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Commit a84d2d29 authored by Linus Torvalds's avatar Linus Torvalds
Browse files

Merge tag 'csky-for-linus-5.3-rc1' of git://github.com/c-sky/csky-linux 

Pull arch/csky pupdates from Guo Ren:
 "This round of csky subsystem gives two features (ASID algorithm
  update, Perf pmu record support) and some fixups.

  ASID updates:
   - Revert mmu ASID mechanism
   - Add new asid lib code from arm
   - Use generic asid algorithm to implement switch_mm
   - Improve tlb operation with help of asid

  Perf pmu record support:
   - Init pmu as a device
   - Add count-width property for csky pmu
   - Add pmu interrupt support
   - Fix perf record in kernel/user space
   - dt-bindings: Add csky PMU bindings

  Fixes:
   - Fixup no panic in kernel for some traps
   - Fixup some error count in 810 & 860.
   - Fixup abiv1 memset error"

* tag 'csky-for-linus-5.3-rc1' of git://github.com/c-sky/csky-linux:
  csky: Fixup abiv1 memset error
  csky: Improve tlb operation with help of asid
  csky: Use generic asid algorithm to implement switch_mm
  csky: Add new asid lib code from arm
  csky: Revert mmu ASID mechanism
  dt-bindings: csky: Add csky PMU bindings
  dt-bindings: interrupt-controller: Update csky mpintc
  csky: Fixup some error count in 810 & 860.
  csky: Fix perf record in kernel/user space
  csky: Add pmu interrupt support
  csky: Add count-width property for csky pmu
  csky: Init pmu as a device
  csky: Fixup no panic in kernel for some traps
  csky: Select intc & timer drivers
parents b5d72dda bdfeb0cc

Documentation/devicetree/bindings/csky/pmu.txt

0 → 100644
+38 −0
Original line number Diff line number Diff line 
===============================

C-SKY Performance Monitor Units

===============================



C-SKY Performance Monitor is designed for ck807/ck810/ck860 SMP soc and

it could count cpu's events for helping analysis performance issues.



============================

PMU node bindings definition

============================



	Description: Describes PMU



	PROPERTIES



	- compatible

		Usage: required

		Value type: <string>

		Definition: must be "csky,csky-pmu"

	- interrupts

		Usage: required

		Value type: <u32 IRQ_TYPE_XXX>

		Definition: must be pmu irq num defined by soc

	- count-width

		Usage: optional

		Value type: <u32>

		Definition: the width of pmu counter



Examples:

---------

#include <dt-bindings/interrupt-controller/irq.h>



	pmu: performace-monitor {

		compatible = "csky,csky-pmu";

		interrupts = <23 IRQ_TYPE_EDGE_RISING>;

		interrupt-parent = <&intc>;

		count-width = <48>;

        };

arch/csky/Kconfig

+4 −0
Original line number Diff line number Diff line
@@ -10,6 +10,9 @@ config CSKY 
	select COMMON_CLK

	select CLKSRC_MMIO

	select CLKSRC_OF

	select CSKY_MPINTC if CPU_CK860

	select CSKY_MP_TIMER if CPU_CK860

	select CSKY_APB_INTC

	select DMA_DIRECT_REMAP

	select IRQ_DOMAIN

	select HANDLE_DOMAIN_IRQ
@@ -30,6 +33,7 @@ config CSKY 
	select GENERIC_IRQ_MULTI_HANDLER

	select GENERIC_SCHED_CLOCK

	select GENERIC_SMP_IDLE_THREAD

	select GX6605S_TIMER if CPU_CK610

	select HAVE_ARCH_TRACEHOOK

	select HAVE_ARCH_AUDITSYSCALL

	select HAVE_DYNAMIC_FTRACE

arch/csky/abiv1/Makefile

+0 −1
Original line number Diff line number Diff line
@@ -5,5 +5,4 @@ obj-y += bswapsi.o 
obj-y					+= cacheflush.o

obj-y					+= mmap.o

obj-y					+= memcpy.o

obj-y					+= memset.o

obj-y					+= strksyms.o

arch/csky/abiv1/inc/abi/ckmmu.h

+6 −0
Original line number Diff line number Diff line
@@ -78,6 +78,12 @@ static inline void tlb_invalid_all(void) 
	cpwcr("cpcr8", 0x04000000);

}





static inline void local_tlb_invalid_all(void)

{

	tlb_invalid_all();

}



static inline void tlb_invalid_indexed(void)

{

	cpwcr("cpcr8", 0x02000000);

arch/csky/abiv1/inc/abi/string.h

+0 −3
Original line number Diff line number Diff line
@@ -7,7 +7,4 @@ 
#define __HAVE_ARCH_MEMCPY

extern void *memcpy(void *, const void *, __kernel_size_t);



#define __HAVE_ARCH_MEMSET

extern void *memset(void *, int, __kernel_size_t);



#endif /* __ABI_CSKY_STRING_H */