1 files changed, 6 insertions, 6 deletions

diff --git a/src/nv10_exa.c b/src/nv10_exa.c
index a3425a8..d74b052 100644
--- a/src/nv10_exa.c
+++ b/src/nv10_exa.c
@@ -725,18 +725,18 @@ NVAccelInitNV10TCL(ScrnInfoPtr pScrn)
         NVPtr pNv = NVPTR(pScrn);
         struct nouveau_channel *chan = pNv->chan;
         struct nouveau_grobj *celsius;
-        uint32_t class = 0, chipset;
+        uint32_t class = 0;
         int i;
 
-        chipset = (nvReadMC(pNv, NV_PMC_BOOT_0) >> 20) & 0xff;
-        if (((chipset & 0xf0) != NV_ARCH_10) && ((chipset & 0xf0) != NV_ARCH_20))
+        if (((pNv->NVArch & 0xf0) != NV_ARCH_10) &&
+            ((pNv->NVArch & 0xf0) != NV_ARCH_20))
                 return FALSE;
 
-        if (chipset >= 0x20 || chipset == 0x1a)
+        if (pNv->NVArch >= 0x20 || pNv->NVArch == 0x1a)
                 class = NV11TCL;
-        else if (chipset >= 0x17)
+        else if (pNv->NVArch >= 0x17)
                 class = NV17TCL;
-        else if (chipset >= 0x11)
+        else if (pNv->NVArch >= 0x11)
                 class = NV11TCL;
         else
                 class = NV10TCL;