Merge branch 'for-linus-2' of git://git.linaro.org/people/rmk/linux-arm

Pull ARM updates (part two) from Russell King:

 - breakpoint and perf updates from Will Deacon.

 - hypervisor boot mode updates from Will.

 - support for Power State Coordination Interface via the Hypervisor

 - core ARM support for KVM

* 'for-linus-2' of git://git.linaro.org/people/rmk/linux-arm: (32 commits)
  KVM: ARM: Add maintainer entry for KVM/ARM
  KVM: ARM: Power State Coordination Interface implementation
  KVM: ARM: Handle I/O aborts
  KVM: ARM: Handle guest faults in KVM
  KVM: ARM: VFP userspace interface
  KVM: ARM: Demux CCSIDR in the userspace API
  KVM: ARM: User space API for getting/setting co-proc registers
  KVM: ARM: Emulation framework and CP15 emulation
  KVM: ARM: World-switch implementation
  KVM: ARM: Inject IRQs and FIQs from userspace
  KVM: ARM: Memory virtualization setup
  KVM: ARM: Hypervisor initialization
  KVM: ARM: Initial skeleton to compile KVM support
  ARM: Section based HYP idmap
  ARM: Add page table and page defines needed by KVM
  ARM: perf: simplify __hw_perf_event_init err handling
  ARM: perf: remove unnecessary checks for idx < 0
  ARM: perf: handle armpmu_register failing
  ARM: perf: don't pretend to support counting of L1I writes
  ARM: perf: remove redundant NULL check on cpu_pmu
  ...

1 files changed, 22 insertions, 0 deletions

diff --git a/arch/arm/mm/mmu.c b/arch/arm/mm/mmu.c
index 69bb735474fe..e95a996ab78f 100644
--- a/arch/arm/mm/mmu.c
+++ b/arch/arm/mm/mmu.c
@@ -57,6 +57,9 @@ static unsigned int cachepolicy __initdata = CPOLICY_WRITEBACK;
 static unsigned int ecc_mask __initdata = 0;
 pgprot_t pgprot_user;
 pgprot_t pgprot_kernel;
+pgprot_t pgprot_hyp_device;
+pgprot_t pgprot_s2;
+pgprot_t pgprot_s2_device;
 
 EXPORT_SYMBOL(pgprot_user);
 EXPORT_SYMBOL(pgprot_kernel);
@@ -66,34 +69,46 @@ struct cachepolicy {
 	unsigned int	cr_mask;
 	pmdval_t	pmd;
 	pteval_t	pte;
+	pteval_t	pte_s2;
 };
 
+#ifdef CONFIG_ARM_LPAE
+#define s2_policy(policy)	policy
+#else
+#define s2_policy(policy)	0
+#endif
+
 static struct cachepolicy cache_policies[] __initdata = {
 	{
 		.policy		= "uncached",
 		.cr_mask	= CR_W|CR_C,
 		.pmd		= PMD_SECT_UNCACHED,
 		.pte		= L_PTE_MT_UNCACHED,
+		.pte_s2		= s2_policy(L_PTE_S2_MT_UNCACHED),
 	}, {
 		.policy		= "buffered",
 		.cr_mask	= CR_C,
 		.pmd		= PMD_SECT_BUFFERED,
 		.pte		= L_PTE_MT_BUFFERABLE,
+		.pte_s2		= s2_policy(L_PTE_S2_MT_UNCACHED),
 	}, {
 		.policy		= "writethrough",
 		.cr_mask	= 0,
 		.pmd		= PMD_SECT_WT,
 		.pte		= L_PTE_MT_WRITETHROUGH,
+		.pte_s2		= s2_policy(L_PTE_S2_MT_WRITETHROUGH),
 	}, {
 		.policy		= "writeback",
 		.cr_mask	= 0,
 		.pmd		= PMD_SECT_WB,
 		.pte		= L_PTE_MT_WRITEBACK,
+		.pte_s2		= s2_policy(L_PTE_S2_MT_WRITEBACK),
 	}, {
 		.policy		= "writealloc",
 		.cr_mask	= 0,
 		.pmd		= PMD_SECT_WBWA,
 		.pte		= L_PTE_MT_WRITEALLOC,
+		.pte_s2		= s2_policy(L_PTE_S2_MT_WRITEBACK),
 	}
 };
 
@@ -310,6 +325,7 @@ static void __init build_mem_type_table(void)
 	struct cachepolicy *cp;
 	unsigned int cr = get_cr();
 	pteval_t user_pgprot, kern_pgprot, vecs_pgprot;
+	pteval_t hyp_device_pgprot, s2_pgprot, s2_device_pgprot;
 	int cpu_arch = cpu_architecture();
 	int i;
 
@@ -421,6 +437,8 @@ static void __init build_mem_type_table(void)
 	 */
 	cp = &cache_policies[cachepolicy];
 	vecs_pgprot = kern_pgprot = user_pgprot = cp->pte;
+	s2_pgprot = cp->pte_s2;
+	hyp_device_pgprot = s2_device_pgprot = mem_types[MT_DEVICE].prot_pte;
 
 	/*
 	 * ARMv6 and above have extended page tables.
@@ -444,6 +462,7 @@ static void __init build_mem_type_table(void)
 			user_pgprot |= L_PTE_SHARED;
 			kern_pgprot |= L_PTE_SHARED;
 			vecs_pgprot |= L_PTE_SHARED;
+			s2_pgprot |= L_PTE_SHARED;
 			mem_types[MT_DEVICE_WC].prot_sect |= PMD_SECT_S;
 			mem_types[MT_DEVICE_WC].prot_pte |= L_PTE_SHARED;
 			mem_types[MT_DEVICE_CACHED].prot_sect |= PMD_SECT_S;
@@ -498,6 +517,9 @@ static void __init build_mem_type_table(void)
 	pgprot_user   = __pgprot(L_PTE_PRESENT | L_PTE_YOUNG | user_pgprot);
 	pgprot_kernel = __pgprot(L_PTE_PRESENT | L_PTE_YOUNG |
 				 L_PTE_DIRTY | kern_pgprot);
+	pgprot_s2  = __pgprot(L_PTE_PRESENT | L_PTE_YOUNG | s2_pgprot);
+	pgprot_s2_device  = __pgprot(s2_device_pgprot);
+	pgprot_hyp_device  = __pgprot(hyp_device_pgprot);
 
 	mem_types[MT_LOW_VECTORS].prot_l1 |= ecc_mask;
 	mem_types[MT_HIGH_VECTORS].prot_l1 |= ecc_mask;