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2017-08-31powerpc: Do not call ppc_md.panic in fadump panic notifierNicholas Piggin6-45/+22
If fadump is not registered, and no other crash or debug handlers are registered, the powerpc panic handler stops the guest before the generic panic code can push out debug information to the console. Currently, system reset injection causes the guest to silently stop. Stop calling ppc_md.panic in the panic notifier. crash_fadump already does rtas_os_term() to terminate the guest if fadump is registered. Remove ppc_md.panic. Move fadump panic notifier into fadump code. Signed-off-by: Nicholas Piggin <npiggin@gmail.com> Reviewed-by: Mahesh Salgaonkar <mahesh@linux.vnet.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2017-08-31powerpc/64: Fix watchdog configuration regressionsNicholas Piggin3-9/+29
This fixes a couple more bits of fallout from the new hard lockup watchdog patch. It restores the required hw_nmi_get_sample_period() function for the perf watchdog, and removes some function declarations on 64e that are only defined for 64s. This fixes the 64e build when the hardlockup detector is enabled. It restores the default behaviour of disabling the perf watchdog, and also fixes disabling the 64s watchdog when running as a guest. Fixes: 2104180a53 ("powerpc/64s: implement arch-specific hardlockup watchdog") Signed-off-by: Nicholas Piggin <npiggin@gmail.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2017-08-31powerpc/64s/radix: Do not allocate SLB shadow structuresNicholas Piggin1-2/+11
These are unused in radix mode. Signed-off-by: Nicholas Piggin <npiggin@gmail.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2017-08-31powerpc/64s/radix: Remove bolted-SLB address limit for per-cpu stacksNicholas Piggin1-3/+8
Radix MMU does not take SLB or TLB interrupts when accessing kernel linear address. Remove this restriction for radix mode. Signed-off-by: Nicholas Piggin <npiggin@gmail.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2017-08-31powerpc/powernv: powernv platform is not constrained by RMANicholas Piggin1-5/+2
Remove incorrect comment about real mode address restrictions on powernv (bare metal), and unnecessary clamping to ppc64_rma_size. Signed-off-by: Nicholas Piggin <npiggin@gmail.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2017-08-29powerpc/64s: idle POWER9 can execute stop in virtual modeNicholas Piggin1-0/+9
The hardware can execute stop in any context, and KVM does not require real mode because siblings do not share MMU state. This saves a switch to real-mode when going idle. Acked-by: Gautham R. Shenoy <ego@linux.vnet.ibm.com> Signed-off-by: Nicholas Piggin <npiggin@gmail.com> Reviewed-by: Paul Mackerras <paulus@ozlabs.org> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2017-08-29powerpc/64s: Drop no longer used IDLE_STATE_ENTER_SEQNicholas Piggin1-4/+1
There are no longer any callers of IDLE_STATE_ENTER_SEQ, all callers use IDLE_STATE_ENTER_SEQ_NORET. So drop the former. Signed-off-by: Nicholas Piggin <npiggin@gmail.com> [mpe: Split out of larger patch, write change log] Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2017-08-29powerpc/64s: POWER9 can execute stop without a sync sequenceNicholas Piggin1-3/+4
We don't need to use IDLE_STATE_ENTER_SEQ_NORET on Power9. Reviewed-by: Gautham R. Shenoy <ego@linux.vnet.ibm.com> Signed-off-by: Nicholas Piggin <npiggin@gmail.com> [mpe: Split out of larger patch] Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2017-08-29powerpc/64s: Move IDLE_STATE_ENTER_SEQ[_NORET] into idle_book3s.SNicholas Piggin2-16/+17
This macro is only used in idle_book3s.S, move it in there and add a more descriptive comment. Signed-off-by: Nicholas Piggin <npiggin@gmail.com> [mpe: Split out of larger patch and write change log] Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2017-08-29Merge branch 'topic/ppc-kvm' into nextMichael Ellerman4-12/+48
Merge Nicks commit to rework the KVM thread management, shared with the KVM tree via the ppc-kvm topic branch.
2017-08-29KVM: PPC: Book3S HV: POWER9 does not require secondary thread managementNicholas Piggin4-12/+48
POWER9 CPUs have independent MMU contexts per thread, so KVM does not need to quiesce secondary threads, so the hwthread_req/hwthread_state protocol does not have to be used. So patch it away on POWER9, and patch away the branch from the Linux idle wakeup to kvm_start_guest that is never used. Add a warning and error out of kvmppc_grab_hwthread in case it is ever called on POWER9. This avoids a hwsync in the idle wakeup path on POWER9. Signed-off-by: Nicholas Piggin <npiggin@gmail.com> Acked-by: Paul Mackerras <paulus@ozlabs.org> [mpe: Use WARN(...) instead of WARN_ON()/pr_err(...)] Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2017-08-28powerpc/configs/6xx: Drop removed CONFIG_USB_LEDMichael Ellerman1-1/+0
In commit a335aaf3125c ("usb: misc: remove outdated USB LED driver") CONFIG_USB_LED was removed, so drop it from our defconfigs. Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2017-08-28powerpc/configs/6xx: Drop no longer selectable CONFIG_BT_HCIUART_LLMichael Ellerman1-1/+0
Since commit 76c4969fecb1 ("Bluetooth: hci_uart: fix kconfig dependency") we can no longer select CONFIG_BT_HCIUART_LL. Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2017-08-28powerpc/configs/c2k: Switch CONFIG_GEN_RTC from =m to =yMichael Ellerman1-1/+1
In commit 835ea93e9d26 ("char/genrtc: remove powerpc support"), CONFIG_GEN_RTC switch from tristate to bool, update the defconfig to match. Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2017-08-28powerpc/configs/6xx: Switch CONFIG_USB_EHCI_FSL to =mMichael Ellerman1-1/+1
In commit ca07e1c1e4a6 ("drivers:usb:fsl:Make fsl ehci drv an independent driver module"), CONFIG_USB_EHCI_FSL was switched from built-in to modular. Update the defconfig. Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2017-08-28powerpc/configs/6xx: Drop no longer needed CONFIG_BT_HCIUART_H4Michael Ellerman1-1/+0
Since commit 943cc592195e ("Bluetooth: bpa10x: Use h4_recv_buf helper for frame reassembly") we no longer need to set CONFIG_BT_HCIUART_H4 in our defconfigs. Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2017-08-28powerpc/configs/6xx: Drop no longer needed CONFIG_NETFILTER_XT_MATCH_SOCKETMichael Ellerman1-1/+0
Since commit 8db4c5be88f6 ("netfilter: move socket lookup infrastructure to nf_socket_ipv{4,6}.c") we no longer need to set CONFIG_NETFILTER_XT_MATCH_SOCKET in our defconfigs. Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2017-08-28powerpc/configs/6xx: Reinstate CONFIG_CPU_FREQ_STATMichael Ellerman1-1/+1
In commit 1aefc75b2449 ("cpufreq: stats: Make the stats code non-modular"), the CPU_FREQ_STAT code was made non-modular. Our defconfig still said =m though, which meant we no longer got the code at all. Switch the defconfig to =y. Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2017-08-28powerpc/configs/6xx: Drop no longer needed CONFIG_NF_CONNTRACK_PROC_COMPATMichael Ellerman1-1/+0
Since commit adf0516845bc ("netfilter: remove ip_conntrack* sysctl compat code") we no longer need to set CONFIG_NF_CONNTRACK_PROC_COMPAT in our defconfigs. Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2017-08-28powerpc/configs/6xx: Drop removed CONFIG_BLK_DEV_HDMichael Ellerman1-1/+0
In commit 8e14be53f470 ("remove the obsolete hd driver") the CONFIG_BLK_DEV_HD symbol was removed, so drop it from the defconfig. Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2017-08-28powerpc/configs/6xx: Clean up duplicate CONFIG_EXT4 valuesMichael Ellerman1-2/+1
We had two values for CONFIG_EXT4, =m and =y, just use =y. Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2017-08-28powerpc/configs/6xx: Drop no longer needed CONFIG_TIMER_STATSMichael Ellerman1-1/+0
Since commit dfb4357da6dd ("time: Remove CONFIG_TIMER_STATS") we no longer need to set CONFIG_TIMER_STATS in our defconfigs. Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2017-08-28powerpc/configs/6xx: Turn CONFIG_DRM_RADEON back onMichael Ellerman1-1/+2
In commit d92d9c3a1448 ("drm: hide legacy drivers with CONFIG_DRM_LEGACY") CONFIG_DRM_RADEON was moved behind CONFIG_DRM_LEGACY meaning it stopped being enabled by ppc6xx_defconfig. Although no one has noticed, given this is basically a legacy platform, it seems anyone who is using it probably still wants this driver. So turn it back on for now. Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2017-08-28powerpc/configs/mpc5200: Drop no longer needed CONFIG_FBMichael Ellerman1-2/+0
Since commit a03fdcb18632 ("drm: Add top level Kconfig option for DRM fbdev emulation") we no longer need to set CONFIG_FB in our defconfigs. Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2017-08-28powerpc/configs: Update for CONFIG_INPUT_MOUSEDEV=nMichael Ellerman26-26/+0
In commit 73d8ef76006b ("Input: mousedev - stop offering PS/2 to userspace by default") the symbol INPUT_MOUSEDEV went from being 'default y' to 'default n' (implied). That means we no longer need to explicitly disable it in our defconfigs. Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2017-08-28powerpc/configs: Drop removed CONFIG_LOGFSMichael Ellerman1-1/+0
In commit 1d0fd57a50aa ("logfs: remove from tree"), logfs was removed from the tree, so we can drop it from our defconfigs. Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2017-08-28powerpc/configs: Turn CONFIG_R128 back in pmac32_defconfigMichael Ellerman1-1/+2
In commit d92d9c3a1448 ("drm: hide legacy drivers with CONFIG_DRM_LEGACY") CONFIG_R128 was moved behind CONFIG_DRM_LEGACY meaning it stopped being enabled by pmac32_defconfig. Although no one has noticed, given this is basically a legacy platform, it seems anyone who is using it probably still wants this driver. So turn it back on for now. Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2017-08-28powerpc/configs: Drop no longer needed CONFIG_LIBCRC32CMichael Ellerman1-1/+0
Since commit 300ae149468f ("netfilter: select LIBCRC32C together with SCTP conntrack") we no longer need to set CONFIG_LIBCRC32C in our defconfigs. Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2017-08-28powerpc/configs: Drop unnecessary CONFIG_EDAC from ppc64eMichael Ellerman1-1/+0
There are no EDAC drivers for ppc64e. Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2017-08-28powerpc/configs: Drop no longer needed CONFIG_SCSIMichael Ellerman1-1/+0
Since commit 67f6d6655993 ("powerpc: convert amigaone_defconfig to use libata PATA drivers") we no longer need to set CONFIG_SCSI in our defconfigs. Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2017-08-28powerpc/configs: Drop no longer needed CONFIG_IPV6Michael Ellerman2-2/+0
Since commit de551f2eb22a ("net: Build IPv6 into kernel by default") we no longer need to set CONFIG_IPV6 in our defconfigs. Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2017-08-28powerpc/configs: Add CONFIG_RAS now required for CONFIG_EDACMichael Ellerman2-0/+2
In commit e3c4ff6d8c94 ("EDAC: Remove EDAC_MM_EDAC") CONFIG_EDAC grew a dependency on CONFIG_RAS. Some of our defconfigs don't have the latter, which means we lose CONFIG_EDAC, so add CONFIG_RAS to fix that. Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2017-08-28powerpc/configs: Drop no longer needed CONFIG_AUDITSYSCALLMichael Ellerman1-1/+0
Since commit cb74ed278f80 ("audit: always enable syscall auditing when supported and audit is enabled") we no longer need to set CONFIG_AUDITSYSCALL in our defconfigs. Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2017-08-28powerpc/configs: Drop CONFIG_SERIAL_TXX9_* from cell/ppc64Michael Ellerman2-3/+0
In commit bf4981a00636 ("powerpc: Remove the celleb support") we dropped the celleb support, which made these symbols unselectable because we no longer select HAS_TX99_SERIAL. So drop them from the defconfigs. Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2017-08-28powerpc/configs: Drop MEMORY_HOTREMOVE from ppc64/cellMichael Ellerman2-2/+0
xxxx In commit 577ec789a79e ("powerpc/cell: Drop select of MEMORY_HOTPLUG") we removed the last traces of any dependency between Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2017-08-28powerpc/configs: Drop unnecessary CONFIG_POWERNV_OP_PANELMichael Ellerman1-1/+0
In commit 43a1dd9b5fc6 ("powerpc/powernv: Add driver for operator panel on FSP machines") we added CONFIG_POWERNV_OP_PANEL=m to the powernv defconfig, but it's default m so that's no necessary. Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2017-08-28powerpc/configs: Drop no longer needed PCI_MSI on powernvMichael Ellerman1-1/+0
In commit a311e738b6d8 ("powerpc/powernv: Make PCI non-optional") we made PCI (and therefore PCI_MSI) non-optional on powernv, so it doesn't need to be in the defconfig anymore. Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2017-08-28powerpc/configs: Drop no longer needed CONFIG_SMP for pseries/ppc64/powernvMichael Ellerman3-3/+0
In commit 40e275653e2c ("powerpc/powernv: Always enable SMP when building powernv") and 270e2dc9b803 ("powerpc/pseries: Always enable SMP when building pseries") we forced CONFIG_SMP on for some configs. Therefore we don't need to set it in those configs anymore. Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2017-08-28powerpc/configs: Drop unnecessary CONFIG_UPROBE_EVENTMichael Ellerman3-3/+0
In commit 6b0b7551428e ("perf/core: Rename CONFIG_[UK]PROBE_EVENT to CONFIG_[UK]PROBE_EVENTS") it was renamed to CONFIG_UPROBE_EVENTS. Additionally it's default y, and we have the prerequisites enabled, so we don't need it in our defconfigs. Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2017-08-28powerpc/configs: Drop unnecessary CONFIG_NUMA_BALANCING_DEFAULT_ENABLEDMichael Ellerman1-1/+0
In commit 9654f95a081a ("powerpc: Enable NUMA balancing in pseries[_le]_defconfig") we added CONFIG_NUMA_BALANCING_DEFAULT_ENABLED to our defconfigs. But it's already enabled by default, so drop it. Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2017-08-28powerpc/configs: Drop no longer needed CONFIG_DEVPTS_MULTIPLE_INSTANCESMichael Ellerman2-2/+0
Since commit eedf265aa003 ("devpts: Make each mount of devpts an independent filesystem.") we no longer need to set CONFIG_DEVPTS_MULTIPLE_INSTANCES in our defconfigs. Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2017-08-28powerpc/configs: Drop no longer needed CONFIG_CRYPTO_GCMMichael Ellerman1-1/+0
Since commit 00b9cfa3ff38 ("mac80111: Add GCMP and GCMP-256 ciphers") we no longer need to set CONFIG_CRYPTO_GCM in our defconfigs. Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2017-08-28powerpc/configs: Drop no longer needed CONFIG_CRYPTO_NULL in g5 / c2kMichael Ellerman2-2/+0
Since commit 3491244c6298 ("crypto: echainiv - Set Kconfig default to m") we no longer need to set CONFIG_CRYPTO_NULL in our defconfigs. Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2017-08-28powerpc/configs: Drop no longer needed CONFIG_CRYPTO_NULLMichael Ellerman1-1/+0
Since commit 00b9cfa3ff38 ("mac80111: Add GCMP and GCMP-256 ciphers") we no longer need to set CONFIG_CRYPTO_NULL in our defconfigs. Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2017-08-28powerpc/configs: Drop no longer needed CONFIG_CRYPTO_SHA256Michael Ellerman4-4/+0
Since commit 826775bbf38f ("crypto: drbg - Add select on sha256") we no longer need to set CONFIG_CRYPTO_SHA256 in our defconfigs. Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2017-08-28powerpc/configs: Drop no longer needed CONFIG_CRYPTO_ECBMichael Ellerman2-2/+0
Since commit 12cb3a1c4184 ("crypto: xts - Add ECB dependency") we no longer need to set CONFIG_CRYPTO_ECB in our defconfigs. Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2017-08-28powerpc/configs: Drop no longer needed CONFIG_CRYPTO_HMACMichael Ellerman2-2/+0
Since commit 401e4238f35c ("crypto: rng - Make DRBG the default RNG") we no longer need to set CONFIG_CRYPTO_HMAC in our defconfigs. Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2017-08-28powerpc/configs: Drop no longer needed CONFIG_CRYPTO_DEV_VMX_ENCRYPTMichael Ellerman3-3/+0
Since commit ccf5c442a1b8 ("crypto: vmx - Convert to CPU feature based module autoloading") we no longer need to set CONFIG_CRYPTO_DEV_VMX_ENCRYPT in our defconfigs. Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2017-08-28powerpc/configs: Update for CONFIG_NF_CT_PROTO_(SCTP|UDPLITE)=yMichael Ellerman3-3/+0
In commit a85406afeb3e ("netfilter: conntrack: built-in support for SCTP"), NF_CT_PROTO_SCTP switched from tristate to bool and became default y. Similarly in commit 9b91c96c5d1f ("netfilter: conntrack: built-in support for UDPlite"), NF_CT_PROTO_UDPLITE switched from tristate to bool and became default y. We had a few configs which set them to =m, which is no longer valid. We don't need to change them to =y because both symbols are default y and are enabled automatically based on the other symbols in the affected defconfigs. Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2017-08-28powerpc/configs: Update for CONFIG_FIXED_PHY being selected by CONFIG_OF_MDIOMichael Ellerman10-10/+0
In commit a5e4bd991362 ("of_mdio: select fixed phy support unconditionally"), CONFIG_OF_MDIO began selecting CONFIG_FIXED_PHY. That means we no longer need to set it some of our defconfigs. Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
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