diff options
| author | David S. Miller <davem@sunset.davemloft.net> | 2006-02-06 06:29:28 +0100 |
|---|---|---|
| committer | David S. Miller <davem@sunset.davemloft.net> | 2006-03-20 10:11:48 +0100 |
| commit | 936f482af1743141d637483ec10eb881537c26dc (patch) | |
| tree | 913da89a4d9f4038c510c9ecf2f5957b0f6d167f /include | |
| parent | [SPARC64]: Fill dead cycles on trap entry with real work. (diff) | |
| download | linux-936f482af1743141d637483ec10eb881537c26dc.tar.xz linux-936f482af1743141d637483ec10eb881537c26dc.zip | |
[SPARC64]: Add initial code to twiddle %gl on trap entry/exit.
Instead of setting/clearing PSTATE_AG we have to change
the %gl register value on sun4v.
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include')
| -rw-r--r-- | include/asm-sparc64/cpudata.h | 5 | ||||
| -rw-r--r-- | include/asm-sparc64/head.h | 4 |
2 files changed, 9 insertions, 0 deletions
diff --git a/include/asm-sparc64/cpudata.h b/include/asm-sparc64/cpudata.h index 4f28a85c1043..8666440c89af 100644 --- a/include/asm-sparc64/cpudata.h +++ b/include/asm-sparc64/cpudata.h @@ -73,6 +73,11 @@ struct cpuid_patch_entry { extern struct cpuid_patch_entry __cpuid_patch, __cpuid_patch_end; #endif +struct gl_1insn_patch_entry { + unsigned int addr; + unsigned int insn; +}; +extern struct gl_1insn_patch_entry __gl_1insn_patch, __gl_1insn_patch_end; #endif /* !(__ASSEMBLY__) */ #define TRAP_PER_CPU_THREAD 0x00 diff --git a/include/asm-sparc64/head.h b/include/asm-sparc64/head.h index 731c842f3d11..ff76c0981b63 100644 --- a/include/asm-sparc64/head.h +++ b/include/asm-sparc64/head.h @@ -4,6 +4,10 @@ #include <asm/pstate.h> + /* wrpr %g0, val, %gl */ +#define SET_GL(val) \ + .word 0xa1902000 | val + #define KERNBASE 0x400000 #define PTREGS_OFF (STACK_BIAS + STACKFRAME_SZ) |