diff options
Diffstat (limited to 'arch')
1994 files changed, 57085 insertions, 31290 deletions
diff --git a/arch/Kconfig b/arch/Kconfig index f6b649d88ec8..81869a5e7e17 100644 --- a/arch/Kconfig +++ b/arch/Kconfig @@ -583,6 +583,12 @@ config HAVE_COPY_THREAD_TLS normal C parameter passing, rather than extracting the syscall argument from pt_regs. +config HAVE_STACK_VALIDATION + bool + help + Architecture supports the 'objtool check' host tool command, which + performs compile-time stack metadata validation. + # # ABI hall of shame # diff --git a/arch/alpha/include/asm/checksum.h b/arch/alpha/include/asm/checksum.h index d3854bbf0a9e..f2bbdd2ace51 100644 --- a/arch/alpha/include/asm/checksum.h +++ b/arch/alpha/include/asm/checksum.h @@ -13,14 +13,11 @@ extern __sum16 ip_fast_csum(const void *iph, unsigned int ihl); * computes the checksum of the TCP/UDP pseudo-header * returns a 16-bit checksum, already complemented */ -extern __sum16 csum_tcpudp_magic(__be32 saddr, __be32 daddr, - unsigned short len, - unsigned short proto, - __wsum sum); +__sum16 csum_tcpudp_magic(__be32 saddr, __be32 daddr, + __u32 len, __u8 proto, __wsum sum); __wsum csum_tcpudp_nofold(__be32 saddr, __be32 daddr, - unsigned short len, unsigned short proto, - __wsum sum); + __u32 len, __u8 proto, __wsum sum); /* * computes the checksum of a memory block at buff, length len, @@ -70,6 +67,5 @@ static inline __sum16 csum_fold(__wsum csum) #define _HAVE_ARCH_IPV6_CSUM extern __sum16 csum_ipv6_magic(const struct in6_addr *saddr, const struct in6_addr *daddr, - __u32 len, unsigned short proto, - __wsum sum); + __u32 len, __u8 proto, __wsum sum); #endif diff --git a/arch/alpha/include/asm/gpio.h b/arch/alpha/include/asm/gpio.h deleted file mode 100644 index b3799d88ffcf..000000000000 --- a/arch/alpha/include/asm/gpio.h +++ /dev/null @@ -1,4 +0,0 @@ -#ifndef __LINUX_GPIO_H -#warning Include linux/gpio.h instead of asm/gpio.h -#include <linux/gpio.h> -#endif diff --git a/arch/alpha/include/asm/pci.h b/arch/alpha/include/asm/pci.h index 98f2eeee8f68..a06c24b3a2e1 100644 --- a/arch/alpha/include/asm/pci.h +++ b/arch/alpha/include/asm/pci.h @@ -7,7 +7,6 @@ #include <linux/dma-mapping.h> #include <linux/scatterlist.h> #include <asm/machvec.h> -#include <asm-generic/pci-bridge.h> /* * The following structure is used to manage multiple PCI busses. @@ -66,13 +65,6 @@ extern void pcibios_set_master(struct pci_dev *dev); decisions. */ #define PCI_DMA_BUS_IS_PHYS 0 -#ifdef CONFIG_PCI - -/* implement the pci_ DMA API in terms of the generic device dma_ one */ -#include <asm-generic/pci-dma-compat.h> - -#endif - /* TODO: integrate with include/asm-generic/pci.h ? */ static inline int pci_get_legacy_ide_irq(struct pci_dev *dev, int channel) { diff --git a/arch/alpha/include/asm/serial.h b/arch/alpha/include/asm/serial.h index 22909b83f473..e31557fc06cc 100644 --- a/arch/alpha/include/asm/serial.h +++ b/arch/alpha/include/asm/serial.h @@ -14,11 +14,11 @@ /* Standard COM flags (except for COM4, because of the 8514 problem) */ #ifdef CONFIG_SERIAL_8250_DETECT_IRQ -#define STD_COM_FLAGS (ASYNC_BOOT_AUTOCONF | ASYNC_SKIP_TEST | ASYNC_AUTO_IRQ) -#define STD_COM4_FLAGS (ASYNC_BOOT_AUTOCONF | ASYNC_AUTO_IRQ) +#define STD_COM_FLAGS (UPF_BOOT_AUTOCONF | UPF_SKIP_TEST | UPF_AUTO_IRQ) +#define STD_COM4_FLAGS (UPF_BOOT_AUTOCONF | UPF_AUTO_IRQ) #else -#define STD_COM_FLAGS (ASYNC_BOOT_AUTOCONF | ASYNC_SKIP_TEST) -#define STD_COM4_FLAGS ASYNC_BOOT_AUTOCONF +#define STD_COM_FLAGS (UPF_BOOT_AUTOCONF | UPF_SKIP_TEST) +#define STD_COM4_FLAGS UPF_BOOT_AUTOCONF #endif #define SERIAL_PORT_DFNS \ diff --git a/arch/alpha/include/asm/uaccess.h b/arch/alpha/include/asm/uaccess.h index 9b0d40093c9a..c419b43c461d 100644 --- a/arch/alpha/include/asm/uaccess.h +++ b/arch/alpha/include/asm/uaccess.h @@ -483,7 +483,13 @@ struct exception_table_entry (pc) + (_fixup)->fixup.bits.nextinsn; \ }) -#define ARCH_HAS_SORT_EXTABLE -#define ARCH_HAS_SEARCH_EXTABLE +#define ARCH_HAS_RELATIVE_EXTABLE + +#define swap_ex_entry_fixup(a, b, tmp, delta) \ + do { \ + (a)->fixup.unit = (b)->fixup.unit; \ + (b)->fixup.unit = (tmp).fixup.unit; \ + } while (0) + #endif /* __ALPHA_UACCESS_H */ diff --git a/arch/alpha/include/uapi/asm/socket.h b/arch/alpha/include/uapi/asm/socket.h index c5fb9e6bc3a5..9e46d6e656d9 100644 --- a/arch/alpha/include/uapi/asm/socket.h +++ b/arch/alpha/include/uapi/asm/socket.h @@ -95,4 +95,6 @@ #define SO_ATTACH_REUSEPORT_CBPF 51 #define SO_ATTACH_REUSEPORT_EBPF 52 +#define SO_CNX_ADVICE 53 + #endif /* _UAPI_ASM_SOCKET_H */ diff --git a/arch/alpha/kernel/pci-noop.c b/arch/alpha/kernel/pci-noop.c index 2b1f4a1e9272..8e735b5e56bd 100644 --- a/arch/alpha/kernel/pci-noop.c +++ b/arch/alpha/kernel/pci-noop.c @@ -123,44 +123,6 @@ static void *alpha_noop_alloc_coherent(struct device *dev, size_t size, return ret; } -static void alpha_noop_free_coherent(struct device *dev, size_t size, - void *cpu_addr, dma_addr_t dma_addr, - struct dma_attrs *attrs) -{ - free_pages((unsigned long)cpu_addr, get_order(size)); -} - -static dma_addr_t alpha_noop_map_page(struct device *dev, struct page *page, - unsigned long offset, size_t size, - enum dma_data_direction dir, - struct dma_attrs *attrs) -{ - return page_to_pa(page) + offset; -} - -static int alpha_noop_map_sg(struct device *dev, struct scatterlist *sgl, int nents, - enum dma_data_direction dir, struct dma_attrs *attrs) -{ - int i; - struct scatterlist *sg; - - for_each_sg(sgl, sg, nents, i) { - void *va; - - BUG_ON(!sg_page(sg)); - va = sg_virt(sg); - sg_dma_address(sg) = (dma_addr_t)virt_to_phys(va); - sg_dma_len(sg) = sg->length; - } - - return nents; -} - -static int alpha_noop_mapping_error(struct device *dev, dma_addr_t dma_addr) -{ - return 0; -} - static int alpha_noop_supported(struct device *dev, u64 mask) { return mask < 0x00ffffffUL ? 0 : 1; @@ -168,10 +130,10 @@ static int alpha_noop_supported(struct device *dev, u64 mask) struct dma_map_ops alpha_noop_ops = { .alloc = alpha_noop_alloc_coherent, - .free = alpha_noop_free_coherent, - .map_page = alpha_noop_map_page, - .map_sg = alpha_noop_map_sg, - .mapping_error = alpha_noop_mapping_error, + .free = dma_noop_free_coherent, + .map_page = dma_noop_map_page, + .map_sg = dma_noop_map_sg, + .mapping_error = dma_noop_mapping_error, .dma_supported = alpha_noop_supported, }; diff --git a/arch/alpha/kernel/smp.c b/arch/alpha/kernel/smp.c index 2f24447fef92..46bf263c3153 100644 --- a/arch/alpha/kernel/smp.c +++ b/arch/alpha/kernel/smp.c @@ -168,7 +168,7 @@ smp_callin(void) cpuid, current, current->active_mm)); preempt_disable(); - cpu_startup_entry(CPUHP_ONLINE); + cpu_startup_entry(CPUHP_AP_ONLINE_IDLE); } /* Wait until hwrpb->txrdy is clear for cpu. Return -1 on timeout. */ diff --git a/arch/alpha/lib/checksum.c b/arch/alpha/lib/checksum.c index 199f6efa83fa..377f9e34eb97 100644 --- a/arch/alpha/lib/checksum.c +++ b/arch/alpha/lib/checksum.c @@ -42,9 +42,7 @@ static inline unsigned short from64to16(unsigned long x) * returns a 16-bit checksum, already complemented. */ __sum16 csum_tcpudp_magic(__be32 saddr, __be32 daddr, - unsigned short len, - unsigned short proto, - __wsum sum) + __u32 len, __u8 proto, __wsum sum) { return (__force __sum16)~from64to16( (__force u64)saddr + (__force u64)daddr + @@ -52,9 +50,7 @@ __sum16 csum_tcpudp_magic(__be32 saddr, __be32 daddr, } __wsum csum_tcpudp_nofold(__be32 saddr, __be32 daddr, - unsigned short len, - unsigned short proto, - __wsum sum) + __u32 len, __u8 proto, __wsum sum) { unsigned long result; diff --git a/arch/alpha/mm/Makefile b/arch/alpha/mm/Makefile index c993d3f93cf6..5a9807936411 100644 --- a/arch/alpha/mm/Makefile +++ b/arch/alpha/mm/Makefile @@ -4,6 +4,6 @@ ccflags-y := -Werror -obj-y := init.o fault.o extable.o +obj-y := init.o fault.o obj-$(CONFIG_DISCONTIGMEM) += numa.o diff --git a/arch/alpha/mm/extable.c b/arch/alpha/mm/extable.c deleted file mode 100644 index 813c9b63c0e1..000000000000 --- a/arch/alpha/mm/extable.c +++ /dev/null @@ -1,92 +0,0 @@ -/* - * linux/arch/alpha/mm/extable.c - */ - -#include <linux/module.h> -#include <linux/sort.h> -#include <asm/uaccess.h> - -static inline unsigned long ex_to_addr(const struct exception_table_entry *x) -{ - return (unsigned long)&x->insn + x->insn; -} - -static void swap_ex(void *a, void *b, int size) -{ - struct exception_table_entry *ex_a = a, *ex_b = b; - unsigned long addr_a = ex_to_addr(ex_a), addr_b = ex_to_addr(ex_b); - unsigned int t = ex_a->fixup.unit; - - ex_a->fixup.unit = ex_b->fixup.unit; - ex_b->fixup.unit = t; - ex_a->insn = (int)(addr_b - (unsigned long)&ex_a->insn); - ex_b->insn = (int)(addr_a - (unsigned long)&ex_b->insn); -} - -/* - * The exception table needs to be sorted so that the binary - * search that we use to find entries in it works properly. - * This is used both for the kernel exception table and for - * the exception tables of modules that get loaded. - */ -static int cmp_ex(const void *a, const void *b) -{ - const struct exception_table_entry *x = a, *y = b; - - /* avoid overflow */ - if (ex_to_addr(x) > ex_to_addr(y)) - return 1; - if (ex_to_addr(x) < ex_to_addr(y)) - return -1; - return 0; -} - -void sort_extable(struct exception_table_entry *start, - struct exception_table_entry *finish) -{ - sort(start, finish - start, sizeof(struct exception_table_entry), - cmp_ex, swap_ex); -} - -#ifdef CONFIG_MODULES -/* - * Any entry referring to the module init will be at the beginning or - * the end. - */ -void trim_init_extable(struct module *m) -{ - /*trim the beginning*/ - while (m->num_exentries && - within_module_init(ex_to_addr(&m->extable[0]), m)) { - m->extable++; - m->num_exentries--; - } - /*trim the end*/ - while (m->num_exentries && - within_module_init(ex_to_addr(&m->extable[m->num_exentries-1]), - m)) - m->num_exentries--; -} -#endif /* CONFIG_MODULES */ - -const struct exception_table_entry * -search_extable(const struct exception_table_entry *first, - const struct exception_table_entry *last, - unsigned long value) -{ - while (first <= last) { - const struct exception_table_entry *mid; - unsigned long mid_value; - - mid = (last - first) / 2 + first; - mid_value = ex_to_addr(mid); - if (mid_value == value) - return mid; - else if (mid_value < value) - first = mid+1; - else - last = mid-1; - } - - return NULL; -} diff --git a/arch/arc/Kconfig b/arch/arc/Kconfig index 8a188bc1786a..208aae071b37 100644 --- a/arch/arc/Kconfig +++ b/arch/arc/Kconfig @@ -17,6 +17,7 @@ config ARC select GENERIC_FIND_FIRST_BIT # for now, we don't need GENERIC_IRQ_PROBE, CONFIG_GENERIC_IRQ_CHIP select GENERIC_IRQ_SHOW + select GENERIC_PCI_IOMAP select GENERIC_PENDING_IRQ if SMP select GENERIC_SMP_IDLE_THREAD select HAVE_ARCH_KGDB @@ -37,6 +38,9 @@ config ARC select PERF_USE_VMALLOC select HAVE_DEBUG_STACKOVERFLOW +config MIGHT_HAVE_PCI + bool + config TRACE_IRQFLAGS_SUPPORT def_bool y @@ -387,7 +391,7 @@ config ARC_HAS_LLSC config ARC_STAR_9000923308 bool "Workaround for llock/scond livelock" - default y + default n depends on ISA_ARCV2 && SMP && ARC_HAS_LLSC config ARC_HAS_SWAPE @@ -458,7 +462,6 @@ config ARC_HAS_PAE40 bool "Support for the 40-bit Physical Address Extension" default n depends on ISA_ARCV2 - select HIGHMEM help Enable access to physical memory beyond 4G, only supported on ARC cores with 40 bit Physical Addressing support @@ -469,6 +472,9 @@ config ARCH_PHYS_ADDR_T_64BIT config ARCH_DMA_ADDR_T_64BIT bool +config ARC_PLAT_NEEDS_PHYS_TO_DMA + bool + config ARC_CURR_IN_REG bool "Dedicate Register r25 for current_task pointer" default y @@ -569,6 +575,28 @@ config FORCE_MAX_ZONEORDER source "net/Kconfig" source "drivers/Kconfig" + +menu "Bus Support" + +config PCI + bool "PCI support" if MIGHT_HAVE_PCI + help + PCI is the name of a bus system, i.e., the way the CPU talks to + the other stuff inside your box. Find out if your board/platform + has PCI. + + Note: PCIe support for Synopsys Device will be available only + when HAPS DX is configured with PCIe RC bitmap. If you have PCI, + say Y, otherwise N. + +config PCI_SYSCALL + def_bool PCI + +source "drivers/pci/Kconfig" +source "drivers/pci/pcie/Kconfig" + +endmenu + source "fs/Kconfig" source "arch/arc/Kconfig.debug" source "security/Kconfig" diff --git a/arch/arc/Makefile b/arch/arc/Makefile index c8230f3395f2..def69e347b2d 100644 --- a/arch/arc/Makefile +++ b/arch/arc/Makefile @@ -9,7 +9,11 @@ UTS_MACHINE := arc ifeq ($(CROSS_COMPILE),) +ifndef CONFIG_CPU_BIG_ENDIAN CROSS_COMPILE := arc-linux- +else +CROSS_COMPILE := arceb-linux- +endif endif KBUILD_DEFCONFIG := nsim_700_defconfig @@ -18,6 +22,20 @@ cflags-y += -fno-common -pipe -fno-builtin -D__linux__ cflags-$(CONFIG_ISA_ARCOMPACT) += -mA7 cflags-$(CONFIG_ISA_ARCV2) += -mcpu=archs +is_700 = $(shell $(CC) -dM -E - < /dev/null | grep -q "ARC700" && echo 1 || echo 0) + +ifdef CONFIG_ISA_ARCOMPACT +ifeq ($(is_700), 0) + $(error Toolchain not configured for ARCompact builds) +endif +endif + +ifdef CONFIG_ISA_ARCV2 +ifeq ($(is_700), 1) + $(error Toolchain not configured for ARCv2 builds) +endif +endif + ifdef CONFIG_ARC_CURR_IN_REG # For a global register defintion, make sure it gets passed to every file # We had a customer reported bug where some code built in kernel was NOT using @@ -58,7 +76,9 @@ endif ifndef CONFIG_CC_OPTIMIZE_FOR_SIZE # Generic build system uses -O2, we want -O3 # Note: No need to add to cflags-y as that happens anyways -ARCH_CFLAGS += -O3 +# +# Disable the false maybe-uninitialized warings gcc spits out at -O3 +ARCH_CFLAGS += -O3 $(call cc-disable-warning,maybe-uninitialized,) endif # small data is default for elf32 tool-chain. If not usable, disable it diff --git a/arch/arc/boot/dts/axs10x_mb.dtsi b/arch/arc/boot/dts/axs10x_mb.dtsi index 44a578c10732..ab5d5701e11d 100644 --- a/arch/arc/boot/dts/axs10x_mb.dtsi +++ b/arch/arc/boot/dts/axs10x_mb.dtsi @@ -47,6 +47,14 @@ clocks = <&apbclk>; clock-names = "stmmaceth"; max-speed = <100>; + mdio0 { + #address-cells = <1>; + #size-cells = <0>; + compatible = "snps,dwmac-mdio"; + phy1: ethernet-phy@1 { + reg = <1>; + }; + }; }; ehci@0x40000 { diff --git a/arch/arc/boot/dts/nsim_hs.dts b/arch/arc/boot/dts/nsim_hs.dts index fc81879bc1f5..f46633eeb06b 100644 --- a/arch/arc/boot/dts/nsim_hs.dts +++ b/arch/arc/boot/dts/nsim_hs.dts @@ -35,7 +35,8 @@ #address-cells = <1>; #size-cells = <1>; - /* only perip space at end of low mem accessible */ + /* only perip space at end of low mem accessible + bus addr, parent bus addr, size */ ranges = <0x80000000 0x0 0x80000000 0x80000000>; core_intc: core-interrupt-controller { diff --git a/arch/arc/boot/dts/nsimosci.dts b/arch/arc/boot/dts/nsimosci.dts index 1c169dc74ad1..d94b4ce516ad 100644 --- a/arch/arc/boot/dts/nsimosci.dts +++ b/arch/arc/boot/dts/nsimosci.dts @@ -65,10 +65,9 @@ }; eth0: ethernet@f0003000 { - compatible = "snps,oscilan"; + compatible = "ezchip,nps-mgt-enet"; reg = <0xf0003000 0x44>; - interrupts = <7>, <8>; - interrupt-names = "rx", "tx"; + interrupts = <7>; }; }; }; diff --git a/arch/arc/boot/dts/nsimosci_hs.dts b/arch/arc/boot/dts/nsimosci_hs.dts index d64a96f8515a..034a3139c1e2 100644 --- a/arch/arc/boot/dts/nsimosci_hs.dts +++ b/arch/arc/boot/dts/nsimosci_hs.dts @@ -65,10 +65,9 @@ }; eth0: ethernet@f0003000 { - compatible = "snps,oscilan"; + compatible = "ezchip,nps-mgt-enet"; reg = <0xf0003000 0x44>; - interrupts = <25>, <26>; - interrupt-names = "rx", "tx"; + interrupts = <25>; }; arcpct0: pct { diff --git a/arch/arc/boot/dts/nsimosci_hs_idu.dts b/arch/arc/boot/dts/nsimosci_hs_idu.dts index f6bf0ca95a57..8a1297e02540 100644 --- a/arch/arc/boot/dts/nsimosci_hs_idu.dts +++ b/arch/arc/boot/dts/nsimosci_hs_idu.dts @@ -85,11 +85,10 @@ }; eth0: ethernet@f0003000 { - compatible = "snps,oscilan"; + compatible = "ezchip,nps-mgt-enet"; reg = <0xf0003000 0x44>; interrupt-parent = <&idu_intc>; - interrupts = <1 2>, <2 2>; - interrupt-names = "rx", "tx"; + interrupts = <1 2>; }; arcpct0: pct { diff --git a/arch/arc/configs/axs101_defconfig b/arch/arc/configs/axs101_defconfig index 5d4e2a07ad3e..6cdffea3a914 100644 --- a/arch/arc/configs/axs101_defconfig +++ b/arch/arc/configs/axs101_defconfig @@ -1,4 +1,3 @@ -CONFIG_CROSS_COMPILE="arc-linux-" CONFIG_DEFAULT_HOSTNAME="ARCLinux" # CONFIG_SWAP is not set CONFIG_SYSVIPC=y diff --git a/arch/arc/configs/axs103_defconfig b/arch/arc/configs/axs103_defconfig index 87ee46b237ef..f8b396c9aedb 100644 --- a/arch/arc/configs/axs103_defconfig +++ b/arch/arc/configs/axs103_defconfig @@ -1,4 +1,3 @@ -CONFIG_CROSS_COMPILE="arc-linux-" CONFIG_DEFAULT_HOSTNAME="ARCLinux" # CONFIG_SWAP is not set CONFIG_SYSVIPC=y diff --git a/arch/arc/configs/axs103_smp_defconfig b/arch/arc/configs/axs103_smp_defconfig index d80daf4f7e73..56128ea2b748 100644 --- a/arch/arc/configs/axs103_smp_defconfig +++ b/arch/arc/configs/axs103_smp_defconfig @@ -1,4 +1,3 @@ -CONFIG_CROSS_COMPILE="arc-linux-" CONFIG_DEFAULT_HOSTNAME="ARCLinux" # CONFIG_SWAP is not set CONFIG_SYSVIPC=y diff --git a/arch/arc/configs/nsim_700_defconfig b/arch/arc/configs/nsim_700_defconfig index f41095340b6a..7314f538847b 100644 --- a/arch/arc/configs/nsim_700_defconfig +++ b/arch/arc/configs/nsim_700_defconfig @@ -1,4 +1,3 @@ -CONFIG_CROSS_COMPILE="arc-linux-" # CONFIG_LOCALVERSION_AUTO is not set CONFIG_DEFAULT_HOSTNAME="ARCLinux" # CONFIG_SWAP is not set diff --git a/arch/arc/configs/nsim_hs_defconfig b/arch/arc/configs/nsim_hs_defconfig index cfaa33cb5921..a99dc7a3f0af 100644 --- a/arch/arc/configs/nsim_hs_defconfig +++ b/arch/arc/configs/nsim_hs_defconfig @@ -1,4 +1,3 @@ -CONFIG_CROSS_COMPILE="arc-linux-" # CONFIG_LOCALVERSION_AUTO is not set CONFIG_DEFAULT_HOSTNAME="ARCLinux" # CONFIG_SWAP is not set diff --git a/arch/arc/configs/nsim_hs_smp_defconfig b/arch/arc/configs/nsim_hs_smp_defconfig index bb2a8dc778b5..59f221fc9a41 100644 --- a/arch/arc/configs/nsim_hs_smp_defconfig +++ b/arch/arc/configs/nsim_hs_smp_defconfig @@ -1,4 +1,3 @@ -CONFIG_CROSS_COMPILE="arc-linux-" # CONFIG_LOCALVERSION_AUTO is not set CONFIG_DEFAULT_HOSTNAME="ARCLinux" # CONFIG_SWAP is not set diff --git a/arch/arc/configs/nsimosci_defconfig b/arch/arc/configs/nsimosci_defconfig index 646182e93753..42bafa552498 100644 --- a/arch/arc/configs/nsimosci_defconfig +++ b/arch/arc/configs/nsimosci_defconfig @@ -1,4 +1,3 @@ -CONFIG_CROSS_COMPILE="arc-linux-" # CONFIG_LOCALVERSION_AUTO is not set CONFIG_DEFAULT_HOSTNAME="ARCLinux" # CONFIG_SWAP is not set @@ -39,6 +38,7 @@ CONFIG_DEVTMPFS=y # CONFIG_FIRMWARE_IN_KERNEL is not set # CONFIG_BLK_DEV is not set CONFIG_NETDEVICES=y +CONFIG_EZCHIP_NPS_MANAGEMENT_ENET=y # CONFIG_INPUT_MOUSEDEV is not set CONFIG_INPUT_EVDEV=y # CONFIG_MOUSE_PS2_ALPS is not set diff --git a/arch/arc/configs/nsimosci_hs_defconfig b/arch/arc/configs/nsimosci_hs_defconfig index ceca2541950d..4bb60c1cd4a2 100644 --- a/arch/arc/configs/nsimosci_hs_defconfig +++ b/arch/arc/configs/nsimosci_hs_defconfig @@ -1,4 +1,3 @@ -CONFIG_CROSS_COMPILE="arc-linux-" # CONFIG_LOCALVERSION_AUTO is not set CONFIG_DEFAULT_HOSTNAME="ARCLinux" # CONFIG_SWAP is not set @@ -40,6 +39,7 @@ CONFIG_DEVTMPFS=y # CONFIG_FIRMWARE_IN_KERNEL is not set # CONFIG_BLK_DEV is not set CONFIG_NETDEVICES=y +CONFIG_EZCHIP_NPS_MANAGEMENT_ENET=y CONFIG_INPUT_EVDEV=y # CONFIG_MOUSE_PS2_ALPS is not set # CONFIG_MOUSE_PS2_LOGIPS2PP is not set diff --git a/arch/arc/configs/nsimosci_hs_smp_defconfig b/arch/arc/configs/nsimosci_hs_smp_defconfig index 4b6da90f6f26..7e88f4c720f8 100644 --- a/arch/arc/configs/nsimosci_hs_smp_defconfig +++ b/arch/arc/configs/nsimosci_hs_smp_defconfig @@ -1,4 +1,3 @@ -CONFIG_CROSS_COMPILE="arc-linux-" CONFIG_DEFAULT_HOSTNAME="ARCLinux" # CONFIG_SWAP is not set CONFIG_SYSVIPC=y @@ -21,6 +20,7 @@ CONFIG_MODULES=y CONFIG_ARC_PLAT_SIM=y CONFIG_ISA_ARCV2=y CONFIG_SMP=y +# CONFIG_ARC_HAS_GFRC is not set CONFIG_ARC_BUILTIN_DTB_NAME="nsimosci_hs_idu" CONFIG_PREEMPT=y # CONFIG_COMPACTION is not set @@ -46,6 +46,7 @@ CONFIG_NETDEVICES=y # CONFIG_NET_VENDOR_ARC is not set # CONFIG_NET_CADENCE is not set # CONFIG_NET_VENDOR_BROADCOM is not set +CONFIG_EZCHIP_NPS_MANAGEMENT_ENET=y # CONFIG_NET_VENDOR_INTEL is not set # CONFIG_NET_VENDOR_MARVELL is not set # CONFIG_NET_VENDOR_MICREL is not set diff --git a/arch/arc/configs/tb10x_defconfig b/arch/arc/configs/tb10x_defconfig index 9b342eaf95ae..4c5118384eb5 100644 --- a/arch/arc/configs/tb10x_defconfig +++ b/arch/arc/configs/tb10x_defconfig @@ -1,4 +1,3 @@ -CONFIG_CROSS_COMPILE="arc-linux-" # CONFIG_LOCALVERSION_AUTO is not set CONFIG_DEFAULT_HOSTNAME="tb10x" CONFIG_SYSVIPC=y diff --git a/arch/arc/configs/vdk_hs38_defconfig b/arch/arc/configs/vdk_hs38_defconfig index a07f20de221b..c0d6a010751a 100644 --- a/arch/arc/configs/vdk_hs38_defconfig +++ b/arch/arc/configs/vdk_hs38_defconfig @@ -1,4 +1,3 @@ -CONFIG_CROSS_COMPILE="arc-linux-" # CONFIG_LOCALVERSION_AUTO is not set CONFIG_DEFAULT_HOSTNAME="ARCLinux" # CONFIG_CROSS_MEMORY_ATTACH is not set diff --git a/arch/arc/configs/vdk_hs38_smp_defconfig b/arch/arc/configs/vdk_hs38_smp_defconfig index 735985974a31..52ec315dc5c9 100644 --- a/arch/arc/configs/vdk_hs38_smp_defconfig +++ b/arch/arc/configs/vdk_hs38_smp_defconfig @@ -1,4 +1,3 @@ -CONFIG_CROSS_COMPILE="arc-linux-" # CONFIG_LOCALVERSION_AUTO is not set CONFIG_DEFAULT_HOSTNAME="ARCLinux" # CONFIG_CROSS_MEMORY_ATTACH is not set diff --git a/arch/arc/include/asm/arcregs.h b/arch/arc/include/asm/arcregs.h index f9f4c6f59fdb..7fbaea00a336 100644 --- a/arch/arc/include/asm/arcregs.h +++ b/arch/arc/include/asm/arcregs.h @@ -381,12 +381,6 @@ static inline int is_isa_arcompact(void) return IS_ENABLED(CONFIG_ISA_ARCOMPACT); } -#if defined(CONFIG_ISA_ARCOMPACT) && !defined(_CPU_DEFAULT_A7) -#error "Toolchain not configured for ARCompact builds" -#elif defined(CONFIG_ISA_ARCV2) && !defined(_CPU_DEFAULT_HS) -#error "Toolchain not configured for ARCv2 builds" -#endif - #endif /* __ASEMBLY__ */ #endif /* _ASM_ARC_ARCREGS_H */ diff --git a/arch/arc/include/asm/bitops.h b/arch/arc/include/asm/bitops.h index 57c1f33844d4..0352fb8d21b9 100644 --- a/arch/arc/include/asm/bitops.h +++ b/arch/arc/include/asm/bitops.h @@ -35,21 +35,6 @@ static inline void op##_bit(unsigned long nr, volatile unsigned long *m)\ \ m += nr >> 5; \ \ - /* \ - * ARC ISA micro-optimization: \ - * \ - * Instructions dealing with bitpos only consider lower 5 bits \ - * e.g (x << 33) is handled like (x << 1) by ASL instruction \ - * (mem pointer still needs adjustment to point to next word) \ - * \ - * Hence the masking to clamp @nr arg can be elided in general. \ - * \ - * However if @nr is a constant (above assumed in a register), \ - * and greater than 31, gcc can optimize away (x << 33) to 0, \ - * as overflow, given the 32-bit ISA. Thus masking needs to be \ - * done for const @nr, but no code is generated due to gcc \ - * const prop. \ - */ \ nr &= 0x1f; \ \ __asm__ __volatile__( \ diff --git a/arch/arc/include/asm/cache.h b/arch/arc/include/asm/cache.h index 210ef3e72332..23706c635c30 100644 --- a/arch/arc/include/asm/cache.h +++ b/arch/arc/include/asm/cache.h @@ -54,6 +54,7 @@ extern char *arc_cache_mumbojumbo(int cpu_id, char *buf, int len); extern void read_decode_cache_bcr(void); extern int ioc_exists; +extern unsigned long perip_base; #endif /* !__ASSEMBLY__ */ diff --git a/arch/arc/include/asm/cacheflush.h b/arch/arc/include/asm/cacheflush.h index fbe3587c4f36..a093adbdb017 100644 --- a/arch/arc/include/asm/cacheflush.h +++ b/arch/arc/include/asm/cacheflush.h @@ -40,9 +40,9 @@ void __flush_dcache_page(phys_addr_t paddr, unsigned long vaddr); void flush_dcache_page(struct page *page); -void dma_cache_wback_inv(unsigned long start, unsigned long sz); -void dma_cache_inv(unsigned long start, unsigned long sz); -void dma_cache_wback(unsigned long start, unsigned long sz); +void dma_cache_wback_inv(phys_addr_t start, unsigned long sz); +void dma_cache_inv(phys_addr_t start, unsigned long sz); +void dma_cache_wback(phys_addr_t start, unsigned long sz); #define flush_dcache_mmap_lock(mapping) do { } while (0) #define flush_dcache_mmap_unlock(mapping) do { } while (0) diff --git a/arch/arc/include/asm/checksum.h b/arch/arc/include/asm/checksum.h index 10957298b7a3..913eb4aab05b 100644 --- a/arch/arc/include/asm/checksum.h +++ b/arch/arc/include/asm/checksum.h @@ -70,8 +70,8 @@ ip_fast_csum(const void *iph, unsigned int ihl) * SA [4], DA [4], zeroes [1], Proto[1], TCP Seg(hdr+data) Len [2] */ static inline __wsum -csum_tcpudp_nofold(__be32 saddr, __be32 daddr, unsigned short len, - unsigned short proto, __wsum sum) +csum_tcpudp_nofold(__be32 saddr, __be32 daddr, __u32 len, + __u8 proto, __wsum sum) { __asm__ __volatile__( " add.f %0, %0, %1 \n" diff --git a/arch/arc/include/asm/cmpxchg.h b/arch/arc/include/asm/cmpxchg.h index af7a2db139c9..a444be67cd53 100644 --- a/arch/arc/include/asm/cmpxchg.h +++ b/arch/arc/include/asm/cmpxchg.h @@ -149,7 +149,7 @@ static inline unsigned long __xchg(unsigned long val, volatile void *ptr, * Since xchg() doesn't always do that, it would seem that following defintion * is incorrect. But here's the rationale: * SMP : Even xchg() takes the atomic_ops_lock, so OK. - * LLSC: atomic_ops_lock are not relevent at all (even if SMP, since LLSC + * LLSC: atomic_ops_lock are not relevant at all (even if SMP, since LLSC * is natively "SMP safe", no serialization required). * UP : other atomics disable IRQ, so no way a difft ctxt atomic_xchg() * could clobber them. atomic_xchg() itself would be 1 insn, so it diff --git a/arch/arc/include/asm/dma-mapping.h b/arch/arc/include/asm/dma-mapping.h index 660205414f1d..266f11c9bd59 100644 --- a/arch/arc/include/asm/dma-mapping.h +++ b/arch/arc/include/asm/dma-mapping.h @@ -11,6 +11,13 @@ #ifndef ASM_ARC_DMA_MAPPING_H #define ASM_ARC_DMA_MAPPING_H +#ifndef CONFIG_ARC_PLAT_NEEDS_PHYS_TO_DMA +#define plat_dma_to_phys(dev, dma_handle) ((phys_addr_t)(dma_handle)) +#define plat_phys_to_dma(dev, paddr) ((dma_addr_t)(paddr)) +#else +#include <plat/dma.h> +#endif + extern struct dma_map_ops arc_dma_ops; static inline struct dma_map_ops *get_dma_ops(struct device *dev) diff --git a/arch/arc/include/asm/dma.h b/arch/arc/include/asm/dma.h index ca7c45181de9..01e47a69b034 100644 --- a/arch/arc/include/asm/dma.h +++ b/arch/arc/include/asm/dma.h @@ -10,5 +10,10 @@ #define ASM_ARC_DMA_H #define MAX_DMA_ADDRESS 0xC0000000 +#ifdef CONFIG_PCI +extern int isa_dma_bridge_buggy; +#else +#define isa_dma_bridge_buggy 0 +#endif #endif diff --git a/arch/arc/include/asm/entry-compact.h b/arch/arc/include/asm/entry-compact.h index 1aff3be91075..1d8f57cd6057 100644 --- a/arch/arc/include/asm/entry-compact.h +++ b/arch/arc/include/asm/entry-compact.h @@ -231,7 +231,7 @@ /* free up r9 as scratchpad */ PROLOG_FREEUP_REG r9, @int\LVL\()_saved_reg - /* Which mode (user/kernel) was the system in when intr occured */ + /* Which mode (user/kernel) was the system in when intr occurred */ lr r9, [status32_l\LVL\()] SWITCH_TO_KERNEL_STK diff --git a/arch/arc/include/asm/hugepage.h b/arch/arc/include/asm/hugepage.h index c5094de86403..7afe3356b770 100644 --- a/arch/arc/include/asm/hugepage.h +++ b/arch/arc/include/asm/hugepage.h @@ -30,19 +30,16 @@ static inline pmd_t pte_pmd(pte_t pte) #define pmd_mkyoung(pmd) pte_pmd(pte_mkyoung(pmd_pte(pmd))) #define pmd_mkhuge(pmd) pte_pmd(pte_mkhuge(pmd_pte(pmd))) #define pmd_mknotpresent(pmd) pte_pmd(pte_mknotpresent(pmd_pte(pmd))) -#define pmd_mksplitting(pmd) pte_pmd(pte_mkspecial(pmd_pte(pmd))) #define pmd_mkclean(pmd) pte_pmd(pte_mkclean(pmd_pte(pmd))) #define pmd_write(pmd) pte_write(pmd_pte(pmd)) #define pmd_young(pmd) pte_young(pmd_pte(pmd)) #define pmd_pfn(pmd) pte_pfn(pmd_pte(pmd)) #define pmd_dirty(pmd) pte_dirty(pmd_pte(pmd)) -#define pmd_special(pmd) pte_special(pmd_pte(pmd)) #define mk_pmd(page, prot) pte_pmd(mk_pte(page, prot)) #define pmd_trans_huge(pmd) (pmd_val(pmd) & _PAGE_HW_SZ) -#define pmd_trans_splitting(pmd) (pmd_trans_huge(pmd) && pmd_special(pmd)) #define pfn_pmd(pfn, prot) (__pmd(((pfn) << PAGE_SHIFT) | pgprot_val(prot))) diff --git a/arch/arc/include/asm/io.h b/arch/arc/include/asm/io.h index 694ece8a0243..17f85c9c73cf 100644 --- a/arch/arc/include/asm/io.h +++ b/arch/arc/include/asm/io.h @@ -13,9 +13,18 @@ #include <asm/byteorder.h> #include <asm/page.h> -extern void __iomem *ioremap(unsigned long physaddr, unsigned long size); -extern void __iomem *ioremap_prot(phys_addr_t offset, unsigned long size, +extern void __iomem *ioremap(phys_addr_t paddr, unsigned long size); +extern void __iomem *ioremap_prot(phys_addr_t paddr, unsigned long size, unsigned long flags); +static inline void __iomem *ioport_map(unsigned long port, unsigned int nr) +{ + return (void __iomem *)port; +} + +static inline void ioport_unmap(void __iomem *addr) +{ +} + extern void iounmap(const void __iomem *addr); #define ioremap_nocache(phy, sz) ioremap(phy, sz) @@ -129,15 +138,23 @@ static inline void __raw_writel(u32 w, volatile void __iomem *addr) #define writel(v,c) ({ __iowmb(); writel_relaxed(v,c); }) /* - * Relaxed API for drivers which can handle any ordering themselves + * Relaxed API for drivers which can handle barrier ordering themselves + * + * Also these are defined to perform little endian accesses. + * To provide the typical device register semantics of fixed endian, + * swap the byte order for Big Endian + * + * http://lkml.kernel.org/r/201603100845.30602.arnd@arndb.de */ #define readb_relaxed(c) __raw_readb(c) -#define readw_relaxed(c) __raw_readw(c) -#define readl_relaxed(c) __raw_readl(c) +#define readw_relaxed(c) ({ u16 __r = le16_to_cpu((__force __le16) \ + __raw_readw(c)); __r; }) +#define readl_relaxed(c) ({ u32 __r = le32_to_cpu((__force __le32) \ + __raw_readl(c)); __r; }) #define writeb_relaxed(v,c) __raw_writeb(v,c) -#define writew_relaxed(v,c) __raw_writew(v,c) -#define writel_relaxed(v,c) __raw_writel(v,c) +#define writew_relaxed(v,c) __raw_writew((__force u16) cpu_to_le16(v),c) +#define writel_relaxed(v,c) __raw_writel((__force u32) cpu_to_le32(v),c) #include <asm-generic/io.h> diff --git a/arch/arc/include/asm/page.h b/arch/arc/include/asm/page.h index 429957f1c236..36da89e2c853 100644 --- a/arch/arc/include/asm/page.h +++ b/arch/arc/include/asm/page.h @@ -10,12 +10,8 @@ #include <uapi/asm/page.h> - #ifndef __ASSEMBLY__ -#define get_user_page(vaddr) __get_free_page(GFP_KERNEL) -#define free_user_page(page, addr) free_page(addr) - #define clear_page(paddr) memset((paddr), 0, PAGE_SIZE) #define copy_page(to, from) memcpy((to), (from), PAGE_SIZE) @@ -76,30 +72,26 @@ typedef unsigned long pgprot_t; typedef pte_t * pgtable_t; -#define ARCH_PFN_OFFSET (CONFIG_LINUX_LINK_BASE >> PAGE_SHIFT) +#define virt_to_pfn(kaddr) (__pa(kaddr) >> PAGE_SHIFT) -#define pfn_valid(pfn) (((pfn) - ARCH_PFN_OFFSET) < max_mapnr) +#define ARCH_PFN_OFFSET virt_to_pfn(CONFIG_LINUX_LINK_BASE) + +#define pfn_valid(pfn) (((pfn) - ARCH_PFN_OFFSET) < max_mapnr) /* * __pa, __va, virt_to_page (ALERT: deprecated, don't use them) * * These macros have historically been misnamed * virt here means link-address/program-address as embedded in object code. - * So if kernel img is linked at 0x8000_0000 onwards, 0x8010_0000 will be - * 128th page, and virt_to_page( ) will return the struct page corresp to it. - * mem_map[ ] is an array of struct page for each page frame in the system - * - * Independent of where linux is linked at, link-addr = physical address - * So the old macro __pa = vaddr + PAGE_OFFSET - CONFIG_LINUX_LINK_BASE - * would have been wrong in case kernel is not at 0x8zs + * And for ARC, link-addr = physical address */ #define __pa(vaddr) ((unsigned long)vaddr) #define __va(paddr) ((void *)((unsigned long)(paddr))) #define virt_to_page(kaddr) \ - (mem_map + ((__pa(kaddr) - CONFIG_LINUX_LINK_BASE) >> PAGE_SHIFT)) + (mem_map + virt_to_pfn((kaddr) - CONFIG_LINUX_LINK_BASE)) -#define virt_addr_valid(kaddr) pfn_valid(__pa(kaddr) >> PAGE_SHIFT) +#define virt_addr_valid(kaddr) pfn_valid(virt_to_pfn(kaddr)) /* Default Permissions for stack/heaps pages (Non Executable) */ #define VM_DATA_DEFAULT_FLAGS (VM_READ | VM_WRITE | VM_MAYREAD | VM_MAYWRITE) diff --git a/arch/arc/include/asm/pci.h b/arch/arc/include/asm/pci.h new file mode 100644 index 000000000000..ba56c23c1b20 --- /dev/null +++ b/arch/arc/include/asm/pci.h @@ -0,0 +1,28 @@ +/* + * Copyright (C) 2015-2016 Synopsys, Inc. (www.synopsys.com) + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#ifndef _ASM_ARC_PCI_H +#define _ASM_ARC_PCI_H + +#ifdef __KERNEL__ +#include <linux/ioport.h> + +#define PCIBIOS_MIN_IO 0x100 +#define PCIBIOS_MIN_MEM 0x100000 + +#define pcibios_assign_all_busses() 1 +/* + * The PCI address space does equal the physical memory address space. + * The networking and block device layers use this boolean for bounce + * buffer decisions. + */ +#define PCI_DMA_BUS_IS_PHYS 1 + +#endif /* __KERNEL__ */ + +#endif /* _ASM_ARC_PCI_H */ diff --git a/arch/arc/include/asm/pgtable.h b/arch/arc/include/asm/pgtable.h index d426d4215513..7d6c93e63adf 100644 --- a/arch/arc/include/asm/pgtable.h +++ b/arch/arc/include/asm/pgtable.h @@ -12,7 +12,7 @@ * - Utilise some unused free bits to confine PTE flags to 12 bits * This is a must for 4k pg-sz * - * vineetg: Mar 2011 - changes to accomodate MMU TLB Page Descriptor mods + * vineetg: Mar 2011 - changes to accommodate MMU TLB Page Descriptor mods * -TLB Locking never really existed, except for initial specs * -SILENT_xxx not needed for our port * -Per my request, MMU V3 changes the layout of some of the bits @@ -278,15 +278,14 @@ static inline void pmd_set(pmd_t *pmdp, pte_t *ptep) #define pmd_present(x) (pmd_val(x)) #define pmd_clear(xp) do { pmd_val(*(xp)) = 0; } while (0) -#define pte_page(x) (mem_map + \ - (unsigned long)(((pte_val(x) - CONFIG_LINUX_LINK_BASE) >> \ - PAGE_SHIFT))) +#define pte_page(pte) \ + (mem_map + virt_to_pfn(pte_val(pte) - CONFIG_LINUX_LINK_BASE)) #define mk_pte(page, prot) pfn_pte(page_to_pfn(page), prot) -#define pte_pfn(pte) (pte_val(pte) >> PAGE_SHIFT) +#define pte_pfn(pte) virt_to_pfn(pte_val(pte)) #define pfn_pte(pfn, prot) (__pte(((pte_t)(pfn) << PAGE_SHIFT) | \ pgprot_val(prot))) -#define __pte_index(addr) (((addr) >> PAGE_SHIFT) & (PTRS_PER_PTE - 1)) +#define __pte_index(addr) (virt_to_pfn(addr) & (PTRS_PER_PTE - 1)) /* * pte_offset gets a @ptr to PMD entry (PGD in our 2-tier paging system) diff --git a/arch/arc/include/asm/tlbflush.h b/arch/arc/include/asm/tlbflush.h index 1fe9c8c80280..f0d42f1e83f5 100644 --- a/arch/arc/include/asm/tlbflush.h +++ b/arch/arc/include/asm/tlbflush.h @@ -17,8 +17,10 @@ void local_flush_tlb_page(struct vm_area_struct *vma, unsigned long page); void local_flush_tlb_kernel_range(unsigned long start, unsigned long end); void local_flush_tlb_range(struct vm_area_struct *vma, unsigned long start, unsigned long end); +#ifdef CONFIG_TRANSPARENT_HUGEPAGE void local_flush_pmd_tlb_range(struct vm_area_struct *vma, unsigned long start, unsigned long end); +#endif #ifndef CONFIG_SMP #define flush_tlb_range(vma, s, e) local_flush_tlb_range(vma, s, e) @@ -26,7 +28,9 @@ void local_flush_pmd_tlb_range(struct vm_area_struct *vma, unsigned long start, #define flush_tlb_kernel_range(s, e) local_flush_tlb_kernel_range(s, e) #define flush_tlb_all() local_flush_tlb_all() #define flush_tlb_mm(mm) local_flush_tlb_mm(mm) +#ifdef CONFIG_TRANSPARENT_HUGEPAGE #define flush_pmd_tlb_range(vma, s, e) local_flush_pmd_tlb_range(vma, s, e) +#endif #else extern void flush_tlb_range(struct vm_area_struct *vma, unsigned long start, unsigned long end); @@ -34,7 +38,8 @@ extern void flush_tlb_page(struct vm_area_struct *vma, unsigned long page); extern void flush_tlb_kernel_range(unsigned long start, unsigned long end); extern void flush_tlb_all(void); extern void flush_tlb_mm(struct mm_struct *mm); +#ifdef CONFIG_TRANSPARENT_HUGEPAGE extern void flush_pmd_tlb_range(struct vm_area_struct *vma, unsigned long start, unsigned long end); - +#endif #endif /* CONFIG_SMP */ #endif diff --git a/arch/arc/kernel/Makefile b/arch/arc/kernel/Makefile index e7f3625a19b5..1bc2036b19d7 100644 --- a/arch/arc/kernel/Makefile +++ b/arch/arc/kernel/Makefile @@ -12,6 +12,7 @@ obj-y := arcksyms.o setup.o irq.o time.o reset.o ptrace.o process.o devtree.o obj-y += signal.o traps.o sys.o troubleshoot.o stacktrace.o disasm.o clk.o obj-$(CONFIG_ISA_ARCOMPACT) += entry-compact.o intc-compact.o obj-$(CONFIG_ISA_ARCV2) += entry-arcv2.o intc-arcv2.o +obj-$(CONFIG_PCI) += pcibios.o obj-$(CONFIG_MODULES) += arcksyms.o module.o obj-$(CONFIG_SMP) += smp.o diff --git a/arch/arc/kernel/pcibios.c b/arch/arc/kernel/pcibios.c new file mode 100644 index 000000000000..72e1d73d0bd6 --- /dev/null +++ b/arch/arc/kernel/pcibios.c @@ -0,0 +1,22 @@ +/* + * Copyright (C) 2014-2015 Synopsys, Inc. (www.synopsys.com) + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#include <linux/pci.h> + +/* + * We don't have to worry about legacy ISA devices, so nothing to do here + */ +resource_size_t pcibios_align_resource(void *data, const struct resource *res, + resource_size_t size, resource_size_t align) +{ + return res->start; +} + +void pcibios_fixup_bus(struct pci_bus *bus) +{ +} diff --git a/arch/arc/kernel/setup.c b/arch/arc/kernel/setup.c index cdc821df1809..151acf0c9383 100644 --- a/arch/arc/kernel/setup.c +++ b/arch/arc/kernel/setup.c @@ -91,11 +91,9 @@ static void read_decode_ccm_bcr(struct cpuinfo_arc *cpu) static void read_arc_build_cfg_regs(void) { - struct bcr_perip uncached_space; struct bcr_timer timer; struct bcr_generic bcr; struct cpuinfo_arc *cpu = &cpuinfo_arc700[smp_processor_id()]; - unsigned long perip_space; FIX_PTR(cpu); READ_BCR(AUX_IDENTITY, cpu->core); @@ -108,14 +106,6 @@ static void read_arc_build_cfg_regs(void) cpu->vec_base = read_aux_reg(AUX_INTR_VEC_BASE); - READ_BCR(ARC_REG_D_UNCACH_BCR, uncached_space); - if (uncached_space.ver < 3) - perip_space = uncached_space.start << 24; - else - perip_space = read_aux_reg(AUX_NON_VOL) & 0xF0000000; - - BUG_ON(perip_space != ARC_UNCACHED_ADDR_SPACE); - READ_BCR(ARC_REG_MUL_BCR, cpu->extn_mpy); cpu->extn.norm = read_aux_reg(ARC_REG_NORM_BCR) > 1 ? 1 : 0; /* 2,3 */ @@ -288,8 +278,8 @@ static char *arc_extn_mumbojumbo(int cpu_id, char *buf, int len) FIX_PTR(cpu); n += scnprintf(buf + n, len - n, - "Vector Table\t: %#x\nUncached Base\t: %#x\n", - cpu->vec_base, ARC_UNCACHED_ADDR_SPACE); + "Vector Table\t: %#x\nUncached Base\t: %#lx\n", + cpu->vec_base, perip_base); if (cpu->extn.fpu_sp || cpu->extn.fpu_dp) n += scnprintf(buf + n, len - n, "FPU\t\t: %s%s\n", @@ -357,11 +347,6 @@ static void arc_chk_core_config(void) pr_warn("CONFIG_ARC_FPU_SAVE_RESTORE needed for working apps\n"); else if (!cpu->extn.fpu_dp && fpu_enabled) panic("FPU non-existent, disable CONFIG_ARC_FPU_SAVE_RESTORE\n"); - - if (is_isa_arcv2() && IS_ENABLED(CONFIG_SMP) && cpu->isa.atomic && - IS_ENABLED(CONFIG_ARC_HAS_LLSC) && - !IS_ENABLED(CONFIG_ARC_STAR_9000923308)) - panic("llock/scond livelock workaround missing\n"); } /* @@ -464,7 +449,7 @@ static int __init customize_machine(void) * Traverses flattened DeviceTree - registering platform devices * (if any) complete with their resources */ - of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL); + of_platform_default_populate(NULL, NULL, NULL); if (machine_desc->init_machine) machine_desc->init_machine(); diff --git a/arch/arc/kernel/smp.c b/arch/arc/kernel/smp.c index 424e937da5c8..4cb3add77c75 100644 --- a/arch/arc/kernel/smp.c +++ b/arch/arc/kernel/smp.c @@ -142,7 +142,7 @@ void start_kernel_secondary(void) local_irq_enable(); preempt_disable(); - cpu_startup_entry(CPUHP_ONLINE); + cpu_startup_entry(CPUHP_AP_ONLINE_IDLE); } /* diff --git a/arch/arc/kernel/stacktrace.c b/arch/arc/kernel/stacktrace.c index 001de4ce711e..e0efff15a5ae 100644 --- a/arch/arc/kernel/stacktrace.c +++ b/arch/arc/kernel/stacktrace.c @@ -232,7 +232,7 @@ void show_stack(struct task_struct *tsk, unsigned long *sp) } /* Another API expected by schedular, shows up in "ps" as Wait Channel - * Ofcourse just returning schedule( ) would be pointless so unwind until + * Of course just returning schedule( ) would be pointless so unwind until * the function is not in schedular code */ unsigned int get_wchan(struct task_struct *tsk) diff --git a/arch/arc/kernel/time.c b/arch/arc/kernel/time.c index 156d9833ff84..7d9a736fc7e5 100644 --- a/arch/arc/kernel/time.c +++ b/arch/arc/kernel/time.c @@ -55,8 +55,8 @@ #define ARC_REG_TIMER1_CTRL 0x101 /* timer 1 control */ #define ARC_REG_TIMER1_CNT 0x100 /* timer 1 count */ -#define TIMER_CTRL_IE (1 << 0) /* Interupt when Count reachs limit */ -#define TIMER_CTRL_NH (1 << 1) /* Count only when CPU NOT halted */ +#define TIMER_CTRL_IE (1 << 0) /* Interrupt when Count reaches limit */ +#define TIMER_CTRL_NH (1 << 1) /* Count only when CPU NOT halted */ #define ARC_TIMER_MAX 0xFFFFFFFF diff --git a/arch/arc/mm/cache.c b/arch/arc/mm/cache.c index b65f797e9ad6..d7709e3930a3 100644 --- a/arch/arc/mm/cache.c +++ b/arch/arc/mm/cache.c @@ -24,13 +24,14 @@ static int l2_line_sz; int ioc_exists; volatile int slc_enable = 1, ioc_enable = 1; +unsigned long perip_base = ARC_UNCACHED_ADDR_SPACE; /* legacy value for boot */ void (*_cache_line_loop_ic_fn)(phys_addr_t paddr, unsigned long vaddr, unsigned long sz, const int cacheop); -void (*__dma_cache_wback_inv)(unsigned long start, unsigned long sz); -void (*__dma_cache_inv)(unsigned long start, unsigned long sz); -void (*__dma_cache_wback)(unsigned long start, unsigned long sz); +void (*__dma_cache_wback_inv)(phys_addr_t start, unsigned long sz); +void (*__dma_cache_inv)(phys_addr_t start, unsigned long sz); +void (*__dma_cache_wback)(phys_addr_t start, unsigned long sz); char *arc_cache_mumbojumbo(int c, char *buf, int len) { @@ -75,6 +76,7 @@ char *arc_cache_mumbojumbo(int c, char *buf, int len) static void read_decode_cache_bcr_arcv2(int cpu) { struct cpuinfo_arc_cache *p_slc = &cpuinfo_arc700[cpu].slc; + struct bcr_generic uncached_space; struct bcr_generic sbcr; struct bcr_slc_cfg { @@ -104,6 +106,11 @@ static void read_decode_cache_bcr_arcv2(int cpu) READ_BCR(ARC_REG_CLUSTER_BCR, cbcr); if (cbcr.c && ioc_enable) ioc_exists = 1; + + /* Legacy Data Uncached BCR is deprecated from v3 onwards */ + READ_BCR(ARC_REG_D_UNCACH_BCR, uncached_space); + if (uncached_space.ver > 2) + perip_base = read_aux_reg(AUX_NON_VOL) & 0xF0000000; } void read_decode_cache_bcr(void) @@ -633,38 +640,38 @@ EXPORT_SYMBOL(flush_dcache_page); * DMA ops for systems with L1 cache only * Make memory coherent with L1 cache by flushing/invalidating L1 lines */ -static void __dma_cache_wback_inv_l1(unsigned long start, unsigned long sz) +static void __dma_cache_wback_inv_l1(phys_addr_t start, unsigned long sz) { __dc_line_op_k(start, sz, OP_FLUSH_N_INV); } -static void __dma_cache_inv_l1(unsigned long start, unsigned long sz) +static void __dma_cache_inv_l1(phys_addr_t start, unsigned long sz) { __dc_line_op_k(start, sz, OP_INV); } -static void __dma_cache_wback_l1(unsigned long start, unsigned long sz) +static void __dma_cache_wback_l1(phys_addr_t start, unsigned long sz) { __dc_line_op_k(start, sz, OP_FLUSH); } /* * DMA ops for systems with both L1 and L2 caches, but without IOC - * Both L1 and L2 lines need to be explicity flushed/invalidated + * Both L1 and L2 lines need to be explicitly flushed/invalidated */ -static void __dma_cache_wback_inv_slc(unsigned long start, unsigned long sz) +static void __dma_cache_wback_inv_slc(phys_addr_t start, unsigned long sz) { __dc_line_op_k(start, sz, OP_FLUSH_N_INV); slc_op(start, sz, OP_FLUSH_N_INV); } -static void __dma_cache_inv_slc(unsigned long start, unsigned long sz) +static void __dma_cache_inv_slc(phys_addr_t start, unsigned long sz) { __dc_line_op_k(start, sz, OP_INV); slc_op(start, sz, OP_INV); } -static void __dma_cache_wback_slc(unsigned long start, unsigned long sz) +static void __dma_cache_wback_slc(phys_addr_t start, unsigned long sz) { __dc_line_op_k(start, sz, OP_FLUSH); slc_op(start, sz, OP_FLUSH); @@ -675,26 +682,26 @@ static void __dma_cache_wback_slc(unsigned long start, unsigned long sz) * IOC hardware snoops all DMA traffic keeping the caches consistent with * memory - eliding need for any explicit cache maintenance of DMA buffers */ -static void __dma_cache_wback_inv_ioc(unsigned long start, unsigned long sz) {} -static void __dma_cache_inv_ioc(unsigned long start, unsigned long sz) {} -static void __dma_cache_wback_ioc(unsigned long start, unsigned long sz) {} +static void __dma_cache_wback_inv_ioc(phys_addr_t start, unsigned long sz) {} +static void __dma_cache_inv_ioc(phys_addr_t start, unsigned long sz) {} +static void __dma_cache_wback_ioc(phys_addr_t start, unsigned long sz) {} /* * Exported DMA API */ -void dma_cache_wback_inv(unsigned long start, unsigned long sz) +void dma_cache_wback_inv(phys_addr_t start, unsigned long sz) { __dma_cache_wback_inv(start, sz); } EXPORT_SYMBOL(dma_cache_wback_inv); -void dma_cache_inv(unsigned long start, unsigned long sz) +void dma_cache_inv(phys_addr_t start, unsigned long sz) { __dma_cache_inv(start, sz); } EXPORT_SYMBOL(dma_cache_inv); -void dma_cache_wback(unsigned long start, unsigned long sz) +void dma_cache_wback(phys_addr_t start, unsigned long sz) { __dma_cache_wback(start, sz); } diff --git a/arch/arc/mm/dma.c b/arch/arc/mm/dma.c index 01eaf88bf821..8c8e36fa5659 100644 --- a/arch/arc/mm/dma.c +++ b/arch/arc/mm/dma.c @@ -24,22 +24,22 @@ static void *arc_dma_alloc(struct device *dev, size_t size, dma_addr_t *dma_handle, gfp_t gfp, struct dma_attrs *attrs) { - void *paddr, *kvaddr; - - /* This is linear addr (0x8000_0000 based) */ - paddr = alloc_pages_exact(size, gfp); - if (!paddr) + unsigned long order = get_order(size); + struct page *page; + phys_addr_t paddr; + void *kvaddr; + int need_coh = 1, need_kvaddr = 0; + + page = alloc_pages(gfp, order); + if (!page) return NULL; - /* This is bus address, platform dependent */ - *dma_handle = (dma_addr_t)paddr; - /* * IOC relies on all data (even coherent DMA data) being in cache * Thus allocate normal cached memory * * The gains with IOC are two pronged: - * -For streaming data, elides needs for cache maintenance, saving + * -For streaming data, elides need for cache maintenance, saving * cycles in flush code, and bus bandwidth as all the lines of a |