diff options
Diffstat (limited to 'drivers/gpu/drm/radeon/r200.c')
| -rw-r--r-- | drivers/gpu/drm/radeon/r200.c | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/drivers/gpu/drm/radeon/r200.c b/drivers/gpu/drm/radeon/r200.c index ff1e0cd..1146c99 100644 --- a/drivers/gpu/drm/radeon/r200.c +++ b/drivers/gpu/drm/radeon/r200.c @@ -31,6 +31,7 @@ #include "radeon_reg.h" #include "radeon.h" +#include "r100d.h" #include "r200_reg_safe.h" #include "r100_track.h" @@ -79,6 +80,51 @@ static int r200_get_vtx_size_0(uint32_t vtx_fmt_0) return vtx_size; } +int r200_copy_dma(struct radeon_device *rdev, + uint64_t src_offset, + uint64_t dst_offset, + unsigned num_pages, + struct radeon_fence *fence) +{ + uint32_t size; + uint32_t cur_size; + int i, num_loops; + int r = 0; + + /* radeon pitch is /64 */ + size = num_pages << PAGE_SHIFT; + num_loops = DIV_ROUND_UP(size, 0x1FFFFF); + r = radeon_ring_lock(rdev, num_loops * 4 + 64); + if (r) { + DRM_ERROR("radeon: moving bo (%d).\n", r); + return r; + } + /* Must wait for 2D idle & clean before DMA or hangs might happen */ + radeon_ring_write(rdev, PACKET0(RADEON_WAIT_UNTIL, 0)); + radeon_ring_write(rdev, (1 << 16)); + for (i = 0; i < num_loops; i++) { + cur_size = size; + if (cur_size > 0x1FFFFF) { + cur_size = 0x1FFFFF; + } + size -= cur_size; + radeon_ring_write(rdev, PACKET0(0x720, 2)); + radeon_ring_write(rdev, src_offset); + radeon_ring_write(rdev, dst_offset); + radeon_ring_write(rdev, cur_size | (1 << 31) | (1 << 30)); + src_offset += cur_size; + dst_offset += cur_size; + } + radeon_ring_write(rdev, PACKET0(RADEON_WAIT_UNTIL, 0)); + radeon_ring_write(rdev, RADEON_WAIT_DMA_GUI_IDLE); + if (fence) { + r = radeon_fence_emit(rdev, fence); + } + radeon_ring_unlock_commit(rdev); + return r; +} + + static int r200_get_vtx_size_1(uint32_t vtx_fmt_1) { int vtx_size, i, tex_size; |