Intel OpenBMC Linux kernel source tree (mirror) https://git.radix-linux.su/BMC/Intel-BMC/linux.git/atom?h=dev-4.4 2015-10-15T09:32:02+00:00 2015-10-15T09:32:02+00:00 Michael Ellerman mpe@ellerman.id.au 2015-10-14T05:58:36+00:00 urn:sha1:ad987fc8eae7b5f4085c5ad2610b9af12018c38a This patch adds a set of new elements to the existing PACA dump list inside an xmon session which can be listed below improving the overall xmon debug support. With this patch, a typical xmon PACA dump looks something like this. paca for cpu 0x0 @ c00000000fdc0000: possible = yes present = yes online = yes lock_token = 0x8000 (0xa) paca_index = 0x0 (0x8) kernel_toc = 0xc000000001393200 (0x10) kernelbase = 0xc000000000000000 (0x18) kernel_msr = 0xb000000000001033 (0x20) emergency_sp = 0xc00000003fff0000 (0x28) mc_emergency_sp = 0xc00000003ffec000 (0x2e0) in_mce = 0x0 (0x2e8) hmi_event_available = 0x0 (0x2ea) data_offset = 0x1fe7b0000 (0x30) hw_cpu_id = 0x0 (0x38) cpu_start = 0x1 (0x3a) kexec_state = 0x0 (0x3b) slb_shadow[0]: = 0xc000000008000000 0x40016e7779000510 slb_shadow[1]: = 0xd000000008000001 0x400142add1000510 vmalloc_sllp = 0x510 (0x1b8) slb_cache_ptr = 0x4 (0x1ba) slb_cache[0]: = 0x000000000003f000 slb_cache[1]: = 0x0000000000000001 slb_cache[2]: = 0x0000000000000003 slb_cache[3]: = 0x0000000000001000 slb_cache[4]: = 0x0000000000001000 slb_cache[5]: = 0x0000000000000000 slb_cache[6]: = 0x0000000000000000 slb_cache[7]: = 0x0000000000000000 dscr_default = 0x0 (0x58) __current = 0xc000000001331e80 (0x290) kstack = 0xc000000001393e30 (0x298) stab_rr = 0x11 (0x2a0) saved_r1 = 0xc0000001fffef5e0 (0x2a8) trap_save = 0x0 (0x2b8) soft_enabled = 0x0 (0x2ba) irq_happened = 0x1 (0x2bb) io_sync = 0x0 (0x2bc) irq_work_pending = 0x0 (0x2bd) nap_state_lost = 0x0 (0x2be) sprg_vdso = 0x0 (0x2c0) tm_scratch = 0x8000000100009033 (0x2c8) core_idle_state_ptr = (null) (0x2d0) thread_idle_state = 0x0 (0x2d8) thread_mask = 0x0 (0x2d9) subcore_sibling_mask = 0x0 (0x2da) user_time = 0x0 (0x2f0) system_time = 0x0 (0x2f8) user_time_scaled = 0x0 (0x300) starttime = 0x3f462418b5cf4 (0x308) starttime_user = 0x3f4622a57092a (0x310) startspurr = 0xd62a5718 (0x318) utime_sspurr = 0x0 (0x320) stolen_time = 0x0 (0x328) Signed-off-by: Anshuman Khandual <khandual@linux.vnet.ibm.com> [mpe: Endian swap slb_shadow before display, minor formatting] Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> 2015-10-15T09:32:02+00:00 Sam bobroff sam.bobroff@au1.ibm.com 2015-10-08T00:50:24+00:00 urn:sha1:0c23a88ccc32db31c31677d70e37b49ef3ae9ed9 The kernel log buffer is often much longer than the size of a terminal so paginate it's output. Signed-off-by: Sam Bobroff <sam.bobroff@au1.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> 2015-10-15T09:32:01+00:00 Sam bobroff sam.bobroff@au1.ibm.com 2015-10-08T00:50:23+00:00 urn:sha1:958b7c80507a6eb847777b0d6d99d2cad08c529c The paca display is already more than 24 lines, which can be problematic if you have an old school 80x24 terminal, or more likely you are on a virtual terminal which does not scroll for whatever reason. This patch adds a new command "#", which takes a single (hex) numeric argument: lines per page. It will cause the output of "dp" and "dpa" to be broken into pages, if necessary. Sample output: 0:mon> # 10 0:mon> dp1 paca for cpu 0x1 @ c00000000fdc0480: possible = yes present = yes online = yes lock_token = 0x8000 (0x8) paca_index = 0x1 (0xa) kernel_toc = 0xc000000000eb2400 (0x10) kernelbase = 0xc000000000000000 (0x18) kernel_msr = 0xb000000000001032 (0x20) emergency_sp = 0xc00000003ffe8000 (0x28) mc_emergency_sp = 0xc00000003ffe4000 (0x2e0) in_mce = 0x0 (0x2e8) data_offset = 0x7f170000 (0x30) hw_cpu_id = 0x8 (0x38) cpu_start = 0x1 (0x3a) kexec_state = 0x0 (0x3b) [Hit a key (a:all, q:truncate, any:next page)] 0:mon> __current = 0xc00000007e696620 (0x290) kstack = 0xc00000007e6ebe30 (0x298) stab_rr = 0xb (0x2a0) saved_r1 = 0xc00000007ef37860 (0x2a8) trap_save = 0x0 (0x2b8) soft_enabled = 0x0 (0x2ba) irq_happened = 0x1 (0x2bb) io_sync = 0x0 (0x2bc) irq_work_pending = 0x0 (0x2bd) nap_state_lost = 0x0 (0x2be) 0:mon> Signed-off-by: Sam Bobroff <sam.bobroff@au1.ibm.com> [mpe: Use bool, make some variables static] Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> 2015-08-12T05:05:47+00:00 Anshuman Khandual khandual@linux.vnet.ibm.com 2015-07-29T07:10:04+00:00 urn:sha1:8218a3031c204b20582ba689aaf3bb6d318779d3 The value of 'valid' is always zero when 'esid' is zero, and if 'esid' is non-zero then the value of 'valid' is irrelevant because we are using logical or in the if expression. In fact 'valid' can be dropped completely from dump_segments() by simply doing the check with SLB_ESID_V directly in the if. Signed-off-by: Anshuman Khandual <khandual@linux.vnet.ibm.com> [mpe: Rewrite change log] Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> 2015-08-06T05:10:20+00:00 Joe Perches joe@perches.com 2015-06-29T21:30:39+00:00 urn:sha1:a825ac078b50266fb09168547752dd73c2fd4b4a break; break; isn't useful. Remove one. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> 2015-02-12T02:15:38+00:00 Linus Torvalds torvalds@linux-foundation.org 2015-02-12T02:15:38+00:00 urn:sha1:d3f180ea1a44aecba1b0dab2a253428e77f906bf Pull powerpc updates from Michael Ellerman: - Update of all defconfigs - Addition of a bunch of config options to modernise our defconfigs - Some PS3 updates from Geoff - Optimised memcmp for 64 bit from Anton - Fix for kprobes that allows 'perf probe' to work from Naveen - Several cxl updates from Ian & Ryan - Expanded support for the '24x7' PMU from Cody & Sukadev - Freescale updates from Scott: "Highlights include 8xx optimizations, some more work on datapath device tree content, e300 machine check support, t1040 corenet error reporting, and various cleanups and fixes" * tag 'powerpc-3.20-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mpe/linux: (102 commits) cxl: Add missing return statement after handling AFU errror cxl: Fail AFU initialisation if an invalid configuration record is found cxl: Export optional AFU configuration record in sysfs powerpc/mm: Warn on flushing tlb page in kernel context powerpc/powernv: Add OPAL soft-poweroff routine powerpc/perf/hv-24x7: Document sysfs event description entries powerpc/perf/hv-gpci: add the remaining gpci requests powerpc/perf/{hv-gpci, hv-common}: generate requests with counters annotated powerpc/perf/hv-24x7: parse catalog and populate sysfs with events perf: define EVENT_DEFINE_RANGE_FORMAT_LITE helper perf: add PMU_EVENT_ATTR_STRING() helper perf: provide sysfs_show for struct perf_pmu_events_attr powerpc/kernel: Avoid initializing device-tree pointer twice powerpc: Remove old compile time disabled syscall tracing code powerpc/kernel: Make syscall_exit a local label cxl: Fix device_node reference counting powerpc/mm: bail out early when flushing TLB page powerpc: defconfigs: add MTD_SPI_NOR (new dependency for M25P80) perf/powerpc: reset event hw state when adding it to the PMU powerpc/qe: Use strlcpy() ... 2015-01-18T22:58:16+00:00 Laurent Dufour ldufour@linux.vnet.ibm.com 2015-01-15T17:23:47+00:00 urn:sha1:e6eb2eba494d6f99e69ca3c3748cd37a2544ab38 The commit 3b8a3c010969 ("powerpc/pseries: Fix endiannes issue in RTAS call from xmon") was fixing an endianness issue in the call made from xmon to RTAS. However, as Michael Ellerman noticed, this fix was not complete, the token value was not byte swapped. This lead to call an unexpected and most of the time unexisting RTAS function, which is silently ignored by RTAS. This fix addresses this hole. Reported-by: Michael Ellerman <mpe@ellerman.id.au> Cc: stable@vger.kernel.org Signed-off-by: Laurent Dufour <ldufour@linux.vnet.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> 2014-12-29T04:45:43+00:00 Vincent Bernat vincent@bernat.im 2014-07-15T11:43:47+00:00 urn:sha1:05b981f493e07856371ecd4a9294f187f5b50cf6 isxdigit() macro definition is the same. isalnum() from linux/ctype.h will accept additional latin non-ASCII characters. This is harmless since this macro is used in scanhex() which parses user input. isspace() from linux/ctype.h will accept vertical tab and form feed but not NULL. The use of this macro is modified to accept NULL as well. Additional characters are harmless since this macro is also only used in scanhex(). Signed-off-by: Vincent Bernat <vincent@bernat.im> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> 2014-12-12T01:48:14+00:00 Linus Torvalds torvalds@linux-foundation.org 2014-12-12T01:48:14+00:00 urn:sha1:140cd7fb04a4a2bc09a30980bc8104cc89e09330 Pull powerpc updates from Michael Ellerman: "Some nice cleanups like removing bootmem, and removal of __get_cpu_var(). There is one patch to mm/gup.c. This is the generic GUP implementation, but is only used by us and arm(64). We have an ack from Steve Capper, and although we didn't get an ack from Andrew he told us to take the patch through the powerpc tree. There's one cxl patch. This is in drivers/misc, but Greg said he was happy for us to manage fixes for it. There is an infrastructure patch to support an IPMI driver for OPAL. There is also an RTC driver for OPAL. We weren't able to get any response from the RTC maintainer, Alessandro Zummo, so in the end we just merged the driver. The usual batch of Freescale updates from Scott" * tag 'powerpc-3.19-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mpe/linux: (101 commits) powerpc/powernv: Return to cpu offline loop when finished in KVM guest powerpc/book3s: Fix partial invalidation of TLBs in MCE code. powerpc/mm: don't do tlbie for updatepp request with NO HPTE fault powerpc/xmon: Cleanup the breakpoint flags powerpc/xmon: Enable HW instruction breakpoint on POWER8 powerpc/mm/thp: Use tlbiel if possible powerpc/mm/thp: Remove code duplication powerpc/mm/hugetlb: Sanity check gigantic hugepage count powerpc/oprofile: Disable pagefaults during user stack read powerpc/mm: Check for matching hpte without taking hpte lock powerpc: Drop useless warning in eeh_init() powerpc/powernv: Cleanup unused MCE definitions/declarations. powerpc/eeh: Dump PHB diag-data early powerpc/eeh: Recover EEH error on ownership change for BCM5719 powerpc/eeh: Set EEH_PE_RESET on PE reset powerpc/eeh: Refactor eeh_reset_pe() powerpc: Remove more traces of bootmem powerpc/pseries: Initialise nvram_pstore_info's buf_lock cxl: Name interrupts in /proc/interrupt cxl: Return error to PSL if IRQ demultiplexing fails & print clearer warning ... 2014-12-02T03:23:04+00:00 Michael Ellerman mpe@ellerman.id.au 2014-12-01T05:54:13+00:00 urn:sha1:abb90ee7bca5af977b90a0c6be44f631fdacc932 Drop BP_IABR_TE, which though used, does not do anything useful. Rename BP_IABR to BP_CIABR. Renumber the flags. Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>