diff options
| author | David S. Miller <davem@sunset.davemloft.net> | 2006-02-05 21:29:28 -0800 |
|---|---|---|
| committer | David S. Miller <davem@sunset.davemloft.net> | 2006-03-20 01:11:48 -0800 |
| commit | 936f482af1743141d637483ec10eb881537c26dc (patch) | |
| tree | 913da89a4d9f4038c510c9ecf2f5957b0f6d167f /arch/sparc64/kernel/setup.c | |
| parent | 6e02493a7f33ac89e698b980a657d77ab2749eaf (diff) | |
[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 'arch/sparc64/kernel/setup.c')
| -rw-r--r-- | arch/sparc64/kernel/setup.c | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/arch/sparc64/kernel/setup.c b/arch/sparc64/kernel/setup.c index 2918ed3eb1ba..aaab319ad885 100644 --- a/arch/sparc64/kernel/setup.c +++ b/arch/sparc64/kernel/setup.c @@ -545,6 +545,24 @@ static void __init per_cpu_patch(void) #endif } +static void __init gl_patch(void) +{ + struct gl_1insn_patch_entry *p; + + if (tlb_type != hypervisor) + return; + + p = &__gl_1insn_patch; + while (p < &__gl_1insn_patch_end) { + unsigned long addr = p->addr; + + *(unsigned int *) (addr + 0) = p->insn; + __asm__ __volatile__("flush %0" : : "r" (addr + 0)); + + p++; + } +} + void __init setup_arch(char **cmdline_p) { /* Initialize PROM console and command line. */ @@ -567,6 +585,8 @@ void __init setup_arch(char **cmdline_p) */ per_cpu_patch(); + gl_patch(); + boot_flags_init(*cmdline_p); idprom_init(); |