* [PATCH 4/5] drm/panel: simple: Add support for KEO TX31D200VM0BAA
From: Jagan Teki @ 2018-01-02 9:02 UTC (permalink / raw)
To: linux-arm-kernel
In-Reply-To: <1514883738-16297-1-git-send-email-jagan@amarulasolutions.com>
This adds support for the Kaohsiung Opto-Electronics.,
TX31D200VM0BAA 12.3" HSXGA LVDS panel, which can be
supported by the simple panel driver.
Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
---
.../bindings/display/panel/koe,tx31d200vm0baa.txt | 7 ++++++
drivers/gpu/drm/panel/panel-simple.c | 27 ++++++++++++++++++++++
2 files changed, 34 insertions(+)
create mode 100644 Documentation/devicetree/bindings/display/panel/koe,tx31d200vm0baa.txt
diff --git a/Documentation/devicetree/bindings/display/panel/koe,tx31d200vm0baa.txt b/Documentation/devicetree/bindings/display/panel/koe,tx31d200vm0baa.txt
new file mode 100644
index 0000000..a51db2c
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/panel/koe,tx31d200vm0baa.txt
@@ -0,0 +1,7 @@
+Kaohsiung Opto-Electronics. TX31D200VM0BAA 12.3" HSXGA LVDS panel
+
+Required properties:
+- compatible: should be "koe,tx31d200vm0baa"
+
+This binding is compatible with the simple-panel binding, which is specified
+in simple-panel.txt in this directory.
diff --git a/drivers/gpu/drm/panel/panel-simple.c b/drivers/gpu/drm/panel/panel-simple.c
index 2ecc14b..8a0e4a8 100644
--- a/drivers/gpu/drm/panel/panel-simple.c
+++ b/drivers/gpu/drm/panel/panel-simple.c
@@ -1241,6 +1241,30 @@ static const struct panel_desc innolux_zj070na_01p = {
},
};
+static const struct display_timing koe_tx31d200vm0baa_timing = {
+ .pixelclock = { 39600000, 43200000, 48000000 },
+ .hactive = { 1280, 1280, 1280 },
+ .hfront_porch = { 16, 36, 56 },
+ .hback_porch = { 16, 36, 56 },
+ .hsync_len = { 8, 8, 8 },
+ .vactive = { 480, 480, 480 },
+ .vfront_porch = { 6, 21, 33.5 },
+ .vback_porch = { 6, 21, 33.5 },
+ .vsync_len = { 8, 8, 8 },
+ .flags = DISPLAY_FLAGS_DE_HIGH,
+};
+
+static const struct panel_desc koe_tx31d200vm0baa = {
+ .timings = &koe_tx31d200vm0baa_timing,
+ .num_timings = 1,
+ .bpc = 6,
+ .size = {
+ .width = 292,
+ .height = 109,
+ },
+ .bus_format = MEDIA_BUS_FMT_RGB666_1X7X3_SPWG,
+};
+
static const struct display_timing kyo_tcg121xglp_timing = {
.pixelclock = { 52000000, 65000000, 71000000 },
.hactive = { 1024, 1024, 1024 },
@@ -2151,6 +2175,9 @@ static const struct of_device_id platform_of_match[] = {
.compatible = "innolux,zj070na-01p",
.data = &innolux_zj070na_01p,
}, {
+ .compatible = "koe,tx31d200vm0baa",
+ .data = &koe_tx31d200vm0baa,
+ }, {
.compatible = "kyo,tcg121xglp",
.data = &kyo_tcg121xglp,
}, {
--
2.7.4
^ permalink raw reply related
* [PATCH 5/5] ARM: dts: imx6q-icore-ofcap12: Switch LVDS timings from panel-simple
From: Jagan Teki @ 2018-01-02 9:02 UTC (permalink / raw)
To: linux-arm-kernel
In-Reply-To: <1514883738-16297-1-git-send-email-jagan@amarulasolutions.com>
Switch to use koe_tx31d200vm0baa LVDS timings from
panel-simple instead hard coding the same in dts.
Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
---
arch/arm/boot/dts/imx6q-icore-ofcap12.dts | 31 +++++++++++++++++--------------
1 file changed, 17 insertions(+), 14 deletions(-)
diff --git a/arch/arm/boot/dts/imx6q-icore-ofcap12.dts b/arch/arm/boot/dts/imx6q-icore-ofcap12.dts
index 9e230f5..6e27c81 100644
--- a/arch/arm/boot/dts/imx6q-icore-ofcap12.dts
+++ b/arch/arm/boot/dts/imx6q-icore-ofcap12.dts
@@ -48,28 +48,31 @@
/ {
model = "Engicam i.CoreM6 Quad/Dual OpenFrame Capacitive touch 12 Kit";
compatible = "engicam,imx6-icore", "fsl,imx6q";
+
+ panel {
+ compatible = "koe,tx31d200vm0baa";
+ backlight = <&backlight_lvds>;
+
+ port {
+ panel_in: endpoint {
+ remote-endpoint = <&lvds0_out>;
+ };
+ };
+ };
};
&ldb {
status = "okay";
lvds-channel at 0 {
- fsl,data-mapping = "spwg";
- fsl,data-width = <18>;
+ reg = <0>;
status = "okay";
- display-timings {
- native-mode = <&timing0>;
- timing0: timing0 {
- clock-frequency = <46800000>;
- hactive = <1280>;
- vactive = <480>;
- hback-porch = <353>;
- hfront-porch = <47>;
- vback-porch = <39>;
- vfront-porch = <4>;
- hsync-len = <8>;
- vsync-len = <2>;
+ port at 4 {
+ reg = <4>;
+
+ lvds0_out: endpoint {
+ remote-endpoint = <&panel_in>;
};
};
};
--
2.7.4
^ permalink raw reply related
* [PATCH v9 8/9] KVM: arm/arm64: Avoid work when userspace iqchips are not used
From: Christoffer Dall @ 2018-01-02 9:09 UTC (permalink / raw)
To: linux-arm-kernel
In-Reply-To: <86d130qgaz.wl-marc.zyngier@arm.com>
On Wed, Dec 27, 2017 at 04:36:04PM +0000, Marc Zyngier wrote:
> On Wed, 20 Dec 2017 11:36:05 +0000,
> Christoffer Dall wrote:
> >
> > We currently check if the VM has a userspace irqchip in several places
> > along the critical path, and if so, we do some work which is only
> > required for having an irqchip in userspace. This is unfortunate, as we
> > could avoid doing any work entirely, if we didn't have to support
> > irqchip in userspace.
> >
> > Realizing the userspace irqchip on ARM is mostly a developer or hobby
> > feature, and is unlikely to be used in servers or other scenarios where
> > performance is a priority, we can use a refcounted static key to only
> > check the irqchip configuration when we have at least one VM that uses
> > an irqchip in userspace.
> >
> > Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
> > ---
> > arch/arm/include/asm/kvm_host.h | 2 ++
> > arch/arm64/include/asm/kvm_host.h | 2 ++
> > virt/kvm/arm/arch_timer.c | 6 ++--
> > virt/kvm/arm/arm.c | 59 ++++++++++++++++++++++++++++-----------
> > 4 files changed, 50 insertions(+), 19 deletions(-)
> >
> > diff --git a/arch/arm/include/asm/kvm_host.h b/arch/arm/include/asm/kvm_host.h
> > index a9f7d3f47134..6394fb99da7f 100644
> > --- a/arch/arm/include/asm/kvm_host.h
> > +++ b/arch/arm/include/asm/kvm_host.h
> > @@ -48,6 +48,8 @@
> > KVM_ARCH_REQ_FLAGS(0, KVM_REQUEST_WAIT | KVM_REQUEST_NO_WAKEUP)
> > #define KVM_REQ_IRQ_PENDING KVM_ARCH_REQ(1)
> >
> > +DECLARE_STATIC_KEY_FALSE(userspace_irqchip_in_use);
> > +
> > u32 *kvm_vcpu_reg(struct kvm_vcpu *vcpu, u8 reg_num, u32 mode);
> > int __attribute_const__ kvm_target_cpu(void);
> > int kvm_reset_vcpu(struct kvm_vcpu *vcpu);
> > diff --git a/arch/arm64/include/asm/kvm_host.h b/arch/arm64/include/asm/kvm_host.h
> > index ea6cb5b24258..e7218cf7df2a 100644
> > --- a/arch/arm64/include/asm/kvm_host.h
> > +++ b/arch/arm64/include/asm/kvm_host.h
> > @@ -47,6 +47,8 @@
> > KVM_ARCH_REQ_FLAGS(0, KVM_REQUEST_WAIT | KVM_REQUEST_NO_WAKEUP)
> > #define KVM_REQ_IRQ_PENDING KVM_ARCH_REQ(1)
> >
> > +DECLARE_STATIC_KEY_FALSE(userspace_irqchip_in_use);
> > +
> > int __attribute_const__ kvm_target_cpu(void);
> > int kvm_reset_vcpu(struct kvm_vcpu *vcpu);
> > int kvm_arch_dev_ioctl_check_extension(struct kvm *kvm, long ext);
> > diff --git a/virt/kvm/arm/arch_timer.c b/virt/kvm/arm/arch_timer.c
> > index d845d67b7062..cfcd0323deab 100644
> > --- a/virt/kvm/arm/arch_timer.c
> > +++ b/virt/kvm/arm/arch_timer.c
> > @@ -103,7 +103,8 @@ static irqreturn_t kvm_arch_timer_handler(int irq, void *dev_id)
> > if (kvm_timer_irq_can_fire(vtimer))
> > kvm_timer_update_irq(vcpu, true, vtimer);
> >
> > - if (unlikely(!irqchip_in_kernel(vcpu->kvm)))
> > + if (static_branch_unlikely(&userspace_irqchip_in_use) &&
> > + unlikely(!irqchip_in_kernel(vcpu->kvm)))
> > kvm_vtimer_update_mask_user(vcpu);
> >
> > return IRQ_HANDLED;
> > @@ -284,7 +285,8 @@ static void kvm_timer_update_irq(struct kvm_vcpu *vcpu, bool new_level,
> > trace_kvm_timer_update_irq(vcpu->vcpu_id, timer_ctx->irq.irq,
> > timer_ctx->irq.level);
> >
> > - if (likely(irqchip_in_kernel(vcpu->kvm))) {
> > + if (!static_branch_unlikely(&userspace_irqchip_in_use) &&
> > + likely(irqchip_in_kernel(vcpu->kvm))) {
> > ret = kvm_vgic_inject_irq(vcpu->kvm, vcpu->vcpu_id,
> > timer_ctx->irq.irq,
> > timer_ctx->irq.level,
> > diff --git a/virt/kvm/arm/arm.c b/virt/kvm/arm/arm.c
> > index 3610e132df8b..0cf0459134ff 100644
> > --- a/virt/kvm/arm/arm.c
> > +++ b/virt/kvm/arm/arm.c
> > @@ -74,6 +74,8 @@ static void kvm_arm_set_running_vcpu(struct kvm_vcpu *vcpu)
> > __this_cpu_write(kvm_arm_running_vcpu, vcpu);
> > }
> >
> > +DEFINE_STATIC_KEY_FALSE(userspace_irqchip_in_use);
> > +
> > /**
> > * kvm_arm_get_running_vcpu - get the vcpu running on the current CPU.
> > * Must be called from non-preemptible context
> > @@ -302,6 +304,8 @@ void kvm_arch_vcpu_free(struct kvm_vcpu *vcpu)
> >
> > void kvm_arch_vcpu_destroy(struct kvm_vcpu *vcpu)
> > {
> > + if (vcpu->arch.has_run_once && unlikely(!irqchip_in_kernel(vcpu->kvm)))
> > + static_branch_dec(&userspace_irqchip_in_use);
> > kvm_arch_vcpu_free(vcpu);
> > }
> >
> > @@ -522,14 +526,22 @@ static int kvm_vcpu_first_run_init(struct kvm_vcpu *vcpu)
> >
> > vcpu->arch.has_run_once = true;
> >
> > - /*
> > - * Map the VGIC hardware resources before running a vcpu the first
> > - * time on this VM.
> > - */
> > - if (unlikely(irqchip_in_kernel(kvm) && !vgic_ready(kvm))) {
> > - ret = kvm_vgic_map_resources(kvm);
> > - if (ret)
> > - return ret;
> > + if (likely(irqchip_in_kernel(kvm))) {
> > + /*
> > + * Map the VGIC hardware resources before running a vcpu the
> > + * first time on this VM.
> > + */
> > + if (unlikely(!vgic_ready(kvm))) {
> > + ret = kvm_vgic_map_resources(kvm);
> > + if (ret)
> > + return ret;
> > + }
> > + } else {
> > + /*
> > + * Tell the rest of the code that there are userspace irqchip
> > + * VMs in the wild.
> > + */
> > + static_branch_inc(&userspace_irqchip_in_use);
> > }
> >
> > ret = kvm_timer_enable(vcpu);
> > @@ -664,18 +676,29 @@ int kvm_arch_vcpu_ioctl_run(struct kvm_vcpu *vcpu, struct kvm_run *run)
> > kvm_vgic_flush_hwstate(vcpu);
> >
> > /*
> > - * If we have a singal pending, or need to notify a userspace
> > - * irqchip about timer or PMU level changes, then we exit (and
> > - * update the timer level state in kvm_timer_update_run
> > - * below).
> > + * Exit if we have a singal pending so that we can deliver the
>
> nit: s/singal/signal/
>
dang, one more.
> > + * signal to user space.
> > */
> > - if (signal_pending(current) ||
> > - kvm_timer_should_notify_user(vcpu) ||
> > - kvm_pmu_should_notify_user(vcpu)) {
> > + if (signal_pending(current)) {
> > ret = -EINTR;
> > run->exit_reason = KVM_EXIT_INTR;
> > }
> >
> > + /*
> > + * If we're using a userspace irqchip, then check if we need
> > + * to tell a userspace irqchip about timer or PMU level
> > + * changes and if so, exit to userspace (the actual level
> > + * state gets updated in kvm_timer_update_run and
> > + * kvm_pmu_update_run below.
>
> nit: missing closing parenthesis.
>
> > + */
> > + if (static_branch_unlikely(&userspace_irqchip_in_use)) {
> > + if (kvm_timer_should_notify_user(vcpu) ||
> > + kvm_pmu_should_notify_user(vcpu)) {
> > + ret = -EINTR;
> > + run->exit_reason = KVM_EXIT_INTR;
> > + }
> > + }
> > +
> > /*
> > * Ensure we set mode to IN_GUEST_MODE after we disable
> > * interrupts and before the final VCPU requests check.
> > @@ -688,7 +711,8 @@ int kvm_arch_vcpu_ioctl_run(struct kvm_vcpu *vcpu, struct kvm_run *run)
> > kvm_request_pending(vcpu)) {
> > vcpu->mode = OUTSIDE_GUEST_MODE;
> > kvm_pmu_sync_hwstate(vcpu);
> > - kvm_timer_sync_hwstate(vcpu);
> > + if (static_branch_unlikely(&userspace_irqchip_in_use))
> > + kvm_timer_sync_hwstate(vcpu);
> > kvm_vgic_sync_hwstate(vcpu);
> > local_irq_enable();
> > preempt_enable();
> > @@ -732,7 +756,8 @@ int kvm_arch_vcpu_ioctl_run(struct kvm_vcpu *vcpu, struct kvm_run *run)
> > * we don't want vtimer interrupts to race with syncing the
> > * timer virtual interrupt state.
> > */
> > - kvm_timer_sync_hwstate(vcpu);
> > + if (static_branch_unlikely(&userspace_irqchip_in_use))
> > + kvm_timer_sync_hwstate(vcpu);
> >
> > /*
> > * We may have taken a host interrupt in HYP mode (ie
> > --
> > 2.14.2
> >
>
> Other than the trivial nits above:
>
> Reviewed-by: Marc Zyngier <marc.zyngier@arm.com>
>
Thanks for this.
I've now queued this series and pushed it to kvmarm/next.
-Christoffer
^ permalink raw reply
* [PATCH 0/3] [v11] pinctrl: qcom: add support for sparse GPIOs
From: Linus Walleij @ 2018-01-02 9:16 UTC (permalink / raw)
To: linux-arm-kernel
In-Reply-To: <20171228161556.GG7997@codeaurora.org>
On Thu, Dec 28, 2017 at 5:15 PM, Stephen Boyd <sboyd@codeaurora.org> wrote:
> Patch 1 is still needed. Without that patch, we'll be poking each
> GPIO to figure out the direction at boot without checking any
> valid mask or calling the request APIs.
Aha, I just thought you'd augment that code to take valid GPIOs
into account.
Anyways, I left the patch in, so no worries.
> I don't see the part in
> debugfs where we show the direction of a GPIO if it hasn't been
> requested. Don't we skip over the unrequested GPIOs because of
> this code in gpiolib_dbg_show()?
>
> if (!test_bit(FLAG_REQUESTED, &gdesc->flags)) {
> ...
> continue;
> }
Yes you're right. This is more for lsgpio and the chardev side
of things for inspecting lines really.
Yours,
Linus Walleij
^ permalink raw reply
* [GIT PULL] Reset controller changes for v4.16
From: Philipp Zabel @ 2018-01-02 9:16 UTC (permalink / raw)
To: linux-arm-kernel
Dear arm-soc maintainers,
Happy New Year! Please consider merging this tag for v4.16. It adds
Meson-AXG?reset support and fixes a few issues with the reset include
header:?device_reset_optional is fixed to be really optional, unused
headers are pruned, and useless warnings and deprecated API calls are
removed.
regards
Philipp
The following changes since commit 4fbd8d194f06c8a3fd2af1ce560ddb31f7ec8323:
Linux 4.15-rc1 (2017-11-26 16:01:47 -0800)
are available in the git repository at:
git://git.pengutronix.de/git/pza/linux.git tags/reset-for-4.16
for you to fetch changes up to 0e5721f76252d69d424ec87a391d5ea37414b641:
reset: meson-axg: add compatible string for Meson-AXG SoC (2017-11-27 09:16:40 +0100)
----------------------------------------------------------------
Reset controller changes for v4.16
- Fix device_reset_optional to be really optional
- Header clean up: includes, warnings, and deprecated calls.
- Add driver and bindings for the Meson-AXG SoC reset controller
----------------------------------------------------------------
Masahiro Yamada (4):
reset: make device_reset_optional() really optional
reset: remove remaining WARN_ON() in <linux/reset.h>
reset: minimize the number of headers included from <linux/reset.h>
reset: remove reset_control_get(_optional)
Yixun Lan (2):
dt-bindings: reset: Add bindings for the Meson-AXG SoC Reset Controller
reset: meson-axg: add compatible string for Meson-AXG SoC
.../bindings/reset/amlogic,meson-reset.txt | 3 +-
drivers/reset/core.c | 9 +-
drivers/reset/reset-meson.c | 2 +
.../dt-bindings/reset/amlogic,meson-axg-reset.h | 124 +++++++++++++++++++++
include/linux/reset.h | 50 +++------
5 files changed, 149 insertions(+), 39 deletions(-)
create mode 100644 include/dt-bindings/reset/amlogic,meson-axg-reset.h
^ permalink raw reply
* [PATCH v2] ARM: dts: Add TVE/TVC and ILI9322 panel to DIR-685
From: Linus Walleij @ 2018-01-02 9:23 UTC (permalink / raw)
To: linux-arm-kernel
In-Reply-To: <b929dd94-44e8-517a-7934-e0deb035faf5@lechnology.com>
On Mon, Jan 1, 2018 at 8:14 PM, David Lechner <david@lechnology.com> wrote:
> On 12/22/2017 02:51 AM, Linus Walleij wrote:
>> @@ -115,7 +156,16 @@
>> soc {
>> flash at 30000000 {
>> - status = "okay";
>> + /*
>> + * Flash access is by default disabled, because it
>> + * collides with the Chip Enable signal for the
>> display
>> + * panel, that reuse the parallel flash Chip
>> Select 1
>> + * (CS1). Enabling flash makes graphics stop
>> working.
>> + *
>> + * We might be able to hack around this by letting
>> + * GPIO poke around in the flash controller
>> registers.
>> + */
>> + /* status = "okay"; */
>
>
> Isn't the default status = "okay"? So you would need to explicitly say
> status = "disabled".
This file includes gemini.dtsi where this node is defined, and there it
is set to status = "disabled", so we used to activate the dormant node
here with an explicit status = "okay".
Yours,
Linus Walleij
^ permalink raw reply
* [PATCH v2 1/2] arm64: dts: renesas: salvator-x: Remove renesas,no-ether-link property
From: Simon Horman @ 2018-01-02 9:38 UTC (permalink / raw)
To: linux-arm-kernel
In-Reply-To: <a002072f-dbe4-0b6a-a19f-08dd1ed3a8d2@mentor.com>
Hi Vladimir,
Happy New Year!
On Fri, Dec 22, 2017 at 12:22:09PM +0200, Vladimir Zapolskiy wrote:
> Hi Simon,
>
> On 12/22/2017 10:40 AM, Simon Horman wrote:
> > On Fri, Dec 22, 2017 at 09:32:03AM +0100, Simon Horman wrote:
> >> On Thu, Dec 21, 2017 at 05:18:58PM +0200, Vladimir Zapolskiy wrote:
> >>> From: Bogdan Mirea <Bogdan-Stefan_Mirea@mentor.com>
> >>>
> >>> The present change is a bug fix for AVB link iteratively up/down.
> >>>
> >>> Steps to reproduce:
> >>> - start AVB TX stream (Using aplay via MSE),
> >>> - disconnect+reconnect the eth cable,
> >>> - after a reconnection the eth connection goes iteratively up/down
> >>> without user interaction,
> >>> - this may heal after some seconds or even stay for minutes.
> >>>
> >>> As the documentation specifies, the "renesas,no-ether-link" option
> >>> should be used when a board does not provide a proper AVB_LINK signal.
> >>> There is no need for this option enabled on RCAR H3/M3 Salvator-X/XS
> >>> and ULCB starter kits since the AVB_LINK is correctly handled by HW.
> >>>
> >>> Choosing to keep or remove the "renesas,no-ether-link" option will
> >>> have impact on the code flow in the following ways:
> >>> - keeping this option enabled may lead to unexpected behavior since
> >>> the RX & TX are enabled/disabled directly from adjust_link function
> >>> without any HW interrogation,
> >>> - removing this option, the RX & TX will only be enabled/disabled after
> >>> HW interrogation. The HW check is made through the LMON pin in PSR
> >>> register which specifies AVB_LINK signal value (0 - at low level;
> >>> 1 - at high level).
> >>>
> >>> In conclusion, the present change is also a safety improvement because
> >>> it removes the "renesas,no-ether-link" option leading to a proper way
> >>> of detecting the link state based on HW interrogation and not on
> >>> software heuristic.
> >>>
> >>> Fixes: d25e8ff0d5aa ("arm64: dts: renesas: Extract common Salvator-X board support")
> >>
> >> The above shuffles the code around but does not introduce the problem
> >> as far as I can see. Instead I think we should use:
> >>
> >> Fixes: dc36965a8905 ("arm64: dts: r8a7796: salvator-x: Enable EthernetAVB")
> >> Fixes: 6fa501c549aa ("arm64: dts: r8a7795: enable EthernetAVB on Salvator-X")
> >>
> >>> Signed-off-by: Bogdan Mirea <Bogdan-Stefan_Mirea@mentor.com>
> >>> Signed-off-by: Vladimir Zapolskiy <vladimir_zapolskiy@mentor.com>
> >
> > I have applied this a fix for v4.15 with the updated Fixes tags above.
> >
>
> thank you, I was unsure if you expected to get changes which can be used
> as a base without patch application conflicts (my done choice) or changes,
> which originally intorduced the bug, but formally require slightly
> different fixes due to code changes in the middle. If it would be needed,
> hopefully linux-stable maintainers can resolve the trivial conflicts.
>
> Also you may find this information from the cover letter useful,
> someone may want to check the relevant board schematics and send
> similar fixes (if applicable after schematics review and testing):
>
> Note that DTS files for V3M Starter Kit, Draak and Eagle boards
> contain the same property, the files are untouched due to unavailable
> schematics to verify if the fix applies to these boards as well.
Thanks. I took a quick look and my findings so far are:
* Eagle: This approach seems applicable as AVB_LINK appears to be hooked up
* V3M Starter Kit: This approach seems applicable as AVB0_LINK appears to be
hooked up
* Draak: I don't seem to be able to locate documentation at this time
Are you interested in creating follow-up patches?
^ permalink raw reply
* [PATCH 16/67] powerpc: rename dma_direct_ to dma_nommu_
From: Michael Ellerman @ 2018-01-02 9:45 UTC (permalink / raw)
To: linux-arm-kernel
In-Reply-To: <20171229081911.2802-17-hch@lst.de>
Christoph Hellwig <hch@lst.de> writes:
> We want to use the dma_direct_ namespace for a generic implementation,
> so rename powerpc to the second best choice: dma_nommu_.
I'm not a fan of "nommu". Some of the users of direct ops *are* using an
IOMMU, they're just setting up a 1:1 mapping once at init time, rather
than mapping dynamically.
Though I don't have a good idea for a better name, maybe "1to1",
"linear", "premapped" ?
cheers
^ permalink raw reply
* [PATCH v6 00/10] omap: dmtimer: Move driver out of plat-omap
From: Keerthy @ 2018-01-02 10:09 UTC (permalink / raw)
To: linux-arm-kernel
The series moves dmtimer out of plat-omap to drivers/clocksource.
The series also does a bunch of changes to pwm-omap-dmtimer code
to adapt to the driver migration and clean up plat specific
pdata-quirks and use the dmtimer platform data.
Boot tested on DRA7-EVM and AM437X-GP-EVM.
Compile tested omap1_defconfig.
This is based on top of linux-next branch.
This is tested on on IGEPv2 (OMAP3430 based) by Ladis.
Changes from V5:
* Added couple of fixes from Ladis for pwm-dmtimer.
Changes from v4:
* Made OMAP_DM_TIMER config option silent.
* Changed the driver name to timer-dm.c
Changes from v3:
* Reverted to v2 approach of using dev_get_platdata to fetch dmtimer ops.
Changes from V2:
* Wrapped the inline functions in header file under OMAP2PLUS
* Added a new of helper function to fetch plat_data from of node.
Keerthy (8):
clocksource: dmtimer: Remove all the exports
arm: omap: timer: Wrap the inline functions under OMAP2PLUS define
arm: omap: Move dmtimer.h out of plat-omap
arm: OMAP: Move dmtimer driver out of plat-omap to drivers under
clocksource
dmtimer: Add timer ops to the platform data structure
clocksource: dmtimer: Populate the timer ops to the pdata
pwm: pwm-omap-dmtimer: Adapt driver to utilize dmtimer pdata ops
arm: omap: pdata-quirks: Remove unused timer pdata
Ladislav Michl (2):
clocksource: timer-dm: Hook device platform data if not already
assigned
clocksource: timer-dm: Check prescaler value
arch/arm/mach-omap1/pm.c | 2 +-
arch/arm/mach-omap1/timer.c | 2 +-
arch/arm/mach-omap2/omap_hwmod_2420_data.c | 2 +-
arch/arm/mach-omap2/omap_hwmod_2430_data.c | 2 +-
arch/arm/mach-omap2/omap_hwmod_2xxx_ipblock_data.c | 2 +-
arch/arm/mach-omap2/omap_hwmod_3xxx_data.c | 2 +-
arch/arm/mach-omap2/omap_hwmod_44xx_data.c | 2 +-
arch/arm/mach-omap2/omap_hwmod_54xx_data.c | 2 +-
arch/arm/mach-omap2/omap_hwmod_7xx_data.c | 2 +-
arch/arm/mach-omap2/omap_hwmod_81xx_data.c | 2 +-
arch/arm/mach-omap2/pdata-quirks.c | 32 -----------
arch/arm/mach-omap2/timer.c | 2 +-
arch/arm/plat-omap/Kconfig | 6 --
arch/arm/plat-omap/Makefile | 1 -
drivers/clocksource/Kconfig | 3 +
drivers/clocksource/Makefile | 1 +
.../dmtimer.c => drivers/clocksource/timer-dm.c | 67 +++++++++++-----------
drivers/pwm/pwm-omap-dmtimer.c | 39 +++++++------
.../include/plat => include/clocksource}/dmtimer.h | 8 ++-
include/linux/platform_data/dmtimer-omap.h | 38 ++++++++++++
20 files changed, 117 insertions(+), 100 deletions(-)
rename arch/arm/plat-omap/dmtimer.c => drivers/clocksource/timer-dm.c (94%)
rename {arch/arm/plat-omap/include/plat => include/clocksource}/dmtimer.h (97%)
--
1.9.1
^ permalink raw reply
* [PATCH v6 01/10] clocksource: dmtimer: Remove all the exports
From: Keerthy @ 2018-01-02 10:09 UTC (permalink / raw)
To: linux-arm-kernel
In-Reply-To: <1514887799-24605-1-git-send-email-j-keerthy@ti.com>
Remove all the unwanted exports from the driver
Signed-off-by: Keerthy <j-keerthy@ti.com>
Reviewed-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
Tested-by: Ladislav Michl <ladis@linux-mips.org>
---
arch/arm/plat-omap/dmtimer.c | 27 ---------------------------
1 file changed, 27 deletions(-)
diff --git a/arch/arm/plat-omap/dmtimer.c b/arch/arm/plat-omap/dmtimer.c
index d443e48..72565fc 100644
--- a/arch/arm/plat-omap/dmtimer.c
+++ b/arch/arm/plat-omap/dmtimer.c
@@ -302,7 +302,6 @@ struct omap_dm_timer *omap_dm_timer_request(void)
{
return _omap_dm_timer_request(REQUEST_ANY, NULL);
}
-EXPORT_SYMBOL_GPL(omap_dm_timer_request);
struct omap_dm_timer *omap_dm_timer_request_specific(int id)
{
@@ -315,7 +314,6 @@ struct omap_dm_timer *omap_dm_timer_request_specific(int id)
return _omap_dm_timer_request(REQUEST_BY_ID, &id);
}
-EXPORT_SYMBOL_GPL(omap_dm_timer_request_specific);
/**
* omap_dm_timer_request_by_cap - Request a timer by capability
@@ -330,7 +328,6 @@ struct omap_dm_timer *omap_dm_timer_request_by_cap(u32 cap)
{
return _omap_dm_timer_request(REQUEST_BY_CAP, &cap);
}
-EXPORT_SYMBOL_GPL(omap_dm_timer_request_by_cap);
/**
* omap_dm_timer_request_by_node - Request a timer by device-tree node
@@ -346,7 +343,6 @@ struct omap_dm_timer *omap_dm_timer_request_by_node(struct device_node *np)
return _omap_dm_timer_request(REQUEST_BY_NODE, np);
}
-EXPORT_SYMBOL_GPL(omap_dm_timer_request_by_node);
int omap_dm_timer_free(struct omap_dm_timer *timer)
{
@@ -359,7 +355,6 @@ int omap_dm_timer_free(struct omap_dm_timer *timer)
timer->reserved = 0;
return 0;
}
-EXPORT_SYMBOL_GPL(omap_dm_timer_free);
void omap_dm_timer_enable(struct omap_dm_timer *timer)
{
@@ -379,13 +374,11 @@ void omap_dm_timer_enable(struct omap_dm_timer *timer)
}
}
}
-EXPORT_SYMBOL_GPL(omap_dm_timer_enable);
void omap_dm_timer_disable(struct omap_dm_timer *timer)
{
pm_runtime_put_sync(&timer->pdev->dev);
}
-EXPORT_SYMBOL_GPL(omap_dm_timer_disable);
int omap_dm_timer_get_irq(struct omap_dm_timer *timer)
{
@@ -393,7 +386,6 @@ int omap_dm_timer_get_irq(struct omap_dm_timer *timer)
return timer->irq;
return -EINVAL;
}
-EXPORT_SYMBOL_GPL(omap_dm_timer_get_irq);
#if defined(CONFIG_ARCH_OMAP1)
#include <mach/hardware.h>
@@ -429,7 +421,6 @@ __u32 omap_dm_timer_modify_idlect_mask(__u32 inputmask)
return inputmask;
}
-EXPORT_SYMBOL_GPL(omap_dm_timer_modify_idlect_mask);
#else
@@ -439,7 +430,6 @@ struct clk *omap_dm_timer_get_fclk(struct omap_dm_timer *timer)
return timer->fclk;
return NULL;
}
-EXPORT_SYMBOL_GPL(omap_dm_timer_get_fclk);
__u32 omap_dm_timer_modify_idlect_mask(__u32 inputmask)
{
@@ -447,7 +437,6 @@ __u32 omap_dm_timer_modify_idlect_mask(__u32 inputmask)
return 0;
}
-EXPORT_SYMBOL_GPL(omap_dm_timer_modify_idlect_mask);
#endif
@@ -461,7 +450,6 @@ int omap_dm_timer_trigger(struct omap_dm_timer *timer)
omap_dm_timer_write_reg(timer, OMAP_TIMER_TRIGGER_REG, 0);
return 0;
}
-EXPORT_SYMBOL_GPL(omap_dm_timer_trigger);
int omap_dm_timer_start(struct omap_dm_timer *timer)
{
@@ -482,7 +470,6 @@ int omap_dm_timer_start(struct omap_dm_timer *timer)
timer->context.tclr = l;
return 0;
}
-EXPORT_SYMBOL_GPL(omap_dm_timer_start);
int omap_dm_timer_stop(struct omap_dm_timer *timer)
{
@@ -506,7 +493,6 @@ int omap_dm_timer_stop(struct omap_dm_timer *timer)
omap_dm_timer_disable(timer);
return 0;
}
-EXPORT_SYMBOL_GPL(omap_dm_timer_stop);
int omap_dm_timer_set_source(struct omap_dm_timer *timer, int source)
{
@@ -569,7 +555,6 @@ int omap_dm_timer_set_source(struct omap_dm_timer *timer, int source)
return ret;
}
-EXPORT_SYMBOL_GPL(omap_dm_timer_set_source);
int omap_dm_timer_set_load(struct omap_dm_timer *timer, int autoreload,
unsigned int load)
@@ -595,7 +580,6 @@ int omap_dm_timer_set_load(struct omap_dm_timer *timer, int autoreload,
omap_dm_timer_disable(timer);
return 0;
}
-EXPORT_SYMBOL_GPL(omap_dm_timer_set_load);
/* Optimized set_load which removes costly spin wait in timer_start */
int omap_dm_timer_set_load_start(struct omap_dm_timer *timer, int autoreload,
@@ -625,7 +609,6 @@ int omap_dm_timer_set_load_start(struct omap_dm_timer *timer, int autoreload,
timer->context.tcrr = load;
return 0;
}
-EXPORT_SYMBOL_GPL(omap_dm_timer_set_load_start);
int omap_dm_timer_set_match(struct omap_dm_timer *timer, int enable,
unsigned int match)
@@ -650,7 +633,6 @@ int omap_dm_timer_set_match(struct omap_dm_timer *timer, int enable,
omap_dm_timer_disable(timer);
return 0;
}
-EXPORT_SYMBOL_GPL(omap_dm_timer_set_match);
int omap_dm_timer_set_pwm(struct omap_dm_timer *timer, int def_on,
int toggle, int trigger)
@@ -676,7 +658,6 @@ int omap_dm_timer_set_pwm(struct omap_dm_timer *timer, int def_on,
omap_dm_timer_disable(timer);
return 0;
}
-EXPORT_SYMBOL_GPL(omap_dm_timer_set_pwm);
int omap_dm_timer_set_prescaler(struct omap_dm_timer *timer, int prescaler)
{
@@ -699,7 +680,6 @@ int omap_dm_timer_set_prescaler(struct omap_dm_timer *timer, int prescaler)
omap_dm_timer_disable(timer);
return 0;
}
-EXPORT_SYMBOL_GPL(omap_dm_timer_set_prescaler);
int omap_dm_timer_set_int_enable(struct omap_dm_timer *timer,
unsigned int value)
@@ -716,7 +696,6 @@ int omap_dm_timer_set_int_enable(struct omap_dm_timer *timer,
omap_dm_timer_disable(timer);
return 0;
}
-EXPORT_SYMBOL_GPL(omap_dm_timer_set_int_enable);
/**
* omap_dm_timer_set_int_disable - disable timer interrupts
@@ -747,7 +726,6 @@ int omap_dm_timer_set_int_disable(struct omap_dm_timer *timer, u32 mask)
omap_dm_timer_disable(timer);
return 0;
}
-EXPORT_SYMBOL_GPL(omap_dm_timer_set_int_disable);
unsigned int omap_dm_timer_read_status(struct omap_dm_timer *timer)
{
@@ -762,7 +740,6 @@ unsigned int omap_dm_timer_read_status(struct omap_dm_timer *timer)
return l;
}
-EXPORT_SYMBOL_GPL(omap_dm_timer_read_status);
int omap_dm_timer_write_status(struct omap_dm_timer *timer, unsigned int value)
{
@@ -773,7 +750,6 @@ int omap_dm_timer_write_status(struct omap_dm_timer *timer, unsigned int value)
return 0;
}
-EXPORT_SYMBOL_GPL(omap_dm_timer_write_status);
unsigned int omap_dm_timer_read_counter(struct omap_dm_timer *timer)
{
@@ -784,7 +760,6 @@ unsigned int omap_dm_timer_read_counter(struct omap_dm_timer *timer)
return __omap_dm_timer_read_counter(timer, timer->posted);
}
-EXPORT_SYMBOL_GPL(omap_dm_timer_read_counter);
int omap_dm_timer_write_counter(struct omap_dm_timer *timer, unsigned int value)
{
@@ -799,7 +774,6 @@ int omap_dm_timer_write_counter(struct omap_dm_timer *timer, unsigned int value)
timer->context.tcrr = value;
return 0;
}
-EXPORT_SYMBOL_GPL(omap_dm_timer_write_counter);
int omap_dm_timers_active(void)
{
@@ -816,7 +790,6 @@ int omap_dm_timers_active(void)
}
return 0;
}
-EXPORT_SYMBOL_GPL(omap_dm_timers_active);
static const struct of_device_id omap_timer_match[];
--
1.9.1
^ permalink raw reply related
* [PATCH v6 02/10] arm: omap: timer: Wrap the inline functions under OMAP2PLUS define
From: Keerthy @ 2018-01-02 10:09 UTC (permalink / raw)
To: linux-arm-kernel
In-Reply-To: <1514887799-24605-1-git-send-email-j-keerthy@ti.com>
Wrap the inline functions under OMAP2PLUS/OMAP1 defines.
Signed-off-by: Keerthy <j-keerthy@ti.com>
Tested-by: Ladislav Michl <ladis@linux-mips.org>
---
arch/arm/plat-omap/include/plat/dmtimer.h | 8 +++++++-
1 file changed, 7 insertions(+), 1 deletion(-)
diff --git a/arch/arm/plat-omap/include/plat/dmtimer.h b/arch/arm/plat-omap/include/plat/dmtimer.h
index dd79f30..862ad62 100644
--- a/arch/arm/plat-omap/include/plat/dmtimer.h
+++ b/arch/arm/plat-omap/include/plat/dmtimer.h
@@ -276,6 +276,12 @@ struct omap_dm_timer {
#define OMAP_TIMER_TICK_INT_MASK_COUNT_REG \
(_OMAP_TIMER_TICK_INT_MASK_COUNT_OFFSET | (WP_TOWR << WPSHIFT))
+/*
+ * The below are inlined to optimize code size for system timers. Other code
+ * should not need these@all, see
+ * include/linux/platform_data/pwm_omap_dmtimer.h
+ */
+#if defined(CONFIG_ARCH_OMAP1) || defined(CONFIG_ARCH_OMAP2PLUS)
static inline u32 __omap_dm_timer_read(struct omap_dm_timer *timer, u32 reg,
int posted)
{
@@ -414,5 +420,5 @@ static inline void __omap_dm_timer_write_status(struct omap_dm_timer *timer,
{
writel_relaxed(value, timer->irq_stat);
}
-
+#endif /* CONFIG_ARCH_OMAP1 || CONFIG_ARCH_OMAP2PLUS */
#endif /* __ASM_ARCH_DMTIMER_H */
--
1.9.1
^ permalink raw reply related
* [PATCH v6 03/10] arm: omap: Move dmtimer.h out of plat-omap
From: Keerthy @ 2018-01-02 10:09 UTC (permalink / raw)
To: linux-arm-kernel
In-Reply-To: <1514887799-24605-1-git-send-email-j-keerthy@ti.com>
The header file is currently under plat-omap directory
under arch/omap. Move this out to an accessible place.
No Code changes done to the header file.
Signed-off-by: Keerthy <j-keerthy@ti.com>
Reviewed-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
Tested-by: Ladislav Michl <ladis@linux-mips.org>
---
arch/arm/mach-omap1/pm.c | 2 +-
arch/arm/mach-omap1/timer.c | 2 +-
arch/arm/mach-omap2/omap_hwmod_2420_data.c | 2 +-
arch/arm/mach-omap2/omap_hwmod_2430_data.c | 2 +-
arch/arm/mach-omap2/omap_hwmod_2xxx_ipblock_data.c | 2 +-
arch/arm/mach-omap2/omap_hwmod_3xxx_data.c | 2 +-
arch/arm/mach-omap2/omap_hwmod_44xx_data.c | 2 +-
arch/arm/mach-omap2/omap_hwmod_54xx_data.c | 2 +-
arch/arm/mach-omap2/omap_hwmod_7xx_data.c | 2 +-
arch/arm/mach-omap2/omap_hwmod_81xx_data.c | 2 +-
arch/arm/mach-omap2/pdata-quirks.c | 2 +-
arch/arm/mach-omap2/timer.c | 2 +-
arch/arm/plat-omap/dmtimer.c | 2 +-
{arch/arm/plat-omap/include/plat => include/clocksource}/dmtimer.h | 0
14 files changed, 13 insertions(+), 13 deletions(-)
rename {arch/arm/plat-omap/include/plat => include/clocksource}/dmtimer.h (100%)
diff --git a/arch/arm/mach-omap1/pm.c b/arch/arm/mach-omap1/pm.c
index f1135bf..a07d47cf 100644
--- a/arch/arm/mach-omap1/pm.c
+++ b/arch/arm/mach-omap1/pm.c
@@ -55,7 +55,7 @@
#include <mach/tc.h>
#include <mach/mux.h>
#include <linux/omap-dma.h>
-#include <plat/dmtimer.h>
+#include <clocksource/dmtimer.h>
#include <mach/irqs.h>
diff --git a/arch/arm/mach-omap1/timer.c b/arch/arm/mach-omap1/timer.c
index 8fb1ec6..7c057ab 100644
--- a/arch/arm/mach-omap1/timer.c
+++ b/arch/arm/mach-omap1/timer.c
@@ -27,7 +27,7 @@
#include <linux/platform_device.h>
#include <linux/platform_data/dmtimer-omap.h>
-#include <plat/dmtimer.h>
+#include <clocksource/dmtimer.h>
#include "soc.h"
diff --git a/arch/arm/mach-omap2/omap_hwmod_2420_data.c b/arch/arm/mach-omap2/omap_hwmod_2420_data.c
index 1a15a34..45c1043 100644
--- a/arch/arm/mach-omap2/omap_hwmod_2420_data.c
+++ b/arch/arm/mach-omap2/omap_hwmod_2420_data.c
@@ -16,7 +16,7 @@
#include <linux/i2c-omap.h>
#include <linux/platform_data/spi-omap2-mcspi.h>
#include <linux/omap-dma.h>
-#include <plat/dmtimer.h>
+#include <clocksource/dmtimer.h>
#include "omap_hwmod.h"
#include "l3_2xxx.h"
diff --git a/arch/arm/mach-omap2/omap_hwmod_2430_data.c b/arch/arm/mach-omap2/omap_hwmod_2430_data.c
index 3801850..892ca58 100644
--- a/arch/arm/mach-omap2/omap_hwmod_2430_data.c
+++ b/arch/arm/mach-omap2/omap_hwmod_2430_data.c
@@ -18,7 +18,7 @@
#include <linux/platform_data/hsmmc-omap.h>
#include <linux/platform_data/spi-omap2-mcspi.h>
#include <linux/omap-dma.h>
-#include <plat/dmtimer.h>
+#include <clocksource/dmtimer.h>
#include "omap_hwmod.h"
#include "l3_2xxx.h"
diff --git a/arch/arm/mach-omap2/omap_hwmod_2xxx_ipblock_data.c b/arch/arm/mach-omap2/omap_hwmod_2xxx_ipblock_data.c
index beec4cd..82b51c0 100644
--- a/arch/arm/mach-omap2/omap_hwmod_2xxx_ipblock_data.c
+++ b/arch/arm/mach-omap2/omap_hwmod_2xxx_ipblock_data.c
@@ -11,7 +11,7 @@
#include <linux/platform_data/gpio-omap.h>
#include <linux/omap-dma.h>
-#include <plat/dmtimer.h>
+#include <clocksource/dmtimer.h>
#include <linux/platform_data/spi-omap2-mcspi.h>
#include "omap_hwmod.h"
diff --git a/arch/arm/mach-omap2/omap_hwmod_3xxx_data.c b/arch/arm/mach-omap2/omap_hwmod_3xxx_data.c
index 52c9d58..310aef5 100644
--- a/arch/arm/mach-omap2/omap_hwmod_3xxx_data.c
+++ b/arch/arm/mach-omap2/omap_hwmod_3xxx_data.c
@@ -25,7 +25,7 @@
#include "l4_3xxx.h"
#include <linux/platform_data/asoc-ti-mcbsp.h>
#include <linux/platform_data/spi-omap2-mcspi.h>
-#include <plat/dmtimer.h>
+#include <clocksource/dmtimer.h>
#include "soc.h"
#include "omap_hwmod.h"
diff --git a/arch/arm/mach-omap2/omap_hwmod_44xx_data.c b/arch/arm/mach-omap2/omap_hwmod_44xx_data.c
index c477096..22e0e38 100644
--- a/arch/arm/mach-omap2/omap_hwmod_44xx_data.c
+++ b/arch/arm/mach-omap2/omap_hwmod_44xx_data.c
@@ -30,7 +30,7 @@
#include <linux/platform_data/spi-omap2-mcspi.h>
#include <linux/platform_data/asoc-ti-mcbsp.h>
-#include <plat/dmtimer.h>
+#include <clocksource/dmtimer.h>
#include "omap_hwmod.h"
#include "omap_hwmod_common_data.h"
diff --git a/arch/arm/mach-omap2/omap_hwmod_54xx_data.c b/arch/arm/mach-omap2/omap_hwmod_54xx_data.c
index 988e7ea..530334e 100644
--- a/arch/arm/mach-omap2/omap_hwmod_54xx_data.c
+++ b/arch/arm/mach-omap2/omap_hwmod_54xx_data.c
@@ -26,7 +26,7 @@
#include <linux/omap-dma.h>
#include <linux/platform_data/spi-omap2-mcspi.h>
#include <linux/platform_data/asoc-ti-mcbsp.h>
-#include <plat/dmtimer.h>
+#include <clocksource/dmtimer.h>
#include "omap_hwmod.h"
#include "omap_hwmod_common_data.h"
diff --git a/arch/arm/mach-omap2/omap_hwmod_7xx_data.c b/arch/arm/mach-omap2/omap_hwmod_7xx_data.c
index d05e553d..adabdef 100644
--- a/arch/arm/mach-omap2/omap_hwmod_7xx_data.c
+++ b/arch/arm/mach-omap2/omap_hwmod_7xx_data.c
@@ -26,7 +26,7 @@
#include <linux/omap-dma.h>
#include <linux/platform_data/spi-omap2-mcspi.h>
#include <linux/platform_data/asoc-ti-mcbsp.h>
-#include <plat/dmtimer.h>
+#include <clocksource/dmtimer.h>
#include "omap_hwmod.h"
#include "omap_hwmod_common_data.h"
diff --git a/arch/arm/mach-omap2/omap_hwmod_81xx_data.c b/arch/arm/mach-omap2/omap_hwmod_81xx_data.c
index 84f1182..94f3bb1 100644
--- a/arch/arm/mach-omap2/omap_hwmod_81xx_data.c
+++ b/arch/arm/mach-omap2/omap_hwmod_81xx_data.c
@@ -18,7 +18,7 @@
#include <linux/platform_data/gpio-omap.h>
#include <linux/platform_data/hsmmc-omap.h>
#include <linux/platform_data/spi-omap2-mcspi.h>
-#include <plat/dmtimer.h>
+#include <clocksource/dmtimer.h>
#include "omap_hwmod_common_data.h"
#include "cm81xx.h"
diff --git a/arch/arm/mach-omap2/pdata-quirks.c b/arch/arm/mach-omap2/pdata-quirks.c
index 6b433fc..ad9df86 100644
--- a/arch/arm/mach-omap2/pdata-quirks.c
+++ b/arch/arm/mach-omap2/pdata-quirks.c
@@ -27,7 +27,7 @@
#include <linux/platform_data/pwm_omap_dmtimer.h>
#include <linux/platform_data/media/ir-rx51.h>
#include <linux/platform_data/asoc-ti-mcbsp.h>
-#include <plat/dmtimer.h>
+#include <clocksource/dmtimer.h>
#include "common.h"
#include "common-board-devices.h"
diff --git a/arch/arm/mach-omap2/timer.c b/arch/arm/mach-omap2/timer.c
index ece09c9..31c1b01 100644
--- a/arch/arm/mach-omap2/timer.c
+++ b/arch/arm/mach-omap2/timer.c
@@ -26,6 +26,7 @@
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*/
+#include <clocksource/dmtimer.h>
#include <linux/init.h>
#include <linux/time.h>
#include <linux/interrupt.h>
@@ -49,7 +50,6 @@
#include "omap_hwmod.h"
#include "omap_device.h"
#include <plat/counter-32k.h>
-#include <plat/dmtimer.h>
#include "omap-pm.h"
#include "soc.h"
diff --git a/arch/arm/plat-omap/dmtimer.c b/arch/arm/plat-omap/dmtimer.c
index 72565fc..afe1dc9 100644
--- a/arch/arm/plat-omap/dmtimer.c
+++ b/arch/arm/plat-omap/dmtimer.c
@@ -47,7 +47,7 @@
#include <linux/platform_device.h>
#include <linux/platform_data/dmtimer-omap.h>
-#include <plat/dmtimer.h>
+#include <clocksource/dmtimer.h>
static u32 omap_reserved_systimers;
static LIST_HEAD(omap_timer_list);
diff --git a/arch/arm/plat-omap/include/plat/dmtimer.h b/include/clocksource/dmtimer.h
similarity index 100%
rename from arch/arm/plat-omap/include/plat/dmtimer.h
rename to include/clocksource/dmtimer.h
--
1.9.1
^ permalink raw reply related
* [PATCH v6 04/10] arm: OMAP: Move dmtimer driver out of plat-omap to drivers under clocksource
From: Keerthy @ 2018-01-02 10:09 UTC (permalink / raw)
To: linux-arm-kernel
In-Reply-To: <1514887799-24605-1-git-send-email-j-keerthy@ti.com>
Move the dmtimer driver out of plat-omap to clocksource.
So that non-omap devices also could use this.
No Code changes done to the driver file only renamed to timer-dm.c.
Also removed the config dependencies for OMAP_DM_TIMER.
Signed-off-by: Keerthy <j-keerthy@ti.com>
Reviewed-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
Tested-by: Ladislav Michl <ladis@linux-mips.org>
---
arch/arm/plat-omap/Kconfig | 6 ------
arch/arm/plat-omap/Makefile | 1 -
drivers/clocksource/Kconfig | 3 +++
drivers/clocksource/Makefile | 1 +
arch/arm/plat-omap/dmtimer.c => drivers/clocksource/timer-dm.c | 0
5 files changed, 4 insertions(+), 7 deletions(-)
rename arch/arm/plat-omap/dmtimer.c => drivers/clocksource/timer-dm.c (100%)
diff --git a/arch/arm/plat-omap/Kconfig b/arch/arm/plat-omap/Kconfig
index 7276afe..afc1a1d 100644
--- a/arch/arm/plat-omap/Kconfig
+++ b/arch/arm/plat-omap/Kconfig
@@ -106,12 +106,6 @@ config OMAP3_L2_AUX_SECURE_SERVICE_SET_ID
help
PPA routine service ID for setting L2 auxiliary control register.
-config OMAP_DM_TIMER
- bool "Use dual-mode timer"
- depends on ARCH_OMAP16XX || ARCH_OMAP2PLUS
- help
- Select this option if you want to use OMAP Dual-Mode timers.
-
config OMAP_SERIAL_WAKE
bool "Enable wake-up events for serial ports"
depends on ARCH_OMAP1 && OMAP_MUX
diff --git a/arch/arm/plat-omap/Makefile b/arch/arm/plat-omap/Makefile
index 47e1867..7215ada 100644
--- a/arch/arm/plat-omap/Makefile
+++ b/arch/arm/plat-omap/Makefile
@@ -9,5 +9,4 @@ obj-y := sram.o dma.o counter_32k.o
# omap_device support (OMAP2+ only at the moment)
-obj-$(CONFIG_OMAP_DM_TIMER) += dmtimer.o
obj-$(CONFIG_OMAP_DEBUG_LEDS) += debug-leds.o
diff --git a/drivers/clocksource/Kconfig b/drivers/clocksource/Kconfig
index c729a88..3f799b2 100644
--- a/drivers/clocksource/Kconfig
+++ b/drivers/clocksource/Kconfig
@@ -21,6 +21,9 @@ config CLKEVT_I8253
config I8253_LOCK
bool
+config OMAP_DM_TIMER
+ bool
+
config CLKBLD_I8253
def_bool y if CLKSRC_I8253 || CLKEVT_I8253 || I8253_LOCK
diff --git a/drivers/clocksource/Makefile b/drivers/clocksource/Makefile
index 72711f1..27b5497 100644
--- a/drivers/clocksource/Makefile
+++ b/drivers/clocksource/Makefile
@@ -16,6 +16,7 @@ obj-$(CONFIG_EM_TIMER_STI) += em_sti.o
obj-$(CONFIG_CLKBLD_I8253) += i8253.o
obj-$(CONFIG_CLKSRC_MMIO) += mmio.o
obj-$(CONFIG_DIGICOLOR_TIMER) += timer-digicolor.o
+obj-$(CONFIG_OMAP_DM_TIMER) += timer-dm.o
obj-$(CONFIG_DW_APB_TIMER) += dw_apb_timer.o
obj-$(CONFIG_DW_APB_TIMER_OF) += dw_apb_timer_of.o
obj-$(CONFIG_FTTMR010_TIMER) += timer-fttmr010.o
diff --git a/arch/arm/plat-omap/dmtimer.c b/drivers/clocksource/timer-dm.c
similarity index 100%
rename from arch/arm/plat-omap/dmtimer.c
rename to drivers/clocksource/timer-dm.c
--
1.9.1
^ permalink raw reply related
* [PATCH v6 05/10] dmtimer: Add timer ops to the platform data structure
From: Keerthy @ 2018-01-02 10:09 UTC (permalink / raw)
To: linux-arm-kernel
In-Reply-To: <1514887799-24605-1-git-send-email-j-keerthy@ti.com>
Add timer ops to the platform data structure
Signed-off-by: Keerthy <j-keerthy@ti.com>
Reviewed-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
Tested-by: Ladislav Michl <ladis@linux-mips.org>
---
include/linux/platform_data/dmtimer-omap.h | 38 ++++++++++++++++++++++++++++++
1 file changed, 38 insertions(+)
diff --git a/include/linux/platform_data/dmtimer-omap.h b/include/linux/platform_data/dmtimer-omap.h
index a19b78d..a3e1794 100644
--- a/include/linux/platform_data/dmtimer-omap.h
+++ b/include/linux/platform_data/dmtimer-omap.h
@@ -20,12 +20,50 @@
#ifndef __PLATFORM_DATA_DMTIMER_OMAP_H__
#define __PLATFORM_DATA_DMTIMER_OMAP_H__
+struct omap_dm_timer_ops {
+ struct omap_dm_timer *(*request_by_node)(struct device_node *np);
+ struct omap_dm_timer *(*request_specific)(int timer_id);
+ struct omap_dm_timer *(*request)(void);
+
+ int (*free)(struct omap_dm_timer *timer);
+
+ void (*enable)(struct omap_dm_timer *timer);
+ void (*disable)(struct omap_dm_timer *timer);
+
+ int (*get_irq)(struct omap_dm_timer *timer);
+ int (*set_int_enable)(struct omap_dm_timer *timer,
+ unsigned int value);
+ int (*set_int_disable)(struct omap_dm_timer *timer, u32 mask);
+
+ struct clk *(*get_fclk)(struct omap_dm_timer *timer);
+
+ int (*start)(struct omap_dm_timer *timer);
+ int (*stop)(struct omap_dm_timer *timer);
+ int (*set_source)(struct omap_dm_timer *timer, int source);
+
+ int (*set_load)(struct omap_dm_timer *timer, int autoreload,
+ unsigned int value);
+ int (*set_match)(struct omap_dm_timer *timer, int enable,
+ unsigned int match);
+ int (*set_pwm)(struct omap_dm_timer *timer, int def_on,
+ int toggle, int trigger);
+ int (*set_prescaler)(struct omap_dm_timer *timer, int prescaler);
+
+ unsigned int (*read_counter)(struct omap_dm_timer *timer);
+ int (*write_counter)(struct omap_dm_timer *timer,
+ unsigned int value);
+ unsigned int (*read_status)(struct omap_dm_timer *timer);
+ int (*write_status)(struct omap_dm_timer *timer,
+ unsigned int value);
+};
+
struct dmtimer_platform_data {
/* set_timer_src - Only used for OMAP1 devices */
int (*set_timer_src)(struct platform_device *pdev, int source);
u32 timer_capability;
u32 timer_errata;
int (*get_context_loss_count)(struct device *);
+ struct omap_dm_timer_ops *timer_ops;
};
#endif /* __PLATFORM_DATA_DMTIMER_OMAP_H__ */
--
1.9.1
^ permalink raw reply related
* [PATCH v6 06/10] clocksource: dmtimer: Populate the timer ops to the pdata
From: Keerthy @ 2018-01-02 10:09 UTC (permalink / raw)
To: linux-arm-kernel
In-Reply-To: <1514887799-24605-1-git-send-email-j-keerthy@ti.com>
Add the timer ops to the platform data
Signed-off-by: Keerthy <j-keerthy@ti.com>
Reviewed-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
Tested-by: Ladislav Michl <ladis@linux-mips.org>
---
drivers/clocksource/timer-dm.c | 25 +++++++++++++++++++++++++
1 file changed, 25 insertions(+)
diff --git a/drivers/clocksource/timer-dm.c b/drivers/clocksource/timer-dm.c
index afe1dc9..1cbd954 100644
--- a/drivers/clocksource/timer-dm.c
+++ b/drivers/clocksource/timer-dm.c
@@ -922,8 +922,33 @@ static int omap_dm_timer_remove(struct platform_device *pdev)
return ret;
}
+static struct omap_dm_timer_ops dmtimer_ops = {
+ .request_by_node = omap_dm_timer_request_by_node,
+ .request_specific = omap_dm_timer_request_specific,
+ .request = omap_dm_timer_request,
+ .set_source = omap_dm_timer_set_source,
+ .get_irq = omap_dm_timer_get_irq,
+ .set_int_enable = omap_dm_timer_set_int_enable,
+ .set_int_disable = omap_dm_timer_set_int_disable,
+ .free = omap_dm_timer_free,
+ .enable = omap_dm_timer_enable,
+ .disable = omap_dm_timer_disable,
+ .get_fclk = omap_dm_timer_get_fclk,
+ .start = omap_dm_timer_start,
+ .stop = omap_dm_timer_stop,
+ .set_load = omap_dm_timer_set_load,
+ .set_match = omap_dm_timer_set_match,
+ .set_pwm = omap_dm_timer_set_pwm,
+ .set_prescaler = omap_dm_timer_set_prescaler,
+ .read_counter = omap_dm_timer_read_counter,
+ .write_counter = omap_dm_timer_write_counter,
+ .read_status = omap_dm_timer_read_status,
+ .write_status = omap_dm_timer_write_status,
+};
+
static const struct dmtimer_platform_data omap3plus_pdata = {
.timer_errata = OMAP_TIMER_ERRATA_I103_I767,
+ .timer_ops = &dmtimer_ops,
};
static const struct of_device_id omap_timer_match[] = {
--
1.9.1
^ permalink raw reply related
* [PATCH v6 07/10] clocksource: timer-dm: Hook device platform data if not already assigned
From: Keerthy @ 2018-01-02 10:09 UTC (permalink / raw)
To: linux-arm-kernel
In-Reply-To: <1514887799-24605-1-git-send-email-j-keerthy@ti.com>
From: Ladislav Michl <ladis@linux-mips.org>
In the case of device tree boot the device platform data is usually
NULL so hook the platform data obtained from the match.
As part of un-constify the platform_data pointer.
Signed-off-by: Ladislav Michl <ladis@linux-mips.org>
Signed-off-by: Keerthy <j-keerthy@ti.com>
---
drivers/clocksource/timer-dm.c | 10 ++++++----
1 file changed, 6 insertions(+), 4 deletions(-)
diff --git a/drivers/clocksource/timer-dm.c b/drivers/clocksource/timer-dm.c
index 1cbd954..60db173 100644
--- a/drivers/clocksource/timer-dm.c
+++ b/drivers/clocksource/timer-dm.c
@@ -806,14 +806,16 @@ static int omap_dm_timer_probe(struct platform_device *pdev)
struct omap_dm_timer *timer;
struct resource *mem, *irq;
struct device *dev = &pdev->dev;
- const struct of_device_id *match;
const struct dmtimer_platform_data *pdata;
int ret;
- match = of_match_device(of_match_ptr(omap_timer_match), dev);
- pdata = match ? match->data : dev->platform_data;
+ pdata = of_device_get_match_data(dev);
+ if (!pdata)
+ pdata = dev_get_platdata(dev);
+ else
+ dev->platform_data = (void *)pdata;
- if (!pdata && !dev->of_node) {
+ if (!pdata) {
dev_err(dev, "%s: no platform data.\n", __func__);
return -ENODEV;
}
--
1.9.1
^ permalink raw reply related
* [PATCH v6 08/10] pwm: pwm-omap-dmtimer: Adapt driver to utilize dmtimer pdata ops
From: Keerthy @ 2018-01-02 10:09 UTC (permalink / raw)
To: linux-arm-kernel
In-Reply-To: <1514887799-24605-1-git-send-email-j-keerthy@ti.com>
Adapt driver to utilize dmtimer pdata ops instead of pdata-quirks.
Signed-off-by: Keerthy <j-keerthy@ti.com>
Tested-by: Ladislav Michl <ladis@linux-mips.org>
---
drivers/pwm/pwm-omap-dmtimer.c | 39 ++++++++++++++++++++++-----------------
1 file changed, 22 insertions(+), 17 deletions(-)
diff --git a/drivers/pwm/pwm-omap-dmtimer.c b/drivers/pwm/pwm-omap-dmtimer.c
index 5ad42f3..3b27aff 100644
--- a/drivers/pwm/pwm-omap-dmtimer.c
+++ b/drivers/pwm/pwm-omap-dmtimer.c
@@ -23,6 +23,7 @@
#include <linux/mutex.h>
#include <linux/of.h>
#include <linux/of_platform.h>
+#include <linux/platform_data/dmtimer-omap.h>
#include <linux/platform_data/pwm_omap_dmtimer.h>
#include <linux/platform_device.h>
#include <linux/pm_runtime.h>
@@ -37,7 +38,7 @@ struct pwm_omap_dmtimer_chip {
struct pwm_chip chip;
struct mutex mutex;
pwm_omap_dmtimer *dm_timer;
- struct pwm_omap_dmtimer_pdata *pdata;
+ struct omap_dm_timer_ops *pdata;
struct platform_device *dm_timer_pdev;
};
@@ -242,19 +243,33 @@ static int pwm_omap_dmtimer_probe(struct platform_device *pdev)
{
struct device_node *np = pdev->dev.of_node;
struct device_node *timer;
+ struct platform_device *timer_pdev;
struct pwm_omap_dmtimer_chip *omap;
- struct pwm_omap_dmtimer_pdata *pdata;
+ struct dmtimer_platform_data *timer_pdata;
+ struct omap_dm_timer_ops *pdata;
pwm_omap_dmtimer *dm_timer;
u32 v;
int status;
- pdata = dev_get_platdata(&pdev->dev);
- if (!pdata) {
- dev_err(&pdev->dev, "Missing dmtimer platform data\n");
+ timer = of_parse_phandle(np, "ti,timers", 0);
+ if (!timer)
+ return -ENODEV;
+
+ timer_pdev = of_find_device_by_node(timer);
+ if (!timer_pdev) {
+ dev_err(&pdev->dev, "Unable to find Timer pdev\n");
+ return -ENODEV;
+ }
+
+ timer_pdata = dev_get_platdata(&timer_pdev->dev);
+ if (!timer_pdata) {
+ dev_err(&pdev->dev, "dmtimer pdata structure NULL\n");
return -EINVAL;
}
- if (!pdata->request_by_node ||
+ pdata = timer_pdata->timer_ops;
+
+ if (!pdata || !pdata->request_by_node ||
!pdata->free ||
!pdata->enable ||
!pdata->disable ||
@@ -270,10 +285,6 @@ static int pwm_omap_dmtimer_probe(struct platform_device *pdev)
return -EINVAL;
}
- timer = of_parse_phandle(np, "ti,timers", 0);
- if (!timer)
- return -ENODEV;
-
if (!of_get_property(timer, "ti,timer-pwm", NULL)) {
dev_err(&pdev->dev, "Missing ti,timer-pwm capability\n");
return -ENODEV;
@@ -291,13 +302,7 @@ static int pwm_omap_dmtimer_probe(struct platform_device *pdev)
omap->pdata = pdata;
omap->dm_timer = dm_timer;
-
- omap->dm_timer_pdev = of_find_device_by_node(timer);
- if (!omap->dm_timer_pdev) {
- dev_err(&pdev->dev, "Unable to find timer pdev\n");
- omap->pdata->free(dm_timer);
- return -EINVAL;
- }
+ omap->dm_timer_pdev = timer_pdev;
/*
* Ensure that the timer is stopped before we allow PWM core to call
--
1.9.1
^ permalink raw reply related
* [PATCH v6 09/10] arm: omap: pdata-quirks: Remove unused timer pdata
From: Keerthy @ 2018-01-02 10:09 UTC (permalink / raw)
To: linux-arm-kernel
In-Reply-To: <1514887799-24605-1-git-send-email-j-keerthy@ti.com>
Remove unused timer pdata.
Signed-off-by: Keerthy <j-keerthy@ti.com>
Reviewed-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
Tested-by: Ladislav Michl <ladis@linux-mips.org>
---
arch/arm/mach-omap2/pdata-quirks.c | 32 --------------------------------
1 file changed, 32 deletions(-)
diff --git a/arch/arm/mach-omap2/pdata-quirks.c b/arch/arm/mach-omap2/pdata-quirks.c
index ad9df86..e7d7fc7 100644
--- a/arch/arm/mach-omap2/pdata-quirks.c
+++ b/arch/arm/mach-omap2/pdata-quirks.c
@@ -24,10 +24,8 @@
#include <linux/platform_data/hsmmc-omap.h>
#include <linux/platform_data/iommu-omap.h>
#include <linux/platform_data/wkup_m3.h>
-#include <linux/platform_data/pwm_omap_dmtimer.h>
#include <linux/platform_data/media/ir-rx51.h>
#include <linux/platform_data/asoc-ti-mcbsp.h>
-#include <clocksource/dmtimer.h>
#include "common.h"
#include "common-board-devices.h"
@@ -477,33 +475,6 @@ void omap_auxdata_legacy_init(struct device *dev)
dev->platform_data = &twl_gpio_auxdata;
}
-/* Dual mode timer PWM callbacks platdata */
-#if IS_ENABLED(CONFIG_OMAP_DM_TIMER)
-static struct pwm_omap_dmtimer_pdata pwm_dmtimer_pdata = {
- .request_by_node = omap_dm_timer_request_by_node,
- .request_specific = omap_dm_timer_request_specific,
- .request = omap_dm_timer_request,
- .set_source = omap_dm_timer_set_source,
- .get_irq = omap_dm_timer_get_irq,
- .set_int_enable = omap_dm_timer_set_int_enable,
- .set_int_disable = omap_dm_timer_set_int_disable,
- .free = omap_dm_timer_free,
- .enable = omap_dm_timer_enable,
- .disable = omap_dm_timer_disable,
- .get_fclk = omap_dm_timer_get_fclk,
- .start = omap_dm_timer_start,
- .stop = omap_dm_timer_stop,
- .set_load = omap_dm_timer_set_load,
- .set_match = omap_dm_timer_set_match,
- .set_pwm = omap_dm_timer_set_pwm,
- .set_prescaler = omap_dm_timer_set_prescaler,
- .read_counter = omap_dm_timer_read_counter,
- .write_counter = omap_dm_timer_write_counter,
- .read_status = omap_dm_timer_read_status,
- .write_status = omap_dm_timer_write_status,
-};
-#endif
-
static struct ir_rx51_platform_data __maybe_unused rx51_ir_data = {
.set_max_mpu_wakeup_lat = omap_pm_set_max_mpu_wakeup_lat,
};
@@ -572,9 +543,6 @@ static void __init omap3_mcbsp_init(void) {}
OF_DEV_AUXDATA("ti,am4372-wkup-m3", 0x44d00000, "44d00000.wkup_m3",
&wkup_m3_data),
#endif
-#if IS_ENABLED(CONFIG_OMAP_DM_TIMER)
- OF_DEV_AUXDATA("ti,omap-dmtimer-pwm", 0, NULL, &pwm_dmtimer_pdata),
-#endif
#if defined(CONFIG_ARCH_OMAP4) || defined(CONFIG_SOC_OMAP5)
OF_DEV_AUXDATA("ti,omap4-iommu", 0x4a066000, "4a066000.mmu",
&omap4_iommu_pdata),
--
1.9.1
^ permalink raw reply related
* [PATCH v6 10/10] clocksource: timer-dm: Check prescaler value
From: Keerthy @ 2018-01-02 10:09 UTC (permalink / raw)
To: linux-arm-kernel
In-Reply-To: <1514887799-24605-1-git-send-email-j-keerthy@ti.com>
From: Ladislav Michl <ladis@linux-mips.org>
Invalid prescaler value is silently ignored. Fix that
by returning -EINVAL in such case. As invalid value
disabled use of the prescaler, use -1 explicitely for
that purpose.
Signed-off-by: Ladislav Michl <ladis@linux-mips.org>
---
drivers/clocksource/timer-dm.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/clocksource/timer-dm.c b/drivers/clocksource/timer-dm.c
index 60db173..01a9cb0 100644
--- a/drivers/clocksource/timer-dm.c
+++ b/drivers/clocksource/timer-dm.c
@@ -672,6 +672,9 @@ int omap_dm_timer_set_prescaler(struct omap_dm_timer *timer, int prescaler)
if (prescaler >= 0x00 && prescaler <= 0x07) {
l |= OMAP_TIMER_CTRL_PRE;
l |= prescaler << 2;
+ } else {
+ if (prescaler != -1)
+ return -EINVAL;
}
omap_dm_timer_write_reg(timer, OMAP_TIMER_CTRL_REG, l);
--
1.9.1
^ permalink raw reply related
* [PATCH 16/67] powerpc: rename dma_direct_ to dma_nommu_
From: Geert Uytterhoeven @ 2018-01-02 10:22 UTC (permalink / raw)
To: linux-arm-kernel
In-Reply-To: <878tdgtwzp.fsf@concordia.ellerman.id.au>
On Tue, Jan 2, 2018 at 10:45 AM, Michael Ellerman <mpe@ellerman.id.au> wrote:
> Christoph Hellwig <hch@lst.de> writes:
>
>> We want to use the dma_direct_ namespace for a generic implementation,
>> so rename powerpc to the second best choice: dma_nommu_.
>
> I'm not a fan of "nommu". Some of the users of direct ops *are* using an
> IOMMU, they're just setting up a 1:1 mapping once at init time, rather
> than mapping dynamically.
>
> Though I don't have a good idea for a better name, maybe "1to1",
> "linear", "premapped" ?
"identity"?
Gr{oetje,eeting}s,
Geert
--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert at linux-m68k.org
In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
-- Linus Torvalds
^ permalink raw reply
* [PATCH 29/67] dma-direct: use node local allocations for coherent memory
From: Geert Uytterhoeven @ 2018-01-02 10:29 UTC (permalink / raw)
To: linux-arm-kernel
In-Reply-To: <20171229081911.2802-30-hch@lst.de>
Missing patch description explaining why this change is desirable.
On Fri, Dec 29, 2017 at 9:18 AM, Christoph Hellwig <hch@lst.de> wrote:
> --- a/lib/dma-direct.c
> +++ b/lib/dma-direct.c
> @@ -39,7 +39,7 @@ static void *dma_direct_alloc(struct device *dev, size_t size,
> if (gfpflags_allow_blocking(gfp))
> page = dma_alloc_from_contiguous(dev, count, page_order, gfp);
> if (!page)
> - page = alloc_pages(gfp, page_order);
> + page = alloc_pages_node(dev_to_node(dev), gfp, page_order);
> if (!page)
> return NULL;
>
Gr{oetje,eeting}s,
Geert
--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert at linux-m68k.org
In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
-- Linus Torvalds
^ permalink raw reply
* [PATCH] arch: drop duplicate exports of abort()
From: Arnd Bergmann @ 2018-01-02 10:31 UTC (permalink / raw)
To: linux-arm-kernel
We now have exports in both architecture code in in common code,
which causes a link failure when symbol versioning is eanbled, on
four architectures:
kernel/exit.o: In function `__crc_abort':
exit.c:(*ABS*+0xc0e2ec8b): multiple definition of `__crc_abort'
This removes the four architecture specific exports and only
leaves the export next to the __weak symbol.
Fixes: mmotm ("kernel/exit.c: export abort() to modules")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
---
Andrew, can you apply this to -mm on top of the other patch?
---
arch/arc/kernel/traps.c | 1 -
arch/arm/kernel/traps.c | 1 -
arch/m32r/kernel/traps.c | 1 -
arch/unicore32/kernel/traps.c | 1 -
4 files changed, 4 deletions(-)
diff --git a/arch/arc/kernel/traps.c b/arch/arc/kernel/traps.c
index 51a55b06cb2a..133a4dae41fe 100644
--- a/arch/arc/kernel/traps.c
+++ b/arch/arc/kernel/traps.c
@@ -169,4 +169,3 @@ void abort(void)
{
__asm__ __volatile__("trap_s 5\n");
}
-EXPORT_SYMBOL(abort);
diff --git a/arch/arm/kernel/traps.c b/arch/arm/kernel/traps.c
index e344bdd2e5ac..5e3633c24e63 100644
--- a/arch/arm/kernel/traps.c
+++ b/arch/arm/kernel/traps.c
@@ -793,7 +793,6 @@ void abort(void)
/* if that doesn't kill us, halt */
panic("Oops failed to kill thread");
}
-EXPORT_SYMBOL(abort);
void __init trap_init(void)
{
diff --git a/arch/m32r/kernel/traps.c b/arch/m32r/kernel/traps.c
index cb79fba79d43..b88a8dd14933 100644
--- a/arch/m32r/kernel/traps.c
+++ b/arch/m32r/kernel/traps.c
@@ -122,7 +122,6 @@ void abort(void)
/* if that doesn't kill us, halt */
panic("Oops failed to kill thread");
}
-EXPORT_SYMBOL(abort);
void __init trap_init(void)
{
diff --git a/arch/unicore32/kernel/traps.c b/arch/unicore32/kernel/traps.c
index 5f25b39f04d4..c4ac6043ebb0 100644
--- a/arch/unicore32/kernel/traps.c
+++ b/arch/unicore32/kernel/traps.c
@@ -298,7 +298,6 @@ void abort(void)
/* if that doesn't kill us, halt */
panic("Oops failed to kill thread");
}
-EXPORT_SYMBOL(abort);
void __init trap_init(void)
{
--
2.9.0
^ permalink raw reply related
* [PATCH 02/67] alpha: mark jensen as broken
From: Geert Uytterhoeven @ 2018-01-02 10:36 UTC (permalink / raw)
To: linux-arm-kernel
In-Reply-To: <20171229081911.2802-3-hch@lst.de>
Hi Christoph,
On Fri, Dec 29, 2017 at 9:18 AM, Christoph Hellwig <hch@lst.de> wrote:
> CONFIG_ALPHA_JENSEN has failed to compile since commit aca05038
> ("alpha/dma: use common noop dma ops"), so mark it as broken.
unknown revision or path not in the working tree.
Ah, you dropped the leading "6":
6aca0503847f6329460b15b3ab2b0e30bb752793
is less than 2 years old, though.
>
> Signed-off-by: Christoph Hellwig <hch@lst.de>
> ---
> arch/alpha/Kconfig | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/arch/alpha/Kconfig b/arch/alpha/Kconfig
> index b31b974a03cb..e96adcbcab41 100644
> --- a/arch/alpha/Kconfig
> +++ b/arch/alpha/Kconfig
> @@ -209,6 +209,7 @@ config ALPHA_EIGER
>
> config ALPHA_JENSEN
> bool "Jensen"
> + depends on BROKEN
> help
> DEC PC 150 AXP (aka Jensen): This is a very old Digital system - one
> of the first-generation Alpha systems. A number of these systems
Gr{oetje,eeting}s,
Geert
--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert at linux-m68k.org
In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
-- Linus Torvalds
^ permalink raw reply
* [PATCH 22/67] dma-mapping: clear harmful GFP_* flags in common code
From: Geert Uytterhoeven @ 2018-01-02 10:38 UTC (permalink / raw)
To: linux-arm-kernel
In-Reply-To: <20171229081911.2802-23-hch@lst.de>
On Fri, Dec 29, 2017 at 9:18 AM, Christoph Hellwig <hch@lst.de> wrote:
> Life the code from x86 so that we behave consistently. In the future we
> should probably warn if any of these is set.
>
> Signed-off-by: Christoph Hellwig <hch@lst.de>
For m68k:
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Gr{oetje,eeting}s,
Geert
--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert at linux-m68k.org
In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
-- Linus Torvalds
^ permalink raw reply
* [PATCH 05/67] dma-mapping: replace PCI_DMA_BUS_IS_PHYS with a flag in struct dma_map_ops
From: Geert Uytterhoeven @ 2018-01-02 10:39 UTC (permalink / raw)
To: linux-arm-kernel
In-Reply-To: <20171229081911.2802-6-hch@lst.de>
On Fri, Dec 29, 2017 at 9:18 AM, Christoph Hellwig <hch@lst.de> wrote:
> The current PCI_DMA_BUS_IS_PHYS decided if a dma implementation is bound
> by the dma mask in the device because it directly maps to a physical
> address range (modulo an offset in the device), or if it is virtualized
> by an iommu and can map any address (that includes virtual iommus like
> swiotlb). The problem with this scheme is that it is per-architecture and
> not per dma_ops instance, and we are growing more and more setups that
> have multiple different dma operations in use on a single system, for
> which this scheme can't provide a correct answer. Depending on the
> architecture that means we either get a false positive or false negative
> at the moment.
>
> This patch instead extents the is_phys flag in struct dma_map_ops that
> is currently only used by a few architectures to be used tree wide.
>
> Note that this means that we now need a struct device parent in the
> Scsi_Host or netdevice. Every modern driver has these, but there might
> still be a few outdated legacy drivers out there, which now won't make
> an intelligent decision.
>
> Signed-off-by: Christoph Hellwig <hch@lst.de>
For m68k:
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Gr{oetje,eeting}s,
Geert
--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert at linux-m68k.org
In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
-- Linus Torvalds
^ permalink raw reply
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