From 5a0e3ad6af8660be21ca98a971cd00f331318c05 Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Wed, 24 Mar 2010 17:04:11 +0900 Subject: include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h percpu.h is included by sched.h and module.h and thus ends up being included when building most .c files. percpu.h includes slab.h which in turn includes gfp.h making everything defined by the two files universally available and complicating inclusion dependencies. percpu.h -> slab.h dependency is about to be removed. Prepare for this change by updating users of gfp and slab facilities include those headers directly instead of assuming availability. As this conversion needs to touch large number of source files, the following script is used as the basis of conversion. http://userweb.kernel.org/~tj/misc/slabh-sweep.py The script does the followings. * Scan files for gfp and slab usages and update includes such that only the necessary includes are there. ie. if only gfp is used, gfp.h, if slab is used, slab.h. * When the script inserts a new include, it looks at the include blocks and try to put the new include such that its order conforms to its surrounding. It's put in the include block which contains core kernel includes, in the same order that the rest are ordered - alphabetical, Christmas tree, rev-Xmas-tree or at the end if there doesn't seem to be any matching order. * If the script can't find a place to put a new include (mostly because the file doesn't have fitting include block), it prints out an error message indicating which .h file needs to be added to the file. The conversion was done in the following steps. 1. The initial automatic conversion of all .c files updated slightly over 4000 files, deleting around 700 includes and adding ~480 gfp.h and ~3000 slab.h inclusions. The script emitted errors for ~400 files. 2. Each error was manually checked. Some didn't need the inclusion, some needed manual addition while adding it to implementation .h or embedding .c file was more appropriate for others. This step added inclusions to around 150 files. 3. The script was run again and the output was compared to the edits from #2 to make sure no file was left behind. 4. Several build tests were done and a couple of problems were fixed. e.g. lib/decompress_*.c used malloc/free() wrappers around slab APIs requiring slab.h to be added manually. 5. The script was run on all .h files but without automatically editing them as sprinkling gfp.h and slab.h inclusions around .h files could easily lead to inclusion dependency hell. Most gfp.h inclusion directives were ignored as stuff from gfp.h was usually wildly available and often used in preprocessor macros. Each slab.h inclusion directive was examined and added manually as necessary. 6. percpu.h was updated not to include slab.h. 7. Build test were done on the following configurations and failures were fixed. CONFIG_GCOV_KERNEL was turned off for all tests (as my distributed build env didn't work with gcov compiles) and a few more options had to be turned off depending on archs to make things build (like ipr on powerpc/64 which failed due to missing writeq). * x86 and x86_64 UP and SMP allmodconfig and a custom test config. * powerpc and powerpc64 SMP allmodconfig * sparc and sparc64 SMP allmodconfig * ia64 SMP allmodconfig * s390 SMP allmodconfig * alpha SMP allmodconfig * um on x86_64 SMP allmodconfig 8. percpu.h modifications were reverted so that it could be applied as a separate patch and serve as bisection point. Given the fact that I had only a couple of failures from tests on step 6, I'm fairly confident about the coverage of this conversion patch. If there is a breakage, it's likely to be something in one of the arch headers which should be easily discoverable easily on most builds of the specific arch. Signed-off-by: Tejun Heo Guess-its-ok-by: Christoph Lameter Cc: Ingo Molnar Cc: Lee Schermerhorn --- arch/sparc/kernel/central.c | 1 + arch/sparc/kernel/cpumap.c | 1 + arch/sparc/kernel/hvapi.c | 1 - arch/sparc/kernel/iommu.c | 1 + arch/sparc/kernel/kprobes.c | 1 + arch/sparc/kernel/led.c | 1 + arch/sparc/kernel/leon_kernel.c | 1 - arch/sparc/kernel/leon_smp.c | 1 + arch/sparc/kernel/module.c | 2 +- arch/sparc/kernel/of_device_common.c | 1 - arch/sparc/kernel/pci_msi.c | 1 + arch/sparc/kernel/process_32.c | 2 +- arch/sparc/kernel/setup_64.c | 1 - arch/sparc/kernel/smp_64.c | 1 + arch/sparc/kernel/sun4c_irq.c | 1 - arch/sparc/kernel/sun4m_irq.c | 1 - arch/sparc/kernel/sys_sparc32.c | 2 +- arch/sparc/kernel/traps_64.c | 1 + arch/sparc/kernel/vio.c | 1 + arch/sparc/mm/hugetlbpage.c | 1 - arch/sparc/mm/init_32.c | 1 + arch/sparc/mm/init_64.c | 2 +- arch/sparc/mm/srmmu.c | 2 +- arch/sparc/mm/sun4c.c | 1 + arch/sparc/mm/tsb.c | 1 + 25 files changed, 18 insertions(+), 12 deletions(-) (limited to 'arch/sparc') diff --git a/arch/sparc/kernel/central.c b/arch/sparc/kernel/central.c index 4589ca33220f..415c86d5a8da 100644 --- a/arch/sparc/kernel/central.c +++ b/arch/sparc/kernel/central.c @@ -5,6 +5,7 @@ #include #include +#include #include #include #include diff --git a/arch/sparc/kernel/cpumap.c b/arch/sparc/kernel/cpumap.c index 7430ed080b23..8de64c8126bc 100644 --- a/arch/sparc/kernel/cpumap.c +++ b/arch/sparc/kernel/cpumap.c @@ -4,6 +4,7 @@ */ #include +#include #include #include #include diff --git a/arch/sparc/kernel/hvapi.c b/arch/sparc/kernel/hvapi.c index 1d272c3b5740..7c60afb835b0 100644 --- a/arch/sparc/kernel/hvapi.c +++ b/arch/sparc/kernel/hvapi.c @@ -5,7 +5,6 @@ #include #include #include -#include #include #include diff --git a/arch/sparc/kernel/iommu.c b/arch/sparc/kernel/iommu.c index 8414549c1834..47977a77f6c6 100644 --- a/arch/sparc/kernel/iommu.c +++ b/arch/sparc/kernel/iommu.c @@ -6,6 +6,7 @@ #include #include +#include #include #include #include diff --git a/arch/sparc/kernel/kprobes.c b/arch/sparc/kernel/kprobes.c index 6716584e48ab..a39d1ba5a119 100644 --- a/arch/sparc/kernel/kprobes.c +++ b/arch/sparc/kernel/kprobes.c @@ -7,6 +7,7 @@ #include #include #include +#include #include #include #include diff --git a/arch/sparc/kernel/led.c b/arch/sparc/kernel/led.c index 00d034ea2164..3ae36f36e758 100644 --- a/arch/sparc/kernel/led.c +++ b/arch/sparc/kernel/led.c @@ -3,6 +3,7 @@ #include #include #include +#include #include #include #include diff --git a/arch/sparc/kernel/leon_kernel.c b/arch/sparc/kernel/leon_kernel.c index 0409d62d8ca2..6a7b4dbc8e09 100644 --- a/arch/sparc/kernel/leon_kernel.c +++ b/arch/sparc/kernel/leon_kernel.c @@ -7,7 +7,6 @@ #include #include #include -#include #include #include #include diff --git a/arch/sparc/kernel/leon_smp.c b/arch/sparc/kernel/leon_smp.c index 85787577f683..e1656fc41ccb 100644 --- a/arch/sparc/kernel/leon_smp.c +++ b/arch/sparc/kernel/leon_smp.c @@ -22,6 +22,7 @@ #include #include #include +#include #include #include diff --git a/arch/sparc/kernel/module.c b/arch/sparc/kernel/module.c index 0ee642f63234..f848aadf54dc 100644 --- a/arch/sparc/kernel/module.c +++ b/arch/sparc/kernel/module.c @@ -9,9 +9,9 @@ #include #include #include +#include #include #include -#include #include #include diff --git a/arch/sparc/kernel/of_device_common.c b/arch/sparc/kernel/of_device_common.c index cb8eb799bb6c..0247e68210b3 100644 --- a/arch/sparc/kernel/of_device_common.c +++ b/arch/sparc/kernel/of_device_common.c @@ -4,7 +4,6 @@ #include #include #include -#include #include #include #include diff --git a/arch/sparc/kernel/pci_msi.c b/arch/sparc/kernel/pci_msi.c index e1b0541feb19..e0ef847219c3 100644 --- a/arch/sparc/kernel/pci_msi.c +++ b/arch/sparc/kernel/pci_msi.c @@ -4,6 +4,7 @@ */ #include #include +#include #include #include "pci_impl.h" diff --git a/arch/sparc/kernel/process_32.c b/arch/sparc/kernel/process_32.c index c49865b30719..40e29fc8a4d6 100644 --- a/arch/sparc/kernel/process_32.c +++ b/arch/sparc/kernel/process_32.c @@ -17,13 +17,13 @@ #include #include #include -#include #include #include #include #include #include #include +#include #include #include diff --git a/arch/sparc/kernel/setup_64.c b/arch/sparc/kernel/setup_64.c index a2a79e76344f..5f72de67588b 100644 --- a/arch/sparc/kernel/setup_64.c +++ b/arch/sparc/kernel/setup_64.c @@ -12,7 +12,6 @@ #include #include #include -#include #include #include #include diff --git a/arch/sparc/kernel/smp_64.c b/arch/sparc/kernel/smp_64.c index eb14844a0021..4c5334528109 100644 --- a/arch/sparc/kernel/smp_64.c +++ b/arch/sparc/kernel/smp_64.c @@ -23,6 +23,7 @@ #include #include #include +#include #include #include diff --git a/arch/sparc/kernel/sun4c_irq.c b/arch/sparc/kernel/sun4c_irq.c index bc3adbf79c6a..892fb884910a 100644 --- a/arch/sparc/kernel/sun4c_irq.c +++ b/arch/sparc/kernel/sun4c_irq.c @@ -16,7 +16,6 @@ #include #include #include -#include #include #include #include diff --git a/arch/sparc/kernel/sun4m_irq.c b/arch/sparc/kernel/sun4m_irq.c index 301892e2d718..7f3b97ff62c1 100644 --- a/arch/sparc/kernel/sun4m_irq.c +++ b/arch/sparc/kernel/sun4m_irq.c @@ -17,7 +17,6 @@ #include #include #include -#include #include #include #include diff --git a/arch/sparc/kernel/sys_sparc32.c b/arch/sparc/kernel/sys_sparc32.c index daded3b96398..c0ca87553e1c 100644 --- a/arch/sparc/kernel/sys_sparc32.c +++ b/arch/sparc/kernel/sys_sparc32.c @@ -21,7 +21,6 @@ #include #include #include -#include #include #include #include @@ -44,6 +43,7 @@ #include #include #include +#include #include #include diff --git a/arch/sparc/kernel/traps_64.c b/arch/sparc/kernel/traps_64.c index bdc05a21908b..837dfc2390d6 100644 --- a/arch/sparc/kernel/traps_64.c +++ b/arch/sparc/kernel/traps_64.c @@ -17,6 +17,7 @@ #include #include #include +#include #include #include diff --git a/arch/sparc/kernel/vio.c b/arch/sparc/kernel/vio.c index c28c71449a6c..3cb1def9806c 100644 --- a/arch/sparc/kernel/vio.c +++ b/arch/sparc/kernel/vio.c @@ -10,6 +10,7 @@ */ #include +#include #include #include diff --git a/arch/sparc/mm/hugetlbpage.c b/arch/sparc/mm/hugetlbpage.c index f27d10369e0c..5fdddf134caa 100644 --- a/arch/sparc/mm/hugetlbpage.c +++ b/arch/sparc/mm/hugetlbpage.c @@ -10,7 +10,6 @@ #include #include #include -#include #include #include diff --git a/arch/sparc/mm/init_32.c b/arch/sparc/mm/init_32.c index dc7c3b17a15f..6d0e02c4fe09 100644 --- a/arch/sparc/mm/init_32.c +++ b/arch/sparc/mm/init_32.c @@ -24,6 +24,7 @@ #include #include #include +#include #include #include diff --git a/arch/sparc/mm/init_64.c b/arch/sparc/mm/init_64.c index 9245a822a2f1..aaebc4815044 100644 --- a/arch/sparc/mm/init_64.c +++ b/arch/sparc/mm/init_64.c @@ -13,7 +13,6 @@ #include #include #include -#include #include #include #include @@ -26,6 +25,7 @@ #include #include #include +#include #include #include diff --git a/arch/sparc/mm/srmmu.c b/arch/sparc/mm/srmmu.c index df49b200ca4c..f5f75a58e0b3 100644 --- a/arch/sparc/mm/srmmu.c +++ b/arch/sparc/mm/srmmu.c @@ -10,7 +10,6 @@ #include #include -#include #include #include #include @@ -20,6 +19,7 @@ #include #include #include +#include #include #include diff --git a/arch/sparc/mm/sun4c.c b/arch/sparc/mm/sun4c.c index 18652534b91a..cf38846753dd 100644 --- a/arch/sparc/mm/sun4c.c +++ b/arch/sparc/mm/sun4c.c @@ -12,6 +12,7 @@ #include #include #include +#include #include #include #include diff --git a/arch/sparc/mm/tsb.c b/arch/sparc/mm/tsb.c index 36a0813f9517..101d7c82870b 100644 --- a/arch/sparc/mm/tsb.c +++ b/arch/sparc/mm/tsb.c @@ -5,6 +5,7 @@ #include #include +#include #include #include #include -- cgit From b857bd292223f54aaae3693c82fa7299a99991cd Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Wed, 31 Mar 2010 18:05:05 -0700 Subject: sparc: Fix regset register window handling. We have to adjust 'reg_window' down by 16 becuase the 'pos' iterator we'll use to index into the stack slots will be between 16 and 32. Signed-off-by: David S. Miller --- arch/sparc/kernel/ptrace_32.c | 4 ++++ arch/sparc/kernel/ptrace_64.c | 4 ++++ 2 files changed, 8 insertions(+) (limited to 'arch/sparc') diff --git a/arch/sparc/kernel/ptrace_32.c b/arch/sparc/kernel/ptrace_32.c index 7e3dfd9bb97e..e608f397e11f 100644 --- a/arch/sparc/kernel/ptrace_32.c +++ b/arch/sparc/kernel/ptrace_32.c @@ -65,6 +65,7 @@ static int genregs32_get(struct task_struct *target, *k++ = regs->u_regs[pos++]; reg_window = (unsigned long __user *) regs->u_regs[UREG_I6]; + reg_window -= 16; for (; count > 0 && pos < 32; count--) { if (get_user(*k++, ®_window[pos++])) return -EFAULT; @@ -76,6 +77,7 @@ static int genregs32_get(struct task_struct *target, } reg_window = (unsigned long __user *) regs->u_regs[UREG_I6]; + reg_window -= 16; for (; count > 0 && pos < 32; count--) { if (get_user(reg, ®_window[pos++]) || put_user(reg, u++)) @@ -141,6 +143,7 @@ static int genregs32_set(struct task_struct *target, regs->u_regs[pos++] = *k++; reg_window = (unsigned long __user *) regs->u_regs[UREG_I6]; + reg_window -= 16; for (; count > 0 && pos < 32; count--) { if (put_user(*k++, ®_window[pos++])) return -EFAULT; @@ -153,6 +156,7 @@ static int genregs32_set(struct task_struct *target, } reg_window = (unsigned long __user *) regs->u_regs[UREG_I6]; + reg_window -= 16; for (; count > 0 && pos < 32; count--) { if (get_user(reg, u++) || put_user(reg, ®_window[pos++])) diff --git a/arch/sparc/kernel/ptrace_64.c b/arch/sparc/kernel/ptrace_64.c index 2f6524d1a817..aa90da08bf61 100644 --- a/arch/sparc/kernel/ptrace_64.c +++ b/arch/sparc/kernel/ptrace_64.c @@ -492,6 +492,7 @@ static int genregs32_get(struct task_struct *target, *k++ = regs->u_regs[pos++]; reg_window = (compat_ulong_t __user *) regs->u_regs[UREG_I6]; + reg_window -= 16; if (target == current) { for (; count > 0 && pos < 32; count--) { if (get_user(*k++, ®_window[pos++])) @@ -516,6 +517,7 @@ static int genregs32_get(struct task_struct *target, } reg_window = (compat_ulong_t __user *) regs->u_regs[UREG_I6]; + reg_window -= 16; if (target == current) { for (; count > 0 && pos < 32; count--) { if (get_user(reg, ®_window[pos++]) || @@ -599,6 +601,7 @@ static int genregs32_set(struct task_struct *target, regs->u_regs[pos++] = *k++; reg_window = (compat_ulong_t __user *) regs->u_regs[UREG_I6]; + reg_window -= 16; if (target == current) { for (; count > 0 && pos < 32; count--) { if (put_user(*k++, ®_window[pos++])) @@ -625,6 +628,7 @@ static int genregs32_set(struct task_struct *target, } reg_window = (compat_ulong_t __user *) regs->u_regs[UREG_I6]; + reg_window -= 16; if (target == current) { for (; count > 0 && pos < 32; count--) { if (get_user(reg, u++) || -- cgit From 33cd9dfa3a13e3d8e41aef225a9f98169816723b Mon Sep 17 00:00:00 2001 From: Ben Hutchings Date: Sat, 3 Apr 2010 13:58:45 -0700 Subject: sparc64: Fix array size reported by vmemmap_populate() vmemmap_populate() attempts to report the used index and total size of vmemmap_table, but it wrongly shifts the total size so that it is always shown as 0. Signed-off-by: Ben Hutchings Signed-off-by: David S. Miller --- arch/sparc/mm/init_64.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'arch/sparc') diff --git a/arch/sparc/mm/init_64.c b/arch/sparc/mm/init_64.c index 9245a822a2f1..20beb806a537 100644 --- a/arch/sparc/mm/init_64.c +++ b/arch/sparc/mm/init_64.c @@ -2117,7 +2117,7 @@ int __meminit vmemmap_populate(struct page *start, unsigned long nr, int node) "node=%d entry=%lu/%lu\n", start, block, nr, node, addr >> VMEMMAP_CHUNK_SHIFT, - VMEMMAP_SIZE >> VMEMMAP_CHUNK_SHIFT); + VMEMMAP_SIZE); } } return 0; -- cgit From 3f6c148df42d98f0991baf4353497d380a30bc19 Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Sat, 3 Apr 2010 16:18:32 -0700 Subject: sparc64: Update defconfig. Signed-off-by: David S. Miller --- arch/sparc/configs/sparc64_defconfig | 28 ++++++++++++++++------------ 1 file changed, 16 insertions(+), 12 deletions(-) (limited to 'arch/sparc') diff --git a/arch/sparc/configs/sparc64_defconfig b/arch/sparc/configs/sparc64_defconfig index 56e3163673e3..259e3fd50993 100644 --- a/arch/sparc/configs/sparc64_defconfig +++ b/arch/sparc/configs/sparc64_defconfig @@ -1,7 +1,7 @@ # # Automatically generated make config: don't edit -# Linux kernel version: 2.6.33 -# Wed Mar 3 02:54:29 2010 +# Linux kernel version: 2.6.34-rc3 +# Sat Apr 3 15:49:56 2010 # CONFIG_64BIT=y CONFIG_SPARC=y @@ -23,6 +23,7 @@ CONFIG_NEED_PER_CPU_EMBED_FIRST_CHUNK=y 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_ARCH_NO_VIRT_TO_BUS=y CONFIG_OF=y CONFIG_ARCH_SUPPORTS_DEBUG_PAGEALLOC=y @@ -439,6 +440,7 @@ CONFIG_MISC_DEVICES=y # CONFIG_ENCLOSURE_SERVICES is not set # CONFIG_HP_ILO is not set # CONFIG_ISL29003 is not set +# CONFIG_SENSORS_TSL2550 is not set # CONFIG_DS1682 is not set # CONFIG_C2PORT is not set @@ -511,6 +513,7 @@ CONFIG_BLK_DEV_IDEDMA=y # # SCSI device support # +CONFIG_SCSI_MOD=y CONFIG_RAID_ATTRS=m CONFIG_SCSI=y CONFIG_SCSI_DMA=y @@ -888,6 +891,7 @@ CONFIG_SERIAL_SUNHV=y CONFIG_SERIAL_CORE=y CONFIG_SERIAL_CORE_CONSOLE=y # CONFIG_SERIAL_JSM is not set +# CONFIG_SERIAL_TIMBERDALE is not set # CONFIG_SERIAL_GRLIB_GAISLER_APBUART is not set CONFIG_UNIX98_PTYS=y # CONFIG_DEVPTS_MULTIPLE_INSTANCES is not set @@ -935,6 +939,7 @@ CONFIG_I2C_ALGOBIT=y # # CONFIG_I2C_OCORES is not set # CONFIG_I2C_SIMTEC is not set +# CONFIG_I2C_XILINX is not set # # External I2C/SMBus adapter drivers @@ -948,15 +953,9 @@ CONFIG_I2C_ALGOBIT=y # # CONFIG_I2C_PCA_PLATFORM is not set # CONFIG_I2C_STUB is not set - -# -# Miscellaneous I2C Chip support -# -# CONFIG_SENSORS_TSL2550 is not set # CONFIG_I2C_DEBUG_CORE is not set # CONFIG_I2C_DEBUG_ALGO is not set # CONFIG_I2C_DEBUG_BUS is not set -# CONFIG_I2C_DEBUG_CHIP is not set # CONFIG_SPI is not set # @@ -982,10 +981,11 @@ CONFIG_HWMON=y # CONFIG_SENSORS_ADM1029 is not set # CONFIG_SENSORS_ADM1031 is not set # CONFIG_SENSORS_ADM9240 is not set +# CONFIG_SENSORS_ADT7411 is not set # CONFIG_SENSORS_ADT7462 is not set # CONFIG_SENSORS_ADT7470 is not set -# CONFIG_SENSORS_ADT7473 is not set # CONFIG_SENSORS_ADT7475 is not set +# CONFIG_SENSORS_ASC7621 is not set # CONFIG_SENSORS_ATXP1 is not set # CONFIG_SENSORS_DS1621 is not set # CONFIG_SENSORS_I5K_AMB is not set @@ -1052,18 +1052,21 @@ CONFIG_SSB_POSSIBLE=y # Multifunction device drivers # # 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_TWL4030_CORE is not set # CONFIG_MFD_TMIO is not set # CONFIG_PMIC_DA903X is not set # CONFIG_PMIC_ADP5520 is not set +# CONFIG_MFD_MAX8925 is not set # CONFIG_MFD_WM8400 is not set # CONFIG_MFD_WM831X is not set # 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_MFD_88PM8607 is not set +# CONFIG_LPC_SCH is not set # CONFIG_REGULATOR is not set # CONFIG_MEDIA_SUPPORT is not set @@ -1113,6 +1116,7 @@ CONFIG_FB_FFB=y # CONFIG_FB_LEO is not set CONFIG_FB_XVR500=y CONFIG_FB_XVR2500=y +CONFIG_FB_XVR1000=y # CONFIG_FB_S1D13XXX is not set # CONFIG_FB_NVIDIA is not set # CONFIG_FB_RIVA is not set @@ -1430,7 +1434,6 @@ CONFIG_USB_STORAGE=m # CONFIG_USB_RIO500 is not set # CONFIG_USB_LEGOTOWER is not set # CONFIG_USB_LCD is not set -# CONFIG_USB_BERRY_CHARGE is not set # CONFIG_USB_LED is not set # CONFIG_USB_CYPRESS_CY7C63 is not set # CONFIG_USB_CYTHERM is not set @@ -1443,7 +1446,6 @@ CONFIG_USB_STORAGE=m # CONFIG_USB_IOWARRIOR is not set # CONFIG_USB_TEST is not set # CONFIG_USB_ISIGHTFW is not set -# CONFIG_USB_VST is not set # CONFIG_USB_GADGET is not set # @@ -1610,6 +1612,7 @@ CONFIG_MISC_FILESYSTEMS=y # CONFIG_BEFS_FS is not set # CONFIG_BFS_FS is not set # CONFIG_EFS_FS is not set +# CONFIG_LOGFS is not set # CONFIG_CRAMFS is not set # CONFIG_SQUASHFS is not set # CONFIG_VXFS_FS is not set @@ -1624,6 +1627,7 @@ CONFIG_NETWORK_FILESYSTEMS=y # CONFIG_NFS_FS is not set # CONFIG_NFSD is not set # CONFIG_SMB_FS is not set +# CONFIG_CEPH_FS is not set # CONFIG_CIFS is not set # CONFIG_NCP_FS is not set # CONFIG_CODA_FS is not set -- cgit From 954fbc8985328a3b59b5881243d3aa04a8f8da7c Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Sat, 3 Apr 2010 23:50:59 -0700 Subject: sparc64: Implement perf_arch_fetch_caller_regs We provide regs->tstate, regs->tpc, regs->tnpc and regs->u_regs[UREG_FP]. regs->tstate is necessary for: user_mode() (via perf_exclude_event()) perf_misc_flags() (via perf_prepare_sample()) regs->tpc is necessary for: perf_instruction_pointer() (via perf_prepare_sample()) and regs->u_regs[UREG_FP] is necessary for: perf_callchain() (via perf_prepare_sample()) The regs->tnpc value is provided just to be tidy. Signed-off-by: David S. Miller --- arch/sparc/kernel/helpers.S | 75 +++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 75 insertions(+) (limited to 'arch/sparc') diff --git a/arch/sparc/kernel/helpers.S b/arch/sparc/kernel/helpers.S index 314dd0c9fc5b..92090cc9e829 100644 --- a/arch/sparc/kernel/helpers.S +++ b/arch/sparc/kernel/helpers.S @@ -46,6 +46,81 @@ 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 -- cgit