FEX-Emu/linux
1
0
Fork 0
mirror of https://github.com/FEX-Emu/linux.git synced 2025-01-08 02:21:18 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity
b6541db139
linux/arch/powerpc/kernel
History
Gavin Shan b6541db139 powerpc/eeh: Block PCI config access upon frozen PE 
The problem was found when I tried to inject PCI config error by
PHB3 PAPR error injection registers into Broadcom Austin 4-ports
NIC adapter. The frozen PE was reported successfully and EEH core
started to recover it. However, I run into fenced PHB when dumping
PCI config space as EEH logs. I was told that PCI config requests
should not be progagated to the adapter until PE reset is done
successfully. Otherise, we would run out of PHB internal credits
and trigger PCT (PCIE Completion Timeout), which leads to the
fenced PHB.

The patch introduces another PE flag EEH_PE_CFG_RESTRICTED, which
is set during PE initialization time if the PE includes the specific
PCI devices that need block PCI config access until PE reset is done.
When the PE becomes frozen for the first time, EEH_PE_CFG_BLOCKED is
set if the PE has flag EEH_PE_CFG_RESTRICTED. Then the PCI config
access to the PE will be dropped by platform PCI accessors until
PE reset is done successfully. The mechanism is shared by PowerNV
platform owned PE or userland owned ones. It's not used on pSeries
platform yet.

Signed-off-by: Gavin Shan <gwshan@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2014-10-15 11:27:20 +11:00
..
vdso32 powerpc/booke64: Use SPRG7 for VDSO 2014-03-19 19:57:14 -05:00
vdso64 powerpc/booke64: Use SPRG7 for VDSO 2014-03-19 19:57:14 -05:00
.gitignore
align.c KVM: PPC: BOOK3S: Remove open coded make_dsisr in alignment handler 2014-05-30 14:26:25 +02:00
asm-offsets.c Here are the PPC and ARM changes for KVM, which I separated because 2014-08-07 11:35:30 -07:00
audit.c
btext.c
cacheinfo.c powerpc/pseries: Update dynamic cache nodes for suspend/resume operation 2014-03-07 15:54:49 +11:00
cacheinfo.h
compat_audit.c
cpu_setup_6xx.S
cpu_setup_44x.S
cpu_setup_fsl_booke.S powerpc: No need to use dot symbols when branching to a function 2014-04-23 10:05:16 +10:00
cpu_setup_pa6t.S
cpu_setup_power.S powerpc/powernv: Enable POWER8 doorbell IPIs 2014-06-11 17:05:12 +10:00
cpu_setup_ppc970.S
cputable.c powerpc: Remove CLASSIC_PPC 2014-07-28 14:11:22 +10:00
crash_dump.c powerpc/kdump: crash_dump.c needs to include io.h 2014-10-03 18:03:35 +10:00
crash.c arch,powerpc: Convert smp_mb__*() 2014-04-18 14:20:41 +02:00
dbell.c
dma-iommu.c
dma-swiotlb.c powerpc/64: Limit ZONE_DMA32 to 4GiB in swiotlb_detect_4g() 2014-09-03 17:58:22 -05:00
dma.c Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/scottwood/linux.git 2014-10-04 08:59:06 +10:00
eeh_cache.c powerpc/eeh: Replace pr_warning() with pr_warn() 2014-08-05 15:41:34 +10:00
eeh_dev.c powerpc/eeh: Replace pr_warning() with pr_warn() 2014-08-05 15:41:34 +10:00
eeh_driver.c powerpc/eeh: Rename flag EEH_PE_RESET to EEH_PE_CFG_BLOCKED 2014-10-15 11:27:18 +11:00
eeh_event.c powerpc/powernv: Fix killed EEH event 2014-06-11 17:04:33 +10:00
eeh_pe.c powerpc/eeh: Block PCI config access upon frozen PE 2014-10-15 11:27:20 +11:00
eeh_sysfs.c powerpc/eeh: Show hex prefix for PE state sysfs 2014-10-01 22:23:34 +10:00
eeh.c powerpc/eeh: Rename flag EEH_PE_RESET to EEH_PE_CFG_BLOCKED 2014-10-15 11:27:18 +11:00
entry_32.S
entry_64.S powerpc/book3s: Add basic infrastructure to handle HMI in Linux. 2014-08-05 16:33:48 +10:00
epapr_hcalls.S
epapr_paravirt.c Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc 2014-06-10 18:54:22 -07:00
exceptions-64e.S powerpc: Remove platforms/wsp and associated pieces 2014-06-11 16:35:38 +10:00
exceptions-64s.S powerpc/book3s: Don't clear MSR_RI in hmi handler. 2014-10-10 17:25:25 +11:00
fadump.c Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc 2014-06-10 18:54:22 -07:00
firmware.c
fpu.S
fsl_booke_entry_mapping.S
ftrace.c powerpc/ftrace: Add call to ftrace_graph_is_dead() in function graph code 2014-07-18 13:56:56 -04:00
head_8xx.S powerpc/8xx: Duplicate two insns instead of branching 2014-09-04 19:28:56 -05:00
head_32.S
head_40x.S powerpc: Remove check for CONFIG_SERIAL_TEXT_DEBUG 2014-06-11 16:31:21 +10:00
head_44x.S powerpc/ppc476: Disable BTAC 2014-08-13 15:13:42 +10:00
head_64.S Merge remote-tracking branch 'scott/next' into next 2014-08-05 14:13:41 +10:00
head_booke.h
head_fsl_booke.S
hw_breakpoint.c powerpc: Make a bunch of things static 2014-09-25 23:14:41 +10:00
ibmebus.c powerpc: make of_device_ids const 2014-09-25 23:14:46 +10:00
idle_6xx.S
idle_book3e.S powerpc: No need to use dot symbols when branching to a function 2014-04-23 10:05:16 +10:00
idle_e500.S
idle_power4.S powerpc: No need to use dot symbols when branching to a function 2014-04-23 10:05:16 +10:00
idle_power7.S powerpc/powernv: Don't call generic code on offline cpus 2014-09-25 23:14:50 +10:00
idle.c
io-workarounds.c
io.c
iomap.c powerpc/kerenl: Enable EEH for IO accessors 2014-06-24 12:43:13 +10:00
iommu.c powerpc/powernv: Fix IOMMU group lost 2014-08-13 15:13:42 +10:00
irq.c powerpc: Rename __get_SP() to current_stack_pointer() 2014-10-15 11:23:20 +11:00
isa-bridge.c
jump_label.c
kgdb.c
kprobes.c powerpc/kprobes: Fix jprobes on ABI v2 (LE) 2014-06-24 14:05:55 +10:00
kvm_emul.S
kvm.c At over 200 commits, covering almost all supported architectures, this 2014-06-04 08:47:12 -07:00
l2cr_6xx.S
legacy_serial.c powerpc: make of_device_ids const 2014-09-25 23:14:46 +10:00
machine_kexec_32.c
machine_kexec_64.c powerpc, kexec: Fix "Processor X is stuck" issue during kexec from ST mode 2014-05-28 13:24:26 +10:00
machine_kexec.c
Makefile powerpc: Separate ppc32 symbol exports into ppc_ksyms_32.c 2014-09-25 23:14:40 +10:00
mce_power.c powerpc/book3s: Recover from MC in sapphire on SCOM read via MMIO. 2014-03-07 15:52:10 +11:00
mce.c powerpc/book3s: Recover from MC in sapphire on SCOM read via MMIO. 2014-03-07 15:52:10 +11:00
misc_32.S
misc_64.S powerpc: module: handle MODVERSION for .TOC. 2014-04-23 10:05:28 +10:00
misc.S powerpc: Rename __get_SP() to current_stack_pointer() 2014-10-15 11:23:20 +11:00
module_32.c powerpc: Use pr_fmt in module loader code 2014-10-02 17:33:54 +10:00
module_64.c powerpc: Use pr_fmt in module loader code 2014-10-02 17:33:54 +10:00
module.c
msi.c
nvram_64.c powerpc: Make a bunch of things static 2014-09-25 23:14:41 +10:00
of_platform.c powerpc: make of_device_ids const 2014-09-25 23:14:46 +10:00
paca.c KVM: PPC: Book3S PR: Rework SLB switching code 2014-05-30 14:26:30 +02:00
pci_32.c
pci_64.c powerpc/PCI: Fix NULL dereference in sys_pciconfig_iobase() list traversal 2014-04-14 16:33:49 -06:00
pci_dn.c
pci_of_scan.c powerpc: Make a bunch of things static 2014-09-25 23:14:41 +10:00
pci-common.c powerpc/pci: remove duplicate declaration of pci_bus_find_capability 2014-10-03 17:27:38 +10:00
pci-hotplug.c powerpc/PCI: Use pci_is_bridge() to simplify code 2014-05-27 14:57:36 -06:00
pmc.c
ppc32.h
ppc_ksyms_32.c powerpc: Separate ppc32 symbol exports into ppc_ksyms_32.c 2014-09-25 23:14:40 +10:00
ppc_ksyms.c powerpc: Rename __get_SP() to current_stack_pointer() 2014-10-15 11:23:20 +11:00
ppc_save_regs.S
proc_powerpc.c
process.c powerpc: Rename __get_SP() to current_stack_pointer() 2014-10-15 11:23:20 +11:00
prom_init_check.sh powerpc: Simplify symbol check in prom_init_check.sh 2014-09-25 23:14:46 +10:00
prom_init.c powerpc/powernv: Remove OPAL v1 takeover 2014-06-25 13:10:47 +10:00
prom_parse.c
prom.c powerpc: Remove powerpc specific cmd_line 2014-10-02 17:33:55 +10:00
ptrace32.c
ptrace.c powerpc: Make a bunch of things static 2014-09-25 23:14:41 +10:00
reloc_32.S
reloc_64.S powerpc: Align p_dyn, p_rela and p_st symbols 2014-03-07 13:50:19 +11:00
rtas_flash.c powerpc: Fix endianness of flash_block_list in rtas_flash 2014-07-28 11:30:54 +10:00
rtas_pci.c powerpc/pseries: Drop config requests in EEH accessors 2014-10-15 11:27:19 +11:00
rtas-proc.c
rtas-rtc.c
rtas.c of/fdt: update of_get_flat_dt_prop in prep for libfdt 2014-04-30 00:59:15 -05:00
rtasd.c powerpc: Make a bunch of things static 2014-09-25 23:14:41 +10:00
setup_32.c powerpc: Remove powerpc specific cmd_line 2014-10-02 17:33:55 +10:00
setup_64.c powerpc: Remove powerpc specific cmd_line 2014-10-02 17:33:55 +10:00
setup-common.c powerpc: Add printk levels to powerpc code 2014-10-02 17:33:55 +10:00
signal_32.c powerpc: Use sigsp() 2014-08-06 13:04:32 +02:00
signal_64.c powerpc: Use sigsp() 2014-08-06 13:04:32 +02:00
signal.c powerpc: Use sigsp() 2014-08-06 13:04:32 +02:00
signal.h powerpc: Use get_signal() signal_setup_done() 2014-08-06 13:03:09 +02:00
smp-tbsync.c
smp.c powerpc: Only set numa node information for present cpus at boottime 2014-09-25 23:14:53 +10:00
stacktrace.c powerpc: Rename __get_SP() to current_stack_pointer() 2014-10-15 11:23:20 +11:00
suspend.c
swsusp_32.S
swsusp_64.c
swsusp_asm64.S
swsusp_booke.S
swsusp.c
sys_ppc32.c
syscalls.c
sysfs.c powerpc: Fix regression of per-CPU DSCR setting 2014-05-28 13:35:40 +10:00
systbl_chk.c
systbl_chk.sh
systbl.S powerpc: Use standard macros for sys_sigpending() & sys_old_getrlimit() 2014-07-28 14:09:23 +10:00
tau_6xx.c
time.c powerpc: Make a bunch of things static 2014-09-25 23:14:41 +10:00
tm.S powerpc: Fix regression of per-CPU DSCR setting 2014-05-28 13:35:40 +10:00
traps.c powerpc/book3s: Add basic infrastructure to handle HMI in Linux. 2014-08-05 16:33:48 +10:00
udbg_16550.c powerpc: Remove platforms/wsp and associated pieces 2014-06-11 16:35:38 +10:00
udbg.c powerpc: Remove platforms/wsp and associated pieces 2014-06-11 16:35:38 +10:00
uprobes.c
vdso.c arm64,ia64,ppc,s390,sh,tile,um,x86,mm: remove default gate area 2014-08-08 15:57:27 -07:00
vecemu.c
vector.S
vio.c arch/powerpc: replace obsolete strict_strto* calls 2014-08-08 15:57:28 -07:00
vmlinux.lds.S