linux/drivers/gpu/drm/amd
Bas Nieuwenhuizen 37ac3dc00d drm/amdgpu: Use device specific BO size & stride check.
The builtin size check isn't really the right thing for AMD
modifiers due to a couple of reasons:

1) In the format structs we don't do set any of the tilesize / blocks
etc. to avoid having format arrays per modifier/GPU
2) The pitch on the main plane is pixel_pitch * bytes_per_pixel even
for tiled ...
3) The pitch for the DCC planes is really the pixel pitch of the main
surface that would be covered by it ...

Note that we only handle GFX9+ case but we do this after converting
the implicit modifier to an explicit modifier, so on GFX9+ all
framebuffers should be checked here.

There is a TODO about DCC alignment, but it isn't worse than before
and I'd need to dig a bunch into the specifics. Getting this out in
a reasonable timeframe to make sure it gets the appropriate testing
seemed more important.

Finally as I've found that debugging addfb2 failures is a pita I was
generous adding explicit error messages to every failure case.

Fixes: f258907fdd ("drm/amdgpu: Verify bo size can fit framebuffer size on init.")
Tested-by: Simon Ser <contact@emersion.fr>
Signed-off-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2021-05-10 18:06:45 -04:00
..
acp
amdgpu drm/amdgpu: Use device specific BO size & stride check. 2021-05-10 18:06:45 -04:00
amdkfd drm/amdkfd: Update L1 and add L2/3 cache information 2021-05-10 18:06:45 -04:00
display drm/amd/display: 3.2.134 2021-05-10 18:06:45 -04:00
include drm/amd/pm: Add interface to get FW private buffer 2021-05-10 18:06:45 -04:00
pm drm/amd/pm: initialize variable 2021-05-10 18:06:45 -04:00