From: Christian K?nig <christian.koe...@amd.com>
Fill VM page tables from the GART page table if applicable.
v2: fix copy&paste error
Signed-off-by: Christian K?nig <christian.koenig at amd.com>
---
drivers/gpu/drm/radeon/cik_sdma.c | 21 ++++++++++++++++++++-
1 file changed, 20 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/radeon/cik_sdma.c
b/drivers/gpu/drm/radeon/cik_sdma.c
index f7e46cf..3c2407b 100644
--- a/drivers/gpu/drm/radeon/cik_sdma.c
+++ b/drivers/gpu/drm/radeon/cik_sdma.c
@@ -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)
--
1.9.1
