Commit 6dc390ad authored by Linus Torvalds's avatar Linus Torvalds

Merge tag 'arc-4.5-rc6-fixes-upd' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc

Pull ARC fixes from Vineet Gupta:
 - Fix for csd deadlock due to missing self IPI
 - Accompanying IPI cleanups / optimization
 - Brown paper bag bug in one of the cleanups above
 - Boot reporting updates for new hardware features
 - Don't force DEVTMPFS if INITRAMFS

* tag 'arc-4.5-rc6-fixes-upd' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc:
  arc: SMP: CONFIG_ARC_IPI_DBG cleanup
  ARC: SMP: No need for CONFIG_ARC_IPI_DBG
  ARCv2: Elide sending new cross core intr if receiver didn't ack prev
  ARCv2: SMP: Push IPI_IRQ into IPI provider
  ARC: [intc-compact] Remove IPI setup from ARCompact port
  ARCv2: SMP: Emulate IPI to self using software triggered interrupt
  arc: get rid of DEVTMPFS dependency on INITRAMFS_SOURCE
  ARCv2: boot report CCMs (Closely Coupled Memories)
  ARCv2: boot print Low Latency Memory
  ARC: Assume multiplier is always present
parents aa263c43 9ef2d8be
...@@ -12,8 +12,6 @@ config ARC ...@@ -12,8 +12,6 @@ config ARC
select BUILDTIME_EXTABLE_SORT select BUILDTIME_EXTABLE_SORT
select COMMON_CLK select COMMON_CLK
select CLONE_BACKWARDS select CLONE_BACKWARDS
# ARC Busybox based initramfs absolutely relies on DEVTMPFS for /dev
select DEVTMPFS if !INITRAMFS_SOURCE=""
select GENERIC_ATOMIC64 select GENERIC_ATOMIC64
select GENERIC_CLOCKEVENTS select GENERIC_CLOCKEVENTS
select GENERIC_FIND_FIRST_BIT select GENERIC_FIND_FIRST_BIT
...@@ -275,14 +273,6 @@ config ARC_DCCM_BASE ...@@ -275,14 +273,6 @@ config ARC_DCCM_BASE
default "0xA0000000" default "0xA0000000"
depends on ARC_HAS_DCCM depends on ARC_HAS_DCCM
config ARC_HAS_HW_MPY
bool "Use Hardware Multiplier (Normal or Faster XMAC)"
default y
help
Influences how gcc generates code for MPY operations.
If enabled, MPYxx insns are generated, provided by Standard/XMAC
Multipler. Otherwise software multipy lib is used
choice choice
prompt "MMU Version" prompt "MMU Version"
default ARC_MMU_V3 if ARC_CPU_770 default ARC_MMU_V3 if ARC_CPU_770
...@@ -542,14 +532,6 @@ config ARC_DBG_TLB_MISS_COUNT ...@@ -542,14 +532,6 @@ config ARC_DBG_TLB_MISS_COUNT
Counts number of I and D TLB Misses and exports them via Debugfs Counts number of I and D TLB Misses and exports them via Debugfs
The counters can be cleared via Debugfs as well The counters can be cleared via Debugfs as well
if SMP
config ARC_IPI_DBG
bool "Debug Inter Core interrupts"
default n
endif
endif endif
config ARC_UBOOT_SUPPORT config ARC_UBOOT_SUPPORT
......
...@@ -74,10 +74,6 @@ ldflags-$(CONFIG_CPU_BIG_ENDIAN) += -EB ...@@ -74,10 +74,6 @@ ldflags-$(CONFIG_CPU_BIG_ENDIAN) += -EB
# --build-id w/o "-marclinux". Default arc-elf32-ld is OK # --build-id w/o "-marclinux". Default arc-elf32-ld is OK
ldflags-$(upto_gcc44) += -marclinux ldflags-$(upto_gcc44) += -marclinux
ifndef CONFIG_ARC_HAS_HW_MPY
cflags-y += -mno-mpy
endif
LIBGCC := $(shell $(CC) $(cflags-y) --print-libgcc-file-name) LIBGCC := $(shell $(CC) $(cflags-y) --print-libgcc-file-name)
# Modules with short calls might break for calls into builtin-kernel # Modules with short calls might break for calls into builtin-kernel
......
...@@ -39,6 +39,7 @@ CONFIG_IP_PNP_RARP=y ...@@ -39,6 +39,7 @@ CONFIG_IP_PNP_RARP=y
# CONFIG_INET_XFRM_MODE_TUNNEL is not set # CONFIG_INET_XFRM_MODE_TUNNEL is not set
# CONFIG_INET_XFRM_MODE_BEET is not set # CONFIG_INET_XFRM_MODE_BEET is not set
# CONFIG_IPV6 is not set # CONFIG_IPV6 is not set
CONFIG_DEVTMPFS=y
# CONFIG_STANDALONE is not set # CONFIG_STANDALONE is not set
# CONFIG_PREVENT_FIRMWARE_BUILD is not set # CONFIG_PREVENT_FIRMWARE_BUILD is not set
# CONFIG_FIRMWARE_IN_KERNEL is not set # CONFIG_FIRMWARE_IN_KERNEL is not set
...@@ -73,7 +74,6 @@ CONFIG_I2C_CHARDEV=y ...@@ -73,7 +74,6 @@ CONFIG_I2C_CHARDEV=y
CONFIG_I2C_DESIGNWARE_PLATFORM=y CONFIG_I2C_DESIGNWARE_PLATFORM=y
# CONFIG_HWMON is not set # CONFIG_HWMON is not set
CONFIG_FB=y CONFIG_FB=y
# CONFIG_VGA_CONSOLE is not set
CONFIG_FRAMEBUFFER_CONSOLE=y CONFIG_FRAMEBUFFER_CONSOLE=y
CONFIG_FRAMEBUFFER_CONSOLE_DETECT_PRIMARY=y CONFIG_FRAMEBUFFER_CONSOLE_DETECT_PRIMARY=y
CONFIG_LOGO=y CONFIG_LOGO=y
...@@ -91,12 +91,10 @@ CONFIG_MMC_SDHCI_PLTFM=y ...@@ -91,12 +91,10 @@ CONFIG_MMC_SDHCI_PLTFM=y
CONFIG_MMC_DW=y CONFIG_MMC_DW=y
# CONFIG_IOMMU_SUPPORT is not set # CONFIG_IOMMU_SUPPORT is not set
CONFIG_EXT3_FS=y CONFIG_EXT3_FS=y
CONFIG_EXT4_FS=y
CONFIG_MSDOS_FS=y CONFIG_MSDOS_FS=y
CONFIG_VFAT_FS=y CONFIG_VFAT_FS=y
CONFIG_NTFS_FS=y CONFIG_NTFS_FS=y
CONFIG_TMPFS=y CONFIG_TMPFS=y
CONFIG_JFFS2_FS=y
CONFIG_NFS_FS=y CONFIG_NFS_FS=y
CONFIG_NLS_CODEPAGE_437=y CONFIG_NLS_CODEPAGE_437=y
CONFIG_NLS_ISO8859_1=y CONFIG_NLS_ISO8859_1=y
......
...@@ -39,14 +39,10 @@ CONFIG_IP_PNP_RARP=y ...@@ -39,14 +39,10 @@ CONFIG_IP_PNP_RARP=y
# CONFIG_INET_XFRM_MODE_TUNNEL is not set # CONFIG_INET_XFRM_MODE_TUNNEL is not set
# CONFIG_INET_XFRM_MODE_BEET is not set # CONFIG_INET_XFRM_MODE_BEET is not set
# CONFIG_IPV6 is not set # CONFIG_IPV6 is not set
CONFIG_DEVTMPFS=y
# CONFIG_STANDALONE is not set # CONFIG_STANDALONE is not set
# CONFIG_PREVENT_FIRMWARE_BUILD is not set # CONFIG_PREVENT_FIRMWARE_BUILD is not set
# CONFIG_FIRMWARE_IN_KERNEL is not set # CONFIG_FIRMWARE_IN_KERNEL is not set
CONFIG_MTD=y
CONFIG_MTD_CMDLINE_PARTS=y
CONFIG_MTD_BLOCK=y
CONFIG_MTD_NAND=y
CONFIG_MTD_NAND_AXS=y
CONFIG_SCSI=y CONFIG_SCSI=y
CONFIG_BLK_DEV_SD=y CONFIG_BLK_DEV_SD=y
CONFIG_NETDEVICES=y CONFIG_NETDEVICES=y
...@@ -78,14 +74,12 @@ CONFIG_I2C_CHARDEV=y ...@@ -78,14 +74,12 @@ CONFIG_I2C_CHARDEV=y
CONFIG_I2C_DESIGNWARE_PLATFORM=y CONFIG_I2C_DESIGNWARE_PLATFORM=y
# CONFIG_HWMON is not set # CONFIG_HWMON is not set
CONFIG_FB=y CONFIG_FB=y
# CONFIG_VGA_CONSOLE is not set
CONFIG_FRAMEBUFFER_CONSOLE=y CONFIG_FRAMEBUFFER_CONSOLE=y
CONFIG_FRAMEBUFFER_CONSOLE_DETECT_PRIMARY=y CONFIG_FRAMEBUFFER_CONSOLE_DETECT_PRIMARY=y
CONFIG_LOGO=y CONFIG_LOGO=y
# CONFIG_LOGO_LINUX_MONO is not set # CONFIG_LOGO_LINUX_MONO is not set
# CONFIG_LOGO_LINUX_VGA16 is not set # CONFIG_LOGO_LINUX_VGA16 is not set
# CONFIG_LOGO_LINUX_CLUT224 is not set # CONFIG_LOGO_LINUX_CLUT224 is not set
CONFIG_USB=y
CONFIG_USB_EHCI_HCD=y CONFIG_USB_EHCI_HCD=y
CONFIG_USB_EHCI_HCD_PLATFORM=y CONFIG_USB_EHCI_HCD_PLATFORM=y
CONFIG_USB_OHCI_HCD=y CONFIG_USB_OHCI_HCD=y
...@@ -97,12 +91,10 @@ CONFIG_MMC_SDHCI_PLTFM=y ...@@ -97,12 +91,10 @@ CONFIG_MMC_SDHCI_PLTFM=y
CONFIG_MMC_DW=y CONFIG_MMC_DW=y
# CONFIG_IOMMU_SUPPORT is not set # CONFIG_IOMMU_SUPPORT is not set
CONFIG_EXT3_FS=y CONFIG_EXT3_FS=y
CONFIG_EXT4_FS=y
CONFIG_MSDOS_FS=y CONFIG_MSDOS_FS=y
CONFIG_VFAT_FS=y CONFIG_VFAT_FS=y
CONFIG_NTFS_FS=y CONFIG_NTFS_FS=y
CONFIG_TMPFS=y CONFIG_TMPFS=y
CONFIG_JFFS2_FS=y
CONFIG_NFS_FS=y CONFIG_NFS_FS=y
CONFIG_NLS_CODEPAGE_437=y CONFIG_NLS_CODEPAGE_437=y
CONFIG_NLS_ISO8859_1=y CONFIG_NLS_ISO8859_1=y
......
...@@ -40,14 +40,10 @@ CONFIG_IP_PNP_RARP=y ...@@ -40,14 +40,10 @@ CONFIG_IP_PNP_RARP=y
# CONFIG_INET_XFRM_MODE_TUNNEL is not set # CONFIG_INET_XFRM_MODE_TUNNEL is not set
# CONFIG_INET_XFRM_MODE_BEET is not set # CONFIG_INET_XFRM_MODE_BEET is not set
# CONFIG_IPV6 is not set # CONFIG_IPV6 is not set
CONFIG_DEVTMPFS=y
# CONFIG_STANDALONE is not set # CONFIG_STANDALONE is not set
# CONFIG_PREVENT_FIRMWARE_BUILD is not set # CONFIG_PREVENT_FIRMWARE_BUILD is not set
# CONFIG_FIRMWARE_IN_KERNEL is not set # CONFIG_FIRMWARE_IN_KERNEL is not set
CONFIG_MTD=y
CONFIG_MTD_CMDLINE_PARTS=y
CONFIG_MTD_BLOCK=y
CONFIG_MTD_NAND=y
CONFIG_MTD_NAND_AXS=y
CONFIG_SCSI=y CONFIG_SCSI=y
CONFIG_BLK_DEV_SD=y CONFIG_BLK_DEV_SD=y
CONFIG_NETDEVICES=y CONFIG_NETDEVICES=y
...@@ -79,14 +75,12 @@ CONFIG_I2C_CHARDEV=y ...@@ -79,14 +75,12 @@ CONFIG_I2C_CHARDEV=y
CONFIG_I2C_DESIGNWARE_PLATFORM=y CONFIG_I2C_DESIGNWARE_PLATFORM=y
# CONFIG_HWMON is not set # CONFIG_HWMON is not set
CONFIG_FB=y CONFIG_FB=y
# CONFIG_VGA_CONSOLE is not set
CONFIG_FRAMEBUFFER_CONSOLE=y CONFIG_FRAMEBUFFER_CONSOLE=y
CONFIG_FRAMEBUFFER_CONSOLE_DETECT_PRIMARY=y CONFIG_FRAMEBUFFER_CONSOLE_DETECT_PRIMARY=y
CONFIG_LOGO=y CONFIG_LOGO=y
# CONFIG_LOGO_LINUX_MONO is not set # CONFIG_LOGO_LINUX_MONO is not set
# CONFIG_LOGO_LINUX_VGA16 is not set # CONFIG_LOGO_LINUX_VGA16 is not set
# CONFIG_LOGO_LINUX_CLUT224 is not set # CONFIG_LOGO_LINUX_CLUT224 is not set
CONFIG_USB=y
CONFIG_USB_EHCI_HCD=y CONFIG_USB_EHCI_HCD=y
CONFIG_USB_EHCI_HCD_PLATFORM=y CONFIG_USB_EHCI_HCD_PLATFORM=y
CONFIG_USB_OHCI_HCD=y CONFIG_USB_OHCI_HCD=y
...@@ -98,12 +92,10 @@ CONFIG_MMC_SDHCI_PLTFM=y ...@@ -98,12 +92,10 @@ CONFIG_MMC_SDHCI_PLTFM=y
CONFIG_MMC_DW=y CONFIG_MMC_DW=y
# CONFIG_IOMMU_SUPPORT is not set # CONFIG_IOMMU_SUPPORT is not set
CONFIG_EXT3_FS=y CONFIG_EXT3_FS=y
CONFIG_EXT4_FS=y
CONFIG_MSDOS_FS=y CONFIG_MSDOS_FS=y
CONFIG_VFAT_FS=y CONFIG_VFAT_FS=y
CONFIG_NTFS_FS=y CONFIG_NTFS_FS=y
CONFIG_TMPFS=y CONFIG_TMPFS=y
CONFIG_JFFS2_FS=y
CONFIG_NFS_FS=y CONFIG_NFS_FS=y
CONFIG_NLS_CODEPAGE_437=y CONFIG_NLS_CODEPAGE_437=y
CONFIG_NLS_ISO8859_1=y CONFIG_NLS_ISO8859_1=y
......
...@@ -4,6 +4,7 @@ CONFIG_DEFAULT_HOSTNAME="ARCLinux" ...@@ -4,6 +4,7 @@ CONFIG_DEFAULT_HOSTNAME="ARCLinux"
# CONFIG_SWAP is not set # CONFIG_SWAP is not set
CONFIG_SYSVIPC=y CONFIG_SYSVIPC=y
CONFIG_POSIX_MQUEUE=y CONFIG_POSIX_MQUEUE=y
# CONFIG_CROSS_MEMORY_ATTACH is not set
CONFIG_HIGH_RES_TIMERS=y CONFIG_HIGH_RES_TIMERS=y
CONFIG_IKCONFIG=y CONFIG_IKCONFIG=y
CONFIG_IKCONFIG_PROC=y CONFIG_IKCONFIG_PROC=y
...@@ -26,7 +27,6 @@ CONFIG_ARC_PLAT_SIM=y ...@@ -26,7 +27,6 @@ CONFIG_ARC_PLAT_SIM=y
CONFIG_ARC_BUILTIN_DTB_NAME="nsim_700" CONFIG_ARC_BUILTIN_DTB_NAME="nsim_700"
CONFIG_PREEMPT=y CONFIG_PREEMPT=y
# CONFIG_COMPACTION is not set # CONFIG_COMPACTION is not set
# CONFIG_CROSS_MEMORY_ATTACH is not set
CONFIG_NET=y CONFIG_NET=y
CONFIG_PACKET=y CONFIG_PACKET=y
CONFIG_UNIX=y CONFIG_UNIX=y
...@@ -34,6 +34,7 @@ CONFIG_UNIX_DIAG=y ...@@ -34,6 +34,7 @@ CONFIG_UNIX_DIAG=y
CONFIG_NET_KEY=y CONFIG_NET_KEY=y
CONFIG_INET=y CONFIG_INET=y
# CONFIG_IPV6 is not set # CONFIG_IPV6 is not set
CONFIG_DEVTMPFS=y
# CONFIG_STANDALONE is not set # CONFIG_STANDALONE is not set
# CONFIG_PREVENT_FIRMWARE_BUILD is not set # CONFIG_PREVENT_FIRMWARE_BUILD is not set
# CONFIG_FIRMWARE_IN_KERNEL is not set # CONFIG_FIRMWARE_IN_KERNEL is not set
...@@ -51,7 +52,6 @@ CONFIG_SERIAL_ARC=y ...@@ -51,7 +52,6 @@ CONFIG_SERIAL_ARC=y
CONFIG_SERIAL_ARC_CONSOLE=y CONFIG_SERIAL_ARC_CONSOLE=y
# CONFIG_HW_RANDOM is not set # CONFIG_HW_RANDOM is not set
# CONFIG_HWMON is not set # CONFIG_HWMON is not set
# CONFIG_VGA_CONSOLE is not set
# CONFIG_HID is not set # CONFIG_HID is not set
# CONFIG_USB_SUPPORT is not set # CONFIG_USB_SUPPORT is not set
# CONFIG_IOMMU_SUPPORT is not set # CONFIG_IOMMU_SUPPORT is not set
...@@ -63,4 +63,3 @@ CONFIG_NFS_FS=y ...@@ -63,4 +63,3 @@ CONFIG_NFS_FS=y
# CONFIG_ENABLE_WARN_DEPRECATED is not set # CONFIG_ENABLE_WARN_DEPRECATED is not set
# CONFIG_ENABLE_MUST_CHECK is not set # CONFIG_ENABLE_MUST_CHECK is not set
# CONFIG_DEBUG_PREEMPT is not set # CONFIG_DEBUG_PREEMPT is not set
CONFIG_XZ_DEC=y
...@@ -35,6 +35,7 @@ CONFIG_UNIX_DIAG=y ...@@ -35,6 +35,7 @@ CONFIG_UNIX_DIAG=y
CONFIG_NET_KEY=y CONFIG_NET_KEY=y
CONFIG_INET=y CONFIG_INET=y
# CONFIG_IPV6 is not set # CONFIG_IPV6 is not set
CONFIG_DEVTMPFS=y
# CONFIG_STANDALONE is not set # CONFIG_STANDALONE is not set
# CONFIG_PREVENT_FIRMWARE_BUILD is not set # CONFIG_PREVENT_FIRMWARE_BUILD is not set
# CONFIG_FIRMWARE_IN_KERNEL is not set # CONFIG_FIRMWARE_IN_KERNEL is not set
...@@ -49,7 +50,6 @@ CONFIG_SERIAL_ARC=y ...@@ -49,7 +50,6 @@ CONFIG_SERIAL_ARC=y
CONFIG_SERIAL_ARC_CONSOLE=y CONFIG_SERIAL_ARC_CONSOLE=y
# CONFIG_HW_RANDOM is not set # CONFIG_HW_RANDOM is not set
# CONFIG_HWMON is not set # CONFIG_HWMON is not set
# CONFIG_VGA_CONSOLE is not set
# CONFIG_HID is not set # CONFIG_HID is not set
# CONFIG_USB_SUPPORT is not set # CONFIG_USB_SUPPORT is not set
# CONFIG_IOMMU_SUPPORT is not set # CONFIG_IOMMU_SUPPORT is not set
...@@ -61,4 +61,3 @@ CONFIG_NFS_FS=y ...@@ -61,4 +61,3 @@ CONFIG_NFS_FS=y
# CONFIG_ENABLE_WARN_DEPRECATED is not set # CONFIG_ENABLE_WARN_DEPRECATED is not set
# CONFIG_ENABLE_MUST_CHECK is not set # CONFIG_ENABLE_MUST_CHECK is not set
# CONFIG_DEBUG_PREEMPT is not set # CONFIG_DEBUG_PREEMPT is not set
CONFIG_XZ_DEC=y
...@@ -2,6 +2,7 @@ CONFIG_CROSS_COMPILE="arc-linux-" ...@@ -2,6 +2,7 @@ CONFIG_CROSS_COMPILE="arc-linux-"
# CONFIG_LOCALVERSION_AUTO is not set # CONFIG_LOCALVERSION_AUTO is not set
CONFIG_DEFAULT_HOSTNAME="ARCLinux" CONFIG_DEFAULT_HOSTNAME="ARCLinux"
# CONFIG_SWAP is not set # CONFIG_SWAP is not set
# CONFIG_CROSS_MEMORY_ATTACH is not set
CONFIG_HIGH_RES_TIMERS=y CONFIG_HIGH_RES_TIMERS=y
CONFIG_IKCONFIG=y CONFIG_IKCONFIG=y
CONFIG_IKCONFIG_PROC=y CONFIG_IKCONFIG_PROC=y
...@@ -21,13 +22,11 @@ CONFIG_MODULES=y ...@@ -21,13 +22,11 @@ CONFIG_MODULES=y
# CONFIG_IOSCHED_DEADLINE is not set # CONFIG_IOSCHED_DEADLINE is not set
# CONFIG_IOSCHED_CFQ is not set # CONFIG_IOSCHED_CFQ is not set
CONFIG_ARC_PLAT_SIM=y CONFIG_ARC_PLAT_SIM=y
CONFIG_ARC_BOARD_ML509=y
CONFIG_ISA_ARCV2=y CONFIG_ISA_ARCV2=y
CONFIG_SMP=y CONFIG_SMP=y
CONFIG_ARC_BUILTIN_DTB_NAME="nsim_hs_idu" CONFIG_ARC_BUILTIN_DTB_NAME="nsim_hs_idu"
CONFIG_PREEMPT=y CONFIG_PREEMPT=y
# CONFIG_COMPACTION is not set # CONFIG_COMPACTION is not set
# CONFIG_CROSS_MEMORY_ATTACH is not set
CONFIG_NET=y CONFIG_NET=y
CONFIG_PACKET=y CONFIG_PACKET=y
CONFIG_UNIX=y CONFIG_UNIX=y
...@@ -35,6 +34,7 @@ CONFIG_UNIX_DIAG=y ...@@ -35,6 +34,7 @@ CONFIG_UNIX_DIAG=y
CONFIG_NET_KEY=y CONFIG_NET_KEY=y
CONFIG_INET=y CONFIG_INET=y
# CONFIG_IPV6 is not set # CONFIG_IPV6 is not set
CONFIG_DEVTMPFS=y
# CONFIG_STANDALONE is not set # CONFIG_STANDALONE is not set
# CONFIG_PREVENT_FIRMWARE_BUILD is not set # CONFIG_PREVENT_FIRMWARE_BUILD is not set
# CONFIG_FIRMWARE_IN_KERNEL is not set # CONFIG_FIRMWARE_IN_KERNEL is not set
...@@ -49,7 +49,6 @@ CONFIG_SERIAL_ARC=y ...@@ -49,7 +49,6 @@ CONFIG_SERIAL_ARC=y
CONFIG_SERIAL_ARC_CONSOLE=y CONFIG_SERIAL_ARC_CONSOLE=y
# CONFIG_HW_RANDOM is not set # CONFIG_HW_RANDOM is not set
# CONFIG_HWMON is not set # CONFIG_HWMON is not set
# CONFIG_VGA_CONSOLE is not set
# CONFIG_HID is not set # CONFIG_HID is not set
# CONFIG_USB_SUPPORT is not set # CONFIG_USB_SUPPORT is not set
# CONFIG_IOMMU_SUPPORT is not set # CONFIG_IOMMU_SUPPORT is not set
...@@ -60,4 +59,3 @@ CONFIG_TMPFS=y ...@@ -60,4 +59,3 @@ CONFIG_TMPFS=y
CONFIG_NFS_FS=y CONFIG_NFS_FS=y
# CONFIG_ENABLE_WARN_DEPRECATED is not set # CONFIG_ENABLE_WARN_DEPRECATED is not set
# CONFIG_ENABLE_MUST_CHECK is not set # CONFIG_ENABLE_MUST_CHECK is not set
CONFIG_XZ_DEC=y
...@@ -33,6 +33,7 @@ CONFIG_UNIX_DIAG=y ...@@ -33,6 +33,7 @@ CONFIG_UNIX_DIAG=y
CONFIG_NET_KEY=y CONFIG_NET_KEY=y
CONFIG_INET=y CONFIG_INET=y
# CONFIG_IPV6 is not set # CONFIG_IPV6 is not set
CONFIG_DEVTMPFS=y
# CONFIG_STANDALONE is not set # CONFIG_STANDALONE is not set
# CONFIG_PREVENT_FIRMWARE_BUILD is not set # CONFIG_PREVENT_FIRMWARE_BUILD is not set
# CONFIG_FIRMWARE_IN_KERNEL is not set # CONFIG_FIRMWARE_IN_KERNEL is not set
...@@ -58,7 +59,6 @@ CONFIG_SERIAL_OF_PLATFORM=y ...@@ -58,7 +59,6 @@ CONFIG_SERIAL_OF_PLATFORM=y
# CONFIG_HW_RANDOM is not set # CONFIG_HW_RANDOM is not set
# CONFIG_HWMON is not set # CONFIG_HWMON is not set
CONFIG_FB=y CONFIG_FB=y
# CONFIG_VGA_CONSOLE is not set
CONFIG_FRAMEBUFFER_CONSOLE=y CONFIG_FRAMEBUFFER_CONSOLE=y
CONFIG_LOGO=y CONFIG_LOGO=y
# CONFIG_HID is not set # CONFIG_HID is not set
......
...@@ -34,12 +34,12 @@ CONFIG_UNIX_DIAG=y ...@@ -34,12 +34,12 @@ CONFIG_UNIX_DIAG=y
CONFIG_NET_KEY=y CONFIG_NET_KEY=y
CONFIG_INET=y CONFIG_INET=y
# CONFIG_IPV6 is not set # CONFIG_IPV6 is not set
CONFIG_DEVTMPFS=y
# CONFIG_STANDALONE is not set # CONFIG_STANDALONE is not set
# CONFIG_PREVENT_FIRMWARE_BUILD is not set # CONFIG_PREVENT_FIRMWARE_BUILD is not set
# CONFIG_FIRMWARE_IN_KERNEL is not set # CONFIG_FIRMWARE_IN_KERNEL is not set
# CONFIG_BLK_DEV is not set # CONFIG_BLK_DEV is not set
CONFIG_NETDEVICES=y CONFIG_NETDEVICES=y
CONFIG_NET_OSCI_LAN=y
CONFIG_INPUT_EVDEV=y CONFIG_INPUT_EVDEV=y
# CONFIG_MOUSE_PS2_ALPS is not set # CONFIG_MOUSE_PS2_ALPS is not set
# CONFIG_MOUSE_PS2_LOGIPS2PP is not set # CONFIG_MOUSE_PS2_LOGIPS2PP is not set
...@@ -58,7 +58,6 @@ CONFIG_SERIAL_OF_PLATFORM=y ...@@ -58,7 +58,6 @@ CONFIG_SERIAL_OF_PLATFORM=y
# CONFIG_HW_RANDOM is not set # CONFIG_HW_RANDOM is not set
# CONFIG_HWMON is not set # CONFIG_HWMON is not set
CONFIG_FB=y CONFIG_FB=y
# CONFIG_VGA_CONSOLE is not set
CONFIG_FRAMEBUFFER_CONSOLE=y CONFIG_FRAMEBUFFER_CONSOLE=y
CONFIG_LOGO=y CONFIG_LOGO=y
# CONFIG_HID is not set # CONFIG_HID is not set
......
...@@ -2,6 +2,7 @@ CONFIG_CROSS_COMPILE="arc-linux-" ...@@ -2,6 +2,7 @@ CONFIG_CROSS_COMPILE="arc-linux-"
CONFIG_DEFAULT_HOSTNAME="ARCLinux" CONFIG_DEFAULT_HOSTNAME="ARCLinux"
# CONFIG_SWAP is not set # CONFIG_SWAP is not set
CONFIG_SYSVIPC=y CONFIG_SYSVIPC=y
# CONFIG_CROSS_MEMORY_ATTACH is not set
CONFIG_NO_HZ=y CONFIG_NO_HZ=y
CONFIG_HIGH_RES_TIMERS=y CONFIG_HIGH_RES_TIMERS=y
CONFIG_IKCONFIG=y CONFIG_IKCONFIG=y
...@@ -18,15 +19,11 @@ CONFIG_MODULES=y ...@@ -18,15 +19,11 @@ CONFIG_MODULES=y
# CONFIG_IOSCHED_DEADLINE is not set # CONFIG_IOSCHED_DEADLINE is not set
# CONFIG_IOSCHED_CFQ is not set # CONFIG_IOSCHED_CFQ is not set
CONFIG_ARC_PLAT_SIM=y CONFIG_ARC_PLAT_SIM=y
CONFIG_ARC_BOARD_ML509=y
CONFIG_ISA_ARCV2=y CONFIG_ISA_ARCV2=y
CONFIG_SMP=y CONFIG_SMP=y
CONFIG_ARC_HAS_LL64=y
# CONFIG_ARC_HAS_RTSC is not set
CONFIG_ARC_BUILTIN_DTB_NAME="nsimosci_hs_idu" CONFIG_ARC_BUILTIN_DTB_NAME="nsimosci_hs_idu"
CONFIG_PREEMPT=y CONFIG_PREEMPT=y
# CONFIG_COMPACTION is not set # CONFIG_COMPACTION is not set
# CONFIG_CROSS_MEMORY_ATTACH is not set
CONFIG_NET=y CONFIG_NET=y
CONFIG_PACKET=y CONFIG_PACKET=y
CONFIG_PACKET_DIAG=y CONFIG_PACKET_DIAG=y
...@@ -40,6 +37,7 @@ CONFIG_INET=y ...@@ -40,6 +37,7 @@ CONFIG_INET=y
# CONFIG_INET_LRO is not set # CONFIG_INET_LRO is not set
# CONFIG_IPV6 is not set # CONFIG_IPV6 is not set
# CONFIG_WIRELESS is not set # CONFIG_WIRELESS is not set
CONFIG_DEVTMPFS=y
# CONFIG_STANDALONE is not set # CONFIG_STANDALONE is not set
# CONFIG_PREVENT_FIRMWARE_BUILD is not set # CONFIG_PREVENT_FIRMWARE_BUILD is not set
# CONFIG_FIRMWARE_IN_KERNEL is not set # CONFIG_FIRMWARE_IN_KERNEL is not set
...@@ -56,14 +54,11 @@ CONFIG_NETDEVICES=y ...@@ -56,14 +54,11 @@ CONFIG_NETDEVICES=y
# CONFIG_NET_VENDOR_STMICRO is not set # CONFIG_NET_VENDOR_STMICRO is not set
# CONFIG_NET_VENDOR_VIA is not set # CONFIG_NET_VENDOR_VIA is not set
# CONFIG_NET_VENDOR_WIZNET is not set # CONFIG_NET_VENDOR_WIZNET is not set
CONFIG_NET_OSCI_LAN=y
# CONFIG_WLAN is not set # CONFIG_WLAN is not set
CONFIG_INPUT_EVDEV=y CONFIG_INPUT_EVDEV=y
CONFIG_MOUSE_PS2_TOUCHKIT=y CONFIG_MOUSE_PS2_TOUCHKIT=y
# CONFIG_SERIO_SERPORT is not set # CONFIG_SERIO_SERPORT is not set
CONFIG_SERIO_LIBPS2=y
CONFIG_SERIO_ARC_PS2=y CONFIG_SERIO_ARC_PS2=y
CONFIG_VT_HW_CONSOLE_BINDING=y
# CONFIG_LEGACY_PTYS is not set # CONFIG_LEGACY_PTYS is not set
# CONFIG_DEVKMEM is not set # CONFIG_DEVKMEM is not set
CONFIG_SERIAL_8250=y CONFIG_SERIAL_8250=y
...@@ -75,9 +70,6 @@ CONFIG_SERIAL_OF_PLATFORM=y ...@@ -75,9 +70,6 @@ CONFIG_SERIAL_OF_PLATFORM=y
# CONFIG_HW_RANDOM is not set # CONFIG_HW_RANDOM is not set
# CONFIG_HWMON is not set # CONFIG_HWMON is not set
CONFIG_FB=y CONFIG_FB=y
CONFIG_ARCPGU_RGB888=y
CONFIG_ARCPGU_DISPTYPE=0
# CONFIG_VGA_CONSOLE is not set
CONFIG_FRAMEBUFFER_CONSOLE=y CONFIG_FRAMEBUFFER_CONSOLE=y
CONFIG_LOGO=y CONFIG_LOGO=y
# CONFIG_HID is not set # CONFIG_HID is not set
......
...@@ -3,6 +3,7 @@ CONFIG_CROSS_COMPILE="arc-linux-" ...@@ -3,6 +3,7 @@ CONFIG_CROSS_COMPILE="arc-linux-"
CONFIG_DEFAULT_HOSTNAME="tb10x" CONFIG_DEFAULT_HOSTNAME="tb10x"
CONFIG_SYSVIPC=y CONFIG_SYSVIPC=y
CONFIG_POSIX_MQUEUE=y CONFIG_POSIX_MQUEUE=y
# CONFIG_CROSS_MEMORY_ATTACH is not set
CONFIG_HIGH_RES_TIMERS=y CONFIG_HIGH_RES_TIMERS=y
CONFIG_BSD_PROCESS_ACCT=y CONFIG_BSD_PROCESS_ACCT=y
CONFIG_BSD_PROCESS_ACCT_V3=y CONFIG_BSD_PROCESS_ACCT_V3=y
...@@ -26,12 +27,10 @@ CONFIG_MODULE_UNLOAD=y ...@@ -26,12 +27,10 @@ CONFIG_MODULE_UNLOAD=y
# CONFIG_BLOCK is not set # CONFIG_BLOCK is not set
CONFIG_ARC_PLAT_TB10X=y CONFIG_ARC_PLAT_TB10X=y
CONFIG_ARC_CACHE_LINE_SHIFT=5 CONFIG_ARC_CACHE_LINE_SHIFT=5
CONFIG_ARC_STACK_NONEXEC=y
CONFIG_HZ=250 CONFIG_HZ=250
CONFIG_ARC_BUILTIN_DTB_NAME="abilis_tb100_dvk" CONFIG_ARC_BUILTIN_DTB_NAME="abilis_tb100_dvk"
CONFIG_PREEMPT_VOLUNTARY=y CONFIG_PREEMPT_VOLUNTARY=y
# CONFIG_COMPACTION is not set # CONFIG_COMPACTION is not set
# CONFIG_CROSS_MEMORY_ATTACH is not set
CONFIG_NET=y CONFIG_NET=y
CONFIG_PACKET=y CONFIG_PACKET=y
CONFIG_UNIX=y CONFIG_UNIX=y
...@@ -44,8 +43,8 @@ CONFIG_IP_MULTICAST=y ...@@ -44,8 +43,8 @@ CONFIG_IP_MULTICAST=y
# CONFIG_INET_DIAG is not set # CONFIG_INET_DIAG is not set
# CONFIG_IPV6 is not set # CONFIG_IPV6 is not set
# CONFIG_WIRELESS is not set # CONFIG_WIRELESS is not set
CONFIG_DEVTMPFS=y
# CONFIG_FIRMWARE_IN_KERNEL is not set # CONFIG_FIRMWARE_IN_KERNEL is not set
CONFIG_PROC_DEVICETREE=y
CONFIG_NETDEVICES=y CONFIG_NETDEVICES=y
# CONFIG_NET_CADENCE is not set # CONFIG_NET_CADENCE is not set
# CONFIG_NET_VENDOR_BROADCOM is not set # CONFIG_NET_VENDOR_BROADCOM is not set
...@@ -55,9 +54,6 @@ CONFIG_NETDEVICES=y ...@@ -55,9 +54,6 @@ CONFIG_NETDEVICES=y
# CONFIG_NET_VENDOR_NATSEMI is not set # CONFIG_NET_VENDOR_NATSEMI is not set
# CONFIG_NET_VENDOR_SEEQ is not set # CONFIG_NET_VENDOR_SEEQ is not set
CONFIG_STMMAC_ETH=y CONFIG_STMMAC_ETH=y
CONFIG_STMMAC_DEBUG_FS=y
CONFIG_STMMAC_DA=y
CONFIG_STMMAC_CHAINED=y
# CONFIG_NET_VENDOR_WIZNET is not set # CONFIG_NET_VENDOR_WIZNET is not set
# CONFIG_WLAN is not set # CONFIG_WLAN is not set
# CONFIG_INPUT is not set # CONFIG_INPUT is not set
...@@ -91,7 +87,6 @@ CONFIG_LEDS_TRIGGER_DEFAULT_ON=y ...@@ -91,7 +87,6 @@ CONFIG_LEDS_TRIGGER_DEFAULT_ON=y
CONFIG_LEDS_TRIGGER_TRANSIENT=y CONFIG_LEDS_TRIGGER_TRANSIENT=y
CONFIG_DMADEVICES=y CONFIG_DMADEVICES=y
CONFIG_DW_DMAC=y CONFIG_DW_DMAC=y
CONFIG_NET_DMA=y
CONFIG_ASYNC_TX_DMA=y CONFIG_ASYNC_TX_DMA=y
# CONFIG_IOMMU_SUPPORT is not set # CONFIG_IOMMU_SUPPORT is not set
# CONFIG_DNOTIFY is not set # CONFIG_DNOTIFY is not set
...@@ -100,17 +95,16 @@ CONFIG_TMPFS=y ...@@ -100,17 +95,16 @@ CONFIG_TMPFS=y
CONFIG_CONFIGFS_FS=y CONFIG_CONFIGFS_FS=y
# CONFIG_MISC_FILESYSTEMS is not set # CONFIG_MISC_FILESYSTEMS is not set
# CONFIG_NETWORK_FILESYSTEMS is not set # CONFIG_NETWORK_FILESYSTEMS is not set
CONFIG_DEBUG_INFO=y
# CONFIG_ENABLE_WARN_DEPRECATED is not set # CONFIG_ENABLE_WARN_DEPRECATED is not set
CONFIG_MAGIC_SYSRQ=y
CONFIG_STRIP_ASM_SYMS=y CONFIG_STRIP_ASM_SYMS=y
CONFIG_DEBUG_FS=y CONFIG_DEBUG_FS=y
CONFIG_HEADERS_CHECK=y CONFIG_HEADERS_CHECK=y
CONFIG_DEBUG_SECTION_MISMATCH=y CONFIG_DEBUG_SECTION_MISMATCH=y
CONFIG_MAGIC_SYSRQ=y
CONFIG_DEBUG_MEMORY_INIT=y
CONFIG_DEBUG_STACKOVERFLOW=y
CONFIG_DETECT_HUNG_TASK=y CONFIG_DETECT_HUNG_TASK=y
CONFIG_SCHEDSTATS=y CONFIG_SCHEDSTATS=y
CONFIG_TIMER_STATS=y CONFIG_TIMER_STATS=y
CONFIG_DEBUG_INFO=y
CONFIG_DEBUG_MEMORY_INIT=y
CONFIG_DEBUG_STACKOVERFLOW=y
# CONFIG_CRYPTO_ANSI_CPRNG is not set
# CONFIG_CRYPTO_HW is not set # CONFIG_CRYPTO_HW is not set
...@@ -10,7 +10,8 @@ ...@@ -10,7 +10,8 @@
#define _ASM_ARC_ARCREGS_H #define _ASM_ARC_ARCREGS_H
/* Build Configuration Registers */ /* Build Configuration Registers */
#define ARC_REG_DCCMBASE_BCR 0x61 /* DCCM Base Addr */ #define ARC_REG_AUX_DCCM 0x18 /* DCCM Base Addr ARCv2 */
#define ARC_REG_DCCM_BASE_BUILD 0x61 /* DCCM Base Addr ARCompact */
#define ARC_REG_CRC_BCR 0x62 #define ARC_REG_CRC_BCR 0x62
#define ARC_REG_VECBASE_BCR 0x68 #define ARC_REG_VECBASE_BCR 0x68
#define ARC_REG_PERIBASE_BCR 0x69 #define ARC_REG_PERIBASE_BCR 0x69
...@@ -18,10 +19,10 @@ ...@@ -18,10 +19,10 @@
#define ARC_REG_DPFP_BCR 0x6C /* ARCompact: Dbl Precision FPU */ #define ARC_REG_DPFP_BCR 0x6C /* ARCompact: Dbl Precision FPU */
#define ARC_REG_FP_V2_BCR 0xc8 /* ARCv2 FPU */ #define ARC_REG_FP_V2_BCR 0xc8 /* ARCv2 FPU */
#define ARC_REG_SLC_BCR 0xce #define ARC_REG_SLC_BCR 0xce
#define ARC_REG_DCCM_BCR 0x74 /* DCCM Present + SZ */ #define ARC_REG_DCCM_BUILD 0x74 /* DCCM size (common) */
#define ARC_REG_TIMERS_BCR 0x75 #define ARC_REG_TIMERS_BCR 0x75
#define ARC_REG_AP_BCR 0x76 #define ARC_REG_AP_BCR 0x76
#define ARC_REG_ICCM_BCR 0x78 #define ARC_REG_ICCM_BUILD 0x78 /* ICCM size (common) */
#define ARC_REG_XY_MEM_BCR 0x79 #define ARC_REG_XY_MEM_BCR 0x79
#define ARC_REG_MAC_BCR 0x7a #define ARC_REG_MAC_BCR 0x7a
#define ARC_REG_MUL_BCR 0x7b #define ARC_REG_MUL_BCR 0x7b
...@@ -36,6 +37,7 @@ ...@@ -36,6 +37,7 @@
#define ARC_REG_IRQ_BCR 0xF3 #define ARC_REG_IRQ_BCR 0xF3
#define ARC_REG_SMART_BCR 0xFF #define ARC_REG_SMART_BCR 0xFF
#define ARC_REG_CLUSTER_BCR 0xcf #define ARC_REG_CLUSTER_BCR 0xcf
#define ARC_REG_AUX_ICCM 0x208 /* ICCM Base Addr (ARCv2) */
/* status32 Bits Positions */ /* status32 Bits Positions */
#define STATUS_AE_BIT 5 /* Exception active */ #define STATUS_AE_BIT 5 /* Exception active */
...@@ -246,7 +248,7 @@ struct bcr_perip { ...@@ -246,7 +248,7 @@ struct bcr_perip {
#endif #endif
}; };
struct bcr_iccm { struct bcr_iccm_arcompact {
#ifdef CONFIG_CPU_BIG_ENDIAN #ifdef CONFIG_CPU_BIG_ENDIAN
unsigned int base:16, pad:5, sz:3, ver:8; unsigned int base:16, pad:5, sz:3, ver:8;
#else #else
...@@ -254,17 +256,15 @@ struct bcr_iccm { ...@@ -254,17 +256,15 @@ struct bcr_iccm {
#endif #endif
}; };
/* DCCM Base Address Register: ARC_REG_DCCMBASE_BCR */ struct bcr_iccm_arcv2 {
struct bcr_dccm_base {
#ifdef CONFIG_CPU_BIG_ENDIAN #ifdef CONFIG_CPU_BIG_ENDIAN
unsigned int addr:24, ver:8; unsigned int pad:8, sz11:4, sz01:4, sz10:4, sz00:4, ver:8;
#else #else
unsigned int ver:8, addr:24; unsigned int ver:8, sz00:4, sz10:4, sz01:4, sz11:4, pad:8;
#endif #endif
}; };
/* DCCM RAM Configuration Register: ARC_REG_DCCM_BCR */ struct bcr_dccm_arcompact {
struct bcr_dccm {
#ifdef CONFIG_CPU_BIG_ENDIAN #ifdef CONFIG_CPU_BIG_ENDIAN
unsigned int res:21, sz:3, ver:8; unsigned int res:21, sz:3, ver:8;
#else #else
...@@ -272,6 +272,14 @@ struct bcr_dccm { ...@@ -272,6 +272,14 @@ struct bcr_dccm {
#endif #endif
}; };
struct bcr_dccm_arcv2 {
#ifdef CONFIG_CPU_BIG_ENDIAN
unsigned int pad2:12, cyc:3, pad1:1, sz1:4, sz0:4, ver:8;
#else
unsigned int ver:8, sz0:4, sz1:4, pad1:1, cyc:3, pad2:12;
#endif
};
/* ARCompact: Both SP and DP FPU BCRs have same format */ /* ARCompact: Both SP and DP FPU BCRs have same format */
struct bcr_fp_arcompact { struct bcr_fp_arcompact {
#ifdef CONFIG_CPU_BIG_ENDIAN #ifdef CONFIG_CPU_BIG_ENDIAN
...@@ -315,9 +323,9 @@ struct bcr_bpu_arcv2 { ...@@ -315,9 +323,9 @@ struct bcr_bpu_arcv2 {
struct bcr_generic { struct bcr_generic {
#ifdef CONFIG_CPU_BIG_ENDIAN #ifdef CONFIG_CPU_BIG_ENDIAN
unsigned int pad:24, ver:8; unsigned int info:24, ver:8;
#else #else
unsigned int ver:8, pad:24; unsigned int ver:8, info:24;
#endif #endif
}; };
......
...@@ -16,11 +16,9 @@ ...@@ -16,11 +16,9 @@
#ifdef CONFIG_ISA_ARCOMPACT #ifdef CONFIG_ISA_ARCOMPACT
#define TIMER0_IRQ 3 #define TIMER0_IRQ 3
#define TIMER1_IRQ 4 #define TIMER1_IRQ 4
#define IPI_IRQ (NR_CPU_IRQS-1) /* dummy to enable SMP build for up hardware */
#else #else
#define TIMER0_IRQ 16 #define TIMER0_IRQ 16
#define TIMER1_IRQ 17 #define TIMER1_IRQ 17
#define IPI_IRQ 19
#endif #endif
#include <linux/interrupt.h> #include <linux/interrupt.h>
......
...@@ -22,6 +22,7 @@ ...@@ -22,6 +22,7 @@
#define AUX_IRQ_CTRL 0x00E #define AUX_IRQ_CTRL 0x00E
#define AUX_IRQ_ACT 0x043 /* Active Intr across all levels */ #define AUX_IRQ_ACT 0x043 /* Active Intr across all levels */
#define AUX_IRQ_LVL_PEND 0x200 /* Pending Intr across all levels */ #define AUX_IRQ_LVL_PEND 0x200 /* Pending Intr across all levels */
#define AUX_IRQ_HINT 0x201 /* For generating Soft Interrupts */
#define AUX_IRQ_PRIORITY 0x206 #define AUX_IRQ_PRIORITY 0x206
#define ICAUSE 0x40a #define ICAUSE 0x40a
#define AUX_IRQ_SELECT 0x40b #define AUX_IRQ_SELECT 0x40b
...@@ -115,6 +116,16 @@ static inline int arch_irqs_disabled(void) ...@@ -115,6 +116,16 @@ static inline int arch_irqs_disabled(void)
return arch_irqs_disabled_flags(arch_local_save_flags()); return arch_irqs_disabled_flags(arch_local_save_flags());
} }
static inline void arc_softirq_trigger(int irq)
{
write_aux_reg(AUX_IRQ_HINT, irq);
}
static inline void arc_softirq_clear(int irq)
{
write_aux_reg(AUX_IRQ_HINT, 0);
}
#else #else
.macro IRQ_DISABLE scratch .macro IRQ_DISABLE scratch
......
...@@ -45,11 +45,12 @@ VECTOR reserved ; Reserved slots ...@@ -45,11 +45,12 @@ VECTOR reserved ; Reserved slots
VECTOR handle_interrupt ; (16) Timer0 VECTOR handle_interrupt ; (16) Timer0
VECTOR handle_interrupt ; unused (Timer1) VECTOR handle_interrupt ; unused (Timer1)
VECTOR handle_interrupt ; unused (WDT) VECTOR handle_interrupt ; unused (WDT)
VECTOR handle_interrupt ; (19) ICI (inter core interrupt) VECTOR handle_interrupt ; (19) Inter core Interrupt (IPI)
VECTOR handle_interrupt VECTOR handle_interrupt ; (20) perf Interrupt
VECTOR handle_interrupt VECTOR handle_interrupt ; (21) Software Triggered Intr (Self IPI)
VECTOR handle_interrupt VECTOR handle_interrupt ; unused
VECTOR handle_interrupt ; (23) End of fixed IRQs VECTOR handle_interrupt ; (23) unused
# End of fixed IRQs
.rept CONFIG_ARC_NUMBER_OF_INTERRUPTS - 8 .rept CONFIG_ARC_NUMBER_OF_INTERRUPTS - 8
VECTOR handle_interrupt VECTOR handle_interrupt
......
...@@ -81,9 +81,6 @@ static int arc_intc_domain_map(struct irq_domain *d, unsigned int irq, ...@@ -81,9 +81,6 @@ static int arc_intc_domain_map(struct irq_domain *d, unsigned int irq,
{ {
switch (irq) { switch (irq) {
case TIMER0_IRQ: case TIMER0_IRQ:
#ifdef CONFIG_SMP
case IPI_IRQ:
#endif
irq_set_chip_and_handler(irq, &onchip_intc, handle_percpu_irq); irq_set_chip_and_handler(irq, &onchip_intc, handle_percpu_irq);
break; break;
default: default:
......
...@@ -11,9 +11,13 @@ ...@@ -11,9 +11,13 @@
#include <linux/smp.h> #include <linux/smp.h>
#include <linux/irq.h> #include <linux/irq.h>
#include <linux/spinlock.h> #include <linux/spinlock.h>
#include <asm/irqflags-arcv2.h>
#include <asm/mcip.h> #include <asm/mcip.h>
#include <asm/setup.h> #include <asm/setup.h>
#define IPI_IRQ 19
#define SOFTIRQ_IRQ 21
static char smp_cpuinfo_buf[128]; static char smp_cpuinfo_buf[128];
static int idu_detected; static int idu_detected;
...@@ -22,6 +26,7 @@ static DEFINE_RAW_SPINLOCK(mcip_lock); ...@@ -22,6 +26,7 @@ static DEFINE_RAW_SPINLOCK(mcip_lock);
static void mcip_setup_per_cpu(int cpu) static void mcip_setup_per_cpu(int cpu)
{ {
smp_ipi_irq_setup(cpu, IPI_IRQ); smp_ipi_irq_setup(cpu, IPI_IRQ);
smp_ipi_irq_setup(cpu, SOFTIRQ_IRQ);
} }
static void mcip_ipi_send(int cpu) static void mcip_ipi_send(int cpu)
...@@ -29,46 +34,44 @@ static void mcip_ipi_send(int cpu) ...@@ -29,46 +34,44 @@ static void mcip_ipi_send(int cpu)
unsigned long flags; unsigned long flags;
int ipi_was_pending; int ipi_was_pending;
/* ARConnect can only send IPI to others */
if (unlikely(cpu == raw_smp_processor_id())) {
arc_softirq_trigger(SOFTIRQ_IRQ);
return;
}
raw_spin_lock_irqsave(&mcip_lock, flags);
/* /*
* NOTE: We must spin here if the other cpu hasn't yet * If receiver already has a pending interrupt, elide sending this one.
* serviced a previous message. This can burn lots * Linux cross core calling works well with concurrent IPIs
* of time, but we MUST follows this protocol or * coalesced into one
* ipi messages can be lost!!! * see arch/arc/kernel/smp.c: ipi_send_msg_one()
* Also, we must release the lock in this loop because
* the other side may get to this same loop and not
* be able to ack -- thus causing deadlock.
*/ */
__mcip_cmd(CMD_INTRPT_READ_STATUS, cpu);
ipi_was_pending = read_aux_reg(ARC_REG_MCIP_READBACK);
if (!ipi_was_pending)
__mcip_cmd(CMD_INTRPT_GENERATE_IRQ, cpu);
do {
raw_spin_lock_irqsave(&mcip_lock, flags);
__mcip_cmd(CMD_INTRPT_READ_STATUS, cpu);
ipi_was_pending = read_aux_reg(ARC_REG_MCIP_READBACK);
if (ipi_was_pending == 0)
break; /* break out but keep lock */
raw_spin_unlock_irqrestore(&mcip_lock, flags);
} while (1);
__mcip_cmd(CMD_INTRPT_GENERATE_IRQ, cpu);
raw_spin_unlock_irqrestore(&mcip_lock, flags); raw_spin_unlock_irqrestore(&mcip_lock, flags);
#ifdef CONFIG_ARC_IPI_DBG
if (ipi_was_pending)
pr_info("IPI ACK delayed from cpu %d\n", cpu);
#endif
} }
static void mcip_ipi_clear(int irq) static void mcip_ipi_clear(int irq)
{ {
unsigned int cpu, c; unsigned int cpu, c;
unsigned long flags; unsigned long flags;
unsigned int __maybe_unused copy;
if (unlikely(irq == SOFTIRQ_IRQ)) {
arc_softirq_clear(irq);
return;
}
raw_spin_lock_irqsave(&mcip_lock, flags); raw_spin_lock_irqsave(&mcip_lock, flags);
/* Who sent the IPI */ /* Who sent the IPI */
__mcip_cmd(CMD_INTRPT_CHECK_SOURCE, 0); __mcip_cmd(CMD_INTRPT_CHECK_SOURCE, 0);
copy = cpu = read_aux_reg(ARC_REG_MCIP_READBACK); /* 1,2,4,8... */ cpu = read_aux_reg(ARC_REG_MCIP_READBACK); /* 1,2,4,8... */
/* /*
* In rare case, multiple concurrent IPIs sent to same target can * In rare case, multiple concurrent IPIs sent to same target can
...@@ -82,12 +85,6 @@ static void mcip_ipi_clear(int irq) ...@@ -82,12 +85,6 @@ static void mcip_ipi_clear(int irq)
} while (cpu); } while (cpu);
raw_spin_unlock_irqrestore(&mcip_lock, flags); raw_spin_unlock_irqrestore(&mcip_lock, flags);
#ifdef CONFIG_ARC_IPI_DBG
if (c != __ffs(copy))
pr_info("IPIs from %x coalesced to %x\n",
copy, raw_smp_processor_id());
#endif
} }
static void mcip_probe_n_setup(void) static void mcip_probe_n_setup(void)
...@@ -111,10 +108,11 @@ static void mcip_probe_n_setup(void) ...@@ -111,10 +108,11 @@ static void mcip_probe_n_setup(void)
READ_BCR(ARC_REG_MCIP_BCR, mp); READ_BCR(ARC_REG_MCIP_BCR, mp);
sprintf(smp_cpuinfo_buf, sprintf(smp_cpuinfo_buf,
"Extn [SMP]\t: ARConnect (v%d): %d cores with %s%s%s%s\n", "Extn [SMP]\t: ARConnect (v%d): %d cores with %s%s%s%s%s\n",
mp.ver, mp.num_cores, mp.ver, mp.num_cores,
IS_AVAIL1(mp.ipi, "IPI "), IS_AVAIL1(mp.ipi, "IPI "),
IS_AVAIL1(mp.idu, "IDU "), IS_AVAIL1(mp.idu, "IDU "),
IS_AVAIL1(mp.llm, "LLM "),
IS_AVAIL1(mp.dbg, "DEBUG "), IS_AVAIL1(mp.dbg, "DEBUG "),
IS_AVAIL1(mp.gfrc, "GFRC")); IS_AVAIL1(mp.gfrc, "GFRC"));
......
...@@ -42,6 +42,53 @@ struct task_struct *_current_task[NR_CPUS]; /* For stack switching */ ...@@ -42,6 +42,53 @@ struct task_struct *_current_task[NR_CPUS]; /* For stack switching */
struct cpuinfo_arc cpuinfo_arc700[NR_CPUS]; struct cpuinfo_arc cpuinfo_arc700[NR_CPUS];
static void read_decode_ccm_bcr(struct cpuinfo_arc *cpu)
{
if (is_isa_arcompact()) {
struct bcr_iccm_arcompact iccm;
struct bcr_dccm_arcompact dccm;
READ_BCR(ARC_REG_ICCM_BUILD, iccm);
if (iccm.ver) {
cpu->iccm.sz = 4096 << iccm.sz; /* 8K to 512K */
cpu->iccm.base_addr = iccm.base << 16;
}
READ_BCR(ARC_REG_DCCM_BUILD, dccm);
if (dccm.ver) {
unsigned long base;
cpu->dccm.sz = 2048 << dccm.sz; /* 2K to 256K */
base = read_aux_reg(ARC_REG_DCCM_BASE_BUILD);
cpu->dccm.base_addr = base & ~0xF;
}
} else {
struct bcr_iccm_arcv2 iccm;
struct bcr_dccm_arcv2 dccm;
unsigned long region;
READ_BCR(ARC_REG_ICCM_BUILD, iccm);
if (iccm.ver) {
cpu->iccm.sz = 256 << iccm.sz00; /* 512B to 16M */
if (iccm.sz00 == 0xF && iccm.sz01 > 0)
cpu->iccm.sz <<= iccm.sz01;
region = read_aux_reg(ARC_REG_AUX_ICCM);
cpu->iccm.base_addr = region & 0xF0000000;
}
READ_BCR(ARC_REG_DCCM_BUILD, dccm);
if (dccm.ver) {
cpu->dccm.sz = 256 << dccm.sz0;
if (dccm.sz0 == 0xF && dccm.sz1 > 0)
cpu->dccm.sz <<= dccm.sz1;
region = read_aux_reg(ARC_REG_AUX_DCCM);
cpu->dccm.base_addr = region & 0xF0000000;
}
}
}
static void read_arc_build_cfg_regs(void) static void read_arc_build_cfg_regs(void)
{ {
struct bcr_perip uncached_space; struct bcr_perip uncached_space;
...@@ -76,36 +123,11 @@ static void read_arc_build_cfg_regs(void) ...@@ -76,36 +123,11 @@ static void read_arc_build_cfg_regs(void)
cpu->extn.swap = read_aux_reg(ARC_REG_SWAP_BCR) ? 1 : 0; /* 1,3 */ cpu->extn.swap = read_aux_reg(ARC_REG_SWAP_BCR) ? 1 : 0; /* 1,3 */
cpu->extn.crc = read_aux_reg(ARC_REG_CRC_BCR) ? 1 : 0; cpu->extn.crc = read_aux_reg(ARC_REG_CRC_BCR) ? 1 : 0;
cpu->extn.minmax = read_aux_reg(ARC_REG_MIXMAX_BCR) > 1 ? 1 : 0; /* 2 */ cpu->extn.minmax = read_aux_reg(ARC_REG_MIXMAX_BCR) > 1 ? 1 : 0; /* 2 */
/* Note that we read the CCM BCRs independent of kernel config
* This is to catch the cases where user doesn't know that
* CCMs are present in hardware build
*/
{
struct bcr_iccm iccm;
struct bcr_dccm dccm;
struct bcr_dccm_base dccm_base;
unsigned int bcr_32bit_val;
bcr_32bit_val = read_aux_reg(ARC_REG_ICCM_BCR);
if (bcr_32bit_val) {
iccm = *((struct bcr_iccm *)&bcr_32bit_val);
cpu->iccm.base_addr = iccm.base << 16;
cpu->iccm.sz = 0x2000 << (iccm.sz - 1);
}
bcr_32bit_val = read_aux_reg(ARC_REG_DCCM_BCR);
if (bcr_32bit_val) {
dccm = *((struct bcr_dccm *)&bcr_32bit_val);
cpu->dccm.sz = 0x800 << (dccm.sz);
READ_BCR(ARC_REG_DCCMBASE_BCR, dccm_base);
cpu->dccm.base_addr = dccm_base.addr << 8;
}
}
READ_BCR(ARC_REG_XY_MEM_BCR, cpu->extn_xymem); READ_BCR(ARC_REG_XY_MEM_BCR, cpu->extn_xymem);
/* Read CCM BCRs for boot reporting even if not enabled in Kconfig */
read_decode_ccm_bcr(cpu);
read_decode_mmu_bcr(); read_decode_mmu_bcr();
read_decode_cache_bcr(); read_decode_cache_bcr();
...@@ -237,8 +259,6 @@ static char *arc_cpu_mumbojumbo(int cpu_id, char *buf, int len) ...@@ -237,8 +259,6 @@ static char *arc_cpu_mumbojumbo(int cpu_id, char *buf, int len)
n += scnprintf(buf + n, len - n, "mpy[opt %d] ", opt); n += scnprintf(buf + n, len - n, "mpy[opt %d] ", opt);
} }
n += scnprintf(buf + n, len - n, "%s",
IS_USED_CFG(CONFIG_ARC_HAS_HW_MPY));
} }
n += scnprintf(buf + n, len - n, "%s%s%s%s%s%s%s%s\n", n += scnprintf(buf + n, len - n, "%s%s%s%s%s%s%s%s\n",
......
...@@ -336,11 +336,8 @@ irqreturn_t do_IPI(int irq, void *dev_id) ...@@ -336,11 +336,8 @@ irqreturn_t do_IPI(int irq, void *dev_id)
int rc; int rc;
rc = __do_IPI(msg); rc = __do_IPI(msg);
#ifdef CONFIG_ARC_IPI_DBG
/* IPI received but no valid @msg */
if (rc) if (rc)
pr_info("IPI with bogus msg %ld in %ld\n", msg, copy); pr_info("IPI with bogus msg %ld in %ld\n", msg, copy);
#endif
pending &= ~(1U << msg); pending &= ~(1U << msg);
} while (pending); } while (pending);
......
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