Re: [Nouveau] [PATCH 1/2] nv30/draw: rework some of the output vertex buffer logic
On 25.05.2015 21:29, Ilia Mirkin wrote:
This makes the vertex buffer go to GART, not VRAM, and redoes the
mapping to not use the UNSYNCHRONIZED access (which is meaningless on a
VRAM buffer anyways). While we're at it, add some flushes for VBO data.
Moving the vertex buffer from VRAM to GART makes glxgears work fully
with NV30_SWTNL=1. The other changes just seem like a good idea. I'm not
sure *why* moving the buffer from VRAM makes it work... perhaps
something doesn't get flushed in time? However this is a single use by
the GPU buffer, so STREAM seems like the correct usage semantic for it.
i'm not really happy moving things to gart and don't see why this
resolves the issue but granted if it works out :-)
Reviewed-by: Tobias Klausmann
Signed-off-by: Ilia Mirkin
Cc: "10.5 10.6"
---
src/gallium/drivers/nouveau/nv30/nv30_draw.c | 30 +---
1 file changed, 23 insertions(+), 7 deletions(-)
diff --git a/src/gallium/drivers/nouveau/nv30/nv30_draw.c
b/src/gallium/drivers/nouveau/nv30/nv30_draw.c
index 6a0d06f..a681135 100644
--- a/src/gallium/drivers/nouveau/nv30/nv30_draw.c
+++ b/src/gallium/drivers/nouveau/nv30/nv30_draw.c
@@ -71,12 +71,12 @@ nv30_render_allocate_vertices(struct vbuf_render *render,
struct nv30_render *r = nv30_render(render);
struct nv30_context *nv30 = r->nv30;
- r->length = vertex_size * nr_vertices;
+ r->length = (uint32_t)vertex_size * (uint32_t)nr_vertices;
if (r->offset + r->length >= render->max_vertex_buffer_bytes) {
pipe_resource_reference(&r->buffer, NULL);
r->buffer = pipe_buffer_create(&nv30->screen->base.base,
- PIPE_BIND_VERTEX_BUFFER, 0,
+ PIPE_BIND_VERTEX_BUFFER,
PIPE_USAGE_STREAM,
render->max_vertex_buffer_bytes);
if (!r->buffer)
return FALSE;
@@ -91,10 +91,14 @@ static void *
nv30_render_map_vertices(struct vbuf_render *render)
{
struct nv30_render *r = nv30_render(render);
- char *map = pipe_buffer_map(&r->nv30->base.pipe, r->buffer,
- PIPE_TRANSFER_WRITE |
- PIPE_TRANSFER_UNSYNCHRONIZED, &r->transfer);
- return map + r->offset;
+ char *map = pipe_buffer_map_range(
+ &r->nv30->base.pipe, r->buffer,
+ r->offset, r->length,
+ PIPE_TRANSFER_WRITE |
+ PIPE_TRANSFER_DISCARD_RANGE,
+ &r->transfer);
+ assert(map);
+ return map;
}
static void
@@ -127,12 +131,18 @@ nv30_render_draw_elements(struct vbuf_render *render,
for (i = 0; i < r->vertex_info.num_attribs; i++) {
PUSH_RESRC(push, NV30_3D(VTXBUF(i)), BUFCTX_VTXTMP,
nv04_resource(r->buffer), r->offset + r->vtxptr[i],
- NOUVEAU_BO_LOW | NOUVEAU_BO_RD, 0, 0);
+ NOUVEAU_BO_LOW | NOUVEAU_BO_RD, 0, NV30_3D_VTXBUF_DMA1);
}
if (!nv30_state_validate(nv30, ~0, FALSE))
return;
+ if (nv30->base.vbo_dirty) {
+ BEGIN_NV04(push, NV30_3D(VTX_CACHE_INVALIDATE_1710), 1);
+ PUSH_DATA (push, 0);
+ nv30->base.vbo_dirty = FALSE;
+ }
+
BEGIN_NV04(push, NV30_3D(VERTEX_BEGIN_END), 1);
PUSH_DATA (push, r->prim);
@@ -178,6 +188,12 @@ nv30_render_draw_arrays(struct vbuf_render *render, unsigned start, uint nr)
if (!nv30_state_validate(nv30, ~0, FALSE))
return;
+ if (nv30->base.vbo_dirty) {
+ BEGIN_NV04(push, NV30_3D(VTX_CACHE_INVALIDATE_1710), 1);
+ PUSH_DATA (push, 0);
+ nv30->base.vbo_dirty = FALSE;
+ }
+
BEGIN_NV04(push, NV30_3D(VERTEX_BEGIN_END), 1);
PUSH_DATA (push, r->prim);
___
Nouveau mailing list
Nouveau@lists.freedesktop.org
http://lists.freedesktop.org/mailman/listinfo/nouveau
[Nouveau] [PATCH 1/2] nv30/draw: rework some of the output vertex buffer logic
This makes the vertex buffer go to GART, not VRAM, and redoes the
mapping to not use the UNSYNCHRONIZED access (which is meaningless on a
VRAM buffer anyways). While we're at it, add some flushes for VBO data.
Moving the vertex buffer from VRAM to GART makes glxgears work fully
with NV30_SWTNL=1. The other changes just seem like a good idea. I'm not
sure *why* moving the buffer from VRAM makes it work... perhaps
something doesn't get flushed in time? However this is a single use by
the GPU buffer, so STREAM seems like the correct usage semantic for it.
Signed-off-by: Ilia Mirkin
Cc: "10.5 10.6"
---
src/gallium/drivers/nouveau/nv30/nv30_draw.c | 30 +---
1 file changed, 23 insertions(+), 7 deletions(-)
diff --git a/src/gallium/drivers/nouveau/nv30/nv30_draw.c
b/src/gallium/drivers/nouveau/nv30/nv30_draw.c
index 6a0d06f..a681135 100644
--- a/src/gallium/drivers/nouveau/nv30/nv30_draw.c
+++ b/src/gallium/drivers/nouveau/nv30/nv30_draw.c
@@ -71,12 +71,12 @@ nv30_render_allocate_vertices(struct vbuf_render *render,
struct nv30_render *r = nv30_render(render);
struct nv30_context *nv30 = r->nv30;
- r->length = vertex_size * nr_vertices;
+ r->length = (uint32_t)vertex_size * (uint32_t)nr_vertices;
if (r->offset + r->length >= render->max_vertex_buffer_bytes) {
pipe_resource_reference(&r->buffer, NULL);
r->buffer = pipe_buffer_create(&nv30->screen->base.base,
- PIPE_BIND_VERTEX_BUFFER, 0,
+ PIPE_BIND_VERTEX_BUFFER,
PIPE_USAGE_STREAM,
render->max_vertex_buffer_bytes);
if (!r->buffer)
return FALSE;
@@ -91,10 +91,14 @@ static void *
nv30_render_map_vertices(struct vbuf_render *render)
{
struct nv30_render *r = nv30_render(render);
- char *map = pipe_buffer_map(&r->nv30->base.pipe, r->buffer,
- PIPE_TRANSFER_WRITE |
- PIPE_TRANSFER_UNSYNCHRONIZED, &r->transfer);
- return map + r->offset;
+ char *map = pipe_buffer_map_range(
+ &r->nv30->base.pipe, r->buffer,
+ r->offset, r->length,
+ PIPE_TRANSFER_WRITE |
+ PIPE_TRANSFER_DISCARD_RANGE,
+ &r->transfer);
+ assert(map);
+ return map;
}
static void
@@ -127,12 +131,18 @@ nv30_render_draw_elements(struct vbuf_render *render,
for (i = 0; i < r->vertex_info.num_attribs; i++) {
PUSH_RESRC(push, NV30_3D(VTXBUF(i)), BUFCTX_VTXTMP,
nv04_resource(r->buffer), r->offset + r->vtxptr[i],
- NOUVEAU_BO_LOW | NOUVEAU_BO_RD, 0, 0);
+ NOUVEAU_BO_LOW | NOUVEAU_BO_RD, 0, NV30_3D_VTXBUF_DMA1);
}
if (!nv30_state_validate(nv30, ~0, FALSE))
return;
+ if (nv30->base.vbo_dirty) {
+ BEGIN_NV04(push, NV30_3D(VTX_CACHE_INVALIDATE_1710), 1);
+ PUSH_DATA (push, 0);
+ nv30->base.vbo_dirty = FALSE;
+ }
+
BEGIN_NV04(push, NV30_3D(VERTEX_BEGIN_END), 1);
PUSH_DATA (push, r->prim);
@@ -178,6 +188,12 @@ nv30_render_draw_arrays(struct vbuf_render *render,
unsigned start, uint nr)
if (!nv30_state_validate(nv30, ~0, FALSE))
return;
+ if (nv30->base.vbo_dirty) {
+ BEGIN_NV04(push, NV30_3D(VTX_CACHE_INVALIDATE_1710), 1);
+ PUSH_DATA (push, 0);
+ nv30->base.vbo_dirty = FALSE;
+ }
+
BEGIN_NV04(push, NV30_3D(VERTEX_BEGIN_END), 1);
PUSH_DATA (push, r->prim);
--
2.3.6
___
Nouveau mailing list
Nouveau@lists.freedesktop.org
http://lists.freedesktop.org/mailman/listinfo/nouveau
