________________________________
From: amd-gfx <amd-gfx-bounces@xxxxxxxxxxxxxxxxxxxxx> on behalf of Andrey Grodzovsky <andrey.grodzovsky at amd.com>
Sent: Friday, December 15, 2017 2:09 PM
To: amd-gfx at lists.freedesktop.org
Cc: He, Roger; Daenzer, Michel; Koenig, Christian; Grodzovsky, Andrey
Subject: [PATCH] Revert "drm/amd/amdgpu: set gtt size according to system memory size only"
This reverts commit ba851eed895c76be0eb4260bdbeb7e26f9ccfaa2.
With that change piglit max size tests (running with -t max.*size) are causing
OOM and hard hang on my CZ with 1GB RAM.
Signed-off-by: Andrey Grodzovsky <andrey.grodzovsky at amd.com>
Acked-by: Alex Deucher <alexander.deucher at amd.com>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c | 8 +++++---
1 file changed, 5 insertions(+), 3 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
index c307a7d..814a9c1 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
@@ -1329,9 +1329,11 @@ int amdgpu_ttm_init(struct amdgpu_device *adev)
struct sysinfo si;
si_meminfo(&si);
- gtt_size = max(AMDGPU_DEFAULT_GTT_SIZE_MB << 20,
- (uint64_t)si.totalram * si.mem_unit * 3/4);
- } else
+ gtt_size = min(max((AMDGPU_DEFAULT_GTT_SIZE_MB << 20),
+ adev->mc.mc_vram_size),
+ ((uint64_t)si.totalram * si.mem_unit * 3/4));
+ }
+ else
gtt_size = (uint64_t)amdgpu_gtt_size << 20;
r = ttm_bo_init_mm(&adev->mman.bdev, TTM_PL_TT, gtt_size >> PAGE_SHIFT);
if (r) {
--
2.7.4
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