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| author | Paul Mackerras <paulus@samba.org> | 2008-01-31 01:25:51 +0100 |
|---|---|---|
| committer | Paul Mackerras <paulus@samba.org> | 2008-01-31 01:25:51 +0100 |
| commit | bd45ac0c5daae35e7c71138172e63df5cf644cf6 (patch) | |
| tree | 5eb5a599bf6a9d7a8a34e802db932aa9e9555de4 /arch/mips/kernel/cpu-bugs64.c | |
| parent | Merge branch 'for-2.6.25' of git://git.secretlab.ca/git/linux-2.6-mpc52xx (diff) | |
| parent | Merge git://git.kernel.org/pub/scm/linux/kernel/git/wim/linux-2.6-watchdog (diff) | |
| download | linux-bd45ac0c5daae35e7c71138172e63df5cf644cf6.tar.xz linux-bd45ac0c5daae35e7c71138172e63df5cf644cf6.zip | |
Merge branch 'linux-2.6'
Diffstat (limited to 'arch/mips/kernel/cpu-bugs64.c')
| -rw-r--r-- | arch/mips/kernel/cpu-bugs64.c | 47 |
1 files changed, 23 insertions, 24 deletions
diff --git a/arch/mips/kernel/cpu-bugs64.c b/arch/mips/kernel/cpu-bugs64.c index af78456d4138..417bb3e336ac 100644 --- a/arch/mips/kernel/cpu-bugs64.c +++ b/arch/mips/kernel/cpu-bugs64.c @@ -18,6 +18,15 @@ #include <asm/mipsregs.h> #include <asm/system.h> +static char bug64hit[] __initdata = + "reliable operation impossible!\n%s"; +static char nowar[] __initdata = + "Please report to <linux-mips@linux-mips.org>."; +static char r4kwar[] __initdata = + "Enable CPU_R4000_WORKAROUNDS to rectify."; +static char daddiwar[] __initdata = + "Enable CPU_DADDI_WORKAROUNDS to rectify."; + static inline void align_mod(const int align, const int mod) { asm volatile( @@ -155,13 +164,7 @@ static inline void check_mult_sh(void) } printk("no.\n"); - panic("Reliable operation impossible!\n" -#ifndef CONFIG_CPU_R4000 - "Configure for R4000 to enable the workaround." -#else - "Please report to <linux-mips@linux-mips.org>." -#endif - ); + panic(bug64hit, !R4000_WAR ? r4kwar : nowar); } static volatile int daddi_ov __initdata = 0; @@ -233,15 +236,11 @@ static inline void check_daddi(void) } printk("no.\n"); - panic("Reliable operation impossible!\n" -#if !defined(CONFIG_CPU_R4000) && !defined(CONFIG_CPU_R4400) - "Configure for R4000 or R4400 to enable the workaround." -#else - "Please report to <linux-mips@linux-mips.org>." -#endif - ); + panic(bug64hit, !DADDI_WAR ? daddiwar : nowar); } +int daddiu_bug __initdata = -1; + static inline void check_daddiu(void) { long v, w, tmp; @@ -281,7 +280,9 @@ static inline void check_daddiu(void) : "=&r" (v), "=&r" (w), "=&r" (tmp) : "I" (0xffffffffffffdb9aUL), "I" (0x1234)); - if (v == w) { + daddiu_bug = v != w; + + if (!daddiu_bug) { printk("no.\n"); return; } @@ -303,18 +304,16 @@ static inline void check_daddiu(void) } printk("no.\n"); - panic("Reliable operation impossible!\n" -#if !defined(CONFIG_CPU_R4000) && !defined(CONFIG_CPU_R4400) - "Configure for R4000 or R4400 to enable the workaround." -#else - "Please report to <linux-mips@linux-mips.org>." -#endif - ); + panic(bug64hit, !DADDI_WAR ? daddiwar : nowar); } -void __init check_bugs64(void) +void __init check_bugs64_early(void) { check_mult_sh(); - check_daddi(); check_daddiu(); } + +void __init check_bugs64(void) +{ + check_daddi(); +} |