1. When VRAM pressue and trigger huge evictions there is performance drop,
this patch fix it.
2. Also reserve priority for KFD using
Change-Id: Idcd2db65be69d62bcbd7dfaa3bcf9bc964d6d122
Signed-off-by: Roger.He <Hongbo.He at amd.com>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_object.c | 4 +---
include/drm/ttm/ttm_bo_driver.h | 2 +-
2 files changed, 2 insertions(+), 4 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c
index 434c931..d6b2de9 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c
@@ -405,10 +405,8 @@ int amdgpu_bo_create_restricted(struct amdgpu_device *adev,
if (unlikely(r != 0))
return r;
- bo->tbo.priority = ilog2(bo->tbo.num_pages);
if (kernel)
- bo->tbo.priority *= 2;
- bo->tbo.priority = min(bo->tbo.priority, TTM_MAX_BO_PRIORITY - 1);
+ bo->tbo.priority = 1;
if (flags & AMDGPU_GEM_CREATE_VRAM_CLEARED &&
bo->tbo.mem.placement & TTM_PL_FLAG_VRAM) {
diff --git a/include/drm/ttm/ttm_bo_driver.h b/include/drm/ttm/ttm_bo_driver.h
index c3d74be..7777d14 100644
--- a/include/drm/ttm/ttm_bo_driver.h
+++ b/include/drm/ttm/ttm_bo_driver.h
@@ -42,7 +42,7 @@
#include <linux/spinlock.h>
#include <linux/reservation.h>
-#define TTM_MAX_BO_PRIORITY 16U
+#define TTM_MAX_BO_PRIORITY 4U
struct ttm_backend_func {
/**
--
2.7.4
