drm/amdgpu: cleanup SA inti and fini(v2)

should use bo_create_kernel instead of split to two
function that create and pin the SA bo

issue:
before this patch, there are DMAR read error in host
side when running SRIOV test, the DMAR address dropped
in the range of SA bo.

fix:
after this cleanups of SA init and fini, above DMAR
eror gone.

v2:
keep sa_bo's fini instead of suspend, to keep
reporting error

Signed-off-by: Monk Liu <Monk.Liu@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ib.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ib.c
index d7e3982..311589e 100644 (file)
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ib.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ib.c
@@ -279,11 +279,6 @@ int amdgpu_ib_pool_init(struct amdgpu_device *adev)
                return r;
        }
 
-       r = amdgpu_sa_bo_manager_start(adev, &adev->ring_tmp_bo);
-       if (r) {
-               return r;
-       }
-
        adev->ib_pool_ready = true;
        if (amdgpu_debugfs_sa_init(adev)) {
                dev_err(adev->dev, "failed to register debugfs file for SA\n");
@@ -302,7 +297,6 @@ int amdgpu_ib_pool_init(struct amdgpu_device *adev)
 void amdgpu_ib_pool_fini(struct amdgpu_device *adev)
 {
        if (adev->ib_pool_ready) {
-               amdgpu_sa_bo_manager_suspend(adev, &adev->ring_tmp_bo);
                amdgpu_sa_bo_manager_fini(adev, &adev->ring_tmp_bo);
                adev->ib_pool_ready = false;
        }

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.h
index c2b02f5..1cef944 100644 (file)
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.h
@@ -281,8 +281,6 @@ void amdgpu_sa_bo_manager_fini(struct amdgpu_device *adev,
                                      struct amdgpu_sa_manager *sa_manager);
 int amdgpu_sa_bo_manager_start(struct amdgpu_device *adev,
                                      struct amdgpu_sa_manager *sa_manager);
-int amdgpu_sa_bo_manager_suspend(struct amdgpu_device *adev,
-                                       struct amdgpu_sa_manager *sa_manager);
 int amdgpu_sa_bo_new(struct amdgpu_sa_manager *sa_manager,
                     struct amdgpu_sa_bo **sa_bo,
                     unsigned size, unsigned align);

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_sa.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_sa.c
index 5ca75a4..fb1667b 100644 (file)
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_sa.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_sa.c
@@ -63,21 +63,27 @@ int amdgpu_sa_bo_manager_init(struct amdgpu_device *adev,
        for (i = 0; i < AMDGPU_SA_NUM_FENCE_LISTS; ++i)
                INIT_LIST_HEAD(&sa_manager->flist[i]);
 
-       r = amdgpu_bo_create(adev, size, align, true, domain,
-                            0, NULL, NULL, &sa_manager->bo);
+       r = amdgpu_bo_create_kernel(adev, size, align, domain, &sa_manager->bo,
+                               &sa_manager->gpu_addr, &sa_manager->cpu_ptr);
        if (r) {
                dev_err(adev->dev, "(%d) failed to allocate bo for manager\n", r);
                return r;
        }
 
+       memset(sa_manager->cpu_ptr, 0, sa_manager->size);
        return r;
 }
 
 void amdgpu_sa_bo_manager_fini(struct amdgpu_device *adev,
-                              struct amdgpu_sa_manager *sa_manager)
+                              struct amdgpu_sa_manager *sa_manager)
 {
        struct amdgpu_sa_bo *sa_bo, *tmp;
 
+       if (sa_manager->bo == NULL) {
+               dev_err(adev->dev, "no bo for sa manager\n");
+               return;
+       }
+
        if (!list_empty(&sa_manager->olist)) {
                sa_manager->hole = &sa_manager->olist,
                amdgpu_sa_bo_try_free(sa_manager);
@@ -88,55 +94,9 @@ void amdgpu_sa_bo_manager_fini(struct amdgpu_device *adev,
        list_for_each_entry_safe(sa_bo, tmp, &sa_manager->olist, olist) {
                amdgpu_sa_bo_remove_locked(sa_bo);
        }
-       amdgpu_bo_unref(&sa_manager->bo);
-       sa_manager->size = 0;
-}
-
-int amdgpu_sa_bo_manager_start(struct amdgpu_device *adev,
-                              struct amdgpu_sa_manager *sa_manager)
-{
-       int r;
-
-       if (sa_manager->bo == NULL) {
-               dev_err(adev->dev, "no bo for sa manager\n");
-               return -EINVAL;
-       }
 
-       /* map the buffer */
-       r = amdgpu_bo_reserve(sa_manager->bo, false);
-       if (r) {
-               dev_err(adev->dev, "(%d) failed to reserve manager bo\n", r);
-               return r;
-       }
-       r = amdgpu_bo_pin(sa_manager->bo, sa_manager->domain, &sa_manager->gpu_addr);
-       if (r) {
-               amdgpu_bo_unreserve(sa_manager->bo);
-               dev_err(adev->dev, "(%d) failed to pin manager bo\n", r);
-               return r;
-       }
-       r = amdgpu_bo_kmap(sa_manager->bo, &sa_manager->cpu_ptr);
-       memset(sa_manager->cpu_ptr, 0, sa_manager->size);
-       amdgpu_bo_unreserve(sa_manager->bo);
-       return r;
-}
-
-int amdgpu_sa_bo_manager_suspend(struct amdgpu_device *adev,
-                                struct amdgpu_sa_manager *sa_manager)
-{
-       int r;
-
-       if (sa_manager->bo == NULL) {
-               dev_err(adev->dev, "no bo for sa manager\n");
-               return -EINVAL;
-       }
-
-       r = amdgpu_bo_reserve(sa_manager->bo, true);
-       if (!r) {
-               amdgpu_bo_kunmap(sa_manager->bo);
-               amdgpu_bo_unpin(sa_manager->bo);
-               amdgpu_bo_unreserve(sa_manager->bo);
-       }
-       return r;
+       amdgpu_bo_free_kernel(&sa_manager->bo, &sa_manager->gpu_addr, &sa_manager->cpu_ptr);
+       sa_manager->size = 0;
 }
 
 static void amdgpu_sa_bo_remove_locked(struct amdgpu_sa_bo *sa_bo)