[PATCH 094/459] drm/amdgpu: program for resuming preempted ib

[Alex Deucher]

From: Jack Xiao <Jack.Xiao at amd.com>

For new submission ib, CE/DE metadata should be programmed to 0;
for partially execution ib, CE/DE metadata should be restored.

Acked-by: Alex Deucher <alexander.deucher at amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang at amd.com>
Signed-off-by: Jack Xiao <Jack.Xiao at amd.com>
Signed-off-by: Alex Deucher <alexander.deucher at amd.com>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_csa.c  | 1 +
 drivers/gpu/drm/amd/amdgpu/amdgpu_virt.h | 1 +
 2 files changed, 2 insertions(+)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_csa.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_csa.c
index f660628e6af9..35a8d3c96fc9 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_csa.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_csa.c
@@ -47,6 +47,7 @@ int amdgpu_allocate_static_csa(struct amdgpu_device *adev, struct amdgpu_bo **bo
 		return -ENOMEM;
 
 	memset(ptr, 0, size);
+	adev->virt.csa_cpu_addr = ptr;
 	return 0;
 }
 
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_virt.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_virt.h
index dca25deee75c..f5107731e9c4 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_virt.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_virt.h
@@ -253,6 +253,7 @@ typedef struct amdgim_vf2pf_info_v2 amdgim_vf2pf_info ;
 struct amdgpu_virt {
 	uint32_t			caps;
 	struct amdgpu_bo		*csa_obj;
+	void				*csa_cpu_addr;
 	bool chained_ib_support;
 	uint32_t			reg_val_offs;
 	struct amdgpu_irq_src		ack_irq;
-- 
2.20.1