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context: libdrm wrappers

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This wraps libdrm functionality to exec with contexts. This patch
shouldn't be applied until libdrm for contexts is updated.

Signed-off-by: Ben Widawsky <ben@bwidawsk.net>
This commit is contained in:
Ben Widawsky 2012-01-15 14:52:33 -08:00
parent c157e9485e
commit a635a5ac3b
2 changed files with 38 additions and 4 deletions
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40
lib/intel_batchbuffer.c
View File

@ -75,13 +75,13 @@ intel_batchbuffer_free(struct intel_batchbuffer *batch)
#define CMD_POLY_STIPPLE_OFFSET 0x7906
void
intel_batchbuffer_flush_on_ring(struct intel_batchbuffer *batch, int ring)
static unsigned int
flush_on_ring_common(struct intel_batchbuffer *batch, int ring)
{
unsigned int used = batch->ptr - batch->buffer;
if (used == 0)
return;
return 0;
if (IS_GEN5(batch->devid)) {
/* emit gen5 w/a without batch space checks - we reserve that
@ -100,7 +100,17 @@ intel_batchbuffer_flush_on_ring(struct intel_batchbuffer *batch, int ring)
/* Mark the end of the buffer. */
*(uint32_t *)(batch->ptr) = MI_BATCH_BUFFER_END; /* noop */
batch->ptr += 4;
used = batch->ptr - batch->buffer;
return batch->ptr - batch->buffer;
}
void
intel_batchbuffer_flush_on_ring(struct intel_batchbuffer *batch, int ring)
{
int ret;
unsigned int used = flush_on_ring_common(batch, ring);
if (used == 0)
return;
do_or_die(drm_intel_bo_subdata(batch->bo, 0, used, batch->buffer));
@ -111,6 +121,28 @@ intel_batchbuffer_flush_on_ring(struct intel_batchbuffer *batch, int ring)
intel_batchbuffer_reset(batch);
}
void
intel_batchbuffer_flush_with_context(struct intel_batchbuffer *batch,
drm_intel_context *context)
{
int ret;
unsigned int used = flush_on_ring_common(batch, I915_EXEC_RENDER);
if (used == 0)
return;
ret = drm_intel_bo_subdata(batch->bo, 0, used, batch->buffer);
assert(ret == 0);
batch->ptr = NULL;
ret = drm_intel_gem_bo_context_exec(batch->bo, context, used,
I915_EXEC_RENDER);
assert(ret == 0);
intel_batchbuffer_reset(batch);
}
void
intel_batchbuffer_flush(struct intel_batchbuffer *batch)
{

2
lib/intel_batchbuffer.h
View File

@ -25,6 +25,8 @@ void intel_batchbuffer_free(struct intel_batchbuffer *batch);
void intel_batchbuffer_flush(struct intel_batchbuffer *batch);
void intel_batchbuffer_flush_on_ring(struct intel_batchbuffer *batch, int ring);
void intel_batchbuffer_flush_with_context(struct intel_batchbuffer *batch,
drm_intel_context *context);
void intel_batchbuffer_reset(struct intel_batchbuffer *batch);