| commit | d76ab5e1c7db5f064700b9c3cb0924ccfd9017e5 | |
| author | Nikunj A Dadhania <nikunj@linux.vnet.ibm.com> | |
| Tue, 20 Sep 2016 16:35:01 +0000 (20 22:05 +0530) | ||
| committer | David Gibson <david@gibson.dropbear.id.au> | |
| Fri, 23 Sep 2016 02:39:07 +0000 (23 12:39 +1000) | ||
| tree | 02a6851b90b0fe8d6cede2dd4c0041ee416336b3 | treesnapshot (tar.gz zip) |
| parent | e3cffe6fad29e07d401eabb913a6d88501d5c143 | commitdiff |
target-ppc: tlbie/tlbivax should have global effect
tlbie (BookS) and tlbivax (BookE) plus the H_CALLs(pseries) should have
a global effect.
Introduces TLB_NEED_GLOBAL_FLUSH flag. During lazy tlb flush, after
taking care of pending local flushes, check broadcast flush(at context
synchronizing event ptesync/tlbsync, etc) is needed. Depending on the
bitmask state of the tlb_need_flush, tlb is flushed from other cpus if
needed and the flags are cleared.
Suggested-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Nikunj A Dadhania <nikunj@linux.vnet.ibm.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
[dwg: Use 'true' instead of '1' for call to check_tlb_flush()]
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
tlbie (BookS) and tlbivax (BookE) plus the H_CALLs(pseries) should have
a global effect.
Introduces TLB_NEED_GLOBAL_FLUSH flag. During lazy tlb flush, after
taking care of pending local flushes, check broadcast flush(at context
synchronizing event ptesync/tlbsync, etc) is needed. Depending on the
bitmask state of the tlb_need_flush, tlb is flushed from other cpus if
needed and the flags are cleared.
Suggested-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Nikunj A Dadhania <nikunj@linux.vnet.ibm.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
[dwg: Use 'true' instead of '1' for call to check_tlb_flush()]
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>