drm/radeon: allow MIP_ADDRESS=0 for MSAA textures on Evergreen

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MIP_ADDRESS should point to the resolved FMASK for an MSAA texture.
Setting MIP_ADDRESS to 0 means the FMASK pointer is invalid (the GPU
won't read the memory then).

The userspace has to set MIP_ADDRESS to 0 and *not* emit any relocation
for it.

Signed-off-by: Marek Olšák <maraeo@gmail.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org

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Marek Olšák 2012-09-25 03:34:01 +02:00 • committed by Alex Deucher

parent 46fc8781bf

commit 61051afd35

2 changed files with 54 additions and 8 deletions

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59

drivers/gpu/drm/radeon/evergreen_cs.c

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3

drivers/gpu/drm/radeon/radeon_drv.c

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