radeon: Optimize memory handling for dma operations.

We keep dma buffer objects in list untill they have been unused for many
draw operations. Current limit of having 100 flushes is just guess for
good performance/memory trade off.

Moving WARN_ONCE macro to common context because it is used in multiple drivers.

Signed-off-by: Pauli Nieminen <suokkos@gmail.com>
This commit is contained in:
Pauli Nieminen 2009-08-14 22:10:24 +03:00 committed by Alex Deucher
parent c745c87b3e
commit bbf2b5c4ff
16 changed files with 163 additions and 93 deletions

View file

@ -2289,8 +2289,11 @@ static GLboolean r200ValidateBuffers(GLcontext *ctx)
{
r200ContextPtr rmesa = R200_CONTEXT(ctx);
struct radeon_renderbuffer *rrb;
struct radeon_dma_bo *dma_bo;
int i, ret;
if (RADEON_DEBUG & DEBUG_IOCTL)
fprintf(stderr, "%s\n", __FUNCTION__);
radeon_cs_space_reset_bos(rmesa->radeon.cmdbuf.cs);
rrb = radeon_get_colorbuffer(&rmesa->radeon);
@ -2323,9 +2326,12 @@ static GLboolean r200ValidateBuffers(GLcontext *ctx)
RADEON_GEM_DOMAIN_GTT | RADEON_GEM_DOMAIN_VRAM, 0);
}
ret = radeon_cs_space_check_with_bo(rmesa->radeon.cmdbuf.cs, rmesa->radeon.dma.current, RADEON_GEM_DOMAIN_GTT, 0);
if (ret)
return GL_FALSE;
dma_bo = first_elem(&rmesa->radeon.dma.reserved);
{
ret = radeon_cs_space_check_with_bo(rmesa->radeon.cmdbuf.cs, dma_bo->bo, RADEON_GEM_DOMAIN_GTT, 0);
if (ret)
return GL_FALSE;
}
return GL_TRUE;
}

View file

@ -39,6 +39,7 @@ WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
#include "main/image.h"
#include "main/imports.h"
#include "main/macros.h"
#include "main/simple_list.h"
#include "swrast/s_context.h"
#include "swrast/s_fog.h"
@ -275,7 +276,7 @@ void r200_swtcl_flush(GLcontext *ctx, uint32_t current_offset)
radeonEmitState(&rmesa->radeon);
r200EmitVertexAOS( rmesa,
rmesa->radeon.swtcl.vertex_size,
rmesa->radeon.dma.current,
first_elem(&rmesa->radeon.dma.reserved)->bo,
current_offset);

View file

@ -51,22 +51,6 @@ typedef struct r300_context r300ContextRec;
typedef struct r300_context *r300ContextPtr;
/* From http://gcc. gnu.org/onlinedocs/gcc-3.2.3/gcc/Variadic-Macros.html .
I suppose we could inline this and use macro to fetch out __LINE__ and stuff in case we run into trouble
with other compilers ... GLUE!
*/
#define WARN_ONCE(a, ...) { \
static int warn##__LINE__=1; \
if(warn##__LINE__){ \
fprintf(stderr, "*********************************WARN_ONCE*********************************\n"); \
fprintf(stderr, "File %s function %s line %d\n", \
__FILE__, __FUNCTION__, __LINE__); \
fprintf(stderr, a, ## __VA_ARGS__);\
fprintf(stderr, "***************************************************************************\n"); \
warn##__LINE__=0;\
} \
}
#include "r300_vertprog.h"

View file

@ -31,6 +31,7 @@
#include "main/state.h"
#include "main/api_validate.h"
#include "main/enums.h"
#include "main/simple_list.h"
#include "r300_reg.h"
#include "r300_context.h"
@ -510,7 +511,7 @@ static void r300SetVertexFormat(GLcontext *ctx, const struct gl_client_array *ar
}
r300->radeon.tcl.aos_count = vbuf->num_attribs;
ret = radeon_cs_space_check_with_bo(r300->radeon.cmdbuf.cs, r300->radeon.dma.current, RADEON_GEM_DOMAIN_GTT, 0);
ret = radeon_cs_space_check_with_bo(r300->radeon.cmdbuf.cs, first_elem(&r300->radeon.dma.reserved)->bo, RADEON_GEM_DOMAIN_GTT, 0);
if (ret)
r300SwitchFallback(ctx, R300_FALLBACK_INVALID_BUFFERS, GL_TRUE);
}

View file

@ -39,6 +39,7 @@ USE OR OTHER DEALINGS IN THE SOFTWARE.
#include "r300_emit.h"
#include "r300_tex.h"
#include "r300_render.h"
#include "main/simple_list.h"
#define EMIT_ATTR( ATTR, STYLE ) \
do { \
@ -617,7 +618,7 @@ void r300_swtcl_flush(GLcontext *ctx, uint32_t current_offset)
r300_emit_scissor(ctx);
r300EmitVertexAOS(rmesa,
rmesa->radeon.swtcl.vertex_size,
rmesa->radeon.dma.current,
first_elem(&rmesa->radeon.dma.reserved)->bo,
current_offset);
r300EmitVbufPrim(rmesa,

View file

@ -43,6 +43,7 @@ WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
#include "main/teximage.h"
#include "main/texobj.h"
#include "main/enums.h"
#include "main/simple_list.h"
#include "r300_context.h"
#include "r300_state.h"
@ -323,7 +324,7 @@ GLboolean r300ValidateBuffers(GLcontext * ctx)
RADEON_GEM_DOMAIN_GTT | RADEON_GEM_DOMAIN_VRAM, 0);
}
ret = radeon_cs_space_check_with_bo(rmesa->radeon.cmdbuf.cs, rmesa->radeon.dma.current, RADEON_GEM_DOMAIN_GTT, 0);
ret = radeon_cs_space_check_with_bo(rmesa->radeon.cmdbuf.cs, first_elem(&rmesa->radeon.dma.reserved)->bo, RADEON_GEM_DOMAIN_GTT, 0);
if (ret)
return GL_FALSE;
return GL_TRUE;

View file

@ -61,22 +61,6 @@ GLboolean r700SendSQConfig(context_t *context);
#include "main/mm.h"
/* From http://gcc. gnu.org/onlinedocs/gcc-3.2.3/gcc/Variadic-Macros.html .
I suppose we could inline this and use macro to fetch out __LINE__ and stuff in case we run into trouble
with other compilers ... GLUE!
*/
#define WARN_ONCE(a, ...) { \
static int warn##__LINE__=1; \
if(warn##__LINE__){ \
fprintf(stderr, "*********************************WARN_ONCE*********************************\n"); \
fprintf(stderr, "File %s function %s line %d\n", \
__FILE__, __FUNCTION__, __LINE__); \
fprintf(stderr, a, ## __VA_ARGS__);\
fprintf(stderr, "***************************************************************************\n"); \
warn##__LINE__=0;\
} \
}
/************ DMA BUFFERS **************/
/* The blit width for texture uploads

View file

@ -43,6 +43,7 @@ WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
#include "main/teximage.h"
#include "main/texobj.h"
#include "main/enums.h"
#include "main/simple_list.h"
#include "r600_context.h"
#include "r700_state.h"
@ -685,7 +686,7 @@ GLboolean r600ValidateBuffers(GLcontext * ctx)
RADEON_GEM_DOMAIN_GTT | RADEON_GEM_DOMAIN_VRAM, 0);
}
ret = radeon_cs_space_check_with_bo(rmesa->radeon.cmdbuf.cs, rmesa->radeon.dma.current, RADEON_GEM_DOMAIN_GTT, 0);
ret = radeon_cs_space_check_with_bo(rmesa->radeon.cmdbuf.cs, first_elem(&rmesa->radeon.dma.reserved)->bo, RADEON_GEM_DOMAIN_GTT, 0);
if (ret)
return GL_FALSE;
return GL_TRUE;

View file

@ -31,6 +31,7 @@
#include "main/imports.h"
#include "main/macros.h"
#include "main/context.h"
#include "main/simple_list.h"
#include "swrast/swrast.h"
#include "radeon_common.h"
@ -52,7 +53,7 @@ static void r700Flush(GLcontext *ctx)
we have no DMA buffer allocated.
then no point flushing anything at all.
*/
if (!radeon->dma.flush && !radeon->cmdbuf.cs->cdw && !radeon->dma.current)
if (!radeon->dma.flush && !radeon->cmdbuf.cs->cdw && is_empty_list(&radeon->dma.reserved))
return;
if (radeon->dma.flush)

View file

@ -1043,7 +1043,7 @@ void radeonFlush(GLcontext *ctx)
we have no DMA buffer allocated.
then no point flushing anything at all.
*/
if (!radeon->dma.flush && !radeon->cmdbuf.cs->cdw && !radeon->dma.current)
if (!radeon->dma.flush && !radeon->cmdbuf.cs->cdw && is_empty_list(&radeon->dma.reserved))
return;
if (radeon->dma.flush)
@ -1152,7 +1152,7 @@ int rcommonFlushCmdBuf(radeonContextPtr rmesa, const char *caller)
{
int ret;
radeonReleaseDmaRegion(rmesa);
radeonReleaseDmaRegions(rmesa);
LOCK_HARDWARE(rmesa);
ret = rcommonFlushCmdBufLocked(rmesa, caller);

View file

@ -264,6 +264,7 @@ GLboolean radeonInitContext(radeonContextPtr radeon,
}
make_empty_list(&radeon->query.not_flushed_head);
radeon_init_dma(radeon);
return GL_TRUE;
}
@ -309,10 +310,11 @@ void radeonDestroyContext(__DRIcontextPrivate *driContextPriv )
assert(radeon);
if (radeon) {
if (radeon->dma.current) {
if (!is_empty_list(&radeon->dma.reserved)) {
rcommonFlushCmdBuf( radeon, __FUNCTION__ );
}
radeonFreeDmaRegions(radeon);
radeonReleaseArrays(radeon->glCtx, ~0);
meta_destroy_metaops(&radeon->meta);
if (radeon->vtbl.free_context)

View file

@ -18,6 +18,22 @@ struct radeon_context;
#include "radeon_bocs_wrapper.h"
/* From http://gcc. gnu.org/onlinedocs/gcc-3.2.3/gcc/Variadic-Macros.html .
I suppose we could inline this and use macro to fetch out __LINE__ and stuff in case we run into trouble
with other compilers ... GLUE!
*/
#define WARN_ONCE(a, ...) { \
static int warn##__LINE__=1; \
if(warn##__LINE__){ \
fprintf(stderr, "*********************************WARN_ONCE*********************************\n"); \
fprintf(stderr, "File %s function %s line %d\n", \
__FILE__, __FUNCTION__, __LINE__); \
fprintf(stderr, a, ## __VA_ARGS__);\
fprintf(stderr, "***************************************************************************\n"); \
warn##__LINE__=0;\
} \
}
/* This union is used to avoid warnings/miscompilation
with float to uint32_t casts due to strict-aliasing */
typedef union { GLfloat f; uint32_t ui32; } float_ui32_type;
@ -281,12 +297,22 @@ struct radeon_aos {
int count; /** Number of vertices */
};
#define DMA_BO_FREE_TIME 100
struct radeon_dma_bo {
struct radeon_dma_bo *next, *prev;
struct radeon_bo *bo;
int expire_counter;
};
struct radeon_dma {
/* Active dma region. Allocations for vertices and retained
* regions come from here. Also used for emitting random vertices,
* these may be flushed by calling flush_current();
*/
struct radeon_bo *current; /** Buffer that DMA memory is allocated from */
struct radeon_dma_bo free;
struct radeon_dma_bo wait;
struct radeon_dma_bo reserved;
int current_used; /** Number of bytes allocated and forgotten about */
int current_vertexptr; /** End of active vertex region */
@ -296,12 +322,6 @@ struct radeon_dma {
* performed.
*/
void (*flush) (GLcontext *);
/* Number of "in-flight" DMA buffers, i.e. the number of buffers
* for which a DISCARD command is currently queued in the command buffer
.
*/
GLuint nr_released_bufs;
};
/* radeon_swtcl.c

View file

@ -31,6 +31,7 @@ USE OR OTHER DEALINGS IN THE SOFTWARE.
**************************************************************************/
#include "radeon_common.h"
#include "main/simple_list.h"
#if defined(USE_X86_ASM)
#define COPY_DWORDS( dst, src, nr ) \
@ -161,9 +162,15 @@ void rcommon_emit_vector(GLcontext * ctx, struct radeon_aos *aos,
}
}
void radeon_init_dma(radeonContextPtr rmesa)
{
make_empty_list(&rmesa->dma.free);
make_empty_list(&rmesa->dma.wait);
make_empty_list(&rmesa->dma.reserved);
}
void radeonRefillCurrentDmaRegion(radeonContextPtr rmesa, int size)
{
size = MAX2(size, MAX_DMA_BUF_SZ);
if (RADEON_DEBUG & (DEBUG_IOCTL | DEBUG_DMA))
@ -173,43 +180,41 @@ void radeonRefillCurrentDmaRegion(radeonContextPtr rmesa, int size)
rmesa->dma.flush(rmesa->glCtx);
}
if (rmesa->dma.nr_released_bufs > 4) {
rcommonFlushCmdBuf(rmesa, __FUNCTION__);
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;
}
if (is_empty_list(&rmesa->dma.free)) {
struct radeon_dma_bo *dma_bo = CALLOC(sizeof(struct radeon_dma_bo));
assert(dma_bo);
again_alloc:
rmesa->dma.current = radeon_bo_open(rmesa->radeonScreen->bom,
dma_bo->bo = radeon_bo_open(rmesa->radeonScreen->bom,
0, size, 4, RADEON_GEM_DOMAIN_GTT,
0);
if (!rmesa->dma.current) {
rcommonFlushCmdBuf(rmesa, __FUNCTION__);
rmesa->dma.nr_released_bufs = 0;
goto again_alloc;
if (!dma_bo->bo) {
rcommonFlushCmdBuf(rmesa, __FUNCTION__);
goto again_alloc;
}
insert_at_head(&rmesa->dma.reserved, dma_bo);
} else {
struct radeon_dma_bo *dma_bo = last_elem(&rmesa->dma.free);
assert(dma_bo->bo->cref == 1);
remove_from_list(dma_bo);
insert_at_head(&rmesa->dma.reserved, dma_bo);
}
rmesa->dma.current_used = 0;
rmesa->dma.current_vertexptr = 0;
if (radeon_cs_space_check_with_bo(rmesa->cmdbuf.cs,
rmesa->dma.current,
first_elem(&rmesa->dma.reserved)->bo,
RADEON_GEM_DOMAIN_GTT, 0))
fprintf(stderr,"failure to revalidate BOs - badness\n");
if (!rmesa->dma.current) {
if (is_empty_list(&rmesa->dma.reserved)) {
/* Cmd buff have been flushed in radeon_revalidate_bos */
rmesa->dma.nr_released_bufs = 0;
goto again_alloc;
}
radeon_bo_map(rmesa->dma.current, 1);
radeon_bo_map(first_elem(&rmesa->dma.reserved)->bo, 1);
}
/* Allocates a region from rmesa->dma.current. If there isn't enough
@ -230,30 +235,87 @@ void radeonAllocDmaRegion(radeonContextPtr rmesa,
alignment--;
rmesa->dma.current_used = (rmesa->dma.current_used + alignment) & ~alignment;
if (!rmesa->dma.current || rmesa->dma.current_used + bytes > rmesa->dma.current->size)
if (is_empty_list(&rmesa->dma.reserved)
|| rmesa->dma.current_used + bytes > first_elem(&rmesa->dma.reserved)->bo->size)
radeonRefillCurrentDmaRegion(rmesa, (bytes + 15) & ~15);
*poffset = rmesa->dma.current_used;
*pbo = rmesa->dma.current;
*pbo = first_elem(&rmesa->dma.reserved)->bo;
radeon_bo_ref(*pbo);
/* Always align to at least 16 bytes */
rmesa->dma.current_used = (rmesa->dma.current_used + bytes + 15) & ~15;
rmesa->dma.current_vertexptr = rmesa->dma.current_used;
assert(rmesa->dma.current_used <= rmesa->dma.current->size);
assert(rmesa->dma.current_used <= first_elem(&rmesa->dma.reserved)->bo->size);
}
void radeonReleaseDmaRegion(radeonContextPtr rmesa)
void radeonFreeDmaRegions(radeonContextPtr rmesa)
{
struct radeon_dma_bo *dma_bo;
struct radeon_dma_bo *temp;
if (RADEON_DEBUG & DEBUG_IOCTL)
fprintf(stderr, "%s %p\n", __FUNCTION__, rmesa->dma.current);
if (rmesa->dma.current) {
rmesa->dma.nr_released_bufs++;
radeon_bo_unmap(rmesa->dma.current);
radeon_bo_unref(rmesa->dma.current);
fprintf(stderr, "%s\n", __FUNCTION__);
foreach_s(dma_bo, temp, &rmesa->dma.free) {
remove_from_list(dma_bo);
radeon_bo_unref(dma_bo->bo);
FREE(dma_bo);
}
rmesa->dma.current = NULL;
foreach_s(dma_bo, temp, &rmesa->dma.reserved) {
remove_from_list(dma_bo);
radeon_bo_unmap(dma_bo->bo);
radeon_bo_unref(dma_bo->bo);
FREE(dma_bo);
}
}
void radeonReleaseDmaRegions(radeonContextPtr rmesa)
{
struct radeon_dma_bo *dma_bo;
struct radeon_dma_bo *temp;
const int expire_at = ++rmesa->dma.free.expire_counter + DMA_BO_FREE_TIME;
const int time = rmesa->dma.free.expire_counter;
if (RADEON_DEBUG & DEBUG_IOCTL)
fprintf(stderr, "%s\n", __FUNCTION__);
/* move waiting bos to free list.
wait list provides gpu time to handle data before reuse */
foreach_s(dma_bo, temp, &rmesa->dma.wait) {
if (dma_bo->expire_counter == time) {
WARN_ONCE("Leaking dma buffer object!\n");
radeon_bo_unref(dma_bo->bo);
remove_from_list(dma_bo);
FREE(dma_bo);
continue;
}
if (dma_bo->bo->cref > 1)
continue;
remove_from_list(dma_bo);
dma_bo->expire_counter = expire_at;
insert_at_tail(&rmesa->dma.free, dma_bo);
}
/* unmap the last dma region */
if (!is_empty_list(&rmesa->dma.reserved))
radeon_bo_unmap(first_elem(&rmesa->dma.reserved)->bo);
/* move reserved to wait list */
foreach_s(dma_bo, temp, &rmesa->dma.reserved) {
remove_from_list(dma_bo);
dma_bo->expire_counter = expire_at;
insert_at_tail(&rmesa->dma.wait, dma_bo);
}
/* free bos that have been unused for some time */
foreach_s(dma_bo, temp, &rmesa->dma.free) {
if (dma_bo->expire_counter != time)
break;
remove_from_list(dma_bo);
radeon_bo_unref(dma_bo->bo);
FREE(dma_bo);
}
}
@ -266,10 +328,10 @@ void rcommon_flush_last_swtcl_prim( GLcontext *ctx )
if (RADEON_DEBUG & DEBUG_IOCTL)
fprintf(stderr, "%s %p\n", __FUNCTION__, dma->current);
fprintf(stderr, "%s\n", __FUNCTION__);
dma->flush = NULL;
if (dma->current) {
if (!is_empty_list(&dma->reserved)) {
GLuint current_offset = dma->current_used;
assert (dma->current_used +
@ -292,7 +354,10 @@ rcommonAllocDmaLowVerts( radeonContextPtr rmesa, int nverts, int vsize )
GLuint bytes = vsize * nverts;
void *head;
restart:
if (!rmesa->dma.current || rmesa->dma.current_vertexptr + bytes > rmesa->dma.current->size) {
if (RADEON_DEBUG & DEBUG_IOCTL)
fprintf(stderr, "%s\n", __FUNCTION__);
if (is_empty_list(&rmesa->dma.reserved)
|| rmesa->dma.current_vertexptr + bytes > first_elem(&rmesa->dma.reserved)->bo->size) {
radeonRefillCurrentDmaRegion(rmesa, bytes);
}
@ -302,7 +367,7 @@ restart:
rmesa->hw.max_state_size + (20*sizeof(int)),
__FUNCTION__);
/* if cmdbuf flushed DMA restart */
if (!rmesa->dma.current)
if (is_empty_list(&rmesa->dma.reserved))
goto restart;
rmesa->glCtx->Driver.NeedFlush |= FLUSH_STORED_VERTICES;
rmesa->dma.flush = rcommon_flush_last_swtcl_prim;
@ -314,7 +379,7 @@ restart:
rmesa->swtcl.numverts * rmesa->swtcl.vertex_size * 4 ==
rmesa->dma.current_vertexptr );
head = (rmesa->dma.current->ptr + rmesa->dma.current_vertexptr);
head = (first_elem(&rmesa->dma.reserved)->bo->ptr + rmesa->dma.current_vertexptr);
rmesa->dma.current_vertexptr += bytes;
rmesa->swtcl.numverts += nverts;
return head;
@ -324,18 +389,17 @@ void radeonReleaseArrays( GLcontext *ctx, GLuint newinputs )
{
radeonContextPtr radeon = RADEON_CONTEXT( ctx );
int i;
if (RADEON_DEBUG & DEBUG_IOCTL)
fprintf(stderr, "%s\n", __FUNCTION__);
if (radeon->dma.flush) {
radeon->dma.flush(radeon->glCtx);
}
if (radeon->tcl.elt_dma_bo) {
radeon_bo_unref(radeon->tcl.elt_dma_bo);
radeon->tcl.elt_dma_bo = NULL;
}
for (i = 0; i < radeon->tcl.aos_count; i++) {
if (radeon->tcl.aos[i].bo) {
radeon_bo_unref(radeon->tcl.aos[i].bo);
radeon->tcl.aos[i].bo = NULL;
}
}
}

View file

@ -42,13 +42,15 @@ void rcommon_emit_vector(GLcontext * ctx, struct radeon_aos *aos,
const GLvoid * data, int size, int stride, int count);
void radeonRefillCurrentDmaRegion(radeonContextPtr rmesa, int size);
void radeon_init_dma(radeonContextPtr rmesa);
void radeonAllocDmaRegion(radeonContextPtr rmesa,
struct radeon_bo **pbo, int *poffset,
int bytes, int alignment);
void radeonReleaseDmaRegion(radeonContextPtr rmesa);
void radeonReleaseDmaRegions(radeonContextPtr rmesa);
void rcommon_flush_last_swtcl_prim(GLcontext *ctx);
void *rcommonAllocDmaLowVerts(radeonContextPtr rmesa, int nverts, int vsize);
void radeonFreeDmaRegions(radeonContextPtr rmesa);
void radeonReleaseArrays( GLcontext *ctx, GLuint newinputs );
#endif

View file

@ -40,6 +40,7 @@ WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
#include "main/state.h"
#include "main/context.h"
#include "main/framebuffer.h"
#include "main/simple_list.h"
#include "vbo/vbo.h"
#include "tnl/tnl.h"
@ -2099,7 +2100,7 @@ static GLboolean r100ValidateBuffers(GLcontext *ctx)
RADEON_GEM_DOMAIN_GTT | RADEON_GEM_DOMAIN_VRAM, 0);
}
ret = radeon_cs_space_check_with_bo(rmesa->radeon.cmdbuf.cs, rmesa->radeon.dma.current, RADEON_GEM_DOMAIN_GTT, 0);
ret = radeon_cs_space_check_with_bo(rmesa->radeon.cmdbuf.cs, first_elem(&rmesa->radeon.dma.reserved)->bo, RADEON_GEM_DOMAIN_GTT, 0);
if (ret)
return GL_FALSE;
return GL_TRUE;

View file

@ -38,6 +38,7 @@ WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
#include "main/enums.h"
#include "main/imports.h"
#include "main/macros.h"
#include "main/simple_list.h"
#include "swrast_setup/swrast_setup.h"
#include "math/m_translate.h"
@ -291,7 +292,7 @@ void r100_swtcl_flush(GLcontext *ctx, uint32_t current_offset)
radeonEmitState(&rmesa->radeon);
radeonEmitVertexAOS( rmesa,
rmesa->radeon.swtcl.vertex_size,
rmesa->radeon.dma.current,
first_elem(&rmesa->radeon.dma.reserved)->bo,
current_offset);