diff options
| author | David S. Miller <davem@davemloft.net> | 2008-06-10 02:22:26 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2008-06-10 02:22:26 -0700 |
| commit | 65b53e4cc90e59936733b3b95b9451d2ca47528d (patch) | |
| tree | 29932718192962671c48c3fd1ea017a6112459e8 /arch/ia64/kernel/patch.c | |
| parent | 788c0a53164c05c5ccdb1472474372b72ba74644 (diff) | |
| parent | 2e761e0532a784816e7e822dbaaece8c5d4be14d (diff) | |
Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
Conflicts:
drivers/net/tg3.c
drivers/net/wireless/rt2x00/rt2x00dev.c
net/mac80211/ieee80211_i.h
Diffstat (limited to 'arch/ia64/kernel/patch.c')
| -rw-r--r-- | arch/ia64/kernel/patch.c | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/arch/ia64/kernel/patch.c b/arch/ia64/kernel/patch.c index e0dca8743db..b83b2c51600 100644 --- a/arch/ia64/kernel/patch.c +++ b/arch/ia64/kernel/patch.c @@ -115,6 +115,29 @@ ia64_patch_vtop (unsigned long start, unsigned long end) ia64_srlz_i(); } +/* + * Disable the RSE workaround by turning the conditional branch + * that we tagged in each place the workaround was used into an + * unconditional branch. + */ +void __init +ia64_patch_rse (unsigned long start, unsigned long end) +{ + s32 *offp = (s32 *) start; + u64 ip, *b; + + while (offp < (s32 *) end) { + ip = (u64) offp + *offp; + + b = (u64 *)(ip & -16); + b[1] &= ~0xf800000L; + ia64_fc((void *) ip); + ++offp; + } + ia64_sync_i(); + ia64_srlz_i(); +} + void __init ia64_patch_mckinley_e9 (unsigned long start, unsigned long end) { |