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Commit 3d15b798 authored by Linus Torvalds's avatar Linus Torvalds
Browse files

Merge tag 'arm64-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/cmarinas/linux-aarch64 

Pull arm64 update from Catalin Marinas:

 - Since drivers/irqchip/irq-gic.c no longer has dependencies on arm32
   specifics (the 'gic' branch merged), it can be enabled on arm64.

 - Enable arm64 support for poweroff/restart (for code under
   drivers/power/reset/).

 - Fixes (dts file, exception handling, bitops)

* tag 'arm64-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/cmarinas/linux-aarch64:
  arm64: Treat the bitops index argument as an 'int'
  arm64: Ignore the 'write' ESR flag on cache maintenance faults
  arm64: dts: fix #address-cells for foundation-v8
  arm64: vexpress: Add support for poweroff/restart
  arm64: Enable support for the ARM GIC interrupt controller
parents 942d33da 420c158d

arch/arm64/Kconfig

+4 −0
Original line number Diff line number Diff line
@@ -6,6 +6,7 @@ config ARM64 
	select ARCH_WANT_FRAME_POINTERS

	select ARM_AMBA

	select ARM_ARCH_TIMER

	select ARM_GIC

	select CLONE_BACKWARDS

	select COMMON_CLK

	select GENERIC_CLOCKEVENTS
@@ -31,6 +32,8 @@ config ARM64 
	select OF

	select OF_EARLY_FLATTREE

	select PERF_USE_VMALLOC

	select POWER_RESET

	select POWER_SUPPLY

	select RTC_LIB

	select SPARSE_IRQ

	select SYSCTL_EXCEPTION_TRACE
@@ -105,6 +108,7 @@ config ARCH_VEXPRESS 
	bool "ARMv8 software model (Versatile Express)"

	select ARCH_REQUIRE_GPIOLIB

	select COMMON_CLK_VERSATILE

	select POWER_RESET_VEXPRESS

	select VEXPRESS_CONFIG

	help

	  This enables support for the ARMv8 software model (Versatile

arch/arm64/boot/dts/foundation-v8.dts

+1 −1
Original line number Diff line number Diff line
@@ -23,7 +23,7 @@ 
	};



	cpus {

		#address-cells = <1>;

		#address-cells = <2>;

		#size-cells = <0>;



		cpu@0 {

arch/arm64/include/asm/system_misc.h

+1 −1
Original line number Diff line number Diff line
@@ -41,7 +41,7 @@ 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 (*pm_restart)(const char *cmd);

extern void (*arm_pm_restart)(char str, const char *cmd);



#define UDBG_UNDEFINED	(1 << 0)

#define UDBG_SYSCALL	(1 << 1)

arch/arm64/kernel/process.c

+4 −4
Original line number Diff line number Diff line
@@ -81,8 +81,8 @@ void soft_restart(unsigned long addr) 
void (*pm_power_off)(void);

EXPORT_SYMBOL_GPL(pm_power_off);



void (*pm_restart)(const char *cmd);

EXPORT_SYMBOL_GPL(pm_restart);

void (*arm_pm_restart)(char str, const char *cmd);

EXPORT_SYMBOL_GPL(arm_pm_restart);



void arch_cpu_idle_prepare(void)

{
@@ -131,8 +131,8 @@ void machine_restart(char *cmd) 
	local_fiq_disable();



	/* Now call the architecture specific reboot code. */

	if (pm_restart)

		pm_restart(cmd);

	if (arm_pm_restart)

		arm_pm_restart('h', cmd);



	/*

	 * Whoops - the architecture was unable to reboot.

arch/arm64/lib/bitops.S

+5 −5
Original line number Diff line number Diff line
@@ -21,13 +21,13 @@ 


/*

 * x0: bits 5:0  bit offset

 *     bits 63:6 word offset

 *     bits 31:6 word offset

 * x1: address

 */

	.macro	bitop, name, instr

ENTRY(	\name	)

	and	x3, x0, #63		// Get bit offset

	eor	x0, x0, x3		// Clear low bits

	and	w3, w0, #63		// Get bit offset

	eor	w0, w0, w3		// Clear low bits

	mov	x2, #1

	add	x1, x1, x0, lsr #3	// Get word offset

	lsl	x3, x2, x3		// Create mask
@@ -41,8 +41,8 @@ ENDPROC(\name ) 


	.macro	testop, name, instr

ENTRY(	\name	)

	and	x3, x0, #63		// Get bit offset

	eor	x0, x0, x3		// Clear low bits

	and	w3, w0, #63		// Get bit offset

	eor	w0, w0, w3		// Clear low bits

	mov	x2, #1

	add	x1, x1, x0, lsr #3	// Get word offset

	lsl	x4, x2, x3		// Create mask