Commit cc6f3536 authored by Christian König's avatar Christian König Committed by Alex Deucher

drm/radeon: update IB size estimation for VM

That should allow us to allocate bigger BOs.
Signed-off-by: default avatarChristian König <christian.koenig@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent 03f62abd
......@@ -410,8 +410,7 @@ static int radeon_vm_clear_bo(struct radeon_device *rdev,
addr = radeon_bo_gpu_offset(bo);
entries = radeon_bo_size(bo) / 8;
r = radeon_ib_get(rdev, R600_RING_TYPE_DMA_INDEX, &ib,
NULL, entries * 2 + 64);
r = radeon_ib_get(rdev, R600_RING_TYPE_DMA_INDEX, &ib, NULL, 256);
if (r)
goto error;
......@@ -419,6 +418,7 @@ static int radeon_vm_clear_bo(struct radeon_device *rdev,
radeon_vm_set_pages(rdev, &ib, addr, 0, entries, 0, 0);
radeon_asic_vm_pad_ib(rdev, &ib);
WARN_ON(ib.length_dw > 64);
r = radeon_ib_schedule(rdev, &ib, NULL);
if (r)
......@@ -642,7 +642,7 @@ int radeon_vm_update_page_directory(struct radeon_device *rdev,
ndw = 64;
/* assume the worst case */
ndw += vm->max_pde_used * 16;
ndw += vm->max_pde_used * 6;
/* update too big for an IB */
if (ndw > 0xfffff)
......@@ -692,6 +692,7 @@ int radeon_vm_update_page_directory(struct radeon_device *rdev,
radeon_asic_vm_pad_ib(rdev, &ib);
radeon_semaphore_sync_to(ib.semaphore, pd->tbo.sync_obj);
radeon_semaphore_sync_to(ib.semaphore, vm->last_id_use);
WARN_ON(ib.length_dw > ndw);
r = radeon_ib_schedule(rdev, &ib, NULL);
if (r) {
radeon_ib_free(rdev, &ib);
......@@ -871,8 +872,9 @@ int radeon_vm_bo_update(struct radeon_device *rdev,
{
struct radeon_vm *vm = bo_va->vm;
struct radeon_ib ib;
unsigned nptes, ndw;
unsigned nptes, ncmds, ndw;
uint64_t addr;
uint32_t flags;
int r;
if (!bo_va->it.start) {
......@@ -911,20 +913,33 @@ int radeon_vm_bo_update(struct radeon_device *rdev,
nptes = bo_va->it.last - bo_va->it.start + 1;
/* reserve space for one command every (1 << BLOCK_SIZE) entries
or 2k dwords (whatever is smaller) */
ncmds = (nptes >> min(radeon_vm_block_size, 11)) + 1;
/* padding, etc. */
ndw = 64;
if (radeon_vm_block_size > 11)
/* reserve space for one header for every 2k dwords */
ndw += (nptes >> 11) * 4;
else
/* reserve space for one header for
every (1 << BLOCK_SIZE) entries */
ndw += (nptes >> radeon_vm_block_size) * 4;
flags = radeon_vm_page_flags(bo_va->flags);
if ((flags & R600_PTE_GART_MASK) == R600_PTE_GART_MASK) {
/* only copy commands needed */
ndw += ncmds * 7;
/* reserve space for pte addresses */
} else if (flags & R600_PTE_SYSTEM) {
/* header for write data commands */
ndw += ncmds * 4;
/* body of write data command */
ndw += nptes * 2;
} else {
/* set page commands needed */
ndw += ncmds * 10;
/* two extra commands for begin/end of fragment */
ndw += 2 * 10;
}
/* update too big for an IB */
if (ndw > 0xfffff)
return -ENOMEM;
......@@ -939,6 +954,8 @@ int radeon_vm_bo_update(struct radeon_device *rdev,
radeon_vm_page_flags(bo_va->flags));
radeon_asic_vm_pad_ib(rdev, &ib);
WARN_ON(ib.length_dw > ndw);
radeon_semaphore_sync_to(ib.semaphore, vm->fence);
r = radeon_ib_schedule(rdev, &ib, NULL);
if (r) {
......
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