diff options
Diffstat (limited to 'src/cpu/amd/model_lx/cpubug.c')
| -rw-r--r-- | src/cpu/amd/model_lx/cpubug.c | 23 |
1 files changed, 12 insertions, 11 deletions
diff --git a/src/cpu/amd/model_lx/cpubug.c b/src/cpu/amd/model_lx/cpubug.c index ce81929b18..1116a4ecf4 100644 --- a/src/cpu/amd/model_lx/cpubug.c +++ b/src/cpu/amd/model_lx/cpubug.c @@ -30,7 +30,6 @@ #include <cpu/x86/msr.h> #include <cpu/amd/lxdef.h> - /************************************************************************** * * pcideadlock @@ -40,27 +39,27 @@ * There is also fix code in cache and PCI functions. This bug is very is pervasive. * **************************************************************************/ -static void pcideadlock(void){ +static void pcideadlock(void) +{ msr_t msr; /* * forces serialization of all load misses. Setting this bit prevents the * DM pipe from backing up if a read request has to be held up waiting * for PCI writes to complete. - */ + */ msr = rdmsr(CPU_DM_CONFIG0); msr.lo |= DM_CONFIG0_LOWER_MISSER_SET; wrmsr(CPU_DM_CONFIG0, msr); - /* write serialize memory hole to PCI. Need to unWS when something is * shadowed regardless of cachablility. */ msr.lo = 0x021212121; msr.hi = 0x021212121; - wrmsr( CPU_RCONF_A0_BF, msr); - wrmsr( CPU_RCONF_C0_DF, msr); - wrmsr( CPU_RCONF_E0_FF, msr); + wrmsr(CPU_RCONF_A0_BF, msr); + wrmsr(CPU_RCONF_C0_DF, msr); + wrmsr(CPU_RCONF_E0_FF, msr); } /****************************************************************************/ @@ -74,17 +73,19 @@ static void pcideadlock(void){ /** to maintain coherency with and the cache is not enabled yet.*/ /***/ /****************************************************************************/ -static void disablememoryreadorder(void){ +static void disablememoryreadorder(void) +{ msr_t msr; msr = rdmsr(MC_CF8F_DATA); - msr.hi |= CF8F_UPPER_REORDER_DIS_SET; + msr.hi |= CF8F_UPPER_REORDER_DIS_SET; wrmsr(MC_CF8F_DATA, msr); } /* For cpu version C3. Should be the only released version */ -void cpubug(void) { - pcideadlock(); +void cpubug(void) +{ + pcideadlock(); disablememoryreadorder(); printk_debug("Done cpubug fixes \n"); } |