[Mesa-dev] [PATCH 12/21] winsys/amdgpu: build handles and flags list late on submit thread
Nicolai Hähnle
nhaehnle at gmail.com
Wed Feb 8 12:42:54 UTC 2017
From: Nicolai Hähnle <nicolai.haehnle at amd.com>
This probably has only minor performance effects, but it simplifies some
subsequent code slightly.
Ideally, it could also be used to simplify the handling of slab buffers
in the same way, but unfortunately that's not possible as long as we need
indices for relocations.
---
src/gallium/winsys/amdgpu/drm/amdgpu_cs.c | 41 +++++++++++++++++++------------
src/gallium/winsys/amdgpu/drm/amdgpu_cs.h | 4 ++-
2 files changed, 28 insertions(+), 17 deletions(-)
diff --git a/src/gallium/winsys/amdgpu/drm/amdgpu_cs.c b/src/gallium/winsys/amdgpu/drm/amdgpu_cs.c
index 754b8c2..daa05e0 100644
--- a/src/gallium/winsys/amdgpu/drm/amdgpu_cs.c
+++ b/src/gallium/winsys/amdgpu/drm/amdgpu_cs.c
@@ -325,33 +325,21 @@ amdgpu_do_add_real_buffer(struct amdgpu_cs_context *cs, struct amdgpu_winsys_bo
unsigned new_max =
MAX2(cs->max_real_buffers + 16, (unsigned)(cs->max_real_buffers * 1.3));
struct amdgpu_cs_buffer *new_buffers;
- amdgpu_bo_handle *new_handles;
- uint8_t *new_flags;
new_buffers = MALLOC(new_max * sizeof(*new_buffers));
- new_handles = MALLOC(new_max * sizeof(*new_handles));
- new_flags = MALLOC(new_max * sizeof(*new_flags));
- if (!new_buffers || !new_handles || !new_flags) {
+ if (!new_buffers) {
fprintf(stderr, "amdgpu_do_add_buffer: allocation failed\n");
FREE(new_buffers);
- FREE(new_handles);
- FREE(new_flags);
return -1;
}
memcpy(new_buffers, cs->real_buffers, cs->num_real_buffers * sizeof(*new_buffers));
- memcpy(new_handles, cs->handles, cs->num_real_buffers * sizeof(*new_handles));
- memcpy(new_flags, cs->flags, cs->num_real_buffers * sizeof(*new_flags));
FREE(cs->real_buffers);
- FREE(cs->handles);
- FREE(cs->flags);
cs->max_real_buffers = new_max;
cs->real_buffers = new_buffers;
- cs->handles = new_handles;
- cs->flags = new_flags;
}
idx = cs->num_real_buffers;
@@ -359,8 +347,6 @@ amdgpu_do_add_real_buffer(struct amdgpu_cs_context *cs, struct amdgpu_winsys_bo
memset(buffer, 0, sizeof(*buffer));
amdgpu_winsys_bo_reference(&buffer->bo, bo);
- cs->handles[idx] = bo->bo;
- cs->flags[idx] = 0;
p_atomic_inc(&bo->num_cs_references);
cs->num_real_buffers++;
@@ -482,7 +468,6 @@ static unsigned amdgpu_cs_add_buffer(struct radeon_winsys_cs *rcs,
buffer = &cs->real_buffers[index];
buffer->u.real.priority_usage |= 1llu << priority;
buffer->usage |= usage;
- cs->flags[index] = MAX2(cs->flags[index], priority / 4);
cs->last_added_bo = bo;
cs->last_added_bo_index = index;
@@ -1064,10 +1049,34 @@ void amdgpu_cs_submit_ib(void *job, int thread_index)
free(handles);
pipe_mutex_unlock(ws->global_bo_list_lock);
} else {
+ if (cs->max_real_submit < cs->num_real_buffers) {
+ FREE(cs->handles);
+ FREE(cs->flags);
+
+ cs->handles = MALLOC(sizeof(*cs->handles) * cs->num_real_buffers);
+ cs->flags = MALLOC(sizeof(*cs->flags) * cs->num_real_buffers);
+
+ if (!cs->handles || !cs->flags) {
+ cs->max_real_submit = 0;
+ r = -ENOMEM;
+ goto bo_list_error;
+ }
+ }
+
+ for (i = 0; i < cs->num_real_buffers; ++i) {
+ struct amdgpu_cs_buffer *buffer = &cs->real_buffers[i];
+
+ assert(buffer->u.real.priority_usage != 0);
+
+ cs->handles[i] = buffer->bo->bo;
+ cs->flags[i] = (util_last_bit64(buffer->u.real.priority_usage) - 1) / 4;
+ }
+
r = amdgpu_bo_list_create(ws->dev, cs->num_real_buffers,
cs->handles, cs->flags,
&cs->request.resources);
}
+bo_list_error:
if (r) {
fprintf(stderr, "amdgpu: buffer list creation failed (%d)\n", r);
diff --git a/src/gallium/winsys/amdgpu/drm/amdgpu_cs.h b/src/gallium/winsys/amdgpu/drm/amdgpu_cs.h
index 495d55b..bdf7cb2 100644
--- a/src/gallium/winsys/amdgpu/drm/amdgpu_cs.h
+++ b/src/gallium/winsys/amdgpu/drm/amdgpu_cs.h
@@ -84,9 +84,11 @@ struct amdgpu_cs_context {
/* Buffers. */
unsigned max_real_buffers;
unsigned num_real_buffers;
+ struct amdgpu_cs_buffer *real_buffers;
+
+ unsigned max_real_submit;
amdgpu_bo_handle *handles;
uint8_t *flags;
- struct amdgpu_cs_buffer *real_buffers;
unsigned num_slab_buffers;
unsigned max_slab_buffers;
--
2.9.3
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