From de3ff5af49369d187d88e5399f388c6e48c5384f Mon Sep 17 00:00:00 2001 From: Jakob Bornecrantz Date: Mon, 29 Nov 2010 20:53:26 +0100 Subject: [PATCH] i915g: Make sure that new vbo gets updated Malloc likes to reuse old address as soon as possible this would cause the new vbo buffer to get the same address as the old. So make sure we set it to NULL when we allocate a new one. This fixes ipers which will fill up a couple of VBO buffers per frame. Signed-off-by: Jakob Bornecrantz --- src/gallium/drivers/i915/TODO | 4 ---- src/gallium/drivers/i915/i915_prim_vbuf.c | 11 ++++++++++- 2 files changed, 10 insertions(+), 5 deletions(-) diff --git a/src/gallium/drivers/i915/TODO b/src/gallium/drivers/i915/TODO index 7fa407c150e..94c428bebf8 100644 --- a/src/gallium/drivers/i915/TODO +++ b/src/gallium/drivers/i915/TODO @@ -18,10 +18,6 @@ Random list of problems with i915g: Texture sampling from Y-tiled buffers seems to work, though (save above problems). -- Review buffer usage/cache domain handling in the winsys. Related: vbo cache - coherency is bunk: openarena tends to have a bunch of flatshaded triangles - popping up all over the screen. - - Need to validate buffers before usage. Currently do_exec on the batchbuffer can fail with -ENOSPC. diff --git a/src/gallium/drivers/i915/i915_prim_vbuf.c b/src/gallium/drivers/i915/i915_prim_vbuf.c index d760b2c4da3..baebbc7bae3 100644 --- a/src/gallium/drivers/i915/i915_prim_vbuf.c +++ b/src/gallium/drivers/i915/i915_prim_vbuf.c @@ -172,6 +172,7 @@ i915_vbuf_render_reserve(struct i915_vbuf_render *i915_render, size_t size) * * Side effects: * Updates hw_offset, sw_offset, index and allocates a new buffer. + * Will set i915->vbo to null on buffer allocation. */ static void i915_vbuf_render_new_buf(struct i915_vbuf_render *i915_render, size_t size) @@ -179,8 +180,16 @@ i915_vbuf_render_new_buf(struct i915_vbuf_render *i915_render, size_t size) struct i915_context *i915 = i915_render->i915; struct i915_winsys *iws = i915->iws; - if (i915_render->vbo) + if (i915_render->vbo) { iws->buffer_destroy(iws, i915_render->vbo); + /* + * XXX If buffers where referenced then this should be done in + * update_vbo_state but since they arn't and malloc likes to reuse + * memory we need to set it to null + */ + i915->vbo = NULL; + i915_render->vbo = NULL; + } i915->vbo_flushed = 0; -- 2.30.2