diff options
37 files changed, 772 insertions, 663 deletions
diff --git a/Documentation/features/core/tracehook/arch-support.txt b/Documentation/features/core/tracehook/arch-support.txt index d344b99aae1e..964667052eda 100644 --- a/Documentation/features/core/tracehook/arch-support.txt +++ b/Documentation/features/core/tracehook/arch-support.txt @@ -30,5 +30,5 @@ | um: | TODO | | unicore32: | TODO | | x86: | ok | - | xtensa: | TODO | + | xtensa: | ok | ----------------------- diff --git a/arch/xtensa/Kconfig b/arch/xtensa/Kconfig index c95a34702242..4a3fa295d8fe 100644 --- a/arch/xtensa/Kconfig +++ b/arch/xtensa/Kconfig @@ -21,8 +21,8 @@ config XTENSA select GENERIC_PCI_IOMAP select GENERIC_SCHED_CLOCK select GENERIC_STRNCPY_FROM_USER if KASAN - select HAVE_ARCH_JUMP_LABEL - select HAVE_ARCH_KASAN if MMU + select HAVE_ARCH_JUMP_LABEL if !XIP_KERNEL + select HAVE_ARCH_KASAN if MMU && !XIP_KERNEL select HAVE_ARCH_TRACEHOOK select HAVE_DEBUG_KMEMLEAK select HAVE_DMA_CONTIGUOUS @@ -215,151 +215,6 @@ config HOTPLUG_CPU Say N if you want to disable CPU hotplug. -config INITIALIZE_XTENSA_MMU_INSIDE_VMLINUX - bool "Initialize Xtensa MMU inside the Linux kernel code" - depends on !XTENSA_VARIANT_FSF && !XTENSA_VARIANT_DC232B - default y if XTENSA_VARIANT_DC233C || XTENSA_VARIANT_CUSTOM - help - Earlier version initialized the MMU in the exception vector - before jumping to _startup in head.S and had an advantage that - it was possible to place a software breakpoint at 'reset' and - then enter your normal kernel breakpoints once the MMU was mapped - to the kernel mappings (0XC0000000). - - This unfortunately won't work for U-Boot and likely also wont - work for using KEXEC to have a hot kernel ready for doing a - KDUMP. - - So now the MMU is initialized in head.S but it's necessary to - use hardware breakpoints (gdb 'hbreak' cmd) to break at _startup. - xt-gdb can't place a Software Breakpoint in the 0XD region prior - to mapping the MMU and after mapping even if the area of low memory - was mapped gdb wouldn't remove the breakpoint on hitting it as the - PC wouldn't match. Since Hardware Breakpoints are recommended for - Linux configurations it seems reasonable to just assume they exist - and leave this older mechanism for unfortunate souls that choose - not to follow Tensilica's recommendation. - - Selecting this will cause U-Boot to set the KERNEL Load and Entry - address at 0x00003000 instead of the mapped std of 0xD0003000. - - If in doubt, say Y. - -config MEMMAP_CACHEATTR - hex "Cache attributes for the memory address space" - depends on !MMU - default 0x22222222 - help - These cache attributes are set up for noMMU systems. Each hex digit - specifies cache attributes for the corresponding 512MB memory - region: bits 0..3 -- for addresses 0x00000000..0x1fffffff, - bits 4..7 -- for addresses 0x20000000..0x3fffffff, and so on. - - Cache attribute values are specific for the MMU type. - For region protection MMUs: - 1: WT cached, - 2: cache bypass, - 4: WB cached, - f: illegal. - For ful MMU: - bit 0: executable, - bit 1: writable, - bits 2..3: - 0: cache bypass, - 1: WB cache, - 2: WT cache, - 3: special (c and e are illegal, f is reserved). - For MPU: - 0: illegal, - 1: WB cache, - 2: WB, no-write-allocate cache, - 3: WT cache, - 4: cache bypass. - -config KSEG_PADDR - hex "Physical address of the KSEG mapping" - depends on INITIALIZE_XTENSA_MMU_INSIDE_VMLINUX && MMU - default 0x00000000 - help - This is the physical address where KSEG is mapped. Please refer to - the chosen KSEG layout help for the required address alignment. - Unpacked kernel image (including vectors) must be located completely - within KSEG. - Physical memory below this address is not available to linux. - - If unsure, leave the default value here. - -config KERNEL_LOAD_ADDRESS - hex "Kernel load address" - default 0x60003000 if !MMU - default 0x00003000 if MMU && INITIALIZE_XTENSA_MMU_INSIDE_VMLINUX - default 0xd0003000 if MMU && !INITIALIZE_XTENSA_MMU_INSIDE_VMLINUX - help - This is the address where the kernel is loaded. - It is virtual address for MMUv2 configurations and physical address - for all other configurations. - - If unsure, leave the default value here. - -config VECTORS_OFFSET - hex "Kernel vectors offset" - default 0x00003000 - help - This is the offset of the kernel image from the relocatable vectors - base. - - If unsure, leave the default value here. - -choice - prompt "KSEG layout" - depends on MMU - default XTENSA_KSEG_MMU_V2 - -config XTENSA_KSEG_MMU_V2 - bool "MMUv2: 128MB cached + 128MB uncached" - help - MMUv2 compatible kernel memory map: TLB way 5 maps 128MB starting - at KSEG_PADDR to 0xd0000000 with cache and to 0xd8000000 - without cache. - KSEG_PADDR must be aligned to 128MB. - -config XTENSA_KSEG_256M - bool "256MB cached + 256MB uncached" - depends on INITIALIZE_XTENSA_MMU_INSIDE_VMLINUX - help - TLB way 6 maps 256MB starting at KSEG_PADDR to 0xb0000000 - with cache and to 0xc0000000 without cache. - KSEG_PADDR must be aligned to 256MB. - -config XTENSA_KSEG_512M - bool "512MB cached + 512MB uncached" - depends on INITIALIZE_XTENSA_MMU_INSIDE_VMLINUX - help - TLB way 6 maps 512MB starting at KSEG_PADDR to 0xa0000000 - with cache and to 0xc0000000 without cache. - KSEG_PADDR must be aligned to 256MB. - -endchoice - -config HIGHMEM - bool "High Memory Support" - depends on MMU - help - Linux can use the full amount of RAM in the system by - default. However, the default MMUv2 setup only maps the - lowermost 128 MB of memory linearly to the areas starting - at 0xd0000000 (cached) and 0xd8000000 (uncached). - When there are more than 128 MB memory in the system not - all of it can be "permanently mapped" by the kernel. - The physical memory that's not permanently mapped is called - "high memory". - - If you are compiling a kernel which will never run on a - machine with more than 128 MB total physical RAM, answer - N here. - - If unsure, say Y. - config FAST_SYSCALL_XTENSA bool "Enable fast atomic syscalls" default n @@ -446,6 +301,9 @@ config XTENSA_CALIBRATE_CCOUNT config SERIAL_CONSOLE def_bool n +config PLATFORM_HAVE_XIP + def_bool n + menu "Platform options" choice @@ -472,6 +330,7 @@ config XTENSA_PLATFORM_XTFPGA select PLATFORM_WANT_DEFAULT_MEM if !MMU select SERIAL_CONSOLE select XTENSA_CALIBRATE_CCOUNT + select PLATFORM_HAVE_XIP help XTFPGA is the name of Tensilica board family (LX60, LX110, LX200, ML605). This hardware is capable of running a full Linux distribution. @@ -563,34 +422,6 @@ config SIMDISK1_FILENAME Another simulated disk in a host file for a buildroot-independent storage. -config FORCE_MAX_ZONEORDER - int "Maximum zone order" - default "11" - help - The kernel memory allocator divides physically contiguous memory - blocks into "zones", where each zone is a power of two number of - pages. This option selects the largest power of two that the kernel - keeps in the memory allocator. If you need to allocate very large - blocks of physically contiguous memory, then you may need to - increase this value. - - This config option is actually maximum order plus one. For example, - a value of 11 means that the largest free memory block is 2^10 pages. - -config PLATFORM_WANT_DEFAULT_MEM - def_bool n - -config DEFAULT_MEM_START - hex - prompt "PAGE_OFFSET/PHYS_OFFSET" if !MMU && PLATFORM_WANT_DEFAULT_MEM - default 0x60000000 if PLATFORM_WANT_DEFAULT_MEM - default 0x00000000 - help - This is the base address used for both PAGE_OFFSET and PHYS_OFFSET - in noMMU configurations. - - If unsure, leave the default value here. - config XTFPGA_LCD bool "Enable XTFPGA LCD driver" depends on XTENSA_PLATFORM_XTFPGA @@ -621,6 +452,221 @@ config XTFPGA_LCD_8BIT_ACCESS only be used with 8-bit interface. Please consult prototyping user guide for your board for the correct interface width. +comment "Kernel memory layout" + +config INITIALIZE_XTENSA_MMU_INSIDE_VMLINUX + bool "Initialize Xtensa MMU inside the Linux kernel code" + depends on !XTENSA_VARIANT_FSF && !XTENSA_VARIANT_DC232B + default y if XTENSA_VARIANT_DC233C || XTENSA_VARIANT_CUSTOM + help + Earlier version initialized the MMU in the exception vector + before jumping to _startup in head.S and had an advantage that + it was possible to place a software breakpoint at 'reset' and + then enter your normal kernel breakpoints once the MMU was mapped + to the kernel mappings (0XC0000000). + + This unfortunately won't work for U-Boot and likely also wont + work for using KEXEC to have a hot kernel ready for doing a + KDUMP. + + So now the MMU is initialized in head.S but it's necessary to + use hardware breakpoints (gdb 'hbreak' cmd) to break at _startup. + xt-gdb can't place a Software Breakpoint in the 0XD region prior + to mapping the MMU and after mapping even if the area of low memory + was mapped gdb wouldn't remove the breakpoint on hitting it as the + PC wouldn't match. Since Hardware Breakpoints are recommended for + Linux configurations it seems reasonable to just assume they exist + and leave this older mechanism for unfortunate souls that choose + not to follow Tensilica's recommendation. + + Selecting this will cause U-Boot to set the KERNEL Load and Entry + address at 0x00003000 instead of the mapped std of 0xD0003000. + + If in doubt, say Y. + +config XIP_KERNEL + bool "Kernel Execute-In-Place from ROM" + depends on PLATFORM_HAVE_XIP + help + Execute-In-Place allows the kernel to run from non-volatile storage + directly addressable by the CPU, such as NOR flash. This saves RAM + space since the text section of the kernel is not loaded from flash + to RAM. Read-write sections, such as the data section and stack, + are still copied to RAM. The XIP kernel is not compressed since + it has to run directly from flash, so it will take more space to + store it. The flash address used to link the kernel object files, + and for storing it, is configuration dependent. Therefore, if you + say Y here, you must know the proper physical address where to + store the kernel image depending on your own flash memory usage. + + Also note that the make target becomes "make xipImage" rather than + "make Image" or "make uImage". The final kernel binary to put in + ROM memory will be arch/xtensa/boot/xipImage. + + If unsure, say N. + +config MEMMAP_CACHEATTR + hex "Cache attributes for the memory address space" + depends on !MMU + default 0x22222222 + help + These cache attributes are set up for noMMU systems. Each hex digit + specifies cache attributes for the corresponding 512MB memory + region: bits 0..3 -- for addresses 0x00000000..0x1fffffff, + bits 4..7 -- for addresses 0x20000000..0x3fffffff, and so on. + + Cache attribute values are specific for the MMU type. + For region protection MMUs: + 1: WT cached, + 2: cache bypass, + 4: WB cached, + f: illegal. + For ful MMU: + bit 0: executable, + bit 1: writable, + bits 2..3: + 0: cache bypass, + 1: WB cache, + 2: WT cache, + 3: special (c and e are illegal, f is reserved). + For MPU: + 0: illegal, + 1: WB cache, + 2: WB, no-write-allocate cache, + 3: WT cache, + 4: cache bypass. + +config KSEG_PADDR + hex "Physical address of the KSEG mapping" + depends on INITIALIZE_XTENSA_MMU_INSIDE_VMLINUX && MMU + default 0x00000000 + help + This is the physical address where KSEG is mapped. Please refer to + the chosen KSEG layout help for the required address alignment. + Unpacked kernel image (including vectors) must be located completely + within KSEG. + Physical memory below this address is not available to linux. + + If unsure, leave the default value here. + +config KERNEL_VIRTUAL_ADDRESS + hex "Kernel virtual address" + depends on MMU && XIP_KERNEL + default 0xd0003000 + help + This is the virtual address where the XIP kernel is mapped. + XIP kernel may be mapped into KSEG or KIO region, virtual address + provided here must match kernel load address provided in + KERNEL_LOAD_ADDRESS. + +config KERNEL_LOAD_ADDRESS + hex "Kernel load address" + default 0x60003000 if !MMU + default 0x00003000 if MMU && INITIALIZE_XTENSA_MMU_INSIDE_VMLINUX + default 0xd0003000 if MMU && !INITIALIZE_XTENSA_MMU_INSIDE_VMLINUX + help + This is the address where the kernel is loaded. + It is virtual address for MMUv2 configurations and physical address + for all other configurations. + + If unsure, leave the default value here. + +config VECTORS_OFFSET + hex "Kernel vectors offset" + default 0x00003000 + depends on !XIP_KERNEL + help + This is the offset of the kernel image from the relocatable vectors + base. + + If unsure, leave the default value here. + +config XIP_DATA_ADDR + hex "XIP kernel data virtual address" + depends on XIP_KERNEL + default 0x00000000 + help + This is the virtual address where XIP kernel data is copied. + It must be within KSEG if MMU is used. + +config PLATFORM_WANT_DEFAULT_MEM + def_bool n + +config DEFAULT_MEM_START + hex + prompt "PAGE_OFFSET/PHYS_OFFSET" if !MMU && PLATFORM_WANT_DEFAULT_MEM + default 0x60000000 if PLATFORM_WANT_DEFAULT_MEM + default 0x00000000 + help + This is the base address used for both PAGE_OFFSET and PHYS_OFFSET + in noMMU configurations. + + If unsure, leave the default value here. + +choice + prompt "KSEG layout" + depends on MMU + default XTENSA_KSEG_MMU_V2 + +config XTENSA_KSEG_MMU_V2 + bool "MMUv2: 128MB cached + 128MB uncached" + help + MMUv2 compatible kernel memory map: TLB way 5 maps 128MB starting + at KSEG_PADDR to 0xd0000000 with cache and to 0xd8000000 + without cache. + KSEG_PADDR must be aligned to 128MB. + +config XTENSA_KSEG_256M + bool "256MB cached + 256MB uncached" + depends on INITIALIZE_XTENSA_MMU_INSIDE_VMLINUX + help + TLB way 6 maps 256MB starting at KSEG_PADDR to 0xb0000000 + with cache and to 0xc0000000 without cache. + KSEG_PADDR must be aligned to 256MB. + +config XTENSA_KSEG_512M + bool "512MB cached + 512MB uncached" + depends on INITIALIZE_XTENSA_MMU_INSIDE_VMLINUX + help + TLB way 6 maps 512MB starting at KSEG_PADDR to 0xa0000000 + with cache and to 0xc0000000 without cache. + KSEG_PADDR must be aligned to 256MB. + +endchoice + +config HIGHMEM + bool "High Memory Support" + depends on MMU + help + Linux can use the full amount of RAM in the system by + default. However, the default MMUv2 setup only maps the + lowermost 128 MB of memory linearly to the areas starting + at 0xd0000000 (cached) and 0xd8000000 (uncached). + When there are more than 128 MB memory in the system not + all of it can be "permanently mapped" by the kernel. + The physical memory that's not permanently mapped is called + "high memory". + + If you are compiling a kernel which will never run on a + machine with more than 128 MB total physical RAM, answer + N here. + + If unsure, say Y. + +config FORCE_MAX_ZONEORDER + int "Maximum zone order" + default "11" + help + The kernel memory allocator divides physically contiguous memory + blocks into "zones", where each zone is a power of two number of + pages. This option selects the largest power of two that the kernel + keeps in the memory allocator. If you need to allocate very large + blocks of physically contiguous memory, then you may need to + increase this value. + + This config option is actually maximum order plus one. For example, + a value of 11 means that the largest free memory block is 2^10 pages. + endmenu menu "Power management options" diff --git a/arch/xtensa/Kconfig.debug b/arch/xtensa/Kconfig.debug index 39de98e20018..83cc8d12fa0e 100644 --- a/arch/xtensa/Kconfig.debug +++ b/arch/xtensa/Kconfig.debug @@ -31,3 +31,10 @@ config S32C1I_SELFTEST It is easy to make wrong hardware configuration, this test should catch it early. Say 'N' on stable hardware. + +config PRINT_STACK_DEPTH + int "Stack depth to print" if DEBUG_KERNEL + default 64 + help + This option allows you to set the stack depth that the kernel + prints in stack traces. diff --git a/arch/xtensa/Makefile b/arch/xtensa/Makefile index 1542018c9e57..67a7d151d1e7 100644 --- a/arch/xtensa/Makefile +++ b/arch/xtensa/Makefile @@ -87,7 +87,7 @@ drivers-$(CONFIG_OPROFILE) += arch/xtensa/oprofile/ boot := arch/xtensa/boot -all Image zImage uImage: vmlinux +all Image zImage uImage xipImage: vmlinux $(Q)$(MAKE) $(build)=$(boot) $@ archheaders: @@ -97,4 +97,5 @@ define archhelp @echo '* Image - Kernel ELF image with reset vector' @echo '* zImage - Compressed kernel image (arch/xtensa/boot/images/zImage.*)' @echo '* uImage - U-Boot wrapped image' + @echo ' xipImage - XIP image' endef diff --git a/arch/xtensa/boot/Makefile b/arch/xtensa/boot/Makefile index 294846117fc2..efb91bfda2b4 100644 --- a/arch/xtensa/boot/Makefile +++ b/arch/xtensa/boot/Makefile @@ -29,6 +29,7 @@ all: $(boot-y) Image: boot-elf zImage: boot-redboot uImage: $(obj)/uImage +xipImage: $(obj)/xipImage boot-elf boot-redboot: $(addprefix $(obj)/,$(subdir-y)) $(Q)$(MAKE) $(build)=$(obj)/$@ $(MAKECMDGOALS) @@ -50,3 +51,7 @@ UIMAGE_COMPRESSION = gzip $(obj)/uImage: vmlinux.bin.gz FORCE $(call if_changed,uimage) $(Q)$(kecho) ' Kernel: $@ is ready' + +$(obj)/xipImage: vmlinux FORCE + $(call if_changed,objcopy) + $(Q)$(kecho) ' Kernel: $@ is ready' diff --git a/arch/xtensa/configs/xip_kc705_defconfig b/arch/xtensa/configs/xip_kc705_defconfig new file mode 100644 index 000000000000..f9e85c082afc --- /dev/null +++ b/arch/xtensa/configs/xip_kc705_defconfig @@ -0,0 +1,119 @@ +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_KALLSYMS_ALL=y +CONFIG_PROFILING=y +CONFIG_XTENSA_VARIANT_DC233C=y +CONFIG_XTENSA_UNALIGNED_USER=y +CONFIG_XIP_KERNEL=y +CONFIG_XIP_DATA_ADDR=0xd0000000 +CONFIG_KERNEL_VIRTUAL_ADDRESS=0xe6000000 +CONFIG_KERNEL_LOAD_ADDRESS=0xf6000000 +CONFIG_XTENSA_KSEG_512M=y +CONFIG_HIGHMEM=y +CONFIG_XTENSA_PLATFORM_XTFPGA=y +CONFIG_CMDLINE_BOOL=y +CONFIG_CMDLINE="earlycon=uart8250,mmio32native,0xfd050020,115200n8 console=ttyS0,115200n8 ip=dhcp root=/dev/nfs rw debug memmap=0x38000000@0" +CONFIG_USE_OF=y +CONFIG_BUILTIN_DTB_SOURCE="kc705" +# CONFIG_PARSE_BOOTPARAM is not set +CONFIG_OPROFILE=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_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_SCSI=y +CONFIG_BLK_DEV_SD=y +CONFIG_NETDEVICES=y +# CONFIG_NET_VENDOR_ARC is not set +# CONFIG_NET_VENDOR_AURORA is not set +# CONFIG_NET_VENDOR_BROADCOM is not set +# CONFIG_NET_VENDOR_INTEL is not set +# CONFIG_NET_VENDOR_MARVELL is not set +# CONFIG_NET_VENDOR_MICREL is not set +# CONFIG_NET_VENDOR_NATSEMI is not set +# CONFIG_NET_VENDOR_SAMSUNG is not set +# CONFIG_NET_VENDOR_SEEQ is not set +# CONFIG_NET_VENDOR_SMSC is not set +# CONFIG_NET_VENDOR_STMICRO is not set +# CONFIG_NET_VENDOR_VIA is not set +# CONFIG_NET_VENDOR_WIZNET is not set +CONFIG_MARVELL_PHY=y +# CONFIG_WLAN is not set +# CONFIG_INPUT_KEYBOARD is not set +# CONFIG_INPUT_MOUSE is not set +# CONFIG_SERIO is not set +CONFIG_DEVKMEM=y +CONFIG_SERIAL_8250=y +# CONFIG_SERIAL_8250_DEPRECATED_OPTIONS is not set +CONFIG_SERIAL_8250_CONSOLE=y +CONFIG_SERIAL_OF_PLATFORM=y +# CONFIG_HWMON is not set +CONFIG_WATCHDOG=y +CONFIG_WATCHDOG_NOWAYOUT=y +CONFIG_SOFT_WATCHDOG=y +# CONFIG_VGA_CONSOLE is not set +# CONFIG_USB_SUPPORT is not set +# 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_PRINTK_TIME=y +CONFIG_DYNAMIC_DEBUG=y +CONFIG_DEBUG_INFO=y +CONFIG_MAGIC_SYSRQ=y +CONFIG_DETECT_HUNG_TASK=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/Kbuild b/arch/xtensa/include/asm/Kbuild index ffa0cf7f66c3..3acc31e55e02 100644 --- a/arch/xtensa/include/asm/Kbuild +++ b/arch/xtensa/include/asm/Kbuild @@ -11,6 +11,7 @@ generic-y += exec.h generic-y += extable.h generic-y += fb.h generic-y += hardirq.h +generic-y += hw_irq.h generic-y += irq_regs.h generic-y += irq_work.h generic-y += kdebug.h @@ -30,6 +31,7 @@ generic-y += qspinlock.h generic-y += sections.h generic-y += topology.h generic-y += trace_clock.h +generic-y += user.h generic-y += vga.h generic-y += word-at-a-time.h generic-y += xor.h diff --git a/arch/xtensa/include/asm/atomic.h b/arch/xtensa/include/asm/atomic.h index 7b00d26f472e..3e7c6134ed32 100644 --- a/arch/xtensa/include/asm/atomic.h +++ b/arch/xtensa/include/asm/atomic.h @@ -64,13 +64,13 @@ static inline void atomic_##op(int i, atomic_t *v) \ int result; \ \ __asm__ __volatile__( \ - "1: l32ex %1, %3\n" \ - " " #op " %0, %1, %2\n" \ - " s32ex %0, %3\n" \ - " getex %0\n" \ - " beqz %0, 1b\n" \ - : "=&a" (result), "=&a" (tmp) \ - : "a" (i), "a" (v) \ + "1: l32ex %[tmp], %[addr]\n" \ + " " #op " %[result], %[tmp], %[i]\n" \ + " s32ex %[result], %[addr]\n" \ + " getex %[result]\n" \ + " beqz %[result], 1b\n" \ + : [result] "=&a" (result), [tmp] "=&a" (tmp) \ + : [i] "a" (i), [addr] "a" (v) \ : "memory" \ ); \ } \ @@ -82,14 +82,14 @@ static inline int atomic_##op##_return(int i, atomic_t *v) \ int result; \ \ __asm__ __volatile__( \ - "1: l32ex %1, %3\n" \ - " " #op " %0, %1, %2\n" \ - " s32ex %0, %3\n" \ - " getex %0\n" \ - " beqz %0, 1b\n" \ - " " #op " %0, %1, %2\n" \ - : "=&a" (result), "=&a" (tmp) \ - : "a" (i), "a" (v) \ + "1: l32ex %[tmp], %[addr]\n" \ + " " #op " %[result], %[tmp], %[i]\n" \ + " s32ex %[result], %[addr]\n" \ + " getex %[result]\n" \ + " beqz %[result], 1b\n" \ + " " #op " %[result], %[tmp], %[i]\n" \ + : [result] "=&a" (result), [tmp] "=&a" (tmp) \ + : [i] "a" (i), [addr] "a" (v) \ : "memory" \ ); \ \ @@ -103,13 +103,13 @@ static inline int atomic_fetch_##op(int i, atomic_t *v) \ int result; \ \ __asm__ __volatile__( \ - "1: l32ex %1, %3\n" \ - " " #op " %0, %1, %2\n" \ - " s32ex %0, %3\n" \ - " getex %0\n" \ - " beqz %0, 1b\n" \ - : "=&a" (result), "=&a" (tmp) \ - : "a" (i), "a" (v) \ + "1: l32ex %[tmp], %[addr]\n" \ + " " #op " %[result], %[tmp], %[i]\n" \ + " s32ex %[result], %[addr]\n" \ + " getex %[result]\n" \ + " beqz %[result], 1b\n" \ + : [result] "=&a" (result), [tmp] "=&a" (tmp) \ + : [i] "a" (i), [addr] "a" (v) \ : "memory" \ ); \ \ @@ -124,13 +124,14 @@ static inline void atomic_##op(int i, atomic_t * v) \ int result; \ \ __asm__ __volatile__( \ - "1: l32i %1, %3, 0\n" \ - " wsr %1, scompare1\n" \ - " " #op " %0, %1, %2\n" \ - " s32c1i %0, %3, 0\n" \ - " bne %0, %1, 1b\n" \ - : "=&a" (result), "=&a" (tmp) \ - : "a" (i), "a" (v) \ + "1: l32i %[tmp], %[mem]\n" \ + " wsr %[tmp], scompare1\n" \ + " " #op " %[result], %[tmp], %[i]\n" \ + " s32c1i %[result], %[mem]\n" \ + " bne %[result], %[tmp], 1b\n" \ + : [result] "=&a" (result), [tmp] "=&a" (tmp), \ + [mem] "+m" (*v) \ + : [i] "a" (i) \ : "memory" \ ); \ } \ @@ -142,14 +143,15 @@ static inline int atomic_##op##_return(int i, atomic_t * v) \ int result; \ \ __asm__ __volatile__( \ - "1: l32i %1, %3, 0\n" \ - " wsr %1, scompare1\n" \ - " " #op " %0, %1, %2\n" \ - " s32c1i %0, %3, 0\n" \ - " bne %0, %1, 1b\n" \ - " " #op " %0, %0, %2\n" \ - : "=&a" (result), "=&a" (tmp) \ - : "a" (i), "a" (v) \ + "1: l32i %[tmp], %[mem]\n" \ + " wsr %[tmp], scompare1\n" \ + " " #op " %[result], %[tmp], %[i]\n" \ + " s32c1i %[result], %[mem]\n" \ + " bne %[result], %[tmp], 1b\n" \ + " " #op " %[result], %[result], %[i]\n" \ + : [result] "=&a" (result), [tmp] "=&a" (tmp), \ + [mem] "+m" (*v) \ + : [i] "a" (i) \ : "memory" \ ); \ \ @@ -163,13 +165,14 @@ static inline int atomic_fetch_##op(int i, atomic_t * v) \ int result; \ \ __asm__ __volatile__( \ - "1: l32i %1, %3, 0\n" \ - " wsr %1, scompare1\n" \ - " " #op " %0, %1, %2\n" \ |