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drm/radeon: add VM GART copy optimization to NI as well 

Signed-off-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Christian König 2014-07-30 21:05:16 +02:00 committed by Alex Deucher
parent ee26d83ff0
commit 5a341be27f
1 changed files with 20 additions and 1 deletions
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21
drivers/gpu/drm/radeon/ni_dma.c
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@ -330,7 +330,26 @@ void cayman_dma_vm_set_page(struct radeon_device *rdev,
trace_radeon_vm_set_page(pe, addr, count, incr, flags);
if ((flags & R600_PTE_SYSTEM) || (count == 1)) {
if ((flags & R600_PTE_GART_MASK) == R600_PTE_GART_MASK) {
uint64_t src = rdev->gart.table_addr + (addr >> 12) * 8;
while (count) {
ndw = count * 2;
if (ndw > 0xFFFFE)
ndw = 0xFFFFE;
ib->ptr[ib->length_dw++] = DMA_PACKET(DMA_PACKET_COPY,
0, 0, ndw);
ib->ptr[ib->length_dw++] = lower_32_bits(pe);
ib->ptr[ib->length_dw++] = lower_32_bits(src);
ib->ptr[ib->length_dw++] = upper_32_bits(pe) & 0xff;
ib->ptr[ib->length_dw++] = upper_32_bits(src) & 0xff;
pe += ndw * 4;
src += ndw * 4;
count -= ndw / 2;
}
} else if ((flags & R600_PTE_SYSTEM) || (count == 1)) {
while (count) {
ndw = count * 2;
if (ndw > 0xFFFFE)