From eb430b0e948caf02b9f4095d0e1435880073c2aa Mon Sep 17 00:00:00 2001 From: Dave Airlie Date: Mon, 23 Aug 2010 20:28:02 +1000 Subject: [PATCH] r300g: avoid stall in no-tcl drawing when mapping vbo the current code reuses the same vbo over and over, however after a flush we'd stall and wait for mapping on the vbo when we should just fire and forget. On a gears test this brings me from ~620 to ~750 on my rv530 in swtcl mode. Signed-off-by: Dave Airlie --- src/gallium/drivers/r300/r300_context.h | 4 ++++ src/gallium/drivers/r300/r300_flush.c | 2 ++ src/gallium/drivers/r300/r300_render.c | 35 +++++++++++++++++++-------------- 3 files changed, 26 insertions(+), 15 deletions(-) diff --git a/src/gallium/drivers/r300/r300_context.h b/src/gallium/drivers/r300/r300_context.h index 6fa7f47..030bb23 100644 --- a/src/gallium/drivers/r300/r300_context.h +++ b/src/gallium/drivers/r300/r300_context.h @@ -449,6 +449,7 @@ struct r300_context { struct r300_screen *screen; /* Draw module. Used mostly for SW TCL. */ struct draw_context* draw; + size_t draw_vbo_size; /* Accelerated blit support. */ struct blitter_context* blitter; /* Stencil two-sided reference value fallback. */ @@ -649,6 +650,9 @@ void r300_translate_index_buffer(struct r300_context *r300, /* r300_render_stencilref.c */ void r300_plug_in_stencil_ref_fallback(struct r300_context *r300); +/* r300 render */ +void r300_draw_flush_vbuf(struct r300_context *r300); + /* r300_state.c */ enum r300_fb_state_change { R300_CHANGED_FB_STATE = 0, diff --git a/src/gallium/drivers/r300/r300_flush.c b/src/gallium/drivers/r300/r300_flush.c index fe182b6..f00707b 100644 --- a/src/gallium/drivers/r300/r300_flush.c +++ b/src/gallium/drivers/r300/r300_flush.c @@ -43,6 +43,8 @@ static void r300_flush(struct pipe_context* pipe, u_upload_flush(r300->upload_vb); u_upload_flush(r300->upload_ib); + if (r300->draw) + r300_draw_flush_vbuf(r300); if (r300->dirty_hw) { r300_emit_hyperz_end(r300); r300_emit_query_end(r300); diff --git a/src/gallium/drivers/r300/r300_render.c b/src/gallium/drivers/r300/r300_render.c index 86b11ca..7344705 100644 --- a/src/gallium/drivers/r300/r300_render.c +++ b/src/gallium/drivers/r300/r300_render.c @@ -726,8 +726,6 @@ struct r300_render { unsigned hwprim; /* VBO */ - struct pipe_resource* vbo; - size_t vbo_size; size_t vbo_offset; size_t vbo_max_used; void * vbo_ptr; @@ -759,31 +757,31 @@ static boolean r300_render_allocate_vertices(struct vbuf_render* render, struct pipe_screen* screen = r300->context.screen; size_t size = (size_t)vertex_size * (size_t)count; - if (size + r300render->vbo_offset > r300render->vbo_size) + if (size + r300render->vbo_offset > r300->draw_vbo_size) { - pipe_resource_reference(&r300->vbo, NULL); - r300render->vbo = pipe_buffer_create(screen, - PIPE_BIND_VERTEX_BUFFER, - R300_MAX_DRAW_VBO_SIZE); + pipe_resource_reference(&r300->vbo, NULL); + r300->vbo = pipe_buffer_create(screen, + PIPE_BIND_VERTEX_BUFFER, + R300_MAX_DRAW_VBO_SIZE); r300render->vbo_offset = 0; - r300render->vbo_size = R300_MAX_DRAW_VBO_SIZE; + r300->draw_vbo_size = R300_MAX_DRAW_VBO_SIZE; } r300render->vertex_size = vertex_size; - r300->vbo = r300render->vbo; r300->vbo_offset = r300render->vbo_offset; - return (r300render->vbo) ? TRUE : FALSE; + return (r300->vbo) ? TRUE : FALSE; } static void* r300_render_map_vertices(struct vbuf_render* render) { struct r300_render* r300render = r300_render(render); + struct r300_context* r300 = r300render->r300; assert(!r300render->vbo_transfer); r300render->vbo_ptr = pipe_buffer_map(&r300render->r300->context, - r300render->vbo, + r300->vbo, PIPE_TRANSFER_WRITE, &r300render->vbo_transfer); @@ -798,12 +796,13 @@ static void r300_render_unmap_vertices(struct vbuf_render* render, { struct r300_render* r300render = r300_render(render); struct pipe_context* context = &r300render->r300->context; + struct r300_context* r300 = r300render->r300; assert(r300render->vbo_transfer); r300render->vbo_max_used = MAX2(r300render->vbo_max_used, r300render->vertex_size * (max + 1)); - pipe_buffer_unmap(context, r300render->vbo, r300render->vbo_transfer); + pipe_buffer_unmap(context, r300->vbo, r300render->vbo_transfer); r300render->vbo_transfer = NULL; } @@ -880,7 +879,7 @@ static void r300_render_draw_elements(struct vbuf_render* render, struct r300_context* r300 = r300render->r300; int i; unsigned end_cs_dwords; - unsigned max_index = (r300render->vbo_size - r300render->vbo_offset) / + unsigned max_index = (r300->draw_vbo_size - r300render->vbo_offset) / (r300render->r300->vertex_info.size * 4) - 1; unsigned short_count; unsigned free_dwords; @@ -956,8 +955,6 @@ static struct vbuf_render* r300_render_create(struct r300_context* r300) r300render->base.release_vertices = r300_render_release_vertices; r300render->base.destroy = r300_render_destroy; - r300render->vbo = NULL; - r300render->vbo_size = 0; r300render->vbo_offset = 0; return &r300render->base; @@ -986,6 +983,14 @@ struct draw_stage* r300_draw_stage(struct r300_context* r300) return stage; } +void r300_draw_flush_vbuf(struct r300_context *r300) +{ + struct r300_render *r300render; + + pipe_resource_reference(&r300->vbo, NULL); + r300->draw_vbo_size = 0; +} + /**************************************************************************** * End of SW TCL functions * ***************************************************************************/ -- 2.7.4