Commit fa19a769 authored by Linus Torvalds's avatar Linus Torvalds
Browse files

Merge branch 'fixes' of git://git.armlinux.org.uk/~rmk/linux-arm 

Pull ARM fixes from Russell King:
 "A few ARM fixes:

   - fix a crash while performing TLB maintanence on early ARM SMP cores

   - blacklist Scorpion CPUs for hardware breakpoints

   - ARMs asm/types.h has been included as part of the UAPI due to the
     way the makefiles work, move it to uapi/asm/types.h to make it
     official

   - fix up ftrace syscall name matching"

* 'fixes' of git://git.armlinux.org.uk/~rmk/linux-arm:
  ARM: 8613/1: Fix the uaccess crash on PB11MPCore
  MAINTAINERS: update rmk's entries
  ARM: put types.h in uapi
  ARM: 8634/1: hw_breakpoint: blacklist Scorpion CPUs
  ARM: 8632/1: ftrace: fix syscall name matching
parents ca92e6c7 90f92c63

MAINTAINERS

+8 −2
Original line number Diff line number Diff line
@@ -976,6 +976,7 @@ M: Russell King <linux@armlinux.org.uk> 
L:	linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)

W:	http://www.armlinux.org.uk/

S:	Maintained

T:	git git://git.armlinux.org.uk/~rmk/linux-arm.git

F:	arch/arm/



ARM SUB-ARCHITECTURES
@@ -1153,6 +1154,7 @@ ARM/CLKDEV SUPPORT 
M:	Russell King <linux@armlinux.org.uk>

L:	linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)

S:	Maintained

T:	git git://git.armlinux.org.uk/~rmk/linux-arm.git clkdev

F:	arch/arm/include/asm/clkdev.h

F:	drivers/clk/clkdev.c
@@ -7697,8 +7699,10 @@ F: drivers/net/dsa/mv88e6xxx/ 
F:	Documentation/devicetree/bindings/net/dsa/marvell.txt



MARVELL ARMADA DRM SUPPORT

M:	Russell King <rmk+kernel@armlinux.org.uk>

M:	Russell King <linux@armlinux.org.uk>

S:	Maintained

T:	git git://git.armlinux.org.uk/~rmk/linux-arm.git drm-armada-devel

T:	git git://git.armlinux.org.uk/~rmk/linux-arm.git drm-armada-fixes

F:	drivers/gpu/drm/armada/

F:	include/uapi/drm/armada_drm.h

F:	Documentation/devicetree/bindings/display/armada/
@@ -8903,8 +8907,10 @@ S: Supported 
F:	drivers/nfc/nxp-nci



NXP TDA998X DRM DRIVER

M:	Russell King <rmk+kernel@armlinux.org.uk>

M:	Russell King <linux@armlinux.org.uk>

S:	Supported

T:	git git://git.armlinux.org.uk/~rmk/linux-arm.git drm-tda998x-devel

T:	git git://git.armlinux.org.uk/~rmk/linux-arm.git drm-tda998x-fixes

F:	drivers/gpu/drm/i2c/tda998x_drv.c

F:	include/drm/i2c/tda998x.h

arch/arm/include/asm/cputype.h

+3 −0
Original line number Diff line number Diff line
@@ -94,6 +94,9 @@ 
#define ARM_CPU_XSCALE_ARCH_V2		0x4000

#define ARM_CPU_XSCALE_ARCH_V3		0x6000



/* Qualcomm implemented cores */

#define ARM_CPU_PART_SCORPION		0x510002d0



extern unsigned int processor_id;



#ifdef CONFIG_CPU_CP15

arch/arm/include/asm/ftrace.h

+18 −0
Original line number Diff line number Diff line
@@ -54,6 +54,24 @@ static inline void *return_address(unsigned int level) 


#define ftrace_return_address(n) return_address(n)



#define ARCH_HAS_SYSCALL_MATCH_SYM_NAME



static inline bool arch_syscall_match_sym_name(const char *sym,

					       const char *name)

{

	if (!strcmp(sym, "sys_mmap2"))

		sym = "sys_mmap_pgoff";

	else if (!strcmp(sym, "sys_statfs64_wrapper"))

		sym = "sys_statfs64";

	else if (!strcmp(sym, "sys_fstatfs64_wrapper"))

		sym = "sys_fstatfs64";

	else if (!strcmp(sym, "sys_arm_fadvise64_64"))

		sym = "sys_fadvise64_64";



	/* Ignore case since sym may start with "SyS" instead of "sys" */

	return !strcasecmp(sym, name);

}



#endif /* ifndef __ASSEMBLY__ */



#endif /* _ASM_ARM_FTRACE */

arch/arm/include/asm/types.h→arch/arm/include/uapi/asm/types.h

+3 −3
Original line number Diff line number Diff line 
#ifndef _ASM_TYPES_H

#define _ASM_TYPES_H

#ifndef _UAPI_ASM_TYPES_H

#define _UAPI_ASM_TYPES_H



#include <asm-generic/int-ll64.h>
@@ -37,4 +37,4 @@ 
#define __UINTPTR_TYPE__	unsigned long

#endif



#endif /* _ASM_TYPES_H */
 
#endif /* _UAPI_ASM_TYPES_H */

arch/arm/kernel/hw_breakpoint.c

+16 −0
Original line number Diff line number Diff line
@@ -1063,6 +1063,22 @@ static int __init arch_hw_breakpoint_init(void) 
		return 0;

	}



	/*

	 * Scorpion CPUs (at least those in APQ8060) seem to set DBGPRSR.SPD

	 * whenever a WFI is issued, even if the core is not powered down, in

	 * violation of the architecture.  When DBGPRSR.SPD is set, accesses to

	 * breakpoint and watchpoint registers are treated as undefined, so

	 * this results in boot time and runtime failures when these are

	 * accessed and we unexpectedly take a trap.

	 *

	 * It's not clear if/how this can be worked around, so we blacklist

	 * Scorpion CPUs to avoid these issues.

	*/

	if (read_cpuid_part() == ARM_CPU_PART_SCORPION) {

		pr_info("Scorpion CPU detected. Hardware breakpoints and watchpoints disabled\n");

		return 0;

	}



	has_ossr = core_has_os_save_restore();



	/* Determine how many BRPs/WRPs are available. */

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