diff options
| author | Christian König <christian.koenig@amd.com> | 2014-05-27 16:47:38 +0200 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2014-06-02 10:25:14 -0400 |
| commit | f3982ac141379d7fca32fe94c20527cd347678b3 (patch) | |
| tree | 62d3e4c483ff912235009f78ce90f7bd766a3225 /drivers/gpu/drm/radeon/si_dma.c | |
| parent | 0e97703c5ca98b6119404210cedc453284bacdaa (diff) | |
drm/radeon: optimize SI VM handling
Fill VM page tables from the GART page table if applicable.
Signed-off-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/radeon/si_dma.c')
| -rw-r--r-- | drivers/gpu/drm/radeon/si_dma.c | 20 |
1 files changed, 19 insertions, 1 deletions
diff --git a/drivers/gpu/drm/radeon/si_dma.c b/drivers/gpu/drm/radeon/si_dma.c index cf0fdad8c278..952166930fb8 100644 --- a/drivers/gpu/drm/radeon/si_dma.c +++ b/drivers/gpu/drm/radeon/si_dma.c @@ -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) |