提交 f3982ac1 编写于 作者: C Christian König 提交者: Alex Deucher

drm/radeon: optimize SI VM handling

Fill VM page tables from the GART page table if applicable.
Signed-off-by: NChristian König <christian.koenig@amd.com>
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>
上级 0e97703c
......@@ -79,7 +79,25 @@ void si_dma_vm_set_page(struct radeon_device *rdev,
trace_radeon_vm_set_page(pe, addr, count, incr, flags);
if (flags & R600_PTE_SYSTEM) {
if (flags == R600_PTE_GART) {
uint64_t src = rdev->gart.table_addr + (addr >> 12) * 8;
while (count) {
unsigned bytes = count * 8;
if (bytes > 0xFFFF8)
bytes = 0xFFFF8;
ib->ptr[ib->length_dw++] = DMA_PACKET(DMA_PACKET_COPY,
1, 0, 0, bytes);
ib->ptr[ib->length_dw++] = pe & 0xffffffff;
ib->ptr[ib->length_dw++] = src & 0xffffffff;
ib->ptr[ib->length_dw++] = upper_32_bits(pe) & 0xff;
ib->ptr[ib->length_dw++] = upper_32_bits(src) & 0xff;
pe += bytes;
src += bytes;
count -= bytes / 8;
}
} else if (flags & R600_PTE_SYSTEM) {
while (count) {
ndw = count * 2;
if (ndw > 0xFFFFE)
......
Markdown is supported
0% .
You are about to add 0 people to the discussion. Proceed with caution.
先完成此消息的编辑!
想要评论请 注册