From: Christian König christian.koenig@amd.com
Only necessary if we don't use the same engine for buffer moves and table updates.
Signed-off-by: Christian König christian.koenig@amd.com --- drivers/gpu/drm/radeon/radeon_vm.c | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/radeon/radeon_vm.c b/drivers/gpu/drm/radeon/radeon_vm.c index 1491be9..c11b71d 100644 --- a/drivers/gpu/drm/radeon/radeon_vm.c +++ b/drivers/gpu/drm/radeon/radeon_vm.c @@ -585,7 +585,8 @@ int radeon_vm_update_page_directory(struct radeon_device *rdev, { static const uint32_t incr = RADEON_VM_PTE_COUNT * 8;
- uint64_t pd_addr = radeon_bo_gpu_offset(vm->page_directory); + struct radeon_bo *pd = vm->page_directory; + uint64_t pd_addr = radeon_bo_gpu_offset(pd); uint64_t last_pde = ~0, last_pt = ~0; unsigned count = 0, pt_idx, ndw; struct radeon_ib ib; @@ -642,6 +643,7 @@ int radeon_vm_update_page_directory(struct radeon_device *rdev, incr, R600_PTE_VALID);
if (ib.length_dw != 0) { + radeon_semaphore_sync_to(ib.semaphore, pd->tbo.sync_obj); radeon_semaphore_sync_to(ib.semaphore, vm->last_id_use); r = radeon_ib_schedule(rdev, &ib, NULL); if (r) { @@ -689,15 +691,18 @@ static void radeon_vm_update_ptes(struct radeon_device *rdev, /* walk over the address space and update the page tables */ for (addr = start; addr < end; ) { uint64_t pt_idx = addr >> RADEON_VM_BLOCK_SIZE; + struct radeon_bo *pt = vm->page_tables[pt_idx].bo; unsigned nptes; uint64_t pte;
+ radeon_semaphore_sync_to(ib->semaphore, pt->tbo.sync_obj); + if ((addr & ~mask) == (end & ~mask)) nptes = end - addr; else nptes = RADEON_VM_PTE_COUNT - (addr & mask);
- pte = radeon_bo_gpu_offset(vm->page_tables[pt_idx].bo); + pte = radeon_bo_gpu_offset(pt); pte += (addr & mask) * 8;
if ((last_pte + 8 * count) != pte) {