linux/arch/sparc/mm
Khalid Aziz 494e5b6fae sparc: Resolve conflict between sparc v9 and M7 on usage of bit 9 of TTE
sparc: Resolve conflict between sparc v9 and M7 on usage of bit 9 of TTE

Bit 9 of TTE is CV (Cacheable in V-cache) on sparc v9 processor while
the same bit 9 is MCDE (Memory Corruption Detection Enable) on M7
processor. This creates a conflicting usage of the same bit. Kernel
sets TTE.cv bit on all pages for sun4v architecture which works well
for sparc v9 but enables memory corruption detection on M7 processor
which is not the intent. This patch adds code to determine if kernel
is running on M7 processor and takes steps to not enable memory
corruption detection in TTE erroneously.

Signed-off-by: Khalid Aziz <khalid.aziz@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-05-31 22:15:01 -07:00
..
extable.c sparc: Add module.h to files previously implicitly using it. 2011-10-31 19:30:54 -04:00
fault_32.c vm: add VM_FAULT_SIGSEGV handling support 2015-01-29 10:51:32 -08:00
fault_64.c vm: add VM_FAULT_SIGSEGV handling support 2015-01-29 10:51:32 -08:00
gup.c mm: gup: use get_user_pages_unlocked within get_user_pages_fast 2015-02-11 17:06:05 -08:00
highmem.c sparc32: move kmap_init() to highmem.c 2012-07-26 16:46:17 -07:00
hugetlbpage.c mm/hugetlb: reduce arch dependent code around follow_huge_* 2015-02-11 17:06:01 -08:00
hypersparc.S [PATCH] sparc32: vm_area_struct access for old Sun SPARCs. 2013-07-10 13:56:10 -07:00
init_32.c sparc32: fix sparse warning in devices.c 2014-04-29 01:12:26 -04:00
init_64.c sparc: Resolve conflict between sparc v9 and M7 on usage of bit 9 of TTE 2015-05-31 22:15:01 -07:00
init_64.h sparc64: Use kernel page tables for vmemmap. 2014-10-05 16:53:39 -07:00
io-unit.c sparc32: fix sparse warning in io-unit.c 2014-05-18 19:01:26 -07:00
iommu.c sparc32: fix sparse warning in iommu.c 2014-05-18 19:01:26 -07:00
leon_mm.c sparc32: fix sparse "Should it be static?" in mm/ 2014-04-29 01:12:25 -04:00
Makefile sparc32: introduce run-time patching of srmmu access functions 2012-05-27 23:52:49 -07:00
mm_32.h sparc32: fix sparse "Should it be static?" in mm/ 2014-04-29 01:12:25 -04:00
srmmu_access.S sparc32: introduce run-time patching of srmmu access functions 2012-05-27 23:52:49 -07:00
srmmu.c sparc32: destroy_context() and switch_mm() needs to disable interrupts. 2014-12-18 12:47:54 -05:00
swift.S [PATCH] sparc32: vm_area_struct access for old Sun SPARCs. 2013-07-10 13:56:10 -07:00
tlb.c sparc: Replace __get_cpu_var uses 2014-08-26 13:45:55 -04:00
tsb.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-next 2014-06-19 07:50:07 -10:00
tsunami.S [PATCH] sparc32: vm_area_struct access for old Sun SPARCs. 2013-07-10 13:56:10 -07:00
ultra.S sparc64: Make PAGE_OFFSET variable. 2013-11-12 15:22:34 -08:00
viking.S [PATCH] sparc32: vm_area_struct access for old Sun SPARCs. 2013-07-10 13:56:10 -07:00