[PATCH] drm/ast: Fix start address computation
Jocelyn Falempe
jfalempe at redhat.com
Thu Feb 9 09:11:17 UTC 2023
On 07/02/2023 12:36, Jocelyn Falempe wrote:
> On 07/02/2023 12:17, Thomas Zimmermann wrote:
>> Hi
>>
>
> I was wondering if this start address is not an offset in the GPU
> memory, and in this case the primary plane offset should always be 0 ?
I think it's the case, so I will send a v2 shortly.
>
> Best regards,
>
>>
>> Best regards
>> Thomas
>>
>> [1]
>> https://elixir.bootlin.com/linux/v6.2-rc7/source/drivers/gpu/drm/ast/ast_mm.c#L96
>>
>>> unsigned long cursor_size = roundup(AST_HWC_SIZE +
>>> AST_HWC_SIGNATURE_SIZE, PAGE_SIZE);
>>> unsigned long size = ast->vram_fb_available - cursor_size;
>>> int ret;
>>
>
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