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drm/amdgpu: add VRAM manager v2

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Split VRAM allocations into 4MB blocks.

v2: fix typo in comment, some suggested cleanups
v3: document how to disable the feature, fix rebase issue

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Edward O'Callaghan <funfunctor@folklore1984.net>
Tested-by: Mike Lothian <mike@fireburn.co.uk>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Christian König
2016-08-24 15:51:49 +02:00
committed by Alex Deucher
parent 8892f153c8
commit 6a7f76e70f
7 changed files with 237 additions and 2 deletions
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drivers/gpu/drm/amd/amdgpu/amdgpu.h
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@@ -97,6 +97,7 @@ extern char *amdgpu_disable_cu;
extern int amdgpu_sclk_deep_sleep_en;
extern char *amdgpu_virtual_display;
extern unsigned amdgpu_pp_feature_mask;
extern int amdgpu_vram_page_split;
#define AMDGPU_WAIT_IDLE_TIMEOUT_IN_MS 3000
#define AMDGPU_MAX_USEC_TIMEOUT 100000 /* 100 ms */