[PATCH 01/42] drm/amdgpu/job: use GFP_ATOMIC while in gpu reset

[Alex Deucher <alexander.deucher@amd.com>]

If we need to allocate a job during GPU reset, use
GFP_ATOMIC rather than GFP_KERNEL.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_ib.c     | 2 +-
 drivers/gpu/drm/amd/amdgpu/amdgpu_job.c    | 9 ++++++---
 drivers/gpu/drm/amd/amdgpu/amdgpu_object.h | 3 ++-
 drivers/gpu/drm/amd/amdgpu/amdgpu_sa.c     | 6 ++++--
 4 files changed, 13 insertions(+), 7 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ib.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ib.c
index 72ec455fa932c..136e50de712a0 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ib.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ib.c
@@ -68,7 +68,7 @@ int amdgpu_ib_get(struct amdgpu_device *adev, struct amdgpu_vm *vm,
 	int r;
 
 	if (size) {
-		r = amdgpu_sa_bo_new(&adev->ib_pools[pool_type],
+		r = amdgpu_sa_bo_new(adev, &adev->ib_pools[pool_type],
 				     &ib->sa_bo, size);
 		if (r) {
 			dev_err(adev->dev, "failed to get a new IB (%d)\n", r);
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_job.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_job.c
index 7f5d01164897f..35c19215a2e0a 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_job.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_job.c
@@ -192,18 +192,21 @@ int amdgpu_job_alloc(struct amdgpu_device *adev, struct amdgpu_vm *vm,
 	if (num_ibs == 0)
 		return -EINVAL;
 
-	*job = kzalloc(struct_size(*job, ibs, num_ibs), GFP_KERNEL);
+	*job = kzalloc(struct_size(*job, ibs, num_ibs),
+		       amdgpu_in_reset(adev) ? GFP_ATOMIC : GFP_KERNEL);
 	if (!*job)
 		return -ENOMEM;
 
-	af = kzalloc(sizeof(struct amdgpu_fence), GFP_KERNEL);
+	af = kzalloc(sizeof(struct amdgpu_fence),
+		     amdgpu_in_reset(adev) ? GFP_ATOMIC : GFP_KERNEL);
 	if (!af) {
 		r = -ENOMEM;
 		goto err_job;
 	}
 	(*job)->hw_fence = af;
 
-	af = kzalloc(sizeof(struct amdgpu_fence), GFP_KERNEL);
+	af = kzalloc(sizeof(struct amdgpu_fence),
+		     amdgpu_in_reset(adev) ? GFP_ATOMIC : GFP_KERNEL);
 	if (!af) {
 		r = -ENOMEM;
 		goto err_fence;
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.h
index 912c9afaf9e11..7ee0cc46b4608 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.h
@@ -339,7 +339,8 @@ 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_new(struct amdgpu_sa_manager *sa_manager,
+int amdgpu_sa_bo_new(struct amdgpu_device *adev,
+		     struct amdgpu_sa_manager *sa_manager,
 		     struct drm_suballoc **sa_bo,
 		     unsigned int size);
 void amdgpu_sa_bo_free(struct drm_suballoc **sa_bo,
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_sa.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_sa.c
index 39070b2a4c04f..fc13969f8ef49 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_sa.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_sa.c
@@ -76,12 +76,14 @@ void amdgpu_sa_bo_manager_fini(struct amdgpu_device *adev,
 	amdgpu_bo_free_kernel(&sa_manager->bo, &sa_manager->gpu_addr, &sa_manager->cpu_ptr);
 }
 
-int amdgpu_sa_bo_new(struct amdgpu_sa_manager *sa_manager,
+int amdgpu_sa_bo_new(struct amdgpu_device *adev,
+		     struct amdgpu_sa_manager *sa_manager,
 		     struct drm_suballoc **sa_bo,
 		     unsigned int size)
 {
 	struct drm_suballoc *sa = drm_suballoc_new(&sa_manager->base, size,
-						   GFP_KERNEL, false, 0);
+						   amdgpu_in_reset(adev) ? GFP_ATOMIC : GFP_KERNEL,
+						   false, 0);
 
 	if (IS_ERR(sa)) {
 		*sa_bo = NULL;
-- 
2.52.0