[PATCH V3] arm/gic-v3: Fix ACPI probe fail on GICv4 hardware

[PATCH V3] arm/gic-v3: Fix ACPI probe fail on GICv4 hardware

[Shanker Donthineni]

The current driver ACPI probe fails on hardware which has GICv4
version, even though it is fully compatible to GICv3. This patch
fixed the issue by registering the same probe function for GICv4
hardware.

Signed-off-by: Shanker Donthineni <shankerd@codeaurora.org>
---
Changes since v2:
    - Keep it the GICv4 version number inside driver and export outside as GICv3.

Changes since v1:
    - Edit commit text.
    - Fix BUG() in xen/arch/arm/domain.c 

 xen/arch/arm/gic-v3.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/xen/arch/arm/gic-v3.c b/xen/arch/arm/gic-v3.c
index a095064..982c632 100644
--- a/xen/arch/arm/gic-v3.c
+++ b/xen/arch/arm/gic-v3.c
@@ -1608,6 +1608,11 @@ ACPI_DEVICE_START(agicv3, "GICv3", DEVICE_GIC)
         .class_type = ACPI_MADT_GIC_VERSION_V3,
         .init = gicv3_acpi_preinit,
 ACPI_DEVICE_END
+
+ACPI_DEVICE_START(agicv4, "GICv4", DEVICE_GIC)
+        .class_type = ACPI_MADT_GIC_VERSION_V4,
+        .init = gicv3_acpi_preinit,
+ACPI_DEVICE_END
 #endif
 
 /*
-- 
Qualcomm Technologies, Inc. on behalf of Qualcomm Innovation Center, Inc. 
Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum, 
a Linux Foundation Collaborative Project


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Re: [PATCH V3] arm/gic-v3: Fix ACPI probe fail on GICv4 hardware

[Julien Grall]

Hi Shanker,

On 27/05/16 19:32, Shanker Donthineni wrote:
> The current driver ACPI probe fails on hardware which has GICv4
> version, even though it is fully compatible to GICv3. This patch
> fixed the issue by registering the same probe function for GICv4
> hardware.
>
> Signed-off-by: Shanker Donthineni <shankerd@codeaurora.org>

Acked-by: Julien Grall <julien.grall@arm.com>

Regards,

-- 
Julien Grall

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Re: [PATCH V3] arm/gic-v3: Fix ACPI probe fail on GICv4 hardware

[Stefano Stabellini]

On Tue, 31 May 2016, Julien Grall wrote:
> Hi Shanker,
> 
> On 27/05/16 19:32, Shanker Donthineni wrote:
> > The current driver ACPI probe fails on hardware which has GICv4
> > version, even though it is fully compatible to GICv3. This patch
> > fixed the issue by registering the same probe function for GICv4
> > hardware.
> > 
> > Signed-off-by: Shanker Donthineni <shankerd@codeaurora.org>
> 
> Acked-by: Julien Grall <julien.grall@arm.com>

Queued in my next-4.8 branch

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