drm/radeon: refactor set_page chipset interface v5
Cleanup the interface in preparation for hierarchical page tables.
v2: add incr parameter to set_page for simple scattered PTs uptates
added PDE-specific flags to r600_flags and radeon_drm.h
removed superfluous value masking with 0xffffffff
v3: removed superfluous bo_va->valid checking
changed R600_PTE_VALID to R600_ENTRY_VALID to handle PDE too
v4 (ck): fix indention style, rework and fix typos in commit message,
add documentation for incr parameter, also use incr
parameter for system pages
v5 (agd5f): use upper_32_bits() and minor white space fixes
Signed-off-by: Christian König <deathsimple@vodafone.de>
Signed-off-by: Dmitry Cherkassov <Dmitrii.Cherkasov@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
diff --git a/drivers/gpu/drm/radeon/radeon_gart.c b/drivers/gpu/drm/radeon/radeon_gart.c
index 2f28ff3..bb9fc59 100644
--- a/drivers/gpu/drm/radeon/radeon_gart.c
+++ b/drivers/gpu/drm/radeon/radeon_gart.c
@@ -822,42 +822,26 @@
}
/**
- * radeon_vm_get_addr - get the physical address of the page
+ * radeon_vm_map_gart - get the physical address of a gart page
*
* @rdev: radeon_device pointer
- * @mem: ttm mem
- * @pfn: pfn
+ * @addr: the unmapped addr
*
* Look up the physical address of the page that the pte resolves
* to (cayman+).
* Returns the physical address of the page.
*/
-u64 radeon_vm_get_addr(struct radeon_device *rdev,
- struct ttm_mem_reg *mem,
- unsigned pfn)
+uint64_t radeon_vm_map_gart(struct radeon_device *rdev, uint64_t addr)
{
- u64 addr = 0;
+ uint64_t result;
- switch (mem->mem_type) {
- case TTM_PL_VRAM:
- addr = (mem->start << PAGE_SHIFT);
- addr += pfn * RADEON_GPU_PAGE_SIZE;
- addr += rdev->vm_manager.vram_base_offset;
- break;
- case TTM_PL_TT:
- /* offset inside page table */
- addr = mem->start << PAGE_SHIFT;
- addr += pfn * RADEON_GPU_PAGE_SIZE;
- addr = addr >> PAGE_SHIFT;
- /* page table offset */
- addr = rdev->gart.pages_addr[addr];
- /* in case cpu page size != gpu page size*/
- addr += (pfn * RADEON_GPU_PAGE_SIZE) & (~PAGE_MASK);
- break;
- default:
- break;
- }
- return addr;
+ /* page table offset */
+ result = rdev->gart.pages_addr[addr >> PAGE_SHIFT];
+
+ /* in case cpu page size != gpu page size*/
+ result |= addr & (~PAGE_MASK);
+
+ return result;
}
/**
@@ -883,7 +867,7 @@
struct radeon_semaphore *sem = NULL;
struct radeon_bo_va *bo_va;
unsigned ngpu_pages, ndw;
- uint64_t pfn;
+ uint64_t pfn, addr;
int r;
/* nothing to do if vm isn't bound */
@@ -908,21 +892,22 @@
ngpu_pages = radeon_bo_ngpu_pages(bo);
bo_va->flags &= ~RADEON_VM_PAGE_VALID;
bo_va->flags &= ~RADEON_VM_PAGE_SYSTEM;
+ pfn = bo_va->soffset / RADEON_GPU_PAGE_SIZE;
if (mem) {
+ addr = mem->start << PAGE_SHIFT;
if (mem->mem_type != TTM_PL_SYSTEM) {
bo_va->flags |= RADEON_VM_PAGE_VALID;
bo_va->valid = true;
}
if (mem->mem_type == TTM_PL_TT) {
bo_va->flags |= RADEON_VM_PAGE_SYSTEM;
- }
- if (!bo_va->valid) {
- mem = NULL;
+ } else {
+ addr += rdev->vm_manager.vram_base_offset;
}
} else {
+ addr = 0;
bo_va->valid = false;
}
- pfn = bo_va->soffset / RADEON_GPU_PAGE_SIZE;
if (vm->fence && radeon_fence_signaled(vm->fence)) {
radeon_fence_unref(&vm->fence);
@@ -950,7 +935,8 @@
radeon_fence_note_sync(vm->fence, ridx);
}
- radeon_asic_vm_set_page(rdev, vm, pfn, mem, ngpu_pages, bo_va->flags);
+ radeon_asic_vm_set_page(rdev, vm->pt_gpu_addr + pfn * 8, addr,
+ ngpu_pages, RADEON_GPU_PAGE_SIZE, bo_va->flags);
radeon_fence_unref(&vm->fence);
r = radeon_fence_emit(rdev, &vm->fence, ridx);