfe_dbg(3, vpfe, "SYN_MODE: 0x%x\n",
+ vpfe_reg_read(ccdc, VPFE_SYNMODE));
+ vpfe_dbg(3, vpfe, "HSIZE_OFF: 0x%x\n",
+ vpfe_reg_read(ccdc, VPFE_HSIZE_OFF));
+ vpfe_dbg(3, vpfe, "HORZ_INFO: 0x%x\n",
+ vpfe_reg_read(ccdc, VPFE_HORZ_INFO));
+ vpfe_dbg(3, vpfe, "VERT_START: 0x%x\n",
+ vpfe_reg_read(ccdc, VPFE_VERT_START));
+ vpfe_dbg(3, vpfe, "VERT_LINES: 0x%x\n",
+ vpfe_reg_read(ccdc, VPFE_VERT_LINES));
+}
+
+static int
+vpfe_ccdc_validate_param(struct vpfe_ccdc *ccdc,
+ struct vpfe_ccdc_config_params_raw *ccdcparam)
+{
+ struct vpfe_device *vpfe = to_vpfe(ccdc);
+ u8 max_gamma, max_data;
+
+ if (!ccdcparam->alaw.enable)
+ return 0;
+
+ max_gamma = ccdc_gamma_width_max_bit(ccdcparam->alaw.gamma_wd);
+ max_data = ccdc_data_size_max_bit(ccdcparam->data_sz);
+
+ if (ccdcparam->alaw.gamma_wd > VPFE_CCDC_GAMMA_BITS_09_0 ||
+ ccdcparam->alaw.gamma_wd < VPFE_CCDC_GAMMA_BITS_15_6 ||
+ max_gamma > max_data) {
+ vpfe_dbg(1, vpfe, "Invalid data line select\n");
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static void
+vpfe_ccdc_update_raw_params(struct vpfe_ccdc *ccdc,
+ struct vpfe_ccdc_config_params_raw *raw_params)
+{
+ struct vpfe_ccdc_config_params_raw *config_params =
+ &ccdc->ccdc_cfg.bayer.config_params;
+
+ config_params = raw_params;
+}
+
+/*
+ * vpfe_ccdc_restore_defaults()
+ * This function will write defaults to all CCDC registers
+ */
+static void vpfe_ccdc_restore_defaults(struct vpfe_ccdc *ccdc)
+{
+ int i;
+
+ /* Disable CCDC */
+ vpfe_pcr_enable(ccdc, 0);
+
+ /* set all registers to default value */
+ for (i = 4; i <= 0x94; i += 4)
+ vpfe_reg_write(ccdc, 0, i);
+
+ vpfe_reg_write(ccdc, VPFE_NO_CULLING, VPFE_CULLING);
+ vpfe_reg_write(ccdc, VPFE_CCDC_GAMMA_BITS_11_2, VPFE_ALAW);
+}
+
+static int vpfe_ccdc_close(struct vpfe_ccdc *ccdc, struct device *dev)
+{
+ int dma_cntl, i, pcr;
+
+ /* If the CCDC module is still busy wait for it to be done */
+ for (i = 0; i < 10; i++) {
+ usleep_range(5000, 6000);
+ pcr = vpfe_reg_read(ccdc, VPFE_PCR);
+ if (!pcr)
+ break;
+
+ /* make sure it it is disabled */
+ vpfe_pcr_enable(ccdc, 0);
+ }
+
+ /* Disable CCDC by resetting all register to default POR values */
+ vpfe_ccdc_restore_defaults(ccdc);
+
+ /* if DMA_CNTL overflow bit is set. Clear it
+ * It appears to take a while for this to become quiescent ~20ms
+ */
+ for (i = 0; i < 10; i++) {
+ dma_cntl = vpfe_reg_read(ccdc, VPFE_DMA_CNTL);
+ if (!(dma_cntl & VPFE_DMA_CNTL_OVERFLOW))
+ break;
+
+ /* Clear the overflow bit */
+ vpfe_reg_write(ccdc, dma_cntl, VPFE_DMA_CNTL);
+ usleep_range(5000, 6000);
+ }
+
+ /* Disabled the module at the CONFIG level */
+ vpfe_config_enable(ccdc, 0);
+
+ pm_runtime_put_sync(dev);
+
+ return 0;
+}
+
+static int vpfe_ccdc_set_params(struct vpfe_ccdc *ccdc, void __user *params)
+{
+ struct vpfe_device *vpfe = container_of(ccdc, struct vpfe_device, ccdc);
+ struct vpfe_ccdc_config_params_raw raw_params;
+ int x;
+
+ if (ccdc->ccdc_cfg.if_type != VPFE_RAW_BAYER)
+ return -EINVAL;
+
+ x = copy_from_user(&raw_params, params, sizeof(raw_params));
+ if (x) {
+ vpfe_dbg(1, vpfe,
+ "vpfe_ccdc_set_params: error in copying ccdc params, %d\n",
+ x);
+ return -EFAULT;
+ }
+
+ if (!vpfe_ccdc_validate_param(ccdc, &raw_params)) {
+ vpfe_ccdc_update_raw_params(ccdc, &raw_params);
+ return 0;
+ }
+
+ return -EINVAL;
+}
+
+/*
+ * vpfe_ccdc_config_ycbcr()
+ * This function will configure CCDC for YCbCr video capture
+ */
+static void vpfe_ccdc_config_ycbcr(struct vpfe_ccdc *ccdc)
+{
+ struct vpfe_device *vpfe = container_of(ccdc, struct vpfe_device, ccdc);
+ struct ccdc_params_ycbcr *params = &ccdc->ccdc_cfg.ycbcr;
+ u32 syn_mode;
+
+ vpfe_dbg(3, vpfe, "vpfe_ccdc_config_ycbcr:\n");
+ /*
+ * first restore the CCDC registers to default values
+ * This is important since we assume default values to be set in
+ * a lot of registers that we didn't touch
+ */
+ vpfe_ccdc_restore_defaults(ccdc);
+
+ /*
+ * configure pixel format, frame format, configure video frame
+ * format, enable output to SDRAM, enable internal timing generator
+ * and 8bit pack mode
+ */
+ syn_mode = (((params->pix_fmt & VPFE_SYN_MODE_INPMOD_MASK) <<
+ VPFE_SYN_MODE_INPMOD_SHIFT) |
+ ((params->frm_fmt & VPFE_SYN_FLDMODE_MASK) <<
+ VPFE_SYN_FLDMODE_SHIFT) | VPFE_VDHDEN_ENABLE |
+ VPFE_WEN_ENABLE | VPFE_DATA_PACK_ENABLE);
+
+ /* setup BT.656 sync mode */
+ if (params->bt656_enable) {
+ vpfe_reg_write(ccdc, VPFE_REC656IF_BT656_EN, VPFE_REC656IF);
+
+ /*
+ * configure the FID, VD, HD pin polarity,
+ * fld,hd pol positive, vd negative, 8-bit data
+ */
+ syn_mode |= VPFE_SYN_MODE_VD_POL_NEGATIVE;
+ if (ccdc->ccdc_cfg.if_type == VPFE_BT656_10BIT)
+ syn_mode |= VPFE_SYN_MODE_10BITS;
+ else
+ syn_mode |= VPFE_SYN_MODE_8BITS;
+ } else {
+ /* y/c external sync mode */
+ syn_mode |= (((params->fid_pol & VPFE_FID_POL_MASK) <<
+ VPFE_FID_POL_SHIFT) |
+ ((params->hd_pol & VPFE_HD_POL_MASK) <<
+ VPFE_HD_POL_SHIFT) |
+ ((params->vd_pol & VPFE_VD_POL_MASK) <<
+ VPFE_VD_POL_SHIFT));
+ }
+ vpfe_reg_write(ccdc, syn_mode, VPFE_SYNMODE);
+
+ /* configure video window */
+ vpfe_ccdc_setwin(ccdc, ¶ms->win,
+ params->frm_fmt, params->bytesperpixel);
+
+ /*
+ * configure the order of y cb cr in SDRAM, and disable latch
+ * internal register on vsync
+ */
+ if (ccdc->ccdc_cfg.if_type == VPFE_BT656_10BIT)
+ vpfe_reg_write(ccdc,
+ (params->pix_order << VPFE_CCDCFG_Y8POS_SHIFT) |
+ VPFE_LATCH_ON_VSYNC_DISABLE |
+ VPFE_CCDCFG_BW656_10BIT, VPFE_CCDCFG);
+ else
+ vpfe_reg_write(ccdc,
+ (params->pix_order << VPFE_CCDCFG_Y8POS_SHIFT) |
+ VPFE_LATCH_ON_VSYNC_DISABLE, VPFE_CCDCFG);
+
+ /*
+ * configure the horizontal line offset. This should be a
+ * on 32 byte boundary. So clear LSB 5 bits
+ */
+ vpfe_reg_write(ccdc, params->bytesperline, VPFE_HSIZE_OFF);
+
+ /* configure the memory line offset */
+ if (params->buf_type == CCDC_BUFTYPE_FLD_INTERLEAVED)
+ /* two fields are interleaved in memory */
+ vpfe_reg_write(ccdc, VPFE_SDOFST_FIELD_INTERLEAVED,
+ VPFE_SDOFST);
+}
+
+static void
+vpfe_ccdc_config_black_clamp(struct vpfe_ccdc *ccdc,
+ struct vpfe_ccdc_black_clamp *bclamp)
+{
+ u32 val;
+
+ if (!bclamp->enable) {
+ /* configure DCSub */
+ val = (bclamp->dc_sub) & VPFE_BLK_DC_SUB_MASK;
+ vpfe_reg_write(ccdc, val, VPFE_DCSUB);
+ vpfe_reg_write(ccdc, VPFE_CLAMP_DEFAULT_VAL, VPFE_CLAMP);
+ return;
+ }
+ /*
+ * Configure gain, Start pixel, No of line to be avg,
+ * No of pixel/line to be avg, & Enable the Black clamping
+ */
+ val = ((bclamp->sgain & VPFE_BLK_SGAIN_MASK) |
+ ((bclamp->start_pixel & VPFE_BLK_ST_PXL_MASK) <<
+ VPFE_BLK_ST_PXL_SHIFT) |
+ ((bclamp->sample_ln & VPFE_BLK_SAMPLE_LINE_MASK) <<
+ VPFE_BLK_SAMPLE_LINE_SHIFT) |
+ ((bclamp->sample_pixel & VPFE_BLK_SAMPLE_LN_MASK) <<
+ VPFE_BLK_SAMPLE_LN_SHIFT) | VPFE_BLK_CLAMP_ENABLE);
+ vpfe_reg_write(ccdc, val, VPFE_CLAMP);
+ /* If Black clamping is enable then make dcsub 0 */
+ vpfe_reg_write(ccdc, VPFE_DCSUB_DEFAULT_VAL, VPFE_DCSUB);
+}
+
+static void
+vpfe_ccdc_config_black_compense(struct vpfe_ccdc *ccdc,
+ struct vpfe_ccdc_black_compensation *bcomp)
+{
+ u32 val;
+
+ val = ((bcomp->b & VPFE_BLK_COMP_MASK) |
+ ((bcomp->gb & VPFE_BLK_COMP_MASK) <<
+ VPFE_BLK_COMP_GB_COMP_SHIFT) |
+ ((bcomp->gr & VPFE_BLK_COMP_MASK) <<
+ VPFE_BLK_COMP_GR_COMP_SHIFT) |
+ ((bcomp->r & VPFE_BLK_COMP_MASK) <<
+ VPFE_BLK_COMP_R_COMP_SHIFT));
+ vpfe_reg_write(ccdc, val, VPFE_BLKCMP);
+}
+
+/*
+ * vpfe_ccdc_config_raw()
+ * This function will configure CCDC for Raw capture mode
+ */
+static void vpfe_ccdc_config_raw(struct vpfe_ccdc *ccdc)
+{
+ struct vpfe_device *vpfe = container_of(ccdc, struct vpfe_device, ccdc);
+ struct vpfe_ccdc_config_params_raw *config_params =
+ &ccdc->ccdc_cfg.bayer.config_params;
+ struct ccdc_params_raw *params = &ccdc->ccdc_cfg.bayer;
+ unsigned int syn_mode;
+ unsigned int val;
+
+ vpfe_dbg(3, vpfe, "vpfe_ccdc_config_raw:\n");
+
+ /* Reset CCDC */
+ vpfe_ccdc_restore_defaults(ccdc);
+
+ /* Disable latching function registers on VSYNC */
+ vpfe_reg_write(ccdc, VPFE_LATCH_ON_VSYNC_DISABLE, VPFE_CCDCFG);
+
+ /*
+ * Configure the vertical sync polarity(SYN_MODE.VDPOL),
+ * horizontal sync polarity (SYN_MODE.HDPOL), frame id polarity
+ * (SYN_MODE.FLDPOL), frame format(progressive or interlace),
+ * data size(SYNMODE.DATSIZ), &pixel format (Input mode), output
+ * SDRAM, enable internal timing generator
+ */
+ syn_mode = (((params->vd_pol & VPFE_VD_POL_MASK) << VPFE_VD_POL_SHIFT) |
+ ((params->hd_pol & VPFE_HD_POL_MASK) << VPFE_HD_POL_SHIFT) |
+ ((params->fid_pol & VPFE_FID_POL_MASK) <<
+ VPFE_FID_POL_SHIFT) | ((params->frm_fmt &
+ VPFE_FRM_FMT_MASK) << VPFE_FRM_FMT_SHIFT) |
+ ((config_params->data_sz & VPFE_DATA_SZ_MASK) <<
+ VPFE_DATA_SZ_SHIFT) | ((params->pix_fmt &
+ VPFE_PIX_FMT_MASK) << VPFE_PIX_FMT_SHIFT) |
+ VPFE_WEN_ENABLE | VPFE_VDHDEN_ENABLE);
+
+ /* Enable and configure aLaw register if needed */
+ if (config_params->alaw.enable) {
+ val = ((config_params->alaw.gamma_wd &
+ VPFE_ALAW_GAMMA_WD_MASK) | VPFE_ALAW_ENABLE);
+ vpfe_reg_write(ccdc, val, VPFE_ALAW);
+ vpfe_dbg(3, vpfe, "\nWriting 0x%x to ALAW...\n", val);
+ }
+
+ /* Configure video window */
+ vpfe_ccdc_setwin(ccdc, ¶ms->win, params->frm_fmt,
+ params->bytesperpixel);
+
+ /* Configure Black Clamp */
+ vpfe_ccdc_config_black_clamp(ccdc, &config_params->blk_clamp);
+
+ /* Configure Black level compensation */
+ vpfe_ccdc_config_black_compense(ccdc, &config_params->blk_comp);
+
+ /* If data size is 8 bit then pack the data */
+ if ((config_params->data_sz == VPFE_CCDC_DATA_8BITS) ||
+ config_params->alaw.enable)
+ syn_mode |= VPFE_DATA_PACK_ENABLE;
+
+ /*
+ * Configure Horizontal offset register. If pack 8 is enabled then
+ * 1 pixel will take 1 byte
+ */
+ vpfe_reg_write(ccdc, params->bytesperline, VPFE_HSIZE_OFF);
+
+ vpfe_dbg(3, vpfe, "Writing %d (%x) to HSIZE_OFF\n",
+ params->bytesperline, params->bytesperline);
+
+ /* Set value for SDOFST */
+ if (params->frm_fmt == CCDC_FRMFMT_INTERLACED) {
+ if (params->image_invert_enable) {
+ /* For interlace inverse mode */
+ vpfe_reg_write(ccdc, VPFE_INTERLACED_IMAGE_INVERT,
+ VPFE_SDOFST);
+ } else {
+ /* For interlace non inverse mode */
+ vpfe_reg_write(ccdc, VPFE_INTERLACED_NO_IMAGE_INVERT,
+ VPFE_SDOFST);
+ }
+ } else if (params->frm_fmt == CCDC_FRMFMT_PROGRESSIVE) {
+ vpfe_reg_write(ccdc, VPFE_PROGRESSIVE_NO_IMAGE_INVERT,
+ VPFE_SDOFST);
+ }
+
+ vpfe_reg_write(ccdc, syn_mode, VPFE_SYNMODE);
+
+ vpfe_reg_dump(ccdc);
+}
+
+static inline int
+vpfe_ccdc_set_buftype(struct vpfe_ccdc *ccdc,
+ enum ccdc_buftype buf_type)
+{
+ if (ccdc->ccdc_cfg.if_type == VPFE_RAW_BAYER)
+ ccdc->ccdc_cfg.bayer.buf_type = buf_type;
+ else
+ ccdc->ccdc_cfg.ycbcr.buf_type = buf_type;
+
+ return 0;
+}
+
+static inline enum ccdc_buftype vpfe_ccdc_get_buftype(struct vpfe_ccdc *ccdc)
+{
+ if (ccdc->ccdc_cfg.if_type == VPFE_RAW_BAYER)
+ return ccdc->ccdc_cfg.bayer.buf_type;
+
+ return ccdc->ccdc_cfg.ycbcr.buf_type;
+}
+
+static int vpfe_ccdc_set_pixel_format(struct vpfe_ccdc *ccdc, u32 pixfmt)
+{
+ struct vpfe_device *vpfe = container_of(ccdc, struct vpfe_device, ccdc);
+
+ vpfe_dbg(1, vpfe, "vpfe_ccdc_set_pixel_format: if_type: %d, pixfmt:%s\n",
+ ccdc->ccdc_cfg.if_type, print_fourcc(pixfmt));
+
+ if (ccdc->ccdc_cfg.if_type == VPFE_RAW_BAYER) {
+ ccdc->ccdc_cfg.bayer.pix_fmt = CCDC_PIXFMT_RAW;
+ /*
+ * Need to clear it in case it was left on
+ * after the last capture.
+ */
+ ccdc->ccdc_cfg.bayer.config_params.alaw.enable = 0;
+
+ switch (pixfmt) {
+ case V4L2_PIX_FMT_SBGGR8:
+ ccdc->ccdc_cfg.bayer.config_params.alaw.enable = 1;
+ break;
+
+ case V4L2_PIX_FMT_YUYV:
+ case V4L2_PIX_FMT_UYVY:
+ case V4L2_PIX_FMT_YUV420:
+ case V4L2_PIX_FMT_NV12:
+ case V4L2_PIX_FMT_RGB565X:
+ break;
+
+ case V4L2_PIX_FMT_SBGGR16:
+ default:
+ return -EINVAL;
+ }
+ } else {
+ switch (pixfmt) {
+ case V4L2_PIX_FMT_YUYV:
+ ccdc->ccdc_cfg.ycbcr.pix_order = CCDC_PIXORDER_YCBYCR;
+ break;
+
+ case V4L2_PIX_FMT_UYVY:
+ ccdc->ccdc_cfg.ycbcr.pix_order = CCDC_PIXORDER_CBYCRY;
+ break;
+
+ default:
+ return -EINVAL;
+ }
+ }
+
+ return 0;
+}
+
+static u32 vpfe_ccdc_get_pixel_format(struct vpfe_ccdc *ccdc)
+{
+ u32 pixfmt;
+
+ if (ccdc->ccdc_cfg.if_type == VPFE_RAW_BAYER) {
+ pixfmt = V4L2_PIX_FMT_YUYV;
+ } else {
+ if (ccdc->ccdc_cfg.ycbcr.pix_order == CCDC_PIXORDER_YCBYCR)
+ pixfmt = V4L2_PIX_FMT_YUYV;
+ else
+ pixfmt = V4L2_PIX_FMT_UYVY;
+ }
+
+ return pixfmt;
+}
+
+static int
+vpfe_ccdc_set_image_window(struct vpfe_ccdc *ccdc,
+ struct v4l2_rect *win, unsigned int bpp)
+{
+ if (ccdc->ccdc_cfg.if_type == VPFE_RAW_BAYER) {
+ ccdc->ccdc_cfg.bayer.win = *win;
+ ccdc->ccdc_cfg.bayer.bytesperpixel = bpp;
+ ccdc->ccdc_cfg.bayer.bytesperline = ALIGN(win->width * bpp, 32);
+ } else {
+ ccdc->ccdc_cfg.ycbcr.win = *win;
+ ccdc->ccdc_cfg.ycbcr.bytesperpixel = bpp;
+ ccdc->ccdc_cfg.ycbcr.bytesperline = ALIGN(win->width * bpp, 32);
+ }
+
+ return 0;
+}
+
+static inline void
+vpfe_ccdc_get_image_window(struct vpfe_ccdc *ccdc,
+ struct v4l2_rect *win)
+{
+ if (ccdc->ccdc_cfg.if_type == VPFE_RAW_BAYER)
+ *win = ccdc->ccdc_cfg.bayer.win;
+ else
+ *win = ccdc->ccdc_cfg.ycbcr.win;
+}
+
+static inline unsigned int vpfe_ccdc_get_line_length(struct vpfe_ccdc *ccdc)
+{
+ if (ccdc->ccdc_cfg.if_type == VPFE_RAW_BAYER)
+ return ccdc->ccdc_cfg.bayer.bytesperline;
+
+ return ccdc->ccdc_cfg.ycbcr.bytesperline;
+}
+
+static inline int
+vpfe_ccdc_set_frame_format(struct vpfe_ccdc *ccdc,
+ enum ccdc_frmfmt frm_fmt)
+{
+ if (ccdc->ccdc_cfg.if_type == VPFE_RAW_BAYER)
+ ccdc->ccdc_cfg.bayer.frm_fmt = frm_fmt;
+ else
+ ccdc->ccdc_cfg.ycbcr.frm_fmt = frm_fmt;
+
+ return 0;
+}
+
+static inline enum ccdc_frmfmt
+vpfe_ccdc_get_frame_format(struct vpfe_ccdc *ccdc)
+{
+ if (ccdc->ccdc_cfg.if_type == VPFE_RAW_BAYER)
+ return ccdc->ccdc_cfg.bayer.frm_fmt;
+
+ return ccdc->ccdc_cfg.ycbcr.frm_fmt;
+}
+
+static inline int vpfe_ccdc_getfid(struct vpfe_ccdc *ccdc)
+{
+ return (vpfe_reg_read(ccdc, VPFE_SYNMODE) >> 15) & 1;
+}
+
+static inline void vpfe_set_sdr_addr(struct vpfe_ccdc *ccdc, unsigned long addr)
+{
+ vpfe_reg_write(ccdc, addr & 0xffffffe0, VPFE_SDR_ADDR);
+}
+
+static int vpfe_ccdc_set_hw_if_params(struct vpfe_ccdc *ccdc,
+ struct vpfe_hw_if_param *params)
+{
+ struct vpfe_device *vpfe = container_of(ccdc, struct vpfe_device, ccdc);
+
+ ccdc->ccdc_cfg.if_type = params->if_type;
+
+ switch (params->if_type) {
+ case VPFE_BT656:
+ case VPFE_YCBCR_SYNC_16:
+ case VPFE_YCBCR_SYNC_8:
+ case VPFE_BT656_10BIT:
+ ccdc->ccdc_cfg.ycbcr.vd_pol = params->vdpol;
+ ccdc->ccdc_cfg.ycbcr.hd_pol = params->hdpol;
+ break;
+
+ case VPFE_RAW_BAYER:
+ ccdc->ccdc_cfg.bayer.vd_pol = params->vdpol;
+ ccdc->ccdc_cfg.bayer.hd_pol = params->hdpol;
+ if (params->bus_width == 10)
+ ccdc->ccdc_cfg.bayer.config_params.data_sz =
+ VPFE_CCDC_DATA_10BITS;
+ else
+ ccdc->ccdc_cfg.bayer.config_params.data_sz =
+ VPFE_CCDC_DATA_8BITS;
+ vpfe_dbg(1, vpfe, "params.bus_width: %d\n",
+ params->bus_width);
+ vpfe_dbg(1, vpfe, "config_params.data_sz: %d\n",
+ ccdc->ccdc_cfg.bayer.config_params.data_sz);
+ break;
+
+ default:
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static void vpfe_clear_intr(struct vpfe_ccdc *ccdc, int vdint)
+{
+ unsigned int vpfe_int_status;
+
+ vpfe_int_status = vpfe_reg_read(ccdc, VPFE_IRQ_STS);
+
+ switch (vdint) {
+ /* VD0 interrupt */
+ case VPFE_VDINT0:
+ vpfe_int_status &= ~VPFE_VDINT0;
+ vpfe_int_status |= VPFE_VDINT0;
+ break;
+
+ /* VD1 interrupt */
+ case VPFE_VDINT1:
+ vpfe_int_status &= ~VPFE_VDINT1;
+ vpfe_int_status |= VPFE_VDINT1;
+ break;
+
+ /* VD2 interrupt */
+ case VPFE_VDINT2:
+ vpfe_int_status &= ~VPFE_VDINT2;
+ vpfe_int_status |= VPFE_VDINT2;
+ break;
+
+ /* Clear all interrupts */
+ default:
+ vpfe_int_status &= ~(VPFE_VDINT0 |
+ VPFE_VDINT1 |
+ VPFE_VDINT2);
+ vpfe_int_status |= (VPFE_VDINT0 |
+ VPFE_VDINT1 |
+ VPFE_VDINT2);
+ break;
+ }
+ /* Clear specific VDINT from the status register */
+ vpfe_reg_write(ccdc, vpfe_int_status, VPFE_IRQ_STS);
+
+ vpfe_int_status = vpfe_reg_read(ccdc, VPFE_IRQ_STS);
+
+ /* Acknowledge that we are done with all interrupts */
+ vpfe_reg_write(ccdc, 1, VPFE_IRQ_EOI);
+}
+
+static void vpfe_ccdc_config_defaults(struct vpfe_ccdc *ccdc)
+{
+ ccdc->ccdc_cfg.if_type = VPFE_RAW_BAYER;
+
+ ccdc->ccdc_cfg.ycbcr.pix_fmt = CCDC_PIXFMT_YCBCR_8BIT;
+ ccdc->ccdc_cfg.ycbcr.frm_fmt = CCDC_FRMFMT_INTERLACED;
+ ccdc->ccdc_cfg.ycbcr.fid_pol = VPFE_PINPOL_POSITIVE;
+ ccdc->ccdc_cfg.ycbcr.vd_pol = VPFE_PINPOL_POSITIVE;
+ ccdc->ccdc_cfg.ycbcr.hd_pol = VPFE_PINPOL_POSITIVE;
+ ccdc->ccdc_cfg.ycbcr.pix_order = CCDC_PIXORDER_CBYCRY;
+ ccdc->ccdc_cfg.ycbcr.buf_type = CCDC_BUFTYPE_FLD_INTERLEAVED;
+
+ ccdc->ccdc_cfg.ycbcr.win.left = 0;
+ ccdc->ccdc_cfg.ycbcr.win.top = 0;
+ ccdc->ccdc_cfg.ycbcr.win.width = 720;
+ ccdc->ccdc_cfg.ycbcr.win.height = 576;
+ ccdc->ccdc_cfg.ycbcr.bt656_enable = 1;
+
+ ccdc->ccdc_cfg.bayer.pix_fmt = CCDC_PIXFMT_RAW;
+ ccdc->ccdc_cfg.bayer.frm_fmt = CCDC_FRMFMT_PROGRESSIVE;
+ ccdc->ccdc_cfg.bayer.fid_pol = VPFE_PINPOL_POSITIVE;
+ ccdc->ccdc_cfg.bayer.vd_pol = VPFE_PINPOL_POSITIVE;
+ ccdc->ccdc_cfg.bayer.hd_pol = VPFE_PINPOL_POSITIVE;
+
+ ccdc->ccdc_cfg.bayer.win.left = 0;
+ ccdc->ccdc_cfg.bayer.win.top = 0;
+ ccdc->ccdc_cfg.bayer.win.width = 800;
+ ccdc->ccdc_cfg.bayer.win.height = 600;
+ ccdc->ccdc_cfg.bayer.config_params.data_sz = VPFE_CCDC_DATA_8BITS;
+ ccdc->ccdc_cfg.bayer.config_params.alaw.gamma_wd =
+ VPFE_CCDC_GAMMA_BITS_09_0;
+}
+
+/*
+ * vpfe_get_ccdc_image_format - Get image parameters based on CCDC settings
+ */
+static int vpfe_get_ccdc_image_format(struct vpfe_device *vpfe,
+ struct v4l2_format *f)
+{
+ struct v4l2_rect image_win;
+ enum ccdc_buftype buf_type;
+ enum ccdc_frmfmt frm_fmt;
+
+ memset(f, 0, sizeof(*f));
+ f->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
+ vpfe_ccdc_get_image_window(&vpfe->ccdc, &image_win);
+ f->fmt.pix.width = image_win.width;
+ f->fmt.pix.height = image_win.height;
+ f->fmt.pix.bytesperline = vpfe_ccdc_get_line_length(&vpfe->ccdc);
+ f->fmt.pix.sizeimage = f->fmt.pix.bytesperline *
+ f->fmt.pix.height;
+ buf_type = vpfe_ccdc_get_buftype(&vpfe->ccdc);
+ f->fmt.pix.pixelformat = vpfe_ccdc_get_pixel_format(&vpfe->ccdc);
+ frm_fmt = vpfe_ccdc_get_frame_format(&vpfe->ccdc);
+
+ if (frm_fmt == CCDC_FRMFMT_PROGRESSIVE) {
+ f->fmt.pix.field = V4L2_FIELD_NONE;
+ } else if (frm_fmt == CCDC_FRMFMT_INTERLACED) {
+ if (buf_type == CCDC_BUFTYPE_FLD_INTERLEAVED) {
+ f->fmt.pix.field = V4L2_FIELD_INTERLACED;
+ } else if (buf_type == CCDC_BUFTYPE_FLD_SEPARATED) {
+ f->fmt.pix.field = V4L2_FIELD_SEQ_TB;
+ } else {
+ vpfe_err(vpfe, "Invalid buf_type\n");
+ return -EINVAL;
+ }
+ } else {
+ vpfe_err(vpfe, "Invalid frm_fmt\n");
+ return -EINVAL;
+ }
+ return 0;
+}
+
+static int vpfe_config_ccdc_image_format(struct vpfe_device *vpfe)
+{
+ enum ccdc_frmfmt frm_fmt = CCDC_FRMFMT_INTERLACED;
+ int ret;
+
+ vpfe_dbg(2, vpfe, "vpfe_config_ccdc_image_format\n");
+
+ vpfe_dbg(1, vpfe, "pixelformat: %s\n",
+ print_fourcc(vpfe->fmt.fmt.pix.pixelformat));
+
+ if (vpfe_ccdc_set_pixel_format(&vpfe->ccdc,
+ vpfe->fmt.fmt.pix.pixelformat) < 0) {
+ vpfe_err(vpfe, "couldn't set pix format in ccdc\n");
+ return -EINVAL;
+ }
+
+ /* configure the image window */
+ vpfe_ccdc_set_image_window(&vpfe->ccdc, &vpfe->crop, vpfe->bpp);
+
+ switch (vpfe->fmt.fmt.pix.field) {
+ case V4L2_FIELD_INTERLACED:
+ /* do nothing, since it is default */
+ ret = vpfe_ccdc_set_buftype(
+ &vpfe->ccdc,
+ CCDC_BUFTYPE_FLD_INTERLEAVED);
+ break;
+
+ case V4L2_FIELD_NONE:
+ frm_fmt = CCDC_FRMFMT_PROGRESSIVE;
+ /* buffer type only applicable for interlaced scan */
+ break;
+
+ case V4L2_FIELD_SEQ_TB:
+ ret = vpfe_ccdc_set_buftype(
+ &vpfe->ccdc,
+ CCDC_BUFTYPE_FLD_SEPARATED);
+ break;
+
+ default:
+ return -EINVAL;
+ }
+
+ if (ret)
+ return ret;
+
+ return vpfe_ccdc_set_frame_format(&vpfe->ccdc, frm_fmt);
+}
+
+/*
+ * vpfe_config_image_format()
+ * For a given standard, this functions sets up the default
+ * pix format & crop values in the vpfe device and ccdc. It first
+ * starts with defaults based values from the standard table.
+ * It then checks if sub device support g_mbus_fmt and then override the
+ * values based on that.Sets crop values to match with scan resolution
+ * starting at 0,0. It calls vpfe_config_ccdc_image_format() set the
+ * values in ccdc
+ */
+static int vpfe_config_image_format(struct vpfe_device *vpfe,
+ v4l2_std_id std_id)
+{
+ struct v4l2_pix_format *pix = &vpfe->fmt.fmt.pix;
+ int i, ret;
+
+ for (i = 0; i < ARRAY_SIZE(vpfe_standards); i++) {
+ if (vpfe_standards[i].std_id & std_id) {
+ vpfe->std_info.active_pixels =
+ vpfe_standards[i].width;
+ vpfe->std_info.active_lines =
+ vpfe_standards[i].height;
+ vpfe->std_info.frame_format =
+ vpfe_standards[i].frame_format;
+ vpfe->std_index = i;
+
+ break;
+ }
+ }
+
+ if (i == ARRAY_SIZE(vpfe_standards)) {
+ vpfe_err(vpfe, "standard not supported\n");
+ return -EINVAL;
+ }
+
+ vpfe->crop.top = vpfe->crop.left = 0;
+ vpfe->crop.width = vpfe->std_info.active_pixels;
+ vpfe->crop.height = vpfe->std_info.active_lines;
+ pix->width = vpfe->crop.width;
+ pix->height = vpfe->crop.height;
+ pix->pixelformat = V4L2_PIX_FMT_YUYV;
+
+ /* first field and frame format based on standard frame format */
+ if (vpfe->std_info.frame_format)
+ pix->field = V4L2_FIELD_INTERLACED;
+ else
+ pix->field = V4L2_FIELD_NONE;
+
+ ret = __vpfe_get_format(vpfe, &vpfe->fmt, &vpfe->bpp);
+ if (ret)
+ return ret;
+
+ /* Update the crop window based on found values */
+ vpfe->crop.width = pix->width;
+ vpfe->crop.height = pix->height;
+
+ return vpfe_config_ccdc_image_format(vpfe);
+}
+
+static int vpfe_initialize_device(struct vpfe_device *vpfe)
+{
+ struct vpfe_subdev_info *sdinfo;
+ int ret;
+
+ sdinfo = &vpfe->cfg->sub_devs[0];
+ sdinfo->sd = vpfe->sd[0];
+ vpfe->current_input = 0;
+ vpfe->std_index = 0;
+ /* Configure the default format information */
+ ret = vpfe_config_image_format(vpfe,
+ vpfe_standards[vpfe->std_index].std_id);
+ if (ret)
+ return ret;
+
+ pm_runtime_get_sync(vpfe->pdev);
+
+ vpfe_config_enable(&vpfe->ccdc, 1);
+
+ vpfe_ccdc_restore_defaults(&vpfe->ccdc);
+
+ /* Clear all VPFE interrupts */
+ vpfe_clear_intr(&vpfe->ccdc, -1);
+
+ return ret;
+}
+
+/*
+ * vpfe_release : This function is based on the vb2_fop_release
+ * helper function.
+ * It has been augmented to handle module power management,
+ * by disabling/enabling h/w module fcntl clock when necessary.
+ */
+static int vpfe_release(struct file *file)
+{
+ struct vpfe_device *vpfe = video_drvdata(file);
+ int ret;
+
+ mutex_lock(&vpfe->lock);
+
+ ret = _vb2_fop_release(file, NULL);
+ if (v4l2_fh_is_singular_file(file))
+ vpfe_ccdc_close(&vpfe->ccdc, vpfe->pdev);
+
+ mutex_unlock(&vpfe->lock);
+
+ return ret;
+}
+
+/*
+ * vpfe_open : This function is based on the v4l2_fh_open helper function.
+ * It has been augmented to handle module power management,
+ * by disabling/enabling h/w module fcntl clock when necessary.
+ */
+static int vpfe_open(struct file *file)
+{
+ struct vpfe_device *vpfe = video_drvdata(file);
+ int ret;
+
+ mutex_lock(&vpfe->lock);
+
+ ret = v4l2_fh_open(file);
+ if (ret) {
+ vpfe_err(vpfe, "v4l2_fh_open failed\n");
+ goto unlock;
+ }
+
+ if (!v4l2_fh_is_singular_file(file))
+ goto unlock;
+
+ if (vpfe_initialize_device(vpfe)) {
+ v4l2_fh_release(file);
+ ret = -ENODEV;
+ }
+
+unlock:
+ mutex_unlock(&vpfe->lock);
+ return ret;
+}
+
+/**
+ * vpfe_schedule_next_buffer: set next buffer address for capture
+ * @vpfe : ptr to vpfe device
+ *
+ * This function will get next buffer from the dma queue and
+ * set the buffer address in the vpfe register for capture.
+ * the buffer is marked active
+ *
+ * Assumes caller is holding vpfe->dma_queue_lock already
+ */
+static inline void vpfe_schedule_next_buffer(struct vpfe_device *vpfe)
+{
+ vpfe->next_frm = list_entry(vpfe->dma_queue.next,
+ struct vpfe_cap_buffer, list);
+ list_del(&vpfe->next_frm->list);
+
+ vpfe_set_sdr_addr(&vpfe->ccdc,
+ vb2_dma_contig_plane_dma_addr(&vpfe->next_frm->vb, 0));
+}
+
+static inline void vpfe_schedule_bottom_field(struct vpfe_device *vpfe)
+{
+ unsigned long addr;
+
+ addr = vb2_dma_contig_plane_dma_addr(&vpfe->next_frm->vb, 0) +
+ vpfe->field_off;
+
+ vpfe_set_sdr_addr(&vpfe->ccdc, addr);
+}
+
+/*
+ * vpfe_process_buffer_complete: process a completed buffer
+ * @vpfe : ptr to vpfe device
+ *
+ * This function time stamp the buffer and mark it as DONE. It also
+ * wake up any process waiting on the QUEUE and set the next buffer
+ * as current
+ */
+static inline void vpfe_process_buffer_complete(struct vpfe_device *vpfe)
+{
+ v4l2_get_timestamp(&vpfe->cur_frm->vb.v4l2_buf.timestamp);
+ vpfe->cur_frm->vb.v4l2_buf.field = vpfe->fmt.fmt.pix.field;
+ vpfe->cur_frm->vb.v4l2_buf.sequence = vpfe->sequence++;
+ vb2_buffer_done(&vpfe->cur_frm->vb, VB2_BUF_STATE_DONE);
+ vpfe->cur_frm = vpfe->next_frm;
+}
+
+/*
+ * vpfe_isr : ISR handler for vpfe capture (VINT0)
+ * @irq: irq number
+ * @dev_id: dev_id ptr
+ *
+ * It changes status of the captured buffer, takes next buffer from the queue
+ * and sets its address in VPFE registers
+ */
+static irqreturn_t vpfe_isr(int irq, void *dev)
+{
+ struct vpfe_device *vpfe = (struct vpfe_device *)dev;
+ enum v4l2_field field;
+ int intr_status;
+ int fid;
+
+ intr_status = vpfe_reg_read(&vpfe->ccdc, VPFE_IRQ_STS);
+
+ if (intr_status & VPFE_VDINT0) {
+ field = vpfe->fmt.fmt.pix.field;
+
+ if (field == V4L2_FIELD_NONE) {
+ /* handle progressive frame capture */
+ if (vpfe->cur_frm != vpfe->next_frm)
+ vpfe_process_buffer_complete(vpfe);
+ goto next_intr;
+ }
+
+ /* interlaced or TB capture check which field
+ we are in hardware */
+ fid = vpfe_ccdc_getfid(&vpfe->ccdc);
+
+ /* switch the software maintained field id */
+ vpfe->field ^= 1;
+ if (fid == vpfe->field) {
+ /* we are in-sync here,continue */
+ if (fid == 0) {
+ /*
+ * One frame is just being captured. If the
+ * next frame is available, release the
+ * current frame and move on
+ */
+ if (vpfe->cur_frm != vpfe->next_frm)
+ vpfe_process_buffer_complete(vpfe);
+ /*
+ * based on whether the two fields are stored
+ * interleave or separately in memory,
+ * reconfigure the CCDC memory address
+ */
+ if (field == V4L2_FIELD_SEQ_TB)
+ vpfe_schedule_bottom_field(vpfe);
+
+ goto next_intr;
+ }
+ /*
+ * if one field is just being captured configure
+ * the next frame get the next frame from the empty
+ * queue if no frame is available hold on to the
+ * current buffer
+ */
+ spin_lock(&vpfe->dma_queue_lock);
+ if (!list_empty(&vpfe->dma_queue) &&
+ vpfe->cur_frm == vpfe->next_frm)
+ vpfe_schedule_next_buffer(vpfe);
+ spin_unlock(&vpfe->dma_queue_lock);
+ } else if (fid == 0) {
+ /*
+ * out of sync. Recover from any hardware out-of-sync.
+ * May loose one frame
+ */
+ vpfe->field = fid;
+ }
+ }
+
+next_intr:
+ if (intr_status & VPFE_VDINT1) {
+ spin_lock(&vpfe->dma_queue_lock);
+ if (vpfe->fmt.fmt.pix.field == V4L2_FIELD_NONE &&
+ !list_empty(&vpfe->dma_queue) &&
+ vpfe->cur_frm == vpfe->next_frm)
+ vpfe_schedule_next_buffer(vpfe);
+ spin_unlock(&vpfe->dma_queue_lock);
+ }
+
+ vpfe_clear_intr(&vpfe->ccdc, intr_status);
+
+ return IRQ_HANDLED;
+}
+
+static inline void vpfe_detach_irq(struct vpfe_device *vpfe)
+{
+ unsigned int intr = VPFE_VDINT0;
+ enum ccdc_frmfmt frame_format;
+
+ frame_format = vpfe_ccdc_get_frame_format(&vpfe->ccdc);
+ if (frame_format == CCDC_FRMFMT_PROGRESSIVE)
+ intr |= VPFE_VDINT1;
+
+ vpfe_reg_write(&vpfe->ccdc, intr, VPFE_IRQ_EN_CLR);
+}
+
+static inline void vpfe_attach_irq(struct vpfe_device *vpfe)
+{
+ unsigned int intr = VPFE_VDINT0;
+ enum ccdc_frmfmt frame_format;
+
+ frame_format = vpfe_ccdc_get_frame_format(&vpfe->ccdc);
+ if (frame_format == CCDC_FRMFMT_PROGRESSIVE)
+ intr |= VPFE_VDINT1;
+
+ vpfe_reg_write(&vpfe->ccdc, intr, VPFE_IRQ_EN_SET);
+}
+
+static int vpfe_querycap(struct file *file, void *priv,
+ struct v4l2_capability *cap)
+{
+ struct vpfe_device *vpfe = video_drvdata(file);
+
+ vpfe_dbg(2, vpfe, "vpfe_querycap\n");
+
+ strlcpy(cap->driver, VPFE_MODULE_NAME, sizeof(cap->driver));
+ strlcpy(cap->card, "TI AM437x VPFE", sizeof(cap->card));
+ snprintf(cap->bus_info, sizeof(cap->bus_info),
+ "platform:%s", vpfe->v4l2_dev.name);
+ cap->device_caps = V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_STREAMING |
+ V4L2_CAP_READWRITE;
+ cap->capabilities = cap->device_caps | V4L2_CAP_DEVICE_CAPS;
+
+ return 0;
+}
+
+/* get the format set at output pad of the adjacent subdev */
+static int __vpfe_get_format(struct vpfe_device *vpfe,
+ struct v4l2_format *format, unsigned int *bpp)
+{
+ struct v4l2_mbus_framefmt mbus_fmt;
+ struct vpfe_subdev_info *sdinfo;
+ struct v4l2_subdev_format fmt;
+ int ret;
+
+ sdinfo = vpfe->current_subdev;
+ if (!sdinfo->sd)
+ return -EINVAL;
+
+ fmt.which = V4L2_SUBDEV_FORMAT_ACTIVE;
+ fmt.pad = 0;
+
+ ret = v4l2_subdev_call(sdinfo->sd, pad, get_fmt, NULL, &fmt);
+ if (ret && ret != -ENOIOCTLCMD && ret != -ENODEV)
+ return ret;
+
+ if (!ret) {
+ v4l2_fill_pix_format(&format->fmt.pix, &fmt.format);
+ mbus_to_pix(vpfe, &fmt.format, &format->fmt.pix, bpp);
+ } else {
+ ret = v4l2_device_call_until_err(&vpfe->v4l2_dev,
+ sdinfo->grp_id,
+ video, g_mbus_fmt,
+ &mbus_fmt);
+ if (ret && ret != -ENOIOCTLCMD && ret != -ENODEV)
+ return ret;
+ v4l2_fill_pix_format(&format->fmt.pix, &mbus_fmt);
+ mbus_to_pix(vpfe, &mbus_fmt, &format->fmt.pix, bpp);
+ }
+
+ format->type = vpfe->fmt.type;
+
+ vpfe_dbg(1, vpfe,
+ "%s size %dx%d (%s) bytesperline = %d, size = %d, bpp = %d\n",
+ __func__, format->fmt.pix.width, format->fmt.pix.height,
+ print_fourcc(format->fmt.pix.pixelformat),
+ format->fmt.pix.bytesperline, format->fmt.pix.sizeimage, *bpp);
+
+ return 0;
+}
+
+/* set the format at output pad of the adjacent subdev */
+static int __vpfe_set_format(struct vpfe_device *vpfe,
+ struct v4l2_format *format, unsigned int *bpp)
+{
+ struct v4l2_mbus_framefmt mbus_fmt;
+ struct vpfe_subdev_info *sdinfo;
+ struct v4l2_subdev_format fmt;
+ int ret;
+
+ vpfe_dbg(2, vpfe, "__vpfe_set_format\n");
+
+ sdinfo = vpfe->current_subdev;
+ if (!sdinfo->sd)
+ return -EINVAL;
+
+ fmt.which = V4L2_SUBDEV_FORMAT_ACTIVE;
+ fmt.pad = 0;
+
+ pix_to_mbus(vpfe, &format->fmt.pix, &fmt.format);
+
+ ret = v4l2_subdev_call(sdinfo->sd, pad, set_fmt, NULL, &fmt);
+ if (ret && ret != -ENOIOCTLCMD && ret != -ENODEV)
+ return ret;
+
+ if (!ret) {
+ v4l2_fill_pix_format(&format->fmt.pix, &fmt.format);
+ mbus_to_pix(vpfe, &fmt.format, &format->fmt.pix, bpp);
+ } else {
+ ret = v4l2_device_call_until_err(&vpfe->v4l2_dev,
+ sdinfo->grp_id,
+ video, s_mbus_fmt,
+ &mbus_fmt);
+ if (ret && ret != -ENOIOCTLCMD && ret != -ENODEV)
+ return ret;
+
+ v4l2_fill_pix_format(&format->fmt.pix, &mbus_fmt);
+ mbus_to_pix(vpfe, &mbus_fmt, &format->fmt.pix, bpp);
+ }
+
+ format->type = vpfe->fmt.type;
+
+ vpfe_dbg(1, vpfe,
+ "%s size %dx%d (%s) bytesperline = %d, size = %d, bpp = %d\n",
+ __func__, format->fmt.pix.width, format->fmt.pix.height,
+ print_fourcc(format->fmt.pix.pixelformat),
+ format->fmt.pix.bytesperline, format->fmt.pix.sizeimage, *bpp);
+
+ return 0;
+}
+
+static int vpfe_g_fmt(struct file *file, void *priv,
+ struct v4l2_format *fmt)
+{
+ struct vpfe_device *vpfe = video_drvdata(file);
+
+ vpfe_dbg(2, vpfe, "vpfe_g_fmt\n");
+
+ *fmt = vpfe->fmt;
+
+ return 0;
+}
+
+static int vpfe_enum_fmt(struct file *file, void *priv,
+ struct v4l2_fmtdesc *f)
+{
+ struct vpfe_device *vpfe = video_drvdata(file);
+ struct vpfe_subdev_info *sdinfo;
+ struct vpfe_fmt *fmt = NULL;
+ unsigned int k;
+
+ vpfe_dbg(2, vpfe, "vpfe_enum_format index:%d\n",
+ f->index);
+
+ sdinfo = vpfe->current_subdev;
+ if (!sdinfo->sd)
+ return -EINVAL;
+
+ if (f->index > ARRAY_SIZE(formats))
+ return -EINVAL;
+
+ for (k = 0; k < ARRAY_SIZE(formats); k++) {
+ if (formats[k].index == f->index) {
+ fmt = &formats[k];
+ break;
+ }
+ }
+ if (!fmt)
+ return -EINVAL;
+
+ strncpy(f->description, fmt->name, sizeof(f->description) - 1);
+ f->pixelformat = fmt->fourcc;
+ f->type = vpfe->fmt.type;
+
+ vpfe_dbg(1, vpfe, "vpfe_enum_format: mbus index: %d code: %x pixelformat: %s [%s]\n",
+ f->index, fmt->code, print_fourcc(fmt->fourcc), fmt->name);
+
+ return 0;
+}
+
+static int vpfe_try_fmt(struct file *file, void *priv,
+ struct v4l2_format *fmt)
+{
+ struct vpfe_device *vpfe = video_drvdata(file);
+ unsigned int bpp;
+
+ vpfe_dbg(2, vpfe, "vpfe_try_fmt\n");
+
+ return __vpfe_get_format(vpfe, fmt, &bpp);
+}
+
+static int vpfe_s_fmt(struct file *file, void *priv,
+ struct v4l2_format *fmt)
+{
+ struct vpfe_device *vpfe = video_drvdata(file);
+ struct v4l2_format format;
+ unsigned int bpp;
+ int ret;
+
+ vpfe_dbg(2, vpfe, "vpfe_s_fmt\n");
+
+ /* If streaming is started, return error */
+ if (vb2_is_busy(&vpfe->buffer_queue)) {
+ vpfe_err(vpfe, "%s device busy\n", __func__);
+ return -EBUSY;
+ }
+
+ ret = vpfe_try_fmt(file, priv, fmt);
+ if (ret)
+ return ret;
+
+
+ if (!cmp_v4l2_format(fmt, &format)) {
+ /* Sensor format is different from the requested format
+ * so we need to change it
+ */
+ ret = __vpfe_set_format(vpfe, fmt, &bpp);
+ if (ret)
+ return ret;
+ } else /* Just make sure all of the fields are consistent */
+ *fmt = format;
+
+ /* First detach any IRQ if currently attached */
+ vpfe_detach_irq(vpfe);
+ vpfe->fmt = *fmt;
+ vpfe->bpp = bpp;
+
+ /* Update the crop window based on found values */
+ vpfe->crop.width = fmt->fmt.pix.width;
+ vpfe->crop.height = fmt->fmt.pix.height;
+
+ /* set image capture parameters in the ccdc */
+ return vpfe_config_ccdc_image_format(vpfe);
+}
+
+static int vpfe_enum_size(struct file *file, void *priv,
+ struct v4l2_frmsizeenum *fsize)
+{
+ struct vpfe_device *vpfe = video_drvdata(file);
+ struct v4l2_subdev_frame_size_enum fse;
+ struct vpfe_subdev_info *sdinfo;
+ struct v4l2_mbus_framefmt mbus;
+ struct v4l2_pix_format pix;
+ struct vpfe_fmt *fmt;
+ int ret;
+
+ vpfe_dbg(2, vpfe, "vpfe_enum_size\n");
+
+ /* check for valid format */
+ fmt = find_format_by_pix(fsize->pixel_format);
+ if (!fmt) {
+ vpfe_dbg(3, vpfe, "Invalid pixel code: %x, default used instead\n",
+ fsize->pixel_format);
+ return -EINVAL;
+ }
+
+ memset(fsize->reserved, 0x0, sizeof(fsize->reserved));
+
+ sdinfo = vpfe->current_subdev;
+ if (!sdinfo->sd)
+ return -EINVAL;
+
+ memset(&pix, 0x0, sizeof(pix));
+ /* Construct pix from parameter and use default for the rest */
+ pix.pixelformat = fsize->pixel_format;
+ pix.width = 640;
+ pix.height = 480;
+ pix.colorspace = V4L2_COLORSPACE_SRGB;
+ pix.field = V4L2_FIELD_NONE;
+ pix_to_mbus(vpfe, &pix, &mbus);
+
+ memset(&fse, 0x0, sizeof(fse));
+ fse.index = fsize->index;
+ fse.pad = 0;
+ fse.code = mbus.code;
+ ret = v4l2_subdev_call(sdinfo->sd, pad, enum_frame_size, NULL, &fse);
+ if (ret)
+ return -EINVAL;
+
+ vpfe_dbg(1, vpfe, "vpfe_enum_size: index: %d code: %x W:[%d,%d] H:[%d,%d]\n",
+ fse.index, fse.code, fse.min_width, fse.max_width,
+ fse.min_height, fse.max_height);
+
+ fsize->type = V4L2_FRMSIZE_TYPE_DISCRETE;
+ fsize->discrete.width = fse.max_width;
+ fsize->discrete.height = fse.max_height;
+
+ vpfe_dbg(1, vpfe, "vpfe_enum_size: index: %d pixformat: %s size: %dx%d\n",
+ fsize->index, print_fourcc(fsize->pixel_format),
+ fsize->discrete.width, fsize->discrete.height);
+
+ return 0;
+}
+
+/*
+ * vpfe_get_subdev_input_index - Get subdev index and subdev input index for a
+ * given app input index
+ */
+static int
+vpfe_get_subdev_input_index(struct vpfe_device *vpfe,
+ int *subdev_index,
+ int *subdev_input_index,
+ int app_input_index)
+{
+ struct vpfe_config *cfg = vpfe->cfg;
+ struct vpfe_subdev_info *sdinfo;
+ int i, j = 0;
+
+ for (i = 0; i < ARRAY_SIZE(vpfe->cfg->asd); i++) {
+ sdinfo = &cfg->sub_devs[i];
+ if (app_input_index < (j + 1)) {
+ *subdev_index = i;
+ *subdev_input_index = app_input_index - j;
+ return 0;
+ }
+ j++;
+ }
+ return -EINVAL;
+}
+
+/*
+ * vpfe_get_app_input - Get app input index for a given subdev input index
+ * driver stores the input index of the current sub device and translate it
+ * when application request the current input
+ */
+static int vpfe_get_app_input_index(struct vpfe_device *vpfe,
+ int *app_input_index)
+{
+ struct vpfe_config *cfg = vpfe->cfg;
+ struct vpfe_subdev_info *sdinfo;
+ int i, j = 0;
+
+ for (i = 0; i < ARRAY_SIZE(vpfe->cfg->asd); i++) {
+ sdinfo = &cfg->sub_devs[i];
+ if (!strcmp(sdinfo->name, vpfe->current_subdev->name)) {
+ if (vpfe->current_input >= 1)
+ return -1;
+ *app_input_index = j + vpfe->current_input;
+ return 0;
+ }
+ j++;
+ }
+ return -EINVAL;
+}
+
+static int vpfe_enum_input(struct file *file, void *priv,
+ struct v4l2_input *inp)
+{
+ struct vpfe_device *vpfe = video_drvdata(file);
+ struct vpfe_subdev_info *sdinfo;
+ int subdev, index;
+
+ vpfe_dbg(2, vpfe, "vpfe_enum_input\n");
+
+ if (vpfe_get_subdev_input_index(vpfe, &subdev, &index,
+ inp->index) < 0) {
+ vpfe_dbg(1, vpfe,
+ "input information not found for the subdev\n");
+ return -EINVAL;
+ }
+ sdinfo = &vpfe->cfg->sub_devs[subdev];
+ *inp = sdinfo->inputs[index];
+
+ return 0;
+}
+
+static int vpfe_g_input(struct file *file, void *priv, unsigned int *index)
+{
+ struct vpfe_device *vpfe = video_drvdata(file);
+
+ vpfe_dbg(2, vpfe, "vpfe_g_input\n");
+
+ return vpfe_get_app_input_index(vpfe, index);
+}
+
+/* Assumes caller is holding vpfe_dev->lock */
+static int vpfe_set_input(struct vpfe_device *vpfe, unsigned int index)
+{
+ int subdev_index = 0, inp_index = 0;
+ struct vpfe_subdev_info *sdinfo;
+ struct vpfe_route *route;
+ u32 input, output;
+ int ret;
+
+ vpfe_dbg(2, vpfe, "vpfe_set_input: index: %d\n", index);
+
+ /* If streaming is started, return error */
+ if (vb2_is_busy(&vpfe->buffer_queue)) {
+ vpfe_err(vpfe, "%s device busy\n", __func__);
+ return -EBUSY;
+ }
+ ret = vpfe_get_subdev_input_index(vpfe,
+ &subdev_index,
+ &inp_index,
+ index);
+ if (ret < 0) {
+ vpfe_err(vpfe, "invalid input index: %d\n", index);
+ goto get_out;
+ }
+
+ sdinfo = &vpfe->cfg->sub_devs[subdev_index];
+ sdinfo->sd = vpfe->sd[subdev_index];
+ route = &sdinfo->routes[inp_index];
+ if (route && sdinfo->can_route) {
+ input = route->input;
+ output = route->output;
+ if (sdinfo->sd) {
+ ret = v4l2_subdev_call(sdinfo->sd, video,
+ s_routing, input, output, 0);
+ if (ret) {
+ vpfe_err(vpfe, "s_routing failed\n");
+ ret = -EINVAL;
+ goto get_out;
+ }
+ }
+
+ }
+
+ vpfe->current_subdev = sdinfo;
+ if (sdinfo->sd)
+ vpfe->v4l2_dev.ctrl_handler = sdinfo->sd->ctrl_handler;
+ vpfe->current_input = index;
+ vpfe->std_index = 0;
+
+ /* set the bus/interface parameter for the sub device in ccdc */
+ ret = vpfe_ccdc_set_hw_if_params(&vpfe->ccdc, &sdinfo->vpfe_param);
+ if (ret)
+ return ret;
+
+ /* set the default image parameters in the device */
+ return vpfe_config_image_format(vpfe,
+ vpfe_standards[vpfe->std_index].std_id);
+
+get_out:
+ return ret;
+}
+
+static int vpfe_s_input(struct file *file, void *priv, unsigned int index)
+{
+ struct vpfe_device *vpfe = video_drvdata(file);
+
+ vpfe_dbg(2, vpfe,
+ "vpfe_s_input: index: %d\n", index);
+
+ return vpfe_set_input(vpfe, index);
+}
+
+static int vpfe_querystd(struct file *file, void *priv, v4l2_std_id *std_id)
+{
+ struct vpfe_device *vpfe = video_drvdata(file);
+ struct vpfe_subdev_info *sdinfo;
+
+ vpfe_dbg(2, vpfe, "vpfe_querystd\n");
+
+ sdinfo = vpfe->current_subdev;
+ if (!(sdinfo->inputs[0].capabilities & V4L2_IN_CAP_STD))
+ return -ENODATA;
+
+ /* Call querystd function of decoder device */
+ return v4l2_device_call_until_err(&vpfe->v4l2_dev, sdinfo->grp_id,
+ video, querystd, std_id);
+}
+
+static int vpfe_s_std(struct file *file, void *priv, v4l2_std_id std_id)
+{
+ struct vpfe_device *vpfe = video_drvdata(file);
+ struct vpfe_subdev_info *sdinfo;
+ int ret;
+
+ vpfe_dbg(2, vpfe, "vpfe_s_std\n");
+
+ sdinfo = vpfe->current_subdev;
+ if (!(sdinfo->inputs[0].capabilities & V4L2_IN_CAP_STD))
+ return -ENODATA;
+
+ /* If streaming is started, return error */
+ if (vb2_is_busy(&vpfe->buffer_queue)) {
+ vpfe_err(vpfe, "%s device busy\n", __func__);
+ ret = -EBUSY;
+ return ret;
+ }
+
+ ret = v4l2_device_call_until_err(&vpfe->v4l2_dev, sdinfo->grp_id,
+ video, s_std, std_id);
+ if (ret < 0) {
+ vpfe_err(vpfe, "Failed to set standard\n");
+ return ret;
+ }
+ ret = vpfe_config_image_format(vpfe, std_id);
+
+ return ret;
+}
+
+static int vpfe_g_std(struct file *file, void *priv, v4l2_std_id *std_id)
+{
+ struct vpfe_device *vpfe = video_drvdata(file);
+ struct vpfe_subdev_info *sdinfo;
+
+ vpfe_dbg(2, vpfe, "vpfe_g_std\n");
+
+ sdinfo = vpfe->current_subdev;
+ if (sdinfo->inputs[0].capabilities != V4L2_IN_CAP_STD)
+ return -ENODATA;
+
+ *std_id = vpfe_standards[vpfe->std_index].std_id;
+
+ return 0;
+}
+
+/*
+ * vpfe_calculate_offsets : This function calculates buffers offset
+ * for top and bottom field
+ */
+static void vpfe_calculate_offsets(struct vpfe_device *vpfe)
+{
+ struct v4l2_rect image_win;
+
+ vpfe_dbg(2, vpfe, "vpfe_calculate_offsets\n");
+
+ vpfe_ccdc_get_image_window(&vpfe->ccdc, &image_win);
+ vpfe->field_off = image_win.height * image_win.width;
+}
+
+/*
+ * vpfe_queue_setup - Callback function for buffer setup.
+ * @vq: vb2_queue ptr
+ * @fmt: v4l2 format
+ * @nbuffers: ptr to number of buffers requested by application
+ * @nplanes:: contains number of distinct video planes needed to hold a frame
+ * @sizes[]: contains the size (in bytes) of each plane.
+ * @alloc_ctxs: ptr to allocation context
+ *
+ * This callback function is called when reqbuf() is called to adjust
+ * the buffer count and buffer size
+ */
+static int vpfe_queue_setup(struct vb2_queue *vq,
+ const struct v4l2_format *fmt,
+ unsigned int *nbuffers, unsigned int *nplanes,
+ unsigned int sizes[], void *alloc_ctxs[])
+{
+ struct vpfe_device *vpfe = vb2_get_drv_priv(vq);
+
+ if (fmt && fmt->fmt.pix.sizeimage < vpfe->fmt.fmt.pix.sizeimage)
+ return -EINVAL;
+
+ if (vq->num_buffers + *nbuffers < 3)
+ *nbuffers = 3 - vq->num_buffers;
+
+ *nplanes = 1;
+ sizes[0] = fmt ? fmt->fmt.pix.sizeimage : vpfe->fmt.fmt.pix.sizeimage;
+ alloc_ctxs[0] = vpfe->alloc_ctx;
+
+ vpfe_dbg(1, vpfe,
+ "nbuffers=%d, size=%u\n", *nbuffers, sizes[0]);
+
+ /* Calculate field offset */
+ vpfe_calculate_offsets(vpfe);
+
+ return 0;
+}
+
+/*
+ * vpfe_buffer_prepare : callback function for buffer prepare
+ * @vb: ptr to vb2_buffer
+ *
+ * This is the callback function for buffer prepare when vb2_qbuf()
+ * function is called. The buffer is prepared and user space virtual address
+ * or user address is converted into physical address
+ */
+static int vpfe_buffer_prepare(struct vb2_buffer *vb)
+{
+ struct vpfe_device *vpfe = vb2_get_drv_priv(vb->vb2_queue);
+
+ vb2_set_plane_payload(vb, 0, vpfe->fmt.fmt.pix.sizeimage);
+
+ if (vb2_get_plane_payload(vb, 0) > vb2_plane_size(vb, 0))
+ return -EINVAL;
+
+ vb->v4l2_buf.field = vpfe->fmt.fmt.pix.field;
+
+ return 0;
+}
+
+/*
+ * vpfe_buffer_queue : Callback function to add buffer to DMA queue
+ * @vb: ptr to vb2_buffer
+ */
+static void vpfe_buffer_queue(struct vb2_buffer *vb)
+{
+ struct vpfe_device *vpfe = vb2_get_drv_priv(vb->vb2_queue);
+ struct vpfe_cap_buffer *buf = to_vpfe_buffer(vb);
+ unsigned long flags = 0;
+
+ /* add the buffer to the DMA queue */
+ spin_lock_irqsave(&vpfe->dma_queue_lock, flags);
+ list_add_tail(&buf->list, &vpfe->dma_queue);
+ spin_unlock_irqrestore(&vpfe->dma_queue_lock, flags);
+}
+
+/*
+ * vpfe_start_streaming : Starts the DMA engine for streaming
+ * @vb: ptr to vb2_buffer
+ * @count: number of buffers
+ */
+static int vpfe_start_streaming(struct vb2_queue *vq, unsigned int count)
+{
+ struct vpfe_device *vpfe = vb2_get_drv_priv(vq);
+ struct vpfe_cap_buffer *buf, *tmp;
+ struct vpfe_subdev_info *sdinfo;
+ unsigned long flags;
+ unsigned long addr;
+ int ret;
+
+ spin_lock_irqsave(&vpfe->dma_queue_lock, flags);
+
+ vpfe->field = 0;
+ vpfe->sequence = 0;
+
+ sdinfo = vpfe->current_subdev;
+
+ vpfe_attach_irq(vpfe);
+
+ if (vpfe->ccdc.ccdc_cfg.if_type == VPFE_RAW_BAYER)
+ vpfe_ccdc_config_raw(&vpfe->ccdc);
+ else
+ vpfe_ccdc_config_ycbcr(&vpfe->ccdc);
+
+ /* Get the next frame from the buffer queue */
+ vpfe->next_frm = list_entry(vpfe->dma_queue.next,
+ struct vpfe_cap_buffer, list);
+ vpfe->cur_frm = vpfe->next_frm;
+ /* Remove buffer from the buffer queue */
+ list_del(&vpfe->cur_frm->list);
+ spin_unlock_irqrestore(&vpfe->dma_queue_lock, flags);
+
+ addr = vb2_dma_contig_plane_dma_addr(&vpfe->cur_frm->vb, 0);
+
+ vpfe_set_sdr_addr(&vpfe->ccdc, (unsigned long)(addr));
+
+ vpfe_pcr_enable(&vpfe->ccdc, 1);
+
+ ret = v4l2_subdev_call(sdinfo->sd, video, s_stream, 1);
+ if (ret < 0) {
+ vpfe_err(vpfe, "Error in attaching interrupt handle\n");
+ goto err;
+ }
+
+ return 0;
+
+err:
+ list_for_each_entry_safe(buf, tmp, &vpfe->dma_queue, list) {
+ list_del(&buf->list);
+ vb2_buffer_done(&buf->vb, VB2_BUF_STATE_QUEUED);
+ }
+ spin_unlock_irqrestore(&vpfe->dma_queue_lock, flags);
+
+ return ret;
+}
+
+/*
+ * vpfe_stop_streaming : Stop the DMA engine
+ * @vq: ptr to vb2_queue
+ *
+ * This callback stops the DMA engine and any remaining buffers
+ * in the DMA queue are released.
+ */
+static void vpfe_stop_streaming(struct vb2_queue *vq)
+{
+ struct vpfe_device *vpfe = vb2_get_drv_priv(vq);
+ struct vpfe_subdev_info *sdinfo;
+ unsigned long flags;
+ int ret;
+
+ vpfe_pcr_enable(&vpfe->ccdc, 0);
+
+ vpfe_detach_irq(vpfe);
+
+ sdinfo = vpfe->current_subdev;
+ ret = v4l2_subdev_call(sdinfo->sd, video, s_stream, 0);
+ if (ret && ret != -ENOIOCTLCMD && ret != -ENODEV)
+ vpfe_dbg(1, vpfe, "stream off failed in subdev\n");
+
+ /* release all active buffers */
+ spin_lock_irqsave(&vpfe->dma_queue_lock, flags);
+ if (vpfe->cur_frm == vpfe->next_frm) {
+ vb2_buffer_done(&vpfe->cur_frm->vb, VB2_BUF_STATE_ERROR);
+ } else {
+ if (vpfe->cur_frm != NULL)
+ vb2_buffer_done(&vpfe->cur_frm->vb,
+ VB2_BUF_STATE_ERROR);
+ if (vpfe->next_frm != NULL)
+ vb2_buffer_done(&vpfe->next_frm->vb,
+ VB2_BUF_STATE_ERROR);
+ }
+
+ while (!list_empty(&vpfe->dma_queue)) {
+ vpfe->next_frm = list_entry(vpfe->dma_queue.next,
+ struct vpfe_cap_buffer, list);
+ list_del(&vpfe->next_frm->list);
+ vb2_buffer_done(&vpfe->next_frm->vb, VB2_BUF_STATE_ERROR);
+ }
+ spin_unlock_irqrestore(&vpfe->dma_queue_lock, flags);
+}
+
+static int vpfe_cropcap(struct file *file, void *priv,
+ struct v4l2_cropcap *crop)
+{
+ struct vpfe_device *vpfe = video_drvdata(file);
+
+ vpfe_dbg(2, vpfe, "vpfe_cropcap\n");
+
+ if (vpfe->std_index >= ARRAY_SIZE(vpfe_standards))
+ return -EINVAL;
+
+ memset(crop, 0, sizeof(struct v4l2_cropcap));
+
+ crop->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
+ crop->defrect.width = vpfe_standards[vpfe->std_index].width;
+ crop->bounds.width = crop->defrect.width;
+ crop->defrect.height = vpfe_standards[vpfe->std_index].height;
+ crop->bounds.height = crop->defrect.height;
+ crop->pixelaspect = vpfe_standards[vpfe->std_index].pixelaspect;
+
+ return 0;
+}
+
+static int
+vpfe_g_selection(struct file *file, void *fh, struct v4l2_selection *s)
+{
+ struct vpfe_device *vpfe = video_drvdata(file);
+
+ switch (s->target) {
+ case V4L2_SEL_TGT_CROP_BOUNDS:
+ case V4L2_SEL_TGT_CROP_DEFAULT:
+ s->r.left = s->r.top = 0;
+ s->r.width = vpfe->crop.width;
+ s->r.height = vpfe->crop.height;
+ break;
+
+ case V4L2_SEL_TGT_CROP:
+ s->r = vpfe->crop;
+ break;
+
+ default:
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static int enclosed_rectangle(struct v4l2_rect *a, struct v4l2_rect *b)
+{
+ if (a->left < b->left || a->top < b->top)
+ return 0;
+
+ if (a->left + a->width > b->left + b->width)
+ return 0;
+
+ if (a->top + a->height > b->top + b->height)
+ return 0;
+
+ return 1;
+}
+
+static int
+vpfe_s_selection(struct file *file, void *fh, struct v4l2_selection *s)
+{
+ struct vpfe_device *vpfe = video_drvdata(file);
+ struct v4l2_rect cr = vpfe->crop;
+ struct v4l2_rect r = s->r;
+
+ /* If streaming is started, return error */
+ if (vb2_is_busy(&vpfe->buffer_queue)) {
+ vpfe_err(vpfe, "%s device busy\n", __func__);
+ return -EBUSY;
+ }
+
+ if (s->type != V4L2_BUF_TYPE_VIDEO_CAPTURE ||
+ s->target != V4L2_SEL_TGT_CROP)
+ return -EINVAL;
+
+ v4l_bound_align_image(&r.width, 0, cr.width, 0,
+ &r.height, 0, cr.height, 0, 0);
+
+ r.left = clamp_t(unsigned int, r.left, 0, cr.width - r.width);
+ r.top = clamp_t(unsigned int, r.top, 0, cr.height - r.height);
+
+ if (s->flags & V4L2_SEL_FLAG_LE && !enclosed_rectangle(&r, &s->r))
+ return -ERANGE;
+
+ if (s->flags & V4L2_SEL_FLAG_GE && !enclosed_rectangle(&s->r, &r))
+ return -ERANGE;
+
+ s->r = vpfe->crop = r;
+
+ vpfe_ccdc_set_image_window(&vpfe->ccdc, &r, vpfe->bpp);
+ vpfe->fmt.fmt.pix.width = r.width;
+ vpfe->fmt.fmt.pix.height = r.height;
+ vpfe->fmt.fmt.pix.bytesperline = vpfe_ccdc_get_line_length(&vpfe->ccdc);
+ vpfe->fmt.fmt.pix.sizeimage = vpfe->fmt.fmt.pix.bytesperline *
+ vpfe->fmt.fmt.pix.height;
+
+ vpfe_dbg(1, vpfe, "cropped (%d,%d)/%dx%d of %dx%d\n",
+ r.left, r.top, r.width, r.height, cr.width, cr.height);
+
+ return 0;
+}
+
+static long vpfe_ioctl_default(struct file *file, void *priv,
+ bool valid_prio, unsigned int cmd, void *param)
+{
+ struct vpfe_device *vpfe = video_drvdata(file);
+ int ret;
+
+ vpfe_dbg(2, vpfe, "vpfe_ioctl_default\n");
+
+ if (!valid_prio) {
+ vpfe_err(vpfe, "%s device busy\n", __func__);
+ return -EBUSY;
+ }
+
+ /* If streaming is started, return error */
+ if (vb2_is_busy(&vpfe->buffer_queue)) {
+ vpfe_err(vpfe, "%s device busy\n", __func__);
+ return -EBUSY;
+ }
+
+ switch (cmd) {
+ case VIDIOC_AM437X_CCDC_CFG:
+ ret = vpfe_ccdc_set_params(&vpfe->ccdc, param);
+ if (ret) {
+ vpfe_dbg(2, vpfe,
+ "Error setting parameters in CCDC\n");
+ return ret;
+ }
+ ret = vpfe_get_ccdc_image_format(vpfe,
+ &vpfe->fmt);
+ if (ret < 0) {
+ vpfe_dbg(2, vpfe,
+ "Invalid image format at CCDC\n");
+ return ret;
+ }
+ break;
+
+ default:
+ ret = -ENOTTY;
+ break;
+ }
+
+ return ret;
+}
+
+static const struct vb2_ops vpfe_video_qops = {
+ .wait_prepare = vb2_ops_wait_prepare,
+ .wait_finish = vb2_ops_wait_finish,
+ .queue_setup = vpfe_queue_setup,
+ .buf_prepare = vpfe_buffer_prepare,
+ .buf_queue = vpfe_buffer_queue,
+ .start_streaming = vpfe_start_streaming,
+ .stop_streaming = vpfe_stop_streaming,
+};
+
+/* vpfe capture driver file operations */
+static const struct v4l2_file_operations vpfe_fops = {
+ .owner = THIS_MODULE,
+ .open = vpfe_open,
+ .release = vpfe_release,
+ .read = vb2_fop_read,
+ .poll = vb2_fop_poll,
+ .unlocked_ioctl = video_ioctl2,
+ .mmap = vb2_fop_mmap,
+};
+
+/* vpfe capture ioctl operations */
+static const struct v4l2_ioctl_ops vpfe_ioctl_ops = {
+ .vidioc_querycap = vpfe_querycap,
+ .vidioc_enum_fmt_vid_cap = vpfe_enum_fmt,
+ .vidioc_g_fmt_vid_cap = vpfe_g_fmt,
+ .vidioc_s_fmt_vid_cap = vpfe_s_fmt,
+ .vidioc_try_fmt_vid_cap = vpfe_try_fmt,
+
+ .vidioc_enum_framesizes = vpfe_enum_size,
+
+ .vidioc_enum_input = vpfe_enum_input,
+ .vidioc_g_input = vpfe_g_input,
+ .vidioc_s_input = vpfe_s_input,
+
+ .vidioc_querystd = vpfe_querystd,
+ .vidioc_s_std = vpfe_s_std,
+ .vidioc_g_std = vpfe_g_std,
+
+ .vidioc_reqbufs = vb2_ioctl_reqbufs,
+ .vidioc_create_bufs = vb2_ioctl_create_bufs,
+ .vidioc_prepare_buf = vb2_ioctl_prepare_buf,
+ .vidioc_querybuf = vb2_ioctl_querybuf,
+ .vidioc_qbuf = vb2_ioctl_qbuf,
+ .vidioc_dqbuf = vb2_ioctl_dqbuf,
+ .vidioc_expbuf = vb2_ioctl_expbuf,
+ .vidioc_streamon = vb2_ioctl_streamon,
+ .vidioc_streamoff = vb2_ioctl_streamoff,
+
+ .vidioc_log_status = v4l2_ctrl_log_status,
+ .vidioc_subscribe_event = v4l2_ctrl_subscribe_event,
+ .vidioc_unsubscribe_event = v4l2_event_unsubscribe,
+
+ .vidioc_cropcap = vpfe_cropcap,
+ .vidioc_g_selection = vpfe_g_selection,
+ .vidioc_s_selection = vpfe_s_selection,
+
+ .vidioc_default = vpfe_ioctl_default,
+};
+
+static int
+vpfe_async_bound(struct v4l2_async_notifier *notifier,
+ struct v4l2_subdev *subdev,
+ struct v4l2_async_subdev *asd)
+{
+ struct vpfe_device *vpfe = container_of(notifier->v4l2_dev,
+ struct vpfe_device, v4l2_dev);
+ struct v4l2_subdev_mbus_code_enum mbus_code;
+ struct vpfe_subdev_info *sdinfo;
+ bool found = false;
+ int i, j;
+
+ vpfe_dbg(1, vpfe, "vpfe_async_bound\n");
+
+ for (i = 0; i < ARRAY_SIZE(vpfe->cfg->asd); i++) {
+ sdinfo = &vpfe->cfg->sub_devs[i];
+
+ if (!strcmp(sdinfo->name, subdev->name)) {
+ vpfe->sd[i] = subdev;
+ vpfe_info(vpfe,
+ "v4l2 sub device %s registered\n",
+ subdev->name);
+ vpfe->sd[i]->grp_id =
+ sdinfo->grp_id;
+ /* update tvnorms from the sub devices */
+ for (j = 0; j < 1; j++)
+ vpfe->video_dev->tvnorms |=
+ sdinfo->inputs[j].std;
+
+ found = true;
+ break;
+ }
+ }
+
+ if (!found) {
+ vpfe_info(vpfe, "sub device (%s) not matched\n", subdev->name);
+ return -EINVAL;
+ }
+
+ /* setup the supported formats & indexes */
+ for (j = 0, i = 0; ; ++j) {
+ struct vpfe_fmt *fmt;
+ int ret;
+
+ memset(&mbus_code, 0, sizeof(mbus_code));
+ mbus_code.index = j;
+ ret = v4l2_subdev_call(subdev, pad, enum_mbus_code,
+ NULL, &mbus_code);
+ if (ret)
+ break;
+
+ fmt = find_format_by_code(mbus_code.code);
+ if (!fmt)
+ continue;
+
+ fmt->supported = true;
+ fmt->index = i++;
+ }
+
+ return 0;
+}
+
+static int vpfe_probe_complete(struct vpfe_device *vpfe)
+{
+ struct video_device *vdev;
+ struct vb2_queue *q;
+ int err;
+
+ spin_lock_init(&vpfe->dma_queue_lock);
+ mutex_init(&vpfe->lock);
+
+ vpfe->fmt.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
+
+ /* set first sub device as current one */
+ vpfe->current_subdev = &vpfe->cfg->sub_devs[0];
+ vpfe->v4l2_dev.ctrl_handler = vpfe->sd[0]->ctrl_handler;
+
+ err = vpfe_set_input(vpfe, 0);
+ if (err)
+ goto probe_out;
+
+ /* Initialize videobuf2 queue as per the buffer type */
+ vpfe->alloc_ctx = vb2_dma_contig_init_ctx(vpfe->pdev);
+ if (IS_ERR(vpfe->alloc_ctx)) {
+ vpfe_err(vpfe, "Failed to get the context\n");
+ err = PTR_ERR(vpfe->alloc_ctx);
+ goto probe_out;
+ }
+
+ q = &vpfe->buffer_queue;
+ q->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
+ q->io_modes = VB2_MMAP | VB2_DMABUF | VB2_READ;
+ q->drv_priv = vpfe;
+ q->ops = &vpfe_video_qops;
+ q->mem_ops = &vb2_dma_contig_memops;
+ q->buf_struct_size = sizeof(struct vpfe_cap_buffer);
+ q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
+ q->lock = &vpfe->lock;
+ q->min_buffers_needed = 1;
+
+ err = vb2_queue_init(q);
+ if (err) {
+ vpfe_err(vpfe, "vb2_queue_init() failed\n");
+ vb2_dma_contig_cleanup_ctx(vpfe->alloc_ctx);
+ goto probe_out;
+ }
+
+ INIT_LIST_HEAD(&vpfe->dma_queue);
+
+ vdev = vpfe->video_dev;
+ strlcpy(vdev->name, VPFE_MODULE_NAME, sizeof(vdev->name));
+ vdev->release = video_device_release;
+ vdev->fops = &vpfe_fops;
+ vdev->ioctl_ops = &vpfe_ioctl_ops;
+ vdev->v4l2_dev = &vpfe->v4l2_dev;
+ vdev->vfl_dir = VFL_DIR_RX;
+ vdev->queue = q;
+ vdev->lock = &vpfe->lock;
+ video_set_drvdata(vdev, vpfe);
+ err = video_register_device(vpfe->video_dev, VFL_TYPE_GRABBER, -1);
+ if (err) {
+ vpfe_err(vpfe,
+ "Unable to register video device.\n");
+ goto probe_out;
+ }
+
+ return 0;
+
+probe_out:
+ v4l2_device_unregister(&vpfe->v4l2_dev);
+ return err;
+}
+
+static int vpfe_async_complete(struct v4l2_async_notifier *notifier)
+{
+ struct vpfe_device *vpfe = container_of(notifier->v4l2_dev,
+ struct vpfe_device, v4l2_dev);
+
+ return vpfe_probe_complete(vpfe);
+}
+
+static struct vpfe_config *
+vpfe_get_pdata(struct platform_device *pdev)
+{
+ struct device_node *endpoint = NULL, *rem = NULL;
+ struct v4l2_of_endpoint bus_cfg;
+ struct vpfe_subdev_info *sdinfo;
+ struct vpfe_config *pdata;
+ unsigned int flags;
+ unsigned int i;
+ int err;
+
+ dev_dbg(&pdev->dev, "vpfe_get_pdata\n");
+
+ if (!IS_ENABLED(CONFIG_OF) || !pdev->dev.of_node)
+ return pdev->dev.platform_data;
+
+ pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL);
+ if (!pdata)
+ return NULL;
+
+ for (i = 0; ; i++) {
+ endpoint = of_graph_get_next_endpoint(pdev->dev.of_node,
+ endpoint);
+ if (!endpoint)
+ break;
+
+ sdinfo = &pdata->sub_devs[i];
+ sdinfo->grp_id = 0;
+
+ /* we only support camera */
+ sdinfo->inputs[0].index = i;
+ strcpy(sdinfo->inputs[0].name, "Camera");
+ sdinfo->inputs[0].type = V4L2_INPUT_TYPE_CAMERA;
+ sdinfo->inputs[0].std = V4L2_STD_ALL;
+ sdinfo->inputs[0].capabilities = V4L2_IN_CAP_STD;
+
+ sdinfo->can_route = 0;
+ sdinfo->routes = NULL;
+
+ of_property_read_u32(endpoint, "ti,am437x-vpfe-interface",
+ &sdinfo->vpfe_param.if_type);
+ if (sdinfo->vpfe_param.if_type < 0 ||
+ sdinfo->vpfe_param.if_type > 4) {
+ sdinfo->vpfe_param.if_type = VPFE_RAW_BAYER;
+ }
+
+ err = v4l2_of_parse_endpoint(endpoint, &bus_cfg);
+ if (err) {
+ dev_err(&pdev->dev, "Could not parse the endpoint\n");
+ goto done;
+ }
+
+ sdinfo->vpfe_param.bus_width = bus_cfg.bus.parallel.bus_width;
+
+ if (sdinfo->vpfe_param.bus_width < 8 ||
+ sdinfo->vpfe_param.bus_width > 16) {
+ dev_err(&pdev->dev, "Invalid bus width.\n");
+ goto done;
+ }
+
+ flags = bus_cfg.bus.parallel.flags;
+
+ if (flags & V4L2_MBUS_HSYNC_ACTIVE_HIGH)
+ sdinfo->vpfe_param.hdpol = 1;
+
+ if (flags & V4L2_MBUS_VSYNC_ACTIVE_HIGH)
+ sdinfo->vpfe_param.vdpol = 1;
+
+ rem = of_graph_get_remote_port_parent(endpoint);
+ if (!rem) {
+ dev_err(&pdev->dev, "Remote device at %s not found\n",
+ endpoint->full_name);
+ goto done;
+ }
+
+ strncpy(sdinfo->name, rem->name, sizeof(sdinfo->name));
+
+ pdata->asd[i] = devm_kzalloc(&pdev->dev,
+ sizeof(struct v4l2_async_subdev),
+ GFP_KERNEL);
+ pdata->asd[i]->match_type = V4L2_ASYNC_MATCH_OF;
+ pdata->asd[i]->match.of.node = rem;
+ of_node_put(endpoint);
+ of_node_put(rem);
+ }
+
+ of_node_put(endpoint);
+ return pdata;
+
+done:
+ of_node_put(endpoint);
+ of_node_put(rem);
+ return NULL;
+}
+
+/*
+ * vpfe_probe : This function creates device entries by register
+ * itself to the V4L2 driver and initializes fields of each
+ * device objects
+ */
+static int vpfe_probe(struct platform_device *pdev)
+{
+ struct vpfe_config *vpfe_cfg = vpfe_get_pdata(pdev);
+ struct vpfe_device *vpfe;
+ struct vpfe_ccdc *ccdc;
+ struct resource *res;
+ int ret;
+
+ if (!vpfe_cfg) {
+ dev_err(&pdev->dev, "No platform data\n");
+ return -EINVAL;
+ }
+
+ vpfe = devm_kzalloc(&pdev->dev, sizeof(*vpfe), GFP_KERNEL);
+ if (!vpfe)
+ return -ENOMEM;
+
+ vpfe->pdev = &pdev->dev;
+ vpfe->cfg = vpfe_cfg;
+ ccdc = &vpfe->ccdc;
+
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ ccdc->ccdc_cfg.base_addr = devm_ioremap_resource(&pdev->dev, res);
+ if (IS_ERR(ccdc->ccdc_cfg.base_addr))
+ return PTR_ERR(ccdc->ccdc_cfg.base_addr);
+
+ vpfe->irq = platform_get_irq(pdev, 0);
+ if (vpfe->irq <= 0) {
+ dev_err(&pdev->dev, "No IRQ resource\n");
+ return -ENODEV;
+ }
+
+ ret = devm_request_irq(vpfe->pdev, vpfe->irq, vpfe_isr, 0,
+ "vpfe_capture0", vpfe);
+ if (ret) {
+ dev_err(&pdev->dev, "Unable to request interrupt\n");
+ return -EINVAL;
+ }
+
+ vpfe->video_dev = video_device_alloc();
+ if (!vpfe->video_dev) {
+ dev_err(&pdev->dev, "Unable to allocate video device\n");
+ return -ENOMEM;
+ }
+
+ ret = v4l2_device_register(&pdev->dev, &vpfe->v4l2_dev);
+ if (ret) {
+ vpfe_err(vpfe,
+ "Unable to register v4l2 device.\n");
+ goto probe_out_video_release;
+ }
+
+ /* set the driver data in platform device */
+ platform_set_drvdata(pdev, vpfe);
+ /* Enabling module functional clock */
+ pm_runtime_enable(&pdev->dev);
+
+ /* for now just enable it here instead of waiting for the open */
+ pm_runtime_get_sync(&pdev->dev);
+
+ vpfe_ccdc_config_defaults(ccdc);
+
+ pm_runtime_put_sync(&pdev->dev);
+
+ vpfe->sd = devm_kzalloc(&pdev->dev, sizeof(struct v4l2_subdev *) *
+ ARRAY_SIZE(vpfe->cfg->asd), GFP_KERNEL);
+ if (!vpfe->sd) {
+ ret = -ENOMEM;
+ goto probe_out_v4l2_unregister;
+ }
+
+ vpfe->notifier.subdevs = vpfe->cfg->asd;
+ vpfe->notifier.num_subdevs = ARRAY_SIZE(vpfe->cfg->asd);
+ vpfe->notifier.bound = vpfe_async_bound;
+ vpfe->notifier.complete = vpfe_async_complete;
+ ret = v4l2_async_notifier_register(&vpfe->v4l2_dev,
+ &vpfe->notifier);
+ if (ret) {
+ vpfe_err(vpfe, "Error registering async notifier\n");
+ ret = -EINVAL;
+ goto probe_out_v4l2_unregister;
+ }
+
+ return 0;
+
+probe_out_v4l2_unregister:
+ v4l2_device_unregister(&vpfe->v4l2_dev);
+probe_out_video_release:
+ if (!video_is_registered(vpfe->video_dev))
+ video_device_release(vpfe->video_dev);
+ return ret;
+}
+
+/*
+ * vpfe_remove : It un-register device from V4L2 driver
+ */
+static int vpfe_remove(struct platform_device *pdev)
+{
+ struct vpfe_device *vpfe = platform_get_drvdata(pdev);
+
+ vpfe_dbg(2, vpfe, "vpfe_remove\n");
+
+ pm_runtime_disable(&pdev->dev);
+
+ v4l2_async_notifier_unregister(&vpfe->notifier);
+ v4l2_device_unregister(&vpfe->v4l2_dev);
+ video_unregister_device(vpfe->video_dev);
+
+ return 0;
+}
+
+#ifdef CONFIG_PM_SLEEP
+
+static void vpfe_save_context(struct vpfe_ccdc *ccdc)
+{
+ ccdc->ccdc_ctx[VPFE_PCR >> 2] = vpfe_reg_read(ccdc, VPFE_PCR);
+ ccdc->ccdc_ctx[VPFE_SYNMODE >> 2] = vpfe_reg_read(ccdc, VPFE_SYNMODE);
+ ccdc->ccdc_ctx[VPFE_SDOFST >> 2] = vpfe_reg_read(ccdc, VPFE_SDOFST);
+ ccdc->ccdc_ctx[VPFE_SDR_ADDR >> 2] = vpfe_reg_read(ccdc, VPFE_SDR_ADDR);
+ ccdc->ccdc_ctx[VPFE_CLAMP >> 2] = vpfe_reg_read(ccdc, VPFE_CLAMP);
+ ccdc->ccdc_ctx[VPFE_DCSUB >> 2] = vpfe_reg_read(ccdc, VPFE_DCSUB);
+ ccdc->ccdc_ctx[VPFE_COLPTN >> 2] = vpfe_reg_read(ccdc, VPFE_COLPTN);
+ ccdc->ccdc_ctx[VPFE_BLKCMP >> 2] = vpfe_reg_read(ccdc, VPFE_BLKCMP);
+ ccdc->ccdc_ctx[VPFE_VDINT >> 2] = vpfe_reg_read(ccdc, VPFE_VDINT);
+ ccdc->ccdc_ctx[VPFE_ALAW >> 2] = vpfe_reg_read(ccdc, VPFE_ALAW);
+ ccdc->ccdc_ctx[VPFE_REC656IF >> 2] = vpfe_reg_read(ccdc, VPFE_REC656IF);
+ ccdc->ccdc_ctx[VPFE_CCDCFG >> 2] = vpfe_reg_read(ccdc, VPFE_CCDCFG);
+ ccdc->ccdc_ctx[VPFE_CULLING >> 2] = vpfe_reg_read(ccdc, VPFE_CULLING);
+ ccdc->ccdc_ctx[VPFE_HD_VD_WID >> 2] = vpfe_reg_read(ccdc,
+ VPFE_HD_VD_WID);
+ ccdc->ccdc_ctx[VPFE_PIX_LINES >> 2] = vpfe_reg_read(ccdc,
+ VPFE_PIX_LINES);
+ ccdc->ccdc_ctx[VPFE_HORZ_INFO >> 2] = vpfe_reg_read(ccdc,
+ VPFE_HORZ_INFO);
+ ccdc->ccdc_ctx[VPFE_VERT_START >> 2] = vpfe_reg_read(ccdc,
+ VPFE_VERT_START);
+ ccdc->ccdc_ctx[VPFE_VERT_LINES >> 2] = vpfe_reg_read(ccdc,
+ VPFE_VERT_LINES);
+ ccdc->ccdc_ctx[VPFE_HSIZE_OFF >> 2] = vpfe_reg_read(ccdc,
+ VPFE_HSIZE_OFF);
+}
+
+static int vpfe_suspend(struct device *dev)
+{
+ struct platform_device *pdev = to_platform_device(dev);
+ struct vpfe_device *vpfe = platform_get_drvdata(pdev);
+ struct vpfe_ccdc *ccdc = &vpfe->ccdc;
+
+ /* if streaming has not started we don't care */
+ if (!vb2_start_streaming_called(&vpfe->buffer_queue))
+ return 0;
+
+ pm_runtime_get_sync(dev);
+ vpfe_config_enable(ccdc, 1);
+
+ /* Save VPFE context */
+ vpfe_save_context(ccdc);
+
+ /* Disable CCDC */
+ vpfe_pcr_enable(ccdc, 0);
+ vpfe_config_enable(ccdc, 0);
+
+ /* Disable both master and slave clock */
+ pm_runtime_put_sync(dev);
+
+ /* Select sleep pin state */
+ pinctrl_pm_select_sleep_state(dev);
+
+ return 0;
+}
+
+static void vpfe_restore_context(struct vpfe_ccdc *ccdc)
+{
+ vpfe_reg_write(ccdc, ccdc->ccdc_ctx[VPFE_SYNMODE >> 2], VPFE_SYNMODE);
+ vpfe_reg_write(ccdc, ccdc->ccdc_ctx[VPFE_CULLING >> 2], VPFE_CULLING);
+ vpfe_reg_write(ccdc, ccdc->ccdc_ctx[VPFE_SDOFST >> 2], VPFE_SDOFST);
+ vpfe_reg_write(ccdc, ccdc->ccdc_ctx[VPFE_SDR_ADDR >> 2], VPFE_SDR_ADDR);
+ vpfe_reg_write(ccdc, ccdc->ccdc_ctx[VPFE_CLAMP >> 2], VPFE_CLAMP);
+ vpfe_reg_write(ccdc, ccdc->ccdc_ctx[VPFE_DCSUB >> 2], VPFE_DCSUB);
+ vpfe_reg_write(ccdc, ccdc->ccdc_ctx[VPFE_COLPTN >> 2], VPFE_COLPTN);
+ vpfe_reg_write(ccdc, ccdc->ccdc_ctx[VPFE_BLKCMP >> 2], VPFE_BLKCMP);
+ vpfe_reg_write(ccdc, ccdc->ccdc_ctx[VPFE_VDINT >> 2], VPFE_VDINT);
+ vpfe_reg_write(ccdc, ccdc->ccdc_ctx[VPFE_ALAW >> 2], VPFE_ALAW);
+ vpfe_reg_write(ccdc, ccdc->ccdc_ctx[VPFE_REC656IF >> 2], VPFE_REC656IF);
+ vpfe_reg_write(ccdc, ccdc->ccdc_ctx[VPFE_CCDCFG >> 2], VPFE_CCDCFG);
+ vpfe_reg_write(ccdc, ccdc->ccdc_ctx[VPFE_PCR >> 2], VPFE_PCR);
+ vpfe_reg_write(ccdc, ccdc->ccdc_ctx[VPFE_HD_VD_WID >> 2],
+ VPFE_HD_VD_WID);
+ vpfe_reg_write(ccdc, ccdc->ccdc_ctx[VPFE_PIX_LINES >> 2],
+ VPFE_PIX_LINES);
+ vpfe_reg_write(ccdc, ccdc->ccdc_ctx[VPFE_HORZ_INFO >> 2],
+ VPFE_HORZ_INFO);
+ vpfe_reg_write(ccdc, ccdc->ccdc_ctx[VPFE_VERT_START >> 2],
+ VPFE_VERT_START);
+ vpfe_reg_write(ccdc, ccdc->ccdc_ctx[VPFE_VERT_LINES >> 2],
+ VPFE_VERT_LINES);
+ vpfe_reg_write(ccdc, ccdc->ccdc_ctx[VPFE_HSIZE_OFF >> 2],
+ VPFE_HSIZE_OFF);
+}
+
+static int vpfe_resume(struct device *dev)
+{
+ struct platform_device *pdev = to_platform_device(dev);
+ struct vpfe_device *vpfe = platform_get_drvdata(pdev);
+ struct vpfe_ccdc *ccdc = &vpfe->ccdc;
+
+ /* if streaming has not started we don't care */
+ if (!vb2_start_streaming_called(&vpfe->buffer_queue))
+ return 0;
+
+ /* Enable both master and slave clock */
+ pm_runtime_get_sync(dev);
+ vpfe_config_enable(ccdc, 1);
+
+ /* Restore VPFE context */
+ vpfe_restore_context(ccdc);
+
+ vpfe_config_enable(ccdc, 0);
+ pm_runtime_put_sync(dev);
+
+ /* Select default pin state */
+ pinctrl_pm_select_default_state(dev);
+
+ return 0;
+}
+
+#endif
+
+static SIMPLE_DEV_PM_OPS(vpfe_pm_ops, vpfe_suspend, vpfe_resume);
+
+static const struct of_device_id vpfe_of_match[] = {
+ { .compatible = "ti,am437x-vpfe", },
+ { /* sentinel */ },
+};
+MODULE_DEVICE_TABLE(of, vpfe_of_match);
+
+static struct platform_driver vpfe_driver = {
+ .probe = vpfe_probe,
+ .remove = vpfe_remove,
+ .driver = {
+ .name = VPFE_MODULE_NAME,
+ .owner = THIS_MODULE,
+ .pm = &vpfe_pm_ops,
+ .of_match_table = of_match_ptr(vpfe_of_match),
+ },
+};
+
+module_platform_driver(vpfe_driver);
+
+MODULE_AUTHOR("Texas Instruments");
+MODULE_DESCRIPTION("TI AM437x VPFE driver");
+MODULE_LICENSE("GPL");
+MODULE_VERSION(VPFE_VERSION);
diff --git a/drivers/media/platform/am437x/am437x-vpfe.h b/drivers/media/platform/am437x/am437x-vpfe.h
new file mode 100644
index 0000000..0f55735
--- /dev/null
+++ b/drivers/media/platform/am437x/am437x-vpfe.h
@@ -0,0 +1,283 @@
+/*
+ * Copyright (C) 2013 - 2014 Texas Instruments, Inc.
+ *
+ * Benoit Parrot <bparrot-l0cyMroinI0@public.gmane.org>
+ * Lad, Prabhakar <prabhakar.csengg-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
+ *
+ * This program is free software; you may redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#ifndef AM437X_VPFE_H
+#define AM437X_VPFE_H
+
+#include <linux/am437x-vpfe.h>
+#include <linux/clk.h>
+#include <linux/device.h>
+#include <linux/io.h>
+#include <linux/i2c.h>
+#include <linux/videodev2.h>
+
+#include <media/v4l2-dev.h>
+#include <media/v4l2-device.h>
+#include <media/v4l2-ioctl.h>
+#include <media/videobuf2-dma-contig.h>
+
+#include "am437x-vpfe_regs.h"
+
+enum vpfe_pin_pol {
+ VPFE_PINPOL_POSITIVE = 0,
+ VPFE_PINPOL_NEGATIVE,
+};
+
+enum vpfe_hw_if_type {
+ /* Raw Bayer */
+ VPFE_RAW_BAYER = 0,
+ /* BT656 - 8 bit */
+ VPFE_BT656,
+ /* BT656 - 10 bit */
+ VPFE_BT656_10BIT,
+ /* YCbCr - 8 bit with external sync */
+ VPFE_YCBCR_SYNC_8,
+ /* YCbCr - 16 bit with external sync */
+ VPFE_YCBCR_SYNC_16,
+};
+
+/* interface description */
+struct vpfe_hw_if_param {
+ enum vpfe_hw_if_type if_type;
+ enum vpfe_pin_pol hdpol;
+ enum vpfe_pin_pol vdpol;
+ unsigned int bus_width;
+};
+
+#define VPFE_MAX_SUBDEV 1
+#define VPFE_MAX_INPUTS 1
+
+struct vpfe_pixel_format {
+ struct v4l2_fmtdesc fmtdesc;
+ /* bytes per pixel */
+ int bpp;
+};
+
+struct vpfe_std_info {
+ int active_pixels;
+ int active_lines;
+ /* current frame format */
+ int frame_format;
+};
+
+struct vpfe_route {
+ u32 input;
+ u32 output;
+};
+
+struct vpfe_subdev_info {
+ char name[32];
+ /* Sub device group id */
+ int grp_id;
+ /* inputs available at the sub device */
+ struct v4l2_input inputs[VPFE_MAX_INPUTS];
+ /* Sub dev routing information for each input */
+ struct vpfe_route *routes;
+ /* check if sub dev supports routing */
+ int can_route;
+ /* ccdc bus/interface configuration */
+ struct vpfe_hw_if_param vpfe_param;
+ struct v4l2_subdev *sd;
+};
+
+struct vpfe_config {
+ /* information about each subdev */
+ struct vpfe_subdev_info sub_devs[VPFE_MAX_SUBDEV];
+ /* Flat array, arranged in groups */
+ struct v4l2_async_subdev *asd[VPFE_MAX_SUBDEV];
+};
+
+struct vpfe_cap_buffer {
+ struct vb2_buffer vb;
+ struct list_head list;
+};
+
+enum ccdc_pixfmt {
+ CCDC_PIXFMT_RAW = 0,
+ CCDC_PIXFMT_YCBCR_16BIT,
+ CCDC_PIXFMT_YCBCR_8BIT,
+};
+
+enum ccdc_frmfmt {
+ CCDC_FRMFMT_PROGRESSIVE = 0,
+ CCDC_FRMFMT_INTERLACED,
+};
+
+/* PIXEL ORDER IN MEMORY from LSB to MSB */
+/* only applicable for 8-bit input mode */
+enum ccdc_pixorder {
+ CCDC_PIXORDER_YCBYCR,
+ CCDC_PIXORDER_CBYCRY,
+};
+
+enum ccdc_buftype {
+ CCDC_BUFTYPE_FLD_INTERLEAVED,
+ CCDC_BUFTYPE_FLD_SEPARATED
+};
+
+
+/* returns the highest bit used for the gamma */
+static inline u8 ccdc_gamma_width_max_bit(enum vpfe_ccdc_gamma_width width)
+{
+ return 15 - width;
+}
+
+/* returns the highest bit used for this data size */
+static inline u8 ccdc_data_size_max_bit(enum vpfe_ccdc_data_size sz)
+{
+ return sz == VPFE_CCDC_DATA_8BITS ? 7 : 15 - sz;
+}
+
+/* Structure for CCDC configuration parameters for raw capture mode */
+struct ccdc_params_raw {
+ /* pixel format */
+ enum ccdc_pixfmt pix_fmt;
+ /* progressive or interlaced frame */
+ enum ccdc_frmfmt frm_fmt;
+ struct v4l2_rect win;
+ /* Current Format Bytes Per Pixels */
+ unsigned int bytesperpixel;
+ /* Current Format Bytes per Lines
+ * (Aligned to 32 bytes) used for HORZ_INFO
+ */
+ unsigned int bytesperline;
+ /* field id polarity */
+ enum vpfe_pin_pol fid_pol;
+ /* vertical sync polarity */
+ enum vpfe_pin_pol vd_pol;
+ /* horizontal sync polarity */
+ enum vpfe_pin_pol hd_pol;
+ /* interleaved or separated fields */
+ enum ccdc_buftype buf_type;
+ /*
+ * enable to store the image in inverse
+ * order in memory(bottom to top)
+ */
+ unsigned char image_invert_enable;
+ /* configurable parameters */
+ struct vpfe_ccdc_config_params_raw config_params;
+};
+
+struct ccdc_params_ycbcr {
+ /* pixel format */
+ enum ccdc_pixfmt pix_fmt;
+ /* progressive or interlaced frame */
+ enum ccdc_frmfmt frm_fmt;
+ struct v4l2_rect win;
+ /* Current Format Bytes Per Pixels */
+ unsigned int bytesperpixel;
+ /* Current Format Bytes per Lines
+ * (Aligned to 32 bytes) used for HORZ_INFO
+ */
+ unsigned int bytesperline;
+ /* field id polarity */
+ enum vpfe_pin_pol fid_pol;
+ /* vertical sync polarity */
+ enum vpfe_pin_pol vd_pol;
+ /* horizontal sync polarity */
+ enum vpfe_pin_pol hd_pol;
+ /* enable BT.656 embedded sync mode */
+ int bt656_enable;
+ /* cb:y:cr:y or y:cb:y:cr in memory */
+ enum ccdc_pixorder pix_order;
+ /* interleaved or separated fields */
+ enum ccdc_buftype buf_type;
+};
+
+/*
+ * CCDC operational configuration
+ */
+struct ccdc_config {
+ /* CCDC interface type */
+ enum vpfe_hw_if_type if_type;
+ /* Raw Bayer configuration */
+ struct ccdc_params_raw bayer;
+ /* YCbCr configuration */
+ struct ccdc_params_ycbcr ycbcr;
+ /* ccdc base address */
+ void __iomem *base_addr;
+};
+
+struct vpfe_ccdc {
+ struct ccdc_config ccdc_cfg;
+ u32 ccdc_ctx[VPFE_REG_END / sizeof(u32)];
+};
+
+struct vpfe_device {
+ /* V4l2 specific parameters */
+ /* Identifies video device for this channel */
+ struct video_device *video_dev;
+ /* sub devices */
+ struct v4l2_subdev **sd;
+ /* vpfe cfg */
+ struct vpfe_config *cfg;
+ /* V4l2 device */
+ struct v4l2_device v4l2_dev;
+ /* parent device */
+ struct device *pdev;
+ /* subdevice async Notifier */
+ struct v4l2_async_notifier notifier;
+ /* Indicates id of the field which is being displayed */
+ unsigned field;
+ unsigned sequence;
+ /* current interface type */
+ struct vpfe_hw_if_param vpfe_if_params;
+ /* ptr to currently selected sub device */
+ struct vpfe_subdev_info *current_subdev;
+ /* current input at the sub device */
+ int current_input;
+ /* Keeps track of the information about the standard */
+ struct vpfe_std_info std_info;
+ /* std index into std table */
+ int std_index;
+ /* IRQs used when CCDC output to SDRAM */
+ unsigned int irq;
+ /* Pointer pointing to current v4l2_buffer */
+ struct vpfe_cap_buffer *cur_frm;
+ /* Pointer pointing to next v4l2_buffer */
+ struct vpfe_cap_buffer *next_frm;
+ /* Used to store pixel format */
+ struct v4l2_format fmt;
+ /* Used to store current bytes per pixel based on current format */
+ unsigned int bpp;
+ /*
+ * used when IMP is chained to store the crop window which
+ * is different from the image window
+ */
+ struct v4l2_rect crop;
+ /* Buffer queue used in video-buf */
+ struct vb2_queue buffer_queue;
+ /* Allocator-specific contexts for each plane */
+ struct vb2_alloc_ctx *alloc_ctx;
+ /* Queue of filled frames */
+ struct list_head dma_queue;
+ /* IRQ lock for DMA queue */
+ spinlock_t dma_queue_lock;
+ /* lock used to access this structure */
+ struct mutex lock;
+ /*
+ * offset where second field starts from the starting of the
+ * buffer for field separated YCbCr formats
+ */
+ u32 field_off;
+ struct vpfe_ccdc ccdc;
+};
+
+#endif /* AM437X_VPFE_H */
diff --git a/drivers/media/platform/am437x/am437x-vpfe_regs.h b/drivers/media/platform/am437x/am437x-vpfe_regs.h
new file mode 100644
index 0000000..4a0ed29
--- /dev/null
+++ b/drivers/media/platform/am437x/am437x-vpfe_regs.h
@@ -0,0 +1,140 @@
+/*
+ * TI AM437x Image Sensor Interface Registers
+ *
+ * Copyright (C) 2013 - 2014 Texas Instruments, Inc.
+ *
+ * Benoit Parrot <bparrot-l0cyMroinI0@public.gmane.org>
+ * Lad, Prabhakar <prabhakar.csengg-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed "as is" WITHOUT ANY WARRANTY of any
+ * kind, whether express or implied; without even the implied warranty
+ * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#ifndef AM437X_VPFE_REGS_H
+#define AM437X_VPFE_REGS_H
+
+/* VPFE module register offset */
+#define VPFE_REVISION 0x0
+#define VPFE_PCR 0x4
+#define VPFE_SYNMODE 0x8
+#define VPFE_HD_VD_WID 0xc
+#define VPFE_PIX_LINES 0x10
+#define VPFE_HORZ_INFO 0x14
+#define VPFE_VERT_START 0x18
+#define VPFE_VERT_LINES 0x1c
+#define VPFE_CULLING 0x20
+#define VPFE_HSIZE_OFF 0x24
+#define VPFE_SDOFST 0x28
+#define VPFE_SDR_ADDR 0x2c
+#define VPFE_CLAMP 0x30
+#define VPFE_DCSUB 0x34
+#define VPFE_COLPTN 0x38
+#define VPFE_BLKCMP 0x3c
+#define VPFE_VDINT 0x48
+#define VPFE_ALAW 0x4c
+#define VPFE_REC656IF 0x50
+#define VPFE_CCDCFG 0x54
+#define VPFE_DMA_CNTL 0x98
+#define VPFE_SYSCONFIG 0x104
+#define VPFE_CONFIG 0x108
+#define VPFE_IRQ_EOI 0x110
+#define VPFE_IRQ_STS_RAW 0x114
+#define VPFE_IRQ_STS 0x118
+#define VPFE_IRQ_EN_SET 0x11c
+#define VPFE_IRQ_EN_CLR 0x120
+#define VPFE_REG_END 0x124
+
+/* Define bit fields within selected registers */
+#define VPFE_FID_POL_MASK 1
+#define VPFE_FID_POL_SHIFT 4
+#define VPFE_HD_POL_MASK 1
+#define VPFE_HD_POL_SHIFT 3
+#define VPFE_VD_POL_MASK 1
+#define VPFE_VD_POL_SHIFT 2
+#define VPFE_HSIZE_OFF_MASK 0xffffffe0
+#define VPFE_32BYTE_ALIGN_VAL 31
+#define VPFE_FRM_FMT_MASK 0x1
+#define VPFE_FRM_FMT_SHIFT 7
+#define VPFE_DATA_SZ_MASK 7
+#define VPFE_DATA_SZ_SHIFT 8
+#define VPFE_PIX_FMT_MASK 3
+#define VPFE_PIX_FMT_SHIFT 12
+#define VPFE_VP2SDR_DISABLE 0xfffbffff
+#define VPFE_WEN_ENABLE (1 << 17)
+#define VPFE_SDR2RSZ_DISABLE 0xfff7ffff
+#define VPFE_VDHDEN_ENABLE (1 << 16)
+#define VPFE_LPF_ENABLE (1 << 14)
+#define VPFE_ALAW_ENABLE (1 << 3)
+#define VPFE_ALAW_GAMMA_WD_MASK 7
+#define VPFE_BLK_CLAMP_ENABLE (1 << 31)
+#define VPFE_BLK_SGAIN_MASK 0x1f
+#define VPFE_BLK_ST_PXL_MASK 0x7fff
+#define VPFE_BLK_ST_PXL_SHIFT 10
+#define VPFE_BLK_SAMPLE_LN_MASK 7
+#define VPFE_BLK_SAMPLE_LN_SHIFT 28
+#define VPFE_BLK_SAMPLE_LINE_MASK 7
+#define VPFE_BLK_SAMPLE_LINE_SHIFT 25
+#define VPFE_BLK_DC_SUB_MASK 0x03fff
+#define VPFE_BLK_COMP_MASK 0xff
+#define VPFE_BLK_COMP_GB_COMP_SHIFT 8
+#define VPFE_BLK_COMP_GR_COMP_SHIFT 16
+#define VPFE_BLK_COMP_R_COMP_SHIFT 24
+#define VPFE_LATCH_ON_VSYNC_DISABLE (1 << 15)
+#define VPFE_DATA_PACK_ENABLE (1 << 11)
+#define VPFE_HORZ_INFO_SPH_SHIFT 16
+#define VPFE_VERT_START_SLV0_SHIFT 16
+#define VPFE_VDINT_VDINT0_SHIFT 16
+#define VPFE_VDINT_VDINT1_MASK 0xffff
+#define VPFE_PPC_RAW 1
+#define VPFE_DCSUB_DEFAULT_VAL 0
+#define VPFE_CLAMP_DEFAULT_VAL 0
+#define VPFE_COLPTN_VAL 0xbb11bb11
+#define VPFE_TWO_BYTES_PER_PIXEL 2
+#define VPFE_INTERLACED_IMAGE_INVERT 0x4b6d
+#define VPFE_INTERLACED_NO_IMAGE_INVERT 0x0249
+#define VPFE_PROGRESSIVE_IMAGE_INVERT 0x4000
+#define VPFE_PROGRESSIVE_NO_IMAGE_INVERT 0
+#define VPFE_INTERLACED_HEIGHT_SHIFT 1
+#define VPFE_SYN_MODE_INPMOD_SHIFT 12
+#define VPFE_SYN_MODE_INPMOD_MASK 3
+#define VPFE_SYN_MODE_8BITS (7 << 8)
+#define VPFE_SYN_MODE_10BITS (6 << 8)
+#define VPFE_SYN_MODE_11BITS (5 << 8)
+#define VPFE_SYN_MODE_12BITS (4 << 8)
+#define VPFE_SYN_MODE_13BITS (3 << 8)
+#define VPFE_SYN_MODE_14BITS (2 << 8)
+#define VPFE_SYN_MODE_15BITS (1 << 8)
+#define VPFE_SYN_MODE_16BITS (0 << 8)
+#define VPFE_SYN_FLDMODE_MASK 1
+#define VPFE_SYN_FLDMODE_SHIFT 7
+#define VPFE_REC656IF_BT656_EN 3
+#define VPFE_SYN_MODE_VD_POL_NEGATIVE (1 << 2)
+#define VPFE_CCDCFG_Y8POS_SHIFT 11
+#define VPFE_CCDCFG_BW656_10BIT (1 << 5)
+#define VPFE_SDOFST_FIELD_INTERLEAVED 0x249
+#define VPFE_NO_CULLING 0xffff00ff
+#define VPFE_VDINT0 (1 << 0)
+#define VPFE_VDINT1 (1 << 1)
+#define VPFE_VDINT2 (1 << 2)
+#define VPFE_DMA_CNTL_OVERFLOW (1 << 31)
+
+#define VPFE_CONFIG_PCLK_INV_SHIFT 0
+#define VPFE_CONFIG_PCLK_INV_MASK 1
+#define VPFE_CONFIG_PCLK_INV_NOT_INV 0
+#define VPFE_CONFIG_PCLK_INV_INV 1
+#define VPFE_CONFIG_EN_SHIFT 1
+#define VPFE_CONFIG_EN_MASK 2
+#define VPFE_CONFIG_EN_DISABLE 0
+#define VPFE_CONFIG_EN_ENABLE 1
+#define VPFE_CONFIG_ST_SHIFT 2
+#define VPFE_CONFIG_ST_MASK 4
+#define VPFE_CONFIG_ST_OCP_ACTIVE 0
+#define VPFE_CONFIG_ST_OCP_STANDBY 1
+
+#endif /* AM437X_VPFE_REGS_H */
diff --git a/include/uapi/linux/Kbuild b/include/uapi/linux/Kbuild
index ed39ac8..65495f0 100644
--- a/include/uapi/linux/Kbuild
+++ b/include/uapi/linux/Kbuild
@@ -34,6 +34,7 @@ header-y += adfs_fs.h
header-y += affs_hardblocks.h
header-y += agpgart.h
header-y += aio_abi.h
+header-y += am437x-vpfe.h
header-y += apm_bios.h
header-y += arcfb.h
header-y += atalk.h
diff --git a/include/uapi/linux/am437x-vpfe.h b/include/uapi/linux/am437x-vpfe.h
new file mode 100644
index 0000000..9b03033f
--- /dev/null
+++ b/include/uapi/linux/am437x-vpfe.h
@@ -0,0 +1,122 @@
+/*
+ * Copyright (C) 2013 - 2014 Texas Instruments, Inc.
+ *
+ * Benoit Parrot <bparrot-l0cyMroinI0@public.gmane.org>
+ * Lad, Prabhakar <prabhakar.csengg-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
+ *
+ * This program is free software; you may redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#ifndef AM437X_VPFE_USER_H
+#define AM437X_VPFE_USER_H
+
+enum vpfe_ccdc_data_size {
+ VPFE_CCDC_DATA_16BITS = 0,
+ VPFE_CCDC_DATA_15BITS,
+ VPFE_CCDC_DATA_14BITS,
+ VPFE_CCDC_DATA_13BITS,
+ VPFE_CCDC_DATA_12BITS,
+ VPFE_CCDC_DATA_11BITS,
+ VPFE_CCDC_DATA_10BITS,
+ VPFE_CCDC_DATA_8BITS,
+};
+
+/* enum for No of pixel per line to be avg. in Black Clamping*/
+enum vpfe_ccdc_sample_length {
+ VPFE_CCDC_SAMPLE_1PIXELS = 0,
+ VPFE_CCDC_SAMPLE_2PIXELS,
+ VPFE_CCDC_SAMPLE_4PIXELS,
+ VPFE_CCDC_SAMPLE_8PIXELS,
+ VPFE_CCDC_SAMPLE_16PIXELS,
+};
+
+/* enum for No of lines in Black Clamping */
+enum vpfe_ccdc_sample_line {
+ VPFE_CCDC_SAMPLE_1LINES = 0,
+ VPFE_CCDC_SAMPLE_2LINES,
+ VPFE_CCDC_SAMPLE_4LINES,
+ VPFE_CCDC_SAMPLE_8LINES,
+ VPFE_CCDC_SAMPLE_16LINES,
+};
+
+/* enum for Alaw gamma width */
+enum vpfe_ccdc_gamma_width {
+ VPFE_CCDC_GAMMA_BITS_15_6 = 0, /* use bits 15-6 for gamma */
+ VPFE_CCDC_GAMMA_BITS_14_5,
+ VPFE_CCDC_GAMMA_BITS_13_4,
+ VPFE_CCDC_GAMMA_BITS_12_3,
+ VPFE_CCDC_GAMMA_BITS_11_2,
+ VPFE_CCDC_GAMMA_BITS_10_1,
+ VPFE_CCDC_GAMMA_BITS_09_0, /* use bits 9-0 for gamma */
+};
+
+/* structure for ALaw */
+struct vpfe_ccdc_a_law {
+ /* Enable/disable A-Law */
+ unsigned char enable;
+ /* Gamma Width Input */
+ enum vpfe_ccdc_gamma_width gamma_wd;
+};
+
+/* structure for Black Clamping */
+struct vpfe_ccdc_black_clamp {
+ unsigned char enable;
+ /* only if bClampEnable is TRUE */
+ enum vpfe_ccdc_sample_length sample_pixel;
+ /* only if bClampEnable is TRUE */
+ enum vpfe_ccdc_sample_line sample_ln;
+ /* only if bClampEnable is TRUE */
+ unsigned short start_pixel;
+ /* only if bClampEnable is TRUE */
+ unsigned short sgain;
+ /* only if bClampEnable is FALSE */
+ unsigned short dc_sub;
+};
+
+/* structure for Black Level Compensation */
+struct vpfe_ccdc_black_compensation {
+ /* Constant value to subtract from Red component */
+ char r;
+ /* Constant value to subtract from Gr component */
+ char gr;
+ /* Constant value to subtract from Blue component */
+ char b;
+ /* Constant value to subtract from Gb component */
+ char gb;
+};
+
+/* Structure for CCDC configuration parameters for raw capture mode passed
+ * by application
+ */
+struct vpfe_ccdc_config_params_raw {
+ /* data size value from 8 to 16 bits */
+ enum vpfe_ccdc_data_size data_sz;
+ /* Structure for Optional A-Law */
+ struct vpfe_ccdc_a_law alaw;
+ /* Structure for Optical Black Clamp */
+ struct vpfe_ccdc_black_clamp blk_clamp;
+ /* Structure for Black Compensation */
+ struct vpfe_ccdc_black_compensation blk_comp;
+};
+
+/*
+ * Private IOCTL
+ * VIDIOC_AM437X_CCDC_CFG - Set CCDC configuration for raw capture
+ * This is an experimental ioctl that will change in future kernels. So use
+ * this ioctl with care !
+ **/
+#define VIDIOC_AM437X_CCDC_CFG \
+ _IOW('V', BASE_VIDIOC_PRIVATE + 1, void *)
+
+#endif /* AM437X_VPFE_USER_H */
--
1.9.1
^ permalink raw reply related
* [GIT PULL] kselftest-3.19-rc1
From: Shuah Khan @ 2014-12-09 19:42 UTC (permalink / raw)
To: Linus Torvalds, linux-kernel@vger.kernel.org, linux-api
Cc: Shuah Khan, Shuah Khan
Hi Linus,
Please pull the following kselftest updates for 3.19-rc1. Details
in the singed tag:
https://git.kernel.org/cgit/linux/kernel/git/shuah/linux-kselftest.git/tag/?h=fixes&id=kselftest-3.19-rc1
The following changes since commit 0df1f2487d2f0d04703f142813d53615d62a1da4:
Linux 3.18-rc3 (2014-11-02 15:01:51 -0800)
are available in the git repository at:
git@gitolite.kernel.org:/pub/scm/linux/kernel/git/shuah/linux-kselftest
fixes
for you to fetch changes up to 3ce51050fadd63737c03627293ca2dc4be238891:
selftest: size: Add size test for Linux kernel (2014-12-03 19:27:47 -0700)
----------------------------------------------------------------
kselftest updates for 3.19-rc1
- kcmp test include file cleanup
- kcmp change to build on all architectures
- A light weight kselftest framework that provides a set of
interfaces for tests to use to report results. In addition,
several tests are updated to use the framework.
- A new runtime system size test that prints the amount of RAM
that the currently running system is using.
----------------------------------------------------------------
Michael Ellerman (3):
kcmp: Move kcmp.h into uapi
selftests/kcmp: Don't include kernel headers
selftests/kcmp: Always try to build the test
Shuah Khan (7):
selftests/net: move test out of Makefile into a shell script
selftests/user: move test out of Makefile into a shell script
selftests: add kselftest framework for uniform test reporting
selftests/breakpoints: change test to use ksft framework
selftests/ipc: change test to use ksft framework
selftests/kcmp: change test to use ksft framework
selftests/timers: change test to use ksft framework
Tim Bird (1):
selftest: size: Add size test for Linux kernel
include/uapi/linux/Kbuild | 1 +
include/{ => uapi}/linux/kcmp.h | 6 +-
tools/testing/selftests/Makefile | 1 +
.../selftests/breakpoints/breakpoint_test.c | 10 ++-
tools/testing/selftests/ipc/msgque.c | 26 +++---
tools/testing/selftests/kcmp/Makefile | 22 +----
tools/testing/selftests/kcmp/kcmp_test.c | 27 ++++--
tools/testing/selftests/kselftest.h | 62 +++++++++++++
tools/testing/selftests/net/Makefile | 8 +-
tools/testing/selftests/net/test_bpf.sh | 10 +++
tools/testing/selftests/size/.gitignore | 1 +
tools/testing/selftests/size/Makefile | 12 +++
tools/testing/selftests/size/get_size.c | 100
+++++++++++++++++++++
tools/testing/selftests/timers/posix_timers.c | 14 +--
tools/testing/selftests/user/Makefile | 8 +-
tools/testing/selftests/user/test_user_copy.sh | 10 +++
16 files changed, 252 insertions(+), 66 deletions(-)
rename include/{ => uapi}/linux/kcmp.h (62%)
create mode 100644 tools/testing/selftests/kselftest.h
create mode 100755 tools/testing/selftests/net/test_bpf.sh
create mode 100644 tools/testing/selftests/size/.gitignore
create mode 100644 tools/testing/selftests/size/Makefile
create mode 100644 tools/testing/selftests/size/get_size.c
create mode 100755 tools/testing/selftests/user/test_user_copy.sh
thanks,
-- Shuah
--
Shuah Khan
Sr. Linux Kernel Developer
Samsung Open Source Group
Samsung Research America (Silicon Valley)
shuahkh@osg.samsung.com | (970) 217-8978
^ permalink raw reply
* Re: [CFT][PATCH 6/7] userns: Add a knob to disable setgroups on a per user namespace basis
From: Eric W. Biederman @ 2014-12-09 19:31 UTC (permalink / raw)
To: Andy Lutomirski
Cc: linux-man, Kees Cook, Linux API, Linux Containers, Josh Triplett,
stable, linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
Kenton Varda, LSM, Michael Kerrisk-manpages, Richard Weinberger,
Casey Schaufler, Andrew Morton
In-Reply-To: <87a92xn2io.fsf-JOvCrm2gF+uungPnsOpG7nhyD016LWXt@public.gmane.org>
ebiederm-aS9lmoZGLiVWk0Htik3J/w@public.gmane.org (Eric W. Biederman) writes:
> Andy Lutomirski <luto-kltTT9wpgjJwATOyAt5JVQ@public.gmane.org> writes:
>
>>
>> This text was actually my suggested comment text.
>
> Now I see.
>
>> If you put smp_rmb() in this function with a comment like that, then I
>> think it will all make sense and be obviously correct (even with most
>> of the other barriers removed).
>
> Right.
>
> Given that we have to be careful when using these things anyway what
> I was hoping to achieve with the barriers appears impossible, and
> confusing so I will see about just adding barriers where we need them
> for real. Sigh.
Doh. The code has been entirely too clever.
There are no need for atomics or other cleverness, I just need to
generalize id_map_mutex. I knew that had to be a trivially correct
way of handling this mess.
Eric
^ permalink raw reply
* selftests: question about git repos containing selftest.
From: Young, David @ 2014-12-09 19:22 UTC (permalink / raw)
To: linux-api-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
shuahkh-JPH+aEBZ4P+UEJcrhfAQsw@public.gmane.org
Cc: linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Greetings,
I'm trying out the new kernel selftests and was looking for the "bleeding edge" repository to clone. According to the wiki https://kselftest.wiki.kernel.org/ this is the appropriate repo:
git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest.git
However, I am finding newer and more frequent changes are in linux-next.
https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git
Which should I clone for the most fresh changes?
-David Young
^ permalink raw reply
* Re: [RFC] lsm: namespace hooks
From: Eric W. Biederman @ 2014-12-09 16:13 UTC (permalink / raw)
To: Lukasz Pawelczyk
Cc: Vladimir Davydov, Miklos Szeredi, Lukasz Pawelczyk, Oleg Nesterov,
David Howells, Mark Rustad, Juri Lelli, Richard Weinberger,
Daeseok Youn, Ingo Molnar, Jeff Kirsher, David Rientjes,
Alex Thorlton, Matthew Dempsky, Kees Cook, Nikolay Aleksandrov,
Dario Faggioli, Al Viro, James Morris, open list:ABI/API,
Linux Containers, LKML
In-Reply-To: <1417524193.1899.2.camel@samsung.com>
Lukasz Pawelczyk <l.pawelczyk@samsung.com> writes:
> On czw, 2014-11-27 at 18:38 +0100, Lukasz Pawelczyk wrote:
>> Right now the major issue I see is that LSM by itself is not defined how
>> it's going to behave. It's up to a specific LSM module.
>>
>> E.g. within the Smack namespace filling the map is a privileged
>> operation. So by tying them up you cripple the ability to create a fully
>> working user namespace as an unprivileged process.
>
> Entertaining the idea that LSM namespace would be tied to user namespace
> (as you suggested) how do you see the limitation I described above?
If they are tied it means you wind up in a situation where there are no
labels you can set.
In general setting the uid and gid maps is also a privileged operations.
I really don't know what makes sense to do with lsms and namespaces
generically, but I do know that your lsm namespace patche were awkwards
and weird and seemed to be taking things in the wrong direction.
Eric
^ permalink raw reply
* Re: [tpmdd-devel] [PATCH v9 8/8] tpm: TPM 2.0 FIFO Interface
From: Jarkko Sakkinen @ 2014-12-09 15:47 UTC (permalink / raw)
To: Peter Huewe
Cc: christophe.ricard-Re5JQEeQqe8AvxtiuMwx3w,
josh.triplett-ral2JQCrhuEAvxtiuMwx3w,
linux-api-u79uwXL29TY76Z2rM5mHXA, Ashley Lai,
linux-kernel-u79uwXL29TY76Z2rM5mHXA, Will Arthur,
tpmdd-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f,
jason.gunthorpe-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/,
trousers-tech-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f
In-Reply-To: <trinity-0fea8cea-4011-4d04-af4a-e7583a7184b4-1417791661803@3capp-gmx-bs52>
On Fri, Dec 05, 2014 at 04:01:01PM +0100, Peter Huewe wrote:
> >
> > > Am Donnerstag, 4. Dezember 2014, 06:55:18 schrieb Jarkko Sakkinen:
> > > > From: Will Arthur <will.c.arthur-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
> > > >
> > > > Detect TPM 2.0 by using the extended STS (STS3) register. For TPM 2.0,
> > > > instead of calling tpm_get_timeouts(), assign duration and timeout
> > > > values defined in the TPM 2.0 PTP specification.
> > > >
> > > > Signed-off-by: Will Arthur <will.c.arthur-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
> > > > Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen-VuQAYsv1563Yd54FQh9/CA@public.gmane.org>
> >
> > > >
> > > > + sts3 = ioread8(chip->vendor.iobase + TPM_STS3(1));
> > > > + if ((sts3 & TPM_STS3_TPM2_FAM) == TPM_STS3_TPM2_FAM)
> > > > + chip->flags = TPM_CHIP_FLAG_TPM2;
> > > > +
> > > >
> >
> > >
> > > When loading tpm_tis force=1 with my tpm1.2 chip on a machine without bios
> > > integration, it fets detected as a TPM2.0 chip :/
> > >
> > > sudo rmmod tpm_tis
> > > # modprobe tpm_tis force=1
> > > modprobe: ERROR: could not insert 'tpm_tis': No such device
> > > # dmesg
> > > [ 263.903828] tpm_tis tpm_tis: 2.0 TPM (device-id 0xB, rev-id 16)
> > > [ 263.948049] tpm_tis tpm_tis: A TPM error (10) occurred continue selftest
> > > [ 263.948120] tpm_tis tpm_tis: TPM self test failed
> > >
> > >
> > > sts3 is reported as 0xff from my TPM1.2
> > >
> >
> >
> > Hmm,
> > my TPM2.0 chip also reports sts3 as 0xff (when loading with force=1 on a
> > machine without bios integration)
> >
> > [ 307.095344] sts3 ff
> > [ 307.095366] tpm_tis tpm_tis: 2.0 TPM (device-id 0x1A, rev-id 16)
> > [ 307.140047] tpm_tis tpm_tis: A TPM error (256) occurred continue selftest
> > [ 307.140056] tpm_tis tpm_tis: TPM self test failed
>
>
> You are reading "sts3" - before requesting the locality and thus
> it returns 0xff for a TPM20 chip as well.
> --> You have to have an active locality first.
>
>
> For a TPM2.0 0xFF is not a valid value (if active locality is
> set), since reading commandCancel and resetEstablishment bit
> always return 0 on reads (according to spec).
>
> --> 0xFF should be treated as a TPM1.2 (older tpms with TIS 1.2)
> --> 0x04 should be treated as TPM 2.0
> --> 0x08 should be treated as TPM1.2 (newer tpms with TIS1.3 enhanced)
Correct. I discussed with some people and verified the reason to be
such that if firmware does nothing, the locality is unopened. I have
access today to similar setup and can fix this regression and verify
my fix.
Thanks for pointing this out!
> Thanks,
> Peter
/Jarkko
^ permalink raw reply
* Fwd: Fwd: [PATCH] arch: uapi: asm: mman.h: Let MADV_FREE have same value for all architectures
From: Chen Gang @ 2014-12-09 14:51 UTC (permalink / raw)
To: dietlibc-a6ha8lKT7ZQ
Cc: Darrick J. Wong, linux-api-u79uwXL29TY76Z2rM5mHXA,
akpm-de/tnXTf+JLsfHDXvbKv3WD2FQJk+8+b@public.gmane.org
In-Reply-To: <54870B36.3000901-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
Hello dietlibc members:
When I sent a Linux kernel patch for uapi, some members suggest me to
Cc dietlibc members, so I forward the related mail to dietlibc mailing
list.
Please check, and welcome any ideas, suggestions, or completions.
Thanks.
-------- Forwarded Message --------
Subject: [PATCH] arch: uapi: asm: mman.h: Let MADV_FREE have same value for all architectures
Date: Fri, 05 Dec 2014 06:58:29 +0800
From: Chen Gang <gang.chen.5i5j-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
To: akpm-de/tnXTf+JLsfHDXvbKv3WD2FQJk+8+b@public.gmane.org <akpm-de/tnXTf+JLsfHDXvbKv3WD2FQJk+8+b@public.gmane.org>, rth-hL46jP5Bxq7R7s880joybQ@public.gmane.org <rth-hL46jP5Bxq7R7s880joybQ@public.gmane.org>, ink-biIs/Y0ymYJMZLIVYojuPNP0rXTJTi09@public.gmane.org <ink-biIs/Y0ymYJMZLIVYojuPNP0rXTJTi09@public.gmane.org>, mattst88-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org <mattst88-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>, Ralf Baechle <ralf-6z/3iImG2C8G8FEW9MqTrA@public.gmane.org>, jejb-6jwH94ZQLHl74goWV3ctuw@public.gmane.org <jejb-6jwH94ZQLHl74goWV3ctuw@public.gmane.org>, deller-Mmb7MZpHnFY@public.gmane.org <deller-Mmb7MZpHnFY@public.gmane.org>, chris-YvXeqwSYzG2sTnJN9+BGXg@public.gmane.org <chris-YvXeqwSYzG2sTnJN9+BGXg@public.gmane.org>, jcmvbkbc-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org <jcmvbkbc-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>, Arnd Bergmann <arnd-r2nGTMty4D4@public.gmane.org>, minchan-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org
CC: linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org <linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>, linux-arch-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-api-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
For uapi, need try to let all macros have same value, and MADV_FREE is
added into main branch recently, so need redefine MADV_FREE for it.
At present, '8' can be shared with all architectures, so redefine it to
'8'.
Signed-off-by: Chen Gang <gang.chen.5i5j-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
---
arch/alpha/include/uapi/asm/mman.h | 2 +-
arch/mips/include/uapi/asm/mman.h | 2 +-
arch/parisc/include/uapi/asm/mman.h | 2 +-
arch/xtensa/include/uapi/asm/mman.h | 2 +-
include/uapi/asm-generic/mman-common.h | 2 +-
5 files changed, 5 insertions(+), 5 deletions(-)
diff --git a/arch/alpha/include/uapi/asm/mman.h b/arch/alpha/include/uapi/asm/mman.h
index 836fbd4..0b8a5de 100644
--- a/arch/alpha/include/uapi/asm/mman.h
+++ b/arch/alpha/include/uapi/asm/mman.h
@@ -44,9 +44,9 @@
#define MADV_WILLNEED 3 /* will need these pages */
#define MADV_SPACEAVAIL 5 /* ensure resources are available */
#define MADV_DONTNEED 6 /* don't need these pages */
-#define MADV_FREE 7 /* free pages only if memory pressure */
/* common/generic parameters */
+#define MADV_FREE 8 /* free pages only if memory pressure */
#define MADV_REMOVE 9 /* remove these pages & resources */
#define MADV_DONTFORK 10 /* don't inherit across fork */
#define MADV_DOFORK 11 /* do inherit across fork */
diff --git a/arch/mips/include/uapi/asm/mman.h b/arch/mips/include/uapi/asm/mman.h
index 106e741..d247f54 100644
--- a/arch/mips/include/uapi/asm/mman.h
+++ b/arch/mips/include/uapi/asm/mman.h
@@ -67,9 +67,9 @@
#define MADV_SEQUENTIAL 2 /* expect sequential page references */
#define MADV_WILLNEED 3 /* will need these pages */
#define MADV_DONTNEED 4 /* don't need these pages */
-#define MADV_FREE 5 /* free pages only if memory pressure */
/* common parameters: try to keep these consistent across architectures */
+#define MADV_FREE 8 /* free pages only if memory pressure */
#define MADV_REMOVE 9 /* remove these pages & resources */
#define MADV_DONTFORK 10 /* don't inherit across fork */
#define MADV_DOFORK 11 /* do inherit across fork */
diff --git a/arch/parisc/include/uapi/asm/mman.h b/arch/parisc/include/uapi/asm/mman.h
index 6cb8db7..700d83f 100644
--- a/arch/parisc/include/uapi/asm/mman.h
+++ b/arch/parisc/include/uapi/asm/mman.h
@@ -40,9 +40,9 @@
#define MADV_SPACEAVAIL 5 /* insure that resources are reserved */
#define MADV_VPS_PURGE 6 /* Purge pages from VM page cache */
#define MADV_VPS_INHERIT 7 /* Inherit parents page size */
-#define MADV_FREE 8 /* free pages only if memory pressure */
/* common/generic parameters */
+#define MADV_FREE 8 /* free pages only if memory pressure */
#define MADV_REMOVE 9 /* remove these pages & resources */
#define MADV_DONTFORK 10 /* don't inherit across fork */
#define MADV_DOFORK 11 /* do inherit across fork */
diff --git a/arch/xtensa/include/uapi/asm/mman.h b/arch/xtensa/include/uapi/asm/mman.h
index 1b19f25..77eaca4 100644
--- a/arch/xtensa/include/uapi/asm/mman.h
+++ b/arch/xtensa/include/uapi/asm/mman.h
@@ -80,9 +80,9 @@
#define MADV_SEQUENTIAL 2 /* expect sequential page references */
#define MADV_WILLNEED 3 /* will need these pages */
#define MADV_DONTNEED 4 /* don't need these pages */
-#define MADV_FREE 5 /* free pages only if memory pressure */
/* common parameters: try to keep these consistent across architectures */
+#define MADV_FREE 8 /* free pages only if memory pressure */
#define MADV_REMOVE 9 /* remove these pages & resources */
#define MADV_DONTFORK 10 /* don't inherit across fork */
#define MADV_DOFORK 11 /* do inherit across fork */
diff --git a/include/uapi/asm-generic/mman-common.h b/include/uapi/asm-generic/mman-common.h
index 7a94102..8695959 100644
--- a/include/uapi/asm-generic/mman-common.h
+++ b/include/uapi/asm-generic/mman-common.h
@@ -34,9 +34,9 @@
#define MADV_SEQUENTIAL 2 /* expect sequential page references */
#define MADV_WILLNEED 3 /* will need these pages */
#define MADV_DONTNEED 4 /* don't need these pages */
-#define MADV_FREE 5 /* free pages only if memory pressure */
/* common parameters: try to keep these consistent across architectures */
+#define MADV_FREE 8 /* free pages only if memory pressure */
#define MADV_REMOVE 9 /* remove these pages & resources */
#define MADV_DONTFORK 10 /* don't inherit across fork */
#define MADV_DOFORK 11 /* do inherit across fork */
--
1.9.3
^ permalink raw reply related
* Fwd: [PATCH] arch: uapi: asm: mman.h: Let MADV_FREE have same value for all architectures
From: Chen Gang @ 2014-12-09 14:46 UTC (permalink / raw)
To: dietlibc-a6ha8lKT7ZQ
Cc: Darrick J. Wong, linux-api-u79uwXL29TY76Z2rM5mHXA,
akpm-de/tnXTf+JLsfHDXvbKv3WD2FQJk+8+b@public.gmane.org
In-Reply-To: <5480E715.3020900-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
Hello dietlibc members:
When I sent a Linux kernel patch for uapi, some members suggest me to
Cc dietlibc members, so I forward the related mail to dietlibc mailing
list.
Please check, and welcome any ideas, suggestions, or completions.
Thanks.
-------- Forwarded Message --------
Subject: [PATCH] arch: uapi: asm: mman.h: Let MADV_FREE have same value for all architectures
Date: Fri, 05 Dec 2014 06:58:29 +0800
From: Chen Gang <gang.chen.5i5j-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
To: akpm-de/tnXTf+JLsfHDXvbKv3WD2FQJk+8+b@public.gmane.org <akpm-de/tnXTf+JLsfHDXvbKv3WD2FQJk+8+b@public.gmane.org>, rth-hL46jP5Bxq7R7s880joybQ@public.gmane.org <rth-hL46jP5Bxq7R7s880joybQ@public.gmane.org>, ink-biIs/Y0ymYJMZLIVYojuPNP0rXTJTi09@public.gmane.org <ink-biIs/Y0ymYJMZLIVYojuPNP0rXTJTi09@public.gmane.org>, mattst88-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org <mattst88-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>, Ralf Baechle <ralf-6z/3iImG2C8G8FEW9MqTrA@public.gmane.org>, jejb-6jwH94ZQLHl74goWV3ctuw@public.gmane.org <jejb-6jwH94ZQLHl74goWV3ctuw@public.gmane.org>, deller-Mmb7MZpHnFY@public.gmane.org <deller-Mmb7MZpHnFY@public.gmane.org>, chris-YvXeqwSYzG2sTnJN9+BGXg@public.gmane.org <chris-YvXeqwSYzG2sTnJN9+BGXg@public.gmane.org>, jcmvbkbc-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org <jcmvbkbc-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>, Arnd Bergmann <arnd-r2nGTMty4D4@public.gmane.org>, minchan-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org
CC: linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org <linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>, linux-arch-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-api-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
For uapi, need try to let all macros have same value, and MADV_FREE is
added into main branch recently, so need redefine MADV_FREE for it.
At present, '8' can be shared with all architectures, so redefine it to
'8'.
Signed-off-by: Chen Gang <gang.chen.5i5j-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
---
arch/alpha/include/uapi/asm/mman.h | 2 +-
arch/mips/include/uapi/asm/mman.h | 2 +-
arch/parisc/include/uapi/asm/mman.h | 2 +-
arch/xtensa/include/uapi/asm/mman.h | 2 +-
include/uapi/asm-generic/mman-common.h | 2 +-
5 files changed, 5 insertions(+), 5 deletions(-)
diff --git a/arch/alpha/include/uapi/asm/mman.h b/arch/alpha/include/uapi/asm/mman.h
index 836fbd4..0b8a5de 100644
--- a/arch/alpha/include/uapi/asm/mman.h
+++ b/arch/alpha/include/uapi/asm/mman.h
@@ -44,9 +44,9 @@
#define MADV_WILLNEED 3 /* will need these pages */
#define MADV_SPACEAVAIL 5 /* ensure resources are available */
#define MADV_DONTNEED 6 /* don't need these pages */
-#define MADV_FREE 7 /* free pages only if memory pressure */
/* common/generic parameters */
+#define MADV_FREE 8 /* free pages only if memory pressure */
#define MADV_REMOVE 9 /* remove these pages & resources */
#define MADV_DONTFORK 10 /* don't inherit across fork */
#define MADV_DOFORK 11 /* do inherit across fork */
diff --git a/arch/mips/include/uapi/asm/mman.h b/arch/mips/include/uapi/asm/mman.h
index 106e741..d247f54 100644
--- a/arch/mips/include/uapi/asm/mman.h
+++ b/arch/mips/include/uapi/asm/mman.h
@@ -67,9 +67,9 @@
#define MADV_SEQUENTIAL 2 /* expect sequential page references */
#define MADV_WILLNEED 3 /* will need these pages */
#define MADV_DONTNEED 4 /* don't need these pages */
-#define MADV_FREE 5 /* free pages only if memory pressure */
/* common parameters: try to keep these consistent across architectures */
+#define MADV_FREE 8 /* free pages only if memory pressure */
#define MADV_REMOVE 9 /* remove these pages & resources */
#define MADV_DONTFORK 10 /* don't inherit across fork */
#define MADV_DOFORK 11 /* do inherit across fork */
diff --git a/arch/parisc/include/uapi/asm/mman.h b/arch/parisc/include/uapi/asm/mman.h
index 6cb8db7..700d83f 100644
--- a/arch/parisc/include/uapi/asm/mman.h
+++ b/arch/parisc/include/uapi/asm/mman.h
@@ -40,9 +40,9 @@
#define MADV_SPACEAVAIL 5 /* insure that resources are reserved */
#define MADV_VPS_PURGE 6 /* Purge pages from VM page cache */
#define MADV_VPS_INHERIT 7 /* Inherit parents page size */
-#define MADV_FREE 8 /* free pages only if memory pressure */
/* common/generic parameters */
+#define MADV_FREE 8 /* free pages only if memory pressure */
#define MADV_REMOVE 9 /* remove these pages & resources */
#define MADV_DONTFORK 10 /* don't inherit across fork */
#define MADV_DOFORK 11 /* do inherit across fork */
diff --git a/arch/xtensa/include/uapi/asm/mman.h b/arch/xtensa/include/uapi/asm/mman.h
index 1b19f25..77eaca4 100644
--- a/arch/xtensa/include/uapi/asm/mman.h
+++ b/arch/xtensa/include/uapi/asm/mman.h
@@ -80,9 +80,9 @@
#define MADV_SEQUENTIAL 2 /* expect sequential page references */
#define MADV_WILLNEED 3 /* will need these pages */
#define MADV_DONTNEED 4 /* don't need these pages */
-#define MADV_FREE 5 /* free pages only if memory pressure */
/* common parameters: try to keep these consistent across architectures */
+#define MADV_FREE 8 /* free pages only if memory pressure */
#define MADV_REMOVE 9 /* remove these pages & resources */
#define MADV_DONTFORK 10 /* don't inherit across fork */
#define MADV_DOFORK 11 /* do inherit across fork */
diff --git a/include/uapi/asm-generic/mman-common.h b/include/uapi/asm-generic/mman-common.h
index 7a94102..8695959 100644
--- a/include/uapi/asm-generic/mman-common.h
+++ b/include/uapi/asm-generic/mman-common.h
@@ -34,9 +34,9 @@
#define MADV_SEQUENTIAL 2 /* expect sequential page references */
#define MADV_WILLNEED 3 /* will need these pages */
#define MADV_DONTNEED 4 /* don't need these pages */
-#define MADV_FREE 5 /* free pages only if memory pressure */
/* common parameters: try to keep these consistent across architectures */
+#define MADV_FREE 8 /* free pages only if memory pressure */
#define MADV_REMOVE 9 /* remove these pages & resources */
#define MADV_DONTFORK 10 /* don't inherit across fork */
#define MADV_DOFORK 11 /* do inherit across fork */
--
1.9.3
^ permalink raw reply related
* [PATCH v10 04/20] vfio: amba: VFIO support for AMBA devices
From: Antonios Motakis @ 2014-12-09 14:18 UTC (permalink / raw)
To: kvmarm-FPEHb7Xf0XXUo1n7N8X6UoWGPAHP3yOg,
iommu-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA,
alex.williamson-H+wXaHxf7aLQT0dZR+AlfA
Cc: will.deacon-5wv7dgnIgG8, tech-lrHrjnjw1UfHK3s98zE1ajGjJy/sRE9J,
christoffer.dall-QSEj5FYQhm4dnm+yROfE0A,
eric.auger-QSEj5FYQhm4dnm+yROfE0A,
kim.phillips-KZfg59tc24xl57MIdRCFDg, marc.zyngier-5wv7dgnIgG8,
Antonios Motakis, open list, open list:VFIO DRIVER,
open list:ABI/API
In-Reply-To: <1417109580-10505-5-git-send-email-a.motakis-lrHrjnjw1UfHK3s98zE1ajGjJy/sRE9J@public.gmane.org>
Add support for discovering AMBA devices with VFIO and handle them
similarly to Linux platform devices.
Signed-off-by: Antonios Motakis <a.motakis-lrHrjnjw1UfHK3s98zE1ajGjJy/sRE9J@public.gmane.org>
---
drivers/vfio/platform/vfio_amba.c | 115 ++++++++++++++++++++++++++++++++++++++
include/uapi/linux/vfio.h | 1 +
2 files changed, 116 insertions(+)
create mode 100644 drivers/vfio/platform/vfio_amba.c
diff --git a/drivers/vfio/platform/vfio_amba.c b/drivers/vfio/platform/vfio_amba.c
new file mode 100644
index 0000000..ff0331f
--- /dev/null
+++ b/drivers/vfio/platform/vfio_amba.c
@@ -0,0 +1,115 @@
+/*
+ * Copyright (C) 2013 - Virtual Open Systems
+ * Author: Antonios Motakis <a.motakis-lrHrjnjw1UfHK3s98zE1ajGjJy/sRE9J@public.gmane.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License, version 2, as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/vfio.h>
+#include <linux/amba/bus.h>
+
+#include "vfio_platform_private.h"
+
+#define DRIVER_VERSION "0.10"
+#define DRIVER_AUTHOR "Antonios Motakis <a.motakis-lrHrjnjw1UfHK3s98zE1ajGjJy/sRE9J@public.gmane.org>"
+#define DRIVER_DESC "VFIO for AMBA devices - User Level meta-driver"
+
+/* probing devices from the AMBA bus */
+
+static struct resource *get_amba_resource(struct vfio_platform_device *vdev,
+ int i)
+{
+ struct amba_device *adev = (struct amba_device *) vdev->opaque;
+
+ if (i == 0)
+ return &adev->res;
+
+ return NULL;
+}
+
+static int get_amba_irq(struct vfio_platform_device *vdev, int i)
+{
+ struct amba_device *adev = (struct amba_device *) vdev->opaque;
+ int ret = 0;
+
+ if (i < AMBA_NR_IRQS)
+ ret = adev->irq[i];
+
+ /* zero is an unset IRQ for AMBA devices */
+ return ret ? ret : -ENXIO;
+}
+
+static int vfio_amba_probe(struct amba_device *adev, const struct amba_id *id)
+{
+ struct vfio_platform_device *vdev;
+ int ret;
+
+ vdev = kzalloc(sizeof(*vdev), GFP_KERNEL);
+ if (!vdev)
+ return -ENOMEM;
+
+ vdev->name = kasprintf(GFP_KERNEL, "vfio-amba-%08x", adev->periphid);
+ if (!vdev->name) {
+ kfree(vdev);
+ return -ENOMEM;
+ }
+
+ vdev->opaque = (void *) adev;
+ vdev->flags = VFIO_DEVICE_FLAGS_AMBA;
+ vdev->get_resource = get_amba_resource;
+ vdev->get_irq = get_amba_irq;
+
+ ret = vfio_platform_probe_common(vdev, &adev->dev);
+ if (ret) {
+ kfree(vdev->name);
+ kfree(vdev);
+ }
+
+ return ret;
+}
+
+static int vfio_amba_remove(struct amba_device *adev)
+{
+ struct vfio_platform_device *vdev;
+
+ vdev = vfio_platform_remove_common(&adev->dev);
+ if (vdev) {
+ kfree(vdev->name);
+ kfree(vdev);
+ return 0;
+ }
+
+ return -EINVAL;
+}
+
+static struct amba_id pl330_ids[] = {
+ { 0, 0 },
+};
+
+MODULE_DEVICE_TABLE(amba, pl330_ids);
+
+static struct amba_driver vfio_amba_driver = {
+ .probe = vfio_amba_probe,
+ .remove = vfio_amba_remove,
+ .id_table = pl330_ids,
+ .drv = {
+ .name = "vfio-amba",
+ .owner = THIS_MODULE,
+ },
+};
+
+module_amba_driver(vfio_amba_driver);
+
+MODULE_VERSION(DRIVER_VERSION);
+MODULE_LICENSE("GPL v2");
+MODULE_AUTHOR(DRIVER_AUTHOR);
+MODULE_DESCRIPTION(DRIVER_DESC);
diff --git a/include/uapi/linux/vfio.h b/include/uapi/linux/vfio.h
index 4e93a97..544d3d8 100644
--- a/include/uapi/linux/vfio.h
+++ b/include/uapi/linux/vfio.h
@@ -160,6 +160,7 @@ struct vfio_device_info {
#define VFIO_DEVICE_FLAGS_RESET (1 << 0) /* Device supports reset */
#define VFIO_DEVICE_FLAGS_PCI (1 << 1) /* vfio-pci device */
#define VFIO_DEVICE_FLAGS_PLATFORM (1 << 2) /* vfio-platform device */
+#define VFIO_DEVICE_FLAGS_AMBA (1 << 3) /* vfio-amba device */
__u32 num_regions; /* Max region index + 1 */
__u32 num_irqs; /* Max IRQ index + 1 */
};
--
2.1.3
^ permalink raw reply related
* Re: [PATCH v5] media: platform: add VPFE capture driver support for AM437X
From: Hans Verkuil @ 2014-12-09 11:13 UTC (permalink / raw)
To: Lad, Prabhakar, LMML, devicetree-u79uwXL29TY76Z2rM5mHXA,
linux-api
Cc: LKML, Hans Verkuil
In-Reply-To: <1418077306-2493-1-git-send-email-prabhakar.csengg-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
On 12/08/14 23:21, Lad, Prabhakar wrote:
> From: Benoit Parrot <bparrot-l0cyMroinI0@public.gmane.org>
>
> This patch adds Video Processing Front End (VPFE) driver for
> AM437X family of devices
> Driver supports the following:
> - V4L2 API using MMAP buffer access based on videobuf2 api
> - Asynchronous sensor/decoder sub device registration
> - DT support
>
> Signed-off-by: Benoit Parrot <bparrot-l0cyMroinI0@public.gmane.org>
> Signed-off-by: Darren Etheridge <detheridge-l0cyMroinI0@public.gmane.org>
> Signed-off-by: Lad, Prabhakar <prabhakar.csengg-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
> ---
> Changes for v5:
> 1: Fixed review comments pointed out by Hans, fixing race condition.
>
> v4l2-compliance output:
Thanks!
<snip>
> ----------------------
>
> diff --git a/drivers/media/platform/am437x/am437x-vpfe.c b/drivers/media/platform/am437x/am437x-vpfe.c
> new file mode 100644
> index 0000000..c2b29a2
> --- /dev/null
> +++ b/drivers/media/platform/am437x/am437x-vpfe.c
> +/*
> + * vpfe_release : This function is based on the vb2_fop_release
> + * helper function.
> + * It has been augmented to handle module power management,
> + * by disabling/enabling h/w module fcntl clock when necessary.
> + */
> +static int vpfe_release(struct file *file)
> +{
> + struct vpfe_device *vpfe = video_drvdata(file);
> + bool close = v4l2_fh_is_singular_file(file);
> + int ret;
> +
> + vpfe_dbg(2, vpfe, "vpfe_release\n");
> +
> + mutex_lock(&vpfe->lock);
The v4l2_fh_is_singular_file() call should be inside the lock as well.
So:
close = v4l2_fh_is_singular_file(file);
> +
> + ret = _vb2_fop_release(file, NULL);
> + if (close)
> + vpfe_ccdc_close(&vpfe->ccdc, vpfe->pdev);
> +
> + mutex_unlock(&vpfe->lock);
> +
> + return ret;
> +}
> +
> +/*
> + * vpfe_open : This function is based on the v4l2_fh_open helper function.
> + * It has been augmented to handle module power management,
> + * by disabling/enabling h/w module fcntl clock when necessary.
> + */
> +static int vpfe_open(struct file *file)
> +{
> + struct vpfe_device *vpfe = video_drvdata(file);
> + int ret;
> +
> + ret = v4l2_fh_open(file);
Same here, v4l2_fh_open should be inside the lock.
> + if (ret) {
> + vpfe_err(vpfe, "v4l2_fh_open failed\n");
> + return ret;
> + }
> +
> + mutex_lock(&vpfe->lock);
So:
ret = v4l2_fh_open(file);
if (ret) {
vpfe_err(vpfe, "v4l2_fh_open failed\n");
goto unlock;
}
> +
> + if (!v4l2_fh_is_singular_file(file))
> + goto unlock;
> +
> + if (vpfe_initialize_device(vpfe)) {
> + v4l2_fh_release(file);
> + ret = -ENODEV;
> + }
> +
> +unlock:
> + mutex_unlock(&vpfe->lock);
> + return ret;
> +}
Regards,
Hans
^ permalink raw reply
* [v8 5/5] ext4: cleanup inode flag definitions
From: Li Xi @ 2014-12-09 5:22 UTC (permalink / raw)
To: linux-fsdevel-u79uwXL29TY76Z2rM5mHXA,
linux-ext4-u79uwXL29TY76Z2rM5mHXA,
linux-api-u79uwXL29TY76Z2rM5mHXA, tytso-3s7WtUTddSA,
adilger-m1MBpc4rdrD3fQ9qLvQP4Q, jack-AlSwsSmVLrQ,
viro-RmSDqhL/yNMiFSDQTTA3OLVCufUGDwFn, hch-wEGCiKHe2LqWVfeAwA7xHQ,
dmonakhov-GEFAQzZX7r8dnm+yROfE0A
In-Reply-To: <1418102548-5469-1-git-send-email-lixi-LfVdkaOWEx8@public.gmane.org>
The inode flags defined in uapi/linux/fs.h were migrated from
ext4.h. This patch changes the inode flag definitions in ext4.h
to VFS definitions to make the gaps between them clearer.
Signed-off-by: Li Xi <lixi-LfVdkaOWEx8@public.gmane.org>
---
fs/ext4/ext4.h | 50 +++++++++++++++++++++++++-------------------------
1 files changed, 25 insertions(+), 25 deletions(-)
diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h
index 43a2a88..bcc04c0 100644
--- a/fs/ext4/ext4.h
+++ b/fs/ext4/ext4.h
@@ -353,33 +353,33 @@ struct flex_groups {
/*
* Inode flags
*/
-#define EXT4_SECRM_FL 0x00000001 /* Secure deletion */
-#define EXT4_UNRM_FL 0x00000002 /* Undelete */
-#define EXT4_COMPR_FL 0x00000004 /* Compress file */
-#define EXT4_SYNC_FL 0x00000008 /* Synchronous updates */
-#define EXT4_IMMUTABLE_FL 0x00000010 /* Immutable file */
-#define EXT4_APPEND_FL 0x00000020 /* writes to file may only append */
-#define EXT4_NODUMP_FL 0x00000040 /* do not dump file */
-#define EXT4_NOATIME_FL 0x00000080 /* do not update atime */
+#define EXT4_SECRM_FL FS_SECRM_FL /* Secure deletion */
+#define EXT4_UNRM_FL FS_UNRM_FL /* Undelete */
+#define EXT4_COMPR_FL FS_COMPR_FL /* Compress file */
+#define EXT4_SYNC_FL FS_SYNC_FL /* Synchronous updates */
+#define EXT4_IMMUTABLE_FL FS_IMMUTABLE_FL /* Immutable file */
+#define EXT4_APPEND_FL FS_APPEND_FL /* writes to file may only append */
+#define EXT4_NODUMP_FL FS_NODUMP_FL /* do not dump file */
+#define EXT4_NOATIME_FL FS_NOATIME_FL /* do not update atime */
/* Reserved for compression usage... */
-#define EXT4_DIRTY_FL 0x00000100
-#define EXT4_COMPRBLK_FL 0x00000200 /* One or more compressed clusters */
-#define EXT4_NOCOMPR_FL 0x00000400 /* Don't compress */
-#define EXT4_ECOMPR_FL 0x00000800 /* Compression error */
+#define EXT4_DIRTY_FL FS_DIRTY_FL
+#define EXT4_COMPRBLK_FL FS_COMPRBLK_FL /* One or more compressed clusters */
+#define EXT4_NOCOMPR_FL FS_NOCOMP_FL /* Don't compress */
+#define EXT4_ECOMPR_FL FS_ECOMPR_FL /* Compression error */
/* End compression flags --- maybe not all used */
-#define EXT4_INDEX_FL 0x00001000 /* hash-indexed directory */
-#define EXT4_IMAGIC_FL 0x00002000 /* AFS directory */
-#define EXT4_JOURNAL_DATA_FL 0x00004000 /* file data should be journaled */
-#define EXT4_NOTAIL_FL 0x00008000 /* file tail should not be merged */
-#define EXT4_DIRSYNC_FL 0x00010000 /* dirsync behaviour (directories only) */
-#define EXT4_TOPDIR_FL 0x00020000 /* Top of directory hierarchies*/
-#define EXT4_HUGE_FILE_FL 0x00040000 /* Set to each huge file */
-#define EXT4_EXTENTS_FL 0x00080000 /* Inode uses extents */
-#define EXT4_EA_INODE_FL 0x00200000 /* Inode used for large EA */
-#define EXT4_EOFBLOCKS_FL 0x00400000 /* Blocks allocated beyond EOF */
-#define EXT4_INLINE_DATA_FL 0x10000000 /* Inode has inline data. */
-#define EXT4_PROJINHERIT_FL FS_PROJINHERIT_FL /* Create with parents projid */
-#define EXT4_RESERVED_FL 0x80000000 /* reserved for ext4 lib */
+#define EXT4_INDEX_FL FS_INDEX_FL /* hash-indexed directory */
+#define EXT4_IMAGIC_FL FS_IMAGIC_FL /* AFS directory */
+#define EXT4_JOURNAL_DATA_FL FS_JOURNAL_DATA_FL /* file data should be journaled */
+#define EXT4_NOTAIL_FL FS_NOTAIL_FL /* file tail should not be merged */
+#define EXT4_DIRSYNC_FL FS_DIRSYNC_FL /* dirsync behaviour (directories only) */
+#define EXT4_TOPDIR_FL FS_TOPDIR_FL /* Top of directory hierarchies*/
+#define EXT4_HUGE_FILE_FL 0x00040000 /* Set to each huge file */
+#define EXT4_EXTENTS_FL FS_EXTENT_FL /* Inode uses extents */
+#define EXT4_EA_INODE_FL 0x00200000 /* Inode used for large EA */
+#define EXT4_EOFBLOCKS_FL 0x00400000 /* Blocks allocated beyond EOF */
+#define EXT4_INLINE_DATA_FL 0x10000000 /* Inode has inline data. */
+#define EXT4_PROJINHERIT_FL FS_PROJINHERIT_FL /* Create with parents projid */
+#define EXT4_RESERVED_FL FS_RESERVED_FL /* reserved for ext4 lib */
#define EXT4_FL_USER_VISIBLE 0x204BDFFF /* User visible flags */
#define EXT4_FL_USER_MODIFIABLE 0x204380FF /* User modifiable flags */
--
1.7.1
^ permalink raw reply related
* [v8 4/5] ext4: adds FS_IOC_FSSETXATTR/FS_IOC_FSGETXATTR interface support
From: Li Xi @ 2014-12-09 5:22 UTC (permalink / raw)
To: linux-fsdevel, linux-ext4, linux-api, tytso, adilger, jack, viro,
hch, dmonakhov
In-Reply-To: <1418102548-5469-1-git-send-email-lixi@ddn.com>
This patch adds FS_IOC_FSSETXATTR/FS_IOC_FSGETXATTR ioctl interface
support for ext4. The interface is kept consistent with
XFS_IOC_FSGETXATTR/XFS_IOC_FSGETXATTR.
Signed-off-by: Li Xi <lixi@ddn.com>
---
fs/ext4/ext4.h | 111 ++++++++++++++++
fs/ext4/ioctl.c | 330 +++++++++++++++++++++++++++++++++--------------
fs/xfs/xfs_fs.h | 47 +++-----
include/uapi/linux/fs.h | 58 ++++++++
4 files changed, 418 insertions(+), 128 deletions(-)
diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h
index 136e18c..43a2a88 100644
--- a/fs/ext4/ext4.h
+++ b/fs/ext4/ext4.h
@@ -384,6 +384,115 @@ struct flex_groups {
#define EXT4_FL_USER_VISIBLE 0x204BDFFF /* User visible flags */
#define EXT4_FL_USER_MODIFIABLE 0x204380FF /* User modifiable flags */
+/* Transfer internal flags to xflags */
+static inline __u32 ext4_iflags_to_xflags(unsigned long iflags)
+{
+ __u32 xflags = 0;
+
+ if (iflags & EXT4_SECRM_FL)
+ xflags |= FS_XFLAG_SECRM;
+ if (iflags & EXT4_UNRM_FL)
+ xflags |= FS_XFLAG_UNRM;
+ if (iflags & EXT4_COMPR_FL)
+ xflags |= FS_XFLAG_COMPR;
+ if (iflags & EXT4_SYNC_FL)
+ xflags |= FS_XFLAG_SYNC;
+ if (iflags & EXT4_IMMUTABLE_FL)
+ xflags |= FS_XFLAG_IMMUTABLE;
+ if (iflags & EXT4_APPEND_FL)
+ xflags |= FS_XFLAG_APPEND;
+ if (iflags & EXT4_NODUMP_FL)
+ xflags |= FS_XFLAG_NODUMP;
+ if (iflags & EXT4_NOATIME_FL)
+ xflags |= FS_XFLAG_NOATIME;
+ if (iflags & EXT4_COMPRBLK_FL)
+ xflags |= FS_XFLAG_COMPRBLK;
+ if (iflags & EXT4_NOCOMPR_FL)
+ xflags |= FS_XFLAG_NOCOMPR;
+ if (iflags & EXT4_ECOMPR_FL)
+ xflags |= FS_XFLAG_ECOMPR;
+ if (iflags & EXT4_INDEX_FL)
+ xflags |= FS_XFLAG_INDEX;
+ if (iflags & EXT4_IMAGIC_FL)
+ xflags |= FS_XFLAG_IMAGIC;
+ if (iflags & EXT4_JOURNAL_DATA_FL)
+ xflags |= FS_XFLAG_JOURNAL_DATA;
+ if (iflags & EXT4_NOTAIL_FL)
+ xflags |= FS_XFLAG_NOTAIL;
+ if (iflags & EXT4_DIRSYNC_FL)
+ xflags |= FS_XFLAG_DIRSYNC;
+ if (iflags & EXT4_TOPDIR_FL)
+ xflags |= FS_XFLAG_TOPDIR;
+ if (iflags & EXT4_HUGE_FILE_FL)
+ xflags |= FS_XFLAG_HUGE_FILE;
+ if (iflags & EXT4_EXTENTS_FL)
+ xflags |= FS_XFLAG_EXTENTS;
+ if (iflags & EXT4_EA_INODE_FL)
+ xflags |= FS_XFLAG_EA_INODE;
+ if (iflags & EXT4_EOFBLOCKS_FL)
+ xflags |= FS_XFLAG_EOFBLOCKS;
+ if (iflags & EXT4_INLINE_DATA_FL)
+ xflags |= FS_XFLAG_INLINE_DATA;
+ if (iflags & EXT4_PROJINHERIT_FL)
+ xflags |= FS_XFLAG_PROJINHERIT;
+ return xflags;
+}
+
+/* Transfer xflags flags to internal */
+static inline unsigned long ext4_xflags_to_iflags(__u32 xflags)
+{
+ unsigned long iflags = 0;
+
+ if (xflags & FS_XFLAG_SECRM)
+ iflags |= EXT4_SECRM_FL;
+ if (xflags & FS_XFLAG_UNRM)
+ iflags |= EXT4_UNRM_FL;
+ if (xflags & FS_XFLAG_COMPR)
+ iflags |= EXT4_COMPR_FL;
+ if (xflags & FS_XFLAG_SYNC)
+ iflags |= EXT4_SYNC_FL;
+ if (xflags & FS_XFLAG_IMMUTABLE)
+ iflags |= EXT4_IMMUTABLE_FL;
+ if (xflags & FS_XFLAG_APPEND)
+ iflags |= EXT4_APPEND_FL;
+ if (xflags & FS_XFLAG_NODUMP)
+ iflags |= EXT4_NODUMP_FL;
+ if (xflags & FS_XFLAG_NOATIME)
+ iflags |= EXT4_NOATIME_FL;
+ if (xflags & FS_XFLAG_COMPRBLK)
+ iflags |= EXT4_COMPRBLK_FL;
+ if (xflags & FS_XFLAG_NOCOMPR)
+ iflags |= EXT4_NOCOMPR_FL;
+ if (xflags & FS_XFLAG_ECOMPR)
+ iflags |= EXT4_ECOMPR_FL;
+ if (xflags & FS_XFLAG_INDEX)
+ iflags |= EXT4_INDEX_FL;
+ if (xflags & FS_XFLAG_IMAGIC)
+ iflags |= EXT4_IMAGIC_FL;
+ if (xflags & FS_XFLAG_JOURNAL_DATA)
+ iflags |= EXT4_JOURNAL_DATA_FL;
+ if (xflags & FS_XFLAG_IMAGIC)
+ iflags |= FS_XFLAG_NOTAIL;
+ if (xflags & FS_XFLAG_DIRSYNC)
+ iflags |= EXT4_DIRSYNC_FL;
+ if (xflags & FS_XFLAG_TOPDIR)
+ iflags |= EXT4_TOPDIR_FL;
+ if (xflags & FS_XFLAG_HUGE_FILE)
+ iflags |= EXT4_HUGE_FILE_FL;
+ if (xflags & FS_XFLAG_EXTENTS)
+ iflags |= EXT4_EXTENTS_FL;
+ if (xflags & FS_XFLAG_EA_INODE)
+ iflags |= EXT4_EA_INODE_FL;
+ if (xflags & FS_XFLAG_EOFBLOCKS)
+ iflags |= EXT4_EOFBLOCKS_FL;
+ if (xflags & FS_XFLAG_INLINE_DATA)
+ iflags |= EXT4_INLINE_DATA_FL;
+ if (xflags & FS_XFLAG_PROJINHERIT)
+ iflags |= EXT4_PROJINHERIT_FL;
+
+ return iflags;
+}
+
/* Flags that should be inherited by new inodes from their parent. */
#define EXT4_FL_INHERITED (EXT4_SECRM_FL | EXT4_UNRM_FL | EXT4_COMPR_FL |\
EXT4_SYNC_FL | EXT4_NODUMP_FL | EXT4_NOATIME_FL |\
@@ -606,6 +715,8 @@ enum {
#define EXT4_IOC_RESIZE_FS _IOW('f', 16, __u64)
#define EXT4_IOC_SWAP_BOOT _IO('f', 17)
#define EXT4_IOC_PRECACHE_EXTENTS _IO('f', 18)
+#define EXT4_IOC_FSGETXATTR FS_IOC_FSGETXATTR
+#define EXT4_IOC_FSSETXATTR FS_IOC_FSSETXATTR
#if defined(__KERNEL__) && defined(CONFIG_COMPAT)
/*
diff --git a/fs/ext4/ioctl.c b/fs/ext4/ioctl.c
index f58a0d1..8332476 100644
--- a/fs/ext4/ioctl.c
+++ b/fs/ext4/ioctl.c
@@ -14,6 +14,8 @@
#include <linux/compat.h>
#include <linux/mount.h>
#include <linux/file.h>
+#include <linux/quotaops.h>
+#include <linux/quota.h>
#include <asm/uaccess.h>
#include "ext4_jbd2.h"
#include "ext4.h"
@@ -196,126 +198,220 @@ journal_err_out:
return err;
}
-long ext4_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
+static int ext4_ioctl_setflags(struct file *filp, unsigned int flags)
{
struct inode *inode = file_inode(filp);
- struct super_block *sb = inode->i_sb;
struct ext4_inode_info *ei = EXT4_I(inode);
- unsigned int flags;
+ handle_t *handle = NULL;
+ int err, migrate = 0;
+ struct ext4_iloc iloc;
+ unsigned int oldflags, mask, i;
+ unsigned int jflag;
- ext4_debug("cmd = %u, arg = %lu\n", cmd, arg);
+ if (!inode_owner_or_capable(inode))
+ return -EACCES;
- switch (cmd) {
- case EXT4_IOC_GETFLAGS:
- ext4_get_inode_flags(ei);
- flags = ei->i_flags & EXT4_FL_USER_VISIBLE;
- return put_user(flags, (int __user *) arg);
- case EXT4_IOC_SETFLAGS: {
- handle_t *handle = NULL;
- int err, migrate = 0;
- struct ext4_iloc iloc;
- unsigned int oldflags, mask, i;
- unsigned int jflag;
+ err = mnt_want_write_file(filp);
+ if (err)
+ return err;
- if (!inode_owner_or_capable(inode))
- return -EACCES;
+ flags = ext4_mask_flags(inode->i_mode, flags);
- if (get_user(flags, (int __user *) arg))
- return -EFAULT;
+ err = -EPERM;
+ mutex_lock(&inode->i_mutex);
+ /* Is it quota file? Do not allow user to mess with it */
+ if (IS_NOQUOTA(inode))
+ goto flags_out;
- err = mnt_want_write_file(filp);
- if (err)
- return err;
+ oldflags = ei->i_flags;
- flags = ext4_mask_flags(inode->i_mode, flags);
+ /* The JOURNAL_DATA flag is modifiable only by root */
+ jflag = flags & EXT4_JOURNAL_DATA_FL;
- err = -EPERM;
- mutex_lock(&inode->i_mutex);
- /* Is it quota file? Do not allow user to mess with it */
- if (IS_NOQUOTA(inode))
+ /*
+ * The IMMUTABLE and APPEND_ONLY flags can only be changed by
+ * the relevant capability.
+ *
+ * This test looks nicer. Thanks to Pauline Middelink
+ */
+ if ((flags ^ oldflags) & (EXT4_APPEND_FL | EXT4_IMMUTABLE_FL)) {
+ if (!capable(CAP_LINUX_IMMUTABLE))
goto flags_out;
+ }
- oldflags = ei->i_flags;
-
- /* The JOURNAL_DATA flag is modifiable only by root */
- jflag = flags & EXT4_JOURNAL_DATA_FL;
-
- /*
- * The IMMUTABLE and APPEND_ONLY flags can only be changed by
- * the relevant capability.
- *
- * This test looks nicer. Thanks to Pauline Middelink
- */
- if ((flags ^ oldflags) & (EXT4_APPEND_FL | EXT4_IMMUTABLE_FL)) {
- if (!capable(CAP_LINUX_IMMUTABLE))
- goto flags_out;
- }
-
- /*
- * The JOURNAL_DATA flag can only be changed by
- * the relevant capability.
- */
- if ((jflag ^ oldflags) & (EXT4_JOURNAL_DATA_FL)) {
- if (!capable(CAP_SYS_RESOURCE))
- goto flags_out;
- }
- if ((flags ^ oldflags) & EXT4_EXTENTS_FL)
- migrate = 1;
-
+ /*
+ * The JOURNAL_DATA flag can only be changed by
+ * the relevant capability.
+ */
+ if ((jflag ^ oldflags) & (EXT4_JOURNAL_DATA_FL)) {
+ if (!capable(CAP_SYS_RESOURCE))
+ goto flags_out;
+ }
+ if ((flags ^ oldflags) & EXT4_EXTENTS_FL)
+ migrate = 1;
if (flags & EXT4_EOFBLOCKS_FL) {
- /* we don't support adding EOFBLOCKS flag */
- if (!(oldflags & EXT4_EOFBLOCKS_FL)) {
- err = -EOPNOTSUPP;
- goto flags_out;
- }
- } else if (oldflags & EXT4_EOFBLOCKS_FL)
- ext4_truncate(inode);
-
- handle = ext4_journal_start(inode, EXT4_HT_INODE, 1);
- if (IS_ERR(handle)) {
- err = PTR_ERR(handle);
+ /* we don't support adding EOFBLOCKS flag */
+ if (!(oldflags & EXT4_EOFBLOCKS_FL)) {
+ err = -EOPNOTSUPP;
goto flags_out;
}
- if (IS_SYNC(inode))
- ext4_handle_sync(handle);
- err = ext4_reserve_inode_write(handle, inode, &iloc);
- if (err)
- goto flags_err;
-
- for (i = 0, mask = 1; i < 32; i++, mask <<= 1) {
- if (!(mask & EXT4_FL_USER_MODIFIABLE))
- continue;
- if (mask & flags)
- ext4_set_inode_flag(inode, i);
- else
- ext4_clear_inode_flag(inode, i);
- }
+ } else if (oldflags & EXT4_EOFBLOCKS_FL)
+ ext4_truncate(inode);
- ext4_set_inode_flags(inode);
- inode->i_ctime = ext4_current_time(inode);
+ handle = ext4_journal_start(inode, EXT4_HT_INODE, 1);
+ if (IS_ERR(handle)) {
+ err = PTR_ERR(handle);
+ goto flags_out;
+ }
+ if (IS_SYNC(inode))
+ ext4_handle_sync(handle);
+ err = ext4_reserve_inode_write(handle, inode, &iloc);
+ if (err)
+ goto flags_err;
+
+ for (i = 0, mask = 1; i < 32; i++, mask <<= 1) {
+ if (!(mask & EXT4_FL_USER_MODIFIABLE))
+ continue;
+ if (mask & flags)
+ ext4_set_inode_flag(inode, i);
+ else
+ ext4_clear_inode_flag(inode, i);
+ }
- err = ext4_mark_iloc_dirty(handle, inode, &iloc);
-flags_err:
- ext4_journal_stop(handle);
- if (err)
- goto flags_out;
+ ext4_set_inode_flags(inode);
+ inode->i_ctime = ext4_current_time(inode);
- if ((jflag ^ oldflags) & (EXT4_JOURNAL_DATA_FL))
- err = ext4_change_inode_journal_flag(inode, jflag);
- if (err)
- goto flags_out;
- if (migrate) {
- if (flags & EXT4_EXTENTS_FL)
- err = ext4_ext_migrate(inode);
- else
- err = ext4_ind_migrate(inode);
- }
+ err = ext4_mark_iloc_dirty(handle, inode, &iloc);
+flags_err:
+ ext4_journal_stop(handle);
+ if (err)
+ goto flags_out;
+
+ if ((jflag ^ oldflags) & (EXT4_JOURNAL_DATA_FL))
+ err = ext4_change_inode_journal_flag(inode, jflag);
+ if (err)
+ goto flags_out;
+ if (migrate) {
+ if (flags & EXT4_EXTENTS_FL)
+ err = ext4_ext_migrate(inode);
+ else
+ err = ext4_ind_migrate(inode);
+ }
flags_out:
- mutex_unlock(&inode->i_mutex);
- mnt_drop_write_file(filp);
+ mutex_unlock(&inode->i_mutex);
+ mnt_drop_write_file(filp);
+ return err;
+}
+
+static int ext4_ioctl_setproject(struct file *filp, __u32 projid)
+{
+ struct inode *inode = file_inode(filp);
+ struct super_block *sb = inode->i_sb;
+ struct ext4_inode_info *ei = EXT4_I(inode);
+ int err;
+ handle_t *handle;
+ kprojid_t kprojid;
+ struct ext4_iloc iloc;
+ struct ext4_inode *raw_inode;
+
+ struct dquot *transfer_to[EXT4_MAXQUOTAS] = { };
+
+ /* Make sure caller can change project. */
+ if (!capable(CAP_SYS_ADMIN))
+ return -EACCES;
+
+ if (projid != EXT4_DEF_PROJID
+ && !EXT4_HAS_RO_COMPAT_FEATURE(sb,
+ EXT4_FEATURE_RO_COMPAT_PROJECT))
+ return -EOPNOTSUPP;
+
+ if (!EXT4_HAS_RO_COMPAT_FEATURE(sb,
+ EXT4_FEATURE_RO_COMPAT_PROJECT)) {
+ BUG_ON(__kprojid_val(EXT4_I(inode)->i_projid)
+ != EXT4_DEF_PROJID);
+ if (projid != EXT4_DEF_PROJID)
+ return -EOPNOTSUPP;
+ else
+ return 0;
+ }
+
+ kprojid = make_kprojid(&init_user_ns, (projid_t)projid);
+
+ if (projid_eq(kprojid, EXT4_I(inode)->i_projid))
+ return 0;
+
+ err = mnt_want_write_file(filp);
+ if (err)
return err;
+
+ err = -EPERM;
+ mutex_lock(&inode->i_mutex);
+ /* Is it quota file? Do not allow user to mess with it */
+ if (IS_NOQUOTA(inode))
+ goto project_out;
+
+ dquot_initialize(inode);
+
+ handle = ext4_journal_start(inode, EXT4_HT_QUOTA,
+ EXT4_QUOTA_INIT_BLOCKS(sb) +
+ EXT4_QUOTA_DEL_BLOCKS(sb) + 3);
+ if (IS_ERR(handle)) {
+ err = PTR_ERR(handle);
+ goto project_out;
+ }
+
+ err = ext4_reserve_inode_write(handle, inode, &iloc);
+ if (err)
+ goto project_stop;
+
+ raw_inode = ext4_raw_inode(&iloc);
+ if ((EXT4_INODE_SIZE(sb) <=
+ EXT4_GOOD_OLD_INODE_SIZE) ||
+ (!EXT4_FITS_IN_INODE(raw_inode, ei, i_projid))) {
+ err = -EFBIG;
+ goto project_stop;
}
+
+ transfer_to[PRJQUOTA] = dqget(sb, make_kqid_projid(kprojid));
+ if (!transfer_to[PRJQUOTA])
+ goto project_set;
+
+ err = __dquot_transfer(inode, transfer_to);
+ dqput(transfer_to[PRJQUOTA]);
+ if (err)
+ goto project_stop;
+
+project_set:
+ EXT4_I(inode)->i_projid = kprojid;
+ inode->i_ctime = ext4_current_time(inode);
+ err = ext4_mark_iloc_dirty(handle, inode, &iloc);
+project_stop:
+ ext4_journal_stop(handle);
+project_out:
+ mutex_unlock(&inode->i_mutex);
+ mnt_drop_write_file(filp);
+ return err;
+}
+
+long ext4_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
+{
+ struct inode *inode = file_inode(filp);
+ struct super_block *sb = inode->i_sb;
+ struct ext4_inode_info *ei = EXT4_I(inode);
+ unsigned int flags;
+
+ ext4_debug("cmd = %u, arg = %lu\n", cmd, arg);
+
+ switch (cmd) {
+ case EXT4_IOC_GETFLAGS:
+ ext4_get_inode_flags(ei);
+ flags = ei->i_flags & EXT4_FL_USER_VISIBLE;
+ return put_user(flags, (int __user *) arg);
+ case EXT4_IOC_SETFLAGS:
+ if (get_user(flags, (int __user *) arg))
+ return -EFAULT;
+ return ext4_ioctl_setflags(filp, flags);
case EXT4_IOC_GETVERSION:
case EXT4_IOC_GETVERSION_OLD:
return put_user(inode->i_generation, (int __user *) arg);
@@ -615,7 +711,45 @@ resizefs_out:
}
case EXT4_IOC_PRECACHE_EXTENTS:
return ext4_ext_precache(inode);
+ case EXT4_IOC_FSGETXATTR:
+ {
+ struct fsxattr fa;
+
+ memset(&fa, 0, sizeof(struct fsxattr));
+
+ ext4_get_inode_flags(ei);
+ fa.fsx_xflags = ext4_iflags_to_xflags(ei->i_flags & EXT4_FL_USER_VISIBLE);
+
+ if (EXT4_HAS_RO_COMPAT_FEATURE(inode->i_sb,
+ EXT4_FEATURE_RO_COMPAT_PROJECT)) {
+ fa.fsx_projid = (__u32)from_kprojid(&init_user_ns,
+ EXT4_I(inode)->i_projid);
+ }
+
+ if (copy_to_user((struct fsxattr __user *)arg,
+ &fa, sizeof(fa)))
+ return -EFAULT;
+ return 0;
+ }
+ case EXT4_IOC_FSSETXATTR:
+ {
+ struct fsxattr fa;
+ int err;
+
+ if (copy_from_user(&fa, (struct fsxattr __user *)arg,
+ sizeof(fa)))
+ return -EFAULT;
+ err = ext4_ioctl_setflags(filp, ext4_xflags_to_iflags(fa.fsx_xflags));
+ if (err)
+ return err;
+
+ err = ext4_ioctl_setproject(filp, fa.fsx_projid);
+ if (err)
+ return err;
+
+ return 0;
+ }
default:
return -ENOTTY;
}
diff --git a/fs/xfs/xfs_fs.h b/fs/xfs/xfs_fs.h
index 18dc721..64c7ae6 100644
--- a/fs/xfs/xfs_fs.h
+++ b/fs/xfs/xfs_fs.h
@@ -36,38 +36,25 @@ struct dioattr {
#endif
/*
- * Structure for XFS_IOC_FSGETXATTR[A] and XFS_IOC_FSSETXATTR.
- */
-#ifndef HAVE_FSXATTR
-struct fsxattr {
- __u32 fsx_xflags; /* xflags field value (get/set) */
- __u32 fsx_extsize; /* extsize field value (get/set)*/
- __u32 fsx_nextents; /* nextents field value (get) */
- __u32 fsx_projid; /* project identifier (get/set) */
- unsigned char fsx_pad[12];
-};
-#endif
-
-/*
* Flags for the bs_xflags/fsx_xflags field
* There should be a one-to-one correspondence between these flags and the
* XFS_DIFLAG_s.
*/
-#define XFS_XFLAG_REALTIME 0x00000001 /* data in realtime volume */
-#define XFS_XFLAG_PREALLOC 0x00000002 /* preallocated file extents */
-#define XFS_XFLAG_IMMUTABLE 0x00000008 /* file cannot be modified */
-#define XFS_XFLAG_APPEND 0x00000010 /* all writes append */
-#define XFS_XFLAG_SYNC 0x00000020 /* all writes synchronous */
-#define XFS_XFLAG_NOATIME 0x00000040 /* do not update access time */
-#define XFS_XFLAG_NODUMP 0x00000080 /* do not include in backups */
-#define XFS_XFLAG_RTINHERIT 0x00000100 /* create with rt bit set */
-#define XFS_XFLAG_PROJINHERIT 0x00000200 /* create with parents projid */
-#define XFS_XFLAG_NOSYMLINKS 0x00000400 /* disallow symlink creation */
-#define XFS_XFLAG_EXTSIZE 0x00000800 /* extent size allocator hint */
-#define XFS_XFLAG_EXTSZINHERIT 0x00001000 /* inherit inode extent size */
-#define XFS_XFLAG_NODEFRAG 0x00002000 /* do not defragment */
-#define XFS_XFLAG_FILESTREAM 0x00004000 /* use filestream allocator */
-#define XFS_XFLAG_HASATTR 0x80000000 /* no DIFLAG for this */
+#define XFS_XFLAG_REALTIME FS_XFLAG_REALTIME /* data in realtime volume */
+#define XFS_XFLAG_PREALLOC FS_XFLAG_PREALLOC /* preallocated file extents */
+#define XFS_XFLAG_IMMUTABLE FS_XFLAG_IMMUTABLE /* file cannot be modified */
+#define XFS_XFLAG_APPEND FS_XFLAG_APPEND /* all writes append */
+#define XFS_XFLAG_SYNC FS_XFLAG_SYNC /* all writes synchronous */
+#define XFS_XFLAG_NOATIME FS_XFLAG_NOATIME /* do not update access time */
+#define XFS_XFLAG_NODUMP FS_XFLAG_NODUMP /* do not include in backups */
+#define XFS_XFLAG_RTINHERIT FS_XFLAG_RTINHERIT /* create with rt bit set */
+#define XFS_XFLAG_PROJINHERIT FS_XFLAG_PROJINHERIT /* create with parents projid */
+#define XFS_XFLAG_NOSYMLINKS FS_XFLAG_NOSYMLINKS /* disallow symlink creation */
+#define XFS_XFLAG_EXTSIZE FS_XFLAG_EXTSIZE /* extent size allocator hint */
+#define XFS_XFLAG_EXTSZINHERIT FS_XFLAG_EXTSZINHERIT /* inherit inode extent size */
+#define XFS_XFLAG_NODEFRAG FS_XFLAG_NODEFRAG /* do not defragment */
+#define XFS_XFLAG_FILESTREAM FS_XFLAG_FILESTREAM /* use filestream allocator */
+#define XFS_XFLAG_HASATTR FS_XFLAG_HASATTR /* no DIFLAG for this */
/*
* Structure for XFS_IOC_GETBMAP.
@@ -503,8 +490,8 @@ typedef struct xfs_swapext
#define XFS_IOC_ALLOCSP _IOW ('X', 10, struct xfs_flock64)
#define XFS_IOC_FREESP _IOW ('X', 11, struct xfs_flock64)
#define XFS_IOC_DIOINFO _IOR ('X', 30, struct dioattr)
-#define XFS_IOC_FSGETXATTR _IOR ('X', 31, struct fsxattr)
-#define XFS_IOC_FSSETXATTR _IOW ('X', 32, struct fsxattr)
+#define XFS_IOC_FSGETXATTR FS_IOC_FSGETXATTR
+#define XFS_IOC_FSSETXATTR FS_IOC_FSSETXATTR
#define XFS_IOC_ALLOCSP64 _IOW ('X', 36, struct xfs_flock64)
#define XFS_IOC_FREESP64 _IOW ('X', 37, struct xfs_flock64)
#define XFS_IOC_GETBMAP _IOWR('X', 38, struct getbmap)
diff --git a/include/uapi/linux/fs.h b/include/uapi/linux/fs.h
index fcbf647..872fed5 100644
--- a/include/uapi/linux/fs.h
+++ b/include/uapi/linux/fs.h
@@ -58,6 +58,62 @@ struct inodes_stat_t {
long dummy[5]; /* padding for sysctl ABI compatibility */
};
+/*
+ * Extend attribute flags. These should be or-ed together to figure out what
+ * is valid.
+ */
+#define FSX_XFLAGS (1 << 0)
+#define FSX_EXTSIZE (1 << 1)
+#define FSX_NEXTENTS (1 << 2)
+#define FSX_PROJID (1 << 3)
+
+/*
+ * Structure for FS_IOC_FSGETXATTR and FS_IOC_FSSETXATTR.
+ */
+struct fsxattr {
+ __u32 fsx_xflags; /* xflags field value (get/set) */
+ __u32 fsx_extsize; /* extsize field value (get/set)*/
+ __u32 fsx_nextents; /* nextents field value (get) */
+ __u32 fsx_projid; /* project identifier (get/set) */
+ unsigned char fsx_pad[12];
+};
+
+/*
+ * Flags for the fsx_xflags field
+ */
+#define FS_XFLAG_REALTIME 0x00000001 /* data in realtime volume */
+#define FS_XFLAG_PREALLOC 0x00000002 /* preallocated file extents */
+#define FS_XFLAG_SECRM 0x00000004 /* secure deletion */
+#define FS_XFLAG_IMMUTABLE 0x00000008 /* file cannot be modified */
+#define FS_XFLAG_APPEND 0x00000010 /* all writes append */
+#define FS_XFLAG_SYNC 0x00000020 /* all writes synchronous */
+#define FS_XFLAG_NOATIME 0x00000040 /* do not update access time */
+#define FS_XFLAG_NODUMP 0x00000080 /* do not include in backups */
+#define FS_XFLAG_RTINHERIT 0x00000100 /* create with rt bit set */
+#define FS_XFLAG_PROJINHERIT 0x00000200 /* create with parents projid */
+#define FS_XFLAG_NOSYMLINKS 0x00000400 /* disallow symlink creation */
+#define FS_XFLAG_EXTSIZE 0x00000800 /* extent size allocator hint */
+#define FS_XFLAG_EXTSZINHERIT 0x00001000 /* inherit inode extent size */
+#define FS_XFLAG_NODEFRAG 0x00002000 /* do not defragment */
+#define FS_XFLAG_FILESTREAM 0x00004000 /* use filestream allocator */
+#define FS_XFLAG_UNRM 0x00008000 /* undelete */
+#define FS_XFLAG_COMPR 0x00010000 /* compress file */
+#define FS_XFLAG_COMPRBLK 0x00020000 /* one or more compressed clusters */
+#define FS_XFLAG_NOCOMPR 0x00040000 /* don't compress */
+#define FS_XFLAG_ECOMPR 0x00080000 /* compression error */
+#define FS_XFLAG_INDEX 0x00100000 /* hash-indexed directory */
+#define FS_XFLAG_IMAGIC 0x00200000 /* AFS directory */
+#define FS_XFLAG_JOURNAL_DATA 0x00400000 /* file data should be journaled */
+#define FS_XFLAG_NOTAIL 0x00800000 /* file tail should not be merged */
+#define FS_XFLAG_DIRSYNC 0x01000000 /* dirsync behaviour (directories only) */
+#define FS_XFLAG_TOPDIR 0x02000000 /* top of directory hierarchies*/
+#define FS_XFLAG_HUGE_FILE 0x04000000 /* set to each huge file */
+#define FS_XFLAG_EXTENTS 0x08000000 /* inode uses extents */
+#define FS_XFLAG_EA_INODE 0x10000000 /* inode used for large EA */
+#define FS_XFLAG_EOFBLOCKS 0x20000000 /* blocks allocated beyond EOF */
+#define FS_XFLAG_INLINE_DATA 0x40000000 /* inode has inline data. */
+#define FS_XFLAG_HASATTR 0x80000000 /* no DIFLAG for this */
+
#define NR_FILE 8192 /* this can well be larger on a larger system */
@@ -163,6 +219,8 @@ struct inodes_stat_t {
#define FS_IOC_GETVERSION _IOR('v', 1, long)
#define FS_IOC_SETVERSION _IOW('v', 2, long)
#define FS_IOC_FIEMAP _IOWR('f', 11, struct fiemap)
+#define FS_IOC_FSGETXATTR _IOR('f', 31, struct fsxattr)
+#define FS_IOC_FSSETXATTR _IOW('f', 32, struct fsxattr)
#define FS_IOC32_GETFLAGS _IOR('f', 1, int)
#define FS_IOC32_SETFLAGS _IOW('f', 2, int)
#define FS_IOC32_GETVERSION _IOR('v', 1, int)
--
1.7.1
^ permalink raw reply related
* [v8 3/5] ext4: adds project quota support
From: Li Xi @ 2014-12-09 5:22 UTC (permalink / raw)
To: linux-fsdevel, linux-ext4, linux-api, tytso, adilger, jack, viro,
hch, dmonakhov
In-Reply-To: <1418102548-5469-1-git-send-email-lixi@ddn.com>
This patch adds mount options for enabling/disabling project quota
accounting and enforcement. A new specific inode is also used for
project quota accounting.
Signed-off-by: Li Xi <lixi@ddn.com>
Signed-off-by: Dmitry Monakhov <dmonakhov@openvz.org>
Reviewed-by: Jan Kara <jack@suse.cz>
---
fs/ext4/ext4.h | 8 +++-
fs/ext4/super.c | 95 ++++++++++++++++++++++++++++++++++++++++++++++++------
2 files changed, 90 insertions(+), 13 deletions(-)
diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h
index 8bd1da9..136e18c 100644
--- a/fs/ext4/ext4.h
+++ b/fs/ext4/ext4.h
@@ -208,6 +208,7 @@ struct ext4_io_submit {
#define EXT4_UNDEL_DIR_INO 6 /* Undelete directory inode */
#define EXT4_RESIZE_INO 7 /* Reserved group descriptors inode */
#define EXT4_JOURNAL_INO 8 /* Journal inode */
+#define EXT4_PRJ_QUOTA_INO 9 /* Project quota inode */
/* First non-reserved inode for old ext4 filesystems */
#define EXT4_GOOD_OLD_FIRST_INO 11
@@ -982,6 +983,7 @@ struct ext4_inode_info {
#define EXT4_MOUNT_DIOREAD_NOLOCK 0x400000 /* Enable support for dio read nolocking */
#define EXT4_MOUNT_JOURNAL_CHECKSUM 0x800000 /* Journal checksums */
#define EXT4_MOUNT_JOURNAL_ASYNC_COMMIT 0x1000000 /* Journal Async Commit */
+#define EXT4_MOUNT_PRJQUOTA 0x2000000 /* Project quota support */
#define EXT4_MOUNT_DELALLOC 0x8000000 /* Delalloc support */
#define EXT4_MOUNT_DATA_ERR_ABORT 0x10000000 /* Abort on file data write */
#define EXT4_MOUNT_BLOCK_VALIDITY 0x20000000 /* Block validity checking */
@@ -1157,7 +1159,8 @@ struct ext4_super_block {
__le32 s_grp_quota_inum; /* inode for tracking group quota */
__le32 s_overhead_clusters; /* overhead blocks/clusters in fs */
__le32 s_backup_bgs[2]; /* groups with sparse_super2 SBs */
- __le32 s_reserved[106]; /* Padding to the end of the block */
+ __le32 s_prj_quota_inum; /* inode for tracking project quota */
+ __le32 s_reserved[105]; /* Padding to the end of the block */
__le32 s_checksum; /* crc32c(superblock) */
};
@@ -1172,7 +1175,7 @@ struct ext4_super_block {
#define EXT4_MF_FS_ABORTED 0x0002 /* Fatal error detected */
/* Number of quota types we support */
-#define EXT4_MAXQUOTAS 2
+#define EXT4_MAXQUOTAS 3
/*
* fourth extended-fs super-block data in memory
@@ -1364,6 +1367,7 @@ static inline int ext4_valid_inum(struct super_block *sb, unsigned long ino)
ino == EXT4_BOOT_LOADER_INO ||
ino == EXT4_JOURNAL_INO ||
ino == EXT4_RESIZE_INO ||
+ ino == EXT4_PRJ_QUOTA_INO ||
(ino >= EXT4_FIRST_INO(sb) &&
ino <= le32_to_cpu(EXT4_SB(sb)->s_es->s_inodes_count));
}
diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index 6b67795..f5d8ca2 100644
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -1035,8 +1035,8 @@ static int bdev_try_to_free_page(struct super_block *sb, struct page *page,
}
#ifdef CONFIG_QUOTA
-#define QTYPE2NAME(t) ((t) == USRQUOTA ? "user" : "group")
-#define QTYPE2MOPT(on, t) ((t) == USRQUOTA?((on)##USRJQUOTA):((on)##GRPJQUOTA))
+static char *quotatypes[] = INITQFNAMES;
+#define QTYPE2NAME(t) (quotatypes[t])
static int ext4_write_dquot(struct dquot *dquot);
static int ext4_acquire_dquot(struct dquot *dquot);
@@ -1128,10 +1128,11 @@ enum {
Opt_journal_path, Opt_journal_checksum, Opt_journal_async_commit,
Opt_abort, Opt_data_journal, Opt_data_ordered, Opt_data_writeback,
Opt_data_err_abort, Opt_data_err_ignore,
- Opt_usrjquota, Opt_grpjquota, Opt_offusrjquota, Opt_offgrpjquota,
+ Opt_usrjquota, Opt_grpjquota, Opt_prjjquota,
+ Opt_offusrjquota, Opt_offgrpjquota, Opt_offprjjquota,
Opt_jqfmt_vfsold, Opt_jqfmt_vfsv0, Opt_jqfmt_vfsv1, Opt_quota,
Opt_noquota, Opt_barrier, Opt_nobarrier, Opt_err,
- Opt_usrquota, Opt_grpquota, Opt_i_version,
+ Opt_usrquota, Opt_grpquota, Opt_prjquota, Opt_i_version,
Opt_stripe, Opt_delalloc, Opt_nodelalloc, Opt_mblk_io_submit,
Opt_nomblk_io_submit, Opt_block_validity, Opt_noblock_validity,
Opt_inode_readahead_blks, Opt_journal_ioprio,
@@ -1183,6 +1184,8 @@ static const match_table_t tokens = {
{Opt_usrjquota, "usrjquota=%s"},
{Opt_offgrpjquota, "grpjquota="},
{Opt_grpjquota, "grpjquota=%s"},
+ {Opt_offprjjquota, "prjjquota="},
+ {Opt_prjjquota, "prjjquota=%s"},
{Opt_jqfmt_vfsold, "jqfmt=vfsold"},
{Opt_jqfmt_vfsv0, "jqfmt=vfsv0"},
{Opt_jqfmt_vfsv1, "jqfmt=vfsv1"},
@@ -1190,6 +1193,7 @@ static const match_table_t tokens = {
{Opt_noquota, "noquota"},
{Opt_quota, "quota"},
{Opt_usrquota, "usrquota"},
+ {Opt_prjquota, "prjquota"},
{Opt_barrier, "barrier=%u"},
{Opt_barrier, "barrier"},
{Opt_nobarrier, "nobarrier"},
@@ -1404,12 +1408,17 @@ static const struct mount_opts {
MOPT_SET | MOPT_Q},
{Opt_grpquota, EXT4_MOUNT_QUOTA | EXT4_MOUNT_GRPQUOTA,
MOPT_SET | MOPT_Q},
+ {Opt_prjquota, EXT4_MOUNT_QUOTA | EXT4_MOUNT_PRJQUOTA,
+ MOPT_SET | MOPT_Q},
{Opt_noquota, (EXT4_MOUNT_QUOTA | EXT4_MOUNT_USRQUOTA |
- EXT4_MOUNT_GRPQUOTA), MOPT_CLEAR | MOPT_Q},
+ EXT4_MOUNT_GRPQUOTA | EXT4_MOUNT_PRJQUOTA),
+ MOPT_CLEAR | MOPT_Q},
{Opt_usrjquota, 0, MOPT_Q},
{Opt_grpjquota, 0, MOPT_Q},
+ {Opt_prjjquota, 0, MOPT_Q},
{Opt_offusrjquota, 0, MOPT_Q},
{Opt_offgrpjquota, 0, MOPT_Q},
+ {Opt_offprjjquota, 0, MOPT_Q},
{Opt_jqfmt_vfsold, QFMT_VFS_OLD, MOPT_QFMT},
{Opt_jqfmt_vfsv0, QFMT_VFS_V0, MOPT_QFMT},
{Opt_jqfmt_vfsv1, QFMT_VFS_V1, MOPT_QFMT},
@@ -1432,10 +1441,14 @@ static int handle_mount_opt(struct super_block *sb, char *opt, int token,
return set_qf_name(sb, USRQUOTA, &args[0]);
else if (token == Opt_grpjquota)
return set_qf_name(sb, GRPQUOTA, &args[0]);
+ else if (token == Opt_prjjquota)
+ return set_qf_name(sb, PRJQUOTA, &args[0]);
else if (token == Opt_offusrjquota)
return clear_qf_name(sb, USRQUOTA);
else if (token == Opt_offgrpjquota)
return clear_qf_name(sb, GRPQUOTA);
+ else if (token == Opt_offprjjquota)
+ return clear_qf_name(sb, PRJQUOTA);
#endif
switch (token) {
case Opt_noacl:
@@ -1661,19 +1674,28 @@ static int parse_options(char *options, struct super_block *sb,
}
#ifdef CONFIG_QUOTA
if (EXT4_HAS_RO_COMPAT_FEATURE(sb, EXT4_FEATURE_RO_COMPAT_QUOTA) &&
- (test_opt(sb, USRQUOTA) || test_opt(sb, GRPQUOTA))) {
+ (test_opt(sb, USRQUOTA) ||
+ test_opt(sb, GRPQUOTA) ||
+ test_opt(sb, PRJQUOTA))) {
ext4_msg(sb, KERN_ERR, "Cannot set quota options when QUOTA "
"feature is enabled");
return 0;
}
- if (sbi->s_qf_names[USRQUOTA] || sbi->s_qf_names[GRPQUOTA]) {
+ if (sbi->s_qf_names[USRQUOTA] ||
+ sbi->s_qf_names[GRPQUOTA] ||
+ sbi->s_qf_names[PRJQUOTA]) {
if (test_opt(sb, USRQUOTA) && sbi->s_qf_names[USRQUOTA])
clear_opt(sb, USRQUOTA);
if (test_opt(sb, GRPQUOTA) && sbi->s_qf_names[GRPQUOTA])
clear_opt(sb, GRPQUOTA);
- if (test_opt(sb, GRPQUOTA) || test_opt(sb, USRQUOTA)) {
+ if (test_opt(sb, PRJQUOTA) && sbi->s_qf_names[PRJQUOTA])
+ clear_opt(sb, PRJQUOTA);
+
+ if (test_opt(sb, GRPQUOTA) ||
+ test_opt(sb, USRQUOTA) ||
+ test_opt(sb, PRJQUOTA)) {
ext4_msg(sb, KERN_ERR, "old and new quota "
"format mixing");
return 0;
@@ -1733,6 +1755,9 @@ static inline void ext4_show_quota_options(struct seq_file *seq,
if (sbi->s_qf_names[GRPQUOTA])
seq_printf(seq, ",grpjquota=%s", sbi->s_qf_names[GRPQUOTA]);
+
+ if (sbi->s_qf_names[PRJQUOTA])
+ seq_printf(seq, ",prjjquota=%s", sbi->s_qf_names[PRJQUOTA]);
#endif
}
@@ -5037,6 +5062,46 @@ restore_opts:
return err;
}
+static int ext4_statfs_project(struct super_block *sb,
+ kprojid_t projid, struct kstatfs *buf)
+{
+ struct kqid qid;
+ struct dquot *dquot;
+ u64 limit;
+ u64 curblock;
+
+ qid = make_kqid_projid(projid);
+ dquot = dqget(sb, qid);
+ if (!dquot)
+ return -ESRCH;
+ spin_lock(&dq_data_lock);
+
+ limit = dquot->dq_dqb.dqb_bsoftlimit ?
+ dquot->dq_dqb.dqb_bsoftlimit :
+ dquot->dq_dqb.dqb_bhardlimit;
+ if (limit && buf->f_blocks * buf->f_bsize > limit) {
+ curblock = dquot->dq_dqb.dqb_curspace / buf->f_bsize;
+ buf->f_blocks = limit / buf->f_bsize;
+ buf->f_bfree = buf->f_bavail =
+ (buf->f_blocks > curblock) ?
+ (buf->f_blocks - curblock) : 0;
+ }
+
+ limit = dquot->dq_dqb.dqb_isoftlimit ?
+ dquot->dq_dqb.dqb_isoftlimit :
+ dquot->dq_dqb.dqb_ihardlimit;
+ if (limit && buf->f_files > limit) {
+ buf->f_files = limit;
+ buf->f_ffree =
+ (buf->f_files > dquot->dq_dqb.dqb_curinodes) ?
+ (buf->f_files - dquot->dq_dqb.dqb_curinodes) : 0;
+ }
+
+ spin_unlock(&dq_data_lock);
+ dqput(dquot);
+ return 0;
+}
+
static int ext4_statfs(struct dentry *dentry, struct kstatfs *buf)
{
struct super_block *sb = dentry->d_sb;
@@ -5045,6 +5110,7 @@ static int ext4_statfs(struct dentry *dentry, struct kstatfs *buf)
ext4_fsblk_t overhead = 0, resv_blocks;
u64 fsid;
s64 bfree;
+ struct inode *inode = dentry->d_inode;
resv_blocks = EXT4_C2B(sbi, atomic64_read(&sbi->s_resv_clusters));
if (!test_opt(sb, MINIX_DF))
@@ -5069,6 +5135,9 @@ static int ext4_statfs(struct dentry *dentry, struct kstatfs *buf)
buf->f_fsid.val[0] = fsid & 0xFFFFFFFFUL;
buf->f_fsid.val[1] = (fsid >> 32) & 0xFFFFFFFFUL;
+ if (ext4_test_inode_flag(inode, EXT4_INODE_PROJINHERIT) &&
+ sb_has_quota_limits_enabled(sb, PRJQUOTA))
+ ext4_statfs_project(sb, EXT4_I(inode)->i_projid, buf);
return 0;
}
@@ -5149,7 +5218,9 @@ static int ext4_mark_dquot_dirty(struct dquot *dquot)
/* Are we journaling quotas? */
if (EXT4_HAS_RO_COMPAT_FEATURE(sb, EXT4_FEATURE_RO_COMPAT_QUOTA) ||
- sbi->s_qf_names[USRQUOTA] || sbi->s_qf_names[GRPQUOTA]) {
+ sbi->s_qf_names[USRQUOTA] ||
+ sbi->s_qf_names[GRPQUOTA] ||
+ sbi->s_qf_names[PRJQUOTA]) {
dquot_mark_dquot_dirty(dquot);
return ext4_write_dquot(dquot);
} else {
@@ -5233,7 +5304,8 @@ static int ext4_quota_enable(struct super_block *sb, int type, int format_id,
struct inode *qf_inode;
unsigned long qf_inums[EXT4_MAXQUOTAS] = {
le32_to_cpu(EXT4_SB(sb)->s_es->s_usr_quota_inum),
- le32_to_cpu(EXT4_SB(sb)->s_es->s_grp_quota_inum)
+ le32_to_cpu(EXT4_SB(sb)->s_es->s_grp_quota_inum),
+ le32_to_cpu(EXT4_SB(sb)->s_es->s_prj_quota_inum)
};
BUG_ON(!EXT4_HAS_RO_COMPAT_FEATURE(sb, EXT4_FEATURE_RO_COMPAT_QUOTA));
@@ -5261,7 +5333,8 @@ static int ext4_enable_quotas(struct super_block *sb)
int type, err = 0;
unsigned long qf_inums[EXT4_MAXQUOTAS] = {
le32_to_cpu(EXT4_SB(sb)->s_es->s_usr_quota_inum),
- le32_to_cpu(EXT4_SB(sb)->s_es->s_grp_quota_inum)
+ le32_to_cpu(EXT4_SB(sb)->s_es->s_grp_quota_inum),
+ le32_to_cpu(EXT4_SB(sb)->s_es->s_prj_quota_inum)
};
sb_dqopt(sb)->flags |= DQUOT_QUOTA_SYS_FILE;
--
1.7.1
^ permalink raw reply related
* [v8 2/5] ext4: adds project ID support
From: Li Xi @ 2014-12-09 5:22 UTC (permalink / raw)
To: linux-fsdevel, linux-ext4, linux-api, tytso, adilger, jack, viro,
hch, dmonakhov
In-Reply-To: <1418102548-5469-1-git-send-email-lixi@ddn.com>
This patch adds a new internal field of ext4 inode to save project
identifier. Also a new flag EXT4_INODE_PROJINHERIT is added for
inheriting project ID from parent directory.
Signed-off-by: Li Xi <lixi@ddn.com>
Reviewed-by: Jan Kara <jack@suse.cz>
---
fs/ext4/ext4.h | 21 +++++++++++++++++----
fs/ext4/ialloc.c | 6 ++++++
fs/ext4/inode.c | 29 +++++++++++++++++++++++++++++
fs/ext4/namei.c | 17 +++++++++++++++++
fs/ext4/super.c | 1 +
include/uapi/linux/fs.h | 1 +
6 files changed, 71 insertions(+), 4 deletions(-)
diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h
index 29c43e7..8bd1da9 100644
--- a/fs/ext4/ext4.h
+++ b/fs/ext4/ext4.h
@@ -377,16 +377,18 @@ struct flex_groups {
#define EXT4_EA_INODE_FL 0x00200000 /* Inode used for large EA */
#define EXT4_EOFBLOCKS_FL 0x00400000 /* Blocks allocated beyond EOF */
#define EXT4_INLINE_DATA_FL 0x10000000 /* Inode has inline data. */
+#define EXT4_PROJINHERIT_FL FS_PROJINHERIT_FL /* Create with parents projid */
#define EXT4_RESERVED_FL 0x80000000 /* reserved for ext4 lib */
-#define EXT4_FL_USER_VISIBLE 0x004BDFFF /* User visible flags */
-#define EXT4_FL_USER_MODIFIABLE 0x004380FF /* User modifiable flags */
+#define EXT4_FL_USER_VISIBLE 0x204BDFFF /* User visible flags */
+#define EXT4_FL_USER_MODIFIABLE 0x204380FF /* User modifiable flags */
/* Flags that should be inherited by new inodes from their parent. */
#define EXT4_FL_INHERITED (EXT4_SECRM_FL | EXT4_UNRM_FL | EXT4_COMPR_FL |\
EXT4_SYNC_FL | EXT4_NODUMP_FL | EXT4_NOATIME_FL |\
EXT4_NOCOMPR_FL | EXT4_JOURNAL_DATA_FL |\
- EXT4_NOTAIL_FL | EXT4_DIRSYNC_FL)
+ EXT4_NOTAIL_FL | EXT4_DIRSYNC_FL |\
+ EXT4_PROJINHERIT_FL)
/* Flags that are appropriate for regular files (all but dir-specific ones). */
#define EXT4_REG_FLMASK (~(EXT4_DIRSYNC_FL | EXT4_TOPDIR_FL))
@@ -434,6 +436,7 @@ enum {
EXT4_INODE_EA_INODE = 21, /* Inode used for large EA */
EXT4_INODE_EOFBLOCKS = 22, /* Blocks allocated beyond EOF */
EXT4_INODE_INLINE_DATA = 28, /* Data in inode. */
+ EXT4_INODE_PROJINHERIT = 29, /* Create with parents projid */
EXT4_INODE_RESERVED = 31, /* reserved for ext4 lib */
};
@@ -683,6 +686,7 @@ struct ext4_inode {
__le32 i_crtime; /* File Creation time */
__le32 i_crtime_extra; /* extra FileCreationtime (nsec << 2 | epoch) */
__le32 i_version_hi; /* high 32 bits for 64-bit version */
+ __le32 i_projid; /* Project ID */
};
struct move_extent {
@@ -934,6 +938,7 @@ struct ext4_inode_info {
/* Precomputed uuid+inum+igen checksum for seeding inode checksums */
__u32 i_csum_seed;
+ kprojid_t i_projid;
};
/*
@@ -1518,6 +1523,7 @@ static inline void ext4_clear_state_flags(struct ext4_inode_info *ei)
* GDT_CSUM bits are mutually exclusive.
*/
#define EXT4_FEATURE_RO_COMPAT_METADATA_CSUM 0x0400
+#define EXT4_FEATURE_RO_COMPAT_PROJECT 0x1000 /* Project quota */
#define EXT4_FEATURE_INCOMPAT_COMPRESSION 0x0001
#define EXT4_FEATURE_INCOMPAT_FILETYPE 0x0002
@@ -1567,7 +1573,8 @@ static inline void ext4_clear_state_flags(struct ext4_inode_info *ei)
EXT4_FEATURE_RO_COMPAT_HUGE_FILE |\
EXT4_FEATURE_RO_COMPAT_BIGALLOC |\
EXT4_FEATURE_RO_COMPAT_METADATA_CSUM|\
- EXT4_FEATURE_RO_COMPAT_QUOTA)
+ EXT4_FEATURE_RO_COMPAT_QUOTA |\
+ EXT4_FEATURE_RO_COMPAT_PROJECT)
/*
* Default values for user and/or group using reserved blocks
@@ -1575,6 +1582,11 @@ static inline void ext4_clear_state_flags(struct ext4_inode_info *ei)
#define EXT4_DEF_RESUID 0
#define EXT4_DEF_RESGID 0
+/*
+ * Default project ID
+ */
+#define EXT4_DEF_PROJID 0
+
#define EXT4_DEF_INODE_READAHEAD_BLKS 32
/*
@@ -2131,6 +2143,7 @@ extern int ext4_zero_partial_blocks(handle_t *handle, struct inode *inode,
loff_t lstart, loff_t lend);
extern int ext4_page_mkwrite(struct vm_area_struct *vma, struct vm_fault *vmf);
extern qsize_t *ext4_get_reserved_space(struct inode *inode);
+extern int ext4_get_projid(struct inode *inode, kprojid_t *projid);
extern void ext4_da_update_reserve_space(struct inode *inode,
int used, int quota_claim);
diff --git a/fs/ext4/ialloc.c b/fs/ext4/ialloc.c
index ac644c3..fefb948 100644
--- a/fs/ext4/ialloc.c
+++ b/fs/ext4/ialloc.c
@@ -756,6 +756,12 @@ struct inode *__ext4_new_inode(handle_t *handle, struct inode *dir,
inode->i_gid = dir->i_gid;
} else
inode_init_owner(inode, dir, mode);
+ if (EXT4_HAS_RO_COMPAT_FEATURE(sb, EXT4_FEATURE_RO_COMPAT_PROJECT) &&
+ ext4_test_inode_flag(dir, EXT4_INODE_PROJINHERIT)) {
+ ei->i_projid = EXT4_I(dir)->i_projid;
+ } else {
+ ei->i_projid = make_kprojid(&init_user_ns, EXT4_DEF_PROJID);
+ }
dquot_initialize(inode);
if (!goal)
diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c
index 5653fa4..29204d4 100644
--- a/fs/ext4/inode.c
+++ b/fs/ext4/inode.c
@@ -3863,6 +3863,14 @@ static inline void ext4_iget_extra_inode(struct inode *inode,
EXT4_I(inode)->i_inline_off = 0;
}
+int ext4_get_projid(struct inode *inode, kprojid_t *projid)
+{
+ if (!EXT4_HAS_RO_COMPAT_FEATURE(inode->i_sb, EXT4_FEATURE_RO_COMPAT_PROJECT))
+ return -EOPNOTSUPP;
+ *projid = EXT4_I(inode)->i_projid;
+ return 0;
+}
+
struct inode *ext4_iget(struct super_block *sb, unsigned long ino)
{
struct ext4_iloc iloc;
@@ -3874,6 +3882,7 @@ struct inode *ext4_iget(struct super_block *sb, unsigned long ino)
int block;
uid_t i_uid;
gid_t i_gid;
+ projid_t i_projid;
inode = iget_locked(sb, ino);
if (!inode)
@@ -3923,12 +3932,18 @@ struct inode *ext4_iget(struct super_block *sb, unsigned long ino)
inode->i_mode = le16_to_cpu(raw_inode->i_mode);
i_uid = (uid_t)le16_to_cpu(raw_inode->i_uid_low);
i_gid = (gid_t)le16_to_cpu(raw_inode->i_gid_low);
+ if (EXT4_HAS_RO_COMPAT_FEATURE(sb, EXT4_FEATURE_RO_COMPAT_PROJECT))
+ i_projid = (projid_t)le32_to_cpu(raw_inode->i_projid);
+ else
+ i_projid = EXT4_DEF_PROJID;
+
if (!(test_opt(inode->i_sb, NO_UID32))) {
i_uid |= le16_to_cpu(raw_inode->i_uid_high) << 16;
i_gid |= le16_to_cpu(raw_inode->i_gid_high) << 16;
}
i_uid_write(inode, i_uid);
i_gid_write(inode, i_gid);
+ ei->i_projid = make_kprojid(&init_user_ns, i_projid);;
set_nlink(inode, le16_to_cpu(raw_inode->i_links_count));
ext4_clear_state_flags(ei); /* Only relevant on 32-bit archs */
@@ -4158,6 +4173,7 @@ static int ext4_do_update_inode(handle_t *handle,
int need_datasync = 0, set_large_file = 0;
uid_t i_uid;
gid_t i_gid;
+ projid_t i_projid;
spin_lock(&ei->i_raw_lock);
@@ -4170,6 +4186,7 @@ static int ext4_do_update_inode(handle_t *handle,
raw_inode->i_mode = cpu_to_le16(inode->i_mode);
i_uid = i_uid_read(inode);
i_gid = i_gid_read(inode);
+ i_projid = from_kprojid(&init_user_ns, ei->i_projid);
if (!(test_opt(inode->i_sb, NO_UID32))) {
raw_inode->i_uid_low = cpu_to_le16(low_16_bits(i_uid));
raw_inode->i_gid_low = cpu_to_le16(low_16_bits(i_gid));
@@ -4249,6 +4266,18 @@ static int ext4_do_update_inode(handle_t *handle,
}
}
+ BUG_ON(!EXT4_HAS_RO_COMPAT_FEATURE(inode->i_sb,
+ EXT4_FEATURE_RO_COMPAT_PROJECT) &&
+ i_projid != EXT4_DEF_PROJID);
+ if (i_projid != EXT4_DEF_PROJID &&
+ (EXT4_INODE_SIZE(inode->i_sb) <= EXT4_GOOD_OLD_INODE_SIZE ||
+ (!EXT4_FITS_IN_INODE(raw_inode, ei, i_projid)))) {
+ spin_unlock(&ei->i_raw_lock);
+ err = -EFBIG;
+ goto out_brelse;
+ }
+ raw_inode->i_projid = cpu_to_le32(i_projid);
+
ext4_inode_csum_set(inode, raw_inode, ei);
spin_unlock(&ei->i_raw_lock);
diff --git a/fs/ext4/namei.c b/fs/ext4/namei.c
index 2291923..09e8e55 100644
--- a/fs/ext4/namei.c
+++ b/fs/ext4/namei.c
@@ -2938,6 +2938,11 @@ static int ext4_link(struct dentry *old_dentry,
if (inode->i_nlink >= EXT4_LINK_MAX)
return -EMLINK;
+ if ((ext4_test_inode_flag(dir, EXT4_INODE_PROJINHERIT)) &&
+ (!projid_eq(EXT4_I(dir)->i_projid,
+ EXT4_I(old_dentry->d_inode)->i_projid)))
+ return -EXDEV;
+
dquot_initialize(dir);
retry:
@@ -3217,6 +3222,11 @@ static int ext4_rename(struct inode *old_dir, struct dentry *old_dentry,
int credits;
u8 old_file_type;
+ if ((ext4_test_inode_flag(new_dir, EXT4_INODE_PROJINHERIT)) &&
+ (!projid_eq(EXT4_I(new_dir)->i_projid,
+ EXT4_I(old_dentry->d_inode)->i_projid)))
+ return -EXDEV;
+
dquot_initialize(old.dir);
dquot_initialize(new.dir);
@@ -3395,6 +3405,13 @@ static int ext4_cross_rename(struct inode *old_dir, struct dentry *old_dentry,
u8 new_file_type;
int retval;
+ if ((ext4_test_inode_flag(new_dir, EXT4_INODE_PROJINHERIT)) &&
+ ((!projid_eq(EXT4_I(new_dir)->i_projid,
+ EXT4_I(old_dentry->d_inode)->i_projid)) ||
+ (!projid_eq(EXT4_I(old_dir)->i_projid,
+ EXT4_I(new_dentry->d_inode)->i_projid))))
+ return -EXDEV;
+
dquot_initialize(old.dir);
dquot_initialize(new.dir);
diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index 4fca81c..6b67795 100644
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -1067,6 +1067,7 @@ static const struct dquot_operations ext4_quota_operations = {
.write_info = ext4_write_info,
.alloc_dquot = dquot_alloc,
.destroy_dquot = dquot_destroy,
+ .get_projid = ext4_get_projid,
};
static const struct quotactl_ops ext4_qctl_operations = {
diff --git a/include/uapi/linux/fs.h b/include/uapi/linux/fs.h
index 3735fa0..fcbf647 100644
--- a/include/uapi/linux/fs.h
+++ b/include/uapi/linux/fs.h
@@ -195,6 +195,7 @@ struct inodes_stat_t {
#define FS_EXTENT_FL 0x00080000 /* Extents */
#define FS_DIRECTIO_FL 0x00100000 /* Use direct i/o */
#define FS_NOCOW_FL 0x00800000 /* Do not cow file */
+#define FS_PROJINHERIT_FL 0x20000000 /* Create with parents projid */
#define FS_RESERVED_FL 0x80000000 /* reserved for ext2 lib */
#define FS_FL_USER_VISIBLE 0x0003DFFF /* User visible flags */
--
1.7.1
^ permalink raw reply related
* [v8 1/5] vfs: adds general codes to enforces project quota limits
From: Li Xi @ 2014-12-09 5:22 UTC (permalink / raw)
To: linux-fsdevel, linux-ext4, linux-api, tytso, adilger, jack, viro,
hch, dmonakhov
In-Reply-To: <1418102548-5469-1-git-send-email-lixi@ddn.com>
This patch adds support for a new quota type PRJQUOTA for project quota
enforcement. Also a new method get_projid() is added into dquot_operations
structure.
Signed-off-by: Li Xi <lixi@ddn.com>
Signed-off-by: Dmitry Monakhov <dmonakhov@openvz.org>
Reviewed-by: Jan Kara <jack@suse.cz>
---
fs/quota/dquot.c | 35 ++++++++++++++++++++++++++++++-----
fs/quota/quota.c | 8 ++++++--
fs/quota/quotaio_v2.h | 6 ++++--
include/linux/quota.h | 2 ++
include/uapi/linux/quota.h | 6 ++++--
5 files changed, 46 insertions(+), 11 deletions(-)
diff --git a/fs/quota/dquot.c b/fs/quota/dquot.c
index 6b45272..379ff77 100644
--- a/fs/quota/dquot.c
+++ b/fs/quota/dquot.c
@@ -1154,8 +1154,8 @@ static int need_print_warning(struct dquot_warn *warn)
return uid_eq(current_fsuid(), warn->w_dq_id.uid);
case GRPQUOTA:
return in_group_p(warn->w_dq_id.gid);
- case PRJQUOTA: /* Never taken... Just make gcc happy */
- return 0;
+ case PRJQUOTA:
+ return 1;
}
return 0;
}
@@ -1394,6 +1394,9 @@ static void __dquot_initialize(struct inode *inode, int type)
/* First get references to structures we might need. */
for (cnt = 0; cnt < MAXQUOTAS; cnt++) {
struct kqid qid;
+ kprojid_t projid;
+ int rc;
+
got[cnt] = NULL;
if (type != -1 && cnt != type)
continue;
@@ -1404,6 +1407,10 @@ static void __dquot_initialize(struct inode *inode, int type)
*/
if (inode->i_dquot[cnt])
continue;
+
+ if (!sb_has_quota_active(sb, cnt))
+ continue;
+
init_needed = 1;
switch (cnt) {
@@ -1413,6 +1420,12 @@ static void __dquot_initialize(struct inode *inode, int type)
case GRPQUOTA:
qid = make_kqid_gid(inode->i_gid);
break;
+ case PRJQUOTA:
+ rc = inode->i_sb->dq_op->get_projid(inode, &projid);
+ if (rc)
+ continue;
+ qid = make_kqid_projid(projid);
+ break;
}
got[cnt] = dqget(sb, qid);
}
@@ -2156,7 +2169,8 @@ static int vfs_load_quota_inode(struct inode *inode, int type, int format_id,
error = -EROFS;
goto out_fmt;
}
- if (!sb->s_op->quota_write || !sb->s_op->quota_read) {
+ if (!sb->s_op->quota_write || !sb->s_op->quota_read ||
+ (type == PRJQUOTA && sb->dq_op->get_projid == NULL)) {
error = -EINVAL;
goto out_fmt;
}
@@ -2397,8 +2411,19 @@ static void do_get_dqblk(struct dquot *dquot, struct fs_disk_quota *di)
memset(di, 0, sizeof(*di));
di->d_version = FS_DQUOT_VERSION;
- di->d_flags = dquot->dq_id.type == USRQUOTA ?
- FS_USER_QUOTA : FS_GROUP_QUOTA;
+ switch (dquot->dq_id.type) {
+ case USRQUOTA:
+ di->d_flags = FS_USER_QUOTA;
+ break;
+ case GRPQUOTA:
+ di->d_flags = FS_GROUP_QUOTA;
+ break;
+ case PRJQUOTA:
+ di->d_flags = FS_PROJ_QUOTA;
+ break;
+ default:
+ BUG();
+ }
di->d_id = from_kqid_munged(current_user_ns(), dquot->dq_id);
spin_lock(&dq_data_lock);
diff --git a/fs/quota/quota.c b/fs/quota/quota.c
index 7562164..795d694 100644
--- a/fs/quota/quota.c
+++ b/fs/quota/quota.c
@@ -30,11 +30,15 @@ static int check_quotactl_permission(struct super_block *sb, int type, int cmd,
case Q_XGETQSTATV:
case Q_XQUOTASYNC:
break;
- /* allow to query information for dquots we "own" */
+ /*
+ * allow to query information for dquots we "own"
+ * always allow querying project quota
+ */
case Q_GETQUOTA:
case Q_XGETQUOTA:
if ((type == USRQUOTA && uid_eq(current_euid(), make_kuid(current_user_ns(), id))) ||
- (type == GRPQUOTA && in_egroup_p(make_kgid(current_user_ns(), id))))
+ (type == GRPQUOTA && in_egroup_p(make_kgid(current_user_ns(), id))) ||
+ (type == PRJQUOTA))
break;
/*FALLTHROUGH*/
default:
diff --git a/fs/quota/quotaio_v2.h b/fs/quota/quotaio_v2.h
index f1966b4..4e95430 100644
--- a/fs/quota/quotaio_v2.h
+++ b/fs/quota/quotaio_v2.h
@@ -13,12 +13,14 @@
*/
#define V2_INITQMAGICS {\
0xd9c01f11, /* USRQUOTA */\
- 0xd9c01927 /* GRPQUOTA */\
+ 0xd9c01927, /* GRPQUOTA */\
+ 0xd9c03f14, /* PRJQUOTA */\
}
#define V2_INITQVERSIONS {\
1, /* USRQUOTA */\
- 1 /* GRPQUOTA */\
+ 1, /* GRPQUOTA */\
+ 1, /* PRJQUOTA */\
}
/* First generic header */
diff --git a/include/linux/quota.h b/include/linux/quota.h
index 80d345a..f1b25f8 100644
--- a/include/linux/quota.h
+++ b/include/linux/quota.h
@@ -50,6 +50,7 @@
#undef USRQUOTA
#undef GRPQUOTA
+#undef PRJQUOTA
enum quota_type {
USRQUOTA = 0, /* element used for user quotas */
GRPQUOTA = 1, /* element used for group quotas */
@@ -312,6 +313,7 @@ struct dquot_operations {
/* get reserved quota for delayed alloc, value returned is managed by
* quota code only */
qsize_t *(*get_reserved_space) (struct inode *);
+ int (*get_projid) (struct inode *, kprojid_t *);/* Get project ID */
};
struct path;
diff --git a/include/uapi/linux/quota.h b/include/uapi/linux/quota.h
index 3b6cfbe..b2d9486 100644
--- a/include/uapi/linux/quota.h
+++ b/include/uapi/linux/quota.h
@@ -36,11 +36,12 @@
#include <linux/errno.h>
#include <linux/types.h>
-#define __DQUOT_VERSION__ "dquot_6.5.2"
+#define __DQUOT_VERSION__ "dquot_6.6.0"
-#define MAXQUOTAS 2
+#define MAXQUOTAS 3
#define USRQUOTA 0 /* element used for user quotas */
#define GRPQUOTA 1 /* element used for group quotas */
+#define PRJQUOTA 2 /* element used for project quotas */
/*
* Definitions for the default names of the quotas files.
@@ -48,6 +49,7 @@
#define INITQFNAMES { \
"user", /* USRQUOTA */ \
"group", /* GRPQUOTA */ \
+ "project", /* PRJQUOTA */ \
"undefined", \
};
--
1.7.1
^ permalink raw reply related
* [v8 0/5] ext4: add project quota support
From: Li Xi @ 2014-12-09 5:22 UTC (permalink / raw)
To: linux-fsdevel-u79uwXL29TY76Z2rM5mHXA,
linux-ext4-u79uwXL29TY76Z2rM5mHXA,
linux-api-u79uwXL29TY76Z2rM5mHXA, tytso-3s7WtUTddSA,
adilger-m1MBpc4rdrD3fQ9qLvQP4Q, jack-AlSwsSmVLrQ,
viro-RmSDqhL/yNMiFSDQTTA3OLVCufUGDwFn, hch-wEGCiKHe2LqWVfeAwA7xHQ,
dmonakhov-GEFAQzZX7r8dnm+yROfE0A
The following patches propose an implementation of project quota
support for ext4. A project is an aggregate of unrelated inodes
which might scatter in different directories. Inodes that belong
to the same project possess an identical identification i.e.
'project ID', just like every inode has its user/group
identification. The following patches add project quota as
supplement to the former uer/group quota types.
The semantics of ext4 project quota is consistent with XFS. Each
directory can have EXT4_INODE_PROJINHERIT flag set. When the
EXT4_INODE_PROJINHERIT flag of a parent directory is not set, a
newly created inode under that directory will have a default project
ID (i.e. 0). And its EXT4_INODE_PROJINHERIT flag is not set either.
When this flag is set on a directory, following rules will be kept:
1) The newly created inode under that directory will inherit both
the EXT4_INODE_PROJINHERIT flag and the project ID from its parent
directory.
2) Hard-linking a inode with different project ID into that directory
will fail with errno EXDEV.
3) Renaming a inode with different project ID into that directory
will fail with errno EXDEV. However, 'mv' command will detect this
failure and copy the renamed inode to a new inode in the directory.
Thus, this new inode will inherit both the project ID and
EXT4_INODE_PROJINHERIT flag.
4) If the project quota of that ID is being enforced, statfs() on
that directory will take the quotas as another upper limits along
with the capacity of the file system, i.e. the total block/inode
number will be the minimum of the quota limits and file system
capacity.
Changelog:
* v8 <- v7:
- Rebase to newest dev branch of ext4 repository (3.18.0_rc3).
* v7 <- v6:
- Map ext4 inode flags to xflags of struct fsxattr;
- Add patch to cleanup ext4 inode flag definitions.
* v6 <- v5:
- Add project ID check for cross rename;
- Remove patch of EXT4_IOC_GETPROJECT/EXT4_IOC_SETPROJECT ioctl
* v5 <- v4:
- Check project feature when set/get project ID;
- Do not check project feature for project quota;
- Add support of FS_IOC_FSSETXATTR/FS_IOC_FSGETXATTR.
* v4 <- v3:
- Do not check project feature when set/get project ID;
- Use EXT4_MAXQUOTAS instead of MAXQUOTAS in ext4 patches;
- Remove unnecessary change of fs/quota/dquot.c;
- Remove CONFIG_QUOTA_PROJECT.
* v3 <- v2:
- Add EXT4_INODE_PROJINHERIT semantics.
* v2 <- v1:
- Add ioctl interface for setting/getting project;
- Add EXT4_FEATURE_RO_COMPAT_PROJECT;
- Add get_projid() method in struct dquot_operations;
- Add error check of ext4_inode_projid_set/get().
v7: http://www.spinics.net/lists/linux-fsdevel/msg80404.html
v6: http://www.spinics.net/lists/linux-fsdevel/msg80022.html
v5: http://www.spinics.net/lists/linux-api/msg04840.html
v4: http://lwn.net/Articles/612972/
v3: http://www.spinics.net/lists/linux-ext4/msg45184.html
v2: http://www.spinics.net/lists/linux-ext4/msg44695.html
v1: http://article.gmane.org/gmane.comp.file-systems.ext4/45153
Any comments or feedbacks are appreciated.
Regards,
- Li Xi
Li Xi (5):
vfs: adds general codes to enforces project quota limits
ext4: adds project ID support
ext4: adds project quota support
ext4: adds FS_IOC_FSSETXATTR/FS_IOC_FSGETXATTR interface support
ext4: cleanup inode flag definitions
fs/ext4/ext4.h | 190 +++++++++++++++++++++----
fs/ext4/ialloc.c | 6 +
fs/ext4/inode.c | 29 ++++
fs/ext4/ioctl.c | 330 +++++++++++++++++++++++++++++++-------------
fs/ext4/namei.c | 17 +++
fs/ext4/super.c | 96 +++++++++++--
fs/quota/dquot.c | 35 ++++-
fs/quota/quota.c | 8 +-
fs/quota/quotaio_v2.h | 6 +-
fs/xfs/xfs_fs.h | 47 +++----
include/linux/quota.h | 2 +
include/uapi/linux/fs.h | 59 ++++++++
include/uapi/linux/quota.h | 6 +-
13 files changed, 650 insertions(+), 181 deletions(-)
^ permalink raw reply
* Re: [CFT][PATCH 6/7] userns: Add a knob to disable setgroups on a per user namespace basis
From: Eric W. Biederman @ 2014-12-08 23:30 UTC (permalink / raw)
To: Andy Lutomirski
Cc: Linux Containers, Josh Triplett, Andrew Morton, Kees Cook,
Michael Kerrisk-manpages, Linux API, linux-man,
linux-kernel@vger.kernel.org, LSM, Casey Schaufler,
Serge E. Hallyn, Richard Weinberger, Kenton Varda, stable
In-Reply-To: <CALCETrXSScp77BUJR5NSTh5-RnEZ9rqELSGJBeEzgdQ-OtohuQ-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
Andy Lutomirski <luto-kltTT9wpgjJwATOyAt5JVQ@public.gmane.org> writes:
> On Mon, Dec 8, 2014 at 2:44 PM, Eric W. Biederman <ebiederm-aS9lmoZGLiVWk0Htik3J/w@public.gmane.org> wrote:
>> Andy Lutomirski <luto-kltTT9wpgjJwATOyAt5JVQ@public.gmane.org> writes:
>>
>>> On Mon, Dec 8, 2014 at 2:11 PM, Eric W. Biederman <ebiederm-aS9lmoZGLiVWk0Htik3J/w@public.gmane.org> wrote:
>>>>
>>>> - Expose the knob to user space through a proc file /proc/<pid>/setgroups
>>>>
>>>> A value of 0 means the setgroups system call is disabled in the
>>>
>>> "deny"
>>>
>>>> current processes user namespace and can not be enabled in the
>>>> future in this user namespace.
>>>>
>>>> A value of 1 means the segtoups system call is enabled.
>>>>
>>>
>>> "allow"
>>>
>>>> - Descedent user namespaces inherit the value of setgroups from
>>>
>>> s/Descedent/Descendent/
>>
>> Bah. I updated everything but the changelog comment.
>>
>>>> --- a/kernel/groups.c
>>>> +++ b/kernel/groups.c
>>>> @@ -222,6 +222,7 @@ bool may_setgroups(void)
>>>> * the user namespace has been established.
>>>> */
>>>> return userns_gid_mappings_established(user_ns) &&
>>>> + userns_setgroups_allowed(user_ns) &&
>>>> ns_capable(user_ns, CAP_SETGID);
>>>> }
>>>
>>> Can you add a comment explaining the ordering? For example:
>>
>> I need to think on what I can say to make it clear.
>> Perhaps: /* Careful the order of these checks is important. */
>>
>>> We need to check for a gid mapping before checking setgroups_allowed
>>> because an unprivileged user can create a userns with setgroups
>>> allowed, then disallow setgroups and add a mapping. If we check in
>>> the opposite order, then we have a race: we could see that setgroups
>>> is allowed before the user clears the bit and then see that there is a
>>> gid mapping after the other thread is done.
>>
>
> This text was actually my suggested comment text.
Now I see.
> If you put smp_rmb() in this function with a comment like that, then I
> think it will all make sense and be obviously correct (even with most
> of the other barriers removed).
Right.
Given that we have to be careful when using these things anyway what
I was hoping to achieve with the barriers appears impossible, and
confusing so I will see about just adding barriers where we need them
for real. Sigh.
Eric
^ permalink raw reply
* Re: [CFT][PATCH 6/7] userns: Add a knob to disable setgroups on a per user namespace basis
From: Andy Lutomirski @ 2014-12-08 22:48 UTC (permalink / raw)
To: Eric W. Biederman
Cc: linux-man, Kees Cook, Linux API, Linux Containers, Josh Triplett,
stable, linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
Kenton Varda, LSM, Michael Kerrisk-manpages, Richard Weinberger,
Casey Schaufler, Andrew Morton
In-Reply-To: <87ppbtn4mv.fsf-JOvCrm2gF+uungPnsOpG7nhyD016LWXt@public.gmane.org>
On Mon, Dec 8, 2014 at 2:44 PM, Eric W. Biederman <ebiederm-aS9lmoZGLiVWk0Htik3J/w@public.gmane.org> wrote:
> Andy Lutomirski <luto-kltTT9wpgjJwATOyAt5JVQ@public.gmane.org> writes:
>
>> On Mon, Dec 8, 2014 at 2:11 PM, Eric W. Biederman <ebiederm-aS9lmoZGLiVWk0Htik3J/w@public.gmane.org> wrote:
>>>
>>> - Expose the knob to user space through a proc file /proc/<pid>/setgroups
>>>
>>> A value of 0 means the setgroups system call is disabled in the
>>
>> "deny"
>>
>>> current processes user namespace and can not be enabled in the
>>> future in this user namespace.
>>>
>>> A value of 1 means the segtoups system call is enabled.
>>>
>>
>> "allow"
>>
>>> - Descedent user namespaces inherit the value of setgroups from
>>
>> s/Descedent/Descendent/
>
> Bah. I updated everything but the changelog comment.
>
>>> --- a/kernel/groups.c
>>> +++ b/kernel/groups.c
>>> @@ -222,6 +222,7 @@ bool may_setgroups(void)
>>> * the user namespace has been established.
>>> */
>>> return userns_gid_mappings_established(user_ns) &&
>>> + userns_setgroups_allowed(user_ns) &&
>>> ns_capable(user_ns, CAP_SETGID);
>>> }
>>
>> Can you add a comment explaining the ordering? For example:
>
> I need to think on what I can say to make it clear.
> Perhaps: /* Careful the order of these checks is important. */
>
>> We need to check for a gid mapping before checking setgroups_allowed
>> because an unprivileged user can create a userns with setgroups
>> allowed, then disallow setgroups and add a mapping. If we check in
>> the opposite order, then we have a race: we could see that setgroups
>> is allowed before the user clears the bit and then see that there is a
>> gid mapping after the other thread is done.
>
This text was actually my suggested comment text.
If you put smp_rmb() in this function with a comment like that, then I
think it will all make sense and be obviously correct (even with most
of the other barriers removed).
--Andy
> Since these are independent atomic variables yes that ordering issue
> seems to be the case.
>
> For me it was the natural ordering of the checks so I didn't even bother
> to think about what happens when you reorder them.
>
> Eric
--
Andy Lutomirski
AMA Capital Management, LLC
^ permalink raw reply
* Re: [CFT][PATCH 2/7] userns: Don't allow setgroups until a gid mapping has been setablished
From: Andy Lutomirski @ 2014-12-08 22:47 UTC (permalink / raw)
To: Eric W. Biederman
Cc: linux-man, Kees Cook, Richard Weinberger, Linux Containers,
Josh Triplett, stable,
linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
Kenton Varda, LSM, Michael Kerrisk-manpages, Linux API,
Casey Schaufler, Andrew Morton
In-Reply-To: <874mt5ojfh.fsf-JOvCrm2gF+uungPnsOpG7nhyD016LWXt@public.gmane.org>
On Mon, Dec 8, 2014 at 2:39 PM, Eric W. Biederman <ebiederm-aS9lmoZGLiVWk0Htik3J/w@public.gmane.org> wrote:
> Richard Weinberger <richard-/L3Ra7n9ekc@public.gmane.org> writes:
>
>> Am 08.12.2014 um 23:25 schrieb Andy Lutomirski:
>>> On Mon, Dec 8, 2014 at 2:17 PM, Richard Weinberger <richard-/L3Ra7n9ekc@public.gmane.org> wrote:
>>>> Am 08.12.2014 um 23:07 schrieb Eric W. Biederman:
>>>>>
>>>>> setgroups is unique in not needing a valid mapping before it can be called,
>>>>> in the case of setgroups(0, NULL) which drops all supplemental groups.
>>>>>
>>>>> The design of the user namespace assumes that CAP_SETGID can not actually
>>>>> be used until a gid mapping is established. Therefore add a helper function
>>>>> to see if the user namespace gid mapping has been established and call
>>>>> that function in the setgroups permission check.
>>>>>
>>>>> This is part of the fix for CVE-2014-8989, being able to drop groups
>>>>> without privilege using user namespaces.
>>>>>
>>>>> Cc: stable-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
>>>>> Signed-off-by: "Eric W. Biederman" <ebiederm-aS9lmoZGLiVWk0Htik3J/w@public.gmane.org>
>>>>> ---
>>>>> include/linux/user_namespace.h | 9 +++++++++
>>>>> kernel/groups.c | 7 ++++++-
>>>>> 2 files changed, 15 insertions(+), 1 deletion(-)
>>>>>
>>>>> diff --git a/include/linux/user_namespace.h b/include/linux/user_namespace.h
>>>>> index e95372654f09..41cc26e5a350 100644
>>>>> --- a/include/linux/user_namespace.h
>>>>> +++ b/include/linux/user_namespace.h
>>>>> @@ -37,6 +37,15 @@ struct user_namespace {
>>>>>
>>>>> extern struct user_namespace init_user_ns;
>>>>>
>>>>> +static inline bool userns_gid_mappings_established(const struct user_namespace *ns)
>>>>> +{
>>>>> + bool established;
>>>>> + smp_mb__before_atomic();
>>>>> + established = ACCESS_ONCE(ns->gid_map.nr_extents) != 0;
>>>>> + smp_mb__after_atomic();
>>>>> + return established;
>>>>> +}
>>>>> +
>>>>
>>>> Maybe this is a stupid question, but why do we need all this magic
>>>> around established = ... ?
>>>> The purpose of this code is to check whether ns->gid_map.nr_extents != 0
>>>> in a lock-free manner?
>>>>
>>>
>>> See my other comment -- the ordering will matter at the end of the series.
>>
>> But ns->gid_map.nr_extents is not atomic, it is a plain u32.
>> This confuses me.
>
> Read Documentation/atomic_ops.txt a plain u32 is atomic by definiton.
>
I still don't understand why the helper changed to smp_mb__before_atomic.
> Which is a little bit convoluted. However that is part of the of the
> gid mapping path and I optimized that as far as I humanly could so that
> calls like stat don't take a noticable slow donw.
>
> On this path we don't particularly care except that I am using an the
> existing data structure.
As an example, arm64 defines both smp_mb__before_atomic and
smp_mb__after_atomic as smp_mb(), which is heavier then smp_rmb(), and
there are two of them. So I still like the explicit smp_rmb() better.
--Andy
>
> Eric
>
--
Andy Lutomirski
AMA Capital Management, LLC
^ permalink raw reply
* Re: [CFT][PATCH 6/7] userns: Add a knob to disable setgroups on a per user namespace basis
From: Eric W. Biederman @ 2014-12-08 22:44 UTC (permalink / raw)
To: Andy Lutomirski
Cc: linux-man, Kees Cook, Linux API, Linux Containers, Josh Triplett,
stable, linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
Kenton Varda, LSM, Michael Kerrisk-manpages, Richard Weinberger,
Casey Schaufler, Andrew Morton
In-Reply-To: <CALCETrU-o5mPr1jCaLXDuuF6J2N470zAtx=8Fa-SjF=ZpdE8mQ-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
Andy Lutomirski <luto-kltTT9wpgjJwATOyAt5JVQ@public.gmane.org> writes:
> On Mon, Dec 8, 2014 at 2:11 PM, Eric W. Biederman <ebiederm-aS9lmoZGLiVWk0Htik3J/w@public.gmane.org> wrote:
>>
>> - Expose the knob to user space through a proc file /proc/<pid>/setgroups
>>
>> A value of 0 means the setgroups system call is disabled in the
>
> "deny"
>
>> current processes user namespace and can not be enabled in the
>> future in this user namespace.
>>
>> A value of 1 means the segtoups system call is enabled.
>>
>
> "allow"
>
>> - Descedent user namespaces inherit the value of setgroups from
>
> s/Descedent/Descendent/
Bah. I updated everything but the changelog comment.
>> --- a/kernel/groups.c
>> +++ b/kernel/groups.c
>> @@ -222,6 +222,7 @@ bool may_setgroups(void)
>> * the user namespace has been established.
>> */
>> return userns_gid_mappings_established(user_ns) &&
>> + userns_setgroups_allowed(user_ns) &&
>> ns_capable(user_ns, CAP_SETGID);
>> }
>
> Can you add a comment explaining the ordering? For example:
I need to think on what I can say to make it clear.
Perhaps: /* Careful the order of these checks is important. */
> We need to check for a gid mapping before checking setgroups_allowed
> because an unprivileged user can create a userns with setgroups
> allowed, then disallow setgroups and add a mapping. If we check in
> the opposite order, then we have a race: we could see that setgroups
> is allowed before the user clears the bit and then see that there is a
> gid mapping after the other thread is done.
Since these are independent atomic variables yes that ordering issue
seems to be the case.
For me it was the natural ordering of the checks so I didn't even bother
to think about what happens when you reorder them.
Eric
^ permalink raw reply
* Re: [CFT][PATCH 2/7] userns: Don't allow setgroups until a gid mapping has been setablished
From: Eric W. Biederman @ 2014-12-08 22:39 UTC (permalink / raw)
To: Richard Weinberger
Cc: linux-man, Kees Cook, Linux API, Linux Containers, Josh Triplett,
stable, Andy Lutomirski, Kenton Varda, LSM,
Michael Kerrisk-manpages, Casey Schaufler, Andrew Morton,
linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
In-Reply-To: <548625E3.6020400-/L3Ra7n9ekc@public.gmane.org>
Richard Weinberger <richard-/L3Ra7n9ekc@public.gmane.org> writes:
> Am 08.12.2014 um 23:25 schrieb Andy Lutomirski:
>> On Mon, Dec 8, 2014 at 2:17 PM, Richard Weinberger <richard-/L3Ra7n9ekc@public.gmane.org> wrote:
>>> Am 08.12.2014 um 23:07 schrieb Eric W. Biederman:
>>>>
>>>> setgroups is unique in not needing a valid mapping before it can be called,
>>>> in the case of setgroups(0, NULL) which drops all supplemental groups.
>>>>
>>>> The design of the user namespace assumes that CAP_SETGID can not actually
>>>> be used until a gid mapping is established. Therefore add a helper function
>>>> to see if the user namespace gid mapping has been established and call
>>>> that function in the setgroups permission check.
>>>>
>>>> This is part of the fix for CVE-2014-8989, being able to drop groups
>>>> without privilege using user namespaces.
>>>>
>>>> Cc: stable-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
>>>> Signed-off-by: "Eric W. Biederman" <ebiederm-aS9lmoZGLiVWk0Htik3J/w@public.gmane.org>
>>>> ---
>>>> include/linux/user_namespace.h | 9 +++++++++
>>>> kernel/groups.c | 7 ++++++-
>>>> 2 files changed, 15 insertions(+), 1 deletion(-)
>>>>
>>>> diff --git a/include/linux/user_namespace.h b/include/linux/user_namespace.h
>>>> index e95372654f09..41cc26e5a350 100644
>>>> --- a/include/linux/user_namespace.h
>>>> +++ b/include/linux/user_namespace.h
>>>> @@ -37,6 +37,15 @@ struct user_namespace {
>>>>
>>>> extern struct user_namespace init_user_ns;
>>>>
>>>> +static inline bool userns_gid_mappings_established(const struct user_namespace *ns)
>>>> +{
>>>> + bool established;
>>>> + smp_mb__before_atomic();
>>>> + established = ACCESS_ONCE(ns->gid_map.nr_extents) != 0;
>>>> + smp_mb__after_atomic();
>>>> + return established;
>>>> +}
>>>> +
>>>
>>> Maybe this is a stupid question, but why do we need all this magic
>>> around established = ... ?
>>> The purpose of this code is to check whether ns->gid_map.nr_extents != 0
>>> in a lock-free manner?
>>>
>>
>> See my other comment -- the ordering will matter at the end of the series.
>
> But ns->gid_map.nr_extents is not atomic, it is a plain u32.
> This confuses me.
Read Documentation/atomic_ops.txt a plain u32 is atomic by definiton.
Which is a little bit convoluted. However that is part of the of the
gid mapping path and I optimized that as far as I humanly could so that
calls like stat don't take a noticable slow donw.
On this path we don't particularly care except that I am using an the
existing data structure.
Eric
^ permalink raw reply
* Re: [CFT][PATCH 2/7] userns: Don't allow setgroups until a gid mapping has been setablished
From: Andy Lutomirski @ 2014-12-08 22:33 UTC (permalink / raw)
To: Eric W. Biederman
Cc: linux-man, Kees Cook, Linux API, Linux Containers, Josh Triplett,
stable, linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
Kenton Varda, LSM, Michael Kerrisk-manpages, Richard Weinberger,
Casey Schaufler, Andrew Morton
In-Reply-To: <87h9x5ok0h.fsf-JOvCrm2gF+uungPnsOpG7nhyD016LWXt@public.gmane.org>
On Mon, Dec 8, 2014 at 2:26 PM, Eric W. Biederman <ebiederm-aS9lmoZGLiVWk0Htik3J/w@public.gmane.org> wrote:
> Andy Lutomirski <luto-kltTT9wpgjJwATOyAt5JVQ@public.gmane.org> writes:
>
>> On Mon, Dec 8, 2014 at 2:07 PM, Eric W. Biederman <ebiederm-aS9lmoZGLiVWk0Htik3J/w@public.gmane.org> wrote:
>>>
>>> setgroups is unique in not needing a valid mapping before it can be called,
>>> in the case of setgroups(0, NULL) which drops all supplemental groups.
>>>
>>> The design of the user namespace assumes that CAP_SETGID can not actually
>>> be used until a gid mapping is established. Therefore add a helper function
>>> to see if the user namespace gid mapping has been established and call
>>> that function in the setgroups permission check.
>>>
>>> This is part of the fix for CVE-2014-8989, being able to drop groups
>>> without privilege using user namespaces.
>>>
>>> Cc: stable-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
>>> Signed-off-by: "Eric W. Biederman" <ebiederm-aS9lmoZGLiVWk0Htik3J/w@public.gmane.org>
>>> ---
>>> include/linux/user_namespace.h | 9 +++++++++
>>> kernel/groups.c | 7 ++++++-
>>> 2 files changed, 15 insertions(+), 1 deletion(-)
>>>
>>> diff --git a/include/linux/user_namespace.h b/include/linux/user_namespace.h
>>> index e95372654f09..41cc26e5a350 100644
>>> --- a/include/linux/user_namespace.h
>>> +++ b/include/linux/user_namespace.h
>>> @@ -37,6 +37,15 @@ struct user_namespace {
>>>
>>> extern struct user_namespace init_user_ns;
>>>
>>> +static inline bool userns_gid_mappings_established(const struct user_namespace *ns)
>>> +{
>>> + bool established;
>>> + smp_mb__before_atomic();
>>> + established = ACCESS_ONCE(ns->gid_map.nr_extents) != 0;
>>> + smp_mb__after_atomic();
>>> + return established;
>>> +}
>>
>> I don't think this works on all platforms. ACCESS_ONCE is not atomic
>> in the smp_mb__before_atomic sense.
>
> Documentation/atomic_ops.txt documents ACCESS_ONCE as being equivalent
> to atomic_read() and atomic_set(). smp_mb__before_atomic and
> smp_mb__after_atomic() are Documented as working with atomic_read and
> atomic_set. Maybe it is a stretch to use them but it doesn't seem like
> much of a stretch.
I don't fully understand the design there. I think this is an attempt
to work around the fact that test_bit is fully atomic on x86 but not
elsewhere.
>
> Further at this point I don't know that any barriers are strictly
> needed, beyond the ACCESS_ONCE. However since x86 does all of the
> ordering in hardware that I need I am not going to find any bugs that
> don't require a barrier.
>
> All I really want is the same level of barriers I would get if I used a
> spin-lock protected data structure so I don't need to worry about
> crazy smp issues that happen when the hardware decides it is safe to
> reorder things.
Use smp_rmb(), I think. It'll be obviously correct, and the
performance impact really doesn't matter.
Also, on platforms where this stuff matters, the barrier in
smp_mb__whatever will be a full fence, whereas smp_rmb may be lighter
weight.
--Andy
>
> Eric
>
>
>>> +
>>> #ifdef CONFIG_USER_NS
>>>
>>> static inline struct user_namespace *get_user_ns(struct user_namespace *ns)
>>> diff --git a/kernel/groups.c b/kernel/groups.c
>>> index 02d8a251c476..e0335e44f76a 100644
>>> --- a/kernel/groups.c
>>> +++ b/kernel/groups.c
>>> @@ -6,6 +6,7 @@
>>> #include <linux/slab.h>
>>> #include <linux/security.h>
>>> #include <linux/syscalls.h>
>>> +#include <linux/user_namespace.h>
>>> #include <asm/uaccess.h>
>>>
>>> /* init to 2 - one for init_task, one to ensure it is never freed */
>>> @@ -217,7 +218,11 @@ bool may_setgroups(void)
>>> {
>>> struct user_namespace *user_ns = current_user_ns();
>>>
>>> - return ns_capable(user_ns, CAP_SETGID);
>>> + /* It is not safe to use setgroups until a gid mapping in
>>> + * the user namespace has been established.
>>> + */
>>> + return userns_gid_mappings_established(user_ns) &&
>>> + ns_capable(user_ns, CAP_SETGID);
>>> }
>>>
>>> /*
>>> --
>>> 1.9.1
>>>
>>
>> --Andy
--
Andy Lutomirski
AMA Capital Management, LLC
^ permalink raw reply
* Re: [CFT][PATCH 2/7] userns: Don't allow setgroups until a gid mapping has been setablished
From: Richard Weinberger @ 2014-12-08 22:27 UTC (permalink / raw)
To: Andy Lutomirski
Cc: Eric W. Biederman, Linux Containers, Josh Triplett, Andrew Morton,
Kees Cook, Michael Kerrisk-manpages, Linux API, linux-man,
linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, LSM,
Casey Schaufler, Serge E. Hallyn, Kenton Varda, stable
In-Reply-To: <CALCETrXSG5QN8J3GtZjLdV6T7j_uaMG=fyTDt27vEK0NpGs9qg-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
Am 08.12.2014 um 23:25 schrieb Andy Lutomirski:
> On Mon, Dec 8, 2014 at 2:17 PM, Richard Weinberger <richard-/L3Ra7n9ekc@public.gmane.org> wrote:
>> Am 08.12.2014 um 23:07 schrieb Eric W. Biederman:
>>>
>>> setgroups is unique in not needing a valid mapping before it can be called,
>>> in the case of setgroups(0, NULL) which drops all supplemental groups.
>>>
>>> The design of the user namespace assumes that CAP_SETGID can not actually
>>> be used until a gid mapping is established. Therefore add a helper function
>>> to see if the user namespace gid mapping has been established and call
>>> that function in the setgroups permission check.
>>>
>>> This is part of the fix for CVE-2014-8989, being able to drop groups
>>> without privilege using user namespaces.
>>>
>>> Cc: stable-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
>>> Signed-off-by: "Eric W. Biederman" <ebiederm-aS9lmoZGLiVWk0Htik3J/w@public.gmane.org>
>>> ---
>>> include/linux/user_namespace.h | 9 +++++++++
>>> kernel/groups.c | 7 ++++++-
>>> 2 files changed, 15 insertions(+), 1 deletion(-)
>>>
>>> diff --git a/include/linux/user_namespace.h b/include/linux/user_namespace.h
>>> index e95372654f09..41cc26e5a350 100644
>>> --- a/include/linux/user_namespace.h
>>> +++ b/include/linux/user_namespace.h
>>> @@ -37,6 +37,15 @@ struct user_namespace {
>>>
>>> extern struct user_namespace init_user_ns;
>>>
>>> +static inline bool userns_gid_mappings_established(const struct user_namespace *ns)
>>> +{
>>> + bool established;
>>> + smp_mb__before_atomic();
>>> + established = ACCESS_ONCE(ns->gid_map.nr_extents) != 0;
>>> + smp_mb__after_atomic();
>>> + return established;
>>> +}
>>> +
>>
>> Maybe this is a stupid question, but why do we need all this magic
>> around established = ... ?
>> The purpose of this code is to check whether ns->gid_map.nr_extents != 0
>> in a lock-free manner?
>>
>
> See my other comment -- the ordering will matter at the end of the series.
But ns->gid_map.nr_extents is not atomic, it is a plain u32.
This confuses me.
Thanks,
//richard
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