drm/radeon: Move looping over the PTEs into chip code

Makes it easier to move it into the rings.
Signed-off-by: Christian König <deathsimple@vodafone.de>
Reviewed-by: Jerome Glisse <jglisse@redhat.com>

drivers/gpu/drm/radeon/ni.c

@@ -1503,9 +1503,7 @@ void cayman_vm_fini(struct radeon_device *rdev)
 #define R600_PTE_READABLE  (1 << 5)
 #define R600_PTE_WRITEABLE (1 << 6)
 
-uint32_t cayman_vm_page_flags(struct radeon_device *rdev,
-			      struct radeon_vm *vm,
-			      uint32_t flags)
+uint32_t cayman_vm_page_flags(struct radeon_device *rdev, uint32_t flags)
 {
 	uint32_t r600_flags = 0;
 
@@ -1520,13 +1518,23 @@ uint32_t cayman_vm_page_flags(struct radeon_device *rdev,
 }
 
 void cayman_vm_set_page(struct radeon_device *rdev, struct radeon_vm *vm,
-			unsigned pfn, uint64_t addr, uint32_t flags)
+			unsigned pfn, struct ttm_mem_reg *mem,
+			unsigned npages, uint32_t flags)
 {
 	void __iomem *ptr = (void *)vm->pt;
+	uint64_t addr;
+	int i;
+
+	addr = flags = cayman_vm_page_flags(rdev, flags);
 
-	addr = addr & 0xFFFFFFFFFFFFF000ULL;
-	addr |= flags;
-	writeq(addr, ptr + (pfn * 8));
+        for (i = 0; i < npages; ++i, ++pfn) {
+                if (mem) {
+                        addr = radeon_vm_get_addr(rdev, mem, i);
+			addr = addr & 0xFFFFFFFFFFFFF000ULL;
+			addr |= flags;
+                }
+		writeq(addr, ptr + (pfn * 8));
+        }
 }
 
 void cayman_vm_flush(struct radeon_device *rdev, struct radeon_ib *ib)

drivers/gpu/drm/radeon/radeon.h

@@ -1135,11 +1135,9 @@ struct radeon_asic {
 	struct {
 		int (*init)(struct radeon_device *rdev);
 		void (*fini)(struct radeon_device *rdev);
-		uint32_t (*page_flags)(struct radeon_device *rdev,
-				       struct radeon_vm *vm,
-				       uint32_t flags);
 		void (*set_page)(struct radeon_device *rdev, struct radeon_vm *vm,
-				 unsigned pfn, uint64_t addr, uint32_t flags);
+				 unsigned pfn, struct ttm_mem_reg *mem,
+				 unsigned npages, uint32_t flags);
 	} vm;
 	/* ring specific callbacks */
 	struct {
@@ -1751,8 +1749,7 @@ void radeon_ring_write(struct radeon_ring *ring, uint32_t v);
 #define radeon_gart_set_page(rdev, i, p) (rdev)->asic->gart.set_page((rdev), (i), (p))
 #define radeon_asic_vm_init(rdev) (rdev)->asic->vm.init((rdev))
 #define radeon_asic_vm_fini(rdev) (rdev)->asic->vm.fini((rdev))
-#define radeon_asic_vm_page_flags(rdev, v, flags) (rdev)->asic->vm.page_flags((rdev), (v), (flags))
-#define radeon_asic_vm_set_page(rdev, v, pfn, addr, flags) (rdev)->asic->vm.set_page((rdev), (v), (pfn), (addr), (flags))
+#define radeon_asic_vm_set_page(rdev, v, pfn, mem, npages, flags) (rdev)->asic->vm.set_page((rdev), (v), (pfn), (mem), (npages), (flags))
 #define radeon_ring_start(rdev, r, cp) (rdev)->asic->ring[(r)].ring_start((rdev), (cp))
 #define radeon_ring_test(rdev, r, cp) (rdev)->asic->ring[(r)].ring_test((rdev), (cp))
 #define radeon_ib_test(rdev, r, cp) (rdev)->asic->ring[(r)].ib_test((rdev), (cp))
@@ -1837,6 +1834,9 @@ struct radeon_fence *radeon_vm_grab_id(struct radeon_device *rdev,
 void radeon_vm_fence(struct radeon_device *rdev,
 		     struct radeon_vm *vm,
 		     struct radeon_fence *fence);
+u64 radeon_vm_get_addr(struct radeon_device *rdev,
+                       struct ttm_mem_reg *mem,
+                       unsigned pfn);
 int radeon_vm_bo_update_pte(struct radeon_device *rdev,
 			    struct radeon_vm *vm,
 			    struct radeon_bo *bo,

drivers/gpu/drm/radeon/radeon_asic.c

@@ -1375,7 +1375,6 @@ static struct radeon_asic cayman_asic = {
 	.vm = {
 		.init = &cayman_vm_init,
 		.fini = &cayman_vm_fini,
-		.page_flags = &cayman_vm_page_flags,
 		.set_page = &cayman_vm_set_page,
 	},
 	.ring = {
@@ -1479,7 +1478,6 @@ static struct radeon_asic trinity_asic = {
 	.vm = {
 		.init = &cayman_vm_init,
 		.fini = &cayman_vm_fini,
-		.page_flags = &cayman_vm_page_flags,
 		.set_page = &cayman_vm_set_page,
 	},
 	.ring = {
@@ -1583,7 +1581,6 @@ static struct radeon_asic si_asic = {
 	.vm = {
 		.init = &si_vm_init,
 		.fini = &si_vm_fini,
-		.page_flags = &cayman_vm_page_flags,
 		.set_page = &cayman_vm_set_page,
 	},
 	.ring = {

drivers/gpu/drm/radeon/radeon_asic.h

@@ -442,11 +442,10 @@ int cayman_vm_init(struct radeon_device *rdev);
 void cayman_vm_fini(struct radeon_device *rdev);
 void cayman_vm_unbind(struct radeon_device *rdev, struct radeon_vm *vm);
 void cayman_vm_flush(struct radeon_device *rdev, struct radeon_ib *ib);
-uint32_t cayman_vm_page_flags(struct radeon_device *rdev,
-			      struct radeon_vm *vm,
-			      uint32_t flags);
+uint32_t cayman_vm_page_flags(struct radeon_device *rdev, uint32_t flags);
 void cayman_vm_set_page(struct radeon_device *rdev, struct radeon_vm *vm,
-			unsigned pfn, uint64_t addr, uint32_t flags);
+			unsigned pfn, struct ttm_mem_reg *mem, 
+			unsigned npages, uint32_t flags);
 int evergreen_ib_parse(struct radeon_device *rdev, struct radeon_ib *ib);
 
 /* DCE6 - SI */

drivers/gpu/drm/radeon/radeon_gart.c

@@ -450,7 +450,7 @@ int radeon_vm_manager_init(struct radeon_device *rdev)
 		r = radeon_asic_vm_init(rdev);
 		if (r)
 			return r;
-	
+
 		rdev->vm_manager.enabled = true;
 
 		r = radeon_sa_bo_manager_start(rdev, &rdev->vm_manager.sa_manager);
@@ -773,9 +773,9 @@ int radeon_vm_bo_add(struct radeon_device *rdev,
  * to (cayman+).
  * Returns the physical address of the page.
  */
-static u64 radeon_vm_get_addr(struct radeon_device *rdev,
-			      struct ttm_mem_reg *mem,
-			      unsigned pfn)
+u64 radeon_vm_get_addr(struct radeon_device *rdev,
+		       struct ttm_mem_reg *mem,
+		       unsigned pfn)
 {
 	u64 addr = 0;
 
@@ -819,9 +819,8 @@ int radeon_vm_bo_update_pte(struct radeon_device *rdev,
 			    struct ttm_mem_reg *mem)
 {
 	struct radeon_bo_va *bo_va;
-	unsigned ngpu_pages, i;
-	uint64_t addr = 0, pfn;
-	uint32_t flags;
+	unsigned ngpu_pages;
+	uint64_t pfn;
 
 	/* nothing to do if vm isn't bound */
 	if (vm->sa_bo == NULL)
@@ -848,14 +847,11 @@ int radeon_vm_bo_update_pte(struct radeon_device *rdev,
 			bo_va->flags |= RADEON_VM_PAGE_SYSTEM;
 		}
 	}
-	pfn = bo_va->soffset / RADEON_GPU_PAGE_SIZE;
-	flags = radeon_asic_vm_page_flags(rdev, bo_va->vm, bo_va->flags);
-	for (i = 0, addr = 0; i < ngpu_pages; i++) {
-		if (mem && bo_va->valid) {
-			addr = radeon_vm_get_addr(rdev, mem, i);
-		}
-		radeon_asic_vm_set_page(rdev, bo_va->vm, i + pfn, addr, flags);
+	if (!bo_va->valid) {
+		mem = NULL;
 	}
+	pfn = bo_va->soffset / RADEON_GPU_PAGE_SIZE;
+	radeon_asic_vm_set_page(rdev, bo_va->vm, pfn, mem, ngpu_pages, bo_va->flags);
 	radeon_fence_unref(&vm->last_flush);
 	return 0;
 }