Commit 83ad283f authored by Linus Torvalds's avatar Linus Torvalds
Browse files

Merge tag 'arc-fixes-for-4.4-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc 

Pull ARC architecture fixes from Vineet Gupta:
 "Fixes for:

 - perf interrupts on SMP: Not enabled (at boot) and disabled (at runtime)
 - stack unwinder regression (for modules, ignoring dwarf3)
 - nsim hosed for non default kernel link base builds"

* tag 'arc-fixes-for-4.4-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc:
  ARC: smp: Rename platform hook @init_cpu_smp -> @init_per_cpu
  ARC: rename smp operation init_irq_cpu() to init_per_cpu()
  ARC: dw2 unwind: Ignore CIE version !=1 gracefully instead of bailing
  ARC: dw2 unwind: Reinstante unwinding out of modules
  ARC: [plat-sim] unbork non default CONFIG_LINUX_LINK_BASE
  ARC: intc: Document arc_request_percpu_irq() better
  ARCv2: perf: Ensure perf intr gets enabled on all cores
  ARC: intc: No need to clear IRQ_NOAUTOEN
  ARCv2: intc: Fix random perf irq disabling in SMP setup
  ARC: [axs10x] cap ethernet phy to 100 Mbit/sec
parents 7b612255 575a9d4e

arch/arc/Kconfig

+1 −0
Original line number Diff line number Diff line
@@ -445,6 +445,7 @@ config LINUX_LINK_BASE 
	  However some customers have peripherals mapped at this addr, so

	  Linux needs to be scooted a bit.

	  If you don't know what the above means, leave this setting alone.

	  This needs to match memory start address specified in Device Tree



config HIGHMEM

	bool "High Memory Support"

arch/arc/boot/dts/axs10x_mb.dtsi

+1 −0
Original line number Diff line number Diff line
@@ -46,6 +46,7 @@ 
			snps,pbl = < 32 >;

			clocks = <&apbclk>;

			clock-names = "stmmaceth";

			max-speed = <100>;

		};



		ehci@0x40000 {

arch/arc/boot/dts/nsim_hs.dts

+2 −1
Original line number Diff line number Diff line
@@ -17,7 +17,8 @@ 


	memory {

		device_type = "memory";

		reg = <0x0 0x80000000 0x0 0x40000000	/* 1 GB low mem */

		/* CONFIG_LINUX_LINK_BASE needs to match low mem start */

		reg = <0x0 0x80000000 0x0 0x20000000	/* 512 MB low mem */

		       0x1 0x00000000 0x0 0x40000000>;	/* 1 GB highmem */

	};

arch/arc/include/asm/mach_desc.h

+2 −2
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@@ -23,7 +23,7 @@ 
 * @dt_compat:		Array of device tree 'compatible' strings

 * 			(XXX: although only 1st entry is looked at)

 * @init_early:		Very early callback [called from setup_arch()]

 * @init_cpu_smp:	for each CPU as it is coming up (SMP as well as UP)

 * @init_per_cpu:	for each CPU as it is coming up (SMP as well as UP)

 * 			[(M):init_IRQ(), (o):start_kernel_secondary()]

 * @init_machine:	arch initcall level callback (e.g. populate static

 * 			platform devices or parse Devicetree)
@@ -35,7 +35,7 @@ struct machine_desc { 
	const char		**dt_compat;

	void			(*init_early)(void);

#ifdef CONFIG_SMP

	void			(*init_cpu_smp)(unsigned int);

	void			(*init_per_cpu)(unsigned int);

#endif

	void			(*init_machine)(void);

	void			(*init_late)(void);

arch/arc/include/asm/smp.h

+2 −2
Original line number Diff line number Diff line
@@ -48,7 +48,7 @@ extern int smp_ipi_irq_setup(int cpu, int irq); 
 * @init_early_smp:	A SMP specific h/w block can init itself

 * 			Could be common across platforms so not covered by

 * 			mach_desc->init_early()

 * @init_irq_cpu:	Called for each core so SMP h/w block driver can do

 * @init_per_cpu:	Called for each core so SMP h/w block driver can do

 * 			any needed setup per cpu (e.g. IPI request)

 * @cpu_kick:		For Master to kickstart a cpu (optionally at a PC)

 * @ipi_send:		To send IPI to a @cpu
@@ -57,7 +57,7 @@ extern int smp_ipi_irq_setup(int cpu, int irq); 
struct plat_smp_ops {

	const char 	*info;

	void		(*init_early_smp)(void);

	void		(*init_irq_cpu)(int cpu);

	void		(*init_per_cpu)(int cpu);

	void		(*cpu_kick)(int cpu, unsigned long pc);

	void		(*ipi_send)(int cpu);

	void		(*ipi_clear)(int irq);

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