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Merge branch 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc 

Pull powerpc fixes from Ben Herrenschmidt:
 "Here are a few powerpc bits & fixes for rc1.  A couple of str*cpy
  fixes, some fixes in handling the FSCR register on Power8 (controls
  the enabling of processor features), a 32-bit build fix and a couple
  more nits."

* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc:
  powerpc: Set DSCR bit in FSCR setup
  powerpc: Add DSCR FSCR register bit definition
  powerpc: Fix setting FSCR for HV=0 and on secondary CPUs
  powerpc: Wireup the kcmp syscall to sys_ni
  powerpc: Remove unused BITOP_LE_SWIZZLE macro
  powerpc: Avoid link stack corruption in MMU on syscall entry path
  drivers/tty/hvc: Use strlcpy instead of strncpy
  powerpc/pseries/hvcserver: Fix strncpy buffer limit in location code
  powerpc: Fix compile of sha1-powerpc-asm.S on 32-bit
This commit is contained in:
Linus Torvalds 2013-03-05 18:56:22 -08:00
parent d7b815d4da 54c9b2253d
commit 9f225788cc
10 changed files with 17 additions and 19 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
arch/powerpc/crypto/sha1-powerpc-asm.S
View File

@ -113,7 +113,7 @@
STEPUP4((t)+16, fn)
_GLOBAL(powerpc_sha_transform)
PPC_STLU r1,-STACKFRAMESIZE(r1)
PPC_STLU r1,-INT_FRAME_SIZE(r1)
SAVE_8GPRS(14, r1)
SAVE_10GPRS(22, r1)
@ -175,5 +175,5 @@ _GLOBAL(powerpc_sha_transform)
REST_8GPRS(14, r1)
REST_10GPRS(22, r1)
addi r1,r1,STACKFRAMESIZE
addi r1,r1,INT_FRAME_SIZE
blr

2
arch/powerpc/include/asm/bitops.h
View File

@ -52,8 +52,6 @@
#define smp_mb__before_clear_bit() smp_mb()
#define smp_mb__after_clear_bit() smp_mb()
#define BITOP_LE_SWIZZLE ((BITS_PER_LONG-1) & ~0x7)
/* Macro for generating the ***_bits() functions */
#define DEFINE_BITOP(fn, op, prefix, postfix) \
static __inline__ void fn(unsigned long mask, \

3
arch/powerpc/include/asm/reg.h
View File

@ -266,7 +266,8 @@
#define SPRN_HSRR0 0x13A /* Hypervisor Save/Restore 0 */
#define SPRN_HSRR1 0x13B /* Hypervisor Save/Restore 1 */
#define SPRN_FSCR 0x099 /* Facility Status & Control Register */
#define FSCR_TAR (1<<8) /* Enable Target Adress Register */
#define FSCR_TAR (1 << (63-55)) /* Enable Target Address Register */
#define FSCR_DSCR (1 << (63-61)) /* Enable Data Stream Control Register */
#define SPRN_TAR 0x32f /* Target Address Register */
#define SPRN_LPCR 0x13E /* LPAR Control Register */
#define LPCR_VPM0 (1ul << (63-0))

1
arch/powerpc/include/asm/systbl.h
View File

@ -358,3 +358,4 @@ SYSCALL_SPU(setns)
COMPAT_SYS(process_vm_readv)
COMPAT_SYS(process_vm_writev)
SYSCALL(finit_module)
SYSCALL(ni_syscall) /* sys_kcmp */

2
arch/powerpc/include/asm/unistd.h
View File

@ -12,7 +12,7 @@
#include <uapi/asm/unistd.h>
#define __NR_syscalls 354
#define __NR_syscalls 355
#define __NR__exit __NR_exit
#define NR_syscalls __NR_syscalls

1
arch/powerpc/include/uapi/asm/unistd.h
View File

@ -376,6 +376,7 @@
#define __NR_process_vm_readv 351
#define __NR_process_vm_writev 352
#define __NR_finit_module 353
#define __NR_kcmp 354
#endif /* _UAPI_ASM_POWERPC_UNISTD_H_ */

5
arch/powerpc/kernel/cpu_setup_power.S
View File

@ -48,6 +48,7 @@ _GLOBAL(__restore_cpu_power7)
_GLOBAL(__setup_cpu_power8)
mflr r11
bl __init_FSCR
bl __init_hvmode_206
mtlr r11
beqlr
@ -56,13 +57,13 @@ _GLOBAL(__setup_cpu_power8)
mfspr r3,SPRN_LPCR
oris r3, r3, LPCR_AIL_3@h
bl __init_LPCR
bl __init_FSCR
bl __init_TLB
mtlr r11
blr
_GLOBAL(__restore_cpu_power8)
mflr r11
bl __init_FSCR
mfmsr r3
rldicl. r0,r3,4,63
beqlr
@ -115,7 +116,7 @@ __init_LPCR:
__init_FSCR:
mfspr r3,SPRN_FSCR
ori r3,r3,FSCR_TAR
ori r3,r3,FSCR_TAR|FSCR_DSCR
mtspr SPRN_FSCR,r3
blr

4
arch/powerpc/kernel/exceptions-64s.S
View File

@ -74,13 +74,13 @@ END_FTR_SECTION_IFSET(CPU_FTR_REAL_LE) \
mflr r10 ; \
ld r12,PACAKBASE(r13) ; \
LOAD_HANDLER(r12, system_call_entry_direct) ; \
mtlr r12 ; \
mtctr r12 ; \
mfspr r12,SPRN_SRR1 ; \
/* Re-use of r13... No spare regs to do this */ \
li r13,MSR_RI ; \
mtmsrd r13,1 ; \
GET_PACA(r13) ; /* get r13 back */ \
blr ;
bctr ;
#else
/* We can branch directly */
#define SYSCALL_PSERIES_2_DIRECT \

5
arch/powerpc/platforms/pseries/hvcserver.c
View File

@ -23,6 +23,7 @@
#include <linux/list.h>
#include <linux/module.h>
#include <linux/slab.h>
#include <linux/string.h>
#include <asm/hvcall.h>
#include <asm/hvcserver.h>
@ -188,9 +189,9 @@ int hvcs_get_partner_info(uint32_t unit_address, struct list_head *head,
= (unsigned int)last_p_partition_ID;
/* copy the Null-term char too */
strncpy(&next_partner_info->location_code[0],
strlcpy(&next_partner_info->location_code[0],
(char *)&pi_buff[2],
strlen((char *)&pi_buff[2]) + 1);
sizeof(next_partner_info->location_code));
list_add_tail(&(next_partner_info->node), head);
next_partner_info = NULL;

9
drivers/tty/hvc/hvcs.c
View File

@ -881,17 +881,12 @@ static struct vio_driver hvcs_vio_driver = {
/* Only called from hvcs_get_pi please */
static void hvcs_set_pi(struct hvcs_partner_info *pi, struct hvcs_struct *hvcsd)
{
int clclength;
hvcsd->p_unit_address = pi->unit_address;
hvcsd->p_partition_ID = pi->partition_ID;
clclength = strlen(&pi->location_code[0]);
if (clclength > HVCS_CLC_LENGTH)
clclength = HVCS_CLC_LENGTH;
/* copy the null-term char too */
strncpy(&hvcsd->p_location_code[0],
&pi->location_code[0], clclength + 1);
strlcpy(&hvcsd->p_location_code[0],
&pi->location_code[0], sizeof(hvcsd->p_location_code));
}
/*