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59ccc0d41b
linux/arch/arm64/include/asm
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Mark Rutland 59ccc0d41b arm64: cachetype: report weakest cache policy 
In big.LITTLE systems, the I-cache policy may differ across CPUs, and
thus we must always meet the most stringent maintenance requirements of
any I-cache in the system when performing maintenance to ensure
correctness. Unfortunately this requirement is not met as we always look
at the current CPU's cache type register to determine the maintenance
requirements.

This patch causes the I-cache policy of all CPUs to be taken into
account for icache_is_aliasing and icache_is_aivivt. If any I-cache in
the system is aliasing or AIVIVT, the respective function will return
true. At boot each CPU may set flags to identify that at least one
I-cache in the system is aliasing and/or AIVIVT.

The now unused and potentially misleading icache_policy function is
removed.

Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Acked-by: Will Deacon <will.deacon@arm.com>
Reviewed-by: Will Deacon <will.deacon@arm.com>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2014-07-18 15:24:10 +01:00
..
xen xen/arm64: do not call the swiotlb functions twice 2013-12-11 16:21:00 +00:00
arch_timer.h ARM64: arch_timer: add support to configure and enable event stream 2013-09-26 09:47:43 +01:00
asm-offsets.h
assembler.h arm64: debug: avoid accessing mdscr_el1 on fault paths where possible 2014-05-12 16:43:28 +01:00
atomic.h - Optimised assembly string/memory routines (based on the AArch64 Cortex 2014-06-06 10:43:28 -07:00
barrier.h - Optimised assembly string/memory routines (based on the AArch64 Cortex 2014-06-06 10:43:28 -07:00
bitops.h arch,arm64: Convert smp_mb__*() 2014-04-18 11:40:33 +02:00
cache.h arm64: Implement cache_line_size() based on CTR_EL0.CWG 2014-05-09 15:47:45 +01:00
cacheflush.h arm64: barriers: make use of barrier options with explicit barriers 2014-05-09 17:03:15 +01:00
cachetype.h arm64: cachetype: report weakest cache policy 2014-07-18 15:24:10 +01:00
cmpxchg.h arm64: xchg: prevent warning if return value is unused 2014-05-09 17:00:00 +01:00
compat.h arm64: is_compat_task is defined both in asm/compat.h and linux/compat.h 2014-05-12 16:43:29 +01:00
compiler.h arm64: Miscellaneous header files 2012-09-17 13:42:21 +01:00
cpu_ops.h ARM: Check if a CPU has gone offline 2014-05-15 10:16:30 -04:00
cpu.h arm64: cpuinfo: record cpu system register values 2014-07-18 15:24:09 +01:00
cpufeature.h arm64: enable generic CPU feature modalias matching for this architecture 2014-03-14 18:01:36 +00:00
cputable.h arm64: CPU support 2012-09-17 13:41:59 +01:00
cputype.h arm64: add MIDR_EL1 field accessors 2014-07-18 15:24:08 +01:00
debug-monitors.h arm64: KGDB: Add Basic KGDB support 2014-02-26 11:16:25 +00:00
device.h arm64: device: add iommu pointer to device archdata 2013-06-11 18:15:55 +01:00
dma-contiguous.h arm64: fix build error if DMA_CMA is enabled 2014-01-27 12:00:25 +00:00
dma-mapping.h arm64/dma: Removing ARCH_HAS_DMA_GET_REQUIRED_MASK macro 2014-06-18 12:41:30 +01:00
efi.h arm64: add EFI runtime services 2014-04-30 19:49:59 +01:00
elf.h arm64: compat: add support for big-endian (BE8) AArch32 binaries 2013-10-25 15:59:35 +01:00
esr.h arm64: Provide read/write fault information in compat signal handlers 2014-05-09 15:47:47 +01:00
exception.h arm64: Use irqchip_init() for interrupt controller initialisation 2013-03-26 16:02:23 +00:00
exec.h arm64: Miscellaneous header files 2012-09-17 13:42:21 +01:00
fb.h arm64: Device specific operations 2012-09-17 13:42:04 +01:00
fixmap.h arm64: add early_ioremap support 2014-04-07 16:36:15 -07:00
fpsimd.h arm64: add support for kernel mode NEON in interrupt context 2014-05-08 11:31:57 +02:00
fpsimdmacros.h arm64: fpsimd: avoid restoring fpcr if the contents haven't changed 2014-07-18 10:21:17 +01:00
ftrace.h arm64: ftrace: Add system call tracepoint 2014-05-29 09:08:33 +01:00
futex.h arm64: asm: remove redundant "cc" clobbers 2014-02-07 16:46:07 +00:00
hardirq.h arm64: Support arch_irq_work_raise() via self IPIs 2014-05-16 17:42:21 +01:00
hugetlb.h ARM64: mm: HugeTLB support. 2013-06-14 09:52:40 +01:00
hw_breakpoint.h arm64: Debugging support 2012-09-17 13:42:14 +01:00
hwcap.h arm64: advertise ARMv8 extensions to 32-bit compat ELF binaries 2014-03-04 08:06:32 +00:00
hypervisor.h arm64/xen: introduce asm/xen header files on arm64 2013-06-07 10:39:45 +00:00
insn.h arm64: add __ASSEMBLY__ in asm/insn.h 2014-05-29 09:04:31 +01:00
io.h arm64: Clean up the default pgprot setting 2014-05-09 15:53:37 +01:00
irq.h arm64: add CPU_HOTPLUG infrastructure 2013-10-25 11:33:21 +01:00
irqflags.h arm64: Add macros to manage processor debug state 2014-02-26 11:16:25 +00:00
jump_label.h arm64, jump label: optimize jump label implementation 2014-01-08 15:23:53 +00:00
Kbuild arm64: uid16: fix __kernel_old_{gid,uid}_t definitions 2014-06-18 12:41:09 +01:00
kgdb.h arm64: KGDB: Add Basic KGDB support 2014-02-26 11:16:25 +00:00
kvm_arm.h Merge tag 'kvm-3.15-1' of git://git.kernel.org/pub/scm/virt/kvm/kvm 2014-04-02 14:50:10 -07:00
kvm_asm.h arm64: KVM: trap VM system registers until MMU and caches are ON 2014-03-03 01:15:21 +00:00
kvm_coproc.h arm64: KVM: 32bit handling of coprocessor traps 2013-06-12 16:42:16 +01:00
kvm_emulate.h A handful of fixes for KVM/arm64: 2013-11-11 12:05:20 +01:00
kvm_host.h ARM/ARM64: KVM: Add base for PSCI v0.2 emulation 2014-04-30 04:18:57 -07:00
kvm_mmio.h arm64: KVM: MMIO access backend 2013-06-07 14:03:38 +01:00
kvm_mmu.h arm64: KVM: flush VM pages before letting the guest enable caches 2014-03-03 01:15:22 +00:00
kvm_psci.h ARM/ARM64: KVM: Make kvm_psci_call() return convention more flexible 2014-04-30 04:18:57 -07:00
linkage.h arm64: fix alignment padding in assembly code 2012-10-20 11:12:01 +01:00
memblock.h arm64: MMU initialisation 2012-09-17 13:41:56 +01:00
memory.h Xen bug fixes for 3.15-rc5 2014-05-13 11:21:01 +09:00
mmu_context.h arm64: mm: don't bother invalidating the icache in switch_mm 2013-06-07 18:00:11 +01:00
mmu.h Merge branch 'arm64-efi-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip into next 2014-06-05 13:15:32 -07:00
module.h arm64: Loadable modules 2012-09-17 13:42:19 +01:00
neon.h arm64: add support for kernel mode NEON in interrupt context 2014-05-08 11:31:57 +02:00
page.h arm64: place initial page tables above the kernel 2014-07-10 12:36:12 +01:00
percpu.h arm64: Fix !CONFIG_SMP kernel build 2014-02-28 16:12:25 +00:00
perf_event.h arm64: perf: add guest vs host discrimination 2013-01-29 16:56:17 +00:00
pgalloc.h arm64: handle pgtable_page_ctor() fail 2013-11-15 09:32:16 +09:00
pgtable-2level-hwdef.h arm64: Use 42-bit address space with 64K pages 2013-11-05 17:23:52 +00:00
pgtable-2level-types.h ARM64: include: asm: include "asm/types.h" in "pgtable-2level-types.h" and "pgtable-3level-types.h" 2013-08-22 11:44:41 +01:00
pgtable-3level-hwdef.h arm64: MMU definitions 2012-09-17 13:41:56 +01:00
pgtable-3level-types.h ARM64: include: asm: include "asm/types.h" in "pgtable-2level-types.h" and "pgtable-3level-types.h" 2013-08-22 11:44:41 +01:00
pgtable-hwdef.h arm64: mm: Create gigabyte kernel logical mappings where possible 2014-05-09 16:10:58 +01:00
pgtable.h arm64: Remove duplicate (SWAPPER|IDMAP)_DIR_SIZE definitions 2014-07-17 16:02:42 +01:00
pmu.h arm64: Performance counters support 2012-09-17 13:42:17 +01:00
proc-fns.h arm64: kernel: suspend/resume registers save/restore 2013-12-16 17:17:31 +00:00
processor.h arm64: Cast KSTK_(EIP|ESP) to unsigned long 2014-07-10 11:37:40 +01:00
psci.h PSCI: Add initial support for PSCIv0.2 functions 2014-05-15 10:16:00 -04:00
ptrace.h arm64: fix el2_setup check of CurrentEL 2014-07-04 16:16:52 +01:00
shmparam.h arm64: ELF definitions 2012-09-17 13:42:07 +01:00
signal32.h arm64: 32-bit (compat) applications support 2012-09-17 13:42:12 +01:00
smp_plat.h arm64: kernel: build MPIDR_EL1 hash function data structure 2013-12-16 17:17:30 +00:00
smp.h arm64: add CPU_HOTPLUG infrastructure 2013-10-25 11:33:21 +01:00
sparsemem.h arm64: MMU definitions 2012-09-17 13:41:56 +01:00
spinlock_types.h arm64: Fix the endianness of arch_spinlock_t 2013-10-25 16:10:22 +01:00
spinlock.h arm64: asm: remove redundant "cc" clobbers 2014-02-07 16:46:07 +00:00
stackprotector.h arm64: Add CONFIG_CC_STACKPROTECTOR 2014-07-09 12:23:48 +01:00
stacktrace.h arm64: Exception handling 2012-09-17 10:24:46 +01:00
stat.h UAPI: (Scripted) Disintegrate arch/arm64/include/asm 2012-10-11 11:05:13 +01:00
string.h arm64: lib: Implement optimized string length routines 2014-05-23 15:17:12 +01:00
suspend.h arm64: kernel: cpu_{suspend/resume} implementation 2013-12-16 17:17:31 +00:00
sync_bitops.h arm64/xen: introduce asm/xen header files on arm64 2013-06-07 10:39:45 +00:00
syscall.h arm64: Add audit support 2014-07-10 11:06:00 +01:00
syscalls.h arm64: switch to generic sigaltstack 2013-02-14 09:17:29 -05:00
system_misc.h arm64: use common reboot infrastructure 2013-07-19 15:57:08 +01:00
thread_info.h arm64: enable context tracking 2014-07-10 10:10:21 +01:00
timex.h arm64: kernel: compiling issue, need delete read_current_timer() 2013-06-10 17:58:20 +01:00
tlb.h arm64: mm: Add THP TLB entries to general mmu_gather 2014-04-25 16:46:49 +01:00
tlbflush.h arm64: barriers: make use of barrier options with explicit barriers 2014-05-09 17:03:15 +01:00
topology.h arm64: sched: Remove unused mc_capable() and smt_capable() 2014-05-16 17:12:04 +01:00
traps.h arm64: Exception handling 2012-09-17 10:24:46 +01:00
uaccess.h arm64: Fix __range_ok macro 2014-03-20 17:41:27 +00:00
ucontext.h arm64: fix padding computation in struct ucontext 2013-03-18 10:42:16 +00:00
unistd32.h arm64: Add __NR_* definitions for compat syscalls 2014-07-10 11:02:40 +01:00
unistd.h arm64: Add __NR_* definitions for compat syscalls 2014-07-10 11:02:40 +01:00
vdso_datapage.h arm64: VDSO support 2012-09-17 13:42:09 +01:00
vdso.h arm64: VDSO support 2012-09-17 13:42:09 +01:00
virt.h Revert "arm64: virt: ensure visibility of __boot_cpu_mode" 2014-04-05 10:06:20 +01:00
word-at-a-time.h arm64: dcache: select DCACHE_WORD_ACCESS for little-endian CPUs 2013-12-19 17:43:08 +00:00