*To:* Alex Deucher ; Lakha, Bhawanpreet
*Cc:* Deucher, Alexander ; amd-gfx list
; Zhang, Hawking
*Subject:* Re: [PATCH] drm/amd/display: Guard calls to hdcp_ta and dtm_ta
On 2020-03-31 1:37 p.m., Alex Deucher wrote:
On Mon, Mar 30, 2020 at 6:36 PM Bhawanpreet Lakha
wrote:
[Why]
The buffer used wh
Cc: Deucher, Alexander ; amd-gfx list
; Zhang, Hawking
Subject: Re: [PATCH] drm/amd/display: Guard calls to hdcp_ta and dtm_ta
On 2020-03-31 1:37 p.m., Alex Deucher wrote:
> On Mon, Mar 30, 2020 at 6:36 PM Bhawanpreet Lakha
> wrote:
>>
>> [Why]
>> The buffer used when c
On 2020-03-31 1:37 p.m., Alex Deucher wrote:
On Mon, Mar 30, 2020 at 6:36 PM Bhawanpreet Lakha
wrote:
[Why]
The buffer used when calling psp is a shared buffer. If we have multiple calls
at the same time we can overwrite the buffer.
[How]
Add mutex to guard the shared buffer.
Signed-off-by:
On Mon, Mar 30, 2020 at 6:36 PM Bhawanpreet Lakha
wrote:
>
> [Why]
> The buffer used when calling psp is a shared buffer. If we have multiple calls
> at the same time we can overwrite the buffer.
>
> [How]
> Add mutex to guard the shared buffer.
>
> Signed-off-by: Bhawanpreet Lakha
Acked-by: Ale
[Why]
The buffer used when calling psp is a shared buffer. If we have multiple calls
at the same time we can overwrite the buffer.
[How]
Add mutex to guard the shared buffer.
Signed-off-by: Bhawanpreet Lakha
---
drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c | 2 +
drivers/gpu/drm/amd/amdgpu/a
