drm/amdgpu: stop removing BOs from the LRU v3

This avoids OOM situations when we have lots of threads
submitting at the same time.

v3: apply this to the whole driver, not just CS

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Chunming Zhou <david1.zhou@amd.com>
Tested-by: Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
index 20f2955..3e2da24 100644 (file)
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
@@ -648,7 +648,7 @@ static int amdgpu_cs_parser_bos(struct amdgpu_cs_parser *p,
        }
 
        r = ttm_eu_reserve_buffers(&p->ticket, &p->validated, true,
-                                  &duplicates, true);
+                                  &duplicates, false);
        if (unlikely(r != 0)) {
                if (r != -ERESTARTSYS)
                        DRM_ERROR("ttm_eu_reserve_buffers failed.\n");

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_csa.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_csa.c
index 06f83ca..f660628 100644 (file)
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_csa.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_csa.c
@@ -79,7 +79,7 @@ int amdgpu_map_static_csa(struct amdgpu_device *adev, struct amdgpu_vm *vm,
        list_add(&csa_tv.head, &list);
        amdgpu_vm_get_pd_bo(vm, &list, &pd);
 
-       r = ttm_eu_reserve_buffers(&ticket, &list, true, NULL, true);
+       r = ttm_eu_reserve_buffers(&ticket, &list, true, NULL, false);
        if (r) {
                DRM_ERROR("failed to reserve CSA,PD BOs: err=%d\n", r);
                return r;

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c
index d513a5a..ed25a4e 100644 (file)
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c
@@ -171,7 +171,7 @@ void amdgpu_gem_object_close(struct drm_gem_object *obj,
 
        amdgpu_vm_get_pd_bo(vm, &list, &vm_pd);
 
-       r = ttm_eu_reserve_buffers(&ticket, &list, false, &duplicates, true);
+       r = ttm_eu_reserve_buffers(&ticket, &list, false, &duplicates, false);
        if (r) {
                dev_err(adev->dev, "leaking bo va because "
                        "we fail to reserve bo (%d)\n", r);
@@ -608,7 +608,7 @@ int amdgpu_gem_va_ioctl(struct drm_device *dev, void *data,
 
        amdgpu_vm_get_pd_bo(&fpriv->vm, &list, &vm_pd);
 
-       r = ttm_eu_reserve_buffers(&ticket, &list, true, &duplicates, true);
+       r = ttm_eu_reserve_buffers(&ticket, &list, true, &duplicates, false);
        if (r)
                goto error_unref;
 

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.h
index c430e82..d60593c 100644 (file)
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.h
@@ -155,7 +155,7 @@ static inline int amdgpu_bo_reserve(struct amdgpu_bo *bo, bool no_intr)
        struct amdgpu_device *adev = amdgpu_ttm_adev(bo->tbo.bdev);
        int r;
 
-       r = ttm_bo_reserve(&bo->tbo, !no_intr, false, NULL);
+       r = __ttm_bo_reserve(&bo->tbo, !no_intr, false, NULL);
        if (unlikely(r != 0)) {
                if (r != -ERESTARTSYS)
                        dev_err(adev->dev, "%p reserve failed\n", bo);