Merge tag 'asoc-v3.12' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-next

ASoC: Updates for v3.12

- DAPM is now mandatory for CODEC drivers in order to avoid the repeated
  regressions in the special cases for non-DAPM CODECs and make it
  easier to integrate with other components on boards.  All existing
  drivers have had some level of DAPM support added.
- A lot of cleanups in DAPM plus support for maintaining controls in a
  specific state while a DAPM widget all contributed by Lars-Peter Clausen.
- Core helpers for bitbanged AC'97 reset from Markus Pargmann.
- New drivers and support for Analog Devices ADAU1702 and ADAU1401(a),
  Asahi Kasei Microdevices AK4554, Atmel AT91ASM9x5 and WM8904 based
  machines, Freescale S/PDIF and SSI AC'97, Renesas R-Car SoCs, Samsung
  Exynos5420 SoCs, Texas Instruments PCM1681 and PCM1792A and Wolfson
  Microelectronics WM8997.
- Support for building drivers that can support it cross-platform for
  compile test.

12 files changed, 63 insertions, 58 deletions

diff --git a/arch/arm64/include/asm/arch_timer.h b/arch/arm64/include/asm/arch_timer.h
index d56ed11ba9a3..98abd476992d 100644
--- a/arch/arm64/include/asm/arch_timer.h
+++ b/arch/arm64/include/asm/arch_timer.h
@@ -97,7 +97,7 @@ static inline u32 arch_timer_get_cntfrq(void)
 	return val;
 }
 
-static inline void __cpuinit arch_counter_set_user_access(void)
+static inline void arch_counter_set_user_access(void)
 {
 	u32 cntkctl;
 
diff --git a/arch/arm64/include/asm/debug-monitors.h b/arch/arm64/include/asm/debug-monitors.h
index ef8235c68c09..a2232d07be9d 100644
--- a/arch/arm64/include/asm/debug-monitors.h
+++ b/arch/arm64/include/asm/debug-monitors.h
@@ -83,14 +83,7 @@ static inline int reinstall_suspended_bps(struct pt_regs *regs)
 }
 #endif
 
-#ifdef CONFIG_COMPAT
 int aarch32_break_handler(struct pt_regs *regs);
-#else
-static int aarch32_break_handler(struct pt_regs *regs)
-{
-	return -EFAULT;
-}
-#endif
 
 #endif	/* __ASSEMBLY */
 #endif	/* __KERNEL__ */
diff --git a/arch/arm64/include/asm/system_misc.h b/arch/arm64/include/asm/system_misc.h
index a6e1750369ef..7a18fabbe0f6 100644
--- a/arch/arm64/include/asm/system_misc.h
+++ b/arch/arm64/include/asm/system_misc.h
@@ -23,6 +23,7 @@
 #include <linux/compiler.h>
 #include <linux/linkage.h>
 #include <linux/irqflags.h>
+#include <linux/reboot.h>
 
 struct pt_regs;
 
@@ -41,7 +42,7 @@ extern void show_pte(struct mm_struct *mm, unsigned long addr);
 extern void __show_regs(struct pt_regs *);
 
 void soft_restart(unsigned long);
-extern void (*arm_pm_restart)(char str, const char *cmd);
+extern void (*arm_pm_restart)(enum reboot_mode reboot_mode, const char *cmd);
 
 #define UDBG_UNDEFINED	(1 << 0)
 #define UDBG_SYSCALL	(1 << 1)
diff --git a/arch/arm64/include/asm/thread_info.h b/arch/arm64/include/asm/thread_info.h
index 3659e460071d..23a3c4791d86 100644
--- a/arch/arm64/include/asm/thread_info.h
+++ b/arch/arm64/include/asm/thread_info.h
@@ -24,10 +24,10 @@
 #include <linux/compiler.h>
 
 #ifndef CONFIG_ARM64_64K_PAGES
-#define THREAD_SIZE_ORDER	1
+#define THREAD_SIZE_ORDER	2
 #endif
 
-#define THREAD_SIZE		8192
+#define THREAD_SIZE		16384
 #define THREAD_START_SP		(THREAD_SIZE - 16)
 
 #ifndef __ASSEMBLY__
diff --git a/arch/arm64/include/asm/tlb.h b/arch/arm64/include/asm/tlb.h
index 46b3beb4b773..717031a762c2 100644
--- a/arch/arm64/include/asm/tlb.h
+++ b/arch/arm64/include/asm/tlb.h
@@ -35,6 +35,7 @@ struct mmu_gather {
 	struct mm_struct	*mm;
 	unsigned int		fullmm;
 	struct vm_area_struct	*vma;
+	unsigned long		start, end;
 	unsigned long		range_start;
 	unsigned long		range_end;
 	unsigned int		nr;
@@ -97,10 +98,12 @@ static inline void tlb_flush_mmu(struct mmu_gather *tlb)
 }
 
 static inline void
-tlb_gather_mmu(struct mmu_gather *tlb, struct mm_struct *mm, unsigned int fullmm)
+tlb_gather_mmu(struct mmu_gather *tlb, struct mm_struct *mm, unsigned long start, unsigned long end)
 {
 	tlb->mm = mm;
-	tlb->fullmm = fullmm;
+	tlb->fullmm = !(start | (end+1));
+	tlb->start = start;
+	tlb->end = end;
 	tlb->vma = NULL;
 	tlb->max = ARRAY_SIZE(tlb->local);
 	tlb->pages = tlb->local;
diff --git a/arch/arm64/include/asm/virt.h b/arch/arm64/include/asm/virt.h
index 439827271e3d..26e310c54344 100644
--- a/arch/arm64/include/asm/virt.h
+++ b/arch/arm64/include/asm/virt.h
@@ -21,6 +21,7 @@
 #define BOOT_CPU_MODE_EL2	(0x0e12b007)
 
 #ifndef __ASSEMBLY__
+#include <asm/cacheflush.h>
 
 /*
  * __boot_cpu_mode records what mode CPUs were booted in.
@@ -36,9 +37,20 @@ extern u32 __boot_cpu_mode[2];
 void __hyp_set_vectors(phys_addr_t phys_vector_base);
 phys_addr_t __hyp_get_vectors(void);
 
+static inline void sync_boot_mode(void)
+{
+	/*
+	 * As secondaries write to __boot_cpu_mode with caches disabled, we
+	 * must flush the corresponding cache entries to ensure the visibility
+	 * of their writes.
+	 */
+	__flush_dcache_area(__boot_cpu_mode, sizeof(__boot_cpu_mode));
+}
+
 /* Reports the availability of HYP mode */
 static inline bool is_hyp_mode_available(void)
 {
+	sync_boot_mode();
 	return (__boot_cpu_mode[0] == BOOT_CPU_MODE_EL2 &&
 		__boot_cpu_mode[1] == BOOT_CPU_MODE_EL2);
 }
@@ -46,6 +58,7 @@ static inline bool is_hyp_mode_available(void)
 /* Check if the bootloader has booted CPUs in different modes */
 static inline bool is_hyp_mode_mismatched(void)
 {
+	sync_boot_mode();
 	return __boot_cpu_mode[0] != __boot_cpu_mode[1];
 }
 
diff --git a/arch/arm64/kernel/debug-monitors.c b/arch/arm64/kernel/debug-monitors.c
index 08018e3df580..cbfacf7fb438 100644
--- a/arch/arm64/kernel/debug-monitors.c
+++ b/arch/arm64/kernel/debug-monitors.c
@@ -141,7 +141,7 @@ static void clear_os_lock(void *unused)
 	isb();
 }
 
-static int __cpuinit os_lock_notify(struct notifier_block *self,
+static int os_lock_notify(struct notifier_block *self,
 				    unsigned long action, void *data)
 {
 	int cpu = (unsigned long)data;
@@ -150,11 +150,11 @@ static int __cpuinit os_lock_notify(struct notifier_block *self,
 	return NOTIFY_OK;
 }
 
-static struct notifier_block __cpuinitdata os_lock_nb = {
+static struct notifier_block os_lock_nb = {
 	.notifier_call = os_lock_notify,
 };
 
-static int __cpuinit debug_monitors_init(void)
+static int debug_monitors_init(void)
 {
 	/* Clear the OS lock. */
 	smp_call_function(clear_os_lock, NULL, 1);
diff --git a/arch/arm64/kernel/entry.S b/arch/arm64/kernel/entry.S
index 1d1314280a03..6ad781b21c08 100644
--- a/arch/arm64/kernel/entry.S
+++ b/arch/arm64/kernel/entry.S
@@ -121,7 +121,7 @@
 
 	.macro	get_thread_info, rd
 	mov	\rd, sp
-	and	\rd, \rd, #~((1 << 13) - 1)	// top of 8K stack
+	and	\rd, \rd, #~(THREAD_SIZE - 1)	// top of stack
 	.endm
 
 /*
diff --git a/arch/arm64/kernel/hw_breakpoint.c b/arch/arm64/kernel/hw_breakpoint.c
index 5ab825c59db9..329218ca9ffb 100644
--- a/arch/arm64/kernel/hw_breakpoint.c
+++ b/arch/arm64/kernel/hw_breakpoint.c
@@ -821,7 +821,7 @@ static void reset_ctrl_regs(void *unused)
 	}
 }
 
-static int __cpuinit hw_breakpoint_reset_notify(struct notifier_block *self,
+static int hw_breakpoint_reset_notify(struct notifier_block *self,
 						unsigned long action,
 						void *hcpu)
 {
@@ -831,7 +831,7 @@ static int __cpuinit hw_breakpoint_reset_notify(struct notifier_block *self,
 	return NOTIFY_OK;
 }
 
-static struct notifier_block __cpuinitdata hw_breakpoint_reset_nb = {
+static struct notifier_block hw_breakpoint_reset_nb = {
 	.notifier_call = hw_breakpoint_reset_notify,
 };
 
diff --git a/arch/arm64/kernel/process.c b/arch/arm64/kernel/process.c
index 46f02c3b5015..57fb55c44c90 100644
--- a/arch/arm64/kernel/process.c
+++ b/arch/arm64/kernel/process.c
@@ -81,7 +81,7 @@ void soft_restart(unsigned long addr)
 void (*pm_power_off)(void);
 EXPORT_SYMBOL_GPL(pm_power_off);
 
-void (*arm_pm_restart)(char str, const char *cmd);
+void (*arm_pm_restart)(enum reboot_mode reboot_mode, const char *cmd);
 EXPORT_SYMBOL_GPL(arm_pm_restart);
 
 void arch_cpu_idle_prepare(void)
@@ -132,7 +132,7 @@ void machine_restart(char *cmd)
 
 	/* Now call the architecture specific reboot code. */
 	if (arm_pm_restart)
-		arm_pm_restart('h', cmd);
+		arm_pm_restart(reboot_mode, cmd);
 
 	/*
 	 * Whoops - the architecture was unable to reboot.
diff --git a/arch/arm64/kernel/smp.c b/arch/arm64/kernel/smp.c
index 5d54e3717bf8..fee5cce83450 100644
--- a/arch/arm64/kernel/smp.c
+++ b/arch/arm64/kernel/smp.c
@@ -71,7 +71,7 @@ static DEFINE_RAW_SPINLOCK(boot_lock);
  * in coherency or not.  This is necessary for the hotplug code to work
  * reliably.
  */
-static void __cpuinit write_pen_release(u64 val)
+static void write_pen_release(u64 val)
 {
 	void *start = (void *)&secondary_holding_pen_release;
 	unsigned long size = sizeof(secondary_holding_pen_release);
@@ -84,7 +84,7 @@ static void __cpuinit write_pen_release(u64 val)
  * Boot a secondary CPU, and assign it the specified idle task.
  * This also gives us the initial stack to use for this CPU.
  */
-static int __cpuinit boot_secondary(unsigned int cpu, struct task_struct *idle)
+static int boot_secondary(unsigned int cpu, struct task_struct *idle)
 {
 	unsigned long timeout;
 
@@ -122,7 +122,7 @@ static int __cpuinit boot_secondary(unsigned int cpu, struct task_struct *idle)
 
 static DECLARE_COMPLETION(cpu_running);
 
-int __cpuinit __cpu_up(unsigned int cpu, struct task_struct *idle)
+int __cpu_up(unsigned int cpu, struct task_struct *idle)
 {
 	int ret;
 
@@ -162,7 +162,7 @@ int __cpuinit __cpu_up(unsigned int cpu, struct task_struct *idle)
  * This is the secondary CPU boot entry.  We're using this CPUs
  * idle thread stack, but a set of temporary page tables.
  */
-asmlinkage void __cpuinit secondary_start_kernel(void)
+asmlinkage void secondary_start_kernel(void)
 {
 	struct mm_struct *mm = &init_mm;
 	unsigned int cpu = smp_processor_id();
@@ -200,13 +200,6 @@ asmlinkage void __cpuinit secondary_start_kernel(void)
 	raw_spin_unlock(&boot_lock);
 
 	/*
-	 * Enable local interrupts.
-	 */
-	notify_cpu_starting(cpu);
-	local_irq_enable();
-	local_fiq_enable();
-
-	/*
 	 * OK, now it's safe to let the boot CPU continue.  Wait for
 	 * the CPU migration code to notice that the CPU is online
 	 * before we continue.
@@ -215,6 +208,14 @@ asmlinkage void __cpuinit secondary_start_kernel(void)
 	complete(&cpu_running);
 
 	/*
+	 * Enable GIC and timers.
+	 */
+	notify_cpu_starting(cpu);
+
+	local_irq_enable();
+	local_fiq_enable();
+
+	/*
 	 * OK, it's off to the idle thread for us
 	 */
 	cpu_startup_entry(CPUHP_ONLINE);
diff --git a/arch/arm64/mm/fault.c b/arch/arm64/mm/fault.c
index 0ecac8980aae..6c8ba25bf6bb 100644
--- a/arch/arm64/mm/fault.c
+++ b/arch/arm64/mm/fault.c
@@ -152,25 +152,8 @@ void do_bad_area(unsigned long addr, unsigned int esr, struct pt_regs *regs)
 #define ESR_CM			(1 << 8)
 #define ESR_LNX_EXEC		(1 << 24)
 
-/*
- * Check that the permissions on the VMA allow for the fault which occurred.
- * If we encountered a write fault, we must have write permission, otherwise
- * we allow any permission.
- */
-static inline bool access_error(unsigned int esr, struct vm_area_struct *vma)
-{
-	unsigned int mask = VM_READ | VM_WRITE | VM_EXEC;
-
-	if (esr & ESR_WRITE)
-		mask = VM_WRITE;
-	if (esr & ESR_LNX_EXEC)
-		mask = VM_EXEC;
-
-	return vma->vm_flags & mask ? false : true;
-}
-
 static int __do_page_fault(struct mm_struct *mm, unsigned long addr,
-			   unsigned int esr, unsigned int flags,
+			   unsigned int mm_flags, unsigned long vm_flags,
 			   struct task_struct *tsk)
 {
 	struct vm_area_struct *vma;
@@ -188,12 +171,17 @@ static int __do_page_fault(struct mm_struct *mm, unsigned long addr,
 	 * it.
 	 */
 good_area:
-	if (access_error(esr, vma)) {
+	/*
+	 * Check that the permissions on the VMA allow for the fault which
+	 * occurred. If we encountered a write or exec fault, we must have
+	 * appropriate permissions, otherwise we allow any permission.
+	 */
+	if (!(vma->vm_flags & vm_flags)) {
 		fault = VM_FAULT_BADACCESS;
 		goto out;
 	}
 
-	return handle_mm_fault(mm, vma, addr & PAGE_MASK, flags);
+	return handle_mm_fault(mm, vma, addr & PAGE_MASK, mm_flags);
 
 check_stack:
 	if (vma->vm_flags & VM_GROWSDOWN && !expand_stack(vma, addr))
@@ -208,9 +196,15 @@ static int __kprobes do_page_fault(unsigned long addr, unsigned int esr,
 	struct task_struct *tsk;
 	struct mm_struct *mm;
 	int fault, sig, code;
-	bool write = (esr & ESR_WRITE) && !(esr & ESR_CM);
-	unsigned int flags = FAULT_FLAG_ALLOW_RETRY | FAULT_FLAG_KILLABLE |
-		(write ? FAULT_FLAG_WRITE : 0);
+	unsigned long vm_flags = VM_READ | VM_WRITE | VM_EXEC;
+	unsigned int mm_flags = FAULT_FLAG_ALLOW_RETRY | FAULT_FLAG_KILLABLE;
+
+	if (esr & ESR_LNX_EXEC) {
+		vm_flags = VM_EXEC;
+	} else if ((esr & ESR_WRITE) && !(esr & ESR_CM)) {
+		vm_flags = VM_WRITE;
+		mm_flags |= FAULT_FLAG_WRITE;
+	}
 
 	tsk = current;
 	mm  = tsk->mm;
@@ -248,7 +242,7 @@ retry:
 #endif
 	}
 
-	fault = __do_page_fault(mm, addr, esr, flags, tsk);
+	fault = __do_page_fault(mm, addr, mm_flags, vm_flags, tsk);
 
 	/*
 	 * If we need to retry but a fatal signal is pending, handle the
@@ -265,7 +259,7 @@ retry:
 	 */
 
 	perf_sw_event(PERF_COUNT_SW_PAGE_FAULTS, 1, regs, addr);
-	if (flags & FAULT_FLAG_ALLOW_RETRY) {
+	if (mm_flags & FAULT_FLAG_ALLOW_RETRY) {
 		if (fault & VM_FAULT_MAJOR) {
 			tsk->maj_flt++;
 			perf_sw_event(PERF_COUNT_SW_PAGE_FAULTS_MAJ, 1, regs,
@@ -280,7 +274,7 @@ retry:
 			 * Clear FAULT_FLAG_ALLOW_RETRY to avoid any risk of
 			 * starvation.
 			 */
-			flags &= ~FAULT_FLAG_ALLOW_RETRY;
+			mm_flags &= ~FAULT_FLAG_ALLOW_RETRY;
 			goto retry;
 		}
 	}