[PATCH v1 0/3] ThunderX platform support

[PATCH v1 0/3] ThunderX platform support

[vijay.kilari]

From: Vijaya Kumar K <Vijaya.Kumar@caviumnetworks.com>

Changes in v1:
 - Add support for ThunderX platform
 - Add early printk support
 - Add psci-0.2 check while parsing dt node 

Vijaya Kumar K (3):
  xen/arm: Add ThunderX platform support
  xen/arm: Add early printk support for ThunderX platform
  xen/arm: check for psci-0.2 dt node

 xen/arch/arm/Rules.mk             |    4 +++
 xen/arch/arm/domain_build.c       |    1 +
 xen/arch/arm/platforms/Makefile   |    1 +
 xen/arch/arm/platforms/thunderx.c |   66 +++++++++++++++++++++++++++++++++++++
 4 files changed, 72 insertions(+)
 create mode 100644 xen/arch/arm/platforms/thunderx.c

-- 
1.7.9.5

[PATCH v1 1/3] xen/arm: Add ThunderX platform support

[vijay.kilari]

From: Vijaya Kumar K <Vijaya.Kumar@caviumnetworks.com>

Add basic support for Cavium ThunderX platform

Signed-off-by: Vijaya Kumar K <Vijaya.Kumar@caviumnetworks.com>
---
 xen/arch/arm/platforms/Makefile   |    1 +
 xen/arch/arm/platforms/thunderx.c |   66 +++++++++++++++++++++++++++++++++++++
 2 files changed, 67 insertions(+)

diff --git a/xen/arch/arm/platforms/Makefile b/xen/arch/arm/platforms/Makefile
index e173fec..d9f98f9 100644
--- a/xen/arch/arm/platforms/Makefile
+++ b/xen/arch/arm/platforms/Makefile
@@ -7,3 +7,4 @@ obj-$(CONFIG_ARM_32) += sunxi.o
 obj-$(CONFIG_ARM_32) += rcar2.o
 obj-$(CONFIG_ARM_64) += seattle.o
 obj-$(CONFIG_ARM_64) += xgene-storm.o
+obj-$(CONFIG_ARM_64) += thunderx.o
diff --git a/xen/arch/arm/platforms/thunderx.c b/xen/arch/arm/platforms/thunderx.c
new file mode 100644
index 0000000..96560e1
--- /dev/null
+++ b/xen/arch/arm/platforms/thunderx.c
@@ -0,0 +1,66 @@
+/*
+ * xen/arch/arm/platforms/thunderx.c
+ *
+ * Cavium Thunder specific settings
+ *
+ * Vijaya Kumar K <Vijaya.Kumar@caviumnetworks.com>
+ * Copyright (c) 2015 Cavium Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * 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 <asm/platform.h>
+
+static int thunderx_specific_mapping(struct domain *d)
+{
+    uint64_t addr, size;
+    int res;
+
+    /* Mappings GSER region required for dom0 */
+    addr = 0x87e090000000;
+    size = 0xd000000;
+
+    res = map_mmio_regions(d,
+                           paddr_to_pfn(addr & PAGE_MASK),
+                           DIV_ROUND_UP(size, PAGE_SIZE),
+                           paddr_to_pfn(addr & PAGE_MASK));
+    if ( res )
+    {
+         printk(XENLOG_ERR "Unable to map to dom%d region"
+                " 0x%"PRIx64" - 0x%"PRIx64"\n",
+                d->domain_id,
+                addr & PAGE_MASK, PAGE_ALIGN(addr + size) - 1);
+    }
+
+    return 0;
+}
+
+static const char * const thunderx_dt_compat[] __initconst =
+{
+    "cavium,thunder-88xx",
+    NULL
+};
+
+PLATFORM_START(thunderx, "THUNDERX")
+    .compatible = thunderx_dt_compat,
+    .specific_mapping = thunderx_specific_mapping,
+    .dom0_gnttab_start = 0x40000000000,
+    .dom0_gnttab_size = 0x20000,
+PLATFORM_END
+
+/*
+ * Local variables:
+ * mode: C
+ * c-file-style: "BSD"
+ * c-basic-offset: 4
+ * indent-tabs-mode: nil
+ * End:
+ */
-- 
1.7.9.5

[PATCH v1 2/3] xen/arm: Add early printk support for ThunderX platform

[vijay.kilari]

From: Vijaya Kumar K <Vijaya.Kumar@caviumnetworks.com>

ThunderX platform uses pl011 uart.

Signed-off-by: Vijaya Kumar K <Vijaya.Kumar@caviumnetworks.com>
---
 xen/arch/arm/Rules.mk |    4 ++++
 1 file changed, 4 insertions(+)

diff --git a/xen/arch/arm/Rules.mk b/xen/arch/arm/Rules.mk
index c7bd227..54efa91 100644
--- a/xen/arch/arm/Rules.mk
+++ b/xen/arch/arm/Rules.mk
@@ -113,6 +113,10 @@ ifeq ($(CONFIG_EARLY_PRINTK), lager)
 EARLY_PRINTK_INC := scif
 EARLY_UART_BASE_ADDRESS := 0xe6e60000
 endif
+ifeq ($(CONFIG_EARLY_PRINTK), thunderx)
+EARLY_PRINTK_INC := pl011
+EARLY_UART_BASE_ADDRESS := 0x87e024000000
+endif
 
 ifneq ($(EARLY_PRINTK_INC),)
 EARLY_PRINTK := y
-- 
1.7.9.5

[PATCH v1 3/3] xen/arm: check for psci-0.2 dt node

[vijay.kilari]

From: Vijaya Kumar K <Vijaya.Kumar@caviumnetworks.com>

Add psci-0.2 compatibility check while parsing psci dt node

Signed-off-by: Vijaya Kumar K <Vijaya.Kumar@caviumnetworks.com>
---
 xen/arch/arm/domain_build.c |    1 +
 1 file changed, 1 insertion(+)

diff --git a/xen/arch/arm/domain_build.c b/xen/arch/arm/domain_build.c
index c2dcb49..0be639b 100644
--- a/xen/arch/arm/domain_build.c
+++ b/xen/arch/arm/domain_build.c
@@ -1029,6 +1029,7 @@ static int handle_node(struct domain *d, struct kernel_info *kinfo,
         DT_MATCH_COMPATIBLE("xen,multiboot-module"),
         DT_MATCH_COMPATIBLE("multiboot,module"),
         DT_MATCH_COMPATIBLE("arm,psci"),
+        DT_MATCH_COMPATIBLE("arm,psci-0.2"),
         DT_MATCH_PATH("/cpus"),
         DT_MATCH_TYPE("memory"),
         /* The memory mapped timer is not supported by Xen. */
-- 
1.7.9.5

Re: [PATCH v1 0/3] ThunderX platform support

[Vijay Kilari]

Please ignore this series. I have missed to update
processor_implementers[] with cavium in xen/arch/arm/setup.c

Sending v2 version

On Mon, Feb 16, 2015 at 2:36 PM,  <vijay.kilari@gmail.com> wrote:
> From: Vijaya Kumar K <Vijaya.Kumar@caviumnetworks.com>
>
> Changes in v1:
>  - Add support for ThunderX platform
>  - Add early printk support
>  - Add psci-0.2 check while parsing dt node
>
> Vijaya Kumar K (3):
>   xen/arm: Add ThunderX platform support
>   xen/arm: Add early printk support for ThunderX platform
>   xen/arm: check for psci-0.2 dt node
>
>  xen/arch/arm/Rules.mk             |    4 +++
>  xen/arch/arm/domain_build.c       |    1 +
>  xen/arch/arm/platforms/Makefile   |    1 +
>  xen/arch/arm/platforms/thunderx.c |   66 +++++++++++++++++++++++++++++++++++++
>  4 files changed, 72 insertions(+)
>  create mode 100644 xen/arch/arm/platforms/thunderx.c
>
> --
> 1.7.9.5
>

Re: [PATCH v1 3/3] xen/arm: check for psci-0.2 dt node

[Julien Grall]

Hi Vijay,

On 16/02/15 09:06, vijay.kilari@gmail.com wrote:
> From: Vijaya Kumar K <Vijaya.Kumar@caviumnetworks.com>
> 
> Add psci-0.2 compatibility check while parsing psci dt node

Reading the commit title/description gives the impression that you are
adding support with PSCI 0.2.

While it has been added in Xen 4.5, this patch avoids to copy the PSCI
0.2 node from the host DT to DOM0 DT (because we generate it).

Please update the commit title/message according the behavior of the code.

Regards,

> Signed-off-by: Vijaya Kumar K <Vijaya.Kumar@caviumnetworks.com>
> ---
>  xen/arch/arm/domain_build.c |    1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/xen/arch/arm/domain_build.c b/xen/arch/arm/domain_build.c
> index c2dcb49..0be639b 100644
> --- a/xen/arch/arm/domain_build.c
> +++ b/xen/arch/arm/domain_build.c
> @@ -1029,6 +1029,7 @@ static int handle_node(struct domain *d, struct kernel_info *kinfo,
>          DT_MATCH_COMPATIBLE("xen,multiboot-module"),
>          DT_MATCH_COMPATIBLE("multiboot,module"),
>          DT_MATCH_COMPATIBLE("arm,psci"),
> +        DT_MATCH_COMPATIBLE("arm,psci-0.2"),
>          DT_MATCH_PATH("/cpus"),
>          DT_MATCH_TYPE("memory"),
>          /* The memory mapped timer is not supported by Xen. */
> 


-- 
Julien Grall