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| author | Ben Skeggs <bskeggs@redhat.com> | 2012-05-04 15:15:12 +1000 |
|---|---|---|
| committer | Ben Skeggs <bskeggs@redhat.com> | 2012-05-24 16:56:21 +1000 |
| commit | fdf53241c1845a4a1d8bd2df65f574b281649957 (patch) | |
| tree | d9cf8102465af24257edb99bc778b3142cd5bb83 /drivers/gpu/drm/nouveau/nouveau_bo.c | |
| parent | 5490e5dfb9e9d654b0ed06c2989a73402496adf6 (diff) | |
| download | lwn-fdf53241c1845a4a1d8bd2df65f574b281649957.tar.gz lwn-fdf53241c1845a4a1d8bd2df65f574b281649957.zip | |
drm/nva3/ttm: use copy engine for async buffer moves
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Diffstat (limited to 'drivers/gpu/drm/nouveau/nouveau_bo.c')
| -rw-r--r-- | drivers/gpu/drm/nouveau/nouveau_bo.c | 41 |
1 files changed, 40 insertions, 1 deletions
diff --git a/drivers/gpu/drm/nouveau/nouveau_bo.c b/drivers/gpu/drm/nouveau/nouveau_bo.c index 771ce371c4ba..fc463ef92d42 100644 --- a/drivers/gpu/drm/nouveau/nouveau_bo.c +++ b/drivers/gpu/drm/nouveau/nouveau_bo.c @@ -562,6 +562,44 @@ nvc0_bo_move_m2mf(struct nouveau_channel *chan, struct ttm_buffer_object *bo, } static int +nva3_bo_move_copy(struct nouveau_channel *chan, struct ttm_buffer_object *bo, + struct ttm_mem_reg *old_mem, struct ttm_mem_reg *new_mem) +{ + struct nouveau_mem *node = old_mem->mm_node; + u64 src_offset = node->vma[0].offset; + u64 dst_offset = node->vma[1].offset; + u32 page_count = new_mem->num_pages; + int ret; + + page_count = new_mem->num_pages; + while (page_count) { + int line_count = (page_count > 8191) ? 8191 : page_count; + + ret = RING_SPACE(chan, 11); + if (ret) + return ret; + + BEGIN_NV04(chan, NvSubCopy, 0x030c, 8); + OUT_RING (chan, upper_32_bits(src_offset)); + OUT_RING (chan, lower_32_bits(src_offset)); + OUT_RING (chan, upper_32_bits(dst_offset)); + OUT_RING (chan, lower_32_bits(dst_offset)); + OUT_RING (chan, PAGE_SIZE); + OUT_RING (chan, PAGE_SIZE); + OUT_RING (chan, PAGE_SIZE); + OUT_RING (chan, line_count); + BEGIN_NV04(chan, NvSubCopy, 0x0300, 1); + OUT_RING (chan, 0x00000110); + + page_count -= line_count; + src_offset += (PAGE_SIZE * line_count); + dst_offset += (PAGE_SIZE * line_count); + } + + return 0; +} + +static int nv98_bo_move_exec(struct nouveau_channel *chan, struct ttm_buffer_object *bo, struct ttm_mem_reg *old_mem, struct ttm_mem_reg *new_mem) { @@ -856,8 +894,9 @@ nouveau_bo_move_init(struct nouveau_channel *chan) int (*init)(struct nouveau_channel *, u32 handle); } _methods[] = { { "COPY", 0xa0b5, nve0_bo_move_copy, nvc0_bo_move_init }, - { "M2MF", 0x9039, nvc0_bo_move_m2mf, nvc0_bo_move_init }, + { "COPY", 0x85b5, nva3_bo_move_copy, nv50_bo_move_init }, { "CRYPT", 0x74c1, nv84_bo_move_exec, nv50_bo_move_init }, + { "M2MF", 0x9039, nvc0_bo_move_m2mf, nvc0_bo_move_init }, { "M2MF", 0x5039, nv50_bo_move_m2mf, nv50_bo_move_init }, { "M2MF", 0x0039, nv04_bo_move_m2mf, nv04_bo_move_init }, {}, |