diff options
| author | James Hogan <james.hogan@imgtec.com> | 2015-05-19 09:50:38 +0100 |
|---|---|---|
| committer | Ralf Baechle <ralf@linux-mips.org> | 2015-06-21 21:52:39 +0200 |
| commit | 24ca1d9896bb9bbd7625e3596bac4ea2fe74c725 (patch) | |
| tree | b5497e24dd199ddc244f7a8d2d439112ef056a26 | |
| parent | c2bc435e4f2cd5f010063b49f68e5b2cfaccc84e (diff) | |
MIPS: dump_tlb: Take XPA into account
XPA extends the physical addresses on MIPS32, including the EntryLo
registers. Update dump_tlb() to concatenate the PFNX field from the high
end of the EntryLo registers (as read by mfhc0).
The width of physical and virtual addresses are also separated to show
only 8 nibbles of virtual but 11 nibbles of physical with XPA.
Signed-off-by: James Hogan <james.hogan@imgtec.com>
Cc: Steven J. Hill <Steven.Hill@imgtec.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/10077/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| -rw-r--r-- | arch/mips/lib/dump_tlb.c | 18 |
1 files changed, 13 insertions, 5 deletions
diff --git a/arch/mips/lib/dump_tlb.c b/arch/mips/lib/dump_tlb.c index 1fefd38aba08..167f35634709 100644 --- a/arch/mips/lib/dump_tlb.c +++ b/arch/mips/lib/dump_tlb.c @@ -47,9 +47,13 @@ static void dump_tlb(int first, int last) unsigned long long entrylo0, entrylo1, pa; unsigned int s_index, s_pagemask, pagemask, c0, c1, i; #ifdef CONFIG_32BIT - int width = 8; + bool xpa = cpu_has_xpa && (read_c0_pagegrain() & PG_ELPA); + int pwidth = xpa ? 11 : 8; + int vwidth = 8; #else - int width = 11; + bool xpa = false; + int pwidth = 11; + int vwidth = 11; #endif s_pagemask = read_c0_pagemask(); @@ -96,10 +100,12 @@ static void dump_tlb(int first, int last) c1 = (entrylo1 & MIPS_ENTRYLO_C) >> MIPS_ENTRYLO_C_SHIFT; printk("va=%0*lx asid=%02lx\n", - width, (entryhi & ~0x1fffUL), + vwidth, (entryhi & ~0x1fffUL), entryhi & 0xff); /* RI/XI are in awkward places, so mask them off separately */ pa = entrylo0 & ~(MIPS_ENTRYLO_RI | MIPS_ENTRYLO_XI); + if (xpa) + pa |= (unsigned long long)readx_c0_entrylo0() << 30; pa = (pa << 6) & PAGE_MASK; printk("\t["); if (cpu_has_rixi) @@ -107,19 +113,21 @@ static void dump_tlb(int first, int last) (entrylo0 & MIPS_ENTRYLO_RI) ? 1 : 0, (entrylo0 & MIPS_ENTRYLO_XI) ? 1 : 0); printk("pa=%0*llx c=%d d=%d v=%d g=%d] [", - width, pa, c0, + pwidth, pa, c0, (entrylo0 & MIPS_ENTRYLO_D) ? 1 : 0, (entrylo0 & MIPS_ENTRYLO_V) ? 1 : 0, (entrylo0 & MIPS_ENTRYLO_G) ? 1 : 0); /* RI/XI are in awkward places, so mask them off separately */ pa = entrylo1 & ~(MIPS_ENTRYLO_RI | MIPS_ENTRYLO_XI); + if (xpa) + pa |= (unsigned long long)readx_c0_entrylo1() << 30; pa = (pa << 6) & PAGE_MASK; if (cpu_has_rixi) printk("ri=%d xi=%d ", (entrylo1 & MIPS_ENTRYLO_RI) ? 1 : 0, (entrylo1 & MIPS_ENTRYLO_XI) ? 1 : 0); printk("pa=%0*llx c=%d d=%d v=%d g=%d]\n", - width, pa, c1, + pwidth, pa, c1, (entrylo1 & MIPS_ENTRYLO_D) ? 1 : 0, (entrylo1 & MIPS_ENTRYLO_V) ? 1 : 0, (entrylo1 & MIPS_ENTRYLO_G) ? 1 : 0); |