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yaml --- r: 514 b: refs/heads/master c: 4628d7c h: refs/heads/master v: v3
git-mirror · Apr 25, 2005 · 35fabd5 · 35fabd5
1 parent ea1e6ad
commit 35fabd5
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Showing 2 changed files with 4 additions and 4 deletions.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: e96c9b4779e651a7469bea677be3a08f70be399e
+refs/heads/master: 4628d7cada7a19166ba8fe57f5ef0f0009694e1e
diff --git a/trunk/arch/ia64/sn/pci/tioca_provider.c b/trunk/arch/ia64/sn/pci/tioca_provider.c
@@ -171,15 +171,15 @@ tioca_gart_init(struct tioca_kernel *tioca_kern)
 	 *      use agp op-combining
 	 *      use GET semantics to fetch memory
 	 *      participate in coherency domain
-	 *      prefetch TLB entries
+	 * 	DISABLE GART PREFETCHING due to hw bug tracked in SGI PV930029
 	 */
 
 	ca_base->ca_control1 |= CA_AGPDMA_OP_ENB_COMBDELAY;	/* PV895469 ? */
 	ca_base->ca_control2 &= ~(CA_GART_MEM_PARAM);
 	ca_base->ca_control2 |= (0x2ull << CA_GART_MEM_PARAM_SHFT);
 	tioca_kern->ca_gart_iscoherent = 1;
-	ca_base->ca_control2 |=
-	    (CA_GART_WR_PREFETCH_ENB | CA_GART_RD_PREFETCH_ENB);
+	ca_base->ca_control2 &=
+	    ~(CA_GART_WR_PREFETCH_ENB | CA_GART_RD_PREFETCH_ENB);
 
 	/*
 	 * Unmask GART fetch error interrupts.  Clear residual errors first.