diff options
| author | Linus Torvalds <torvalds@linux-foundation.org> | 2022-12-12 11:04:08 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2022-12-12 11:04:08 -0800 |
| commit | 47477c84b8914525b427bccbdcded0cf0086f2a1 (patch) | |
| tree | 6d23dc9da24d9464612aabe593473509c414833e /arch/s390 | |
| parent | 49d07f010c7c6b09ea2c2ebca67b83b38afa5faf (diff) | |
| parent | bb3860cc02c660b409a1e02521b84b1d7d4e84cd (diff) | |
Merge tag 's390-6.2-1' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux
Pull s390 updates from Alexander Gordeev:
- Factor out handle_write() function and simplify 3215 console write
operation
- When 3170 terminal emulator is connected to the 3215 console driver
the boot time could be very long due to limited buffer space or
missing operator input. Add con3215_drop command line parameter and
con3215_drop sysfs attribute file to instruct the kernel drop console
data when such conditions are met
- Fix white space errors in 3215 console driver
- Move enum paiext_mode definition to a header file and rename it to
paievt_mode to indicate this is now used for several events. Rename
PAI_MODE_COUNTER to PAI_MODE_COUNTING to make consistent with
PAI_MODE_SAMPLING
- Simplify the logic of PMU pai_crypto mapped buffer reference counter
and make it consistent with PMU pai_ext
- Rename PMU pai_crypto mapped buffer structure member users to
active_events to make it consistent with PMU pai_ext
- Enable HUGETLB_PAGE_OPTIMIZE_VMEMMAP configuration option. This
results in saving of 12K per 1M hugetlb page (~1.2%) and 32764K per
2G hugetlb page (~1.6%)
- Use generic serial.h, bugs.h, shmparam.h and vga.h header files and
scrap s390-specific versions
- The generic percpu setup code does not expect the s390-like
implementation and emits a warning. To get rid of that warning and
provide sane CPU-to-node and CPU-to-CPU distance mappings implementat
a minimal version of setup_per_cpu_areas()
- Use kstrtobool() instead of strtobool() for re-IPL sysfs device
attributes
- Avoid unnecessary lookup of a pointer to MSI descriptor when setting
IRQ affinity for a PCI device
- Get rid of "an incompatible function type cast" warning by changing
debug_sprintf_format_fn() function prototype so it matches the
debug_format_proc_t function type
- Remove unused info_blk_hdr__pcpus() and get_page_state() functions
- Get rid of clang "unused unused insn cache ops function" warning by
moving s390_insn definition to a private header
- Get rid of clang "unused function" warning by making function
raw3270_state_final() only available if CONFIG_TN3270_CONSOLE is
enabled
- Use kstrobool() to parse sclp_con_drop parameter to make it identical
to the con3215_drop parameter and allow passing values like "yes" and
"true"
- Use sysfs_emit() for all SCLP sysfs show functions, which is the
current standard way to generate output strings
- Make SCLP con_drop sysfs attribute also writable and allow to change
its value during runtime. This makes SCLP console drop handling
consistent with the 3215 device driver
- Virtual and physical addresses are indentical on s390. However, there
is still a confusion when pointers are directly casted to physical
addresses or vice versa. Use correct address converters
virt_to_phys() and phys_to_virt() for s390 channel IO drivers
- Support for power managemant has been removed from s390 since quite
some time. Remove unused power managemant code from the appldata
device driver
- Allow memory tools like KASAN see memory accesses from the checksum
code. Switch to GENERIC_CSUM if KASAN is enabled, just like x86 does
- Add support of ECKD DASDs disks so it could be used as boot and dump
devices
- Follow checkpatch recommendations and use octal values instead of
S_IRUGO and S_IWUSR for dump device attributes in sysfs
- Changes to vx-insn.h do not cause a recompile of C files that use
asm(".include \"asm/vx-insn.h\"\n") magic to access vector
instruction macros from inline assemblies. Add wrapper include header
file to avoid this problem
- Use vector instruction macros instead of byte patterns to increase
register validation routine readability
- The current machine check register validation handling does not take
into account various scenarios and might lead to killing a wrong user
process or potentially ignore corrupted FPU registers. Simplify logic
of the machine check handler and stop the whole machine if the
previous context was kerenel mode. If the previous context was user
mode, kill the current task
- Introduce sclp_emergency_printk() function which can be used to emit
a message in emergency cases. It is supposed to be used in cases
where regular console device drivers may not work anymore, e.g.
unrecoverable machine checks
Keep the early Service-Call Control Block so it can also be used
after initdata has been freed to allow sclp_emergency_printk()
implementation
- In case a system will be stopped because of an unrecoverable machine
check error print the machine check interruption code to give a hint
of what went wrong
- Move storage error checking from the assembly entry code to C in
order to simplify machine check handling. Enter the handler with DAT
turned on, which simplifies the entry code even more
- The machine check extended save areas are allocated using a private
"nmi_save_areas" slab cache which guarantees a required power-of-two
alignment. Get rid of that cache in favour of kmalloc()
* tag 's390-6.2-1' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: (38 commits)
s390/nmi: get rid of private slab cache
s390/nmi: move storage error checking back to C, enter with DAT on
s390/nmi: print machine check interruption code before stopping system
s390/sclp: introduce sclp_emergency_printk()
s390/sclp: keep sclp_early_sccb
s390/nmi: rework register validation handling
s390/nmi: use vector instruction macros instead of byte patterns
s390/vx: add vx-insn.h wrapper include file
s390/ipl: use octal values instead of S_* macros
s390/ipl: add eckd dump support
s390/ipl: add eckd support
vfio/ccw: identify CCW data addresses as physical
vfio/ccw: sort out physical vs virtual pointers usage
s390/checksum: support GENERIC_CSUM, enable it for KASAN
s390/appldata: remove power management callbacks
s390/cio: sort out physical vs virtual pointers usage
s390/sclp: allow to change sclp_console_drop during runtime
s390/sclp: convert to use sysfs_emit()
s390/sclp: use kstrobool() to parse sclp_con_drop parameter
s390/3270: make raw3270_state_final() depend on CONFIG_TN3270_CONSOLE
...
Diffstat (limited to 'arch/s390')
28 files changed, 1309 insertions, 1037 deletions
diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig index 48a11deb502c..7fd08755a1f9 100644 --- a/arch/s390/Kconfig +++ b/arch/s390/Kconfig @@ -26,6 +26,10 @@ config GENERIC_BUG config GENERIC_BUG_RELATIVE_POINTERS def_bool y +config GENERIC_CSUM + bool + default y if KASAN + config GENERIC_LOCKBREAK def_bool y if PREEMPTION @@ -122,6 +126,7 @@ config S390 select ARCH_WANTS_NO_INSTR select ARCH_WANT_DEFAULT_BPF_JIT select ARCH_WANT_IPC_PARSE_VERSION + select ARCH_WANT_HUGETLB_PAGE_OPTIMIZE_VMEMMAP select BUILDTIME_TABLE_SORT select CLONE_BACKWARDS2 select DMA_OPS if PCI @@ -197,6 +202,7 @@ config S390 select HAVE_RSEQ select HAVE_SAMPLE_FTRACE_DIRECT select HAVE_SAMPLE_FTRACE_DIRECT_MULTI + select HAVE_SETUP_PER_CPU_AREA select HAVE_SOFTIRQ_ON_OWN_STACK select HAVE_SYSCALL_TRACEPOINTS select HAVE_VIRT_CPU_ACCOUNTING @@ -208,6 +214,7 @@ config S390 select MMU_GATHER_MERGE_VMAS select MODULES_USE_ELF_RELA select NEED_DMA_MAP_STATE if PCI + select NEED_PER_CPU_EMBED_FIRST_CHUNK select NEED_SG_DMA_LENGTH if PCI select OLD_SIGACTION select OLD_SIGSUSPEND3 diff --git a/arch/s390/appldata/appldata_base.c b/arch/s390/appldata/appldata_base.c index d74a4c7d5df6..c0fd29133f27 100644 --- a/arch/s390/appldata/appldata_base.c +++ b/arch/s390/appldata/appldata_base.c @@ -26,8 +26,6 @@ #include <linux/notifier.h> #include <linux/cpu.h> #include <linux/workqueue.h> -#include <linux/suspend.h> -#include <linux/platform_device.h> #include <asm/appldata.h> #include <asm/vtimer.h> #include <linux/uaccess.h> @@ -44,8 +42,6 @@ #define TOD_MICRO 0x01000 /* nr. of TOD clock units for 1 microsecond */ -static struct platform_device *appldata_pdev; - /* * /proc entries (sysctl) */ @@ -88,7 +84,6 @@ static struct vtimer_list appldata_timer; static DEFINE_SPINLOCK(appldata_timer_lock); static int appldata_interval = APPLDATA_CPU_INTERVAL; static int appldata_timer_active; -static int appldata_timer_suspended = 0; /* * Work queue @@ -412,88 +407,6 @@ void appldata_unregister_ops(struct appldata_ops *ops) /********************** module-ops management <END> **************************/ -/**************************** suspend / resume *******************************/ -static int appldata_freeze(struct device *dev) -{ - struct appldata_ops *ops; - int rc; - struct list_head *lh; - - spin_lock(&appldata_timer_lock); - if (appldata_timer_active) { - __appldata_vtimer_setup(APPLDATA_DEL_TIMER); - appldata_timer_suspended = 1; - } - spin_unlock(&appldata_timer_lock); - - mutex_lock(&appldata_ops_mutex); - list_for_each(lh, &appldata_ops_list) { - ops = list_entry(lh, struct appldata_ops, list); - if (ops->active == 1) { - rc = appldata_diag(ops->record_nr, APPLDATA_STOP_REC, - (unsigned long) ops->data, ops->size, - ops->mod_lvl); - if (rc != 0) - pr_err("Stopping the data collection for %s " - "failed with rc=%d\n", ops->name, rc); - } - } - mutex_unlock(&appldata_ops_mutex); - return 0; -} - -static int appldata_restore(struct device *dev) -{ - struct appldata_ops *ops; - int rc; - struct list_head *lh; - - spin_lock(&appldata_timer_lock); - if (appldata_timer_suspended) { - __appldata_vtimer_setup(APPLDATA_ADD_TIMER); - appldata_timer_suspended = 0; - } - spin_unlock(&appldata_timer_lock); - - mutex_lock(&appldata_ops_mutex); - list_for_each(lh, &appldata_ops_list) { - ops = list_entry(lh, struct appldata_ops, list); - if (ops->active == 1) { - ops->callback(ops->data); // init record - rc = appldata_diag(ops->record_nr, - APPLDATA_START_INTERVAL_REC, - (unsigned long) ops->data, ops->size, - ops->mod_lvl); - if (rc != 0) { - pr_err("Starting the data collection for %s " - "failed with rc=%d\n", ops->name, rc); - } - } - } - mutex_unlock(&appldata_ops_mutex); - return 0; -} - -static int appldata_thaw(struct device *dev) -{ - return appldata_restore(dev); -} - -static const struct dev_pm_ops appldata_pm_ops = { - .freeze = appldata_freeze, - .thaw = appldata_thaw, - .restore = appldata_restore, -}; - -static struct platform_driver appldata_pdrv = { - .driver = { - .name = "appldata", - .pm = &appldata_pm_ops, - }, -}; -/************************* suspend / resume <END> ****************************/ - - /******************************* init / exit *********************************/ /* @@ -503,36 +416,14 @@ static struct platform_driver appldata_pdrv = { */ static int __init appldata_init(void) { - int rc; - init_virt_timer(&appldata_timer); appldata_timer.function = appldata_timer_function; appldata_timer.data = (unsigned long) &appldata_work; - - rc = platform_driver_register(&appldata_pdrv); - if (rc) - return rc; - - appldata_pdev = platform_device_register_simple("appldata", -1, NULL, - 0); - if (IS_ERR(appldata_pdev)) { - rc = PTR_ERR(appldata_pdev); - goto out_driver; - } appldata_wq = alloc_ordered_workqueue("appldata", 0); - if (!appldata_wq) { - rc = -ENOMEM; - goto out_device; - } - + if (!appldata_wq) + return -ENOMEM; appldata_sysctl_header = register_sysctl_table(appldata_dir_table); return 0; - -out_device: - platform_device_unregister(appldata_pdev); -out_driver: - platform_driver_unregister(&appldata_pdrv); - return rc; } __initcall(appldata_init); diff --git a/arch/s390/boot/ipl_parm.c b/arch/s390/boot/ipl_parm.c index ca78d6162245..c1f8f7999fed 100644 --- a/arch/s390/boot/ipl_parm.c +++ b/arch/s390/boot/ipl_parm.c @@ -77,6 +77,9 @@ bool is_ipl_block_dump(void) if (ipl_block.pb0_hdr.pbt == IPL_PBT_NVME && ipl_block.nvme.opt == IPL_PB0_NVME_OPT_DUMP) return true; + if (ipl_block.pb0_hdr.pbt == IPL_PBT_ECKD && + ipl_block.eckd.opt == IPL_PB0_ECKD_OPT_DUMP) + return true; return false; } @@ -108,6 +111,11 @@ static size_t ipl_block_get_ascii_scpdata(char *dest, size_t size, scp_data_len = ipb->nvme.scp_data_len; scp_data = ipb->nvme.scp_data; break; + case IPL_PBT_ECKD: + scp_data_len = ipb->eckd.scp_data_len; + scp_data = ipb->eckd.scp_data; + break; + default: goto out; } @@ -153,6 +161,7 @@ static void append_ipl_block_parm(void) break; case IPL_PBT_FCP: case IPL_PBT_NVME: + case IPL_PBT_ECKD: rc = ipl_block_get_ascii_scpdata( parm, COMMAND_LINE_SIZE - len - 1, &ipl_block); break; diff --git a/arch/s390/hypfs/hypfs_diag.c b/arch/s390/hypfs/hypfs_diag.c index 6511d15ace45..c3be533c4cd3 100644 --- a/arch/s390/hypfs/hypfs_diag.c +++ b/arch/s390/hypfs/hypfs_diag.c @@ -68,14 +68,6 @@ static inline __u8 info_blk_hdr__flags(enum diag204_format type, void *hdr) return ((struct diag204_x_info_blk_hdr *)hdr)->flags; } -static inline __u16 info_blk_hdr__pcpus(enum diag204_format type, void *hdr) -{ - if (type == DIAG204_INFO_SIMPLE) - return ((struct diag204_info_blk_hdr *)hdr)->phys_cpus; - else /* DIAG204_INFO_EXT */ - return ((struct diag204_x_info_blk_hdr *)hdr)->phys_cpus; -} - /* Partition header */ static inline int part_hdr__size(enum diag204_format type) diff --git a/arch/s390/include/asm/bugs.h b/arch/s390/include/asm/bugs.h deleted file mode 100644 index aa42a179be33..000000000000 --- a/arch/s390/include/asm/bugs.h +++ /dev/null @@ -1,21 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -/* - * S390 version - * Copyright IBM Corp. 1999 - * Author(s): Martin Schwidefsky (schwidefsky@de.ibm.com) - * - * Derived from "include/asm-i386/bugs.h" - * Copyright (C) 1994 Linus Torvalds - */ - -/* - * This is included by init/main.c to check for architecture-dependent bugs. - * - * Needs: - * void check_bugs(void); - */ - -static inline void check_bugs(void) -{ - /* s390 has no bugs ... */ -} diff --git a/arch/s390/include/asm/checksum.h b/arch/s390/include/asm/checksum.h index cdd19d326345..d977a3a2f619 100644 --- a/arch/s390/include/asm/checksum.h +++ b/arch/s390/include/asm/checksum.h @@ -12,6 +12,12 @@ #ifndef _S390_CHECKSUM_H #define _S390_CHECKSUM_H +#ifdef CONFIG_GENERIC_CSUM + +#include <asm-generic/checksum.h> + +#else /* CONFIG_GENERIC_CSUM */ + #include <linux/uaccess.h> #include <linux/in6.h> @@ -129,4 +135,5 @@ static inline __sum16 csum_ipv6_magic(const struct in6_addr *saddr, return csum_fold((__force __wsum)(sum >> 32)); } +#endif /* CONFIG_GENERIC_CSUM */ #endif /* _S390_CHECKSUM_H */ diff --git a/arch/s390/include/asm/ipl.h b/arch/s390/include/asm/ipl.h index a405b6bb89fb..b0d00032479d 100644 --- a/arch/s390/include/asm/ipl.h +++ b/arch/s390/include/asm/ipl.h @@ -22,6 +22,7 @@ struct ipl_parameter_block { struct ipl_pb0_common common; struct ipl_pb0_fcp fcp; struct ipl_pb0_ccw ccw; + struct ipl_pb0_eckd eckd; struct ipl_pb0_nvme nvme; char raw[PAGE_SIZE - sizeof(struct ipl_pl_hdr)]; }; @@ -41,6 +42,10 @@ struct ipl_parameter_block { sizeof(struct ipl_pb0_ccw)) #define IPL_BP0_CCW_LEN (sizeof(struct ipl_pb0_ccw)) +#define IPL_BP_ECKD_LEN (sizeof(struct ipl_pl_hdr) + \ + sizeof(struct ipl_pb0_eckd)) +#define IPL_BP0_ECKD_LEN (sizeof(struct ipl_pb0_eckd)) + #define IPL_MAX_SUPPORTED_VERSION (0) #define IPL_RB_CERT_UNKNOWN ((unsigned short)-1) @@ -68,6 +73,8 @@ enum ipl_type { IPL_TYPE_NSS = 16, IPL_TYPE_NVME = 32, IPL_TYPE_NVME_DUMP = 64, + IPL_TYPE_ECKD = 128, + IPL_TYPE_ECKD_DUMP = 256, }; struct ipl_info @@ -79,6 +86,9 @@ struct ipl_info } ccw; struct { struct ccw_dev_id dev_id; + } eckd; + struct { + struct ccw_dev_id dev_id; u64 wwpn; u64 lun; } fcp; @@ -99,6 +109,7 @@ extern void set_os_info_reipl_block(void); static inline bool is_ipl_type_dump(void) { return (ipl_info.type == IPL_TYPE_FCP_DUMP) || + (ipl_info.type == IPL_TYPE_ECKD_DUMP) || (ipl_info.type == IPL_TYPE_NVME_DUMP); } diff --git a/arch/s390/include/asm/pai.h b/arch/s390/include/asm/pai.h index 1a8a6b15d121..7d1888e3dee6 100644 --- a/arch/s390/include/asm/pai.h +++ b/arch/s390/include/asm/pai.h @@ -75,4 +75,10 @@ static __always_inline void pai_kernel_exit(struct pt_regs *regs) WRITE_ONCE(S390_lowcore.ccd, S390_lowcore.ccd & ~PAI_CRYPTO_KERNEL_OFFSET); } +enum paievt_mode { + PAI_MODE_NONE, + PAI_MODE_SAMPLING, + PAI_MODE_COUNTING, +}; + #endif diff --git a/arch/s390/include/asm/sclp.h b/arch/s390/include/asm/sclp.h index 9d4c7f71e070..dac7da88f61f 100644 --- a/arch/s390/include/asm/sclp.h +++ b/arch/s390/include/asm/sclp.h @@ -87,6 +87,7 @@ struct sclp_info { unsigned char has_gisaf : 1; unsigned char has_diag318 : 1; unsigned char has_sipl : 1; + unsigned char has_sipl_eckd : 1; unsigned char has_dirq : 1; unsigned char has_iplcc : 1; unsigned char has_zpci_lsi : 1; @@ -131,6 +132,7 @@ void sclp_early_get_ipl_info(struct sclp_ipl_info *info); void sclp_early_detect(void); void sclp_early_printk(const char *s); void __sclp_early_printk(const char *s, unsigned int len); +void sclp_emergency_printk(const char *s); int sclp_early_get_memsize(unsigned long *mem); int sclp_early_get_hsa_size(unsigned long *hsa_size); diff --git a/arch/s390/include/asm/serial.h b/arch/s390/include/asm/serial.h deleted file mode 100644 index aaf85a69061c..000000000000 --- a/arch/s390/include/asm/serial.h +++ /dev/null @@ -1,7 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -#ifndef _ASM_S390_SERIAL_H -#define _ASM_S390_SERIAL_H - -#define BASE_BAUD 0 - -#endif /* _ASM_S390_SERIAL_H */ diff --git a/arch/s390/include/asm/shmparam.h b/arch/s390/include/asm/shmparam.h deleted file mode 100644 index e75d45649c54..000000000000 --- a/arch/s390/include/asm/shmparam.h +++ /dev/null @@ -1,12 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -/* - * S390 version - * - * Derived from "include/asm-i386/shmparam.h" - */ -#ifndef _ASM_S390_SHMPARAM_H -#define _ASM_S390_SHMPARAM_H - -#define SHMLBA PAGE_SIZE /* attach addr a multiple of this */ - -#endif /* _ASM_S390_SHMPARAM_H */ diff --git a/arch/s390/include/asm/vga.h b/arch/s390/include/asm/vga.h deleted file mode 100644 index 605dc46bac5e..000000000000 --- a/arch/s390/include/asm/vga.h +++ /dev/null @@ -1,7 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -#ifndef _ASM_S390_VGA_H -#define _ASM_S390_VGA_H - -/* Avoid compile errors due to missing asm/vga.h */ - -#endif /* _ASM_S390_VGA_H */ diff --git a/arch/s390/include/asm/vx-insn-asm.h b/arch/s390/include/asm/vx-insn-asm.h new file mode 100644 index 000000000000..360f8b36d962 --- /dev/null +++ b/arch/s390/include/asm/vx-insn-asm.h @@ -0,0 +1,681 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * Support for Vector Instructions + * + * Assembler macros to generate .byte/.word code for particular + * vector instructions that are supported by recent binutils (>= 2.26) only. + * + * Copyright IBM Corp. 2015 + * Author(s): Hendrik Brueckner <brueckner@linux.vnet.ibm.com> + */ + +#ifndef __ASM_S390_VX_INSN_INTERNAL_H +#define __ASM_S390_VX_INSN_INTERNAL_H + +#ifndef __ASM_S390_VX_INSN_H +#error only <asm/vx-insn.h> can be included directly +#endif + +#ifdef __ASSEMBLY__ + +/* Macros to generate vector instruction byte code */ + +/* GR_NUM - Retrieve general-purpose register number + * + * @opd: Operand to store register number + * @r64: String designation register in the format "%rN" + */ +.macro GR_NUM opd gr + \opd = 255 + .ifc \gr,%r0 + \opd = 0 + .endif + .ifc \gr,%r1 + \opd = 1 + .endif + .ifc \gr,%r2 + \opd = 2 + .endif + .ifc \gr,%r3 + \opd = 3 + .endif + .ifc \gr,%r4 + \opd = 4 + .endif + .ifc \gr,%r5 + \opd = 5 + .endif + .ifc \gr,%r6 + \opd = 6 + .endif + .ifc \gr,%r7 + \opd = 7 + .endif + .ifc \gr,%r8 + \opd = 8 + .endif + .ifc \gr,%r9 + \opd = 9 + .endif + .ifc \gr,%r10 + \opd = 10 + .endif + .ifc \gr,%r11 + \opd = 11 + .endif + .ifc \gr,%r12 + \opd = 12 + .endif + .ifc \gr,%r13 + \opd = 13 + .endif + .ifc \gr,%r14 + \opd = 14 + .endif + .ifc \gr,%r15 + \opd = 15 + .endif + .if \opd == 255 + \opd = \gr + .endif +.endm + +/* VX_NUM - Retrieve vector register number + * + * @opd: Operand to store register number + * @vxr: String designation register in the format "%vN" + * + * The vector register number is used for as input number to the + * instruction and, as well as, to compute the RXB field of the + * instruction. + */ +.macro VX_NUM opd vxr + \opd = 255 + .ifc \vxr,%v0 + \opd = 0 + .endif + .ifc \vxr,%v1 + \opd = 1 + .endif + .ifc \vxr,%v2 + \opd = 2 + .endif + .ifc \vxr,%v3 + \opd = 3 + .endif + .ifc \vxr,%v4 + \opd = 4 + .endif + .ifc \vxr,%v5 + \opd = 5 + .endif + .ifc \vxr,%v6 + \opd = 6 + .endif + .ifc \vxr,%v7 + \opd = 7 + .endif + .ifc \vxr,%v8 + \opd = 8 + .endif + .ifc \vxr,%v9 + \opd = 9 + .endif + .ifc \vxr,%v10 + \opd = 10 + .endif + .ifc \vxr,%v11 + \opd = 11 + .endif + .ifc \vxr,%v12 + \opd = 12 + .endif + .ifc \vxr,%v13 + \opd = 13 + .endif + .ifc \vxr,%v14 + \opd = 14 + .endif + .ifc \vxr,%v15 + \opd = 15 + .endif + .ifc \vxr,%v16 + \opd = 16 + .endif + .ifc \vxr,%v17 + \opd = 17 + .endif + .ifc \vxr,%v18 + \opd = 18 + .endif + .ifc \vxr,%v19 + \opd = 19 + .endif + .ifc \vxr,%v20 + \opd = 20 + .endif + .ifc \vxr,%v21 + \opd = 21 + .endif + .ifc \vxr,%v22 + \opd = 22 + .endif + .ifc \vxr,%v23 + \opd = 23 + .endif + .ifc \vxr,%v24 + \opd = 24 + .endif + .ifc \vxr,%v25 + \opd = 25 + .endif + .ifc \vxr,%v26 + \opd = 26 + .endif + .ifc \vxr,%v27 + \opd = 27 + .endif + .ifc \vxr,%v28 + \opd = 28 + .endif + .ifc \vxr,%v29 + \opd = 29 + .endif + .ifc \vxr,%v30 + \opd = 30 + .endif + .ifc \vxr,%v31 + \opd = 31 + .endif + .if \opd == 255 + \opd = \vxr + .endif +.endm + +/* RXB - Compute most significant bit used vector registers + * + * @rxb: Operand to store computed RXB value + * @v1: First vector register designated operand + * @v2: Second vector register designated operand + * @v3: Third vector register designated operand + * @v4: Fourth vector register designated operand + */ +.macro RXB rxb v1 v2=0 v3=0 v4=0 + \rxb = 0 + .if \v1 & 0x10 + \rxb = \rxb | 0x08 + .endif + .if \v2 & 0x10 + \rxb = \rxb | 0x04 + .endif + .if \v3 & 0x10 + \rxb = \rxb | 0x02 + .endif + .if \v4 & 0x10 + \rxb = \rxb | 0x01 + .endif +.endm + +/* MRXB - Generate Element Size Control and RXB value + * + * @m: Element size control + * @v1: First vector register designated operand (for RXB) + * @v2: Second vector register designated operand (for RXB) + * @v3: Third vector register designated operand (for RXB) + * @v4: Fourth vector register designated operand (for RXB) + */ +.macro MRXB m v1 v2=0 v3=0 v4=0 + rxb = 0 + RXB rxb, \v1, \v2, \v3, \v4 + .byte (\m << 4) | rxb +.endm + +/* MRXBOPC - Generate Element Size Control, RXB, and final Opcode fields + * + * @m: Element size control + * @opc: Opcode + * @v1: First vector register designated operand (for RXB) + * @v2: Second vector register designated operand (for RXB) + * @v3: Third vector register designated operand (for RXB) + * @v4: Fourth vector register designated operand (for RXB) + */ +.macro MRXBOPC m opc v1 v2=0 v3=0 v4=0 + MRXB \m, \v1, \v2, \v3, \v4 + .byte \opc +.endm + +/* Vector support instructions */ + +/* VECTOR GENERATE BYTE MASK */ +.macro VGBM vr imm2 + VX_NUM v1, \vr + .word (0xE700 | ((v1&15) << 4)) + .word \imm2 + MRXBOPC 0, 0x44, v1 +.endm +.macro VZERO vxr + VGBM \vxr, 0 +.endm +.macro VONE vxr + VGBM \vxr, 0xFFFF +.endm + +/* VECTOR LOAD VR ELEMENT FROM GR */ +.macro VLVG v, gr, disp, m + VX_NUM v1, \v + GR_NUM b2, "%r0" + GR_NUM r3, \gr + .word 0xE700 | ((v1&15) << 4) | r3 + .word (b2 << 12) | (\disp) + MRXBOPC \m, 0x22, v1 +.endm +.macro VLVGB v, gr, index, base + VLVG \v, \gr, \index, \base, 0 +.endm +.macro VLVGH v, gr, index + VLVG \v, \gr, \index, 1 +.endm +.macro VLVGF v, gr, index + VLVG \v, \gr, \index, 2 +.endm +.macro VLVGG v, gr, index + VLVG \v, \gr, \index, 3 +.endm + +/* VECTOR LOAD REGISTER */ +.macro VLR v1, v2 + VX_NUM v1, \v1 + VX_NUM v2, \v2 + .word 0xE700 | ((v1&15) << 4) | (v2&15) + .word 0 + MRXBOPC 0, 0x56, v1, v2 +.endm + +/* VECTOR LOAD */ +.macro VL v, disp, index="%r0", base + VX_NUM v1, \v + GR_NUM x2, \index + GR_NUM b2, \base + .word 0xE700 | ((v1&15) << 4) | x2 + .word (b2 << 12) | (\disp) + MRXBOPC 0, 0x06, v1 +.endm + +/* VECTOR LOAD ELEMENT */ +.macro VLEx vr1, disp, index="%r0", base, m3, opc + VX_NUM v1, \vr1 + GR_NUM x2, \index + GR_NUM b2, \base + .word 0xE700 | ((v1&15) << 4) | x2 + .word (b2 << 12) | (\disp) + MRXBOPC \m3, \opc, v1 +.endm +.macro VLEB vr1, disp, index="%r0", base, m3 + VLEx \vr1, \disp, \index, \base, \m3, 0x00 +.endm +.macro VLEH vr1, disp, index="%r0", base, m3 + VLEx \vr1, \disp, \index, \base, \m3, 0x01 +.endm +.macro VLEF vr1, disp, index="%r0", base, m3 + VLEx \vr1, \disp, \index, \base, \m3, 0x03 +.endm +.macro VLEG vr1, disp, index="%r0", base, m3 + VLEx \vr1, \disp, \index, \base, \m3, 0x02 +.endm + +/* VECTOR LOAD ELEMENT IMMEDIATE */ +.macro VLEIx vr1, imm2, m3, opc + VX_NUM v1, \vr1 + .word 0xE700 | ((v1&15) << 4) + .word \imm2 + MRXBOPC \m3, \opc, v1 +.endm +.macro VLEIB vr1, imm2, index + VLEIx \vr1, \imm2, \index, 0x40 +.endm +.macro VLEIH vr1, imm2, index + VLEIx \vr1, \imm2, \index, 0x41 +.endm +.macro VLEIF vr1, imm2, index + VLEIx \vr1, \imm2, \index, 0x43 +.endm +.macro VLEIG vr1, imm2, index + VLEIx \vr1, \imm2, \index, 0x42 +.endm + +/* VECTOR LOAD GR FROM VR ELEMENT */ +.macro VLGV gr, vr, disp, base="%r0", m + GR_NUM r1, \gr + GR_NUM b2, \base + VX_NUM v3, \vr + .word 0xE700 | (r1 << 4) | (v3&15) + .word (b2 << 12) | (\disp) + MRXBOPC \m, 0x21, v3 +.endm +.macro VLGVB gr, vr, disp, base="%r0" + VLGV \gr, \vr, \disp, \base, 0 +.endm +.macro VLGVH gr, vr, disp, base="%r0" + VLGV \gr, \vr, \disp, \base, 1 +.endm +.macro VLGVF gr, vr, disp, base="%r0" + VLGV \gr, \vr, \disp, \base, 2 +.endm +.macro VLGVG gr, vr, disp, base="%r0" + VLGV \gr, \vr, \disp, \base, 3 +.endm + +/* VECTOR LOAD MULTIPLE */ +.macro VLM vfrom, vto, disp, base, hint=3 + VX_NUM v1, \vfrom + VX_NUM v3, \vto + GR_NUM b2, \base + .word 0xE700 | ((v1&15) << 4) | (v3&15) + .word (b2 << 12) | (\disp) + MRXBOPC \hint, 0x36, v1, v3 +.endm + +/* VECTOR STORE */ +.macro VST vr1, disp, index="%r0", base + VX_NUM v1, \vr1 + GR_NUM x2, \index + GR_NUM b2, \base + .word 0xE700 | ((v1&15) << 4) | (x2&15) + .word (b2 << 12) | (\disp) + MRXBOPC 0, 0x0E, v1 +.endm + +/* VECTOR STORE MULTIPLE */ +.macro VSTM vfrom, vto, disp, base, hint=3 + VX_NUM v1, \vfrom + VX_NUM v3, \vto + GR_NUM b2, \base + .word 0xE700 | ((v1&15) << 4) | (v3&15) + .word (b2 << 12) | (\disp) + MRXBOPC \hint, 0x3E, v1, v3 +.endm + +/* VECTOR PERMUTE */ +.macro VPERM vr1, vr2, vr3, vr4 + VX_NUM v1, \vr1 + VX_NUM v2, \vr2 + VX_NUM v3, \vr3 + VX_NUM v4, \vr4 + .word 0xE700 | ((v1&15) << 4) | (v2&15) + .word ((v3&15) << 12) + MRXBOPC (v4&15), 0x8C, v1, v2, v3, v4 +.endm + +/* VECTOR UNPACK LOGICAL LOW */ +.macro VUPLL vr1, vr2, m3 + VX_NUM v1, \vr1 + VX_NUM v2, \vr2 + .word 0xE700 | ((v1&15) << 4) | (v2&15) + .word 0x0000 + MRXBOPC \m3, 0xD4, v1, v2 +.endm +.macro VUPLLB vr1, vr2 + VUPLL \vr1, \vr2, 0 +.endm +.macro VUPLLH vr1, vr2 + VUPLL \vr1, \vr2, 1 +.endm +.macro VUPLLF vr1, vr2 + VUPLL \vr1, \vr2, 2 +.endm + +/* VECTOR PERMUTE DOUBLEWORD IMMEDIATE */ +.macro VPDI vr1, vr2, vr3, m4 + VX_NUM v1, \vr1 + VX_NUM v2, \vr2 + VX_NUM v3, \vr3 + .word 0xE700 | ((v1&15) << 4) | (v2&15) + .word ((v3&15) << 12) + MRXBOPC \m4, 0x84, v1, v2, v3 +.endm + +/* VECTOR REPLICATE */ +.macro VREP vr1, vr3, imm2, m4 + VX_NUM v1, \vr1 + VX_NUM v3, \vr3 + .word 0xE700 | ((v1&15) << 4) | (v3&15) + .word \imm2 + MRXBOPC \m4, 0x4D, v1, v3 +.endm +.macro VREPB vr1, vr3, imm2 + VREP \vr1, \vr3, \imm2, 0 +.endm +.macro VREPH vr1, vr3, imm2 + VREP \vr1, \vr3, \imm2, 1 +.endm +.macro VREPF vr1, vr3, imm2 + VREP \vr1, \vr3, \imm2, 2 +.endm +.macro VREPG vr1, vr3, imm2 + VREP \vr1, \vr3, \imm2, 3 +.endm + +/* VECTOR MERGE HIGH */ +.macro VMRH vr1, vr2, vr3, m4 + VX_NUM v1, \vr1 + VX_NUM v2, \vr2 + VX_NUM v3, \vr3 + .word 0xE700 | ((v1&15) << 4) | (v2&15) + .word ((v3&15) << 12) + MRXBOPC \m4, 0x61, v1, v2, v3 +.endm +.macro VMRHB vr1, vr2, vr3 + VMRH \vr1, \vr2, \vr3, 0 +.endm +.macro VMRHH vr1, vr2, vr3 + VMRH \vr1, \vr2, \vr3, 1 +.endm +.macro VMRHF vr1, vr2, vr3 + VMRH \vr1, \vr2, \vr3, 2 +.endm +.macro VMRHG vr1, vr2, vr3 + VMRH \vr1, \vr2, \vr3, 3 +.endm + +/* VECTOR MERGE LOW */ +.macro VMRL vr1, vr2, vr3, m4 + VX_NUM v1, \vr1 + VX_NUM v2, \vr2 + VX_NUM v3, \vr3 + .word 0xE700 | ((v1&15) << 4) | (v2&15) + .word ((v3&15) << 12) + MRXBOPC \m4, 0x60, v1, v2, v3 +.endm +.macro VMRLB vr1, vr2, vr3 + VMRL \vr1, \vr2, \vr3, 0 +.endm +.macro VMRLH vr1, vr2, vr3 + VMRL \vr1, \vr2, \vr3, 1 +.endm +.macro VMRLF vr1, vr2, vr3 + VMRL \vr1, \vr2, \vr3, 2 +.endm +.macro VMRLG vr1, vr2, vr3 + VMRL \vr1, \vr2, \vr3, 3 +.endm + + +/* Vector integer instructions */ + +/* VECTOR AND */ +.macro VN vr1, vr2, vr3 + VX_NUM v1, \vr1 + VX_NUM v2, \vr2 + VX_NUM v3, \vr3 + .word 0xE700 | ((v1&15) << 4) | (v2&15) + .word ((v3&15) << 12) + MRXBOPC 0, 0x68, v1, v2, v3 +.endm + +/* VECTOR EXCLUSIVE OR */ +.macro VX vr1, vr2, vr3 + VX_NUM v1, \vr1 + VX_NUM v2, \vr2 + VX_NUM v3, \vr3 + .word 0xE700 | ((v1&15) << 4) | (v2&15) + .word ((v3&15) << 12) + MRXBOPC 0, 0x6D, v1, v2, v3 +.endm + +/* VECTOR GALOIS FIELD MULTIPLY SUM */ +.macro VGFM vr1, vr2, vr3, m4 + VX_NUM v1, \vr1 + VX_NUM v2, \vr2 + VX_NUM v3, \vr3 + .word 0xE700 | ((v1&15) << 4) | (v2&15) + .word ((v3&15) << 12) + MRXBOPC \m4, 0xB4, v1, v2, v3 +.endm +.macro VGFMB vr1, vr2, vr3 + VGFM \vr1, \vr2, \vr3, 0 +.endm +.macro VGFMH vr1, vr2, vr3 + VGFM \vr1, \vr2, \vr3, 1 +.endm +.macro VGFMF vr1, vr2, vr3 + VGFM \vr1, \vr2, \vr3, 2 +.endm +.macro VGFMG vr1, vr2, vr3 + VGFM \vr1, \vr2, \vr3, 3 +.endm + +/* VECTOR GALOIS FIELD MULTIPLY SUM AND ACCUMULATE */ +.macro VGFMA vr1, vr2, vr3, vr4, m5 + VX_NUM v1, \vr1 + VX_NUM v2, \vr2 + VX_NUM v3, \vr3 + VX_NUM v4, \vr4 + .word 0xE700 | ((v1&15) << 4) | (v2&15) + .word ((v3&15) << 12) | (\m5 << 8) + MRXBOPC (v4&15), 0xBC, v1, v2, v3, v4 +.endm +.macro VGFMAB vr1, vr2, vr3, vr4 + VGFMA \vr1, \vr2, \vr3, \vr4, 0 +.endm +.macro VGFMAH vr1, vr2, vr3, vr4 + VGFMA \vr1, \vr2, \vr3, \vr4, 1 +.endm +.macro VGFMAF vr1, vr2, vr3, vr4 + VGFMA \vr1, \vr2, \vr3, \vr4, 2 +.endm +.macro VGFMAG vr1, vr2, vr3, vr4 + VGFMA \vr1, \vr2, \vr3, \vr4, 3 +.endm + +/* VECTOR SHIFT RIGHT LOGICAL BY BYTE */ +.macro VSRLB vr1, vr2, vr3 + VX_NUM v1, \vr1 + VX_NUM v2, \vr2 + VX_NUM v3, \vr3 + .word 0xE700 | ((v1&15) << 4) | (v2&15) + .word ((v3&15) << 12) + MRXBOPC 0, 0x7D, v1, v2, v3 +.endm + +/* VECTOR REPLICATE IMMEDIATE */ +.macro VREPI vr1, imm2, m3 + VX_NUM v1, \vr1 + .word 0xE700 | ((v1&15) << 4) + .word \imm2 + MRXBOPC \m3, 0x45, v1 +.endm +.macro VREPIB vr1, imm2 + VREPI \vr1, \imm2, 0 +.endm +.macro VREPIH vr1, imm2 + VREPI \vr1, \imm2, 1 +.endm +.macro VREPIF vr1, imm2 + VREPI \vr1, \imm2, 2 +.endm +.macro VREPIG vr1, imm2 + VREP \vr1, \imm2, 3 +.endm + +/* VECTOR ADD */ +.macro VA vr1, vr2, vr3, m4 + VX_NUM v1, \vr1 + VX_NUM v2, \vr2 + VX_NUM v3, \vr3 + .word 0xE700 | ((v1&15) << 4) | (v2&15) + .word ((v3&15) << 12) + MRXBOPC \m4, 0xF3, v1, v2, v3 +.endm +.macro VAB vr1, vr2, vr3 + VA \vr1, \vr2, \vr3, 0 +.endm +.macro VAH vr1, vr2, vr3 + VA \vr1, \vr2, \vr3, 1 +.endm +.macro VAF vr1, vr2, vr3 + VA \vr1, \vr2, \vr3, 2 +.endm +.macro VAG vr1, vr2, vr3 + VA \vr1, \vr2, \vr3, 3 +.endm +.macro VAQ vr1, vr2, vr3 + VA \vr1, \vr2, \vr3, 4 +.endm + +/* VECTOR ELEMENT SHIFT RIGHT ARITHMETIC */ +.macro VESRAV vr1, vr2, vr3, m4 + VX_NUM v1, \vr1 + VX_NUM v2, \vr2 + VX_NUM v3, \vr3 + .word 0xE700 | ((v1&15) << 4) | (v2&15) + .word ((v3&15) << 12) + MRXBOPC \m4, 0x7A, v1, v2, v3 +.endm + +.macro VESRAVB vr1, vr2, vr3 + VESRAV \vr1, \vr2, \vr3, 0 +.endm +.macro VESRAVH vr1, vr2, vr3 + VESRAV \vr1, \vr2, \vr3, 1 +.endm +.macro VESRAVF vr1, vr2, vr3 + VESRAV \vr1, \vr2, \vr3, 2 +.endm +.macro VESRAVG vr1, vr2, vr3 + VESRAV \vr1, \vr2, \vr3, 3 +.endm + +/* VECTOR ELEMENT ROTATE LEFT LOGICAL */ +.macro VERLL vr1, vr3, disp, base="%r0", m4 + VX_NUM v1, \vr1 + VX_NUM v3, \vr3 + GR_NUM b2, \base + .word 0xE700 | ((v1&15) << 4) | (v3&15) + .word (b2 << 12) | (\disp) + MRXBOPC \m4, 0x33, v1, v3 +.endm +.macro VERLLB vr1, vr3, disp, base="%r0" + VERLL \vr1, \vr3, \disp, \base, 0 +.endm +.macro VERLLH vr1, vr3, disp, base="%r0" + VERLL \vr1, \vr3, \disp, \base, 1 +.endm +.macro VERLLF vr1, vr3, disp, base="%r0" + VERLL \vr1, \vr3, \disp, \base, 2 +.endm +.macro VERLLG vr1, vr3, disp, base="%r0" + VERLL \vr1, \vr3, \disp, \base, 3 +.endm + +/* VECTOR SHIFT LEFT DOUBLE BY BYTE */ +.macro VSLDB vr1, vr2, vr3, imm4 + VX_NUM v1, \vr1 + VX_NUM v2, \vr2 + VX_NUM v3, \vr3 + .word 0xE700 | ((v1&15) << 4) | (v2&15) + .word ((v3&15) << 12) | (\imm4) + MRXBOPC 0, 0x77, v1, v2, v3 +.endm + +#endif /* __ASSEMBLY__ */ +#endif /* __ASM_S390_VX_INSN_INTERNAL_H */ diff --git a/arch/s390/include/asm/vx-insn.h b/arch/s390/include/asm/vx-insn.h index 95480ed9149e..8c188f1c6d27 100644 --- a/arch/s390/include/asm/vx-insn.h +++ b/arch/s390/include/asm/vx-insn.h @@ -2,677 +2,18 @@ /* * Support for Vector Instructions * - * Assembler macros to generate .byte/.word code for particular - * vector instructions that are supported by recent binutils (>= 2.26) only. - * - * Copyright IBM Corp. 2015 - * Author(s): Hendrik Brueckner <brueckner@linux.vnet.ibm.com> + * This wrapper header file allows to use the vector instruction macros in + * both assembler files as well as in inline assemblies in C files. */ #ifndef __ASM_S390_VX_INSN_H #define __ASM_S390_VX_INSN_H -#ifdef __ASSEMBLY__ - - -/* Macros to generate vector instruction byte code */ - -/* GR_NUM - Retrieve general-purpose register number - * - * @opd: Operand to store register number - * @r64: String designation register in the format "%rN" - */ -.macro GR_NUM opd gr - \opd = 255 - .ifc \gr,%r0 - \opd = 0 - .endif - .ifc \gr,%r1 - \opd = 1 - .endif - .ifc \gr,%r2 - \opd = 2 - .endif - .ifc \gr,%r3 - \opd = 3 - .endif - .ifc \gr,%r4 - \opd = 4 - .endif - .ifc \gr,%r5 - \opd = 5 - .endif - .ifc \gr,%r6 - \opd = 6 - .endif - .ifc \gr,%r7 - \opd = 7 - .endif - .ifc \gr,%r8 - \opd = 8 - .endif - .ifc \gr,%r9 - \opd = 9 - .endif - .ifc \gr,%r10 - \opd = 10 - .endif - .ifc \gr,%r11 - \opd = 11 - .endif - .ifc \gr,%r12 - \opd = 12 - .endif - .ifc \gr,%r13 - \opd = 13 - .endif - .ifc \gr,%r14 - \opd = 14 - .endif - .ifc \gr,%r15 - \opd = 15 - .endif - .if \opd == 255 - \opd = \gr - .endif -.endm - -/* VX_NUM - Retrieve vector register number - * - * @opd: Operand to store register number - * @vxr: String designation register in the format "%vN" - * - * The vector register number is used for as input number to the - * instruction and, as well as, to compute the RXB field of the - * instruction. - */ -.macro VX_NUM opd vxr - \opd = 255 - .ifc \vxr,%v0 - \opd = 0 - .endif - .ifc \vxr,%v1 - \opd = 1 - .endif - .ifc \vxr,%v2 - \opd = 2 - .endif - .ifc \vxr,%v3 - \opd = 3 - .endif - .ifc \vxr,%v4 - \opd = 4 - .endif - .ifc \vxr,%v5 - \opd = 5 - .endif - .ifc \vxr,%v6 - \opd = 6 - .endif - .ifc \vxr,%v7 - \opd = 7 - .endif - .ifc \vxr,%v8 - \opd = 8 - .endif - .ifc \vxr,%v9 - \opd = 9 - .endif - .ifc \vxr,%v10 - \opd = 10 - .endif - .ifc \vxr,%v11 - \opd = 11 - .endif - .ifc \vxr,%v12 - \opd = 12 - .endif - .ifc \vxr,%v13 - \opd = 13 - .endif - .ifc \vxr,%v14 - \opd = 14 - .endif - .ifc \vxr,%v15 - \opd = 15 - .endif - .ifc \vxr,%v16 - \opd = 16 - .endif - .ifc \vxr,%v17 - \opd = 17 - .endif - .ifc \vxr,%v18 - \opd = 18 - .endif - .ifc \vxr,%v19 - \opd = 19 - .endif - .ifc \vxr,%v20 - \opd = 20 - .endif - .ifc \vxr,%v21 - \opd = 21 - .endif - .ifc \vxr,%v22 - \opd = 22 - .endif - .ifc \vxr,%v23 - \opd = 23 - .endif - .ifc \vxr,%v24 - \opd = 24 - .endif - .ifc \vxr,%v25 - \opd = 25 - .endif - .ifc \vxr,%v26 - \opd = 26 - .endif - .ifc \vxr,%v27 - \opd = 27 - .endif - .ifc \vxr,%v28 - \opd = 28 - .endif - .ifc \vxr,%v29 - \opd = 29 - .endif - .ifc \vxr,%v30 - \opd = 30 - .endif - .ifc \vxr,%v31 - \opd = 31 - .endif - .if \opd == 255 - \opd = \vxr - .endif -.endm - -/* RXB - Compute most significant bit used vector registers - * - * @rxb: Operand to store computed RXB value - * @v1: First vector register designated operand - * @v2: Second vector register designated operand - * @v3: Third vector register designated operand - * @v4: Fourth vector register designated operand - */ -.macro RXB rxb v1 v2=0 v3=0 v4=0 - \rxb = 0 - .if \v1 & 0x10 - \rxb = \rxb | 0x08 - .endif - .if \v2 & 0x10 - \rxb = \rxb | 0x04 - .endif - .if \v3 & 0x10 - \rxb = \rxb | 0x02 - .endif - .if \v4 & 0x10 - \rxb = \rxb | 0x01 - .endif -.endm - -/* MRXB - Generate Element Size Control and RXB value - * - * @m: Element size control - * @v1: First vector register designated operand (for RXB) - * @v2: Second vector register designated operand (for RXB) - * @v3: Third vector register designated operand (for RXB) - * @v4: Fourth vector register designated operand (for RXB) - */ -.macro MRXB m v1 v2=0 v3=0 v4=0 - rxb = 0 - RXB rxb, \v1, \v2, \v3, \v4 - .byte (\m << 4) | rxb -.endm - -/* MRXBOPC - Generate Element Size Control, RXB, and final Opcode fields - * - * @m: Element size control - * @opc: Opcode - * @v1: First vector register designated operand (for RXB) - * @v2: Second vector register designated operand (for RXB) - * @v3: Third vector register designated operand (for RXB) - * @v4: Fourth vector register designated operand (for RXB) - */ -.macro MRXBOPC m opc v1 v2=0 v3=0 v4=0 - MRXB \m, \v1, \v2, \v3, \v4 - .byte \opc -.endm - -/* Vector support instructions */ - -/* VECTOR GENERATE BYTE MASK */ -.macro VGBM vr imm2 - VX_NUM v1, \vr - .word (0xE700 | ((v1&15) << 4)) - .word \imm2 - MRXBOPC 0, 0x44, v1 -.endm -.macro VZERO vxr - VGBM \vxr, 0 -.endm -.macro VONE vxr - VGBM \vxr, 0xFFFF -.endm - -/* VECTOR LOAD VR ELEMENT FROM GR */ -.macro VLVG v, gr, disp, m - VX_NUM v1, \v - GR_NUM b2, "%r0" - GR_NUM r3, \gr - .word 0xE700 | ((v1&15) << 4) | r3 - .word (b2 << 12) | (\disp) - MRXBOPC \m, 0x22, v1 -.endm -.macro VLVGB v, gr, index, base - VLVG \v, \gr, \index, \base, 0 -.endm -.macro VLVGH v, gr, index - VLVG \v, \gr, \index, 1 -.endm -.macro VLVGF v, gr, index - VLVG \v, \gr, \index, 2 -.endm -.macro VLVGG v, gr, index - VLVG \v, \gr, \index, 3 -.endm - -/* VECTOR LOAD REGISTER */ -.macro VLR v1, v2 - VX_NUM v1, \v1 - VX_NUM v2, \v2 - .word 0xE700 | ((v1&15) << 4) | (v2&15) - .word 0 - MRXBOPC 0, 0x56, v1, v2 -.endm - -/* VECTOR LOAD */ -.macro VL v, disp, index="%r0", base - VX_NUM v1, \v - GR_NUM x2, \index - GR_NUM b2, \base - .word 0xE700 | ((v1&15) << 4) | x2 - .word (b2 << 12) | (\disp) - MRXBOPC 0, 0x06, v1 -.endm - -/* VECTOR LOAD ELEMENT */ -.macro VLEx vr1, disp, index="%r0", base, m3, opc - VX_NUM v1, \vr1 - GR_NUM x2, \index - GR_NUM b2, \base - .word 0xE700 | ((v1&15) << 4) | x2 - .word (b2 << 12) | (\disp) - MRXBOPC \m3, \opc, v1 -.endm -.macro VLEB vr1, disp, index="%r0", base, m3 - VLEx \vr1, \disp, \index, \base, \m3, 0x00 -.endm -.macro VLEH vr1, disp, index="%r0", base, m3 - VLEx \vr1, \disp, \index, \base, \m3, 0x01 -.endm -.macro VLEF vr1, disp, index="%r0", base, m3 - VLEx \vr1, \disp, \index, \base, \m3, 0x03 -.endm -.macro VLEG vr1, disp, index="%r0", base, m3 - VLEx \vr1, \disp, \index, \base, \m3, 0x02 -.endm - -/* VECTOR LOAD ELEMENT IMMEDIATE */ -.macro VLEIx vr1, imm2, m3, opc - VX_NUM v1, \vr1 - .word 0xE700 | ((v1&15) << 4) - .word \imm2 - MRXBOPC \m3, \opc, v1 -.endm -.macro VLEIB vr1, imm2, index - VLEIx \vr1, \imm2, \index, 0x40 -.endm -.macro VLEIH vr1, imm2, index - VLEIx \vr1, \imm2, \index, 0x41 -.endm -.macro VLEIF vr1, imm2, index - VLEIx \vr1, \imm2, \index, 0x43 -.endm -.macro VLEIG vr1, imm2, index - VLEIx \vr1, \imm2, \index, 0x42 -.endm - -/* VECTOR LOAD GR FROM VR ELEMENT */ -.macro VLGV gr, vr, disp, base="%r0", m - GR_NUM r1, \gr - GR_NUM b2, \base - VX_NUM v3, \vr - .word 0xE700 | (r1 << 4) | (v3&15) - .word (b2 << 12) | (\disp) - MRXBOPC \m, 0x21, v3 -.endm -.macro VLGVB gr, vr, disp, base="%r0" - VLGV \gr, \vr, \disp, \base, 0 -.endm -.macro VLGVH gr, vr, disp, base="%r0" - VLGV \gr, \vr, \disp, \base, 1 -.endm -.macro VLGVF gr, vr, disp, base="%r0" - VLGV \gr, \vr, \disp, \base, 2 -.endm -.macro VLGVG gr, vr, disp, base="%r0" - VLGV \gr, \vr, \disp, \base, 3 -.endm - -/* VECTOR LOAD MULTIPLE */ -.macro VLM vfrom, vto, disp, base, hint=3 - VX_NUM v1, \vfrom - VX_NUM v3, \vto - GR_NUM b2, \base - .word 0xE700 | ((v1&15) << 4) | (v3&15) - .word (b2 << 12) | (\disp) - MRXBOPC \hint, 0x36, v1, v3 -.endm - -/* VECTOR STORE */ -.macro VST vr1, disp, index="%r0", base - VX_NUM v1, \vr1 - GR_NUM x2, \index - GR_NUM b2, \base - .word 0xE700 | ((v1&15) << 4) | (x2&15) - .word (b2 << 12) | (\disp) - MRXBOPC 0, 0x0E, v1 -.endm - -/* VECTOR STORE MULTIPLE */ -.macro VSTM vfrom, vto, disp, base, hint=3 - VX_NUM v1, \vfrom - VX_NUM v3, \vto - GR_NUM b2, \base - .word 0xE700 | ((v1&15) << 4) | (v3&15) - .word (b2 << 12) | (\disp) - MRXBOPC \hint, 0x3E, v1, v3 -.endm - -/* VECTOR PERMUTE */ -.macro VPERM vr1, vr2, vr3, vr4 - VX_NUM v1, \vr1 - VX_NUM v2, \vr2 - VX_NUM v3, \vr3 - VX_NUM v4, \vr4 - .word 0xE700 | ((v1&15) << 4) | (v2&15) - .word ((v3&15) << 12) - MRXBOPC (v4&15), 0x8C, v1, v2, v3, v4 -.endm - -/* VECTOR UNPACK LOGICAL LOW */ -.macro VUPLL vr1, vr2, m3 - VX_NUM v1, \vr1 - VX_NUM v2, \vr2 - .word 0xE700 | ((v1&15) << 4) | (v2&15) - .word 0x0000 - MRXBOPC \m3, 0xD4, v1, v2 -.endm -.macro VUPLLB vr1, vr2 - VUPLL \vr1, \vr2, 0 -.endm -.macro VUPLLH vr1, vr2 - VUPLL \vr1, \vr2, 1 -.endm -.macro VUPLLF vr1, vr2 - VUPLL \vr1, \vr2, 2 -.endm - -/* VECTOR PERMUTE DOUBLEWORD IMMEDIATE */ -.macro VPDI vr1, vr2, vr3, m4 - VX_NUM v1, \vr1 - VX_NUM v2, \vr2 - VX_NUM v3, \vr3 - .word 0xE700 | ((v1&15) << 4) | (v2&15) - .word ((v3&15) << 12) - MRXBOPC \m4, 0x84, v1, v2, v3 -.endm - -/* VECTOR REPLICATE */ -.macro VREP vr1, vr3, imm2, m4 - VX_NUM v1, \vr1 - VX_NUM v3, \vr3 - .word 0xE700 | ((v1&15) << 4) | (v3&15) - .word \imm2 - MRXBOPC \m4, 0x4D, v1, v3 -.endm -.macro VREPB vr1, vr3, imm2 - VREP \vr1, \vr3, \imm2, 0 -.endm -.macro VREPH vr1, vr3, imm2 - VREP \vr1, \vr3, \imm2, 1 -.endm -.macro VREPF vr1, vr3, imm2 - VREP \vr1, \vr3, \imm2, 2 -.endm -.macro VREPG vr1, vr3, imm2 - VREP \vr1, \vr3, \imm2, 3 -.endm - -/* VECTOR MERGE HIGH */ -.macro VMRH vr1, vr2, vr3, m4 - VX_NUM v1, \vr1 - VX_NUM v2, \vr2 - VX_NUM v3, \vr3 - .word 0xE700 | ((v1&15) << 4) | (v2&15) - .word ((v3&15) << 12) - MRXBOPC \m4, 0x61, v1, v2, v3 -.endm -.macro VMRHB vr1, vr2, vr3 - VMRH \vr1, \vr2, \vr3, 0 -.endm -.macro VMRHH vr1, vr2, vr3 - VMRH \vr1, \vr2, \vr3, 1 -.endm -.macro VMRHF vr1, vr2, vr3 - VMRH \vr1, \vr2, \vr3, 2 -.endm -.macro VMRHG vr1, vr2, vr3 - VMRH \vr1, \vr2, \vr3, 3 -.endm - -/* VECTOR MERGE LOW */ -.macro VMRL vr1, vr2, vr3, m4 - VX_NUM v1, \vr1 - VX_NUM v2, \vr2 - VX_NUM v3, \vr3 - .word 0xE700 | ((v1&15) << 4) | (v2&15) - .word ((v3&15) << 12) - MRXBOPC \m4, 0x60, v1, v2, v3 -.endm -.macro VMRLB vr1, vr2, vr3 - VMRL \vr1, \vr2, \vr3, 0 -.endm -.macro VMRLH vr1, vr2, vr3 - VMRL \vr1, \vr2, \vr3, 1 -.endm -.macro VMRLF vr1, vr2, vr3 - VMRL \vr1, \vr2, \vr3, 2 -.endm -.macro VMRLG vr1, vr2, vr3 - VMRL \vr1, \vr2, \vr3, 3 -.endm - - -/* Vector integer instructions */ - -/* VECTOR AND */ -.macro VN vr1, vr2, vr3 - VX_NUM v1, \vr1 - VX_NUM v2, \vr2 - VX_NUM v3, \vr3 - .word 0xE700 | ((v1&15) << 4) | (v2&15) - .word ((v3&15) << 12) - MRXBOPC 0, 0x68, v1, v2, v3 -.endm - -/* VECTOR EXCLUSIVE OR */ -.macro VX vr1, vr2, vr3 - VX_NUM v1, \vr1 - VX_NUM v2, \vr2 - VX_NUM v3, \vr3 - .word 0xE700 | ((v1&15) << 4) | (v2&15) - .word ((v3&15) << 12) - MRXBOPC 0, 0x6D, v1, v2, v3 -.endm - -/* VECTOR GALOIS FIELD MULTIPLY SUM */ -.macro VGFM vr1, vr2, vr3, m4 - VX_NUM v1, \vr1 - VX_NUM v2, \vr2 - VX_NUM v3, \vr3 - .word 0xE700 | ((v1&15) << 4) | (v2&15) - .word ((v3&15) << 12) - MRXBOPC \m4, 0xB4, v1, v2, v3 -.endm -.macro VGFMB vr1, vr2, vr3 - VGFM \vr1, \vr2, \vr3, 0 -.endm -.macro VGFMH vr1, vr2, vr3 - VGFM \vr1, \vr2, \vr3, 1 -.endm -.macro VGFMF vr1, vr2, vr3 - VGFM \vr1, \vr2, \vr3, 2 -.endm -.macro VGFMG vr1, vr2, vr3 - VGFM \vr1, \vr2, \vr3, 3 -.endm - -/* VECTOR GALOIS FIELD MULTIPLY SUM AND ACCUMULATE */ -.macro VGFMA vr1, vr2, vr3, vr4, m5 - VX_NUM v1, \vr1 - VX_NUM v2, \vr2 - VX_NUM v3, \vr3 - VX_NUM v4, \vr4 - .word 0xE700 | ((v1&15) << 4) | (v2&15) - .word ((v3&15) << 12) | (\m5 << 8) - MRXBOPC (v4&15), 0xBC, v1, v2, v3, v4 -.endm -.macro VGFMAB vr1, vr2, vr3, vr4 - VGFMA \vr1, \vr2, \vr3, \vr4, 0 -.endm -.macro VGFMAH vr1, vr2, vr3, vr4 - VGFMA \vr1, \vr2, \vr3, \vr4, 1 -.endm -.macro VGFMAF vr1, vr2, vr3, vr4 - VGFMA \vr1, \vr2, \vr3, \vr4, 2 -.endm -.macro VGFMAG vr1, vr2, vr3, vr4 - VGFMA \vr1, \vr2, \vr3, \vr4, 3 -.endm - -/* VECTOR SHIFT RIGHT LOGICAL BY BYTE */ -.macro VSRLB vr1, vr2, vr3 - VX_NUM v1, \vr1 - VX_NUM v2, \vr2 - VX_NUM v3, \vr3 - .word 0xE700 | ((v1&15) << 4) | (v2&15) - .word ((v3&15) << 12) - MRXBOPC 0, 0x7D, v1, v2, v3 -.endm - -/* VECTOR REPLICATE IMMEDIATE */ -.macro VREPI vr1, imm2, m3 - VX_NUM v1, \vr1 - .word 0xE700 | ((v1&15) << 4) - .word \imm2 - MRXBOPC \m3, 0x45, v1 -.endm -.macro VREPIB vr1, imm2 - VREPI \vr1, \imm2, 0 -.endm -.macro VREPIH vr1, imm2 - VREPI \vr1, \imm2, 1 -.endm -.macro VREPIF vr1, imm2 - VREPI \vr1, \imm2, 2 -.endm -.macro VREPIG vr1, imm2 - VREP \vr1, \imm2, 3 -.endm - -/* VECTOR ADD */ -.macro VA vr1, vr2, vr3, m4 - VX_NUM v1, \vr1 - VX_NUM v2, \vr2 - VX_NUM v3, \vr3 - .word 0xE700 | ((v1&15) << 4) | (v2&15) - .word ((v3&15) << 12) - MRXBOPC \m4, 0xF3, v1, v2, v3 -.endm -.macro VAB vr1, vr2, vr3 - VA \vr1, \vr2, \vr3, 0 -.endm -.macro VAH vr1, vr2, vr3 - VA \vr1, \vr2, \vr3, 1 -.endm -.macro VAF vr1, vr2, vr3 - VA \vr1, \vr2, \vr3, 2 -.endm -.macro VAG vr1, vr2, vr3 - VA \vr1, \vr2, \vr3, 3 -.endm -.macro VAQ vr1, vr2, vr3 - VA \vr1, \vr2, \vr3, 4 -.endm - -/* VECTOR ELEMENT SHIFT RIGHT ARITHMETIC */ -.macro VESRAV vr1, vr2, vr3, m4 - VX_NUM v1, \vr1 - VX_NUM v2, \vr2 - VX_NUM v3, \vr3 - .word 0xE700 | ((v1&15) << 4) | (v2&15) - .word ((v3&15) << 12) - MRXBOPC \m4, 0x7A, v1, v2, v3 -.endm - -.macro VESRAVB vr1, vr2, vr3 - VESRAV \vr1, \vr2, \vr3, 0 -.endm -.macro VESRAVH vr1, vr2, vr3 - VESRAV \vr1, \vr2, \vr3, 1 -.endm -.macro VESRAVF vr1, vr2, vr3 - VESRAV \vr1, \vr2, \vr3, 2 -.endm -.macro VESRAVG vr1, vr2, vr3 - VESRAV \vr1, \vr2, \vr3, 3 -.endm +#include <asm/vx-insn-asm.h> -/* VECTOR ELEMENT ROTATE LEFT LOGICAL */ -.macro VERLL vr1, vr3, disp, base="%r0", m4 - VX_NUM v1, \vr1 - VX_NUM v3, \vr3 - GR_NUM b2, \base - .word 0xE700 | ((v1&15) << 4) | (v3&15) - .word (b2 << 12) | (\disp) - MRXBOPC \m4, 0x33, v1, v3 -.endm -.macro VERLLB vr1, vr3, disp, base="%r0" - VERLL \vr1, \vr3, \disp, \base, 0 -.endm -.macro VERLLH vr1, vr3, disp, base="%r0" - VERLL \vr1, \vr3, \disp, \base, 1 -.endm -.macro VERLLF vr1, vr3, disp, base="%r0" - VERLL \vr1, \vr3, \disp, \base, 2 -.endm -.macro VERLLG vr1, vr3, disp, base="%r0" - VERLL \vr1, \vr3, \disp, \base, 3 -.endm +#ifndef __ASSEMBLY__ -/* VECTOR SHIFT LEFT DOUBLE BY BYTE */ -.macro VSLDB vr1, vr2, vr3, imm4 - VX_NUM v1, \vr1 - VX_NUM v2, \vr2 - VX_NUM v3, \vr3 - .word 0xE700 | ((v1&15) << 4) | (v2&15) - .word ((v3&15) << 12) | (\imm4) - MRXBOPC 0, 0x77, v1, v2, v3 -.endm +asm(".include \"asm/vx-insn-asm.h\"\n"); -#endif /* __ASSEMBLY__ */ +#endif /* __ASSEMBLY__ */ #endif /* __ASM_S390_VX_INSN_H */ diff --git a/arch/s390/include/uapi/asm/ipl.h b/arch/s390/include/uapi/asm/ipl.h index d1ecd5d722a0..2cd28af50dd4 100644 --- a/arch/s390/include/uapi/asm/ipl.h +++ b/arch/s390/include/uapi/asm/ipl.h @@ -27,6 +27,7 @@ enum ipl_pbt { IPL_PBT_FCP = 0, IPL_PBT_SCP_DATA = 1, IPL_PBT_CCW = 2, + IPL_PBT_ECKD = 3, IPL_PBT_NVME = 4, }; @@ -111,6 +112,34 @@ struct ipl_pb0_ccw { __u8 reserved5[8]; } __packed; +/* IPL Parameter Block 0 for ECKD */ +struct ipl_pb0_eckd { + __u32 len; + __u8 pbt; + __u8 reserved1[3]; + __u32 reserved2[78]; + __u8 opt; + __u8 reserved4[4]; + __u8 reserved5:5; + __u8 ssid:3; + __u16 devno; + __u32 reserved6[5]; + __u32 bootprog; + __u8 reserved7[12]; + struct { + __u16 cyl; + __u8 head; + __u8 record; + __u32 reserved; + } br_chr __packed; + __u32 scp_data_len; + __u8 reserved8[260]; + __u8 scp_data[]; +} __packed; + +#define IPL_PB0_ECKD_OPT_IPL 0x10 +#define IPL_PB0_ECKD_OPT_DUMP 0x20 + #define IPL_PB0_CCW_VM_FLAG_NSS 0x80 #define IPL_PB0_CCW_VM_FLAG_VP 0x40 diff --git a/arch/s390/kernel/debug.c b/arch/s390/kernel/debug.c index d7a82066a638..b376f0377a2c 100644 --- a/arch/s390/kernel/debug.c +++ b/arch/s390/kernel/debug.c @@ -92,7 +92,7 @@ static int debug_input_flush_fn(debug_info_t *id, struct debug_view *view, static int debug_hex_ascii_format_fn(debug_info_t *id, struct debug_view *view, char *out_buf, const char *in_buf); static int debug_sprintf_format_fn(debug_info_t *id, struct debug_view *view, - char *out_buf, debug_sprintf_entry_t *curr_event); + char *out_buf, const char *inbuf); static void debug_areas_swap(debug_info_t *a, debug_info_t *b); static void debug_events_append(debug_info_t *dest, debug_info_t *src); @@ -139,7 +139,7 @@ struct debug_view debug_sprintf_view = { "sprintf", NULL, &debug_dflt_header_fn, - (debug_format_proc_t *)&debug_sprintf_format_fn, + &debug_sprintf_format_fn, NULL, NULL }; @@ -1532,8 +1532,9 @@ EXPORT_SYMBOL(debug_dflt_header_fn); #define DEBUG_SPRINTF_MAX_ARGS 10 static int debug_sprintf_format_fn(debug_info_t *id, struct debug_view *view, - char *out_buf, debug_sprintf_entry_t *curr_event) + char *out_buf, const char *inbuf) { + debug_sprintf_entry_t *curr_event = (debug_sprintf_entry_t *)inbuf; int num_longs, num_used_args = 0, i, rc = 0; int index[DEBUG_SPRINTF_MAX_ARGS]; diff --git a/arch/s390/kernel/entry.S b/arch/s390/kernel/entry.S index d2a1f2f4f5b8..e0d11f3adfcc 100644 --- a/arch/s390/kernel/entry.S +++ b/arch/s390/kernel/entry.S @@ -122,24 +122,6 @@ _LPP_OFFSET = __LC_LPP "jnz .+8; .insn rrf,0xb2e80000,0,0,13,0", 82 .endm - /* - * The CHKSTG macro jumps to the provided label in case the - * machine check interruption code reports one of unrecoverable - * storage errors: - * - Storage error uncorrected - * - Storage key error uncorrected - * - Storage degradation with Failing-storage-address validity - */ - .macro CHKSTG errlabel - TSTMSK __LC_MCCK_CODE,(MCCK_CODE_STG_ERROR|MCCK_CODE_STG_KEY_ERROR) - jnz \errlabel - TSTMSK __LC_MCCK_CODE,MCCK_CODE_STG_DEGRAD - jz .Loklabel\@ - TSTMSK __LC_MCCK_CODE,MCCK_CODE_STG_FAIL_ADDR - jnz \errlabel -.Loklabel\@: - .endm - #if IS_ENABLED(CONFIG_KVM) /* * The OUTSIDE macro jumps to the provided label in case the value @@ -546,26 +528,18 @@ ENTRY(mcck_int_handler) 3: TSTMSK __LC_MCCK_CODE,MCCK_CODE_PSW_MWP_VALID jno .Lmcck_panic tmhh %r8,0x0001 # interrupting from user ? - jnz 6f + jnz .Lmcck_user TSTMSK __LC_MCCK_CODE,MCCK_CODE_PSW_IA_VALID jno .Lmcck_panic #if IS_ENABLED(CONFIG_KVM) - OUTSIDE %r9,.Lsie_gmap,.Lsie_done,6f + OUTSIDE %r9,.Lsie_gmap,.Lsie_done,.Lmcck_stack OUTSIDE %r9,.Lsie_entry,.Lsie_leave,4f oi __LC_CPU_FLAGS+7, _CIF_MCCK_GUEST - j 5f -4: CHKSTG .Lmcck_panic -5: larl %r14,.Lstosm_tmp - stosm 0(%r14),0x04 # turn dat on, keep irqs off - BPENTER __SF_SIE_FLAGS(%r15),(_TIF_ISOLATE_BP|_TIF_ISOLATE_BP_GUEST) +4: BPENTER __SF_SIE_FLAGS(%r15),(_TIF_ISOLATE_BP|_TIF_ISOLATE_BP_GUEST) SIEEXIT j .Lmcck_stack #endif -6: CHKSTG .Lmcck_panic - larl %r14,.Lstosm_tmp - stosm 0(%r14),0x04 # turn dat on, keep irqs off - tmhh %r8,0x0001 # interrupting from user ? - jz .Lmcck_stack +.Lmcck_user: BPENTER __TI_flags(%r12),_TIF_ISOLATE_BP .Lmcck_stack: lg %r15,__LC_MCCK_STACK diff --git a/arch/s390/kernel/fpu.c b/arch/s390/kernel/fpu.c index d864c9a325e2..4666b29ac8a1 100644 --- a/arch/s390/kernel/fpu.c +++ b/arch/s390/kernel/fpu.c @@ -10,8 +10,7 @@ #include <linux/sched.h> #include <asm/fpu/types.h> #include <asm/fpu/api.h> - -asm(".include \"asm/vx-insn.h\"\n"); +#include <asm/vx-insn.h> void __kernel_fpu_begin(struct kernel_fpu *state, u32 flags) { diff --git a/arch/s390/kernel/ipl.c b/arch/s390/kernel/ipl.c index 325cbf69ebbd..fbd646dbf440 100644 --- a/arch/s390/kernel/ipl.c +++ b/arch/s390/kernel/ipl.c @@ -12,6 +12,7 @@ #include <linux/init.h> #include <linux/device.h> #include <linux/delay.h> +#include <linux/kstrtox.h> #include <linux/panic_notifier.h> #include <linux/reboot.h> #include <linux/ctype.h> @@ -39,6 +40,8 @@ #define IPL_UNKNOWN_STR "unknown" #define IPL_CCW_STR "ccw" +#define IPL_ECKD_STR "eckd" +#define IPL_ECKD_DUMP_STR "eckd_dump" #define IPL_FCP_STR "fcp" #define IPL_FCP_DUMP_STR "fcp_dump" #define IPL_NVME_STR "nvme" @@ -46,6 +49,7 @@ #define IPL_NSS_STR "nss" #define DUMP_CCW_STR "ccw" +#define DUMP_ECKD_STR "eckd" #define DUMP_FCP_STR "fcp" #define DUMP_NVME_STR "nvme" #define DUMP_NONE_STR "none" @@ -92,6 +96,10 @@ static char *ipl_type_str(enum ipl_type type) switch (type) { case IPL_TYPE_CCW: return IPL_CCW_STR; + case IPL_TYPE_ECKD: + return IPL_ECKD_STR; + case IPL_TYPE_ECKD_DUMP: + return IPL_ECKD_DUMP_STR; case IPL_TYPE_FCP: return IPL_FCP_STR; case IPL_TYPE_FCP_DUMP: @@ -113,6 +121,7 @@ enum dump_type { DUMP_TYPE_CCW = 2, DUMP_TYPE_FCP = 4, DUMP_TYPE_NVME = 8, + DUMP_TYPE_ECKD = 16, }; static char *dump_type_str(enum dump_type type) @@ -122,6 +131,8 @@ static char *dump_type_str(enum dump_type type) return DUMP_NONE_STR; case DUMP_TYPE_CCW: return DUMP_CCW_STR; + case DUMP_TYPE_ECKD: + return DUMP_ECKD_STR; case DUMP_TYPE_FCP: return DUMP_FCP_STR; case DUMP_TYPE_NVME: @@ -147,6 +158,7 @@ static enum ipl_type reipl_type = IPL_TYPE_UNKNOWN; static struct ipl_parameter_block *reipl_block_fcp; static struct ipl_parameter_block *reipl_block_nvme; static struct ipl_parameter_block *reipl_block_ccw; +static struct ipl_parameter_block *reipl_block_eckd; static struct ipl_parameter_block *reipl_block_nss; static struct ipl_parameter_block *reipl_block_actual; @@ -155,12 +167,14 @@ static enum dump_type dump_type = DUMP_TYPE_NONE; static struct ipl_parameter_block *dump_block_fcp; static struct ipl_parameter_block *dump_block_nvme; static struct ipl_parameter_block *dump_block_ccw; +static struct ipl_parameter_block *dump_block_eckd; static struct sclp_ipl_info sclp_ipl_info; static bool reipl_nvme_clear; static bool reipl_fcp_clear; static bool reipl_ccw_clear; +static bool reipl_eckd_clear; static inline int __diag308(unsigned long subcode, void *addr) { @@ -218,14 +232,14 @@ IPL_ATTR_SHOW_FN(_prefix, _name, "0.%x.%04x\n", \ _ipl_blk.ssid, _ipl_blk.devno); \ IPL_ATTR_CCW_STORE_FN(_prefix, _name, _ipl_blk); \ static struct kobj_attribute sys_##_prefix##_##_name##_attr = \ - __ATTR(_name, (S_IRUGO | S_IWUSR), \ + __ATTR(_name, 0644, \ sys_##_prefix##_##_name##_show, \ sys_##_prefix##_##_name##_store) \ #define DEFINE_IPL_ATTR_RO(_prefix, _name, _format, _value) \ IPL_ATTR_SHOW_FN(_prefix, _name, _format, _value) \ static struct kobj_attribute sys_##_prefix##_##_name##_attr = \ - __ATTR(_name, S_IRUGO, sys_##_prefix##_##_name##_show, NULL) + __ATTR(_name, 0444, sys_##_prefix##_##_name##_show, NULL) #define DEFINE_IPL_ATTR_RW(_prefix, _name, _fmt_out, _fmt_in, _value) \ IPL_ATTR_SHOW_FN(_prefix, _name, _fmt_out, (unsigned long long) _value) \ @@ -240,7 +254,7 @@ static ssize_t sys_##_prefix##_##_name##_store(struct kobject *kobj, \ return len; \ } \ static struct kobj_attribute sys_##_prefix##_##_name##_attr = \ - __ATTR(_name,(S_IRUGO | S_IWUSR), \ + __ATTR(_name, 0644, \ sys_##_prefix##_##_name##_show, \ sys_##_prefix##_##_name##_store) @@ -255,7 +269,7 @@ static ssize_t sys_##_prefix##_##_name##_store(struct kobject *kobj, \ return len; \ } \ static struct kobj_attribute sys_##_prefix##_##_name##_attr = \ - __ATTR(_name,(S_IRUGO | S_IWUSR), \ + __ATTR(_name, 0644, \ sys_##_prefix##_##_name##_show, \ sys_##_prefix##_##_name##_store) @@ -281,6 +295,11 @@ static __init enum ipl_type get_ipl_type(void) return IPL_TYPE_NVME_DUMP; else return IPL_TYPE_NVME; + case IPL_PBT_ECKD: + if (ipl_block.eckd.opt == IPL_PB0_ECKD_OPT_DUMP) + return IPL_TYPE_ECKD_DUMP; + else + return IPL_TYPE_ECKD; } return IPL_TYPE_UNKNOWN; } @@ -325,7 +344,7 @@ static ssize_t ipl_vm_parm_show(struct kobject *kobj, } static struct kobj_attribute sys_ipl_vm_parm_attr = - __ATTR(parm, S_IRUGO, ipl_vm_parm_show, NULL); + __ATTR(parm, 0444, ipl_vm_parm_show, NULL); static ssize_t sys_ipl_device_show(struct kobject *kobj, struct kobj_attribute *attr, char *page) @@ -334,6 +353,10 @@ static ssize_t sys_ipl_device_show(struct kobject *kobj, case IPL_TYPE_CCW: return sprintf(page, "0.%x.%04x\n", ipl_block.ccw.ssid, ipl_block.ccw.devno); + case IPL_TYPE_ECKD: + case IPL_TYPE_ECKD_DUMP: + return sprintf(page, "0.%x.%04x\n", ipl_block.eckd.ssid, + ipl_block.eckd.devno); case IPL_TYPE_FCP: case IPL_TYPE_FCP_DUMP: return sprintf(page, "0.0.%04x\n", ipl_block.fcp.devno); @@ -346,7 +369,7 @@ static ssize_t sys_ipl_device_show(struct kobject *kobj, } static struct kobj_attribute sys_ipl_device_attr = - __ATTR(device, S_IRUGO, sys_ipl_device_show, NULL); + __ATTR(device, 0444, sys_ipl_device_show, NULL); static ssize_t ipl_parameter_read(struct file *filp, struct kobject *kobj, struct bin_attribute *attr, char *buf, @@ -356,7 +379,7 @@ static ssize_t ipl_parameter_read(struct file *filp, struct kobject *kobj, ipl_block.hdr.len); } static struct bin_attribute ipl_parameter_attr = - __BIN_ATTR(binary_parameter, S_IRUGO, ipl_parameter_read, NULL, + __BIN_ATTR(binary_parameter, 0444, ipl_parameter_read, NULL, PAGE_SIZE); static ssize_t ipl_scp_data_read(struct file *filp, struct kobject *kobj, @@ -379,11 +402,24 @@ static ssize_t ipl_nvme_scp_data_read(struct file *filp, struct kobject *kobj, return memory_read_from_buffer(buf, count, &off, scp_data, size); } +static ssize_t ipl_eckd_scp_data_read(struct file *filp, struct kobject *kobj, + struct bin_attribute *attr, char *buf, + loff_t off, size_t count) +{ + unsigned int size = ipl_block.eckd.scp_data_len; + void *scp_data = &ipl_block.eckd.scp_data; + + return memory_read_from_buffer(buf, count, &off, scp_data, size); +} + static struct bin_attribute ipl_scp_data_attr = - __BIN_ATTR(scp_data, S_IRUGO, ipl_scp_data_read, NULL, PAGE_SIZE); + __BIN_ATTR(scp_data, 0444, ipl_scp_data_read, NULL, PAGE_SIZE); static struct bin_attribute ipl_nvme_scp_data_attr = - __BIN_ATTR(scp_data, S_IRUGO, ipl_nvme_scp_data_read, NULL, PAGE_SIZE); + __BIN_ATTR(scp_data, 0444, ipl_nvme_scp_data_read, NULL, PAGE_SIZE); + +static struct bin_attribute ipl_eckd_scp_data_attr = + __BIN_ATTR(scp_data, 0444, ipl_eckd_scp_data_read, NULL, PAGE_SIZE); static struct bin_attribute *ipl_fcp_bin_attrs[] = { &ipl_parameter_attr, @@ -397,6 +433,12 @@ static struct bin_attribute *ipl_nvme_bin_attrs[] = { NULL, }; +static struct bin_attribute *ipl_eckd_bin_attrs[] = { + &ipl_parameter_attr, + &ipl_eckd_scp_data_attr, + NULL, +}; + /* FCP ipl device attributes */ DEFINE_IPL_ATTR_RO(ipl_fcp, wwpn, "0x%016llx\n", @@ -418,6 +460,84 @@ DEFINE_IPL_ATTR_RO(ipl_nvme, bootprog, "%lld\n", DEFINE_IPL_ATTR_RO(ipl_nvme, br_lba, "%lld\n", (unsigned long long)ipl_block.nvme.br_lba); +/* ECKD ipl device attributes */ +DEFINE_IPL_ATTR_RO(ipl_eckd, bootprog, "%lld\n", + (unsigned long long)ipl_block.eckd.bootprog); + +#define IPL_ATTR_BR_CHR_SHOW_FN(_name, _ipb) \ +static ssize_t eckd_##_name##_br_chr_show(struct kobject *kobj, \ + struct kobj_attribute *attr, \ + char *buf) \ +{ \ + struct ipl_pb0_eckd *ipb = &(_ipb); \ + \ + if (!ipb->br_chr.cyl && \ + !ipb->br_chr.head && \ + !ipb->br_chr.record) \ + return sprintf(buf, "auto\n"); \ + \ + return sprintf(buf, "0x%x,0x%x,0x%x\n", \ + ipb->br_chr.cyl, \ + ipb->br_chr.head, \ + ipb->br_chr.record); \ +} + +#define IPL_ATTR_BR_CHR_STORE_FN(_name, _ipb) \ +static ssize_t eckd_##_name##_br_chr_store(struct kobject *kobj, \ + struct kobj_attribute *attr, \ + const char *buf, size_t len) \ +{ \ + struct ipl_pb0_eckd *ipb = &(_ipb); \ + unsigned long args[3] = { 0 }; \ + char *p, *p1, *tmp = NULL; \ + int i, rc; \ + \ + if (!strncmp(buf, "auto", 4)) \ + goto out; \ + \ + tmp = kstrdup(buf, GFP_KERNEL); \ + p = tmp; \ + for (i = 0; i < 3; i++) { \ + p1 = strsep(&p, ", "); \ + if (!p1) { \ + rc = -EINVAL; \ + goto err; \ + } \ + rc = kstrtoul(p1, 0, args + i); \ + if (rc) \ + goto err; \ + } \ + \ + rc = -EINVAL; \ + if (i != 3) \ + goto err; \ + \ + if ((args[0] || args[1]) && !args[2]) \ + goto err; \ + \ + if (args[0] > UINT_MAX || args[1] > 255 || args[2] > 255) \ + goto err; \ + \ +out: \ + ipb->br_chr.cyl = args[0]; \ + ipb->br_chr.head = args[1]; \ + ipb->br_chr.record = args[2]; \ + rc = len; \ +err: \ + kfree(tmp); \ + return rc; \ +} + +IPL_ATTR_BR_CHR_SHOW_FN(ipl, ipl_block.eckd); +static struct kobj_attribute sys_ipl_eckd_br_chr_attr = + __ATTR(br_chr, 0644, eckd_ipl_br_chr_show, NULL); + +IPL_ATTR_BR_CHR_SHOW_FN(reipl, reipl_block_eckd->eckd); +IPL_ATTR_BR_CHR_STORE_FN(reipl, reipl_block_eckd->eckd); + +static struct kobj_attribute sys_reipl_eckd_br_chr_attr = + __ATTR(br_chr, 0644, eckd_reipl_br_chr_show, eckd_reipl_br_chr_store); + static ssize_t ipl_ccw_loadparm_show(struct kobject *kobj, struct kobj_attribute *attr, char *page) { @@ -469,6 +589,20 @@ static struct attribute_group ipl_nvme_attr_group = { .bin_attrs = ipl_nvme_bin_attrs, }; +static struct attribute *ipl_eckd_attrs[] = { + &sys_ipl_type_attr.attr, + &sys_ipl_eckd_bootprog_attr.attr, + &sys_ipl_eckd_br_chr_attr.attr, + &sys_ipl_device_attr.attr, + &sys_ipl_secure_attr.attr, + &sys_ipl_has_secure_attr.attr, + NULL, +}; + +static struct attribute_group ipl_eckd_attr_group = { + .attrs = ipl_eckd_attrs, + .bin_attrs = ipl_eckd_bin_attrs, +}; /* CCW ipl device attributes */ @@ -541,6 +675,9 @@ static int __init ipl_init(void) rc = sysfs_create_group(&ipl_kset->kobj, &ipl_ccw_attr_group_lpar); break; + case IPL_TYPE_ECKD: + rc = sysfs_create_group(&ipl_kset->kobj, &ipl_eckd_attr_group); + break; case IPL_TYPE_FCP: case IPL_TYPE_FCP_DUMP: rc = sysfs_create_group(&ipl_kset->kobj, &ipl_fcp_attr_group); @@ -642,11 +779,11 @@ static ssize_t reipl_ccw_vmparm_store(struct kobject *kobj, } static struct kobj_attribute sys_reipl_nss_vmparm_attr = - __ATTR(parm, S_IRUGO | S_IWUSR, reipl_nss_vmparm_show, - reipl_nss_vmparm_store); + __ATTR(parm, 0644, reipl_nss_vmparm_show, + reipl_nss_vmparm_store); static struct kobj_attribute sys_reipl_ccw_vmparm_attr = - __ATTR(parm, S_IRUGO | S_IWUSR, reipl_ccw_vmparm_show, - reipl_ccw_vmparm_store); + __ATTR(parm, 0644, reipl_ccw_vmparm_show, + reipl_ccw_vmparm_store); /* FCP reipl device attributes */ @@ -686,7 +823,7 @@ static ssize_t reipl_fcp_scpdata_write(struct file *filp, struct kobject *kobj, return count; } static struct bin_attribute sys_reipl_fcp_scp_data_attr = - __BIN_ATTR(scp_data, (S_IRUGO | S_IWUSR), reipl_fcp_scpdata_read, + __BIN_ATTR(scp_data, 0644, reipl_fcp_scpdata_read, reipl_fcp_scpdata_write, DIAG308_SCPDATA_SIZE); static struct bin_attribute *reipl_fcp_bin_attrs[] = { @@ -766,8 +903,8 @@ static ssize_t reipl_fcp_loadparm_store(struct kobject *kobj, } static struct kobj_attribute sys_reipl_fcp_loadparm_attr = - __ATTR(loadparm, S_IRUGO | S_IWUSR, reipl_fcp_loadparm_show, - reipl_fcp_loadparm_store); + __ATTR(loadparm, 0644, reipl_fcp_loadparm_show, + reipl_fcp_loadparm_store); static ssize_t reipl_fcp_clear_show(struct kobject *kobj, struct kobj_attribute *attr, char *page) @@ -779,7 +916,7 @@ static ssize_t reipl_fcp_clear_store(struct kobject *kobj, struct kobj_attribute *attr, const char *buf, size_t len) { - if (strtobool(buf, &reipl_fcp_clear) < 0) + if (kstrtobool(buf, &reipl_fcp_clear) < 0) return -EINVAL; return len; } @@ -840,7 +977,7 @@ static ssize_t reipl_nvme_scpdata_write(struct file *filp, struct kobject *kobj, } static struct bin_attribute sys_reipl_nvme_scp_data_attr = - __BIN_ATTR(scp_data, (S_IRUGO | S_IWUSR), reipl_nvme_scpdata_read, + __BIN_ATTR(scp_data, 0644, reipl_nvme_scpdata_read, reipl_nvme_scpdata_write, DIAG308_SCPDATA_SIZE); static struct bin_attribute *reipl_nvme_bin_attrs[] = { @@ -872,8 +1009,8 @@ static ssize_t reipl_nvme_loadparm_store(struct kobject *kobj, } static struct kobj_attribute sys_reipl_nvme_loadparm_attr = - __ATTR(loadparm, S_IRUGO | S_IWUSR, reipl_nvme_loadparm_show, - reipl_nvme_loadparm_store); + __ATTR(loadparm, 0644, reipl_nvme_loadparm_show, + reipl_nvme_loadparm_store); static struct attribute *reipl_nvme_attrs[] = { &sys_reipl_nvme_fid_attr.attr, @@ -899,7 +1036,7 @@ static ssize_t reipl_nvme_clear_store(struct kobject *kobj, struct kobj_attribute *attr, const char *buf, size_t len) { - if (strtobool(buf, &reipl_nvme_clear) < 0) + if (kstrtobool(buf, &reipl_nvme_clear) < 0) return -EINVAL; return len; } @@ -939,8 +1076,8 @@ static ssize_t reipl_ccw_loadparm_store(struct kobject *kobj, } static struct kobj_attribute sys_reipl_ccw_loadparm_attr = - __ATTR(loadparm, S_IRUGO | S_IWUSR, reipl_ccw_loadparm_show, - reipl_ccw_loadparm_store); + __ATTR(loadparm, 0644, reipl_ccw_loadparm_show, + reipl_ccw_loadparm_store); static ssize_t reipl_ccw_clear_show(struct kobject *kobj, struct kobj_attribute *attr, char *page) @@ -952,7 +1089,7 @@ static ssize_t reipl_ccw_clear_store(struct kobject *kobj, struct kobj_attribute *attr, const char *buf, size_t len) { - if (strtobool(buf, &reipl_ccw_clear) < 0) + if (kstrtobool(buf, &reipl_ccw_clear) < 0) return -EINVAL; return len; } @@ -985,6 +1122,85 @@ static struct attribute_group reipl_ccw_attr_group_lpar = { .attrs = reipl_ccw_attrs_lpar, }; +/* ECKD reipl device attributes */ + +static ssize_t reipl_eckd_scpdata_read(struct file *filp, struct kobject *kobj, + struct bin_attribute *attr, + char *buf, loff_t off, size_t count) +{ + size_t size = reipl_block_eckd->eckd.scp_data_len; + void *scp_data = reipl_block_eckd->eckd.scp_data; + + return memory_read_from_buffer(buf, count, &off, scp_data, size); +} + +static ssize_t reipl_eckd_scpdata_write(struct file *filp, struct kobject *kobj, + struct bin_attribute *attr, + char *buf, loff_t off, size_t count) +{ + size_t scpdata_len = count; + size_t padding; + + if (off) + return -EINVAL; + + memcpy(reipl_block_eckd->eckd.scp_data, buf, count); + if (scpdata_len % 8) { + padding = 8 - (scpdata_len % 8); + memset(reipl_block_eckd->eckd.scp_data + scpdata_len, + 0, padding); + scpdata_len += padding; + } + + reipl_block_eckd->hdr.len = IPL_BP_ECKD_LEN + scpdata_len; + reipl_block_eckd->eckd.len = IPL_BP0_ECKD_LEN + scpdata_len; + reipl_block_eckd->eckd.scp_data_len = scpdata_len; + + return count; +} + +static struct bin_attribute sys_reipl_eckd_scp_data_attr = + __BIN_ATTR(scp_data, 0644, reipl_eckd_scpdata_read, + reipl_eckd_scpdata_write, DIAG308_SCPDATA_SIZE); + +static struct bin_attribute *reipl_eckd_bin_attrs[] = { + &sys_reipl_eckd_scp_data_attr, + NULL, +}; + +DEFINE_IPL_CCW_ATTR_RW(reipl_eckd, device, reipl_block_eckd->eckd); +DEFINE_IPL_ATTR_RW(reipl_eckd, bootprog, "%lld\n", "%lld\n", + reipl_block_eckd->eckd.bootprog); + +static struct attribute *reipl_eckd_attrs[] = { + &sys_reipl_eckd_device_attr.attr, + &sys_reipl_eckd_bootprog_attr.attr, + &sys_reipl_eckd_br_chr_attr.attr, + NULL, +}; + +static struct attribute_group reipl_eckd_attr_group = { + .attrs = reipl_eckd_attrs, + .bin_attrs = reipl_eckd_bin_attrs +}; + +static ssize_t reipl_eckd_clear_show(struct kobject *kobj, + struct kobj_attribute *attr, char *page) +{ + return sprintf(page, "%u\n", reipl_eckd_clear); +} + +static ssize_t reipl_eckd_clear_store(struct kobject *kobj, + struct kobj_attribute *attr, + const char *buf, size_t len) +{ + if (strtobool(buf, &reipl_eckd_clear) < 0) + return -EINVAL; + return len; +} + +static struct kobj_attribute sys_reipl_eckd_clear_attr = + __ATTR(clear, 0644, reipl_eckd_clear_show, reipl_eckd_clear_store); /* NSS reipl device attributes */ static void reipl_get_ascii_nss_name(char *dst, @@ -1032,12 +1248,12 @@ static ssize_t reipl_nss_name_store(struct kobject *kobj, } static struct kobj_attribute sys_reipl_nss_name_attr = - __ATTR(name, S_IRUGO | S_IWUSR, reipl_nss_name_show, - reipl_nss_name_store); + __ATTR(name, 0644, reipl_nss_name_show, + reipl_nss_name_store); static struct kobj_attribute sys_reipl_nss_loadparm_attr = - __ATTR(loadparm, S_IRUGO | S_IWUSR, reipl_nss_loadparm_show, - reipl_nss_loadparm_store); + __ATTR(loadparm, 0644, reipl_nss_loadparm_show, + reipl_nss_loadparm_store); static struct attribute *reipl_nss_attrs[] = { &sys_reipl_nss_name_attr.attr, @@ -1068,6 +1284,9 @@ static int reipl_set_type(enum ipl_type type) case IPL_TYPE_CCW: reipl_block_actual = reipl_block_ccw; break; + case IPL_TYPE_ECKD: + reipl_block_actual = reipl_block_eckd; + break; case IPL_TYPE_FCP: reipl_block_actual = reipl_block_fcp; break; @@ -1098,6 +1317,8 @@ static ssize_t reipl_type_store(struct kobject *kobj, if (strncmp(buf, IPL_CCW_STR, strlen(IPL_CCW_STR)) == 0) rc = reipl_set_type(IPL_TYPE_CCW); + else if (strncmp(buf, IPL_ECKD_STR, strlen(IPL_ECKD_STR)) == 0) + rc = reipl_set_type(IPL_TYPE_ECKD); else if (strncmp(buf, IPL_FCP_STR, strlen(IPL_FCP_STR)) == 0) rc = reipl_set_type(IPL_TYPE_FCP); else if (strncmp(buf, IPL_NVME_STR, strlen(IPL_NVME_STR)) == 0) @@ -1113,6 +1334,7 @@ static struct kobj_attribute reipl_type_attr = static struct kset *reipl_kset; static struct kset *reipl_fcp_kset; static struct kset *reipl_nvme_kset; +static struct kset *reipl_eckd_kset; static void __reipl_run(void *unused) { @@ -1124,6 +1346,13 @@ static void __reipl_run(void *unused) else diag308(DIAG308_LOAD_NORMAL_DUMP, NULL); break; + case IPL_TYPE_ECKD: + diag308(DIAG308_SET, reipl_block_eckd); + if (reipl_eckd_clear) + diag308(DIAG308_LOAD_CLEAR, NULL); + else + diag308(DIAG308_LOAD_NORMAL, NULL); + break; case IPL_TYPE_FCP: diag308(DIAG308_SET, reipl_block_fcp); if (reipl_fcp_clear) @@ -1147,6 +1376,7 @@ static void __reipl_run(void *unused) break; case IPL_TYPE_FCP_DUMP: case IPL_TYPE_NVME_DUMP: + case IPL_TYPE_ECKD_DUMP: break; } disabled_wait(); @@ -1344,6 +1574,58 @@ out1: return rc; } +static int __init reipl_eckd_init(void) +{ + int rc; + + if (!sclp.has_sipl_eckd) + return 0; + + reipl_block_eckd = (void *)get_zeroed_page(GFP_KERNEL); + if (!reipl_block_eckd) + return -ENOMEM; + + /* sysfs: create kset for mixing attr group and bin attrs */ + reipl_eckd_kset = kset_create_and_add(IPL_ECKD_STR, NULL, + &reipl_kset->kobj); + if (!reipl_eckd_kset) { + free_page((unsigned long)reipl_block_eckd); + return -ENOMEM; + } + + rc = sysfs_create_group(&reipl_eckd_kset->kobj, &reipl_eckd_attr_group); + if (rc) + goto out1; + + if (test_facility(141)) { + rc = sysfs_create_file(&reipl_eckd_kset->kobj, + &sys_reipl_eckd_clear_attr.attr); + if (rc) + goto out2; + } else { + reipl_eckd_clear = true; + } + + if (ipl_info.type == IPL_TYPE_ECKD) { + memcpy(reipl_block_eckd, &ipl_block, sizeof(ipl_block)); + } else { + reipl_block_eckd->hdr.len = IPL_BP_ECKD_LEN; + reipl_block_eckd->hdr.version = IPL_PARM_BLOCK_VERSION; + reipl_block_eckd->eckd.len = IPL_BP0_ECKD_LEN; + reipl_block_eckd->eckd.pbt = IPL_PBT_ECKD; + reipl_block_eckd->eckd.opt = IPL_PB0_ECKD_OPT_IPL; + } + reipl_capabilities |= IPL_TYPE_ECKD; + return 0; + +out2: + sysfs_remove_group(&reipl_eckd_kset->kobj, &reipl_eckd_attr_group); +out1: + kset_unregister(reipl_eckd_kset); + free_page((unsigned long)reipl_block_eckd); + return rc; +} + static int __init reipl_type_init(void) { enum ipl_type reipl_type = ipl_info.type; @@ -1365,6 +1647,9 @@ static int __init reipl_type_init(void) } else if (reipl_block->pb0_hdr.pbt == IPL_PBT_CCW) { memcpy(reipl_block_ccw, reipl_block, size); reipl_type = IPL_TYPE_CCW; + } else if (reipl_block->pb0_hdr.pbt == IPL_PBT_ECKD) { + memcpy(reipl_block_eckd, reipl_block, size); + reipl_type = IPL_TYPE_ECKD; } out: return reipl_set_type(reipl_type); @@ -1385,6 +1670,9 @@ static int __init reipl_init(void) rc = reipl_ccw_init(); if (rc) return rc; + rc = reipl_eckd_init(); + if (rc) + return rc; rc = reipl_fcp_init(); if (rc) return rc; @@ -1457,6 +1745,29 @@ static struct attribute_group dump_nvme_attr_group = { .attrs = dump_nvme_attrs, }; +/* ECKD dump device attributes */ +DEFINE_IPL_CCW_ATTR_RW(dump_eckd, device, dump_block_eckd->eckd); +DEFINE_IPL_ATTR_RW(dump_eckd, bootprog, "%lld\n", "%llx\n", + dump_block_eckd->eckd.bootprog); + +IPL_ATTR_BR_CHR_SHOW_FN(dump, dump_block_eckd->eckd); +IPL_ATTR_BR_CHR_STORE_FN(dump, dump_block_eckd->eckd); + +static struct kobj_attribute sys_dump_eckd_br_chr_attr = + __ATTR(br_chr, 0644, eckd_dump_br_chr_show, eckd_dump_br_chr_store); + +static struct attribute *dump_eckd_attrs[] = { + &sys_dump_eckd_device_attr.attr, + &sys_dump_eckd_bootprog_attr.attr, + &sys_dump_eckd_br_chr_attr.attr, + NULL, +}; + +static struct attribute_group dump_eckd_attr_group = { + .name = IPL_ECKD_STR, + .attrs = dump_eckd_attrs, +}; + /* CCW dump device attributes */ DEFINE_IPL_CCW_ATTR_RW(dump_ccw, device, dump_block_ccw->ccw); @@ -1496,6 +1807,8 @@ static ssize_t dump_type_store(struct kobject *kobj, rc = dump_set_type(DUMP_TYPE_NONE); else if (strncmp(buf, DUMP_CCW_STR, strlen(DUMP_CCW_STR)) == 0) rc = dump_set_type(DUMP_TYPE_CCW); + else if (strncmp(buf, DUMP_ECKD_STR, strlen(DUMP_ECKD_STR)) == 0) + rc = dump_set_type(DUMP_TYPE_ECKD); else if (strncmp(buf, DUMP_FCP_STR, strlen(DUMP_FCP_STR)) == 0) rc = dump_set_type(DUMP_TYPE_FCP); else if (strncmp(buf, DUMP_NVME_STR, strlen(DUMP_NVME_STR)) == 0) @@ -1524,6 +1837,9 @@ static void __dump_run(void *unused) case DUMP_TYPE_CCW: diag308_dump(dump_block_ccw); break; + case DUMP_TYPE_ECKD: + diag308_dump(dump_block_eckd); + break; case DUMP_TYPE_FCP: diag308_dump(dump_block_fcp); break; @@ -1609,6 +1925,29 @@ static int __init dump_nvme_init(void) return 0; } +static int __init dump_eckd_init(void) +{ + int rc; + + if (!sclp_ipl_info.has_dump || !sclp.has_sipl_eckd) + return 0; /* LDIPL DUMP is not installed */ + dump_block_eckd = (void *)get_zeroed_page(GFP_KERNEL); + if (!dump_block_eckd) + return -ENOMEM; + rc = sysfs_create_group(&dump_kset->kobj, &dump_eckd_attr_group); + if (rc) { + free_page((unsigned long)dump_block_eckd); + return rc; + } + dump_block_eckd->hdr.len = IPL_BP_ECKD_LEN; + dump_block_eckd->hdr.version = IPL_PARM_BLOCK_VERSION; + dump_block_eckd->eckd.len = IPL_BP0_ECKD_LEN; + dump_block_eckd->eckd.pbt = IPL_PBT_ECKD; + dump_block_eckd->eckd.opt = IPL_PB0_ECKD_OPT_DUMP; + dump_capabilities |= DUMP_TYPE_ECKD; + return 0; +} + static int __init dump_init(void) { int rc; @@ -1624,6 +1963,9 @@ static int __init dump_init(void) rc = dump_ccw_init(); if (rc) return rc; + rc = dump_eckd_init(); + if (rc) + return rc; rc = dump_fcp_init(); if (rc) return rc; @@ -2057,6 +2399,11 @@ void __init setup_ipl(void) ipl_info.data.ccw.dev_id.ssid = ipl_block.ccw.ssid; ipl_info.data.ccw.dev_id.devno = ipl_block.ccw.devno; break; + case IPL_TYPE_ECKD: + case IPL_TYPE_ECKD_DUMP: + ipl_info.data.eckd.dev_id.ssid = ipl_block.eckd.ssid; + ipl_info.data.eckd.dev_id.devno = ipl_block.eckd.devno; + break; case IPL_TYPE_FCP: case IPL_TYPE_FCP_DUMP: ipl_info.data.fcp.dev_id.ssid = 0; diff --git a/arch/s390/kernel/kprobes.c b/arch/s390/kernel/kprobes.c index 0032bdbe8e3f..401f9c933ff9 100644 --- a/arch/s390/kernel/kprobes.c +++ b/arch/s390/kernel/kprobes.c @@ -24,6 +24,7 @@ #include <asm/set_memory.h> #include <asm/sections.h> #include <asm/dis.h> +#include "kprobes.h" #include "entry.h" DEFINE_PER_CPU(struct kprobe *, current_kprobe); @@ -31,8 +32,6 @@ DEFINE_PER_CPU(struct kprobe_ctlblk, kprobe_ctlblk); struct kretprobe_blackpoint kretprobe_blacklist[] = { }; -DEFINE_INSN_CACHE_OPS(s390_insn); - static int insn_page_in_use; void *alloc_insn_page(void) diff --git a/arch/s390/kernel/kprobes.h b/arch/s390/kernel/kprobes.h new file mode 100644 index 000000000000..dc3ed5098ee7 --- /dev/null +++ b/arch/s390/kernel/kprobes.h @@ -0,0 +1,9 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ +#ifndef _ARCH_S390_KPROBES_H +#define _ARCH_S390_KPROBES_H + +#include <linux/kprobes.h> + +DEFINE_INSN_CACHE_OPS(s390_insn); + +#endif diff --git a/arch/s390/kernel/nmi.c b/arch/s390/kernel/nmi.c index 31cb9b00a36b..5dbf274719a9 100644 --- a/arch/s390/kernel/nmi.c +++ b/arch/s390/kernel/nmi.c @@ -19,7 +19,7 @@ #include <linux/time.h> #include <linux/module.h> #include <linux/sched/signal.h> - +#include <linux/kvm_host.h> #include <linux/export.h> #include <asm/lowcore.h> #include <asm/smp.h> @@ -31,8 +31,7 @@ #include <asm/ctl_reg.h> #include <asm/asm-offsets.h> #include <asm/pai.h> - -#include <linux/kvm_host.h> +#include <asm/vx-insn.h> struct mcck_struct { unsigned int kill_task : 1; @@ -43,21 +42,12 @@ struct mcck_struct { }; static DEFINE_PER_CPU(struct mcck_struct, cpu_mcck); -static struct kmem_cache *mcesa_cache; -static unsigned long mcesa_origin_lc; static inline int nmi_needs_mcesa(void) { return MACHINE_HAS_VX || MACHINE_HAS_GS; } -static inline unsigned long nmi_get_mcesa_size(void) -{ - if (MACHINE_HAS_GS) - return MCESA_MAX_SIZE; - return MCESA_MIN_SIZE; -} - /* * The initial machine check extended save area for the boot CPU. * It will be replaced on the boot CPU reinit with an allocated @@ -75,36 +65,23 @@ void __init nmi_alloc_mcesa_early(u64 *mcesad) *mcesad |= ilog2(MCESA_MAX_SIZE); } -static void __init nmi_alloc_cache(void) +int nmi_alloc_mcesa(u64 *mcesad) { unsigned long size; - - if (!nmi_needs_mcesa()) - return; - size = nmi_get_mcesa_size(); - if (size > MCESA_MIN_SIZE) - mcesa_origin_lc = ilog2(size); - /* create slab cache for the machine-check-extended-save-areas */ - mcesa_cache = kmem_cache_create("nmi_save_areas", size, size, 0, NULL); - if (!mcesa_cache) - panic("Couldn't create nmi save area cache"); -} - -int __ref nmi_alloc_mcesa(u64 *mcesad) -{ - unsigned long origin; + void *origin; *mcesad = 0; if (!nmi_needs_mcesa()) return 0; - if (!mcesa_cache) - nmi_alloc_cache(); - origin = (unsigned long) kmem_cache_alloc(mcesa_cache, GFP_KERNEL); + size = MACHINE_HAS_GS ? MCESA_MAX_SIZE : MCESA_MIN_SIZE; + origin = kmalloc(size, GFP_KERNEL); if (!origin) return -ENOMEM; /* The pointer is stored with mcesa_bits ORed in */ - kmemleak_not_leak((void *) origin); - *mcesad = __pa(origin) | mcesa_origin_lc; + kmemleak_not_leak(origin); + *mcesad = __pa(origin); + if (MACHINE_HAS_GS) + *mcesad |= ilog2(MCESA_MAX_SIZE); return 0; } @@ -112,12 +89,64 @@ void nmi_free_mcesa(u64 *mcesad) { if (!nmi_needs_mcesa()) return; - kmem_cache_free(mcesa_cache, __va(*mcesad & MCESA_ORIGIN_MASK)); + kfree(__va(*mcesad & MCESA_ORIGIN_MASK)); +} + +static __always_inline char *nmi_puts(char *dest, const char *src) +{ + while (*src) + *dest++ = *src++; + *dest = 0; + return dest; +} + +static __always_inline char *u64_to_hex(char *dest, u64 val) +{ + int i, num; + + for (i = 1; i <= 16; i++) { + num = (val >> (64 - 4 * i)) & 0xf; + if (num >= 10) + *dest++ = 'A' + num - 10; + else + *dest++ = '0' + num; + } + *dest = 0; + return dest; } static notrace void s390_handle_damage(void) { + union ctlreg0 cr0, cr0_new; + char message[100]; + psw_t psw_save; + char *ptr; + smp_emergency_stop(); + diag_amode31_ops.diag308_reset(); + ptr = nmi_puts(message, "System stopped due to unrecoverable machine check, code: 0x"); + u64_to_hex(ptr, S390_lowcore.mcck_interruption_code); + + /* + * Disable low address protection and make machine check new PSW a + * disabled wait PSW. Any additional machine check cannot be handled. + */ + __ctl_store(cr0.val, 0, 0); + cr0_new = cr0; + cr0_new.lap = 0; + __ctl_load(cr0_new.val, 0, 0); + psw_save = S390_lowcore.mcck_new_psw; + psw_bits(S390_lowcore.mcck_new_psw).io = 0; + psw_bits(S390_lowcore.mcck_new_psw).ext = 0; + psw_bits(S390_lowcore.mcck_new_psw).wait = 1; + sclp_emergency_printk(message); + + /* + * Restore machine check new PSW and control register 0 to original + * values. This makes possible system dump analysis easier. + */ + S390_lowcore.mcck_new_psw = psw_save; + __ctl_load(cr0.val, 0, 0); disabled_wait(); while (1); } @@ -181,10 +210,10 @@ void noinstr s390_handle_mcck(struct pt_regs *regs) trace_hardirqs_on(); } /* - * returns 0 if all required registers are available + * returns 0 if register contents could be validated * returns 1 otherwise */ -static int notrace s390_validate_registers(union mci mci, int umode) +static int notrace s390_validate_registers(union mci mci) { struct mcesa *mcesa; void *fpt_save_area; @@ -195,45 +224,15 @@ static int notrace s390_validate_registers(union mci mci, int umode) kill_task = 0; zero = 0; - if (!mci.gr) { - /* - * General purpose registers couldn't be restored and have - * unknown contents. Stop system or terminate process. - */ - if (!umode) - s390_handle_damage(); + if (!mci.gr || !mci.fp) kill_task = 1; - } - if (!mci.fp) { - /* - * Floating point registers can't be restored. If the - * kernel currently uses floating point registers the - * system is stopped. If the process has its floating - * pointer registers loaded it is terminated. - */ - if (S390_lowcore.fpu_flags & KERNEL_VXR_V0V7) - s390_handle_damage(); - if (!test_cpu_flag(CIF_FPU)) - kill_task = 1; - } fpt_save_area = &S390_lowcore.floating_pt_save_area; if (!mci.fc) { - /* - * Floating point control register can't be restored. - * If the kernel currently uses the floating pointer - * registers and needs the FPC register the system is - * stopped. If the process has its floating pointer - * registers loaded it is terminated. Otherwise the - * FPC is just validated. - */ - if (S390_lowcore.fpu_flags & KERNEL_FPC) - s390_handle_damage(); + kill_task = 1; asm volatile( " lfpc %0\n" : : "Q" (zero)); - if (!test_cpu_flag(CIF_FPU)) - kill_task = 1; } else { asm volatile( " lfpc %0\n" @@ -275,26 +274,15 @@ static int notrace s390_validate_registers(union mci mci, int umode) * appropriate actions. The host vector or FPU values have been * saved by KVM and will be restored by KVM. */ - if (!mci.vr && !test_cpu_flag(CIF_MCCK_GUEST)) { - /* - * Vector registers can't be restored. If the kernel - * currently uses vector registers the system is - * stopped. If the process has its vector registers - * loaded it is terminated. Otherwise just validate - * the registers. - */ - if (S390_lowcore.fpu_flags & KERNEL_VXR) - s390_handle_damage(); - if (!test_cpu_flag(CIF_FPU)) - kill_task = 1; - } + if (!mci.vr && !test_cpu_flag(CIF_MCCK_GUEST)) + kill_task = 1; cr0.val = S390_lowcore.cregs_save_area[0]; cr0.afp = cr0.vx = 1; __ctl_load(cr0.val, 0, 0); asm volatile( " la 1,%0\n" - " .word 0xe70f,0x1000,0x0036\n" /* vlm 0,15,0(1) */ - " .word 0xe70f,0x1100,0x0c36\n" /* vlm 16,31,256(1) */ + " VLM 0,15,0,1\n" + " VLM 16,31,256,1\n" : : "Q" (*(struct vx_array *)mcesa->vector_save_area) : "1"); @@ -306,13 +294,8 @@ static int notrace s390_validate_registers(union mci mci, int umode) : : "a" (&S390_lowcore.access_regs_save_area) : "memory"); - if (!mci.ar) { - /* - * Access registers have unknown contents. - * Terminating task. - */ + if (!mci.ar) kill_task = 1; - } /* Validate guarded storage registers */ cr2.val = S390_lowcore.cregs_save_area[2]; if (cr2.gse) { @@ -451,7 +434,9 @@ int notrace s390_do_machine_check(struct pt_regs *regs) s390_handle_damage(); } } - if (s390_validate_registers(mci, user_mode(regs))) { + if (s390_validate_registers(mci)) { + if (!user_mode(regs)) + s390_handle_damage(); /* * Couldn't restore all register contents for the * user space process -> mark task for termination. @@ -480,7 +465,21 @@ int notrace s390_do_machine_check(struct pt_regs *regs) mcck->stp_queue |= stp_island_check(); mcck_pending = 1; } - + /* + * Reinject storage related machine checks into the guest if they + * happen when the guest is running. + */ + if (!test_cpu_flag(CIF_MCCK_GUEST)) { + /* Storage error uncorrected */ + if (mci.se) + s390_handle_damage(); + /* Storage key-error uncorrected */ + if (mci.ke) + s390_handle_damage(); + /* Storage degradation */ + if (mci.ds && mci.fa) + s390_handle_damage(); + } if (mci.cp) { /* Channel report word pending */ mcck->channel_report = 1; diff --git a/arch/s390/kernel/perf_pai_crypto.c b/arch/s390/kernel/perf_pai_crypto.c index 6826e2a69a21..529a2fee4ea5 100644 --- a/arch/s390/kernel/perf_pai_crypto.c +++ b/arch/s390/kernel/perf_pai_crypto.c @@ -35,9 +35,9 @@ struct pai_userdata { struct paicrypt_map { unsigned long *page; /* Page for CPU to store counters */ struct pai_userdata *save; /* Page to store no-zero counters */ - unsigned int users; /* # of PAI crypto users */ - unsigned int sampler; /* # of PAI crypto samplers */ - unsigned int counter; /* # of PAI crypto counters */ + unsigned int active_events; /* # of PAI crypto users */ + unsigned int refcnt; /* Reference count mapped buffers */ + enum paievt_mode mode; /* Type of event */ struct perf_event *event; /* Perf event for sampling */ }; @@ -56,15 +56,11 @@ static void paicrypt_event_destroy(struct perf_event *event) cpump->event = NULL; static_branch_dec(&pai_key); mutex_lock(&pai_reserve_mutex); - if (event->attr.sample_period) - cpump->sampler -= 1; - else - cpump->counter -= 1; - debug_sprintf_event(cfm_dbg, 5, "%s event %#llx cpu %d" - " sampler %d counter %d\n", __func__, - event->attr.config, event->cpu, cpump->sampler, - cpump->counter); - if (!cpump->counter && !cpump->sampler) { + debug_sprintf_event(cfm_dbg, 5, "%s event %#llx cpu %d users %d" + " mode %d refcnt %d\n", __func__, + event->attr.config, event->cpu, + cpump->active_events, cpump->mode, cpump->refcnt); + if (!--cpump->refcnt) { debug_sprintf_event(cfm_dbg, 4, "%s page %#lx save %p\n", __func__, (unsigned long)cpump->page, cpump->save); @@ -72,6 +68,7 @@ static void paicrypt_event_destroy(struct perf_event *event) cpump->page = NULL; kvfree(cpump->save); cpump->save = NULL; + cpump->mode = PAI_MODE_NONE; } mutex_unlock(&pai_reserve_mutex); } @@ -136,17 +133,14 @@ static u64 paicrypt_getall(struct perf_event *event) */ static int paicrypt_busy(struct perf_event_attr *a, struct paicrypt_map *cpump) { - unsigned int *use_ptr; int rc = 0; mutex_lock(&pai_reserve_mutex); if (a->sample_period) { /* Sampling requested */ - use_ptr = &cpump->sampler; - if (cpump->counter || cpump->sampler) + if (cpump->mode != PAI_MODE_NONE) rc = -EBUSY; /* ... sampling/counting active */ } else { /* Counting requested */ - use_ptr = &cpump->counter; - if (cpump->sampler) + if (cpump->mode == PAI_MODE_SAMPLING) rc = -EBUSY; /* ... and sampling active */ } if (rc) @@ -172,12 +166,16 @@ static int paicrypt_busy(struct perf_event_attr *a, struct paicrypt_map *cpump) rc = 0; unlock: - /* If rc is non-zero, do not increment counter/sampler. */ - if (!rc) - *use_ptr += 1; - debug_sprintf_event(cfm_dbg, 5, "%s sample_period %#llx sampler %d" - " counter %d page %#lx save %p rc %d\n", __func__, - a->sample_period, cpump->sampler, cpump->counter, + /* If rc is non-zero, do not set mode and reference count */ + if (!rc) { + cpump->refcnt++; + cpump->mode = a->sample_period ? PAI_MODE_SAMPLING + : PAI_MODE_COUNTING; + } + debug_sprintf_event(cfm_dbg, 5, "%s sample_period %#llx users %d" + " mode %d refcnt %d page %#lx save %p rc %d\n", + __func__, a->sample_period, cpump->active_events, + cpump->mode, cpump->refcnt, (unsigned long)cpump->page, cpump->save, rc); mutex_unlock(&pai_reserve_mutex); return rc; @@ -262,7 +260,7 @@ static int paicrypt_add(struct perf_event *event, int flags) struct paicrypt_map *cpump = this_cpu_ptr(&paicrypt_map); unsigned long ccd; - if (cpump->users++ == 0) { + if (++cpump->active_events == 1) { ccd = virt_to_phys(cpump->page) | PAI_CRYPTO_KERNEL_OFFSET; WRITE_ONCE(S390_lowcore.ccd, ccd); __ctl_set_bit(0, 50); @@ -293,7 +291,7 @@ static void paicrypt_del(struct perf_event *event, int flags) if (!event->attr.sample_period) /* Only counting needs to read counter */ paicrypt_stop(event, PERF_EF_UPDATE); - if (cpump->users-- == 1) { + if (--cpump->active_events == 0) { __ctl_clear_bit(0, 50); WRITE_ONCE(S390_lowcore.ccd, 0); } diff --git a/arch/s390/kernel/perf_pai_ext.c b/arch/s390/kernel/perf_pai_ext.c index 74b53c531e0c..a46cd7406b20 100644 --- a/arch/s390/kernel/perf_pai_ext.c +++ b/arch/s390/kernel/perf_pai_ext.c @@ -28,12 +28,6 @@ static debug_info_t *paiext_dbg; static unsigned int paiext_cnt; /* Extracted with QPACI instruction */ -enum paiext_mode { - PAI_MODE_NONE, - PAI_MODE_SAMPLING, - PAI_MODE_COUNTER, -}; - struct pai_userdata { u16 num; u64 value; @@ -54,7 +48,7 @@ struct paiext_cb { /* PAI extension 1 control block */ struct paiext_map { unsigned long *area; /* Area for CPU to store counters */ struct pai_userdata *save; /* Area to store non-zero counters */ - enum paiext_mode mode; /* Type of event */ + enum paievt_mode mode; /* Type of event */ unsigned int active_events; /* # of PAI Extension users */ unsigned int refcnt; struct perf_event *event; /* Perf event for sampling */ @@ -192,14 +186,14 @@ static int paiext_alloc(struct perf_event_attr *a, struct perf_event *event) goto unlock; } cpump->mode = a->sample_period ? PAI_MODE_SAMPLING - : PAI_MODE_COUNTER; + : PAI_MODE_COUNTING; } else { /* Multiple invocation, check whats active. * Supported are multiple counter events or only one sampling * event concurrently at any one time. */ if (cpump->mode == PAI_MODE_SAMPLING || - (cpump->mode == PAI_MODE_COUNTER && a->sample_period)) { + (cpump->mode == PAI_MODE_COUNTING && a->sample_period)) { rc = -EBUSY; goto unlock; } diff --git a/arch/s390/kernel/setup.c b/arch/s390/kernel/setup.c index ab19ddb09d65..2094f575c532 100644 --- a/arch/s390/kernel/setup.c +++ b/arch/s390/kernel/setup.c @@ -437,7 +437,7 @@ static void __init setup_lowcore_dat_off(void) lc->svc_new_psw.addr = (unsigned long) system_call; lc->program_new_psw.mask = int_psw_mask | PSW_MASK_MCHECK; lc->program_new_psw.addr = (unsigned long) pgm_check_handler; - lc->mcck_new_psw.mask = PSW_KERNEL_BITS; + lc->mcck_new_psw.mask = int_psw_mask; lc->mcck_new_psw.addr = (unsigned long) mcck_int_handler; lc->io_new_psw.mask = int_psw_mask | PSW_MASK_MCHECK; lc->io_new_psw.addr = (unsigned long) io_int_handler; @@ -512,6 +512,7 @@ static void __init setup_lowcore_dat_on(void) S390_lowcore.external_new_psw.mask |= PSW_MASK_DAT; S390_lowcore.svc_new_psw.mask |= PSW_MASK_DAT; S390_lowcore.program_new_psw.mask |= PSW_MASK_DAT; + S390_lowcore.mcck_new_psw.mask |= PSW_MASK_DAT; S390_lowcore.io_new_psw.mask |= PSW_MASK_DAT; __ctl_set_bit(0, 28); __ctl_store(S390_lowcore.cregs_save_area, 0, 15); diff --git a/arch/s390/mm/init.c b/arch/s390/mm/init.c index 97d66a3e60fb..1a25d456d865 100644 --- a/arch/s390/mm/init.c +++ b/arch/s390/mm/init.c @@ -31,6 +31,7 @@ #include <linux/cma.h> #include <linux/gfp.h> #include <linux/dma-direct.h> +#include <linux/percpu.h> #include <asm/processor.h> #include <linux/uaccess.h> #include <asm/pgalloc.h> @@ -207,9 +208,6 @@ void free_initmem(void) __set_memory((unsigned long)_sinittext, (unsigned long)(_einittext - _sinittext) >> PAGE_SHIFT, SET_MEMORY_RW | SET_MEMORY_NX); - free_reserved_area(sclp_early_sccb, - sclp_early_sccb + EXT_SCCB_READ_SCP, - POISON_FREE_INITMEM, "unused early sccb"); free_initmem_default(POISON_FREE_INITMEM); } @@ -222,6 +220,41 @@ unsigned long memory_block_size_bytes(void) return max_t(unsigned long, MIN_MEMORY_BLOCK_SIZE, sclp.rzm); } +unsigned long __per_cpu_offset[NR_CPUS] __read_mostly; +EXPORT_SYMBOL(__per_cpu_offset); + +static int __init pcpu_cpu_distance(unsigned int from, unsigned int to) +{ + return LOCAL_DISTANCE; +} + +static int __init pcpu_cpu_to_node(int cpu) +{ + return 0; +} + +void __init setup_per_cpu_areas(void) +{ + unsigned long delta; + unsigned int cpu; + int rc; + + /* + * Always reserve area for module percpu variables. That's + * what the legacy allocator did. + */ + rc = pcpu_embed_first_chunk(PERCPU_MODULE_RESERVE, + PERCPU_DYNAMIC_RESERVE, PAGE_SIZE, + pcpu_cpu_distance, + pcpu_cpu_to_node); + if (rc < 0) + panic("Failed to initialize percpu areas."); + + delta = (unsigned long)pcpu_base_addr - (unsigned long)__per_cpu_start; + for_each_possible_cpu(cpu) + __per_cpu_offset[cpu] = delta + pcpu_unit_offsets[cpu]; +} + #ifdef CONFIG_MEMORY_HOTPLUG #ifdef CONFIG_CMA diff --git a/arch/s390/mm/page-states.c b/arch/s390/mm/page-states.c index d5ea09d78938..1e2ea706aa22 100644 --- a/arch/s390/mm/page-states.c +++ b/arch/s390/mm/page-states.c @@ -58,17 +58,6 @@ void __init cmma_init(void) cmma_flag = 2; } -static inline unsigned char get_page_state(struct page *page) -{ - unsigned char state; - - asm volatile(" .insn rrf,0xb9ab0000,%0,%1,%2,0" - : "=&d" (state) - : "a" (page_to_phys(page)), - "i" (ESSA_GET_STATE)); - return state & 0x3f; -} - static inline void set_page_unused(struct page *page, int order) { int i, rc; diff --git a/arch/s390/pci/pci_irq.c b/arch/s390/pci/pci_irq.c index a2b42a63a53b..4ab0cf829999 100644 --- a/arch/s390/pci/pci_irq.c +++ b/arch/s390/pci/pci_irq.c @@ -132,7 +132,7 @@ static int zpci_clear_irq(struct zpci_dev *zdev) static int zpci_set_irq_affinity(struct irq_data *data, const struct cpumask *dest, bool force) { - struct msi_desc *entry = irq_get_msi_desc(data->irq); + struct msi_desc *entry = irq_data_get_msi_desc(data); struct msi_msg msg = entry->msg; int cpu_addr = smp_cpu_get_cpu_address(cpumask_first(dest)); |