[pull] master from torvalds:master

Documentation/admin-guide/kernel-parameters.txt

@@ -3505,6 +3505,10 @@
 			before loading.
 			See Documentation/blockdev/ramdisk.txt.
 
+	psi=		[KNL] Enable or disable pressure stall information
+			tracking.
+			Format: <bool>
+
 	psmouse.proto=	[HW,MOUSE] Highest PS2 mouse protocol extension to
 			probe for; one of (bare|imps|exps|lifebook|any).
 	psmouse.rate=	[HW,MOUSE] Set desired mouse report rate, in reports

Documentation/arm64/silicon-errata.txt

@@ -57,6 +57,7 @@ stable kernels.
 | ARM            | Cortex-A73      | #858921         | ARM64_ERRATUM_858921        |
 | ARM            | Cortex-A55      | #1024718        | ARM64_ERRATUM_1024718       |
 | ARM            | Cortex-A76      | #1188873        | ARM64_ERRATUM_1188873       |
+| ARM            | Cortex-A76      | #1286807        | ARM64_ERRATUM_1286807       |
 | ARM            | MMU-500         | #841119,#826419 | N/A                         |
 |                |                 |                 |                             |
 | Cavium         | ThunderX ITS    | #22375, #24313  | CAVIUM_ERRATUM_22375        |

MAINTAINERS

@@ -2491,7 +2491,7 @@ F:	drivers/net/wireless/ath/*
 ATHEROS ATH5K WIRELESS DRIVER
 M:	Jiri Slaby <jirislaby@gmail.com>
 M:	Nick Kossifidis <mickflemm@gmail.com>
-M:	"Luis R. Rodriguez" <mcgrof@do-not-panic.com>
+M:	Luis Chamberlain <mcgrof@kernel.org>
 L:	linux-wireless@vger.kernel.org
 W:	http://wireless.kernel.org/en/users/Drivers/ath5k
 S:	Maintained
@@ -2922,7 +2922,7 @@ F:	drivers/staging/vc04_services
 BROADCOM BCM47XX MIPS ARCHITECTURE
 M:	Hauke Mehrtens <hauke@hauke-m.de>
 M:	Rafał Miłecki <zajec5@gmail.com>
-L:	linux-mips@linux-mips.org
+L:	linux-mips@vger.kernel.org
 S:	Maintained
 F:	Documentation/devicetree/bindings/mips/brcm/
 F:	arch/mips/bcm47xx/*
@@ -2986,7 +2986,7 @@ F:	drivers/cpufreq/bmips-cpufreq.c
 BROADCOM BMIPS MIPS ARCHITECTURE
 M:	Kevin Cernekee <cernekee@gmail.com>
 M:	Florian Fainelli <f.fainelli@gmail.com>
-L:	linux-mips@linux-mips.org
+L:	linux-mips@vger.kernel.org
 T:	git git://github.com/broadcom/stblinux.git
 S:	Maintained
 F:	arch/mips/bmips/*
@@ -3124,7 +3124,7 @@ F:	include/uapi/rdma/bnxt_re-abi.h
 
 BROADCOM NVRAM DRIVER
 M:	Rafał Miłecki <zajec5@gmail.com>
-L:	linux-mips@linux-mips.org
+L:	linux-mips@vger.kernel.org
 S:	Maintained
 F:	drivers/firmware/broadcom/*
 
@@ -4226,7 +4226,7 @@ F:	net/decnet/
 
 DECSTATION PLATFORM SUPPORT
 M:	"Maciej W. Rozycki" <macro@linux-mips.org>
-L:	linux-mips@linux-mips.org
+L:	linux-mips@vger.kernel.org
 W:	http://www.linux-mips.org/wiki/DECstation
 S:	Maintained
 F:	arch/mips/dec/
@@ -5317,7 +5317,7 @@ EDAC-CAVIUM OCTEON
 M:	Ralf Baechle <ralf@linux-mips.org>
 M:	David Daney <david.daney@cavium.com>
 L:	linux-edac@vger.kernel.org
-L:	linux-mips@linux-mips.org
+L:	linux-mips@vger.kernel.org
 S:	Supported
 F:	drivers/edac/octeon_edac*
 
@@ -5835,7 +5835,7 @@ F:	include/uapi/linux/firewire*.h
 F:	tools/firewire/
 
 FIRMWARE LOADER (request_firmware)
-M:	Luis R. Rodriguez <mcgrof@kernel.org>
+M:	Luis Chamberlain <mcgrof@kernel.org>
 L:	linux-kernel@vger.kernel.org
 S:	Maintained
 F:	Documentation/firmware_class/
@@ -7764,7 +7764,7 @@ F:	Documentation/devicetree/bindings/iio/gyroscope/invensense,mpu3050.txt
 
 IOC3 ETHERNET DRIVER
 M:	Ralf Baechle <ralf@linux-mips.org>
-L:	linux-mips@linux-mips.org
+L:	linux-mips@vger.kernel.org
 S:	Maintained
 F:	drivers/net/ethernet/sgi/ioc3-eth.c
 
@@ -8135,7 +8135,7 @@ F:	tools/testing/selftests/
 F:	Documentation/dev-tools/kselftest*
 
 KERNEL USERMODE HELPER
-M:	"Luis R. Rodriguez" <mcgrof@kernel.org>
+M:	Luis Chamberlain <mcgrof@kernel.org>
 L:	linux-kernel@vger.kernel.org
 S:	Maintained
 F:	kernel/umh.c
@@ -8192,7 +8192,7 @@ F:	arch/arm64/kvm/
 
 KERNEL VIRTUAL MACHINE FOR MIPS (KVM/mips)
 M:	James Hogan <jhogan@kernel.org>
-L:	linux-mips@linux-mips.org
+L:	linux-mips@vger.kernel.org
 S:	Supported
 F:	arch/mips/include/uapi/asm/kvm*
 F:	arch/mips/include/asm/kvm*
@@ -8311,7 +8311,7 @@ F:	mm/kmemleak.c
 F:	mm/kmemleak-test.c
 
 KMOD KERNEL MODULE LOADER - USERMODE HELPER
-M:	"Luis R. Rodriguez" <mcgrof@kernel.org>
+M:	Luis Chamberlain <mcgrof@kernel.org>
 L:	linux-kernel@vger.kernel.org
 S:	Maintained
 F:	kernel/kmod.c
@@ -8365,7 +8365,7 @@ F:	drivers/net/dsa/lantiq_gswip.c
 
 LANTIQ MIPS ARCHITECTURE
 M:	John Crispin <john@phrozen.org>
-L:	linux-mips@linux-mips.org
+L:	linux-mips@vger.kernel.org
 S:	Maintained
 F:	arch/mips/lantiq
 F:	drivers/soc/lantiq
@@ -8928,7 +8928,7 @@ S:	Maintained
 
 MARDUK (CREATOR CI40) DEVICE TREE SUPPORT
 M:	Rahul Bedarkar <rahulbedarkar89@gmail.com>
-L:	linux-mips@linux-mips.org
+L:	linux-mips@vger.kernel.org
 S:	Maintained
 F:	arch/mips/boot/dts/img/pistachio_marduk.dts
 
@@ -9887,7 +9887,7 @@ F:	drivers/dma/at_xdmac.c
 
 MICROSEMI MIPS SOCS
 M:	Alexandre Belloni <alexandre.belloni@bootlin.com>
-L:	linux-mips@linux-mips.org
+L:	linux-mips@vger.kernel.org
 S:	Maintained
 F:	arch/mips/generic/board-ocelot.c
 F:	arch/mips/configs/generic/board-ocelot.config
@@ -9927,7 +9927,7 @@ MIPS
 M:	Ralf Baechle <ralf@linux-mips.org>
 M:	Paul Burton <paul.burton@mips.com>
 M:	James Hogan <jhogan@kernel.org>
-L:	linux-mips@linux-mips.org
+L:	linux-mips@vger.kernel.org
 W:	http://www.linux-mips.org/
 T:	git git://git.linux-mips.org/pub/scm/ralf/linux.git
 T:	git git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux.git
@@ -9940,7 +9940,7 @@ F:	drivers/platform/mips/
 
 MIPS BOSTON DEVELOPMENT BOARD
 M:	Paul Burton <paul.burton@mips.com>
-L:	linux-mips@linux-mips.org
+L:	linux-mips@vger.kernel.org
 S:	Maintained
 F:	Documentation/devicetree/bindings/clock/img,boston-clock.txt
 F:	arch/mips/boot/dts/img/boston.dts
@@ -9950,15 +9950,15 @@ F:	include/dt-bindings/clock/boston-clock.h
 
 MIPS GENERIC PLATFORM
 M:	Paul Burton <paul.burton@mips.com>
-L:	linux-mips@linux-mips.org
+L:	linux-mips@vger.kernel.org
 S:	Supported
 F:	Documentation/devicetree/bindings/power/mti,mips-cpc.txt
 F:	arch/mips/generic/
 F:	arch/mips/tools/generic-board-config.sh
 
 MIPS/LOONGSON1 ARCHITECTURE
 M:	Keguang Zhang <keguang.zhang@gmail.com>
-L:	linux-mips@linux-mips.org
+L:	linux-mips@vger.kernel.org
 S:	Maintained
 F:	arch/mips/loongson32/
 F:	arch/mips/include/asm/mach-loongson32/
@@ -9967,7 +9967,7 @@ F:	drivers/*/*/*loongson1*
 
 MIPS/LOONGSON2 ARCHITECTURE
 M:	Jiaxun Yang <jiaxun.yang@flygoat.com>
-L:	linux-mips@linux-mips.org
+L:	linux-mips@vger.kernel.org
 S:	Maintained
 F:	arch/mips/loongson64/fuloong-2e/
 F:	arch/mips/loongson64/lemote-2f/
@@ -9977,7 +9977,7 @@ F:	drivers/*/*/*loongson2*
 
 MIPS/LOONGSON3 ARCHITECTURE
 M:	Huacai Chen <chenhc@lemote.com>
-L:	linux-mips@linux-mips.org
+L:	linux-mips@vger.kernel.org
 S:	Maintained
 F:	arch/mips/loongson64/
 F:	arch/mips/include/asm/mach-loongson64/
@@ -9987,7 +9987,7 @@ F:	drivers/*/*/*loongson3*
 
 MIPS RINT INSTRUCTION EMULATION
 M:	Aleksandar Markovic <aleksandar.markovic@mips.com>
-L:	linux-mips@linux-mips.org
+L:	linux-mips@vger.kernel.org
 S:	Supported
 F:	arch/mips/math-emu/sp_rint.c
 F:	arch/mips/math-emu/dp_rint.c
@@ -10972,7 +10972,7 @@ F:	include/linux/platform_data/i2c-omap.h
 
 ONION OMEGA2+ BOARD
 M:	Harvey Hunt <harveyhuntnexus@gmail.com>
-L:	linux-mips@linux-mips.org
+L:	linux-mips@vger.kernel.org
 S:	Maintained
 F:	arch/mips/boot/dts/ralink/omega2p.dts
 
@@ -11881,7 +11881,7 @@ F:	drivers/pinctrl/spear/
 
 PISTACHIO SOC SUPPORT
 M:	James Hartley <james.hartley@sondrel.com>
-L:	linux-mips@linux-mips.org
+L:	linux-mips@vger.kernel.org
 S:	Odd Fixes
 F:	arch/mips/pistachio/
 F:	arch/mips/include/asm/mach-pistachio/
@@ -12061,7 +12061,7 @@ F:	kernel/printk/
 F:	include/linux/printk.h
 
 PRISM54 WIRELESS DRIVER
-M:	"Luis R. Rodriguez" <mcgrof@gmail.com>
+M:	Luis Chamberlain <mcgrof@kernel.org>
 L:	linux-wireless@vger.kernel.org
 W:	http://wireless.kernel.org/en/users/Drivers/p54
 S:	Obsolete
@@ -12075,9 +12075,10 @@ S:	Maintained
 F:	fs/proc/
 F:	include/linux/proc_fs.h
 F:	tools/testing/selftests/proc/
+F:	Documentation/filesystems/proc.txt
 
 PROC SYSCTL
-M:	"Luis R. Rodriguez" <mcgrof@kernel.org>
+M:	Luis Chamberlain <mcgrof@kernel.org>
 M:	Kees Cook <keescook@chromium.org>
 L:	linux-kernel@vger.kernel.org
 L:	linux-fsdevel@vger.kernel.org
@@ -12540,7 +12541,7 @@ F:	drivers/media/usb/rainshadow-cec/*
 
 RALINK MIPS ARCHITECTURE
 M:	John Crispin <john@phrozen.org>
-L:	linux-mips@linux-mips.org
+L:	linux-mips@vger.kernel.org
 S:	Maintained
 F:	arch/mips/ralink
 
@@ -12560,7 +12561,7 @@ F:	drivers/block/brd.c
 
 RANCHU VIRTUAL BOARD FOR MIPS
 M:	Miodrag Dinic <miodrag.dinic@mips.com>
-L:	linux-mips@linux-mips.org
+L:	linux-mips@vger.kernel.org
 S:	Supported
 F:	arch/mips/generic/board-ranchu.c
 F:	arch/mips/configs/generic/board-ranchu.config
@@ -15296,7 +15297,7 @@ F:	arch/um/os-Linux/drivers/
 TURBOCHANNEL SUBSYSTEM
 M:	"Maciej W. Rozycki" <macro@linux-mips.org>
 M:	Ralf Baechle <ralf@linux-mips.org>
-L:	linux-mips@linux-mips.org
+L:	linux-mips@vger.kernel.org
 Q:	http://patchwork.linux-mips.org/project/linux-mips/list/
 S:	Maintained
 F:	drivers/tc/
@@ -16117,7 +16118,7 @@ F:	drivers/net/vmxnet3/
 
 VOCORE VOCORE2 BOARD
 M:	Harvey Hunt <harveyhuntnexus@gmail.com>
-L:	linux-mips@linux-mips.org
+L:	linux-mips@vger.kernel.org
 S:	Maintained
 F:	arch/mips/boot/dts/ralink/vocore2.dts
 

arch/arm64/Kconfig

@@ -497,6 +497,24 @@ config ARM64_ERRATUM_1188873
 
 	  If unsure, say Y.
 
+config ARM64_ERRATUM_1286807
+	bool "Cortex-A76: Modification of the translation table for a virtual address might lead to read-after-read ordering violation"
+	default y
+	select ARM64_WORKAROUND_REPEAT_TLBI
+	help
+	  This option adds workaround for ARM Cortex-A76 erratum 1286807
+
+	  On the affected Cortex-A76 cores (r0p0 to r3p0), if a virtual
+	  address for a cacheable mapping of a location is being
+	  accessed by a core while another core is remapping the virtual
+	  address to a new physical page using the recommended
+	  break-before-make sequence, then under very rare circumstances
+	  TLBI+DSB completes before a read using the translation being
+	  invalidated has been observed by other observers. The
+	  workaround repeats the TLBI+DSB operation.
+
+	  If unsure, say Y.
+
 config CAVIUM_ERRATUM_22375
 	bool "Cavium erratum 22375, 24313"
 	default y
@@ -566,9 +584,16 @@ config QCOM_FALKOR_ERRATUM_1003
 	  is unchanged. Work around the erratum by invalidating the walk cache
 	  entries for the trampoline before entering the kernel proper.
 
+config ARM64_WORKAROUND_REPEAT_TLBI
+	bool
+	help
+	  Enable the repeat TLBI workaround for Falkor erratum 1009 and
+	  Cortex-A76 erratum 1286807.
+
 config QCOM_FALKOR_ERRATUM_1009
 	bool "Falkor E1009: Prematurely complete a DSB after a TLBI"
 	default y
+	select ARM64_WORKAROUND_REPEAT_TLBI
 	help
 	  On Falkor v1, the CPU may prematurely complete a DSB following a
 	  TLBI xxIS invalidate maintenance operation. Repeat the TLBI operation

arch/arm64/include/asm/ftrace.h

@@ -56,6 +56,19 @@ static inline bool arch_trace_is_compat_syscall(struct pt_regs *regs)
 {
 	return is_compat_task();
 }
+
+#define ARCH_HAS_SYSCALL_MATCH_SYM_NAME
+
+static inline bool arch_syscall_match_sym_name(const char *sym,
+					       const char *name)
+{
+	/*
+	 * Since all syscall functions have __arm64_ prefix, we must skip it.
+	 * However, as we described above, we decided to ignore compat
+	 * syscalls, so we don't care about __arm64_compat_ prefix here.
+	 */
+	return !strcmp(sym + 8, name);
+}
 #endif /* ifndef __ASSEMBLY__ */
 
 #endif /* __ASM_FTRACE_H */

arch/arm64/include/asm/tlbflush.h

@@ -41,14 +41,14 @@
 		   ALTERNATIVE("nop\n			nop",		       \
 			       "dsb ish\n		tlbi " #op,	       \
 			       ARM64_WORKAROUND_REPEAT_TLBI,		       \
-			       CONFIG_QCOM_FALKOR_ERRATUM_1009)		       \
+			       CONFIG_ARM64_WORKAROUND_REPEAT_TLBI)	       \
 			    : : )
 
 #define __TLBI_1(op, arg) asm ("tlbi " #op ", %0\n"			       \
 		   ALTERNATIVE("nop\n			nop",		       \
 			       "dsb ish\n		tlbi " #op ", %0",     \
 			       ARM64_WORKAROUND_REPEAT_TLBI,		       \
-			       CONFIG_QCOM_FALKOR_ERRATUM_1009)		       \
+			       CONFIG_ARM64_WORKAROUND_REPEAT_TLBI)	       \
 			    : : "r" (arg))
 
 #define __TLBI_N(op, arg, n, ...) __TLBI_##n(op, arg)

arch/arm64/kernel/cpu_errata.c

@@ -570,6 +570,20 @@ static const struct midr_range arm64_harden_el2_vectors[] = {
 
 #endif
 
+#ifdef CONFIG_ARM64_WORKAROUND_REPEAT_TLBI
+
+static const struct midr_range arm64_repeat_tlbi_cpus[] = {
+#ifdef CONFIG_QCOM_FALKOR_ERRATUM_1009
+	MIDR_RANGE(MIDR_QCOM_FALKOR_V1, 0, 0, 0, 0),
+#endif
+#ifdef CONFIG_ARM64_ERRATUM_1286807
+	MIDR_RANGE(MIDR_CORTEX_A76, 0, 0, 3, 0),
+#endif
+	{},
+};
+
+#endif
+
 const struct arm64_cpu_capabilities arm64_errata[] = {
 #if	defined(CONFIG_ARM64_ERRATUM_826319) || \
 	defined(CONFIG_ARM64_ERRATUM_827319) || \
@@ -695,11 +709,11 @@ const struct arm64_cpu_capabilities arm64_errata[] = {
 		.matches = is_kryo_midr,
 	},
 #endif
-#ifdef CONFIG_QCOM_FALKOR_ERRATUM_1009
+#ifdef CONFIG_ARM64_WORKAROUND_REPEAT_TLBI
 	{
-		.desc = "Qualcomm Technologies Falkor erratum 1009",
+		.desc = "Qualcomm erratum 1009, ARM erratum 1286807",
 		.capability = ARM64_WORKAROUND_REPEAT_TLBI,
-		ERRATA_MIDR_REV(MIDR_QCOM_FALKOR_V1, 0, 0),
+		ERRATA_MIDR_RANGE_LIST(arm64_repeat_tlbi_cpus),
 	},
 #endif
 #ifdef CONFIG_ARM64_ERRATUM_858921