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-rw-r--r--src/radeon_atombios.c19
1 files changed, 17 insertions, 2 deletions
diff --git a/src/radeon_atombios.c b/src/radeon_atombios.c
index 6db821f2..a8eded66 100644
--- a/src/radeon_atombios.c
+++ b/src/radeon_atombios.c
@@ -30,6 +30,7 @@
#include "xf86_OSproc.h"
#include "radeon.h"
+#include "radeon_reg.h"
#include "radeon_atombios.h"
#include "radeon_atomwrapper.h"
#include "radeon_probe.h"
@@ -2646,9 +2647,16 @@ CailReadATIRegister(VOID* CAIL, UINT32 idx)
RADEONEntPtr pRADEONEnt = RADEONEntPriv(pScrn);
unsigned char *RADEONMMIO = pRADEONEnt->MMIO;
UINT32 ret;
+ UINT32 mm_reg = idx << 2;
CAILFUNC(CAIL);
- ret = INREG(idx << 2);
+ if (mm_reg < 0x10000)
+ ret = INREG(mm_reg);
+ else {
+ OUTREG(RADEON_MM_INDEX, mm_reg);
+ ret = INREG(RADEON_MM_DATA);
+ }
+
/*DEBUGP(ErrorF("%s(%x) = %x\n",__func__,idx << 2,ret));*/
return ret;
}
@@ -2659,9 +2667,16 @@ CailWriteATIRegister(VOID *CAIL, UINT32 idx, UINT32 data)
ScrnInfoPtr pScrn = xf86Screens[((atomBiosHandlePtr)CAIL)->scrnIndex];
RADEONEntPtr pRADEONEnt = RADEONEntPriv(pScrn);
unsigned char *RADEONMMIO = pRADEONEnt->MMIO;
+ UINT32 mm_reg = idx << 2;
CAILFUNC(CAIL);
- OUTREG(idx << 2,data);
+ if (mm_reg < 0x10000)
+ OUTREG(mm_reg, data);
+ else {
+ OUTREG(RADEON_MM_INDEX, mm_reg);
+ OUTREG(RADEON_MM_DATA, data);
+ }
+
/*DEBUGP(ErrorF("%s(%x,%x)\n",__func__,idx << 2,data));*/
}