AcoSail/kernel_optimize_test
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Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6

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* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6:
  sparc64: Update defconfig.
  sparc: Kill user copy check code.
  sparc64: Fix perf_arch_get_caller_regs().
  sparc64: Add missing ID to parport probing code.
This commit is contained in:
Linus Torvalds 2010-08-09 21:05:17 -07:00
commit 4d15393d20
7 changed files with 67 additions and 154 deletions
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14
arch/sparc/Kconfig.debug
View File

@ -30,18 +30,4 @@ config FRAME_POINTER
depends on MCOUNT
default y
config DEBUG_STRICT_USER_COPY_CHECKS
bool "Strict copy size checks"
depends on DEBUG_KERNEL && !TRACE_BRANCH_PROFILING
---help---
Enabling this option turns a certain set of sanity checks for user
copy operations into compile time failures.
The copy_from_user() etc checks are there to help test if there
are sufficient security checks on the length argument of
the copy operation, by having gcc prove that the argument is
within bounds.
If unsure, or if you run an older (pre 4.4) gcc, say N.
endmenu

67
arch/sparc/configs/sparc64_defconfig
View File

@ -1,7 +1,7 @@
#
# Automatically generated make config: don't edit
# Linux kernel version: 2.6.34
# Wed May 26 21:14:01 2010
# Linux kernel version: 2.6.35
# Mon Aug 9 02:31:36 2010
#
CONFIG_64BIT=y
CONFIG_SPARC=y
@ -9,7 +9,6 @@ CONFIG_SPARC=y
CONFIG_SPARC64=y
CONFIG_ARCH_DEFCONFIG="arch/sparc/configs/sparc64_defconfig"
CONFIG_BITS=64
CONFIG_GENERIC_TIME=y
CONFIG_GENERIC_CMOS_UPDATE=y
CONFIG_GENERIC_CLOCKEVENTS=y
CONFIG_IOMMU_HELPER=y
@ -24,8 +23,8 @@ CONFIG_NEED_PER_CPU_PAGE_FIRST_CHUNK=y
CONFIG_GENERIC_HARDIRQS_NO__DO_IRQ=y
CONFIG_MMU=y
CONFIG_NEED_DMA_MAP_STATE=y
CONFIG_NEED_SG_DMA_LENGTH=y
CONFIG_ARCH_NO_VIRT_TO_BUS=y
CONFIG_OF=y
CONFIG_ARCH_SUPPORTS_DEBUG_PAGEALLOC=y
CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config"
CONFIG_CONSTRUCTORS=y
@ -36,6 +35,7 @@ CONFIG_CONSTRUCTORS=y
CONFIG_EXPERIMENTAL=y
CONFIG_LOCK_KERNEL=y
CONFIG_INIT_ENV_ARG_LIMIT=32
CONFIG_CROSS_COMPILE=""
CONFIG_LOCALVERSION=""
# CONFIG_LOCALVERSION_AUTO is not set
CONFIG_SWAP=y
@ -51,8 +51,6 @@ CONFIG_POSIX_MQUEUE_SYSCTL=y
# RCU Subsystem
#
CONFIG_TREE_RCU=y
# CONFIG_TREE_PREEMPT_RCU is not set
# CONFIG_TINY_RCU is not set
# CONFIG_RCU_TRACE is not set
CONFIG_RCU_FANOUT=64
# CONFIG_RCU_FANOUT_EXACT is not set
@ -110,7 +108,6 @@ CONFIG_PCI_QUIRKS=y
# CONFIG_COMPAT_BRK is not set
CONFIG_SLAB=y
# CONFIG_SLUB is not set
# CONFIG_SLOB is not set
CONFIG_PROFILING=y
CONFIG_TRACEPOINTS=y
CONFIG_OPROFILE=m
@ -129,7 +126,6 @@ CONFIG_HAVE_DMA_API_DEBUG=y
# GCOV-based kernel profiling
#
# CONFIG_GCOV_KERNEL is not set
# CONFIG_SLOW_WORK is not set
# CONFIG_HAVE_GENERIC_DMA_COHERENT is not set
CONFIG_SLABINFO=y
CONFIG_RT_MUTEXES=y
@ -227,8 +223,6 @@ CONFIG_ARCH_SELECT_MEMORY_MODEL=y
CONFIG_ARCH_SPARSEMEM_ENABLE=y
CONFIG_ARCH_SPARSEMEM_DEFAULT=y
CONFIG_SELECT_MEMORY_MODEL=y
# CONFIG_FLATMEM_MANUAL is not set
# CONFIG_DISCONTIGMEM_MANUAL is not set
CONFIG_SPARSEMEM_MANUAL=y
CONFIG_SPARSEMEM=y
CONFIG_NEED_MULTIPLE_NODES=y
@ -236,6 +230,7 @@ CONFIG_HAVE_MEMORY_PRESENT=y
CONFIG_SPARSEMEM_EXTREME=y
CONFIG_SPARSEMEM_VMEMMAP_ENABLE=y
CONFIG_SPARSEMEM_VMEMMAP=y
CONFIG_HAVE_MEMBLOCK=y
CONFIG_PAGEFLAGS_EXTENDED=y
CONFIG_SPLIT_PTLOCK_CPUS=4
# CONFIG_COMPACTION is not set
@ -345,6 +340,7 @@ CONFIG_IPV6_TUNNEL=m
# CONFIG_IPV6_MULTIPLE_TABLES is not set
# CONFIG_IPV6_MROUTE is not set
# CONFIG_NETWORK_SECMARK is not set
# CONFIG_NETWORK_PHY_TIMESTAMPING is not set
# CONFIG_NETFILTER is not set
# CONFIG_IP_DCCP is not set
# CONFIG_IP_SCTP is not set
@ -368,6 +364,7 @@ CONFIG_VLAN_8021Q=m
# CONFIG_IEEE802154 is not set
# CONFIG_NET_SCHED is not set
# CONFIG_DCB is not set
# CONFIG_DNS_RESOLVER is not set
CONFIG_RPS=y
#
@ -416,6 +413,11 @@ CONFIG_EXTRA_FIRMWARE=""
# CONFIG_SYS_HYPERVISOR is not set
CONFIG_CONNECTOR=m
# CONFIG_MTD is not set
CONFIG_OF=y
#
# Flattened Device Tree and Open Firmware support
#
CONFIG_OF_DEVICE=y
CONFIG_OF_MDIO=m
# CONFIG_PARPORT is not set
@ -638,6 +640,7 @@ CONFIG_DM_ZERO=m
#
# CONFIG_FIREWIRE is not set
# CONFIG_IEEE1394 is not set
# CONFIG_FIREWIRE_NOSY is not set
# CONFIG_I2O is not set
CONFIG_NETDEVICES=y
# CONFIG_DUMMY is not set
@ -708,7 +711,6 @@ CONFIG_NET_PCI=y
# CONFIG_SMSC9420 is not set
# CONFIG_SUNDANCE is not set
# CONFIG_TLAN is not set
# CONFIG_KS8842 is not set
# CONFIG_KS8851_MLL is not set
# CONFIG_VIA_RHINE is not set
# CONFIG_SC92031 is not set
@ -744,6 +746,8 @@ CONFIG_CHELSIO_T3_DEPENDS=y
# CONFIG_CHELSIO_T3 is not set
CONFIG_CHELSIO_T4_DEPENDS=y
# CONFIG_CHELSIO_T4 is not set
CONFIG_CHELSIO_T4VF_DEPENDS=y
# CONFIG_CHELSIO_T4VF is not set
# CONFIG_ENIC is not set
# CONFIG_IXGBE is not set
# CONFIG_IXGBEVF is not set
@ -778,6 +782,10 @@ CONFIG_NIU=m
# CONFIG_USB_USBNET is not set
# CONFIG_USB_IPHETH is not set
# CONFIG_WAN is not set
#
# CAIF transport drivers
#
# CONFIG_FDDI is not set
# CONFIG_HIPPI is not set
CONFIG_PPP=m
@ -824,10 +832,11 @@ CONFIG_INPUT_EVDEV=y
CONFIG_INPUT_KEYBOARD=y
# CONFIG_KEYBOARD_ADP5588 is not set
CONFIG_KEYBOARD_ATKBD=y
# CONFIG_QT2160 is not set
# CONFIG_KEYBOARD_QT2160 is not set
CONFIG_KEYBOARD_LKKBD=m
# CONFIG_KEYBOARD_TCA6416 is not set
# CONFIG_KEYBOARD_MAX7359 is not set
# CONFIG_KEYBOARD_MCS is not set
# CONFIG_KEYBOARD_NEWTON is not set
# CONFIG_KEYBOARD_OPENCORES is not set
# CONFIG_KEYBOARD_STOWAWAY is not set
@ -861,6 +870,7 @@ CONFIG_INPUT_SPARCSPKR=y
# CONFIG_INPUT_CM109 is not set
# CONFIG_INPUT_UINPUT is not set
# CONFIG_INPUT_PCF8574 is not set
# CONFIG_INPUT_ADXL34X is not set
#
# Hardware I/O ports
@ -921,6 +931,7 @@ CONFIG_HW_RANDOM_N2RNG=m
# CONFIG_RAW_DRIVER is not set
# CONFIG_TCG_TPM is not set
CONFIG_DEVPORT=y
# CONFIG_RAMOOPS is not set
CONFIG_I2C=y
CONFIG_I2C_BOARDINFO=y
CONFIG_I2C_COMPAT=y
@ -954,6 +965,7 @@ CONFIG_I2C_ALGOBIT=y
# I2C system bus drivers (mostly embedded / system-on-chip)
#
# CONFIG_I2C_OCORES is not set
# CONFIG_I2C_PCA_PLATFORM is not set
# CONFIG_I2C_SIMTEC is not set
# CONFIG_I2C_XILINX is not set
@ -967,7 +979,6 @@ CONFIG_I2C_ALGOBIT=y
#
# Other I2C/SMBus bus drivers
#
# CONFIG_I2C_PCA_PLATFORM is not set
# CONFIG_I2C_STUB is not set
# CONFIG_I2C_DEBUG_CORE is not set
# CONFIG_I2C_DEBUG_ALGO is not set
@ -1034,12 +1045,14 @@ CONFIG_HWMON=y
# CONFIG_SENSORS_PCF8591 is not set
# CONFIG_SENSORS_SIS5595 is not set
# CONFIG_SENSORS_DME1737 is not set
# CONFIG_SENSORS_EMC1403 is not set
# CONFIG_SENSORS_SMSC47M1 is not set
# CONFIG_SENSORS_SMSC47M192 is not set
# CONFIG_SENSORS_SMSC47B397 is not set
# CONFIG_SENSORS_ADS7828 is not set
# CONFIG_SENSORS_AMC6821 is not set
# CONFIG_SENSORS_THMC50 is not set
# CONFIG_SENSORS_TMP102 is not set
# CONFIG_SENSORS_TMP401 is not set
# CONFIG_SENSORS_TMP421 is not set
# CONFIG_SENSORS_VIA686A is not set
@ -1063,15 +1076,14 @@ CONFIG_SSB_POSSIBLE=y
# Sonics Silicon Backplane
#
# CONFIG_SSB is not set
#
# Multifunction device drivers
#
CONFIG_MFD_SUPPORT=y
# CONFIG_MFD_CORE is not set
# CONFIG_MFD_88PM860X is not set
# CONFIG_MFD_SM501 is not set
# CONFIG_HTC_PASIC3 is not set
# CONFIG_TPS6507X is not set
# CONFIG_TWL4030_CORE is not set
# CONFIG_MFD_TC35892 is not set
# CONFIG_MFD_TMIO is not set
# CONFIG_PMIC_DA903X is not set
# CONFIG_PMIC_ADP5520 is not set
@ -1081,8 +1093,10 @@ CONFIG_SSB_POSSIBLE=y
# CONFIG_MFD_WM8350_I2C is not set
# CONFIG_MFD_WM8994 is not set
# CONFIG_MFD_PCF50633 is not set
# CONFIG_AB3100_CORE is not set
# CONFIG_ABX500_CORE is not set
# CONFIG_LPC_SCH is not set
# CONFIG_MFD_RDC321X is not set
# CONFIG_MFD_JANZ_CMODIO is not set
# CONFIG_REGULATOR is not set
# CONFIG_MEDIA_SUPPORT is not set
@ -1320,6 +1334,7 @@ CONFIG_USB_HIDDEV=y
#
# CONFIG_HID_3M_PCT is not set
CONFIG_HID_A4TECH=y
# CONFIG_HID_ACRUX_FF is not set
CONFIG_HID_APPLE=y
CONFIG_HID_BELKIN=y
# CONFIG_HID_CANDO is not set
@ -1349,6 +1364,7 @@ CONFIG_HID_PANTHERLORD=y
CONFIG_HID_PETALYNX=y
# CONFIG_HID_PICOLCD is not set
# CONFIG_HID_QUANTA is not set
# CONFIG_HID_ROCCAT is not set
# CONFIG_HID_ROCCAT_KONE is not set
CONFIG_HID_SAMSUNG=y
CONFIG_HID_SONY=y
@ -1713,7 +1729,8 @@ CONFIG_DEBUG_FS=y
# CONFIG_HEADERS_CHECK is not set
CONFIG_DEBUG_KERNEL=y
# CONFIG_DEBUG_SHIRQ is not set
CONFIG_DETECT_SOFTLOCKUP=y
CONFIG_LOCKUP_DETECTOR=y
# CONFIG_HARDLOCKUP_DETECTOR is not set
# CONFIG_BOOTPARAM_SOFTLOCKUP_PANIC is not set
CONFIG_BOOTPARAM_SOFTLOCKUP_PANIC_VALUE=0
CONFIG_DETECT_HUNG_TASK=y
@ -1753,6 +1770,7 @@ CONFIG_DEBUG_MEMORY_INIT=y
# CONFIG_DEBUG_BLOCK_EXT_DEVT is not set
# CONFIG_DEBUG_FORCE_WEAK_PER_CPU is not set
# CONFIG_LKDTM is not set
# CONFIG_CPU_NOTIFIER_ERROR_INJECT is not set
# CONFIG_FAULT_INJECTION is not set
# CONFIG_LATENCYTOP is not set
CONFIG_SYSCTL_SYSCALL_CHECK=y
@ -1777,13 +1795,10 @@ CONFIG_FTRACE=y
# CONFIG_IRQSOFF_TRACER is not set
# CONFIG_SCHED_TRACER is not set
# CONFIG_FTRACE_SYSCALLS is not set
# CONFIG_BOOT_TRACER is not set
CONFIG_BRANCH_PROFILE_NONE=y
# CONFIG_PROFILE_ANNOTATED_BRANCHES is not set
# CONFIG_PROFILE_ALL_BRANCHES is not set
# CONFIG_STACK_TRACER is not set
# CONFIG_KMEMTRACE is not set
# CONFIG_WORKQUEUE_TRACER is not set
CONFIG_BLK_DEV_IO_TRACE=y
# CONFIG_FTRACE_STARTUP_TEST is not set
# CONFIG_RING_BUFFER_BENCHMARK is not set
@ -1795,7 +1810,6 @@ CONFIG_HAVE_ARCH_KGDB=y
# CONFIG_KGDB is not set
# CONFIG_DEBUG_STACK_USAGE is not set
# CONFIG_DEBUG_DCFLUSH is not set
# CONFIG_DEBUG_STRICT_USER_COPY_CHECKS is not set
#
# Security options
@ -1804,9 +1818,6 @@ CONFIG_KEYS=y
# CONFIG_KEYS_DEBUG_PROC_KEYS is not set
# CONFIG_SECURITY is not set
# CONFIG_SECURITYFS is not set
# CONFIG_DEFAULT_SECURITY_SELINUX is not set
# CONFIG_DEFAULT_SECURITY_SMACK is not set
# CONFIG_DEFAULT_SECURITY_TOMOYO is not set
CONFIG_DEFAULT_SECURITY_DAC=y
CONFIG_DEFAULT_SECURITY=""
CONFIG_XOR_BLOCKS=m
@ -1829,9 +1840,10 @@ CONFIG_CRYPTO_BLKCIPHER2=y
CONFIG_CRYPTO_HASH=y
CONFIG_CRYPTO_HASH2=y
CONFIG_CRYPTO_RNG2=y
CONFIG_CRYPTO_PCOMP=y
CONFIG_CRYPTO_PCOMP2=y
CONFIG_CRYPTO_MANAGER=y
CONFIG_CRYPTO_MANAGER2=y
CONFIG_CRYPTO_MANAGER_TESTS=y
CONFIG_CRYPTO_GF128MUL=m
CONFIG_CRYPTO_NULL=m
# CONFIG_CRYPTO_PCRYPT is not set
@ -1941,5 +1953,4 @@ CONFIG_DECOMPRESS_LZO=y
CONFIG_HAS_IOMEM=y
CONFIG_HAS_IOPORT=y
CONFIG_HAS_DMA=y
CONFIG_HAVE_LMB=y
CONFIG_NLATTR=y

4
arch/sparc/include/asm/parport.h
View File

@ -228,6 +228,10 @@ static const struct of_device_id ecpp_match[] = {
.name = "parallel",
.compatible = "ns87317-ecpp",
},
{
.name = "parallel",
.compatible = "pnpALI,1533,3",
},
{},
};

25
arch/sparc/include/asm/perf_event.h
View File

@ -10,11 +10,26 @@ extern void set_perf_event_pending(void);
extern void init_hw_perf_events(void);
extern void
__perf_arch_fetch_caller_regs(struct pt_regs *regs, unsigned long ip, int skip);
#define perf_arch_fetch_caller_regs(pt_regs, ip) \
__perf_arch_fetch_caller_regs(pt_regs, ip, 1);
#define perf_arch_fetch_caller_regs(regs, ip) \
do { \
unsigned long _pstate, _asi, _pil, _i7, _fp; \
__asm__ __volatile__("rdpr %%pstate, %0\n\t" \
"rd %%asi, %1\n\t" \
"rdpr %%pil, %2\n\t" \
"mov %%i7, %3\n\t" \
"mov %%i6, %4\n\t" \
: "=r" (_pstate), \
"=r" (_asi), \
"=r" (_pil), \
"=r" (_i7), \
"=r" (_fp)); \
(regs)->tstate = (_pstate << 8) | \
(_asi << 24) | (_pil << 20); \
(regs)->tpc = (ip); \
(regs)->tnpc = (regs)->tpc + 4; \
(regs)->u_regs[UREG_I6] = _fp; \
(regs)->u_regs[UREG_I7] = _i7; \
} while (0)
#else
static inline void init_hw_perf_events(void) { }
#endif

15
arch/sparc/include/asm/uaccess_32.h
View File

@ -260,23 +260,8 @@ static inline unsigned long __copy_to_user(void __user *to, const void *from, un
return __copy_user(to, (__force void __user *) from, n);
}
extern void copy_from_user_overflow(void)
#ifdef CONFIG_DEBUG_STRICT_USER_COPY_CHECKS
__compiletime_error("copy_from_user() buffer size is not provably correct")
#else
__compiletime_warning("copy_from_user() buffer size is not provably correct")
#endif
;
static inline unsigned long copy_from_user(void *to, const void __user *from, unsigned long n)
{
int sz = __compiletime_object_size(to);
if (unlikely(sz != -1 && sz < n)) {
copy_from_user_overflow();
return n;
}
if (n && __access_ok((unsigned long) from, n))
return __copy_user((__force void __user *) to, from, n);
else

21
arch/sparc/include/asm/uaccess_64.h
View File

@ -205,14 +205,6 @@ __asm__ __volatile__( \
extern int __get_user_bad(void);
extern void copy_from_user_overflow(void)
#ifdef CONFIG_DEBUG_STRICT_USER_COPY_CHECKS
__compiletime_error("copy_from_user() buffer size is not provably correct")
#else
__compiletime_warning("copy_from_user() buffer size is not provably correct")
#endif
;
extern unsigned long __must_check ___copy_from_user(void *to,
const void __user *from,
unsigned long size);
@ -221,16 +213,11 @@ extern unsigned long copy_from_user_fixup(void *to, const void __user *from,
static inline unsigned long __must_check
copy_from_user(void *to, const void __user *from, unsigned long size)
{
int sz = __compiletime_object_size(to);
unsigned long ret = size;
unsigned long ret = ___copy_from_user(to, from, size);
if (unlikely(ret))
ret = copy_from_user_fixup(to, from, size);
if (likely(sz == -1 || sz >= size)) {
ret = ___copy_from_user(to, from, size);
if (unlikely(ret))
ret = copy_from_user_fixup(to, from, size);
} else {
copy_from_user_overflow();
}
return ret;
}
#define __copy_from_user copy_from_user

75
arch/sparc/kernel/helpers.S
View File

@ -46,81 +46,6 @@ stack_trace_flush:
nop
.size stack_trace_flush,.-stack_trace_flush
#ifdef CONFIG_PERF_EVENTS
.globl __perf_arch_fetch_caller_regs
.type __perf_arch_fetch_caller_regs,#function
__perf_arch_fetch_caller_regs:
/* We always read the %pstate into %o5 since we will use
* that to construct a fake %tstate to store into the regs.
*/
rdpr %pstate, %o5
brz,pn %o2, 50f
mov %o2, %g7
/* Turn off interrupts while we walk around the register
* window by hand.
*/
wrpr %o5, PSTATE_IE, %pstate
/* The %canrestore tells us how many register windows are
* still live in the chip above us, past that we have to
* walk the frame as saved on the stack. We stash away
* the %cwp in %g1 so we can return back to the original
* register window.
*/
rdpr %cwp, %g1
rdpr %canrestore, %g2
sub %g1, 1, %g3
/* We have the skip count in %g7, if it hits zero then
* %fp/%i7 are the registers we need. Otherwise if our
* %canrestore count maintained in %g2 hits zero we have
* to start traversing the stack.
*/
10: brz,pn %g2, 4f
sub %g2, 1, %g2
wrpr %g3, %cwp
subcc %g7, 1, %g7
bne,pt %xcc, 10b
sub %g3, 1, %g3
/* We found the values we need in the cpu's register
* windows.
*/
mov %fp, %g3
ba,pt %xcc, 3f
mov %i7, %g2
50: mov %fp, %g3
ba,pt %xcc, 2f
mov %i7, %g2
/* We hit the end of the valid register windows in the
* cpu, start traversing the stack frame.
*/
4: mov %fp, %g3
20: ldx [%g3 + STACK_BIAS + RW_V9_I7], %g2
subcc %g7, 1, %g7
bne,pn %xcc, 20b
ldx [%g3 + STACK_BIAS + RW_V9_I6], %g3
/* Restore the current register window position and
* re-enable interrupts.
*/
3: wrpr %g1, %cwp
wrpr %o5, %pstate
2: stx %g3, [%o0 + PT_V9_FP]
sllx %o5, 8, %o5
stx %o5, [%o0 + PT_V9_TSTATE]
stx %g2, [%o0 + PT_V9_TPC]
add %g2, 4, %g2
retl
stx %g2, [%o0 + PT_V9_TNPC]
.size perf_arch_fetch_caller_regs,.-perf_arch_fetch_caller_regs
#endif /* CONFIG_PERF_EVENTS */
#ifdef CONFIG_SMP
.globl hard_smp_processor_id
.type hard_smp_processor_id,#function