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| author |   Paul Burton <paul.burton@imgtec.com> | 2016-05-06 14:36:23 +0100 |
|---|---|---|
| committer |   Ralf Baechle <ralf@linux-mips.org> | 2016-05-13 14:02:20 +0200 |
| commit | 4edf00a46bee692f62578b5280c5774f9b65a08f (patch) | |
| tree | 3536ce8de630a22e4ff20be455e95ab202bfc436 /arch/mips/lib/dump_tlb.c | |
| parent | MIPS: KVM/locore.S: Relax noat (diff) | |
| download | linux-dev-4edf00a46bee692f62578b5280c5774f9b65a08f.tar.xz linux-dev-4edf00a46bee692f62578b5280c5774f9b65a08f.zip | |
MIPS: Retrieve ASID masks using function accepting struct cpuinfo_mips
In preparation for supporting variable ASID masks, retrieve ASID masks
using functions in asm/cpu-info.h which accept struct cpuinfo_mips. This
will allow those functions to determine the ASID mask based upon the CPU
in a later patch. This also allows for the r3k & r8k cases to be handled
in Kconfig, which is arguably cleaner than the previous #ifdefs.
Signed-off-by: Paul Burton <paul.burton@imgtec.com>
Signed-off-by: James Hogan <james.hogan@imgtec.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Radim Krčmář <rkrcmar@redhat.com>
Cc: linux-mips@linux-mips.org
Cc: kvm@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/13210/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch/mips/lib/dump_tlb.c')
| -rw-r--r-- | arch/mips/lib/dump_tlb.c | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/arch/mips/lib/dump_tlb.c b/arch/mips/lib/dump_tlb.c index 92a37319efbe..3283aa7423e4 100644 --- a/arch/mips/lib/dump_tlb.c +++ b/arch/mips/lib/dump_tlb.c @@ -73,6 +73,8 @@ static void dump_tlb(int first, int last) unsigned long s_entryhi, entryhi, asid; unsigned long long entrylo0, entrylo1, pa; unsigned int s_index, s_pagemask, pagemask, c0, c1, i; + unsigned long asidmask = cpu_asid_mask(¤t_cpu_data); + int asidwidth = DIV_ROUND_UP(ilog2(asidmask) + 1, 4); #ifdef CONFIG_32BIT bool xpa = cpu_has_xpa && (read_c0_pagegrain() & PG_ELPA); int pwidth = xpa ? 11 : 8; @@ -86,7 +88,7 @@ static void dump_tlb(int first, int last) s_pagemask = read_c0_pagemask(); s_entryhi = read_c0_entryhi(); s_index = read_c0_index(); - asid = s_entryhi & 0xff; + asid = s_entryhi & asidmask; for (i = first; i <= last; i++) { write_c0_index(i); @@ -115,7 +117,7 @@ static void dump_tlb(int first, int last) * due to duplicate TLB entry. */ if (!((entrylo0 | entrylo1) & ENTRYLO_G) && - (entryhi & 0xff) != asid) + (entryhi & asidmask) != asid) continue; /* @@ -126,9 +128,9 @@ static void dump_tlb(int first, int last) c0 = (entrylo0 & ENTRYLO_C) >> ENTRYLO_C_SHIFT; c1 = (entrylo1 & ENTRYLO_C) >> ENTRYLO_C_SHIFT; - printk("va=%0*lx asid=%02lx\n", + printk("va=%0*lx asid=%0*lx\n", vwidth, (entryhi & ~0x1fffUL), - entryhi & 0xff); + asidwidth, entryhi & asidmask); /* RI/XI are in awkward places, so mask them off separately */ pa = entrylo0 & ~(MIPS_ENTRYLO_RI | MIPS_ENTRYLO_XI); if (xpa) |