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| author | ups <ups@FreeBSD.org> | 2006-03-18 19:32:46 +0000 |
|---|---|---|
| committer | ups <ups@FreeBSD.org> | 2006-03-18 19:32:46 +0000 |
| commit | 1a84cbb2c6edd2929ab017388e746827135d80fc (patch) | |
| tree | 58424b65fa7d212f9b65c8a6cea332ef5e51e12b | |
| parent | e07f710abc0ec78b7d7520bafb2b82dbe430ac4c (diff) | |
| download | FreeBSD-src-1a84cbb2c6edd2929ab017388e746827135d80fc.zip FreeBSD-src-1a84cbb2c6edd2929ab017388e746827135d80fc.tar.gz | |
Enable global pages TLB extension on Application Processors.
MFC after: 3 days
| -rw-r--r-- | sys/amd64/amd64/mp_machdep.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/sys/amd64/amd64/mp_machdep.c b/sys/amd64/amd64/mp_machdep.c index d843a23..7577b62 100644 --- a/sys/amd64/amd64/mp_machdep.c +++ b/sys/amd64/amd64/mp_machdep.c @@ -561,6 +561,13 @@ init_secondary(void) smp_active = 1; /* historic */ } + /* + * Enable global pages TLB extension + * This also implicitly flushes the TLB + */ + + load_cr4(rcr4() | CR4_PGE); + mtx_unlock_spin(&ap_boot_mtx); /* wait until all the AP's are up */ |
