X-Git-Url: https://git.libre-soc.org/?a=blobdiff_plain;f=src%2Fmesa%2Fdrivers%2Fdri%2Fr300%2Fr300_context.c;h=2c2b16aa98dc60d0e25df6516d4be5b5af3657c5;hb=f67bc2e87255298ac22e8ccd98f482cc62d0ec26;hp=6fcf209af66cde2316f7b9762e5d03d818ca1ea3;hpb=ebf2710b2fd21ae9a6604c015ca7a948589f5a8c;p=mesa.git

diff --git a/src/mesa/drivers/dri/r300/r300_context.c b/src/mesa/drivers/dri/r300/r300_context.c
index 6fcf209af66..2c2b16aa98d 100644
--- a/src/mesa/drivers/dri/r300/r300_context.c
+++ b/src/mesa/drivers/dri/r300/r300_context.c
@@ -376,11 +376,21 @@ static void r300InitConstValues(GLcontext *ctx, radeonScreenPtr screen)
 	if (screen->chip_family >= CHIP_FAMILY_RV515) {
 		ctx->Const.FragmentProgram.MaxNativeTemps = R500_PFS_NUM_TEMP_REGS;
 		ctx->Const.FragmentProgram.MaxNativeAttribs = 11;	/* copy i915... */
-		ctx->Const.FragmentProgram.MaxNativeParameters = R500_PFS_NUM_CONST_REGS;
-		ctx->Const.FragmentProgram.MaxNativeAluInstructions = R500_PFS_MAX_INST;
-		ctx->Const.FragmentProgram.MaxNativeTexInstructions = R500_PFS_MAX_INST;
-		ctx->Const.FragmentProgram.MaxNativeInstructions = R500_PFS_MAX_INST;
-		ctx->Const.FragmentProgram.MaxNativeTexIndirections = R500_PFS_MAX_INST;
+
+		/* The hardware limits are higher than this,
+		 * but the non-KMS DRM interface artificially limits us
+		 * to this many instructions.
+		 *
+		 * We could of course work around it in the KMS path,
+		 * but it would be a mess, so it seems wiser
+		 * to leave it as is. Going forward, the Gallium driver
+		 * will not be subject to these limitations.
+		 */
+		ctx->Const.FragmentProgram.MaxNativeParameters = 255;
+		ctx->Const.FragmentProgram.MaxNativeAluInstructions = 255;
+		ctx->Const.FragmentProgram.MaxNativeTexInstructions = 255;
+		ctx->Const.FragmentProgram.MaxNativeInstructions = 255;
+		ctx->Const.FragmentProgram.MaxNativeTexIndirections = 255;
 		ctx->Const.FragmentProgram.MaxNativeAddressRegs = 0;
 	} else {
 		ctx->Const.FragmentProgram.MaxNativeTemps = R300_PFS_NUM_TEMP_REGS;