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-rw-r--r--src/mesa/drivers/dri/sis/sis_context.c14
-rw-r--r--src/mesa/drivers/dri/sis/sis_screen.c2
-rw-r--r--src/mesa/drivers/dri/sis/sis_tris.c1
3 files changed, 7 insertions, 10 deletions
diff --git a/src/mesa/drivers/dri/sis/sis_context.c b/src/mesa/drivers/dri/sis/sis_context.c
index 0830e5676f..6aa6194408 100644
--- a/src/mesa/drivers/dri/sis/sis_context.c
+++ b/src/mesa/drivers/dri/sis/sis_context.c
@@ -84,27 +84,25 @@ static const char * const card_extensions[] =
void
WaitEngIdle (sisContextPtr smesa)
{
- GLuint cEngineState;
+ GLuint engineState;
do {
- cEngineState = MMIO_READ(REG_CommandQueue);
- } while ((cEngineState & SiS_EngIdle) != SiS_EngIdle);
+ engineState = MMIO_READ(REG_CommandQueue);
+ } while ((engineState & SiS_EngIdle) != SiS_EngIdle);
}
void
Wait2DEngIdle (sisContextPtr smesa)
{
- GLuint cEngineState;
+ GLuint engineState;
do {
- cEngineState = MMIO_READ(REG_CommandQueue);
- } while ((cEngineState & SiS_EngIdle2d) != SiS_EngIdle2d);
+ engineState = MMIO_READ(REG_CommandQueue);
+ } while ((engineState & SiS_EngIdle2d) != SiS_EngIdle2d);
}
/* To be called from mWait3DCmdQueue. Separate function for profiling
* purposes, and speed doesn't matter because we're spinning anyway.
- * This function should use usleeps to release cpu probably, but I have yet
- * to see it get called.
*/
void
WaitingFor3dIdle(sisContextPtr smesa, int wLen)
diff --git a/src/mesa/drivers/dri/sis/sis_screen.c b/src/mesa/drivers/dri/sis/sis_screen.c
index 3171be5002..f1a51039d2 100644
--- a/src/mesa/drivers/dri/sis/sis_screen.c
+++ b/src/mesa/drivers/dri/sis/sis_screen.c
@@ -162,7 +162,7 @@ static void sisCopyBuffer( __DRIdrawablePrivate *dPriv )
ENGPACKET stEngPacket;
while ((*smesa->FrameCountPtr) - MMIO_READ(0x8a2c) > SIS_MAX_FRAME_LENGTH)
- usleep(1);
+ ;
LOCK_HARDWARE();
diff --git a/src/mesa/drivers/dri/sis/sis_tris.c b/src/mesa/drivers/dri/sis/sis_tris.c
index 4877e34650..abe6a3fb07 100644
--- a/src/mesa/drivers/dri/sis/sis_tris.c
+++ b/src/mesa/drivers/dri/sis/sis_tris.c
@@ -870,7 +870,6 @@ sisMakeRoomAGP( sisContextPtr smesa, GLint num )
sisUpdateAGP( smesa );
while (size > AGP_SpaceLeft) {
/* Spin until space is available. */
- usleep(1);
AGP_ReadPtr = (GLfloat *)((long)MMIO_READ(REG_3D_AGPCmBase) -
(long)smesa->AGPCmdBufAddr + (long)smesa->AGPCmdBufBase);
sisUpdateAGP( smesa );