diff options
Diffstat (limited to 'arch')
40 files changed, 406 insertions, 272 deletions
diff --git a/arch/alpha/kernel/syscalls/syscall.tbl b/arch/alpha/kernel/syscalls/syscall.tbl index 1db9bbcfb84e..728fe028c02c 100644 --- a/arch/alpha/kernel/syscalls/syscall.tbl +++ b/arch/alpha/kernel/syscalls/syscall.tbl @@ -474,3 +474,4 @@ 542 common fsmount sys_fsmount 543 common fspick sys_fspick 544 common pidfd_open sys_pidfd_open +# 545 reserved for clone3 diff --git a/arch/arm/include/asm/hardware/iop3xx.h b/arch/arm/include/asm/hardware/iop3xx.h index 64714c869f9f..3cb6f22f510b 100644 --- a/arch/arm/include/asm/hardware/iop3xx.h +++ b/arch/arm/include/asm/hardware/iop3xx.h @@ -302,6 +302,8 @@ extern struct platform_device iop3xx_dma_1_channel; extern struct platform_device iop3xx_aau_channel; extern struct platform_device iop3xx_i2c0_device; extern struct platform_device iop3xx_i2c1_device; +extern struct gpiod_lookup_table iop3xx_i2c0_gpio_lookup; +extern struct gpiod_lookup_table iop3xx_i2c1_gpio_lookup; #endif diff --git a/arch/arm/mach-iop32x/em7210.c b/arch/arm/mach-iop32x/em7210.c index 493de4fd8b2e..61a1e593f9ec 100644 --- a/arch/arm/mach-iop32x/em7210.c +++ b/arch/arm/mach-iop32x/em7210.c @@ -20,6 +20,7 @@ #include <linux/platform_device.h> #include <linux/i2c.h> #include <linux/gpio.h> +#include <linux/gpio/machine.h> #include <mach/hardware.h> #include <linux/io.h> #include <linux/irq.h> @@ -207,6 +208,8 @@ static void __init em7210_init_machine(void) { register_iop32x_gpio(); platform_device_register(&em7210_serial_device); + gpiod_add_lookup_table(&iop3xx_i2c0_gpio_lookup); + gpiod_add_lookup_table(&iop3xx_i2c1_gpio_lookup); platform_device_register(&iop3xx_i2c0_device); platform_device_register(&iop3xx_i2c1_device); platform_device_register(&em7210_flash_device); diff --git a/arch/arm/mach-iop32x/glantank.c b/arch/arm/mach-iop32x/glantank.c index 84cdb4587b34..5a45d616d9ac 100644 --- a/arch/arm/mach-iop32x/glantank.c +++ b/arch/arm/mach-iop32x/glantank.c @@ -21,6 +21,7 @@ #include <linux/i2c.h> #include <linux/platform_device.h> #include <linux/io.h> +#include <linux/gpio/machine.h> #include <mach/hardware.h> #include <asm/irq.h> #include <asm/mach/arch.h> @@ -185,6 +186,8 @@ static void glantank_power_off(void) static void __init glantank_init_machine(void) { register_iop32x_gpio(); + gpiod_add_lookup_table(&iop3xx_i2c0_gpio_lookup); + gpiod_add_lookup_table(&iop3xx_i2c1_gpio_lookup); platform_device_register(&iop3xx_i2c0_device); platform_device_register(&iop3xx_i2c1_device); platform_device_register(&glantank_flash_device); diff --git a/arch/arm/mach-iop32x/iq31244.c b/arch/arm/mach-iop32x/iq31244.c index b177e3900616..8755aa87e591 100644 --- a/arch/arm/mach-iop32x/iq31244.c +++ b/arch/arm/mach-iop32x/iq31244.c @@ -22,6 +22,7 @@ #include <linux/mtd/physmap.h> #include <linux/platform_device.h> #include <linux/io.h> +#include <linux/gpio/machine.h> #include <mach/hardware.h> #include <asm/cputype.h> #include <asm/irq.h> @@ -281,6 +282,8 @@ void ep80219_power_off(void) static void __init iq31244_init_machine(void) { register_iop32x_gpio(); + gpiod_add_lookup_table(&iop3xx_i2c0_gpio_lookup); + gpiod_add_lookup_table(&iop3xx_i2c1_gpio_lookup); platform_device_register(&iop3xx_i2c0_device); platform_device_register(&iop3xx_i2c1_device); platform_device_register(&iq31244_flash_device); diff --git a/arch/arm/mach-iop32x/iq80321.c b/arch/arm/mach-iop32x/iq80321.c index 815b9f070007..e12699d1c540 100644 --- a/arch/arm/mach-iop32x/iq80321.c +++ b/arch/arm/mach-iop32x/iq80321.c @@ -19,6 +19,7 @@ #include <linux/mtd/physmap.h> #include <linux/platform_device.h> #include <linux/io.h> +#include <linux/gpio/machine.h> #include <mach/hardware.h> #include <asm/irq.h> #include <asm/mach/arch.h> @@ -168,6 +169,8 @@ static struct platform_device iq80321_serial_device = { static void __init iq80321_init_machine(void) { register_iop32x_gpio(); + gpiod_add_lookup_table(&iop3xx_i2c0_gpio_lookup); + gpiod_add_lookup_table(&iop3xx_i2c1_gpio_lookup); platform_device_register(&iop3xx_i2c0_device); platform_device_register(&iop3xx_i2c1_device); platform_device_register(&iq80321_flash_device); diff --git a/arch/arm/mach-iop32x/n2100.c b/arch/arm/mach-iop32x/n2100.c index 1948180594f4..26d76b377e79 100644 --- a/arch/arm/mach-iop32x/n2100.c +++ b/arch/arm/mach-iop32x/n2100.c @@ -27,6 +27,7 @@ #include <linux/reboot.h> #include <linux/io.h> #include <linux/gpio.h> +#include <linux/gpio/machine.h> #include <mach/hardware.h> #include <asm/irq.h> #include <asm/mach/arch.h> @@ -341,6 +342,7 @@ device_initcall(n2100_request_gpios); static void __init n2100_init_machine(void) { register_iop32x_gpio(); + gpiod_add_lookup_table(&iop3xx_i2c0_gpio_lookup); platform_device_register(&iop3xx_i2c0_device); platform_device_register(&n2100_flash_device); platform_device_register(&n2100_serial_device); diff --git a/arch/arm/plat-iop/i2c.c b/arch/arm/plat-iop/i2c.c index 7a79213db3e1..dfbd7c332866 100644 --- a/arch/arm/plat-iop/i2c.c +++ b/arch/arm/plat-iop/i2c.c @@ -16,6 +16,7 @@ #include <linux/tty.h> #include <linux/serial_core.h> #include <linux/io.h> +#include <linux/gpio/machine.h> #include <asm/pgtable.h> #include <asm/page.h> #include <asm/mach/map.h> @@ -34,6 +35,29 @@ #define IRQ_IOP3XX_I2C_1 IRQ_IOP33X_I2C_1 #endif +/* + * Each of the I2C busses have corresponding GPIO lines, and the driver + * need to access these directly to drive the bus low at times. + */ + +struct gpiod_lookup_table iop3xx_i2c0_gpio_lookup = { + .dev_id = "IOP3xx-I2C.0", + .table = { + GPIO_LOOKUP("gpio-iop", 7, "scl", GPIO_ACTIVE_HIGH), + GPIO_LOOKUP("gpio-iop", 6, "sda", GPIO_ACTIVE_HIGH), + { } + }, +}; + +struct gpiod_lookup_table iop3xx_i2c1_gpio_lookup = { + .dev_id = "IOP3xx-I2C.1", + .table = { + GPIO_LOOKUP("gpio-iop", 5, "scl", GPIO_ACTIVE_HIGH), + GPIO_LOOKUP("gpio-iop", 4, "sda", GPIO_ACTIVE_HIGH), + { } + }, +}; + static struct resource iop3xx_i2c0_resources[] = { [0] = { .start = 0xfffff680, diff --git a/arch/arm64/kernel/pci.c b/arch/arm64/kernel/pci.c index 575bd5517d21..570988c7a7ff 100644 --- a/arch/arm64/kernel/pci.c +++ b/arch/arm64/kernel/pci.c @@ -164,6 +164,7 @@ struct pci_bus *pci_acpi_scan_root(struct acpi_pci_root *root) struct acpi_pci_generic_root_info *ri; struct pci_bus *bus, *child; struct acpi_pci_root_ops *root_ops; + struct pci_host_bridge *host; ri = kzalloc(sizeof(*ri), GFP_KERNEL); if (!ri) @@ -189,8 +190,16 @@ struct pci_bus *pci_acpi_scan_root(struct acpi_pci_root *root) if (!bus) return NULL; - pci_bus_size_bridges(bus); - pci_bus_assign_resources(bus); + /* If we must preserve the resource configuration, claim now */ + host = pci_find_host_bridge(bus); + if (host->preserve_config) + pci_bus_claim_resources(bus); + + /* + * Assign whatever was left unassigned. If we didn't claim above, + * this will reassign everything. + */ + pci_assign_unassigned_root_bus_resources(bus); list_for_each_entry(child, &bus->children, node) pcie_bus_configure_settings(child); diff --git a/arch/ia64/kernel/syscalls/syscall.tbl b/arch/ia64/kernel/syscalls/syscall.tbl index ecc44926737b..36d5faf4c86c 100644 --- a/arch/ia64/kernel/syscalls/syscall.tbl +++ b/arch/ia64/kernel/syscalls/syscall.tbl @@ -355,3 +355,4 @@ 432 common fsmount sys_fsmount 433 common fspick sys_fspick 434 common pidfd_open sys_pidfd_open +# 435 reserved for clone3 diff --git a/arch/m68k/kernel/syscalls/syscall.tbl b/arch/m68k/kernel/syscalls/syscall.tbl index 9a3eb2558568..a88a285a0e5f 100644 --- a/arch/m68k/kernel/syscalls/syscall.tbl +++ b/arch/m68k/kernel/syscalls/syscall.tbl @@ -434,3 +434,4 @@ 432 common fsmount sys_fsmount 433 common fspick sys_fspick 434 common pidfd_open sys_pidfd_open +# 435 reserved for clone3 diff --git a/arch/mips/kernel/syscalls/syscall_n32.tbl b/arch/mips/kernel/syscalls/syscall_n32.tbl index 97035e19ad03..c9c879ec9b6d 100644 --- a/arch/mips/kernel/syscalls/syscall_n32.tbl +++ b/arch/mips/kernel/syscalls/syscall_n32.tbl @@ -373,3 +373,4 @@ 432 n32 fsmount sys_fsmount 433 n32 fspick sys_fspick 434 n32 pidfd_open sys_pidfd_open +# 435 reserved for clone3 diff --git a/arch/mips/kernel/syscalls/syscall_n64.tbl b/arch/mips/kernel/syscalls/syscall_n64.tbl index d7292722d3b0..bbce9159caa1 100644 --- a/arch/mips/kernel/syscalls/syscall_n64.tbl +++ b/arch/mips/kernel/syscalls/syscall_n64.tbl @@ -349,3 +349,4 @@ 432 n64 fsmount sys_fsmount 433 n64 fspick sys_fspick 434 n64 pidfd_open sys_pidfd_open +# 435 reserved for clone3 diff --git a/arch/mips/kernel/syscalls/syscall_o32.tbl b/arch/mips/kernel/syscalls/syscall_o32.tbl index dba084c92f14..9653591428ec 100644 --- a/arch/mips/kernel/syscalls/syscall_o32.tbl +++ b/arch/mips/kernel/syscalls/syscall_o32.tbl @@ -422,3 +422,4 @@ 432 o32 fsmount sys_fsmount 433 o32 fspick sys_fspick 434 o32 pidfd_open sys_pidfd_open +# 435 reserved for clone3 diff --git a/arch/parisc/kernel/syscalls/syscall.tbl b/arch/parisc/kernel/syscalls/syscall.tbl index 5022b9e179c2..c7aadfef5386 100644 --- a/arch/parisc/kernel/syscalls/syscall.tbl +++ b/arch/parisc/kernel/syscalls/syscall.tbl @@ -431,3 +431,4 @@ 432 common fsmount sys_fsmount 433 common fspick sys_fspick 434 common pidfd_open sys_pidfd_open +# 435 reserved for clone3 diff --git a/arch/powerpc/kernel/syscalls/syscall.tbl b/arch/powerpc/kernel/syscalls/syscall.tbl index f2c3bda2d39f..3331749aab20 100644 --- a/arch/powerpc/kernel/syscalls/syscall.tbl +++ b/arch/powerpc/kernel/syscalls/syscall.tbl @@ -516,3 +516,4 @@ 432 common fsmount sys_fsmount 433 common fspick sys_fspick 434 common pidfd_open sys_pidfd_open +# 435 reserved for clone3 diff --git a/arch/s390/kernel/syscalls/syscall.tbl b/arch/s390/kernel/syscalls/syscall.tbl index 6ebacfeaf853..a90d3e945445 100644 --- a/arch/s390/kernel/syscalls/syscall.tbl +++ b/arch/s390/kernel/syscalls/syscall.tbl @@ -437,3 +437,4 @@ 432 common fsmount sys_fsmount sys_fsmount 433 common fspick sys_fspick sys_fspick 434 common pidfd_open sys_pidfd_open sys_pidfd_open +# 435 reserved for clone3 diff --git a/arch/sh/kernel/syscalls/syscall.tbl b/arch/sh/kernel/syscalls/syscall.tbl index 834c9c7d79fa..b5ed26c4c005 100644 --- a/arch/sh/kernel/syscalls/syscall.tbl +++ b/arch/sh/kernel/syscalls/syscall.tbl @@ -437,3 +437,4 @@ 432 common fsmount sys_fsmount 433 common fspick sys_fspick 434 common pidfd_open sys_pidfd_open +# 435 reserved for clone3 diff --git a/arch/sparc/kernel/syscalls/syscall.tbl b/arch/sparc/kernel/syscalls/syscall.tbl index c58e71f21129..8c8cc7537fb2 100644 --- a/arch/sparc/kernel/syscalls/syscall.tbl +++ b/arch/sparc/kernel/syscalls/syscall.tbl @@ -480,3 +480,4 @@ 432 common fsmount sys_fsmount 433 common fspick sys_fspick 434 common pidfd_open sys_pidfd_open +# 435 reserved for clone3 diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig index 9e95af666b33..57d3b5d96bd2 100644 --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig @@ -2482,7 +2482,7 @@ menuconfig APM machines with more than one CPU. In order to use APM, you will need supporting software. For location - and more information, read <file:Documentation/power/apm-acpi.txt> + and more information, read <file:Documentation/power/apm-acpi.rst> and the Battery Powered Linux mini-HOWTO, available from <http://www.tldp.org/docs.html#howto>. diff --git a/arch/x86/ia32/sys_ia32.c b/arch/x86/ia32/sys_ia32.c index 64a6c952091e..21790307121e 100644 --- a/arch/x86/ia32/sys_ia32.c +++ b/arch/x86/ia32/sys_ia32.c @@ -239,6 +239,7 @@ COMPAT_SYSCALL_DEFINE5(x86_clone, unsigned long, clone_flags, { struct kernel_clone_args args = { .flags = (clone_flags & ~CSIGNAL), + .pidfd = parent_tidptr, .child_tid = child_tidptr, .parent_tid = parent_tidptr, .exit_signal = (clone_flags & CSIGNAL), @@ -246,5 +247,8 @@ COMPAT_SYSCALL_DEFINE5(x86_clone, unsigned long, clone_flags, .tls = tls_val, }; + if (!legacy_clone_args_valid(&args)) + return -EINVAL; + return _do_fork(&args); } diff --git a/arch/xtensa/boot/dts/virt.dts b/arch/xtensa/boot/dts/virt.dts new file mode 100644 index 000000000000..6aecbc0f3549 --- /dev/null +++ b/arch/xtensa/boot/dts/virt.dts @@ -0,0 +1,72 @@ +// SPDX-License-Identifier: GPL-2.0 +/dts-v1/; + +/ { + compatible = "cdns,xtensa-iss"; + #address-cells = <1>; + #size-cells = <1>; + interrupt-parent = <&pic>; + + chosen { + bootargs = "console=ttyS0,115200n8 debug"; + }; + + memory@0 { + device_type = "memory"; + reg = <0x00000000 0x80000000>; + }; + + cpus { + #address-cells = <1>; + #size-cells = <0>; + cpu@0 { + compatible = "cdns,xtensa-cpu"; + reg = <0>; + clocks = <&osc>; + }; + }; + + clocks { + osc: osc { + #clock-cells = <0>; + compatible = "fixed-clock"; + clock-frequency = <40000000>; + }; + }; + + pic: pic { + compatible = "cdns,xtensa-pic"; + /* one cell: internal irq number, + * two cells: second cell == 0: internal irq number + * second cell == 1: external irq number + */ + #address-cells = <0>; + #interrupt-cells = <2>; + interrupt-controller; + }; + + pci { + compatible = "pci-host-ecam-generic"; + device_type = "pci"; + #address-cells = <3>; + #size-cells = <2>; + #interrupt-cells = <0x1>; + + bus-range = <0x0 0x3f>; + reg = <0xc0000000 0x04000000>; + + // BUS_ADDRESS(3) CPU_PHYSICAL(1) SIZE(2) + ranges = <0x01000000 0x0 0xc4000000 0xc4000000 0x0 0x04000000>, + <0x02000000 0x0 0xc8000000 0xc8000000 0x0 0x18000000>; + + // PCI_DEVICE(3) INT#(1) CONTROLLER(PHANDLE) CONTROLLER_DATA(2) + interrupt-map = < + 0x0000 0x0 0x0 0x1 &pic 0x0 0x1 + 0x0800 0x0 0x0 0x1 &pic 0x1 0x1 + 0x1000 0x0 0x0 0x1 &pic 0x2 0x1 + 0x1800 0x0 0x0 0x1 &pic 0x3 0x1 + >; + + interrupt-map-mask = <0x1800 0x0 0x0 0x7>; + }; +}; diff --git a/arch/xtensa/configs/virt_defconfig b/arch/xtensa/configs/virt_defconfig new file mode 100644 index 000000000000..bfc45a138e72 --- /dev/null +++ b/arch/xtensa/configs/virt_defconfig @@ -0,0 +1,113 @@ +CONFIG_SYSVIPC=y +CONFIG_POSIX_MQUEUE=y +CONFIG_NO_HZ_IDLE=y +CONFIG_HIGH_RES_TIMERS=y +CONFIG_PREEMPT=y +CONFIG_IRQ_TIME_ACCOUNTING=y +CONFIG_BSD_PROCESS_ACCT=y +CONFIG_MEMCG=y +CONFIG_CGROUP_FREEZER=y +CONFIG_CGROUP_DEVICE=y +CONFIG_CGROUP_CPUACCT=y +CONFIG_CGROUP_DEBUG=y +CONFIG_NAMESPACES=y +CONFIG_SCHED_AUTOGROUP=y +CONFIG_RELAY=y +CONFIG_BLK_DEV_INITRD=y +CONFIG_EXPERT=y +CONFIG_SYSCTL_SYSCALL=y +CONFIG_KALLSYMS_ALL=y +CONFIG_PERF_EVENTS=y +CONFIG_XTENSA_VARIANT_DC233C=y +CONFIG_XTENSA_UNALIGNED_USER=y +CONFIG_VECTORS_OFFSET=0x00002000 +CONFIG_XTENSA_KSEG_512M=y +CONFIG_HIGHMEM=y +CONFIG_CMDLINE_BOOL=y +CONFIG_CMDLINE="console=ttyS0,115200n8 ip=dhcp root=/dev/nfs rw debug memmap=0x80000000@0" +CONFIG_USE_OF=y +CONFIG_BUILTIN_DTB_SOURCE="virt" +# CONFIG_PARSE_BOOTPARAM is not set +CONFIG_JUMP_LABEL=y +CONFIG_MODULES=y +CONFIG_MODULE_UNLOAD=y +# CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS is not set +# CONFIG_COMPACTION is not set +CONFIG_NET=y +CONFIG_PACKET=y +CONFIG_UNIX=y +CONFIG_INET=y +CONFIG_IP_MULTICAST=y +CONFIG_IP_PNP=y +CONFIG_IP_PNP_DHCP=y +CONFIG_IP_PNP_BOOTP=y +CONFIG_IP_PNP_RARP=y +# CONFIG_IPV6 is not set +CONFIG_NETFILTER=y +# CONFIG_WIRELESS is not set +CONFIG_PCI=y +CONFIG_PCI_HOST_GENERIC=y +CONFIG_UEVENT_HELPER=y +CONFIG_DEVTMPFS=y +CONFIG_DEVTMPFS_MOUNT=y +# CONFIG_STANDALONE is not set +CONFIG_BLK_DEV_LOOP=y +CONFIG_BLK_DEV_RAM=y +CONFIG_VIRTIO_BLK=y +CONFIG_SCSI=y +CONFIG_BLK_DEV_SD=y +CONFIG_NETDEVICES=y +CONFIG_VIRTIO_NET=y +# CONFIG_ETHERNET is not set +# CONFIG_WLAN is not set +CONFIG_INPUT_MOUSEDEV=y +CONFIG_INPUT_EVDEV=y +# CONFIG_INPUT_KEYBOARD is not set +# CONFIG_LEGACY_PTYS is not set +CONFIG_HW_RANDOM=y +CONFIG_HW_RANDOM_VIRTIO=y +# CONFIG_HWMON is not set +CONFIG_DRM=y +CONFIG_DRM_VGEM=y +CONFIG_DRM_VIRTIO_GPU=y +CONFIG_FB_MODE_HELPERS=y +# CONFIG_VGA_CONSOLE is not set +CONFIG_FRAMEBUFFER_CONSOLE=y +CONFIG_LOGO=y +# CONFIG_USB_SUPPORT is not set +CONFIG_VIRTIO_PCI=y +CONFIG_VIRTIO_INPUT=y +# CONFIG_IOMMU_SUPPORT is not set +CONFIG_EXT3_FS=y +CONFIG_FANOTIFY=y +CONFIG_VFAT_FS=y +CONFIG_PROC_KCORE=y +CONFIG_TMPFS=y +CONFIG_TMPFS_POSIX_ACL=y +CONFIG_NFS_FS=y +CONFIG_NFS_V4=y +CONFIG_NFS_SWAP=y +CONFIG_ROOT_NFS=y +CONFIG_SUNRPC_DEBUG=y +CONFIG_NLS_CODEPAGE_437=y +CONFIG_NLS_ISO8859_1=y +CONFIG_CRYPTO_ECHAINIV=y +CONFIG_CRYPTO_DEFLATE=y +CONFIG_CRYPTO_LZO=y +CONFIG_CRYPTO_ANSI_CPRNG=y +CONFIG_CRYPTO_DEV_VIRTIO=y +CONFIG_FONTS=y +CONFIG_PRINTK_TIME=y +CONFIG_DYNAMIC_DEBUG=y +CONFIG_DEBUG_INFO=y +CONFIG_MAGIC_SYSRQ=y +# CONFIG_SCHED_DEBUG is not set +CONFIG_SCHEDSTATS=y +CONFIG_DEBUG_RT_MUTEXES=y +CONFIG_DEBUG_SPINLOCK=y +CONFIG_DEBUG_MUTEXES=y +CONFIG_DEBUG_ATOMIC_SLEEP=y +CONFIG_STACKTRACE=y +CONFIG_RCU_TRACE=y +# CONFIG_FTRACE is not set +# CONFIG_S32C1I_SELFTEST is not set diff --git a/arch/xtensa/include/asm/asmmacro.h b/arch/xtensa/include/asm/asmmacro.h index 8308a9c3abb2..71a7e846bc1f 100644 --- a/arch/xtensa/include/asm/asmmacro.h +++ b/arch/xtensa/include/asm/asmmacro.h @@ -191,4 +191,50 @@ #endif .endm +#define XTENSA_STACK_ALIGNMENT 16 + +#if defined(__XTENSA_WINDOWED_ABI__) +#define XTENSA_FRAME_SIZE_RESERVE 16 +#define XTENSA_SPILL_STACK_RESERVE 32 + +#define abi_entry(frame_size) \ + entry sp, (XTENSA_FRAME_SIZE_RESERVE + \ + (((frame_size) + XTENSA_STACK_ALIGNMENT - 1) & \ + -XTENSA_STACK_ALIGNMENT)) +#define abi_entry_default abi_entry(0) + +#define abi_ret(frame_size) retw +#define abi_ret_default retw + +#elif defined(__XTENSA_CALL0_ABI__) + +#define XTENSA_SPILL_STACK_RESERVE 0 + +#define abi_entry(frame_size) __abi_entry (frame_size) + + .macro __abi_entry frame_size + .ifgt \frame_size + addi sp, sp, -(((\frame_size) + XTENSA_STACK_ALIGNMENT - 1) & \ + -XTENSA_STACK_ALIGNMENT) + .endif + .endm + +#define abi_entry_default + +#define abi_ret(frame_size) __abi_ret (frame_size) + + .macro __abi_ret frame_size + .ifgt \frame_size + addi sp, sp, (((\frame_size) + XTENSA_STACK_ALIGNMENT - 1) & \ + -XTENSA_STACK_ALIGNMENT) + .endif + ret + .endm + +#define abi_ret_default ret + +#else +#error Unsupported Xtensa ABI +#endif + #endif /* _XTENSA_ASMMACRO_H */ diff --git a/arch/xtensa/include/asm/platform.h b/arch/xtensa/include/asm/platform.h index 560483356a06..913826dfa838 100644 --- a/arch/xtensa/include/asm/platform.h +++ b/arch/xtensa/include/asm/platform.h @@ -55,16 +55,6 @@ extern void platform_idle (void); extern void platform_heartbeat (void); /* - * platform_pcibios_init is called to allow the platform to setup the pci bus. - */ -extern void platform_pcibios_init (void); - -/* - * platform_pcibios_fixup allows to modify the PCI configuration. - */ -extern int platform_pcibios_fixup (void); - -/* * platform_calibrate_ccount calibrates cpu clock freq (CONFIG_XTENSA_CALIBRATE) */ extern void platform_calibrate_ccount (void); diff --git a/arch/xtensa/include/asm/types.h b/arch/xtensa/include/asm/types.h deleted file mode 100644 index 2b410b8c7f79..000000000000 --- a/arch/xtensa/include/asm/types.h +++ /dev/null @@ -1,23 +0,0 @@ -/* - * include/asm-xtensa/types.h - * - * This file is subject to the terms and conditions of the GNU General Public - * License. See the file "COPYING" in the main directory of this archive - * for more details. - * - * Copyright (C) 2001 - 2005 Tensilica Inc. - */ -#ifndef _XTENSA_TYPES_H -#define _XTENSA_TYPES_H - -#include <uapi/asm/types.h> - -#ifndef __ASSEMBLY__ -/* - * These aren't exported outside the kernel to avoid name space clashes - */ - -#define BITS_PER_LONG 32 - -#endif -#endif /* _XTENSA_TYPES_H */ diff --git a/arch/xtensa/kernel/coprocessor.S b/arch/xtensa/kernel/coprocessor.S index 92bf24a9da92..60c220020054 100644 --- a/arch/xtensa/kernel/coprocessor.S +++ b/arch/xtensa/kernel/coprocessor.S @@ -121,7 +121,9 @@ ENTRY(coprocessor_flush) - entry a1, 32 + /* reserve 4 bytes on stack to save a0 */ + abi_entry(4) + s32i a0, a1, 0 movi a0, .Lsave_cp_regs_jump_table addx8 a3, a3, a0 @@ -131,7 +133,8 @@ ENTRY(coprocessor_flush) beqz a3, 1f callx0 a3 1: l32i a0, a1, 0 - retw + + abi_ret(4) ENDPROC(coprocessor_flush) diff --git a/arch/xtensa/kernel/entry.S b/arch/xtensa/kernel/entry.S index e54af8b7e0f8..183fa8e0bb5b 100644 --- a/arch/xtensa/kernel/entry.S +++ b/arch/xtensa/kernel/entry.S @@ -1842,7 +1842,8 @@ ENDPROC(fast_store_prohibited) ENTRY(system_call) - entry a1, 32 + /* reserve 4 bytes on stack for function parameter */ + abi_entry(4) /* regs->syscall = regs->areg[2] */ @@ -1892,7 +1893,7 @@ ENTRY(system_call) s32i a6, a2, PT_AREG2 bnez a3, 1f - retw + abi_ret(4) 1: l32i a4, a1, 4 @@ -1901,7 +1902,7 @@ ENTRY(system_call) mov a6, a2 call4 do_syscall_trace_leave s32i a3, a2, PT_SYSCALL - retw + abi_ret(4) ENDPROC(system_call) @@ -1952,7 +1953,7 @@ ENDPROC(system_call) ENTRY(_switch_to) - entry a1, 48 + abi_entry(XTENSA_SPILL_STACK_RESERVE) mov a11, a3 # and 'next' (a3) @@ -2013,7 +2014,7 @@ ENTRY(_switch_to) wsr a14, ps rsync - retw + abi_ret(XTENSA_SPILL_STACK_RESERVE) ENDPROC(_switch_to) diff --git a/arch/xtensa/kernel/mcount.S b/arch/xtensa/kernel/mcount.S index 0eeda2e4a25e..5e4619f52858 100644 --- a/arch/xtensa/kernel/mcount.S +++ b/arch/xtensa/kernel/mcount.S @@ -11,6 +11,7 @@ */ #include <linux/linkage.h> +#include <asm/asmmacro.h> #include <asm/ftrace.h> /* @@ -21,13 +22,13 @@ ENTRY(_mcount) - entry a1, 16 + abi_entry_default movi a4, ftrace_trace_function l32i a4, a4, 0 movi a3, ftrace_stub bne a3, a4, 1f - retw + abi_ret_default 1: xor a7, a2, a1 movi a3, 0x3fffffff @@ -40,11 +41,11 @@ ENTRY(_mcount) addi a6, a6, -MCOUNT_INSN_SIZE callx4 a4 - retw + abi_ret_default ENDPROC(_mcount) ENTRY(ftrace_stub) - entry a1, 16 - retw + abi_entry_default + abi_ret_default ENDPROC(ftrace_stub) diff --git a/arch/xtensa/kernel/pci.c b/arch/xtensa/kernel/pci.c index 8b823f94e568..3f32e275997a 100644 --- a/arch/xtensa/kernel/pci.c +++ b/arch/xtensa/kernel/pci.c @@ -24,23 +24,6 @@ #include <asm/pci-bridge.h> #include <asm/platform.h> -/* PCI Controller */ - - -/* - * pcibios_alloc_controller - * pcibios_enable_device - * pcibios_fixups - * pcibios_align_resource - * pcibios_fixup_bus - * pci_bus_add_device - */ - -static struct pci_controller *pci_ctrl_head; -static struct pci_controller **pci_ctrl_tail = &pci_ctrl_head; - -static int pci_bus_count; - /* * We need to avoid collisions with `mirrored' VGA ports * and other strange ISA hardware, so we always want the @@ -75,81 +58,6 @@ pcibios_align_resource(void *data, const struct resource *res, return start; } -static void __init pci_controller_apertures(struct pci_controller *pci_ctrl, - struct list_head *resources) -{ - struct resource *res; - unsigned long io_offset; - int i; - - io_offset = (unsigned long)pci_ctrl->io_space.base; - res = &pci_ctrl->io_resource; - if (!res->flags) { - if (io_offset) - pr_err("I/O resource not set for host bridge %d\n", - pci_ctrl->index); - res->start = 0; - res->end = IO_SPACE_LIMIT; - res->flags = IORESOURCE_IO; - } - res->start += io_offset; - res->end += io_offset; - pci_add_resource_offset(resources, res, io_offset); - - for (i = 0; i < 3; i++) { - res = &pci_ctrl->mem_resources[i]; - if (!res->flags) { - if (i > 0) - continue; - pr_err("Memory resource not set for host bridge %d\n", - pci_ctrl->index); - res->start = 0; - res->end = ~0U; - res->flags = IORESOURCE_MEM; - } - pci_add_resource(resources, res); - } -} - -static int __init pcibios_init(void) -{ - struct pci_controller *pci_ctrl; - struct list_head resources; - struct pci_bus *bus; - int next_busno = 0, ret; - - pr_info("PCI: Probing PCI hardware\n"); - - /* Scan all of the recorded PCI controllers. */ - for (pci_ctrl = pci_ctrl_head; pci_ctrl; pci_ctrl = pci_ctrl->next) { - pci_ctrl->last_busno = 0xff; - INIT_LIST_HEAD(&resources); - pci_controller_apertures(pci_ctrl, &resources); - bus = pci_scan_root_bus(NULL, pci_ctrl->first_busno, - pci_ctrl->ops, pci_ctrl, &resources); - if (!bus) - continue; - - pci_ctrl->bus = bus; - pci_ctrl->last_busno = bus->busn_res.end; - if (next_busno <= pci_ctrl->last_busno) - next_busno = pci_ctrl->last_busno+1; - } - pci_bus_count = next_busno; - ret = platform_pcibios_fixup(); - if (ret) - return ret; - - for (pci_ctrl = pci_ctrl_head; pci_ctrl; pci_ctrl = pci_ctrl->next) { - if (pci_ctrl->bus) - pci_bus_add_devices(pci_ctrl->bus); - } - - return 0; -} - -subsys_initcall(pcibios_init); - void pcibios_fixup_bus(struct pci_bus *bus) { if (bus->parent) { @@ -158,38 +66,6 @@ void pcibios_fixup_bus(struct pci_bus *bus) } } -void pcibios_set_master(struct pci_dev *dev) -{ - /* No special bus mastering setup handling */ -} - -int pcibios_enable_device(struct pci_dev *dev, int mask) -{ - u16 cmd, old_cmd; - int idx; - struct resource *r; - - pci_read_config_word(dev, PCI_COMMAND, &cmd); - old_cmd = cmd; - for (idx=0; idx<6; idx++) { - r = &dev->resource[idx]; - if (!r->start && r->end) { - pci_err(dev, "can't enable device: resource collisions\n"); - return -EINVAL; - } - if (r->flags & IORESOURCE_IO) - cmd |= PCI_COMMAND_IO; - if (r->flags & IORESOURCE_MEM) - cmd |= PCI_COMMAND_MEMORY; - } - if (cmd != old_cmd) { - pci_info(dev, "enabling device (%04x -> %04x)\n", old_cmd, cmd); - pci_write_config_word(dev, PCI_COMMAND, cmd); - } - - return 0; -} - /* * Platform support for /proc/bus/pci/X/Y mmap()s. * -- paulus. diff --git a/arch/xtensa/kernel/platform.c b/arch/xtensa/kernel/platform.c index 1cf008284dd2..a95ba05b0abe 100644 --- a/arch/xtensa/kernel/platform.c +++ b/arch/xtensa/kernel/platform.c @@ -34,8 +34,6 @@ _F(void, halt, (void), { while(1); }); _F(void, power_off, (void), { while(1); }); _F(void, idle, (void), { __asm__ __volatile__ ("waiti 0" ::: "memory"); }); _F(void, heartbeat, (void), { }); -_F(int, pcibios_fixup, (void), { return 0; }); -_F(void, pcibios_init, (void), { }); #ifdef CONFIG_XTENSA_CALIBRATE_CCOUNT _F(void, calibrate_ccount, (void), diff --git a/arch/xtensa/kernel/setup.c b/arch/xtensa/kernel/setup.c index 176cb46bcf12..5cb8a62e091c 100644 --- a/arch/xtensa/kernel/setup.c +++ b/arch/xtensa/kernel/setup.c @@ -405,10 +405,6 @@ void __init setup_arch(char **cmdline_p) conswitchp = &dummy_con; # endif #endif - -#ifdef CONFIG_PCI - platform_pcibios_init(); -#endif } static DEFINE_PER_CPU(struct cpu, cpu_data); diff --git a/arch/xtensa/lib/checksum.S b/arch/xtensa/lib/checksum.S index c6e73b12e519..4cb9ca58d9ad 100644 --- a/arch/xtensa/lib/checksum.S +++ b/arch/xtensa/lib/checksum.S @@ -43,7 +43,7 @@ ENTRY(csum_partial) * Experiments with Ethernet and SLIP connections show that buf * is aligned on either a 2-byte or 4-byte boundary. */ - entry sp, 32 + abi_entry_default extui a5, a2, 0, 2 bnez a5, 8f /* branch if 2-byte aligned */ /* Fall-through on common case, 4-byte alignment */ @@ -107,7 +107,7 @@ ENTRY(csum_partial) ONES_ADD(a4, a6) 7: mov a2, a4 - retw + abi_ret_default /* uncommon case, buf is 2-byte aligned */ 8: @@ -195,7 +195,7 @@ unsigned int csum_partial_copy_generic (const char *src, char *dst, int len, ENTRY(csum_partial_copy_generic) - entry sp, 32 + abi_entry_default mov a12, a3 mov a11, a4 or a10, a2, a3 @@ -316,7 +316,7 @@ EX(11f) s8i a9, a3, 0 ONES_ADD(a5, a9) 8: mov a2, a5 - retw + abi_ret_default 5: /* Control branch to here when either src or dst is odd. We @@ -383,12 +383,12 @@ ENDPROC(csum_partial_copy_generic) blt a12, a11, .Leloop #endif 2: - retw + abi_ret_default 11: movi a2, -EFAULT s32i a2, a7, 0 /* dst_err_ptr */ movi a2, 0 - retw + abi_ret_default .previous diff --git a/arch/xtensa/lib/memcopy.S b/arch/xtensa/lib/memcopy.S index efecfd7ed8cc..582d817979ed 100644 --- a/arch/xtensa/lib/memcopy.S +++ b/arch/xtensa/lib/memcopy.S @@ -79,7 +79,7 @@ bne a3, a7, .Lnextbyte # continue loop if $a3:src != $a7:src_end #endif /* !XCHAL_HAVE_LOOPS */ .Lbytecopydone: - retw + abi_ret_default /* * Destination is unaligned @@ -112,7 +112,7 @@ ENTRY(__memcpy) WEAK(memcpy) - entry sp, 16 # minimal stack frame + abi_entry_default # a2/ dst, a3/ src, a4/ len mov a5, a2 # copy dst so that a2 is return value .Lcommon: @@ -161,7 +161,7 @@ WEAK(memcpy) bbsi.l a4, 2, .L3 bbsi.l a4, 1, .L4 bbsi.l a4, 0, .L5 - retw + abi_ret_default .L3: # copy 4 bytes l32i a6, a3, 0 @@ -170,7 +170,7 @@ WEAK(memcpy) addi a5, a5, 4 bbsi.l a4, 1, .L4 bbsi.l a4, 0, .L5 - retw + abi_ret_default .L4: # copy 2 bytes l16ui a6, a3, 0 @@ -178,12 +178,12 @@ WEAK(memcpy) s16i a6, a5, 0 addi a5, a5, 2 bbsi.l a4, 0, .L5 - retw + abi_ret_default .L5: # copy 1 byte l8ui a6, a3, 0 s8i a6, a5, 0 - retw + abi_ret_default /* * Destination is aligned, Source is unaligned @@ -255,7 +255,7 @@ WEAK(memcpy) #endif bbsi.l a4, 1, .L14 bbsi.l a4, 0, .L15 -.Ldone: retw +.Ldone: abi_ret_default .L14: # copy 2 bytes l8ui a6, a3, 0 @@ -265,12 +265,12 @@ WEAK(memcpy) s8i a7, a5, 1 addi a5, a5, 2 bbsi.l a4, 0, .L15 - retw + abi_ret_default .L15: # copy 1 byte l8ui a6, a3, 0 s8i a6, a5, 0 - retw + abi_ret_default ENDPROC(__memcpy) @@ -280,7 +280,7 @@ ENDPROC(__memcpy) ENTRY(bcopy) - entry sp, 16 # minimal stack frame + abi_entry_default # a2=src, a3=dst, a4=len mov a5, a3 mov a3, a2 @@ -346,7 +346,7 @@ ENDPROC(bcopy) # $a3:src != $a7:src_start #endif /* !XCHAL_HAVE_LOOPS */ .Lbackbytecopydone: - retw + abi_ret_default /* * Destination is unaligned @@ -380,7 +380,7 @@ ENDPROC(bcopy) ENTRY(__memmove) WEAK(memmove) - entry sp, 16 # minimal stack frame + abi_entry_default # a2/ dst, a3/ src, a4/ len mov a5, a2 # copy dst so that a2 is return value .Lmovecommon: @@ -435,7 +435,7 @@ WEAK(memmove) bbsi.l a4, 2, .Lback3 bbsi.l a4, 1, .Lback4 bbsi.l a4, 0, .Lback5 - retw + abi_ret_default .Lback3: # copy 4 bytes addi a3, a3, -4 @@ -444,7 +444,7 @@ WEAK(memmove) s32i a6, a5, 0 bbsi.l a4, 1, .Lback4 bbsi.l a4, 0, .Lback5 - retw + abi_ret_default .Lback4: # copy 2 bytes addi a3, a3, -2 @@ -452,14 +452,14 @@ WEAK(memmove) addi a5, a5, -2 s16i a6, a5, 0 bbsi.l a4, 0, .Lback5 - retw + abi_ret_default .Lback5: # copy 1 byte addi a3, a3, -1 l8ui a6, a3, 0 addi a5, a5, -1 s8i a6, a5, 0 - retw + abi_ret_default /* * Destination is aligned, Source is unaligned @@ -531,7 +531,7 @@ WEAK(memmove) bbsi.l a4, 1, .Lback14 bbsi.l a4, 0, .Lback15 .Lbackdone: - retw + abi_ret_default .Lback14: # copy 2 bytes addi a3, a3, -2 @@ -541,13 +541,13 @@ WEAK(memmove) s8i a6, a5, 0 s8i a7, a5, 1 bbsi.l a4, 0, .Lback15 - retw + abi_ret_default .Lback15: # copy 1 byte addi a3, a3, -1 addi a5, a5, -1 l8ui a6, a3, 0 s8i a6, a5, 0 - retw + abi_ret_default ENDPROC(__memmove) diff --git a/arch/xtensa/lib/memset.S b/arch/xtensa/lib/memset.S index 8632eacbdc80..59b1524fd601 100644 --- a/arch/xtensa/lib/memset.S +++ b/arch/xtensa/lib/memset.S @@ -34,7 +34,7 @@ ENTRY(__memset) WEAK(memset) - entry sp, 16 # minimal stack frame + abi_entry_default # a2/ dst, a3/ c, a4/ length extui a3, a3, 0, 8 # mask to just 8 bits slli a7, a3, 8 # duplicate character in all bytes of word @@ -48,7 +48,7 @@ WEAK(memset) srli a7, a4, 4 # number of loop iterations with 16B # per iteration bnez a4, .Laligned - retw + abi_ret_default /* * Destination is word-aligned. @@ -95,7 +95,7 @@ EX(10f) s16i a3, a5, 0 EX(10f) s8i a3, a5, 0 .L5: .Lret1: - retw + abi_ret_default /* * Destination is unaligned @@ -139,7 +139,7 @@ EX(10f) s8i a3, a5, 0 blt a5, a6, .Lbyteloop #endif /* !XCHAL_HAVE_LOOPS */ .Lbytesetdone: - retw + abi_ret_default ENDPROC(__memset) @@ -150,4 +150,4 @@ ENDPROC(__memset) 10: movi a2, 0 - retw + abi_ret_default diff --git a/arch/xtensa/lib/strncpy_user.S b/arch/xtensa/lib/strncpy_user.S index c4c6c8578d59..4faf46fe3f38 100644 --- a/arch/xtensa/lib/strncpy_user.S +++ b/arch/xtensa/lib/strncpy_user.S @@ -50,7 +50,7 @@ .text ENTRY(__strncpy_user) - entry sp, 16 # minimal stack frame + abi_entry_default # a2/ dst, a3/ src, a4/ len mov a11, a2 # leave dst in return value register beqz a4, .Lret # if len is zero @@ -93,7 +93,7 @@ EX(10f) s8i a9, a11, 0 # store byte 0 bnez a4, .Lsrcaligned # if len is nonzero .Lret: sub a2, a11, a2 # compute strlen - retw + abi_ret_default /* * dst is word-aligned, src is word-aligned @@ -148,14 +148,14 @@ EX(10f) s8i a9, a11, 0 .Lz3: # byte 3 is zero addi a11, a11, 3 # advance dst pointer sub a2, a11, a2 # compute strlen - retw + abi_ret_default .Lz0: # byte 0 is zero #ifdef __XTENSA_EB__ movi a9, 0 #endif /* __XTENSA_EB__ */ EX(10f) s8i a9, a11, 0 sub a2, a11, a2 # compute strlen - retw + abi_ret_default .Lz1: # byte 1 is zero #ifdef __XTENSA_EB__ extui a9, a9, 16, 16 @@ -163,7 +163,7 @@ EX(10f) s8i a9, a11, 0 EX(10f) s16i a9, a11, 0 addi a11, a11, 1 # advance dst pointer sub a2, a11, a2 # compute strlen - retw + abi_ret_default .Lz2: # byte 2 is zero #ifdef __XTENSA_EB__ extui a9, a9, 16, 16 @@ -173,7 +173,7 @@ EX(10f) s16i a9, a11, 0 EX(10f) s8i a9, a11, 2 addi a11, a11, 2 # advance dst pointer sub a2, a11, a2 # compute strlen - retw + abi_ret_default .align 4 # 1 mod 4 alignment for LOOPNEZ .byte 0 # (0 mod 4 alignment for LBEG) @@ -199,7 +199,7 @@ EX(10f) s8i a9, a11, 0 .Lunalignedend: sub a2, a11, a2 # compute strlen - retw + abi_ret_default ENDPROC(__strncpy_user) @@ -214,4 +214,4 @@ ENDPROC(__strncpy_user) 10: 11: movi a2, -EFAULT - retw + abi_ret_default diff --git a/arch/xtensa/lib/strnlen_user.S b/arch/xtensa/lib/strnlen_user.S index 1f2ca2bb2ab3..3d391dca3efb 100644 --- a/arch/xtensa/lib/strnlen_user.S +++ b/arch/xtensa/lib/strnlen_user.S @@ -45,7 +45,7 @@ .text ENTRY(__strnlen_user) - entry sp, 16 # minimal stack frame + abi_entry_default # a2/ s, a3/ len addi a4, a2, -4 # because we overincrement at the end; # we compensate with load offsets of 4 @@ -96,7 +96,7 @@ EX(10f) l32i a9, a4, 4 # load 4 bytes for remaining checks addi a4, a4, 1 # advance string pointer .L101: sub a2, a4, a2 # compute length - retw + abi_ret_default # NOTE that in several places below, we point to the byte just after # the zero byte in order to include the NULL terminator in the count. @@ -106,15 +106,15 @@ EX(10f) l32i a9, a4, 4 # load 4 bytes for remaining checks .Lz0: # byte 0 is zero addi a4, a4, 1 # point just beyond zero byte sub a2, a4, a2 # subtract to get length - retw + abi_ret_default .Lz1: # byte 1 is zero addi a4, a4, 1+1 # point just beyond zero byte sub a2, a4, a2 # subtract to get length - retw + abi_ret_default .Lz2: # byte 2 is zero addi a4, a4, 2+1 # point just beyond zero byte sub a2, a4, a2 # subtract to get length - retw + abi_ret_default .L1mod2: # address is odd EX(10f) l8ui a9, a4, 4 # get byte 0 @@ -130,7 +130,7 @@ EX(10f) l32i a9, a4, 0 # get word with first two bytes of string # byte 3 is zero addi a4, a4, 3+1 # point just beyond zero byte sub a2, a4, a2 # subtract to get length - retw + abi_ret_default ENDPROC(__strnlen_user) @@ -138,4 +138,4 @@ ENDPROC(__strnlen_user) .align 4 10: movi a2, 0 - retw + abi_ret_default diff --git a/arch/xtensa/lib/usercopy.S b/arch/xtensa/lib/usercopy.S index 228607e30bc2..a0aa4047f94a 100644 --- a/arch/xtensa/lib/usercopy.S +++ b/arch/xtensa/lib/usercopy.S @@ -60,7 +60,7 @@ .text ENTRY(__xtensa_copy_user) - entry sp, 16 # minimal stack frame + abi_entry_default # a2/ dst, a3/ src, a4/ len mov a5, a2 # copy dst so that a2 is return value mov a11, a4 # preserve original len for error case @@ -75,7 +75,7 @@ ENTRY(__xtensa_copy_user) __ssa8 a3 # set shift amount from byte offset bnez a4, .Lsrcunaligned movi a2, 0 # return success for len==0 - retw + abi_ret_default /* * Destination is unaligned @@ -127,7 +127,7 @@ EX(10f) s8i a6, a5, 0 #endif /* !XCHAL_HAVE_LOOPS */ .Lbytecopydone: movi a2, 0 # return success for len bytes copied - retw + abi_ret_default /* * Destination and source are word-aligned. @@ -187,7 +187,7 @@ EX(10f) l8ui a6, a3, 0 EX(10f) s8i a6, a5, 0 .L5: movi a2, 0 # return success for len bytes copied - retw + abi_ret_default /* * Destination is aligned, Source is unaligned @@ -264,7 +264,7 @@ EX(10f) l8ui a6, a3, 0 EX(10f) s8i a6, a5, 0 .L15: movi a2, 0 # return success for len bytes copied - retw + abi_ret_default ENDPROC(__xtensa_copy_user) @@ -281,4 +281,4 @@ ENDPROC(__xtensa_copy_user) 10: sub a2, a5, a2 /* a2 <-- bytes copied */ sub a2, a11, a2 /* a2 <-- bytes not copied */ - retw + abi_ret_default diff --git a/arch/xtensa/mm/init.c b/arch/xtensa/mm/init.c index b51746f2b80b..79467c749416 100644 --- a/arch/xtensa/mm/init.c +++ b/arch/xtensa/mm/init.c @@ -45,10 +45,7 @@ void __init bootmem_init(void) * If PHYS_OFFSET is zero reserve page at address 0: * successfull allocations should never return NULL. */ - if (PHYS_OFFSET) - memblock_reserve(0, PHYS_OFFSET); - else - memblock_reserve(0, 1); + memblock_reserve(0, PHYS_OFFSET ? PHYS_OFFSET : 1); early_init_fdt_scan_reserved_mem(); diff --git a/arch/xtensa/mm/misc.S b/arch/xtensa/mm/misc.S index 11a01c3e9cea..6aa036c427c3 100644 --- a/arch/xtensa/mm/misc.S +++ b/arch/xtensa/mm/misc.S @@ -30,7 +30,7 @@ ENTRY(clear_page) - entry a1, 16 + abi_entry_default movi a3, 0 __loopi a2, a7, PAGE_SIZE, 32 @@ -44,7 +44,7 @@ ENTRY(clear_page) s32i a3, a2, 28 __endla a2, a7, 32 - retw + abi_ret_default ENDPROC(clear_page) @@ -57,7 +57,7 @@ ENDPROC(clear_page) ENTRY(copy_page) - entry a1, 16 + abi_entry_default __loopi a2, a4, PAGE_SIZE, 32 @@ -86,7 +86,7 @@ ENTRY(copy_page) __endl a2, a4 - retw + abi_ret_default ENDPROC(copy_page) @@ -116,7 +116,7 @@ ENTRY(__tlbtemp_mapping_start) ENTRY(clear_page_alias) - entry a1, 32 + abi_entry_default /* Skip setting up a temporary DTLB if not aliased low page. */ @@ -144,14 +144,14 @@ ENTRY(clear_page_alias) __endla a2, a7, 32 bnez a6, 1f - retw + abi_ret_default /* We need to invalidate the temporary idtlb entry, if any. */ 1: idtlb a4 dsync - retw + abi_ret_default ENDPROC(clear_page_alias) @@ -164,7 +164,7 @@ ENDPROC(clear_page_alias) ENTRY(copy_page_alias) - entry a1, 32 + abi_entry_default /* Skip setting up a temporary DTLB for destination if not aliased. */ @@ -221,19 +221,19 @@ ENTRY(copy_page_alias) bnez a6, 1f bnez a7, 2f - retw + abi_ret_default 1: addi a2, a2, -PAGE_SIZE idtlb a2 dsync bnez a7, 2f - retw + abi_ret_default 2: addi a3, a3, -PAGE_SIZE+1 idtlb a3 dsync - retw + abi_ret_default ENDPROC(copy_page_alias) @@ -248,7 +248,7 @@ ENDPROC(copy_page_alias) ENTRY(__flush_invalidate_dcache_page_alias) - entry sp, 16 + abi_entry_default movi a7, 0 # required for exception handler addi a6, a3, (PAGE_KERNEL | _PAGE_HW_WRITE) @@ -261,7 +261,7 @@ ENTRY(__flush_invalidate_dcache_page_alias) idtlb a4 dsync - retw + abi_ret_default ENDPROC(__flush_invalidate_dcache_page_alias) @@ -272,7 +272,7 @@ ENDPROC(__flush_invalidate_dcache_page_alias) ENTRY(__invalidate_dcache_page_alias) - entry sp, 16 + abi_entry_default movi a7, 0 # required for exception handler addi a6, a3, (PAGE_KERNEL | _PAGE_HW_WRITE) @@ -285,7 +285,7 @@ ENTRY(__invalidate_dcache_page_alias) idtlb a4 dsync - retw + abi_ret_default ENDPROC(__invalidate_dcache_page_alias) #endif @@ -296,7 +296,7 @@ ENTRY(__tlbtemp_mapping_itlb) ENTRY(__invalidate_icache_page_alias) - entry sp, 16 + abi_entry_default addi a6, a3, (PAGE_KERNEL_EXEC | _PAGE_HW_WRITE) mov a4, a2 @@ -307,7 +307,7 @@ ENTRY(__invalidate_icache_page_alias) iitlb a4 isync - retw + abi_ret_default ENDPROC(__invalidate_icache_page_alias) @@ -325,12 +325,12 @@ ENTRY(__tlbtemp_mapping_end) ENTRY(__invalidate_icache_page) - entry sp, 16 + abi_entry_default ___invalidate_icache_page a2 a3 isync - retw + abi_ret_default ENDPROC(__invalidate_icache_page) @@ -340,12 +340,12 @@ ENDPROC(__invalidate_icache_page) ENTRY(__invalidate_dcache_page) - entry sp, 16 + abi_entry_default ___invalidate_dcache_page a2 a3 dsync - retw + abi_ret_default ENDPROC(__invalidate_dcache_page) @@ -355,12 +355,12 @@ ENDPROC(__invalidate_dcache_page) ENTRY(__flush_invalidate_dcache_page) - entry sp, 16 + abi_entry_default ___flush_invalidate_dcache_page a2 a3 dsync - retw + abi_ret_default ENDPROC(__flush_invalidate_dcache_page) @@ -370,12 +370,12 @@ ENDPROC(__flush_invalidate_dcache_page) ENTRY(__flush_dcache_page) - entry sp, 16 + abi_entry_default ___flush_dcache_page a2 a3 dsync - retw + abi_ret_default ENDPROC(__flush_dcache_page) @@ -385,12 +385,12 @@ ENDPROC(__flush_dcache_page) ENTRY(__invalidate_icache_range) - entry sp, 16 + abi_entry_default ___invalidate_icache_range a2 a3 a4 isync - retw + abi_ret_default ENDPROC(__invalidate_icache_range) @@ -400,12 +400,12 @@ ENDPROC(__invalidate_icache_range) ENTRY(__flush_invalidate_dcache_range) - entry sp, 16 + abi_entry_default ___flush_invalidate_dcache_range a2 a3 a4 dsync - retw + abi_ret_default ENDPROC(__flush_invalidate_dcache_range) @@ -415,12 +415,12 @@ ENDPROC(__flush_invalidate_dcache_range) ENTRY(__flush_dcache_range) - entry sp, 16 + abi_entry_default ___flush_dcache_range a2 a3 a4 dsync - retw + abi_ret_default ENDPROC(__flush_dcache_range) @@ -430,11 +430,11 @@ ENDPROC(__flush_dcache_range) ENTRY(__invalidate_dcache_range) - entry sp, 16 + abi_entry_default ___invalidate_dcache_range a2 a3 a4 - retw + abi_ret_default ENDPROC(__invalidate_dcache_range) @@ -444,12 +444,12 @@ ENDPROC(__invalidate_dcache_range) ENTRY(__invalidate_icache_all) - entry sp, 16 + abi_entry_default ___invalidate_icache_all a2 a3 isync - retw + abi_ret_default ENDPROC(__invalidate_icache_all) @@ -459,12 +459,12 @@ ENDPROC(__invalidate_icache_all) ENTRY(__flush_invalidate_dcache_all) - entry sp, 16 + abi_entry_default ___flush_invalidate_dcache_all a2 a3 dsync - retw + abi_ret_default ENDPROC(__flush_invalidate_dcache_all) @@ -474,11 +474,11 @@ ENDPROC(__flush_invalidate_dcache_all) ENTRY(__invalidate_dcache_all) - entry sp, 16 + abi_entry_default ___invalidate_dcache_all a2 a3 dsync - retw + abi_ret_default ENDPROC(__invalidate_dcache_all) |