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drm/radeon: optimize CIK VM handling v2

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Fill VM page tables from the GART page table if applicable.

v2: fix copy&paste error

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 2014-05-27 20:10:28 +02:00 committed by Alex Deucher
parent f3982ac141
commit 3d7938faf3
1 changed files with 20 additions and 1 deletions
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21
drivers/gpu/drm/radeon/cik_sdma.c
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@ -741,7 +741,26 @@ void cik_sdma_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 > 0x1FFFF8)
bytes = 0x1FFFF8;
ib->ptr[ib->length_dw++] = SDMA_PACKET(SDMA_OPCODE_COPY, SDMA_WRITE_SUB_OPCODE_LINEAR, 0);
ib->ptr[ib->length_dw++] = bytes;
ib->ptr[ib->length_dw++] = 0; /* src/dst endian swap */
ib->ptr[ib->length_dw++] = src & 0xffffffff;
ib->ptr[ib->length_dw++] = upper_32_bits(src);
ib->ptr[ib->length_dw++] = pe & 0xffffffff;
ib->ptr[ib->length_dw++] = upper_32_bits(pe);
pe += bytes;
src += bytes;
count -= bytes / 8;
}
} else if (flags & R600_PTE_SYSTEM) {
while (count) {
ndw = count * 2;
if (ndw > 0xFFFFE)