summaryrefslogtreecommitdiff
path: root/arch/mips/lib/r3k_dump_tlb.c
AgeCommit message (Collapse)AuthorFilesLines
2015-09-03MIPS: Refactor dumping of TLB registers for r3k/r4kJames Hogan1-0/+11
The TLB registers are dumped in a couble of places: - sysrq_tlbdump_single() - when dumping TLB state. - do_mcheck() - in response to a machine check error. The main TLB registers also differ between r3k and r4k, but r4k appears to be assumed. Refactor this code into a dump_tlb_regs() function, implemented for both r3k and r4k, and used by both of the above functions. Fixes: d1e9a4f54735 ("MIPS: Add SysRq operation to dump TLBs on all CPUs") Suggested-by: Maciej W. Rozycki <macro@linux-mips.org> Signed-off-by: James Hogan <james.hogan@imgtec.com> Cc: Maciej W. Rozycki <macro@linux-mips.org> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/10721/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-06-21MIPS: tlb-r3k: Move CP0.Wired register initialisation to `tlb_init'Maciej W. Rozycki1-2/+0
Move the initialisation of the CP0.Wired register implemented by Toshiba TX3922 and TX3927 processors from `tx39_cache_init' to `tlb_init' where it belongs, correcting code structure and making sure initialisation does not rely on `tx39_cache_init' being called before `tlb_init' to work correctly. Make `r3k_have_wired_reg' static as it's no longer externally referred to; remove a stale declaration too. Signed-off-by: Maciej W. Rozycki <macro@linux-mips.org> Cc: James Hogan <james.hogan@imgtec.com> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/10195/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-06-21MIPS: dump_tlb: Take global bit into accountJames Hogan1-2/+3
The TLB only matches the ASID when the global bit isn't set, so dump_tlb() shouldn't really be skipping global entries just because the ASID doesn't match. Fix the condition to read the TLB entry's global bit from EntryLo0. Note that after a TLB read the global bits in both EntryLo registers reflect the same global bit in the TLB entry. Signed-off-by: James Hogan <james.hogan@imgtec.com> Cc: Maciej W. Rozycki <macro@linux-mips.org> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/10079/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-06-21MIPS: dump_tlb: Make use of EntryLo bit definitionsJames Hogan1-4/+4
Make use of recently added EntryLo bit definitions in mipsregs.h when dumping TLB contents. Signed-off-by: James Hogan <james.hogan@imgtec.com> Cc: Maciej W. Rozycki <macro@linux-mips.org> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/10075/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-11-24MIPS: R3000: Remove redundant parenthesesIsamu Mogi1-1/+1
Signed-off-by: Isamu Mogi <isamu@leafytree.jp> Cc: linux-mips@linux-mips.org Cc: linux-kernel@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/8292/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-11-24MIPS: R3000: Replace magic numbers with macrosIsamu Mogi1-5/+6
Also include asm/mmu_context.h for ASID_MASK. Signed-off-by: Isamu Mogi <isamu@leafytree.jp> Cc: linux-mips@linux-mips.org Cc: linux-kernel@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/8291/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-11-06MIPS: R3000: Fix debug output for Virtual page numberIsamu Mogi1-2/+2
Virtual page number of R3000 in entryhi is 20 bit from MSB. But in dump_tlb(), the bit mask to read it from entryhi is 19 bit (0xffffe000). The patch fixes that to 0xfffff000. Signed-off-by: Isamu Mogi <isamu@leafytree.jp> Cc: linux-mips@linux-mips.org Cc: linux-kernel@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/8290/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-05-16Revert "MIPS: Allow ASID size to be determined at boot time."David Daney1-4/+3
This reverts commit d532f3d26716a39dfd4b88d687bd344fbe77e390. The original commit has several problems: 1) Doesn't work with 64-bit kernels. 2) Calls TLBMISS_HANDLER_SETUP() before the code is generated. 3) Calls TLBMISS_HANDLER_SETUP() twice in per_cpu_trap_init() when only one call is needed. [ralf@linux-mips.org: Also revert the bits of the ASID patch which were hidden in the KVM merge.] Signed-off-by: David Daney <david.daney@cavium.com> Cc: linux-mips@linux-mips.org Cc: linux-kernel@vger.kernel.org Cc: "Steven J. Hill" <Steven.Hill@imgtec.com> Cc: David Daney <david.daney@cavium.com> Patchwork: https://patchwork.linux-mips.org/patch/5242/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-05-08MIPS: Allow ASID size to be determined at boot time.Steven J. Hill1-3/+4
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>
2013-02-01MIPS: Whitespace cleanup.Ralf Baechle1-1/+1
Having received another series of whitespace patches I decided to do this once and for all rather than dealing with this kind of patches trickling in forever. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-07-12[MIPS] Cleanup tlbdebug.hAtsushi Nemoto1-0/+1
Also include tlbdebug.h in dump_tlb.c and r3k_dump_tlb.c. Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-07-10[MIPS] Remove unused dump_tlb functionsAtsushi Nemoto1-121/+1
Remove unused dump_tlb functions and cleanup some includes. Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-07-10[MIPS] Unify dump_tlbAtsushi Nemoto1-0/+182
Unify lib-{32,64}/dump_tlb.c into lib/dump_tlb.c and move lib-32/r3k_dump_tlb.c to lib directory. Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
generated by cgit v1.2.3 (git 2.39.0) at 2025-01-18 13:22:32 +0300