From 0952645fe04a27968565ea4d913500c23b1b11e3 Mon Sep 17 00:00:00 2001 From: Dave Airlie Date: Fri, 26 Jun 2009 15:05:02 +1000 Subject: [PATCH] r200: make use of DMA buffers for Elts a lot better. This allows us to return the unused portion of the dma buffer to the allocator instead of wasting nearly 16k a pop. --- src/mesa/drivers/dri/r200/r200_cmdbuf.c | 15 +++++---------- src/mesa/drivers/dri/radeon/radeon_dma.c | 19 +++++++++++++------ src/mesa/drivers/dri/radeon/radeon_dma.h | 1 + 3 files changed, 19 insertions(+), 16 deletions(-) diff --git a/src/mesa/drivers/dri/r200/r200_cmdbuf.c b/src/mesa/drivers/dri/r200/r200_cmdbuf.c index df9dd83344c..fe173b601ad 100644 --- a/src/mesa/drivers/dri/r200/r200_cmdbuf.c +++ b/src/mesa/drivers/dri/r200/r200_cmdbuf.c @@ -213,6 +213,9 @@ void r200FlushElts(GLcontext *ctx) radeon_bo_unref(rmesa->radeon.tcl.elt_dma_bo); rmesa->radeon.tcl.elt_dma_bo = NULL; + if (R200_ELT_BUF_SZ > elt_used) + radeonReturnDmaRegion(rmesa, R200_ELT_BUF_SZ - elt_used); + if (R200_DEBUG & DEBUG_SYNC) { fprintf(stderr, "%s: Syncing\n", __FUNCTION__); radeonFinish( rmesa->radeon.glCtx ); @@ -233,21 +236,13 @@ GLushort *r200AllocEltsOpenEnded( r200ContextPtr rmesa, radeonEmitState(&rmesa->radeon); - rmesa->radeon.tcl.elt_dma_bo = radeon_bo_open(rmesa->radeon.radeonScreen->bom, - 0, R200_ELT_BUF_SZ, 4, - RADEON_GEM_DOMAIN_GTT, 0); - rmesa->radeon.tcl.elt_dma_offset = 0; + radeonAllocDmaRegion(&rmesa->radeon, &rmesa->radeon.tcl.elt_dma_bo, + &rmesa->radeon.tcl.elt_dma_offset, R200_ELT_BUF_SZ, 4); rmesa->tcl.elt_used = min_nr * 2; - radeon_validate_bo(&rmesa->radeon, rmesa->radeon.tcl.elt_dma_bo, - RADEON_GEM_DOMAIN_GTT, 0); - if (radeon_revalidate_bos(rmesa->radeon.glCtx) == GL_FALSE) - fprintf(stderr,"failure to revalidate BOs - badness\n"); - radeon_bo_map(rmesa->radeon.tcl.elt_dma_bo, 1); retval = rmesa->radeon.tcl.elt_dma_bo->ptr + rmesa->radeon.tcl.elt_dma_offset; - if (R200_DEBUG & DEBUG_PRIMS) fprintf(stderr, "%s: header prim %x \n", __FUNCTION__, primitive); diff --git a/src/mesa/drivers/dri/radeon/radeon_dma.c b/src/mesa/drivers/dri/radeon/radeon_dma.c index 48b0d638183..0b91434b2ba 100644 --- a/src/mesa/drivers/dri/radeon/radeon_dma.c +++ b/src/mesa/drivers/dri/radeon/radeon_dma.c @@ -167,7 +167,7 @@ void radeonRefillCurrentDmaRegion(radeonContextPtr rmesa, int size) size = MAX2(size, MAX_DMA_BUF_SZ); if (RADEON_DEBUG & (DEBUG_IOCTL | DEBUG_DMA)) - fprintf(stderr, "%s\n", __FUNCTION__); + fprintf(stderr, "%s %d\n", __FUNCTION__, rmesa->dma.nr_released_bufs); if (rmesa->dma.flush) { rmesa->dma.flush(rmesa->glCtx); @@ -178,11 +178,7 @@ void radeonRefillCurrentDmaRegion(radeonContextPtr rmesa, int size) rmesa->dma.nr_released_bufs = 0; } - if (rmesa->dma.current) { - radeon_bo_unmap(rmesa->dma.current); - radeon_bo_unref(rmesa->dma.current); - rmesa->dma.current = 0; - } + radeonReleaseDmaRegion(rmesa); again_alloc: rmesa->dma.current = radeon_bo_open(rmesa->radeonScreen->bom, @@ -244,6 +240,17 @@ void radeonAllocDmaRegion(radeonContextPtr rmesa, assert(rmesa->dma.current_used <= rmesa->dma.current->size); } +void radeonReturnDmaRegion(radeonContextPtr rmesa, int return_bytes) +{ + if (!rmesa->dma.current) + return; + + if (RADEON_DEBUG & DEBUG_IOCTL) + fprintf(stderr, "%s %d\n", __FUNCTION__, return_bytes); + rmesa->dma.current_used -= return_bytes; + rmesa->dma.current_vertexptr = rmesa->dma.current_used; +} + void radeonReleaseDmaRegion(radeonContextPtr rmesa) { if (RADEON_DEBUG & DEBUG_IOCTL) diff --git a/src/mesa/drivers/dri/radeon/radeon_dma.h b/src/mesa/drivers/dri/radeon/radeon_dma.h index 06e388fc1de..c6eabd3bc86 100644 --- a/src/mesa/drivers/dri/radeon/radeon_dma.h +++ b/src/mesa/drivers/dri/radeon/radeon_dma.h @@ -39,6 +39,7 @@ void radeonEmitVec12(uint32_t *out, GLvoid * data, int stride, int count); void rcommon_emit_vector(GLcontext * ctx, struct radeon_aos *aos, GLvoid * data, int size, int stride, int count); +void radeonReturnDmaRegion(radeonContextPtr rmesa, int return_bytes); void radeonRefillCurrentDmaRegion(radeonContextPtr rmesa, int size); void radeonAllocDmaRegion(radeonContextPtr rmesa, struct radeon_bo **pbo, int *poffset, -- 2.30.2