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drm/nvc0/ttm: use copy engines for async buffer moves 

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
This commit is contained in:
Ben Skeggs 2012-05-04 15:17:28 +10:00
parent fdf53241c1
commit 1a46098e91
1 changed files with 51 additions and 9 deletions
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60
drivers/gpu/drm/nouveau/nouveau_bo.c
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@ -522,6 +522,44 @@ nvc0_bo_move_init(struct nouveau_channel *chan, u32 handle)
return ret;
}
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;