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Merge tag 'arc-5.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc

Browse Source 
Pull ARC updates from Vineet Gupta

 - Jump Label support for ARC

 - kmemleak enabled

 - arc mm backend TLB Miss / flush optimizations

 - nSIM platform switching to dwuart (vs. arcuart) and ensuing defconfig
   updates and cleanups

 - axs platform pll / video-mode updates

* tag 'arc-5.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc:
  ARC: add kmemleak support
  ARC: [plat-axs10x]: remove hardcoded video mode from bootargs
  ARC: [plat-axs10x]: use pgu pll instead of fixed clock
  ARC: ARCv2: jump label: implement jump label patching
  ARC: mm: tlb flush optim: elide redundant uTLB invalidates for MMUv3
  ARC: mm: tlb flush optim: elide repeated uTLB invalidate in loop
  ARC: mm: tlb flush optim: Make TLBWriteNI fallback to TLBWrite if not available
  ARC: mm: TLB Miss optim: avoid re-reading ECR
  ARCv2: mm: TLB Miss optim: Use double world load/stores LDD/STD
  ARCv2: mm: TLB Miss optim: SMP builds can cache pgd pointer in mmu scratch reg
  ARC: nSIM_700: remove unused network options
  ARC: nSIM_700: switch to DW UART usage
  ARC: merge HAPS-HS with nSIM-HS configs
  ARC: HAPS: cleanup defconfigs from unused ETH drivers
  ARC: HAPS: add HIGHMEM memory zone to DTS
  ARC: HAPS: use same UART configuration everywhere
  ARC: HAPS: cleanup defconfigs from unused IO-related options
  ARC: regenerate nSIM and HAPS defconfigs
This commit is contained in:
Linus Torvalds
2019-12-04 19:06:18 -08:00
parent aedc0650f9 9fbea0b7e8
commit 056df578c2
27 changed files with 363 additions and 411 deletions
Download Patch File Download Diff File Expand all files Collapse all files
arch/arc/Kconfig
+9
View File
@@ -29,6 +29,7 @@ config ARC
select HAVE_ARCH_KGDB
select HAVE_ARCH_TRACEHOOK
select HAVE_DEBUG_STACKOVERFLOW
select HAVE_DEBUG_KMEMLEAK
select HAVE_FUTEX_CMPXCHG if FUTEX
select HAVE_IOREMAP_PROT
select HAVE_KERNEL_GZIP
@@ -45,6 +46,7 @@ config ARC
select OF_EARLY_FLATTREE
select PCI_SYSCALL if PCI
select PERF_USE_VMALLOC if ARC_CACHE_VIPT_ALIASING
select HAVE_ARCH_JUMP_LABEL if ISA_ARCV2 && !CPU_ENDIAN_BE32
config ARCH_HAS_CACHE_LINE_SIZE
def_bool y
@@ -524,6 +526,13 @@ config ARC_DW2_UNWIND
config ARC_DBG_TLB_PARANOIA
bool "Paranoia Checks in Low Level TLB Handlers"
config ARC_DBG_JUMP_LABEL
bool "Paranoid checks in Static Keys (jump labels) code"
depends on JUMP_LABEL
default y if STATIC_KEYS_SELFTEST
help
Enable paranoid checks and self-test of both ARC-specific and generic
part of static keys (jump labels) related code.
endif
config ARC_BUILTIN_DTB_NAME
arch/arc/Makefile
+1 -1
View File
@@ -3,7 +3,7 @@
# Copyright (C) 2004, 2007-2010, 2011-2012 Synopsys, Inc. (www.synopsys.com)
#
KBUILD_DEFCONFIG := nsim_hs_defconfig
KBUILD_DEFCONFIG := haps_hs_smp_defconfig
ifeq ($(CROSS_COMPILE),)
CROSS_COMPILE := $(call cc-cross-prefix, arc-linux- arceb-linux-)
arch/arc/boot/dts/axc001.dtsi
+6
View File
@@ -28,6 +28,12 @@
clock-frequency = <750000000>;
};
input_clk: input-clk {
#clock-cells = <0>;
compatible = "fixed-clock";
clock-frequency = <33333333>;
};
core_intc: arc700-intc@cpu {
compatible = "snps,arc700-intc";
interrupt-controller;
arch/arc/boot/dts/axs101.dts
+1 -1
View File
@@ -14,6 +14,6 @@
compatible = "snps,axs101", "snps,arc-sdp";
chosen {
bootargs = "earlycon=uart8250,mmio32,0xe0022000,115200n8 console=tty0 console=ttyS3,115200n8 consoleblank=0 video=1280x720@60 print-fatal-signals=1";
bootargs = "earlycon=uart8250,mmio32,0xe0022000,115200n8 console=tty0 console=ttyS3,115200n8 consoleblank=0 print-fatal-signals=1";
};
};
arch/arc/boot/dts/axs103_idu.dts
+1 -1
View File
@@ -17,6 +17,6 @@
compatible = "snps,axs103", "snps,arc-sdp";
chosen {
bootargs = "earlycon=uart8250,mmio32,0xe0022000,115200n8 console=tty0 console=ttyS3,115200n8 print-fatal-signals=1 consoleblank=0 video=1280x720@60";
bootargs = "earlycon=uart8250,mmio32,0xe0022000,115200n8 console=tty0 console=ttyS3,115200n8 print-fatal-signals=1 consoleblank=0";
};
};
arch/arc/boot/dts/axs10x_mb.dtsi
+6 -5
View File
@@ -61,12 +61,13 @@
clock-frequency = <25000000>;
#clock-cells = <0>;
};
};
pguclk: pguclk {
#clock-cells = <0>;
compatible = "fixed-clock";
clock-frequency = <74250000>;
};
pguclk: pguclk@10080 {
compatible = "snps,axs10x-pgu-pll-clock";
reg = <0x10080 0x10>, <0x110 0x10>;
#clock-cells = <0>;
clocks = <&input_clk>;
};
gmac: ethernet@18000 {
arch/arc/boot/dts/haps_hs.dts
+9 -6
View File
@@ -9,13 +9,15 @@
/ {
model = "snps,zebu_hs";
compatible = "snps,zebu_hs";
#address-cells = <1>;
#size-cells = <1>;
#address-cells = <2>;
#size-cells = <2>;
interrupt-parent = <&core_intc>;
memory {
device_type = "memory";
reg = <0x80000000 0x20000000>; /* 512 */
/* CONFIG_LINUX_RAM_BASE needs to match low mem start */
reg = <0x0 0x80000000 0x0 0x20000000 /* 512 MB low mem */
0x1 0x00000000 0x0 0x40000000>; /* 1 GB highmem */
};
chosen {
@@ -31,8 +33,9 @@
#address-cells = <1>;
#size-cells = <1>;
/* child and parent address space 1:1 mapped */
ranges;
/* only perip space at end of low mem accessible
bus addr, parent bus addr, size */
ranges = <0x80000000 0x0 0x80000000 0x80000000>;
core_clk: core_clk {
#clock-cells = <0>;
@@ -47,7 +50,7 @@
};
uart0: serial@f0000000 {
compatible = "ns8250";
compatible = "ns16550a";
reg = <0xf0000000 0x2000>;
interrupts = <24>;
clock-frequency = <50000000>;
arch/arc/boot/dts/haps_hs_idu.dts
-1
View File
@@ -54,7 +54,6 @@
};
uart0: serial@f0000000 {
/* compatible = "ns8250"; Doesn't use FIFOs */
compatible = "ns16550a";
reg = <0xf0000000 0x2000>;
interrupt-parent = <&idu_intc>;
arch/arc/boot/dts/nsim_700.dts
+11 -25
View File
@@ -14,11 +14,11 @@
interrupt-parent = <&core_intc>;
chosen {
bootargs = "earlycon=arc_uart,mmio32,0xc0fc1000,115200n8 console=ttyARC0,115200n8 print-fatal-signals=1";
bootargs = "earlycon=uart8250,mmio32,0xf0000000,115200n8 console=ttyS0,115200n8 print-fatal-signals=1";
};
aliases {
serial0 = &arcuart0;
serial0 = &uart0;
};
fpga {
@@ -41,29 +41,15 @@
#interrupt-cells = <1>;
};
arcuart0: serial@c0fc1000 {
compatible = "snps,arc-uart";
reg = <0xc0fc1000 0x100>;
interrupts = <5>;
clock-frequency = <80000000>;
current-speed = <115200>;
status = "okay";
};
ethernet@c0fc2000 {
compatible = "snps,arc-emac";
reg = <0xc0fc2000 0x3c>;
interrupts = <6>;
mac-address = [ 00 11 22 33 44 55 ];
clock-frequency = <80000000>;
max-speed = <100>;
phy = <&phy0>;
#address-cells = <1>;
#size-cells = <0>;
phy0: ethernet-phy@0 {
reg = <1>;
};
uart0: serial@f0000000 {
compatible = "ns16550a";
reg = <0xf0000000 0x2000>;
interrupts = <24>;
clock-frequency = <50000000>;
baud = <115200>;
reg-shift = <2>;
reg-io-width = <4>;
no-loopback-test = <1>;
};
arcpct0: pct {
arch/arc/boot/dts/nsim_hs.dts
-67
View File
@@ -1,67 +0,0 @@
// SPDX-License-Identifier: GPL-2.0-only
/*
* Copyright (C) 2014-15 Synopsys, Inc. (www.synopsys.com)
*/
/dts-v1/;
/include/ "skeleton_hs.dtsi"
/ {
model = "snps,nsim_hs";
compatible = "snps,nsim_hs";
#address-cells = <2>;
#size-cells = <2>;
interrupt-parent = <&core_intc>;
memory {
device_type = "memory";
/* CONFIG_LINUX_RAM_BASE needs to match low mem start */
reg = <0x0 0x80000000 0x0 0x20000000 /* 512 MB low mem */
0x1 0x00000000 0x0 0x40000000>; /* 1 GB highmem */
};
chosen {
bootargs = "earlycon=arc_uart,mmio32,0xc0fc1000,115200n8 console=ttyARC0,115200n8 print-fatal-signals=1";
};
aliases {
serial0 = &arcuart0;
};
fpga {
compatible = "simple-bus";
#address-cells = <1>;
#size-cells = <1>;
/* only perip space at end of low mem accessible
bus addr, parent bus addr, size */
ranges = <0x80000000 0x0 0x80000000 0x80000000>;
core_clk: core_clk {
#clock-cells = <0>;
compatible = "fixed-clock";
clock-frequency = <80000000>;
};
core_intc: core-interrupt-controller {
compatible = "snps,archs-intc";
interrupt-controller;
#interrupt-cells = <1>;
};
arcuart0: serial@c0fc1000 {
compatible = "snps,arc-uart";
reg = <0xc0fc1000 0x100>;
interrupts = <24>;
clock-frequency = <80000000>;
current-speed = <115200>;
status = "okay";
};
arcpct0: pct {
compatible = "snps,archs-pct";
#interrupt-cells = <1>;
interrupts = <20>;
};
};
};
arch/arc/boot/dts/nsim_hs_idu.dts
-65
View File
@@ -1,65 +0,0 @@
// SPDX-License-Identifier: GPL-2.0-only
/*
* Copyright (C) 2014-15 Synopsys, Inc. (www.synopsys.com)
*/
/dts-v1/;
/include/ "skeleton_hs_idu.dtsi"
/ {
model = "snps,nsim_hs-smp";
compatible = "snps,nsim_hs";
interrupt-parent = <&core_intc>;
chosen {
bootargs = "earlycon=arc_uart,mmio32,0xc0fc1000,115200n8 console=ttyARC0,115200n8 print-fatal-signals=1";
};
aliases {
serial0 = &arcuart0;
};
fpga {
compatible = "simple-bus";
#address-cells = <1>;
#size-cells = <1>;
/* child and parent address space 1:1 mapped */
ranges;
core_clk: core_clk {
#clock-cells = <0>;
compatible = "fixed-clock";
clock-frequency = <80000000>;
};
core_intc: core-interrupt-controller {
compatible = "snps,archs-intc";
interrupt-controller;
#interrupt-cells = <1>;
};
idu_intc: idu-interrupt-controller {
compatible = "snps,archs-idu-intc";
interrupt-controller;
interrupt-parent = <&core_intc>;
#interrupt-cells = <1>;
};
arcuart0: serial@c0fc1000 {
compatible = "snps,arc-uart";
reg = <0xc0fc1000 0x100>;
interrupt-parent = <&idu_intc>;
interrupts = <0>;
clock-frequency = <80000000>;
current-speed = <115200>;
status = "okay";
};
arcpct0: pct {
compatible = "snps,archs-pct";
#interrupt-cells = <1>;
interrupts = <20>;
};
};
};
arch/arc/configs/haps_hs_defconfig
+6 -24
View File
@@ -4,6 +4,7 @@ CONFIG_POSIX_MQUEUE=y
# CONFIG_CROSS_MEMORY_ATTACH is not set
CONFIG_NO_HZ_IDLE=y
CONFIG_HIGH_RES_TIMERS=y
CONFIG_PREEMPT=y
CONFIG_IKCONFIG=y
CONFIG_IKCONFIG_PROC=y
CONFIG_NAMESPACES=y
@@ -15,13 +16,9 @@ CONFIG_EXPERT=y
CONFIG_PERF_EVENTS=y
# CONFIG_COMPAT_BRK is not set
CONFIG_SLAB=y
CONFIG_ARC_BUILTIN_DTB_NAME="haps_hs"
CONFIG_MODULES=y
# CONFIG_BLK_DEV_BSG is not set
# CONFIG_IOSCHED_DEADLINE is not set
# CONFIG_IOSCHED_CFQ is not set
CONFIG_ISA_ARCV2=y
CONFIG_ARC_BUILTIN_DTB_NAME="haps_hs"
CONFIG_PREEMPT=y
# CONFIG_COMPACTION is not set
CONFIG_NET=y
CONFIG_PACKET=y
@@ -30,9 +27,6 @@ CONFIG_UNIX=y
CONFIG_UNIX_DIAG=y
CONFIG_NET_KEY=y
CONFIG_INET=y
# CONFIG_INET_XFRM_MODE_TRANSPORT is not set
# CONFIG_INET_XFRM_MODE_TUNNEL is not set
# CONFIG_INET_XFRM_MODE_BEET is not set
# CONFIG_IPV6 is not set
# CONFIG_WIRELESS is not set
CONFIG_DEVTMPFS=y
@@ -42,21 +36,12 @@ CONFIG_DEVTMPFS_MOUNT=y
CONFIG_VIRTIO_BLK=y
CONFIG_NETDEVICES=y
CONFIG_VIRTIO_NET=y
# CONFIG_NET_VENDOR_ARC is not set
# CONFIG_NET_VENDOR_BROADCOM is not set
# CONFIG_NET_VENDOR_INTEL is not set
# CONFIG_NET_VENDOR_MARVELL is not set
# CONFIG_NET_VENDOR_MICREL is not set
# CONFIG_NET_VENDOR_NATSEMI is not set
# CONFIG_NET_VENDOR_SEEQ is not set
# CONFIG_NET_VENDOR_STMICRO is not set
# CONFIG_NET_VENDOR_VIA is not set
# CONFIG_NET_VENDOR_WIZNET is not set
# CONFIG_ETHERNET is not set
# CONFIG_WLAN is not set
CONFIG_INPUT_EVDEV=y
CONFIG_MOUSE_PS2_TOUCHKIT=y
# CONFIG_SERIO_SERPORT is not set
CONFIG_SERIO_ARC_PS2=y
# CONFIG_INPUT_KEYBOARD is not set
# CONFIG_INPUT_MOUSE is not set
# CONFIG_SERIO is not set
# CONFIG_LEGACY_PTYS is not set
CONFIG_SERIAL_8250=y
CONFIG_SERIAL_8250_CONSOLE=y
@@ -66,9 +51,6 @@ CONFIG_SERIAL_8250_DW=y
CONFIG_SERIAL_OF_PLATFORM=y
# CONFIG_HW_RANDOM is not set
# CONFIG_HWMON is not set
CONFIG_FB=y
CONFIG_FRAMEBUFFER_CONSOLE=y
CONFIG_LOGO=y
# CONFIG_HID is not set
# CONFIG_USB_SUPPORT is not set
CONFIG_VIRTIO_MMIO=y
arch/arc/configs/haps_hs_smp_defconfig
+7 -25
View File
@@ -4,6 +4,7 @@ CONFIG_POSIX_MQUEUE=y
# CONFIG_CROSS_MEMORY_ATTACH is not set
CONFIG_NO_HZ_IDLE=y
CONFIG_HIGH_RES_TIMERS=y
CONFIG_PREEMPT=y
CONFIG_IKCONFIG=y
CONFIG_IKCONFIG_PROC=y
CONFIG_NAMESPACES=y
@@ -16,15 +17,11 @@ CONFIG_PERF_EVENTS=y
# CONFIG_VM_EVENT_COUNTERS is not set
# CONFIG_COMPAT_BRK is not set
CONFIG_SLAB=y
CONFIG_SMP=y
CONFIG_ARC_BUILTIN_DTB_NAME="haps_hs_idu"
CONFIG_KPROBES=y
CONFIG_MODULES=y
# CONFIG_BLK_DEV_BSG is not set
# CONFIG_IOSCHED_DEADLINE is not set
# CONFIG_IOSCHED_CFQ is not set
CONFIG_ISA_ARCV2=y
CONFIG_SMP=y
CONFIG_ARC_BUILTIN_DTB_NAME="haps_hs_idu"
CONFIG_PREEMPT=y
# CONFIG_COMPACTION is not set
CONFIG_NET=y
CONFIG_PACKET=y
@@ -33,9 +30,6 @@ CONFIG_UNIX=y
CONFIG_UNIX_DIAG=y
CONFIG_NET_KEY=y
CONFIG_INET=y
# CONFIG_INET_XFRM_MODE_TRANSPORT is not set
# CONFIG_INET_XFRM_MODE_TUNNEL is not set
# CONFIG_INET_XFRM_MODE_BEET is not set
# CONFIG_IPV6 is not set
# CONFIG_WIRELESS is not set
CONFIG_DEVTMPFS=y
@@ -43,21 +37,12 @@ CONFIG_DEVTMPFS=y
# CONFIG_PREVENT_FIRMWARE_BUILD is not set
# CONFIG_BLK_DEV is not set
CONFIG_NETDEVICES=y
# CONFIG_NET_VENDOR_ARC is not set
# CONFIG_NET_VENDOR_BROADCOM is not set
# CONFIG_NET_VENDOR_INTEL is not set
# CONFIG_NET_VENDOR_MARVELL is not set
# CONFIG_NET_VENDOR_MICREL is not set
# CONFIG_NET_VENDOR_NATSEMI is not set
# CONFIG_NET_VENDOR_SEEQ is not set
# CONFIG_NET_VENDOR_STMICRO is not set
# CONFIG_NET_VENDOR_VIA is not set
# CONFIG_NET_VENDOR_WIZNET is not set
# CONFIG_ETHERNET is not set
# CONFIG_WLAN is not set
CONFIG_INPUT_EVDEV=y
CONFIG_MOUSE_PS2_TOUCHKIT=y
# CONFIG_SERIO_SERPORT is not set
CONFIG_SERIO_ARC_PS2=y
# CONFIG_INPUT_KEYBOARD is not set
# CONFIG_INPUT_MOUSE is not set
# CONFIG_SERIO is not set
# CONFIG_LEGACY_PTYS is not set
CONFIG_SERIAL_8250=y
CONFIG_SERIAL_8250_CONSOLE=y
@@ -67,9 +52,6 @@ CONFIG_SERIAL_8250_DW=y
CONFIG_SERIAL_OF_PLATFORM=y
# CONFIG_HW_RANDOM is not set
# CONFIG_HWMON is not set
CONFIG_FB=y
CONFIG_FRAMEBUFFER_CONSOLE=y
CONFIG_LOGO=y
# CONFIG_HID is not set
# CONFIG_USB_SUPPORT is not set
# CONFIG_IOMMU_SUPPORT is not set
arch/arc/configs/nsim_700_defconfig
+10 -9
View File
@@ -4,6 +4,7 @@ CONFIG_SYSVIPC=y
CONFIG_POSIX_MQUEUE=y
# CONFIG_CROSS_MEMORY_ATTACH is not set
CONFIG_HIGH_RES_TIMERS=y
CONFIG_PREEMPT=y
CONFIG_IKCONFIG=y
CONFIG_IKCONFIG_PROC=y
CONFIG_NAMESPACES=y
@@ -17,13 +18,10 @@ CONFIG_PERF_EVENTS=y
# CONFIG_SLUB_DEBUG is not set
# CONFIG_COMPAT_BRK is not set
CONFIG_ISA_ARCOMPACT=y
CONFIG_ARC_BUILTIN_DTB_NAME="nsim_700"
CONFIG_KPROBES=y
CONFIG_MODULES=y
# CONFIG_BLK_DEV_BSG is not set
# CONFIG_IOSCHED_DEADLINE is not set
# CONFIG_IOSCHED_CFQ is not set
CONFIG_ARC_BUILTIN_DTB_NAME="nsim_700"
CONFIG_PREEMPT=y
# CONFIG_COMPACTION is not set
CONFIG_NET=y
CONFIG_PACKET=y
@@ -37,15 +35,18 @@ CONFIG_DEVTMPFS=y
# CONFIG_PREVENT_FIRMWARE_BUILD is not set
# CONFIG_BLK_DEV is not set
CONFIG_NETDEVICES=y
CONFIG_ARC_EMAC=y
CONFIG_LXT_PHY=y
# CONFIG_INPUT_MOUSEDEV_PSAUX is not set
# CONFIG_ETHERNET is not set
# CONFIG_WLAN is not set
# CONFIG_INPUT_KEYBOARD is not set
# CONFIG_INPUT_MOUSE is not set
# CONFIG_SERIO is not set
# CONFIG_LEGACY_PTYS is not set
CONFIG_SERIAL_ARC=y
CONFIG_SERIAL_ARC_CONSOLE=y
CONFIG_SERIAL_8250=y
CONFIG_SERIAL_8250_CONSOLE=y
CONFIG_SERIAL_8250_NR_UARTS=1
CONFIG_SERIAL_8250_RUNTIME_UARTS=1
CONFIG_SERIAL_8250_DW=y
CONFIG_SERIAL_OF_PLATFORM=y
# CONFIG_HW_RANDOM is not set
# CONFIG_HWMON is not set
# CONFIG_HID is not set
arch/arc/configs/nsim_hs_defconfig
-60
View File
@@ -1,60 +0,0 @@
# CONFIG_LOCALVERSION_AUTO is not set
# CONFIG_SWAP is not set
CONFIG_SYSVIPC=y
CONFIG_POSIX_MQUEUE=y
# CONFIG_CROSS_MEMORY_ATTACH is not set
CONFIG_HIGH_RES_TIMERS=y
CONFIG_IKCONFIG=y
CONFIG_IKCONFIG_PROC=y
CONFIG_NAMESPACES=y
# CONFIG_UTS_NS is not set
# CONFIG_PID_NS is not set
CONFIG_BLK_DEV_INITRD=y
CONFIG_CC_OPTIMIZE_FOR_PERFORMANCE_O3=y
CONFIG_KALLSYMS_ALL=y
CONFIG_EMBEDDED=y
CONFIG_PERF_EVENTS=y
# CONFIG_SLUB_DEBUG is not set
# CONFIG_COMPAT_BRK is not set
CONFIG_KPROBES=y
CONFIG_MODULES=y
CONFIG_MODULE_FORCE_LOAD=y
CONFIG_MODULE_UNLOAD=y
CONFIG_MODULE_FORCE_UNLOAD=y
# CONFIG_BLK_DEV_BSG is not set
# CONFIG_IOSCHED_DEADLINE is not set
# CONFIG_IOSCHED_CFQ is not set
CONFIG_ISA_ARCV2=y
CONFIG_ARC_BUILTIN_DTB_NAME="nsim_hs"
CONFIG_PREEMPT=y
# CONFIG_COMPACTION is not set
CONFIG_NET=y
CONFIG_PACKET=y
CONFIG_UNIX=y
CONFIG_UNIX_DIAG=y
CONFIG_NET_KEY=y
CONFIG_INET=y
# CONFIG_IPV6 is not set
CONFIG_DEVTMPFS=y
# CONFIG_STANDALONE is not set
# CONFIG_PREVENT_FIRMWARE_BUILD is not set
# CONFIG_BLK_DEV is not set
# CONFIG_INPUT_MOUSEDEV_PSAUX is not set
# CONFIG_INPUT_KEYBOARD is not set
# CONFIG_INPUT_MOUSE is not set
# CONFIG_SERIO is not set
# CONFIG_LEGACY_PTYS is not set
CONFIG_SERIAL_ARC=y
CONFIG_SERIAL_ARC_CONSOLE=y
# CONFIG_HW_RANDOM is not set
# CONFIG_HWMON is not set
# CONFIG_HID is not set
# CONFIG_USB_SUPPORT is not set
# CONFIG_IOMMU_SUPPORT is not set
CONFIG_EXT2_FS=y
CONFIG_EXT2_FS_XATTR=y
CONFIG_TMPFS=y
# CONFIG_MISC_FILESYSTEMS is not set
CONFIG_NFS_FS=y
# CONFIG_ENABLE_MUST_CHECK is not set
# CONFIG_DEBUG_PREEMPT is not set
arch/arc/configs/nsim_hs_smp_defconfig
-58
View File
@@ -1,58 +0,0 @@
# CONFIG_LOCALVERSION_AUTO is not set
# CONFIG_SWAP is not set
# CONFIG_CROSS_MEMORY_ATTACH is not set
CONFIG_HIGH_RES_TIMERS=y
CONFIG_IKCONFIG=y
CONFIG_IKCONFIG_PROC=y
CONFIG_NAMESPACES=y
# CONFIG_UTS_NS is not set
# CONFIG_PID_NS is not set
CONFIG_BLK_DEV_INITRD=y
CONFIG_CC_OPTIMIZE_FOR_PERFORMANCE_O3=y
CONFIG_KALLSYMS_ALL=y
CONFIG_EMBEDDED=y
CONFIG_PERF_EVENTS=y
# CONFIG_SLUB_DEBUG is not set
# CONFIG_COMPAT_BRK is not set
CONFIG_KPROBES=y
CONFIG_MODULES=y
CONFIG_MODULE_FORCE_LOAD=y
CONFIG_MODULE_UNLOAD=y
CONFIG_MODULE_FORCE_UNLOAD=y
# CONFIG_BLK_DEV_BSG is not set
# CONFIG_IOSCHED_DEADLINE is not set
# CONFIG_IOSCHED_CFQ is not set
CONFIG_ISA_ARCV2=y
CONFIG_SMP=y
CONFIG_ARC_BUILTIN_DTB_NAME="nsim_hs_idu"
CONFIG_PREEMPT=y
# CONFIG_COMPACTION is not set
CONFIG_NET=y
CONFIG_PACKET=y
CONFIG_UNIX=y
CONFIG_UNIX_DIAG=y
CONFIG_NET_KEY=y
CONFIG_INET=y
# CONFIG_IPV6 is not set
CONFIG_DEVTMPFS=y
# CONFIG_STANDALONE is not set
# CONFIG_PREVENT_FIRMWARE_BUILD is not set
# CONFIG_BLK_DEV is not set
# CONFIG_INPUT_MOUSEDEV_PSAUX is not set
# CONFIG_INPUT_KEYBOARD is not set
# CONFIG_INPUT_MOUSE is not set
# CONFIG_SERIO is not set
# CONFIG_LEGACY_PTYS is not set
CONFIG_SERIAL_ARC=y
CONFIG_SERIAL_ARC_CONSOLE=y
# CONFIG_HW_RANDOM is not set
# CONFIG_HWMON is not set
# CONFIG_HID is not set
# CONFIG_USB_SUPPORT is not set
# CONFIG_IOMMU_SUPPORT is not set
CONFIG_EXT2_FS=y
CONFIG_EXT2_FS_XATTR=y
CONFIG_TMPFS=y
# CONFIG_MISC_FILESYSTEMS is not set
CONFIG_NFS_FS=y
# CONFIG_ENABLE_MUST_CHECK is not set
arch/arc/include/asm/cache.h
+2
View File
@@ -25,6 +25,8 @@
#ifndef __ASSEMBLY__
#include <linux/build_bug.h>
/* Uncached access macros */
#define arc_read_uncached_32(ptr) \
({ \
arch/arc/include/asm/entry-compact.h
+2 -2
View File
@@ -130,7 +130,7 @@
* to be saved again on kernel mode stack, as part of pt_regs.
*-------------------------------------------------------------*/
.macro PROLOG_FREEUP_REG reg, mem
#ifdef CONFIG_SMP
#ifndef ARC_USE_SCRATCH_REG
sr \reg, [ARC_REG_SCRATCH_DATA0]
#else
st \reg, [\mem]
@@ -138,7 +138,7 @@
.endm
.macro PROLOG_RESTORE_REG reg, mem
#ifdef CONFIG_SMP
#ifndef ARC_USE_SCRATCH_REG
lr \reg, [ARC_REG_SCRATCH_DATA0]
#else
ld \reg, [\mem]
arch/arc/include/asm/jump_label.h
+72
View File
@@ -0,0 +1,72 @@
/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_ARC_JUMP_LABEL_H
#define _ASM_ARC_JUMP_LABEL_H
#ifndef __ASSEMBLY__
#include <linux/stringify.h>
#include <linux/types.h>
#define JUMP_LABEL_NOP_SIZE 4
/*
* NOTE about '.balign 4':
*
* To make atomic update of patched instruction available we need to guarantee
* that this instruction doesn't cross L1 cache line boundary.
*
* As of today we simply align instruction which can be patched by 4 byte using
* ".balign 4" directive. In that case patched instruction is aligned with one
* 16-bit NOP_S if this is required.
* However 'align by 4' directive is much stricter than it actually required.
* It's enough that our 32-bit instruction don't cross L1 cache line boundary /
* L1 I$ fetch block boundary which can be achieved by using
* ".bundle_align_mode" assembler directive. That will save us from adding
* useless NOP_S padding in most of the cases.
*
* TODO: switch to ".bundle_align_mode" directive using whin it will be
* supported by ARC toolchain.
*/
static __always_inline bool arch_static_branch(struct static_key *key,
bool branch)
{
asm_volatile_goto(".balign "__stringify(JUMP_LABEL_NOP_SIZE)" \n"
"1: \n"
"nop \n"
".pushsection __jump_table, \"aw\" \n"
".word 1b, %l[l_yes], %c0 \n"
".popsection \n"
: : "i" (&((char *)key)[branch]) : : l_yes);
return false;
l_yes:
return true;
}
static __always_inline bool arch_static_branch_jump(struct static_key *key,
bool branch)
{
asm_volatile_goto(".balign "__stringify(JUMP_LABEL_NOP_SIZE)" \n"
"1: \n"
"b %l[l_yes] \n"
".pushsection __jump_table, \"aw\" \n"
".word 1b, %l[l_yes], %c0 \n"
".popsection \n"
: : "i" (&((char *)key)[branch]) : : l_yes);
return false;
l_yes:
return true;
}
typedef u32 jump_label_t;
struct jump_entry {
jump_label_t code;
jump_label_t target;
jump_label_t key;
};
#endif /* __ASSEMBLY__ */
#endif
arch/arc/include/asm/mmu.h
+6
View File
@@ -40,6 +40,10 @@
#define ARC_REG_SCRATCH_DATA0 0x46c
#endif
#if defined(CONFIG_ISA_ARCV2) || !defined(CONFIG_SMP)
#define ARC_USE_SCRATCH_REG
#endif
/* Bits in MMU PID register */
#define __TLB_ENABLE (1 << 31)
#define __PROG_ENABLE (1 << 30)
@@ -63,6 +67,8 @@
#if (CONFIG_ARC_MMU_VER >= 2)
#define TLBWriteNI 0x5 /* write JTLB without inv uTLBs */
#define TLBIVUTLB 0x6 /* explicitly inv uTLBs */
#else
#define TLBWriteNI TLBWrite /* Not present in hardware, fallback */
#endif
#if (CONFIG_ARC_MMU_VER >= 4)

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