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drm/nv98/ttm: add in a (disabled) crypto engine buffer copy method 

Disabled for the moment until some performance issues are sorted out, code
committed as a reference point.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
This commit is contained in:
Ben Skeggs 2012-05-04 14:34:16 +10:00
parent 4c193d254e
commit 5490e5dfb9
1 changed files with 20 additions and 1 deletions
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21
drivers/gpu/drm/nouveau/nouveau_bo.c
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@ -561,6 +561,24 @@ nvc0_bo_move_m2mf(struct nouveau_channel *chan, struct ttm_buffer_object *bo,
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)
{
struct nouveau_mem *node = old_mem->mm_node;
int ret = RING_SPACE(chan, 7);
if (ret == 0) {
BEGIN_NV04(chan, NvSubCopy, 0x0320, 6);
OUT_RING (chan, upper_32_bits(node->vma[0].offset));
OUT_RING (chan, lower_32_bits(node->vma[0].offset));
OUT_RING (chan, upper_32_bits(node->vma[1].offset));
OUT_RING (chan, lower_32_bits(node->vma[1].offset));
OUT_RING (chan, 0x00000000 /* COPY */);
OUT_RING (chan, new_mem->num_pages << PAGE_SHIFT);
}
return ret;
}
static int
nv84_bo_move_exec(struct nouveau_channel *chan, struct ttm_buffer_object *bo,
struct ttm_mem_reg *old_mem, struct ttm_mem_reg *new_mem)
@ -842,7 +860,8 @@ nouveau_bo_move_init(struct nouveau_channel *chan)
{ "CRYPT", 0x74c1, nv84_bo_move_exec, nv50_bo_move_init },
{ "M2MF", 0x5039, nv50_bo_move_m2mf, nv50_bo_move_init },
{ "M2MF", 0x0039, nv04_bo_move_m2mf, nv04_bo_move_init },
{}
{},
{ "CRYPT", 0x88b4, nv98_bo_move_exec, nv50_bo_move_init },
}, *mthd = _methods;
const char *name = "CPU";
int ret;