Merge branch 'master' of git+ssh://znh@git.freedesktop.org/git/mesa/mesa into 965-glsl

1 files changed, 202 insertions, 187 deletions

diff --git a/src/mesa/drivers/dri/r300/r300_ioctl.c b/src/mesa/drivers/dri/r300/r300_ioctl.c
index 11e2d42e49..90f5027c9a 100644
--- a/src/mesa/drivers/dri/r300/r300_ioctl.c
+++ b/src/mesa/drivers/dri/r300/r300_ioctl.c
@@ -29,10 +29,12 @@ WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 
 **************************************************************************/
 
-/*
- * Authors:
- *   Keith Whitwell <keith@tungstengraphics.com>
- *   Nicolai Haehnle <prefect_@gmx.net>
+/**
+ * \file
+ *
+ * \author Keith Whitwell <keith@tungstengraphics.com>
+ *
+ * \author Nicolai Haehnle <prefect_@gmx.net>
  */
 
 #include <sched.h>
@@ -61,14 +63,14 @@ WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 
 static void r300ClearBuffer(r300ContextPtr r300, int flags, int buffer)
 {
-	GLcontext* ctx = r300->radeon.glCtx;
+	GLcontext *ctx = r300->radeon.glCtx;
 	__DRIdrawablePrivate *dPriv = r300->radeon.dri.drawable;
 	GLuint cboffset, cbpitch;
-	drm_r300_cmd_header_t* cmd2;
+	drm_r300_cmd_header_t *cmd2;
 	int cmd_reserved = 0;
 	int cmd_written = 0;
 	drm_radeon_cmd_header_t *cmd = NULL;
-	r300ContextPtr rmesa=r300;
+	r300ContextPtr rmesa = r300;
 
 	if (RADEON_DEBUG & DEBUG_IOCTL)
 		fprintf(stderr, "%s: %s buffer (%i,%i %ix%i)\n",
@@ -87,69 +89,78 @@ static void r300ClearBuffer(r300ContextPtr r300, int flags, int buffer)
 
 	cp_wait(r300, R300_WAIT_3D | R300_WAIT_3D_CLEAN);
 	end_3d(rmesa);
-	
+
 	R300_STATECHANGE(r300, cb);
 	reg_start(R300_RB3D_COLOROFFSET0, 0);
 	e32(cboffset);
-	
+
 	if (r300->radeon.radeonScreen->cpp == 4)
 		cbpitch |= R300_COLOR_FORMAT_ARGB8888;
 	else
 		cbpitch |= R300_COLOR_FORMAT_RGB565;
-	
+
 	if (r300->radeon.sarea->tiling_enabled)
 		cbpitch |= R300_COLOR_TILE_ENABLE;
-	
+
 	reg_start(R300_RB3D_COLORPITCH0, 0);
 	e32(cbpitch);
 
 	R300_STATECHANGE(r300, cmk);
 	reg_start(R300_RB3D_COLORMASK, 0);
-	
+
 	if (flags & CLEARBUFFER_COLOR) {
 		e32((ctx->Color.ColorMask[BCOMP] ? R300_COLORMASK0_B : 0) |
-			(ctx->Color.ColorMask[GCOMP] ? R300_COLORMASK0_G : 0) |
-			(ctx->Color.ColorMask[RCOMP] ? R300_COLORMASK0_R : 0) |
-			(ctx->Color.ColorMask[ACOMP] ? R300_COLORMASK0_A : 0));
+		    (ctx->Color.ColorMask[GCOMP] ? R300_COLORMASK0_G : 0) |
+		    (ctx->Color.ColorMask[RCOMP] ? R300_COLORMASK0_R : 0) |
+		    (ctx->Color.ColorMask[ACOMP] ? R300_COLORMASK0_A : 0));
 	} else {
-		e32(0);
+		e32(0x0);
 	}
-	
+
 	R300_STATECHANGE(r300, zs);
 	reg_start(R300_RB3D_ZSTENCIL_CNTL_0, 2);
-	
+
 	{
-	uint32_t t1, t2;
-	
-	t1 = 0x0;
-	t2 = 0x0;
-	
-	if (flags & CLEARBUFFER_DEPTH) {
-		t1 |= R300_RB3D_Z_WRITE_ONLY;
-		t2 |= (R300_ZS_ALWAYS << R300_RB3D_ZS1_DEPTH_FUNC_SHIFT);
-	} else {
-		t1 |= R300_RB3D_Z_DISABLED_1; // disable
-	}
-	
-	if (flags & CLEARBUFFER_STENCIL) {
-		t1 |= R300_RB3D_STENCIL_ENABLE;
-		t2 |= 
-		    (R300_ZS_ALWAYS<<R300_RB3D_ZS1_FRONT_FUNC_SHIFT) | 
-		    (R300_ZS_REPLACE<<R300_RB3D_ZS1_FRONT_FAIL_OP_SHIFT) |
-		    (R300_ZS_REPLACE<<R300_RB3D_ZS1_FRONT_ZPASS_OP_SHIFT) |
-		    (R300_ZS_REPLACE<<R300_RB3D_ZS1_FRONT_ZFAIL_OP_SHIFT) |
-		    (R300_ZS_ALWAYS<<R300_RB3D_ZS1_BACK_FUNC_SHIFT) |
-		    (R300_ZS_REPLACE<<R300_RB3D_ZS1_BACK_FAIL_OP_SHIFT) |
-		    (R300_ZS_REPLACE<<R300_RB3D_ZS1_BACK_ZPASS_OP_SHIFT) |
-		    (R300_ZS_REPLACE<<R300_RB3D_ZS1_BACK_ZFAIL_OP_SHIFT) ;
-	}
-	
-	e32(t1);
-	e32(t2);
-	e32(r300->state.stencil.clear);
+		uint32_t t1, t2;
+
+		t1 = 0x0;
+		t2 = 0x0;
+
+		if (flags & CLEARBUFFER_DEPTH) {
+			t1 |= R300_RB3D_Z_WRITE_ONLY;
+			t2 |=
+			    (R300_ZS_ALWAYS << R300_RB3D_ZS1_DEPTH_FUNC_SHIFT);
+		} else {
+			t1 |= R300_RB3D_Z_DISABLED_1;	// disable
+		}
+
+		if (flags & CLEARBUFFER_STENCIL) {
+			t1 |= R300_RB3D_STENCIL_ENABLE;
+			t2 |=
+			    (R300_ZS_ALWAYS <<
+			     R300_RB3D_ZS1_FRONT_FUNC_SHIFT) |
+			    (R300_ZS_REPLACE <<
+			     R300_RB3D_ZS1_FRONT_FAIL_OP_SHIFT) |
+			    (R300_ZS_REPLACE <<
+			     R300_RB3D_ZS1_FRONT_ZPASS_OP_SHIFT) |
+			    (R300_ZS_REPLACE <<
+			     R300_RB3D_ZS1_FRONT_ZFAIL_OP_SHIFT) |
+			    (R300_ZS_ALWAYS <<
+			     R300_RB3D_ZS1_BACK_FUNC_SHIFT) |
+			    (R300_ZS_REPLACE <<
+			     R300_RB3D_ZS1_BACK_FAIL_OP_SHIFT) |
+			    (R300_ZS_REPLACE <<
+			     R300_RB3D_ZS1_BACK_ZPASS_OP_SHIFT) |
+			    (R300_ZS_REPLACE <<
+			     R300_RB3D_ZS1_BACK_ZFAIL_OP_SHIFT);
+		}
+
+		e32(t1);
+		e32(t2);
+		e32(r300->state.stencil.clear);
 	}
-	
-	cmd2 = (drm_r300_cmd_header_t*)r300AllocCmdBuf(r300, 9, __FUNCTION__);
+
+	cmd2 = (drm_r300_cmd_header_t *) r300AllocCmdBuf(r300, 9, __FUNCTION__);
 	cmd2[0].packet3.cmd_type = R300_CMD_PACKET3;
 	cmd2[0].packet3.packet = R300_CMD_PACKET3_CLEAR;
 	cmd2[1].u = r300PackFloat32(dPriv->w / 2.0);
@@ -161,54 +172,76 @@ static void r300ClearBuffer(r300ContextPtr r300, int flags, int buffer)
 	cmd2[7].u = r300PackFloat32(ctx->Color.ClearColor[2]);
 	cmd2[8].u = r300PackFloat32(ctx->Color.ClearColor[3]);
 
-	reg_start(R300_RB3D_DSTCACHE_CTLSTAT,0);
-	e32(R300_RB3D_DSTCACHE_UNKNOWN_0A);
-	  
-
-	reg_start(R300_RB3D_ZCACHE_CTLSTAT,0);
-	e32(R300_RB3D_ZCACHE_UNKNOWN_03);
+	r300EmitCacheFlush(rmesa);
 	cp_wait(rmesa, R300_WAIT_3D | R300_WAIT_3D_CLEAN);
 }
 
 static void r300EmitClearState(GLcontext * ctx)
 {
 	r300ContextPtr r300 = R300_CONTEXT(ctx);
-	r300ContextPtr rmesa=r300;
+	r300ContextPtr rmesa = r300;
 	__DRIdrawablePrivate *dPriv = r300->radeon.dri.drawable;
 	int i;
 	int cmd_reserved = 0;
 	int cmd_written = 0;
 	drm_radeon_cmd_header_t *cmd = NULL;
-	
-	
+	int has_tcl = 1;
+
+	if (!(r300->radeon.radeonScreen->chip_flags & RADEON_CHIPSET_TCL))
+		has_tcl = 0;
+
+	/* FIXME: the values written to R300_VAP_INPUT_ROUTE_0_0 and
+	 * R300_VAP_INPUT_ROUTE_0_1 are in fact known, however, the values are
+	 * quite complex; see the functions in r300_emit.c.
+	 *
+	 * I believe it would be a good idea to extend the functions in
+	 * r300_emit.c so that they can be used to setup the default values for
+	 * these registers, as well as the actual values used for rendering.
+	 */
 	R300_STATECHANGE(r300, vir[0]);
 	reg_start(R300_VAP_INPUT_ROUTE_0_0, 0);
-	e32(0x21030003);
-	
+	if (!has_tcl)
+		e32(0x22030003);
+	else
+		e32(0x21030003);
+
 	/* disable fog */
 	R300_STATECHANGE(r300, fogs);
 	reg_start(R300_RE_FOG_STATE, 0);
 	e32(0x0);
-	
+
 	R300_STATECHANGE(r300, vir[1]);
 	reg_start(R300_VAP_INPUT_ROUTE_1_0, 0);
 	e32(0xF688F688);
 
+	/* R300_VAP_INPUT_CNTL_0, R300_VAP_INPUT_CNTL_1 */
 	R300_STATECHANGE(r300, vic);
 	reg_start(R300_VAP_INPUT_CNTL_0, 1);
-	e32(0x00000001);
-	e32(0x00000405);
-	
+	e32(R300_INPUT_CNTL_0_COLOR);
+	e32(R300_INPUT_CNTL_POS | R300_INPUT_CNTL_COLOR | R300_INPUT_CNTL_TC0);
+
+	R300_STATECHANGE(r300, vte);
+	/* comes from fglrx startup of clear */
+	reg_start(R300_SE_VTE_CNTL, 1);
+	e32(R300_VTX_W0_FMT | R300_VPORT_X_SCALE_ENA |
+	    R300_VPORT_X_OFFSET_ENA | R300_VPORT_Y_SCALE_ENA |
+	    R300_VPORT_Y_OFFSET_ENA | R300_VPORT_Z_SCALE_ENA |
+	    R300_VPORT_Z_OFFSET_ENA);
+	e32(0x8);
+
+	reg_start(0x21dc, 0);
+	e32(0xaaaaaaaa);
+
 	R300_STATECHANGE(r300, vof);
 	reg_start(R300_VAP_OUTPUT_VTX_FMT_0, 1);
-	e32(R300_VAP_OUTPUT_VTX_FMT_0__POS_PRESENT | R300_VAP_OUTPUT_VTX_FMT_0__COLOR_PRESENT);
-	e32(0); /* no textures */
-		
-	
+	e32(R300_VAP_OUTPUT_VTX_FMT_0__POS_PRESENT |
+	    R300_VAP_OUTPUT_VTX_FMT_0__COLOR_PRESENT);
+	e32(0x0);		/* no textures */
+
 	R300_STATECHANGE(r300, txe);
 	reg_start(R300_TX_ENABLE, 0);
-	e32(0);
-	
+	e32(0x0);
+
 	R300_STATECHANGE(r300, vpt);
 	reg_start(R300_SE_VPORT_XSCALE, 5);
 	efloat(1.0);
@@ -217,28 +250,28 @@ static void r300EmitClearState(GLcontext * ctx)
 	efloat(dPriv->y);
 	efloat(1.0);
 	efloat(0.0);
-	
+
 	R300_STATECHANGE(r300, at);
 	reg_start(R300_PP_ALPHA_TEST, 0);
-	e32(0);
-	
+	e32(0x0);
+
 	R300_STATECHANGE(r300, bld);
 	reg_start(R300_RB3D_CBLEND, 1);
-	e32(0);
-	e32(0);
-	
+	e32(0x0);
+	e32(0x0);
+
 	R300_STATECHANGE(r300, unk221C);
 	reg_start(R300_VAP_UNKNOWN_221C, 0);
 	e32(R300_221C_CLEAR);
-	
+
 	R300_STATECHANGE(r300, ps);
 	reg_start(R300_RE_POINTSIZE, 0);
 	e32(((dPriv->w * 6) << R300_POINTSIZE_X_SHIFT) |
-		((dPriv->h * 6) << R300_POINTSIZE_Y_SHIFT));
-	
+	    ((dPriv->h * 6) << R300_POINTSIZE_Y_SHIFT));
+
 	R300_STATECHANGE(r300, ri);
 	reg_start(R300_RS_INTERP_0, 8);
-	for(i = 0; i < 8; ++i){
+	for (i = 0; i < 8; ++i) {
 		e32(R300_RS_INTERP_USED);
 	}
 
@@ -246,62 +279,61 @@ static void r300EmitClearState(GLcontext * ctx)
 	/* The second constant is needed to get glxgears display anything .. */
 	reg_start(R300_RS_CNTL_0, 1);
 	e32((1 << R300_RS_CNTL_CI_CNT_SHIFT) | R300_RS_CNTL_0_UNKNOWN_18);
-	e32(0);
-	
+	e32(0x0);
+
 	R300_STATECHANGE(r300, rr);
 	reg_start(R300_RS_ROUTE_0, 0);
-	e32(0x00004000);
-	
+	e32(R300_RS_ROUTE_0_COLOR);
+
 	R300_STATECHANGE(r300, fp);
 	reg_start(R300_PFS_CNTL_0, 2);
-	e32(0);
-	e32(0);
-	e32(0);
+	e32(0x0);
+	e32(0x0);
+	e32(0x0);
 	reg_start(R300_PFS_NODE_0, 3);
-	e32(0);
-	e32(0);
-	e32(0);
+	e32(0x0);
+	e32(0x0);
+	e32(0x0);
 	e32(R300_PFS_NODE_OUTPUT_COLOR);
-	
+
 	R300_STATECHANGE(r300, fpi[0]);
 	R300_STATECHANGE(r300, fpi[1]);
 	R300_STATECHANGE(r300, fpi[2]);
 	R300_STATECHANGE(r300, fpi[3]);
-	
+
 	reg_start(R300_PFS_INSTR0_0, 0);
 	e32(FP_INSTRC(MAD, FP_ARGC(SRC0C_XYZ), FP_ARGC(ONE), FP_ARGC(ZERO)));
-	
+
 	reg_start(R300_PFS_INSTR1_0, 0);
-	e32(FP_SELC(0,NO,XYZ,FP_TMP(0),0,0));
-	
+	e32(FP_SELC(0, NO, XYZ, FP_TMP(0), 0, 0));
+
 	reg_start(R300_PFS_INSTR2_0, 0);
 	e32(FP_INSTRA(MAD, FP_ARGA(SRC0A), FP_ARGA(ONE), FP_ARGA(ZERO)));
-	
+
 	reg_start(R300_PFS_INSTR3_0, 0);
-	e32(FP_SELA(0,NO,W,FP_TMP(0),0,0));
-	
-	R300_STATECHANGE(r300, pvs);
-	reg_start(R300_VAP_PVS_CNTL_1, 2);
-	e32((0 << R300_PVS_CNTL_1_PROGRAM_START_SHIFT) |
-		(0 << R300_PVS_CNTL_1_POS_END_SHIFT) |
-		(1 << R300_PVS_CNTL_1_PROGRAM_END_SHIFT));
-	e32(0);
-	e32(1 << R300_PVS_CNTL_3_PROGRAM_UNKNOWN_SHIFT);
-	
-	R300_STATECHANGE(r300, vpi);
-	vsf_start_fragment(0x0, 8);
-	e32(VP_OUT(ADD,OUT,0,XYZW));
-	e32(VP_IN(IN,0));
-	e32(VP_ZERO());
-	e32(0);
-	
-	e32(VP_OUT(ADD,OUT,1,XYZW));
-	e32(VP_IN(IN,1));
-	e32(VP_ZERO());
-	e32(0);
-	
-	/*reg_start(0x4500,0);
-	e32(2560-1);*/
+	e32(FP_SELA(0, NO, W, FP_TMP(0), 0, 0));
+
+	if (has_tcl) {
+		R300_STATECHANGE(r300, pvs);
+		reg_start(R300_VAP_PVS_CNTL_1, 2);
+		e32((0 << R300_PVS_CNTL_1_PROGRAM_START_SHIFT) |
+		    (0 << R300_PVS_CNTL_1_POS_END_SHIFT) |
+		    (1 << R300_PVS_CNTL_1_PROGRAM_END_SHIFT));
+		e32(0x0);
+		e32(1 << R300_PVS_CNTL_3_PROGRAM_UNKNOWN_SHIFT);
+
+		R300_STATECHANGE(r300, vpi);
+		vsf_start_fragment(0x0, 8);
+		e32(VP_OUT(ADD, OUT, 0, XYZW));
+		e32(VP_IN(IN, 0));
+		e32(VP_ZERO());
+		e32(0x0);
+
+		e32(VP_OUT(ADD, OUT, 1, XYZW));
+		e32(VP_IN(IN, 1));
+		e32(VP_ZERO());
+		e32(0x0);
+	}
 }
 
 /**
@@ -339,8 +371,8 @@ static void r300Clear(GLcontext * ctx, GLbitfield mask)
 		bits |= CLEARBUFFER_DEPTH;
 		mask &= ~BUFFER_BIT_DEPTH;
 	}
-	
-	if ( (mask & BUFFER_BIT_STENCIL) && r300->state.stencil.hw_stencil) {
+
+	if ((mask & BUFFER_BIT_STENCIL) && r300->state.stencil.hw_stencil) {
 		bits |= CLEARBUFFER_STENCIL;
 		mask &= ~BUFFER_BIT_STENCIL;
 	}
@@ -352,11 +384,11 @@ static void r300Clear(GLcontext * ctx, GLbitfield mask)
 		_swrast_Clear(ctx, mask);
 	}
 
-	swapped = r300->radeon.doPageFlip && (r300->radeon.sarea->pfCurrentPage == 1);
+	swapped = r300->radeon.sarea->pfCurrentPage == 1;
 
 	/* Make sure it fits there. */
-	r300EnsureCmdBufSpace(r300, 421*3, __FUNCTION__);
-	if(flags || bits)
+	r300EnsureCmdBufSpace(r300, 421 * 3, __FUNCTION__);
+	if (flags || bits)
 		r300EmitClearState(ctx);
 
 	if (flags & BUFFER_BIT_FRONT_LEFT) {
@@ -374,26 +406,28 @@ static void r300Clear(GLcontext * ctx, GLbitfield mask)
 
 }
 
-
 void r300Flush(GLcontext * ctx)
 {
-	r300ContextPtr r300 = R300_CONTEXT(ctx);
+	r300ContextPtr rmesa = R300_CONTEXT(ctx);
 
 	if (RADEON_DEBUG & DEBUG_IOCTL)
 		fprintf(stderr, "%s\n", __FUNCTION__);
 
-	if (r300->cmdbuf.count_used > r300->cmdbuf.count_reemit)
-		r300FlushCmdBuf(r300, __FUNCTION__);
+	if (rmesa->dma.flush)
+		rmesa->dma.flush( rmesa );
+
+	if (rmesa->cmdbuf.count_used > rmesa->cmdbuf.count_reemit)
+		r300FlushCmdBuf(rmesa, __FUNCTION__);
 }
 
 #ifdef USER_BUFFERS
-#include "radeon_mm.h"
+#include "r300_mem.h"
 
-static void r300RefillCurrentDmaRegion(r300ContextPtr rmesa, int size)
+void r300RefillCurrentDmaRegion(r300ContextPtr rmesa, int size)
 {
 	struct r300_dma_buffer *dmabuf;
-	size = MAX2(size, RADEON_BUFFER_SIZE*16);
-	
+	size = MAX2(size, RADEON_BUFFER_SIZE * 16);
+
 	if (RADEON_DEBUG & (DEBUG_IOCTL | DEBUG_DMA))
 		fprintf(stderr, "%s\n", __FUNCTION__);
 
@@ -401,42 +435,39 @@ static void r300RefillCurrentDmaRegion(r300ContextPtr rmesa, int size)
 		rmesa->dma.flush(rmesa);
 	}
 
-	if (rmesa->dma.current.buf)
+	if (rmesa->dma.current.buf) {
+#ifdef USER_BUFFERS
+		r300_mem_use(rmesa, rmesa->dma.current.buf->id);
+#endif
 		r300ReleaseDmaRegion(rmesa, &rmesa->dma.current, __FUNCTION__);
-
+	}
 	if (rmesa->dma.nr_released_bufs > 4)
 		r300FlushCmdBuf(rmesa, __FUNCTION__);
-	
+
 	dmabuf = CALLOC_STRUCT(r300_dma_buffer);
-	dmabuf->buf = (void *)1; /* hack */
+	dmabuf->buf = (void *)1;	/* hack */
 	dmabuf->refcount = 1;
 
-	dmabuf->id = radeon_mm_alloc(rmesa, 4, size);
+	dmabuf->id = r300_mem_alloc(rmesa, 4, size);
 	if (dmabuf->id == 0) {
 		LOCK_HARDWARE(&rmesa->radeon);	/* no need to validate */
-		
+
 		r300FlushCmdBufLocked(rmesa, __FUNCTION__);
 		radeonWaitForIdleLocked(&rmesa->radeon);
-		
-		dmabuf->id = radeon_mm_alloc(rmesa, 4, size);
 
-#ifdef HW_VBOS
-		if (dmabuf->id == 0) {
-			/* Just kick all */
-			r300_evict_vbos(rmesa->radeon.glCtx, /*RADEON_BUFFER_SIZE*16*/1<<30);
-			dmabuf->id = radeon_mm_alloc(rmesa, 4, size);
-		}
-#endif
+		dmabuf->id = r300_mem_alloc(rmesa, 4, size);
+
 		UNLOCK_HARDWARE(&rmesa->radeon);
-		
+
 		if (dmabuf->id == 0) {
-			fprintf(stderr, "Error: Could not get dma buffer... exiting\n");
-			exit(-1);
+			fprintf(stderr,
+				"Error: Could not get dma buffer... exiting\n");
+			_mesa_exit(-1);
 		}
 	}
-			
+
 	rmesa->dma.current.buf = dmabuf;
-	rmesa->dma.current.address = radeon_mm_ptr(rmesa, dmabuf->id);
+	rmesa->dma.current.address = r300_mem_ptr(rmesa, dmabuf->id);
 	rmesa->dma.current.end = size;
 	rmesa->dma.current.start = 0;
 	rmesa->dma.current.ptr = 0;
@@ -455,7 +486,7 @@ void r300ReleaseDmaRegion(r300ContextPtr rmesa,
 		rmesa->dma.flush(rmesa);
 
 	if (--region->buf->refcount == 0) {
-		radeon_mm_free(rmesa, region->buf->id);
+		r300_mem_free(rmesa, region->buf->id);
 		FREE(region->buf);
 		rmesa->dma.nr_released_bufs++;
 	}
@@ -485,8 +516,7 @@ void r300AllocDmaRegion(r300ContextPtr rmesa,
 	    (rmesa->dma.current.ptr + alignment) & ~alignment;
 
 	if (rmesa->dma.current.ptr + bytes > rmesa->dma.current.end)
-		r300RefillCurrentDmaRegion(rmesa,
-					   (bytes + 0x7) & ~0x7);
+		r300RefillCurrentDmaRegion(rmesa, (bytes + 0x7) & ~0x7);
 
 	region->start = rmesa->dma.current.start;
 	region->ptr = rmesa->dma.current.start;
@@ -511,7 +541,7 @@ static void r300RefillCurrentDmaRegion(r300ContextPtr rmesa)
 	int size = 0;
 	drmDMAReq dma;
 	int ret;
-	
+
 	if (RADEON_DEBUG & (DEBUG_IOCTL | DEBUG_DMA))
 		fprintf(stderr, "%s\n", __FUNCTION__);
 
@@ -554,8 +584,9 @@ static void r300RefillCurrentDmaRegion(r300ContextPtr rmesa)
 
 		if (ret != 0) {
 			UNLOCK_HARDWARE(&rmesa->radeon);
-			fprintf(stderr, "Error: Could not get dma buffer... exiting\n");
-			exit(-1);
+			fprintf(stderr,
+				"Error: Could not get dma buffer... exiting\n");
+			_mesa_exit(-1);
 		}
 	}
 
@@ -591,15 +622,16 @@ void r300ReleaseDmaRegion(r300ContextPtr rmesa,
 		drm_radeon_cmd_header_t *cmd;
 
 		if (RADEON_DEBUG & (DEBUG_IOCTL | DEBUG_DMA))
-			fprintf(stderr, "%s -- DISCARD BUF %d\n", __FUNCTION__,
-				region->buf->buf->idx);
+			fprintf(stderr, "%s -- DISCARD BUF %d\n",
+				__FUNCTION__, region->buf->buf->idx);
 		cmd =
 		    (drm_radeon_cmd_header_t *) r300AllocCmdBuf(rmesa,
-								sizeof(*cmd) / 4,
+								sizeof
+								(*cmd) / 4,
 								__FUNCTION__);
 		cmd->dma.cmd_type = R300_CMD_DMA_DISCARD;
 		cmd->dma.buf_idx = region->buf->buf->idx;
-		
+
 		FREE(region->buf);
 		rmesa->dma.nr_released_bufs++;
 	}
@@ -647,34 +679,15 @@ void r300AllocDmaRegion(r300ContextPtr rmesa,
 
 #endif
 
-/* Called via glXGetMemoryOffsetMESA() */
-GLuint r300GetMemoryOffsetMESA(__DRInativeDisplay * dpy, int scrn,
-			       const GLvoid * pointer)
-{
-	GET_CURRENT_CONTEXT(ctx);
-	r300ContextPtr rmesa;
-	GLuint card_offset;
-
-	if (!ctx || !(rmesa = R300_CONTEXT(ctx))) {
-		fprintf(stderr, "%s: no context\n", __FUNCTION__);
-		return ~0;
-	}
-
-	if (!r300IsGartMemory(rmesa, pointer, 0))
-		return ~0;
-
-	card_offset = r300GartOffsetFromVirtual(rmesa, pointer);
-
-	return card_offset - rmesa->radeon.radeonScreen->gart_base;
-}
-
 GLboolean r300IsGartMemory(r300ContextPtr rmesa, const GLvoid * pointer,
 			   GLint size)
 {
 	int offset =
-	    (char *)pointer - (char *)rmesa->radeon.radeonScreen->gartTextures.map;
+	    (char *)pointer -
+	    (char *)rmesa->radeon.radeonScreen->gartTextures.map;
 	int valid = (size >= 0 && offset >= 0
-		     && offset + size < rmesa->radeon.radeonScreen->gartTextures.size);
+		     && offset + size <
+		     rmesa->radeon.radeonScreen->gartTextures.size);
 
 	if (RADEON_DEBUG & DEBUG_IOCTL)
 		fprintf(stderr, "r300IsGartMemory( %p ) : %d\n", pointer,
@@ -686,11 +699,13 @@ GLboolean r300IsGartMemory(r300ContextPtr rmesa, const GLvoid * pointer,
 GLuint r300GartOffsetFromVirtual(r300ContextPtr rmesa, const GLvoid * pointer)
 {
 	int offset =
-	    (char *)pointer - (char *)rmesa->radeon.radeonScreen->gartTextures.map;
+	    (char *)pointer -
+	    (char *)rmesa->radeon.radeonScreen->gartTextures.map;
 
 	//fprintf(stderr, "offset=%08x\n", offset);
 
-	if (offset < 0 || offset > rmesa->radeon.radeonScreen->gartTextures.size)
+	if (offset < 0
+	    || offset > rmesa->radeon.radeonScreen->gartTextures.size)
 		return ~0;
 	else
 		return rmesa->radeon.radeonScreen->gart_texture_offset + offset;