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From c29c2002c2d3d474456a16584fa2ebef43de8544 Mon Sep 17 00:00:00 2001
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From: Dave Airlie <airlied@linux.ie>
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Date: Wed, 6 May 2009 02:54:42 +1000
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Subject: [PATCH] radeon: always pull srcs into CPU space for rendering
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dsts at least get write combined in theory though who knows with blending
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really need an XA already
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---
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src/radeon_bufmgr_gem.c | 16 ++++++++++++++++
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src/radeon_bufmgr_gem.h | 1 +
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src/radeon_exa.c | 6 +++++-
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3 files changed, 22 insertions(+), 1 deletions(-)
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diff --git a/src/radeon_bufmgr_gem.c b/src/radeon_bufmgr_gem.c
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index 634d28d..03d0a20 100644
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--- a/src/radeon_bufmgr_gem.c
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+++ b/src/radeon_bufmgr_gem.c
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@@ -239,6 +239,22 @@ dri_bufmgr_gem_destroy(dri_bufmgr *bufmgr)
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free(bufmgr);
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}
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+void radeon_bufmgr_gem_force_map(dri_bo *buf)
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+{
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+ dri_bufmgr_gem *bufmgr_gem = (dri_bufmgr_gem *)buf->bufmgr;
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+ struct drm_radeon_gem_set_domain sd_args;
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+ dri_bo_gem *gem_bo = (dri_bo_gem *)buf;
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+ int ret;
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+
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+
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+ sd_args.handle = gem_bo->gem_handle;
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+ sd_args.read_domains = RADEON_GEM_DOMAIN_GTT;
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+ sd_args.write_domain = 0;
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+
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+ ret = drmCommandWriteRead(bufmgr_gem->fd, DRM_RADEON_GEM_SET_DOMAIN,
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+ &sd_args, sizeof(sd_args));
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+}
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+
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void radeon_bufmgr_gem_wait_rendering(dri_bo *buf)
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{
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dri_bufmgr_gem *bufmgr_gem = (dri_bufmgr_gem *)buf->bufmgr;
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diff --git a/src/radeon_bufmgr_gem.h b/src/radeon_bufmgr_gem.h
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index 52b3d99..eb7974e 100644
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--- a/src/radeon_bufmgr_gem.h
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+++ b/src/radeon_bufmgr_gem.h
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@@ -4,6 +4,7 @@
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#include "radeon_dri_bufmgr.h"
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+extern void radeon_bufmgr_gem_force_map(dri_bo *buf);
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extern void radeon_bufmgr_gem_wait_rendering(dri_bo *bo);
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void radeon_bufmgr_gem_emit_reloc(dri_bo *bo, struct radeon_relocs_info *reloc_info, uint32_t *head, uint32_t *count_p, uint32_t read_domains, uint32_t write_domain);
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void radeon_gem_bufmgr_post_submit(dri_bufmgr *bufmgr, struct radeon_relocs_info *reloc_info, int error);
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diff --git a/src/radeon_exa.c b/src/radeon_exa.c
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index cc48a7a..267c5c3 100644
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--- a/src/radeon_exa.c
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+++ b/src/radeon_exa.c
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@@ -272,7 +272,11 @@ static Bool RADEONPrepareAccess(PixmapPtr pPix, int index)
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if (radeon_bufmgr_gem_has_references(driver_priv->bo))
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RADEONCPFlushIndirect(pScrn, 0);
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- radeon_bufmgr_gem_wait_rendering(driver_priv->bo);
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+ /* if we hit a sw fallback for a src or mask pull them into cpu accessible space */
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+ if (index)
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+ radeon_bufmgr_gem_force_map(driver_priv->bo);
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+ else
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+ radeon_bufmgr_gem_wait_rendering(driver_priv->bo);
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/* flush IB */
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ret = dri_bo_map(driver_priv->bo, 1);
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--
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1.6.2.2
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