From fdf53241c1845a4a1d8bd2df65f574b281649957 Mon Sep 17 00:00:00 2001 From: Ben Skeggs Date: Fri, 4 May 2012 15:15:12 +1000 Subject: [PATCH] drm/nva3/ttm: use copy engine for async buffer moves Signed-off-by: Ben Skeggs --- drivers/gpu/drm/nouveau/nouveau_bo.c | 41 +++++++++++++++++++++++++++- 1 file changed, 40 insertions(+), 1 deletion(-) 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 @@ -561,6 +561,44 @@ nvc0_bo_move_m2mf(struct nouveau_channel *chan, struct ttm_buffer_object *bo, return 0; } +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 }, {}, -- GitLab