Merge branch 'for-linus' of git://git.linaro.org/people/rmk/linux-arm

Pull more ARM updates from Russell King.

This got a fair number of conflicts with the <asm/system.h> split, but
also with some other sparse-irq and header file include cleanups.  They
all looked pretty trivial, though.

* 'for-linus' of git://git.linaro.org/people/rmk/linux-arm: (59 commits)
  ARM: fix Kconfig warning for HAVE_BPF_JIT
  ARM: 7361/1: provide XIP_VIRT_ADDR for no-MMU builds
  ARM: 7349/1: integrator: convert to sparse irqs
  ARM: 7259/3: net: JIT compiler for packet filters
  ARM: 7334/1: add jump label support
  ARM: 7333/2: jump label: detect %c support for ARM
  ARM: 7338/1: add support for early console output via semihosting
  ARM: use set_current_blocked() and block_sigmask()
  ARM: exec: remove redundant set_fs(USER_DS)
  ARM: 7332/1: extract out code patch function from kprobes
  ARM: 7331/1: extract out insn generation code from ftrace
  ARM: 7330/1: ftrace: use canonical Thumb-2 wide instruction format
  ARM: 7351/1: ftrace: remove useless memory checks
  ARM: 7316/1: kexec: EOI active and mask all interrupts in kexec crash path
  ARM: Versatile Express: add NO_IOPORT
  ARM: get rid of asm/irq.h in asm/prom.h
  ARM: 7319/1: Print debug info for SIGBUS in user faults
  ARM: 7318/1: gic: refactor irq_start assignment
  ARM: 7317/1: irq: avoid NULL check in for_each_irq_desc loop
  ARM: 7315/1: perf: add support for the Cortex-A7 PMU
  ...

1 files changed, 25 insertions, 1 deletions

diff --git a/arch/arm/mm/mm.h b/arch/arm/mm/mm.h
index 70f6d3ea4834..27f4a619b35d 100644
--- a/arch/arm/mm/mm.h
+++ b/arch/arm/mm/mm.h
@@ -3,7 +3,31 @@
 /* the upper-most page table pointer */
 extern pmd_t *top_pmd;
 
-#define TOP_PTE(x)	pte_offset_kernel(top_pmd, x)
+/*
+ * 0xffff8000 to 0xffffffff is reserved for any ARM architecture
+ * specific hacks for copying pages efficiently, while 0xffff4000
+ * is reserved for VIPT aliasing flushing by generic code.
+ *
+ * Note that we don't allow VIPT aliasing caches with SMP.
+ */
+#define COPYPAGE_MINICACHE	0xffff8000
+#define COPYPAGE_V6_FROM	0xffff8000
+#define COPYPAGE_V6_TO		0xffffc000
+/* PFN alias flushing, for VIPT caches */
+#define FLUSH_ALIAS_START	0xffff4000
+
+static inline void set_top_pte(unsigned long va, pte_t pte)
+{
+	pte_t *ptep = pte_offset_kernel(top_pmd, va);
+	set_pte_ext(ptep, pte, 0);
+	local_flush_tlb_kernel_page(va);
+}
+
+static inline pte_t get_top_pte(unsigned long va)
+{
+	pte_t *ptep = pte_offset_kernel(top_pmd, va);
+	return *ptep;
+}
 
 static inline pmd_t *pmd_off_k(unsigned long virt)
 {