diff options
| author | Linus Torvalds <torvalds@linux-foundation.org> | 2012-05-25 15:59:38 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2012-05-25 15:59:38 -0700 |
| commit | fa2af6e4fe0c4d2f8875d42625b25675e8584010 (patch) | |
| tree | ef9a92949858ab763aa1bfda7cb11a5f7b84d123 /arch/tile/mm/migrate.h | |
| parent | 109b9b0408e5f1dd327a44f446841a9fbe0bcd83 (diff) | |
| parent | 1fcb78e9da714d96f65edd37b29dae3b1f7df508 (diff) | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tile
Pull tile updates from Chris Metcalf:
"These changes cover a range of new arch/tile features and
optimizations. They've been through LKML review and on linux-next for
a month or so. There's also one bug-fix that just missed 3.4, which
I've marked for stable."
Fixed up trivial conflict in arch/tile/Kconfig (new added tile Kconfig
entries clashing with the generic timer/clockevents changes).
* git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tile:
tile: default to tilegx_defconfig for ARCH=tile
tile: fix bug where fls(0) was not returning 0
arch/tile: mark TILEGX as not EXPERIMENTAL
tile/mm/fault.c: Port OOM changes to handle_page_fault
arch/tile: add descriptive text if the kernel reports a bad trap
arch/tile: allow querying cpu module information from the hypervisor
arch/tile: fix hardwall for tilegx and generalize for idn and ipi
arch/tile: support multiple huge page sizes dynamically
mm: add new arch_make_huge_pte() method for tile support
arch/tile: support kexec() for tilegx
arch/tile: support <asm/cachectl.h> header for cacheflush() syscall
arch/tile: Allow tilegx to build with either 16K or 64K page size
arch/tile: optimize get_user/put_user and friends
arch/tile: support building big-endian kernel
arch/tile: allow building Linux with transparent huge pages enabled
arch/tile: use interrupt critical sections less
Diffstat (limited to 'arch/tile/mm/migrate.h')
| -rw-r--r-- | arch/tile/mm/migrate.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/arch/tile/mm/migrate.h b/arch/tile/mm/migrate.h index cd45a0837fa..91683d97917 100644 --- a/arch/tile/mm/migrate.h +++ b/arch/tile/mm/migrate.h @@ -24,6 +24,9 @@ /* * This function is used as a helper when setting up the initial * page table (swapper_pg_dir). + * + * You must mask ALL interrupts prior to invoking this code, since + * you can't legally touch the stack during the cache flush. */ extern int flush_and_install_context(HV_PhysAddr page_table, HV_PTE access, HV_ASID asid, @@ -39,6 +42,9 @@ extern int flush_and_install_context(HV_PhysAddr page_table, HV_PTE access, * * Note that any non-NULL pointers must not point to the page that * is handled by the stack_pte itself. + * + * You must mask ALL interrupts prior to invoking this code, since + * you can't legally touch the stack during the cache flush. */ extern int homecache_migrate_stack_and_flush(pte_t stack_pte, unsigned long va, size_t length, pte_t *stack_ptep, |