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authorSteven J. Hill <Steven.Hill@imgtec.com>2013-03-25 11:58:57 -0500
committerRalf Baechle <ralf@linux-mips.org>2013-05-08 12:30:10 +0200
commitd532f3d26716a39dfd4b88d687bd344fbe77e390 (patch)
tree64bb16ffd8176e0c9e692817b1d17df717c127ed /arch/mips/kernel/genex.S
parent49bffbdc88fdd8f5eac40306a617252625a0fa35 (diff)
MIPS: Allow ASID size to be determined at boot time.
Original patch by Ralf Baechle and removed by Harold Koerfgen with commit f67e4ffc79905482c3b9b8c8dd65197bac7eb508. This allows for more generic kernels since the size of the ASID and corresponding masks can be determined at run-time. This patch is also required for the new Aptiv cores and has been tested on Malta and Malta Aptiv platforms. [ralf@linux-mips.org: Added relevant part of fix https://patchwork.linux-mips.org/patch/5213/] Signed-off-by: Steven J. Hill <Steven.Hill@imgtec.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch/mips/kernel/genex.S')
-rw-r--r--arch/mips/kernel/genex.S2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/mips/kernel/genex.S b/arch/mips/kernel/genex.S
index ecb347ce1b3..5360b1db337 100644
--- a/arch/mips/kernel/genex.S
+++ b/arch/mips/kernel/genex.S
@@ -480,7 +480,7 @@ NESTED(nmi_handler, PT_SIZE, sp)
.set noreorder
/* check if TLB contains a entry for EPC */
MFC0 k1, CP0_ENTRYHI
- andi k1, 0xff /* ASID_MASK */
+ andi k1, 0xff /* ASID_MASK patched at run-time!! */
MFC0 k0, CP0_EPC
PTR_SRL k0, _PAGE_SHIFT + 1
PTR_SLL k0, _PAGE_SHIFT + 1