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819da1ead1
linux/arch/mips/mm
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Paul Burton 819da1ead1 MIPS: c-r4k: Treat I6400 dcache as though physically indexed 
The L1 data cache in I6400 CPUs is indexed by physical address bits if
an entry for the address is present in the DTLB early enough in the
pipelined execution of a memory access instruction. If an entry is not
present then it's indexed by virtual address bits, but hardware will
check in a later pipeline stage when a DTLB entry has been created
whether the virtual address bits used match the physical address bits,
and if not will transparently restart the memory access instruction.

This means that although it isn't always physically indexed, it appears
so to software & we can treat the I6400 L1 data cache as being
physically indexed in order to avoid considering aliasing.

Signed-off-by: Paul Burton <paul.burton@imgtec.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/14016/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2017-01-03 16:48:40 +01:00
..
c-octeon.c MIPS: c-r4k: Split user/kernel flush_icache_range() 2016-10-04 16:13:57 +02:00
c-r3k.c MIPS: c-r4k: Split user/kernel flush_icache_range() 2016-10-04 16:13:57 +02:00
c-r4k.c MIPS: c-r4k: Treat I6400 dcache as though physically indexed 2017-01-03 16:48:40 +01:00
c-tx39.c MIPS: c-r4k: Split user/kernel flush_icache_range() 2016-10-04 16:13:57 +02:00
cache.c MIPS: mm: Audit and remove any unnecessary uses of module.h 2016-10-05 01:31:20 +02:00
cerr-sb1.c MIPS: Sibyte: Fix build for SIBYTE_BW_TRACE on BCM1x55 and BCM1x80. 2013-06-21 18:07:02 +02:00
cex-gen.S MIPS: Whitespace cleanup. 2013-02-01 10:00:22 +01:00
cex-oct.S MIPS: Whitespace cleanup. 2013-02-01 10:00:22 +01:00
cex-sb1.S mips: delete non-required instances of include <linux/init.h> 2014-01-24 22:39:56 +01:00
dma-default.c arch/mips: add option to skip DMA sync as a part of map and unmap 2016-12-14 16:04:07 -08:00
extable.c Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
fault.c MIPS: mm: Fix output of __do_page_fault 2016-11-25 12:08:10 +01:00
gup.c mm: replace get_user_pages_unlocked() write/force parameters with gup_flags 2016-10-18 14:13:37 -07:00
highmem.c MIPS: mm: Audit and remove any unnecessary uses of module.h 2016-10-05 01:31:20 +02:00
hugetlbpage.c mm/hugetlb: reduce arch dependent code about huge_pmd_unshare 2015-06-24 17:49:41 -07:00
init.c MIPS: Export invalid_pte_table alongside its definition 2017-01-03 16:34:49 +01:00
ioremap.c MIPS: mm: Audit and remove any unnecessary uses of module.h 2016-10-05 01:31:20 +02:00
Makefile MIPS: Allow L2 prefetch to be configured via debugfs 2015-10-26 09:49:42 +01:00
mmap.c MIPS: Add support for ARCH_MMAP_RND_{COMPAT_}BITS 2017-01-03 16:34:43 +01:00
page-funcs.S MIPS: Export {copy, clear}_page functions alongside their definitions 2017-01-03 16:48:39 +01:00
page.c MIPS: Export {copy, clear}_page functions alongside their definitions 2017-01-03 16:48:39 +01:00
pgtable-32.c MIPS: Limit fixrange_init() to the FIXMAP region 2011-07-25 17:26:54 +01:00
pgtable-64.c mips, thp: remove infrastructure for handling splitting PMDs 2016-01-15 17:56:32 -08:00
sc-debugfs.c Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
sc-ip22.c MIPS: IP22: Fix build error due to binutils 2.25 uselessnes. 2017-01-03 16:34:33 +01:00
sc-mips.c MIPS: Add P6600 cases to CPU switch statements 2016-05-13 14:01:52 +02:00
sc-r5k.c MIPS: Remove useless parentheses 2014-11-24 07:44:49 +01:00
sc-rm7k.c MIPS: RM7000: Double locking bug in rm7k_tc_disable() 2016-07-21 10:59:46 +02:00
tlb-funcs.S MIPS: mm: Fix broken microMIPS kernel regression. 2014-05-14 18:11:06 +02:00
tlb-r3k.c MIPS: Retrieve ASID masks using function accepting struct cpuinfo_mips 2016-05-13 14:02:20 +02:00
tlb-r4k.c MIPS: Mask out limit field when calculating wired entry count 2016-11-24 16:44:16 +01:00
tlb-r8k.c MIPS: Retrieve ASID masks using function accepting struct cpuinfo_mips 2016-05-13 14:02:20 +02:00
tlbex-fault.S MIPS: Don't include <asm/page.h> unnecessarily. 2012-12-28 17:04:04 +01:00
tlbex.c MIPS: tlbex: Clear ISA bit when writing to handle_tlb{l,m,s} 2017-01-03 16:34:49 +01:00
uasm-micromips.c MIPS: uasm: Add MTHI/MTLO instructions 2016-07-05 16:08:35 +02:00
uasm-mips.c Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus 2016-08-06 09:13:11 -04:00
uasm.c Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus 2016-08-06 09:13:11 -04:00