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winsys/amdgpu: extract IB big buffer allocation for re-use

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Reviewed-by: Marek Olšák <marek.olsak@amd.com>
This commit is contained in:
Nicolai Hähnle
2016-05-06 21:37:52 -05:00
parent 9db851b5ee
commit 9e5ed559ba
1 changed files with 29 additions and 17 deletions
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src/gallium/winsys/amdgpu/drm/amdgpu_cs.c
+29 -17
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@@ -336,6 +336,34 @@ static unsigned amdgpu_cs_add_buffer(struct radeon_winsys_cs *rcs,
return index;
}
static bool amdgpu_ib_new_buffer(struct amdgpu_winsys *ws, struct amdgpu_ib *ib,
unsigned buffer_size)
{
struct pb_buffer *pb;
uint8_t *mapped;
pb = ws->base.buffer_create(&ws->base, buffer_size,
ws->info.gart_page_size,
RADEON_DOMAIN_GTT,
RADEON_FLAG_CPU_ACCESS);
if (!pb)
return false;
mapped = ws->base.buffer_map(pb, NULL, PIPE_TRANSFER_WRITE);
if (!mapped) {
pb_reference(&pb, NULL);
return false;
}
pb_reference(&ib->big_ib_buffer, pb);
pb_reference(&pb, NULL);
ib->ib_mapped = mapped;
ib->used_ib_space = 0;
return true;
}
static bool amdgpu_get_new_ib(struct radeon_winsys *ws, struct amdgpu_cs *cs,
enum ib_type ib_type)
{
@@ -374,24 +402,8 @@ static bool amdgpu_get_new_ib(struct radeon_winsys *ws, struct amdgpu_cs *cs,
/* Allocate a new buffer for IBs if the current buffer is all used. */
if (!ib->big_ib_buffer ||
ib->used_ib_space + ib_size > ib->big_ib_buffer->size) {
pb_reference(&ib->big_ib_buffer, NULL);
ib->ib_mapped = NULL;
ib->used_ib_space = 0;
ib->big_ib_buffer = ws->buffer_create(ws, buffer_size,
aws->info.gart_page_size,
RADEON_DOMAIN_GTT,
RADEON_FLAG_CPU_ACCESS);
if (!ib->big_ib_buffer)
if (!amdgpu_ib_new_buffer(aws, ib, buffer_size))
return false;
ib->ib_mapped = ws->buffer_map(ib->big_ib_buffer, NULL,
PIPE_TRANSFER_WRITE);
if (!ib->ib_mapped) {
pb_reference(&ib->big_ib_buffer, NULL);
return false;
}
}
info->ib_mc_address = amdgpu_winsys_bo(ib->big_ib_buffer)->va +