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authorBen Skeggs <bskeggs@redhat.com>2012-05-04 09:17:28 +0400
committerBen Skeggs <bskeggs@redhat.com>2012-05-24 10:56:23 +0400
commit1a46098e910b96337f0fe3838223db43b923bad4 (patch)
tree1d0d09e6a48a2f11d9dc0e2f2f409fb8149c9a3f /drivers/gpu/drm
parentfdf53241c1845a4a1d8bd2df65f574b281649957 (diff)
downloadlinux-1a46098e910b96337f0fe3838223db43b923bad4.tar.xz
drm/nvc0/ttm: use copy engines for async buffer moves
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Diffstat (limited to 'drivers/gpu/drm')
-rw-r--r--drivers/gpu/drm/nouveau/nouveau_bo.c60
1 files changed, 51 insertions, 9 deletions
diff --git a/drivers/gpu/drm/nouveau/nouveau_bo.c b/drivers/gpu/drm/nouveau/nouveau_bo.c
index fc463ef92d42..7f80ed523562 100644
--- a/drivers/gpu/drm/nouveau/nouveau_bo.c
+++ b/drivers/gpu/drm/nouveau/nouveau_bo.c
@@ -523,6 +523,44 @@ nvc0_bo_move_init(struct nouveau_channel *chan, u32 handle)
}
static int
+nvc0_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_NVC0(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_NVC0(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
nvc0_bo_move_m2mf(struct nouveau_channel *chan, struct ttm_buffer_object *bo,
struct ttm_mem_reg *old_mem, struct ttm_mem_reg *new_mem)
{
@@ -887,28 +925,32 @@ nouveau_bo_move_init(struct nouveau_channel *chan)
struct drm_nouveau_private *dev_priv = chan->dev->dev_private;
static const struct {
const char *name;
+ int engine;
u32 oclass;
int (*exec)(struct nouveau_channel *,
struct ttm_buffer_object *,
struct ttm_mem_reg *, struct ttm_mem_reg *);
int (*init)(struct nouveau_channel *, u32 handle);
} _methods[] = {
- { "COPY", 0xa0b5, nve0_bo_move_copy, 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 },
+ { "COPY", 0, 0xa0b5, nve0_bo_move_copy, nvc0_bo_move_init },
+ { "COPY1", 5, 0x90b8, nvc0_bo_move_copy, nvc0_bo_move_init },
+ { "COPY0", 4, 0x90b5, nvc0_bo_move_copy, nvc0_bo_move_init },
+ { "COPY", 0, 0x85b5, nva3_bo_move_copy, nv50_bo_move_init },
+ { "CRYPT", 0, 0x74c1, nv84_bo_move_exec, nv50_bo_move_init },
+ { "M2MF", 0, 0x9039, nvc0_bo_move_m2mf, nvc0_bo_move_init },
+ { "M2MF", 0, 0x5039, nv50_bo_move_m2mf, nv50_bo_move_init },
+ { "M2MF", 0, 0x0039, nv04_bo_move_m2mf, nv04_bo_move_init },
{},
- { "CRYPT", 0x88b4, nv98_bo_move_exec, nv50_bo_move_init },
+ { "CRYPT", 0, 0x88b4, nv98_bo_move_exec, nv50_bo_move_init },
}, *mthd = _methods;
const char *name = "CPU";
int ret;
do {
- ret = nouveau_gpuobj_gr_new(chan, mthd->oclass, mthd->oclass);
+ u32 handle = (mthd->engine << 16) | mthd->oclass;
+ ret = nouveau_gpuobj_gr_new(chan, handle, mthd->oclass);
if (ret == 0) {
- ret = mthd->init(chan, mthd->oclass);
+ ret = mthd->init(chan, handle);
if (ret == 0) {
dev_priv->ttm.move = mthd->exec;
name = mthd->name;