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Commit f8e4fae2 authored by Linus Torvalds's avatar Linus Torvalds
Browse files

Merge git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tile 

Pull arch/tile updates from Chris Metcalf:
 "The only substantive pieces in this batch are some more vDSO support,
  and removing the reference to &platform_bus in tile-srom.c.

  The rest are minor issues reported to me"

* git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tile:
  tile: add clock_gettime support to vDSO
  tile: switch to using seqlocks for the vDSO time code
  tile gxio: use better string copy primitive
  char: tile-srom: Add real platform bus parent
  Removed repeated word in comments
  tilegx: Enable ARCH_SUPPORTS_ATOMIC_RMW
  tile: Remove tile-specific _sinitdata and _einitdata
  tile: use ARRAY_SIZE
parents 6325e940 78410af5

arch/tile/Kconfig

+1 −0
Original line number Original line Diff line number Diff line
@@ -134,6 +134,7 @@ config TILEGX 
	select HAVE_KPROBES

	select HAVE_KPROBES

	select HAVE_KRETPROBES

	select HAVE_KRETPROBES

	select HAVE_ARCH_KGDB

	select HAVE_ARCH_KGDB

	select ARCH_SUPPORTS_ATOMIC_RMW





config TILEPRO

config TILEPRO

	def_bool !TILEGX

	def_bool !TILEGX

arch/tile/gxio/mpipe.c

+32 −5
Original line number Original line Diff line number Diff line
@@ -29,6 +29,32 @@ 
/* HACK: Avoid pointless "shadow" warnings. */

/* HACK: Avoid pointless "shadow" warnings. */

#define link link_shadow

#define link link_shadow





/**

 * strscpy - Copy a C-string into a sized buffer, but only if it fits

 * @dest: Where to copy the string to

 * @src: Where to copy the string from

 * @size: size of destination buffer

 *

 * Use this routine to avoid copying too-long strings.

 * The routine returns the total number of bytes copied

 * (including the trailing NUL) or zero if the buffer wasn't

 * big enough.  To ensure that programmers pay attention

 * to the return code, the destination has a single NUL

 * written at the front (if size is non-zero) when the

 * buffer is not big enough.

 */

static size_t strscpy(char *dest, const char *src, size_t size)

{

	size_t len = strnlen(src, size) + 1;

	if (len > size) {

		if (size)

			dest[0] = '\0';

		return 0;

	}

	memcpy(dest, src, len);

	return len;

}



int gxio_mpipe_init(gxio_mpipe_context_t *context, unsigned int mpipe_index)

int gxio_mpipe_init(gxio_mpipe_context_t *context, unsigned int mpipe_index)

{

{

	char file[32];

	char file[32];
@@ -511,8 +537,8 @@ int gxio_mpipe_link_instance(const char *link_name) 
	if (!context)

	if (!context)

		return GXIO_ERR_NO_DEVICE;

		return GXIO_ERR_NO_DEVICE;





	strncpy(name.name, link_name, sizeof(name.name));

	if (strscpy(name.name, link_name, sizeof(name.name)) == 0)

	name.name[GXIO_MPIPE_LINK_NAME_LEN - 1] = '\0';

		return GXIO_ERR_NO_DEVICE;





	return gxio_mpipe_info_instance_aux(context, name);

	return gxio_mpipe_info_instance_aux(context, name);

}

}
@@ -529,7 +555,8 @@ int gxio_mpipe_link_enumerate_mac(int idx, char *link_name, uint8_t *link_mac) 




	rv = gxio_mpipe_info_enumerate_aux(context, idx, &name, &mac);

	rv = gxio_mpipe_info_enumerate_aux(context, idx, &name, &mac);

	if (rv >= 0) {

	if (rv >= 0) {

		strncpy(link_name, name.name, sizeof(name.name));

		if (strscpy(link_name, name.name, sizeof(name.name)) == 0)

			return GXIO_ERR_INVAL_MEMORY_SIZE;

		memcpy(link_mac, mac.mac, sizeof(mac.mac));

		memcpy(link_mac, mac.mac, sizeof(mac.mac));

	}

	}
@@ -545,8 +572,8 @@ int gxio_mpipe_link_open(gxio_mpipe_link_t *link, 
	_gxio_mpipe_link_name_t name;

	_gxio_mpipe_link_name_t name;

	int rv;

	int rv;





	strncpy(name.name, link_name, sizeof(name.name));

	if (strscpy(name.name, link_name, sizeof(name.name)) == 0)

	name.name[GXIO_MPIPE_LINK_NAME_LEN - 1] = '\0';

		return GXIO_ERR_NO_DEVICE;





	rv = gxio_mpipe_link_open_aux(context, name, flags);

	rv = gxio_mpipe_link_open_aux(context, name, flags);

	if (rv < 0)

	if (rv < 0)

arch/tile/include/asm/sections.h

+0 −3
Original line number Original line Diff line number Diff line
@@ -19,9 +19,6 @@ 




#include <asm-generic/sections.h>

#include <asm-generic/sections.h>





/* Text and data are at different areas in the kernel VA space. */

extern char _sinitdata[], _einitdata[];



/* Write-once data is writable only till the end of initialization. */

/* Write-once data is writable only till the end of initialization. */

extern char __w1data_begin[], __w1data_end[];

extern char __w1data_begin[], __w1data_end[];

arch/tile/include/asm/vdso.h

+13 −7
Original line number Original line Diff line number Diff line
@@ -15,6 +15,7 @@ 
#ifndef __TILE_VDSO_H__

#ifndef __TILE_VDSO_H__

#define __TILE_VDSO_H__

#define __TILE_VDSO_H__





#include <linux/seqlock.h>

#include <linux/types.h>

#include <linux/types.h>





/*

/*
@@ -26,15 +27,20 @@ 
 */

 */





struct vdso_data {

struct vdso_data {

	__u64 tz_update_count;  /* Timezone atomicity ctr             */

	seqcount_t tz_seq;	/* Timezone seqlock                   */

	__u64 tb_update_count;  /* Timebase atomicity ctr             */

	seqcount_t tb_seq;	/* Timebase seqlock                   */

	__u64 xtime_tod_stamp;  /* TOD clock for xtime                */

	__u64 cycle_last;       /* TOD clock for xtime                */

	__u64 xtime_clock_sec;  /* Kernel time second                 */

	__u64 mask;             /* Cycle mask                         */

	__u64 xtime_clock_nsec; /* Kernel time nanosecond             */

	__u64 wtom_clock_sec;   /* Wall to monotonic clock second     */

	__u64 wtom_clock_nsec;  /* Wall to monotonic clock nanosecond */

	__u32 mult;             /* Cycle to nanosecond multiplier     */

	__u32 mult;             /* Cycle to nanosecond multiplier     */

	__u32 shift;            /* Cycle to nanosecond divisor (power of two) */

	__u32 shift;            /* Cycle to nanosecond divisor (power of two) */

	__u64 wall_time_sec;

	__u64 wall_time_snsec;

	__u64 monotonic_time_sec;

	__u64 monotonic_time_snsec;

	__u64 wall_time_coarse_sec;

	__u64 wall_time_coarse_nsec;

	__u64 monotonic_time_coarse_sec;

	__u64 monotonic_time_coarse_nsec;

	__u32 tz_minuteswest;   /* Minutes west of Greenwich          */

	__u32 tz_minuteswest;   /* Minutes west of Greenwich          */

	__u32 tz_dsttime;       /* Type of dst correction             */

	__u32 tz_dsttime;       /* Type of dst correction             */

};

};

arch/tile/include/uapi/arch/sim_def.h

+5 −5
Original line number Original line Diff line number Diff line
@@ -360,19 +360,19 @@ 
 * @{

 * @{

 */

 */





/** Use with with SIM_PROFILER_CHIP_xxx to control the memory controllers. */

/** Use with SIM_PROFILER_CHIP_xxx to control the memory controllers. */

#define SIM_CHIP_MEMCTL        0x001

#define SIM_CHIP_MEMCTL        0x001





/** Use with with SIM_PROFILER_CHIP_xxx to control the XAUI interface. */

/** Use with SIM_PROFILER_CHIP_xxx to control the XAUI interface. */

#define SIM_CHIP_XAUI          0x002

#define SIM_CHIP_XAUI          0x002





/** Use with with SIM_PROFILER_CHIP_xxx to control the PCIe interface. */

/** Use with SIM_PROFILER_CHIP_xxx to control the PCIe interface. */

#define SIM_CHIP_PCIE          0x004

#define SIM_CHIP_PCIE          0x004





/** Use with with SIM_PROFILER_CHIP_xxx to control the MPIPE interface. */

/** Use with SIM_PROFILER_CHIP_xxx to control the MPIPE interface. */

#define SIM_CHIP_MPIPE         0x008

#define SIM_CHIP_MPIPE         0x008





/** Use with with SIM_PROFILER_CHIP_xxx to control the TRIO interface. */

/** Use with SIM_PROFILER_CHIP_xxx to control the TRIO interface. */

#define SIM_CHIP_TRIO          0x010

#define SIM_CHIP_TRIO          0x010





/** Reference all chip devices. */

/** Reference all chip devices. */