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From 32424d7bb58667c5d3bb52bb910f02710e84610a Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Christian=20K=C3=B6nig?= <christian.koenig@amd.com>
Date: Fri, 14 Sep 2018 20:44:17 +0200
Subject: [PATCH 5304/5725] drm/amdgpu: stop crashing on GDS/GWS/OA eviction
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
Simply ignore any copying here.
Change-Id: I8c10da1b6199f4aa60fb8c52473eb2adb3286116
Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c | 18 ++++++++++++++++++
1 file changed, 18 insertions(+)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
index 614a5cf..212ce92 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
@@ -273,6 +273,13 @@ static void amdgpu_evict_flags(struct ttm_buffer_object *bo,
abo = ttm_to_amdgpu_bo(bo);
switch (bo->mem.mem_type) {
+ case AMDGPU_PL_GDS:
+ case AMDGPU_PL_GWS:
+ case AMDGPU_PL_OA:
+ placement->num_placement = 0;
+ placement->num_busy_placement = 0;
+ return;
+
case TTM_PL_VRAM:
case AMDGPU_PL_DGMA:
if (!adev->mman.buffer_funcs_enabled) {
@@ -302,6 +309,7 @@ static void amdgpu_evict_flags(struct ttm_buffer_object *bo,
case AMDGPU_PL_DGMA_IMPORT:
default:
amdgpu_bo_placement_from_domain(abo, AMDGPU_GEM_DOMAIN_CPU);
+ break;
}
*placement = abo->placement;
}
@@ -699,6 +707,16 @@ static int amdgpu_bo_move(struct ttm_buffer_object *bo, bool evict,
amdgpu_move_null(bo, new_mem);
return 0;
}
+ if (old_mem->mem_type == AMDGPU_PL_GDS ||
+ old_mem->mem_type == AMDGPU_PL_GWS ||
+ old_mem->mem_type == AMDGPU_PL_OA ||
+ new_mem->mem_type == AMDGPU_PL_GDS ||
+ new_mem->mem_type == AMDGPU_PL_GWS ||
+ new_mem->mem_type == AMDGPU_PL_OA) {
+ /* Nothing to save here */
+ amdgpu_move_null(bo, new_mem);
+ return 0;
+ }
if (!adev->mman.buffer_funcs_enabled)
goto memcpy;
--
2.7.4
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