1 files changed, 1 insertions, 2 deletions

diff --git a/src/nv40_exa.c b/src/nv40_exa.c
index 03efce4..2b36f2d 100644
--- a/src/nv40_exa.c
+++ b/src/nv40_exa.c
@@ -612,8 +612,7 @@ NVAccelInitNV40TCL(ScrnInfoPtr pScrn)
         if (!nv40_fp_map_a8[0])
                 NV40EXAHackupA8Shaders(pScrn);
 
-        chipset = (nvReadMC(pNv, NV_PMC_BOOT_0) >> 20) & 0xff;
-
+        chipset = pNv->NVArch;
         if ( (chipset & 0xf0) == NV_ARCH_40) {
                 chipset &= 0xf;
                 if (NV40TCL_CHIPSET_4X_MASK & (1<<chipset))