drm/amdgpu: cleanup vm_size handling

It's pointless to have the same value twice, just always use max_pfn.
Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c

@@ -2576,26 +2576,26 @@ void amdgpu_vm_set_fragment_size(struct amdgpu_device *adev,
  * @adev: amdgpu_device pointer
  * @vm_size: the default vm size if it's set auto
  */
-void amdgpu_vm_adjust_size(struct amdgpu_device *adev, uint64_t vm_size,
+void amdgpu_vm_adjust_size(struct amdgpu_device *adev, uint32_t vm_size,
 			   uint32_t fragment_size_default)
 {
 	/* adjust vm size firstly */
-	if (amdgpu_vm_size == -1)
-		adev->vm_manager.vm_size = vm_size;
-	else
-		adev->vm_manager.vm_size = amdgpu_vm_size;
+	if (amdgpu_vm_size != -1)
+		vm_size = amdgpu_vm_size;
+
+	adev->vm_manager.max_pfn = (uint64_t)vm_size << 18;
 
 	/* block size depends on vm size */
 	if (amdgpu_vm_block_size == -1)
 		adev->vm_manager.block_size =
-			amdgpu_vm_get_block_size(adev->vm_manager.vm_size);
+			amdgpu_vm_get_block_size(vm_size);
 	else
 		adev->vm_manager.block_size = amdgpu_vm_block_size;
 
 	amdgpu_vm_set_fragment_size(adev, fragment_size_default);
 
-	DRM_INFO("vm size is %llu GB, block size is %u-bit, fragment size is %u-bit\n",
-		adev->vm_manager.vm_size, adev->vm_manager.block_size,
+	DRM_INFO("vm size is %u GB, block size is %u-bit, fragment size is %u-bit\n",
+		 vm_size, adev->vm_manager.block_size,
 		 adev->vm_manager.fragment_size);
 }
 

drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h

@@ -221,7 +221,6 @@ struct amdgpu_vm_manager {
 
 	uint64_t				max_pfn;
 	uint32_t				num_level;
-	uint64_t				vm_size;
 	uint32_t				block_size;
 	uint32_t				fragment_size;
 	/* vram base address for page table entry  */
@@ -314,7 +313,7 @@ void amdgpu_vm_bo_rmv(struct amdgpu_device *adev,
 		      struct amdgpu_bo_va *bo_va);
 void amdgpu_vm_set_fragment_size(struct amdgpu_device *adev,
 				 uint32_t fragment_size_default);
-void amdgpu_vm_adjust_size(struct amdgpu_device *adev, uint64_t vm_size,
+void amdgpu_vm_adjust_size(struct amdgpu_device *adev, uint32_t vm_size,
 			   uint32_t fragment_size_default);
 int amdgpu_vm_ioctl(struct drm_device *dev, void *data, struct drm_file *filp);
 bool amdgpu_vm_need_pipeline_sync(struct amdgpu_ring *ring,

drivers/gpu/drm/amd/amdgpu/gmc_v6_0.c

@@ -838,7 +838,6 @@ static int gmc_v6_0_sw_init(void *handle)
 		return r;
 
 	amdgpu_vm_adjust_size(adev, 64, 9);
-	adev->vm_manager.max_pfn = adev->vm_manager.vm_size << 18;
 
 	adev->mc.mc_mask = 0xffffffffffULL;
 

drivers/gpu/drm/amd/amdgpu/gmc_v7_0.c

@@ -978,7 +978,6 @@ static int gmc_v7_0_sw_init(void *handle)
 	 * Max GPUVM size for cayman and SI is 40 bits.
 	 */
 	amdgpu_vm_adjust_size(adev, 64, 9);
-	adev->vm_manager.max_pfn = adev->vm_manager.vm_size << 18;
 
 	/* Set the internal MC address mask
 	 * This is the max address of the GPU's

drivers/gpu/drm/amd/amdgpu/gmc_v8_0.c

@@ -1075,7 +1075,6 @@ static int gmc_v8_0_sw_init(void *handle)
 	 * Max GPUVM size for cayman and SI is 40 bits.
 	 */
 	amdgpu_vm_adjust_size(adev, 64, 9);
-	adev->vm_manager.max_pfn = adev->vm_manager.vm_size << 18;
 
 	/* Set the internal MC address mask
 	 * This is the max address of the GPU's

drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c

@@ -564,7 +564,7 @@ static int gmc_v9_0_sw_init(void *handle)
 	case CHIP_RAVEN:
 		adev->mc.vram_type = AMDGPU_VRAM_TYPE_UNKNOWN;
 		if (adev->rev_id == 0x0 || adev->rev_id == 0x1) {
-			adev->vm_manager.vm_size = 1U << 18;
+			adev->vm_manager.max_pfn = 1ULL << 36;
 			adev->vm_manager.block_size = 9;
 			adev->vm_manager.num_level = 3;
 			amdgpu_vm_set_fragment_size(adev, 9);
@@ -582,7 +582,7 @@ static int gmc_v9_0_sw_init(void *handle)
 		 * vm size is 256TB (48bit), maximum size of Vega10,
 		 * block size 512 (9bit)
 		 */
-		adev->vm_manager.vm_size = 1U << 18;
+		adev->vm_manager.max_pfn = 1ULL << 36;
 		adev->vm_manager.block_size = 9;
 		adev->vm_manager.num_level = 3;
 		amdgpu_vm_set_fragment_size(adev, 9);
@@ -591,9 +591,8 @@ static int gmc_v9_0_sw_init(void *handle)
 		break;
 	}
 
-	DRM_INFO("vm size is %llu GB, block size is %u-bit,fragment size is %u-bit\n",
-			adev->vm_manager.vm_size,
-			adev->vm_manager.block_size,
+	DRM_INFO("vm size is %llu GB, block size is %u-bit, fragment size is %u-bit\n",
+		 adev->vm_manager.max_pfn >> 18, adev->vm_manager.block_size,
 		 adev->vm_manager.fragment_size);
 
 	/* This interrupt is VMC page fault.*/
@@ -605,8 +604,6 @@ static int gmc_v9_0_sw_init(void *handle)
 	if (r)
 		return r;
 
-	adev->vm_manager.max_pfn = adev->vm_manager.vm_size << 18;
-
 	/* Set the internal MC address mask
 	 * This is the max address of the GPU's
 	 * internal address space.