diff options
Diffstat (limited to 'arch/s390/include/asm')
132 files changed, 555 insertions, 277 deletions
diff --git a/arch/s390/include/asm/Kbuild b/arch/s390/include/asm/Kbuild index b3c88479feba..6e2c9f7e47fa 100644 --- a/arch/s390/include/asm/Kbuild +++ b/arch/s390/include/asm/Kbuild @@ -16,4 +16,5 @@ generic-y += mcs_spinlock.h generic-y += mm-arch-hooks.h generic-y += preempt.h generic-y += trace_clock.h +generic-y += unaligned.h generic-y += word-at-a-time.h diff --git a/arch/s390/include/asm/airq.h b/arch/s390/include/asm/airq.h index bd93ff6661b8..fcf539efb32f 100644 --- a/arch/s390/include/asm/airq.h +++ b/arch/s390/include/asm/airq.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * Copyright IBM Corp. 2002, 2007 * Author(s): Ingo Adlung <adlung@de.ibm.com> diff --git a/arch/s390/include/asm/ap.h b/arch/s390/include/asm/ap.h new file mode 100644 index 000000000000..c02f4aba88a6 --- /dev/null +++ b/arch/s390/include/asm/ap.h @@ -0,0 +1,126 @@ +/* + * Adjunct processor (AP) interfaces + * + * Copyright IBM Corp. 2017 + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License (version 2 only) + * as published by the Free Software Foundation. + * + * Author(s): Tony Krowiak <akrowia@linux.vnet.ibm.com> + * Martin Schwidefsky <schwidefsky@de.ibm.com> + * Harald Freudenberger <freude@de.ibm.com> + */ + +#ifndef _ASM_S390_AP_H_ +#define _ASM_S390_AP_H_ + +/** + * The ap_qid_t identifier of an ap queue. + * If the AP facilities test (APFT) facility is available, + * card and queue index are 8 bit values, otherwise + * card index is 6 bit and queue index a 4 bit value. + */ +typedef unsigned int ap_qid_t; + +#define AP_MKQID(_card, _queue) (((_card) & 63) << 8 | ((_queue) & 255)) +#define AP_QID_CARD(_qid) (((_qid) >> 8) & 63) +#define AP_QID_QUEUE(_qid) ((_qid) & 255) + +/** + * struct ap_queue_status - Holds the AP queue status. + * @queue_empty: Shows if queue is empty + * @replies_waiting: Waiting replies + * @queue_full: Is 1 if the queue is full + * @irq_enabled: Shows if interrupts are enabled for the AP + * @response_code: Holds the 8 bit response code + * + * The ap queue status word is returned by all three AP functions + * (PQAP, NQAP and DQAP). There's a set of flags in the first + * byte, followed by a 1 byte response code. + */ +struct ap_queue_status { + unsigned int queue_empty : 1; + unsigned int replies_waiting : 1; + unsigned int queue_full : 1; + unsigned int _pad1 : 4; + unsigned int irq_enabled : 1; + unsigned int response_code : 8; + unsigned int _pad2 : 16; +}; + +/** + * ap_test_queue(): Test adjunct processor queue. + * @qid: The AP queue number + * @tbit: Test facilities bit + * @info: Pointer to queue descriptor + * + * Returns AP queue status structure. + */ +struct ap_queue_status ap_test_queue(ap_qid_t qid, + int tbit, + unsigned long *info); + +struct ap_config_info { + unsigned int apsc : 1; /* S bit */ + unsigned int apxa : 1; /* N bit */ + unsigned int qact : 1; /* C bit */ + unsigned int rc8a : 1; /* R bit */ + unsigned char _reserved1 : 4; + unsigned char _reserved2[3]; + unsigned char Na; /* max # of APs - 1 */ + unsigned char Nd; /* max # of Domains - 1 */ + unsigned char _reserved3[10]; + unsigned int apm[8]; /* AP ID mask */ + unsigned int aqm[8]; /* AP queue mask */ + unsigned int adm[8]; /* AP domain mask */ + unsigned char _reserved4[16]; +} __aligned(8); + +/* + * ap_query_configuration(): Fetch cryptographic config info + * + * Returns the ap configuration info fetched via PQAP(QCI). + * On success 0 is returned, on failure a negative errno + * is returned, e.g. if the PQAP(QCI) instruction is not + * available, the return value will be -EOPNOTSUPP. + */ +int ap_query_configuration(struct ap_config_info *info); + +/* + * struct ap_qirq_ctrl - convenient struct for easy invocation + * of the ap_queue_irq_ctrl() function. This struct is passed + * as GR1 parameter to the PQAP(AQIC) instruction. For details + * please see the AR documentation. + */ +struct ap_qirq_ctrl { + unsigned int _res1 : 8; + unsigned int zone : 8; /* zone info */ + unsigned int ir : 1; /* ir flag: enable (1) or disable (0) irq */ + unsigned int _res2 : 4; + unsigned int gisc : 3; /* guest isc field */ + unsigned int _res3 : 6; + unsigned int gf : 2; /* gisa format */ + unsigned int _res4 : 1; + unsigned int gisa : 27; /* gisa origin */ + unsigned int _res5 : 1; + unsigned int isc : 3; /* irq sub class */ +}; + +/** + * ap_queue_irq_ctrl(): Control interruption on a AP queue. + * @qid: The AP queue number + * @qirqctrl: struct ap_qirq_ctrl, see above + * @ind: The notification indicator byte + * + * Returns AP queue status. + * + * Control interruption on the given AP queue. + * Just a simple wrapper function for the low level PQAP(AQIC) + * instruction available for other kernel modules. + */ +struct ap_queue_status ap_queue_irq_ctrl(ap_qid_t qid, + struct ap_qirq_ctrl qirqctrl, + void *ind); + +#endif /* _ASM_S390_AP_H_ */ diff --git a/arch/s390/include/asm/appldata.h b/arch/s390/include/asm/appldata.h index a6263d4e8e56..4afbb5938726 100644 --- a/arch/s390/include/asm/appldata.h +++ b/arch/s390/include/asm/appldata.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * Copyright IBM Corp. 2006 * diff --git a/arch/s390/include/asm/archrandom.h b/arch/s390/include/asm/archrandom.h index 6033901a40b2..e9f7d7a57f99 100644 --- a/arch/s390/include/asm/archrandom.h +++ b/arch/s390/include/asm/archrandom.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * Kernel interface for the s390 arch_random_* functions * diff --git a/arch/s390/include/asm/asm-prototypes.h b/arch/s390/include/asm/asm-prototypes.h index 2c3413b0ca52..c37eb921bfbf 100644 --- a/arch/s390/include/asm/asm-prototypes.h +++ b/arch/s390/include/asm/asm-prototypes.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifndef _ASM_S390_PROTOTYPES_H #include <linux/kvm_host.h> diff --git a/arch/s390/include/asm/atomic.h b/arch/s390/include/asm/atomic.h index f7f69dfd2db2..4b55532f15c4 100644 --- a/arch/s390/include/asm/atomic.h +++ b/arch/s390/include/asm/atomic.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * Copyright IBM Corp. 1999, 2016 * Author(s): Martin Schwidefsky <schwidefsky@de.ibm.com>, diff --git a/arch/s390/include/asm/atomic_ops.h b/arch/s390/include/asm/atomic_ops.h index ba6d29412344..f479e4c0b87e 100644 --- a/arch/s390/include/asm/atomic_ops.h +++ b/arch/s390/include/asm/atomic_ops.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * Low level function for atomic operations * diff --git a/arch/s390/include/asm/barrier.h b/arch/s390/include/asm/barrier.h index 5c8db3ce61c8..10432607a573 100644 --- a/arch/s390/include/asm/barrier.h +++ b/arch/s390/include/asm/barrier.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * Copyright IBM Corp. 1999, 2009 * diff --git a/arch/s390/include/asm/bitops.h b/arch/s390/include/asm/bitops.h index 99902b7b9f0c..31e400c1a1f3 100644 --- a/arch/s390/include/asm/bitops.h +++ b/arch/s390/include/asm/bitops.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * Copyright IBM Corp. 1999,2013 * diff --git a/arch/s390/include/asm/bug.h b/arch/s390/include/asm/bug.h index ce9cc123988b..429f43a8a8e8 100644 --- a/arch/s390/include/asm/bug.h +++ b/arch/s390/include/asm/bug.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifndef _ASM_S390_BUG_H #define _ASM_S390_BUG_H diff --git a/arch/s390/include/asm/cache.h b/arch/s390/include/asm/cache.h index 05219a5e0b2f..d5e22e837416 100644 --- a/arch/s390/include/asm/cache.h +++ b/arch/s390/include/asm/cache.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * S390 version * Copyright IBM Corp. 1999 diff --git a/arch/s390/include/asm/ccwdev.h b/arch/s390/include/asm/ccwdev.h index b80e456d6428..633f8da86137 100644 --- a/arch/s390/include/asm/ccwdev.h +++ b/arch/s390/include/asm/ccwdev.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * Copyright IBM Corp. 2002, 2009 * diff --git a/arch/s390/include/asm/ccwgroup.h b/arch/s390/include/asm/ccwgroup.h index 057ce0ca6377..b00777ce93b4 100644 --- a/arch/s390/include/asm/ccwgroup.h +++ b/arch/s390/include/asm/ccwgroup.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifndef S390_CCWGROUP_H #define S390_CCWGROUP_H diff --git a/arch/s390/include/asm/checksum.h b/arch/s390/include/asm/checksum.h index 12bf4fef2a68..91e376b0d28c 100644 --- a/arch/s390/include/asm/checksum.h +++ b/arch/s390/include/asm/checksum.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * S390 fast network checksum routines * diff --git a/arch/s390/include/asm/chpid.h b/arch/s390/include/asm/chpid.h index 7298eec98541..4773f747915c 100644 --- a/arch/s390/include/asm/chpid.h +++ b/arch/s390/include/asm/chpid.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * Copyright IBM Corp. 2007, 2012 * Author(s): Peter Oberparleiter <peter.oberparleiter@de.ibm.com> diff --git a/arch/s390/include/asm/cio.h b/arch/s390/include/asm/cio.h index 7a38ca85190b..dc84a0171bb3 100644 --- a/arch/s390/include/asm/cio.h +++ b/arch/s390/include/asm/cio.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * Common interface for I/O on S/390 */ diff --git a/arch/s390/include/asm/clp.h b/arch/s390/include/asm/clp.h index 5687d62fb0cb..3925b0f085b7 100644 --- a/arch/s390/include/asm/clp.h +++ b/arch/s390/include/asm/clp.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifndef _ASM_S390_CLP_H #define _ASM_S390_CLP_H diff --git a/arch/s390/include/asm/cmb.h b/arch/s390/include/asm/cmb.h index ed2630c23f90..599594c3720f 100644 --- a/arch/s390/include/asm/cmb.h +++ b/arch/s390/include/asm/cmb.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifndef S390_CMB_H #define S390_CMB_H diff --git a/arch/s390/include/asm/cmpxchg.h b/arch/s390/include/asm/cmpxchg.h index 24ea6948e32b..af99c1f66f12 100644 --- a/arch/s390/include/asm/cmpxchg.h +++ b/arch/s390/include/asm/cmpxchg.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * Copyright IBM Corp. 1999, 2011 * diff --git a/arch/s390/include/asm/compat.h b/arch/s390/include/asm/compat.h index b9300f8aee10..1b60eb3676d5 100644 --- a/arch/s390/include/asm/compat.h +++ b/arch/s390/include/asm/compat.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifndef _ASM_S390X_COMPAT_H #define _ASM_S390X_COMPAT_H /* @@ -8,11 +9,12 @@ #include <linux/sched/task_stack.h> #include <linux/thread_info.h> -#define __TYPE_IS_PTR(t) (!__builtin_types_compatible_p(typeof(0?(t)0:0ULL), u64)) +#define __TYPE_IS_PTR(t) (!__builtin_types_compatible_p( \ + typeof(0?(__force t)0:0ULL), u64)) #define __SC_DELOUSE(t,v) ({ \ BUILD_BUG_ON(sizeof(t) > 4 && !__TYPE_IS_PTR(t)); \ - (t)(__TYPE_IS_PTR(t) ? ((v) & 0x7fffffff) : (v)); \ + (__force t)(__TYPE_IS_PTR(t) ? ((v) & 0x7fffffff) : (v)); \ }) #define PSW32_MASK_PER 0x40000000UL diff --git a/arch/s390/include/asm/cpacf.h b/arch/s390/include/asm/cpacf.h index e06f2556b316..056670ebba67 100644 --- a/arch/s390/include/asm/cpacf.h +++ b/arch/s390/include/asm/cpacf.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * CP Assist for Cryptographic Functions (CPACF) * diff --git a/arch/s390/include/asm/cpcmd.h b/arch/s390/include/asm/cpcmd.h index 3dfadb5d648f..c3c993abe964 100644 --- a/arch/s390/include/asm/cpcmd.h +++ b/arch/s390/include/asm/cpcmd.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * S390 version * Copyright IBM Corp. 1999 @@ -10,9 +11,8 @@ /* * the lowlevel function for cpcmd - * the caller of __cpcmd has to ensure that the response buffer is below 2 GB */ -extern int __cpcmd(const char *cmd, char *response, int rlen, int *response_code); +int __cpcmd(const char *cmd, char *response, int rlen, int *response_code); /* * cpcmd is the in-kernel interface for issuing CP commands @@ -25,8 +25,8 @@ extern int __cpcmd(const char *cmd, char *response, int rlen, int *response_code * response_code: return pointer for VM's error code * return value: the size of the response. The caller can check if the buffer * was large enough by comparing the return value and rlen - * NOTE: If the response buffer is not below 2 GB, cpcmd can sleep + * NOTE: If the response buffer is not in real storage, cpcmd can sleep */ -extern int cpcmd(const char *cmd, char *response, int rlen, int *response_code); +int cpcmd(const char *cmd, char *response, int rlen, int *response_code); #endif /* _ASM_S390_CPCMD_H */ diff --git a/arch/s390/include/asm/cpu.h b/arch/s390/include/asm/cpu.h index 91541000378e..62228a884e06 100644 --- a/arch/s390/include/asm/cpu.h +++ b/arch/s390/include/asm/cpu.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * Copyright IBM Corp. 2000, 2009 * Author(s): Hartmut Penner <hp@de.ibm.com>, diff --git a/arch/s390/include/asm/cpufeature.h b/arch/s390/include/asm/cpufeature.h index fa7e69b7c299..1d007c6ede95 100644 --- a/arch/s390/include/asm/cpufeature.h +++ b/arch/s390/include/asm/cpufeature.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * Module interface for CPU features * diff --git a/arch/s390/include/asm/cputime.h b/arch/s390/include/asm/cputime.h index 9072bf63a846..cb729d111e20 100644 --- a/arch/s390/include/asm/cputime.h +++ b/arch/s390/include/asm/cputime.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * Copyright IBM Corp. 2004 * diff --git a/arch/s390/include/asm/crw.h b/arch/s390/include/asm/crw.h index bcb9cd2a730a..c6ebfd31f1db 100644 --- a/arch/s390/include/asm/crw.h +++ b/arch/s390/include/asm/crw.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * Data definitions for channel report processing * Copyright IBM Corp. 2000, 2009 diff --git a/arch/s390/include/asm/css_chars.h b/arch/s390/include/asm/css_chars.h index 09d1dd46bd57..a478eb61aaf7 100644 --- a/arch/s390/include/asm/css_chars.h +++ b/arch/s390/include/asm/css_chars.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifndef _ASM_CSS_CHARS_H #define _ASM_CSS_CHARS_H diff --git a/arch/s390/include/asm/ctl_reg.h b/arch/s390/include/asm/ctl_reg.h index e508dff92535..93e0d72f6c94 100644 --- a/arch/s390/include/asm/ctl_reg.h +++ b/arch/s390/include/asm/ctl_reg.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * Copyright IBM Corp. 1999, 2009 * diff --git a/arch/s390/include/asm/current.h b/arch/s390/include/asm/current.h index b80941f30df5..68f84315277c 100644 --- a/arch/s390/include/asm/current.h +++ b/arch/s390/include/asm/current.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * S390 version * Copyright IBM Corp. 1999 diff --git a/arch/s390/include/asm/debug.h b/arch/s390/include/asm/debug.h index df7b54ea956d..a4ed25dd3278 100644 --- a/arch/s390/include/asm/debug.h +++ b/arch/s390/include/asm/debug.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * S/390 debug facility * diff --git a/arch/s390/include/asm/delay.h b/arch/s390/include/asm/delay.h index 3f6e4095f471..898323fd93d2 100644 --- a/arch/s390/include/asm/delay.h +++ b/arch/s390/include/asm/delay.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * S390 version * Copyright IBM Corp. 1999 diff --git a/arch/s390/include/asm/diag.h b/arch/s390/include/asm/diag.h index 88162bb5c190..6db78567294c 100644 --- a/arch/s390/include/asm/diag.h +++ b/arch/s390/include/asm/diag.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * s390 diagnose functions * diff --git a/arch/s390/include/asm/dis.h b/arch/s390/include/asm/dis.h index 37f617dfbede..78d1b2d725b9 100644 --- a/arch/s390/include/asm/dis.h +++ b/arch/s390/include/asm/dis.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * Disassemble s390 instructions. * diff --git a/arch/s390/include/asm/dma-mapping.h b/arch/s390/include/asm/dma-mapping.h index 512ad0eaa11a..8fc8764fe5ee 100644 --- a/arch/s390/include/asm/dma-mapping.h +++ b/arch/s390/include/asm/dma-mapping.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifndef _ASM_S390_DMA_MAPPING_H #define _ASM_S390_DMA_MAPPING_H diff --git a/arch/s390/include/asm/dma.h b/arch/s390/include/asm/dma.h index bb9bdcd20864..6f26f35d4a71 100644 --- a/arch/s390/include/asm/dma.h +++ b/arch/s390/include/asm/dma.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifndef _ASM_S390_DMA_H #define _ASM_S390_DMA_H diff --git a/arch/s390/include/asm/eadm.h b/arch/s390/include/asm/eadm.h index 144809a3f4f6..eb5323161f11 100644 --- a/arch/s390/include/asm/eadm.h +++ b/arch/s390/include/asm/eadm.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifndef _ASM_S390_EADM_H #define _ASM_S390_EADM_H diff --git a/arch/s390/include/asm/ebcdic.h b/arch/s390/include/asm/ebcdic.h index c5befc5a3bf5..29441beb92e6 100644 --- a/arch/s390/include/asm/ebcdic.h +++ b/arch/s390/include/asm/ebcdic.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * EBCDIC -> ASCII, ASCII -> EBCDIC conversion routines. * @@ -9,9 +10,7 @@ #ifndef _EBCDIC_H #define _EBCDIC_H -#ifndef _S390_TYPES_H -#include <types.h> -#endif +#include <linux/types.h> extern __u8 _ascebc_500[256]; /* ASCII -> EBCDIC 500 conversion table */ extern __u8 _ebcasc_500[256]; /* EBCDIC 500 -> ASCII conversion table */ diff --git a/arch/s390/include/asm/elf.h b/arch/s390/include/asm/elf.h index c92ed0170be2..9a3cb3983c01 100644 --- a/arch/s390/include/asm/elf.h +++ b/arch/s390/include/asm/elf.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * S390 version * @@ -191,7 +192,7 @@ struct arch_elf_state { } while (0) #define CORE_DUMP_USE_REGSET -#define ELF_EXEC_PAGESIZE 4096 +#define ELF_EXEC_PAGESIZE PAGE_SIZE /* * This is the base location for PIE (ET_DYN with INTERP) loads. On diff --git a/arch/s390/include/asm/exec.h b/arch/s390/include/asm/exec.h index c4a93d6327fa..641bfbec9d52 100644 --- a/arch/s390/include/asm/exec.h +++ b/arch/s390/include/asm/exec.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * Copyright IBM Corp. 1999, 2009 * diff --git a/arch/s390/include/asm/extable.h b/arch/s390/include/asm/extable.h index 16cfe2d62eeb..80a4e5a9cb46 100644 --- a/arch/s390/include/asm/extable.h +++ b/arch/s390/include/asm/extable.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifndef __S390_EXTABLE_H #define __S390_EXTABLE_H /* diff --git a/arch/s390/include/asm/extmem.h b/arch/s390/include/asm/extmem.h index 6276002d76ba..568fd81bb77b 100644 --- a/arch/s390/include/asm/extmem.h +++ b/arch/s390/include/asm/extmem.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * definitions for external memory segment support * Copyright IBM Corp. 2003 diff --git a/arch/s390/include/asm/facility.h b/arch/s390/include/asm/facility.h index cb60d5c5755d..f040644575b7 100644 --- a/arch/s390/include/asm/facility.h +++ b/arch/s390/include/asm/facility.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * Copyright IBM Corp. 1999, 2009 * diff --git a/arch/s390/include/asm/fcx.h b/arch/s390/include/asm/fcx.h index 04cb4b4bcc5f..cff0749e9657 100644 --- a/arch/s390/include/asm/fcx.h +++ b/arch/s390/include/asm/fcx.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * Functions for assembling fcx enabled I/O control blocks. * diff --git a/arch/s390/include/asm/fpu/api.h b/arch/s390/include/asm/fpu/api.h index 02124d66bfb5..34a7ae68485c 100644 --- a/arch/s390/include/asm/fpu/api.h +++ b/arch/s390/include/asm/fpu/api.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * In-kernel FPU support functions * diff --git a/arch/s390/include/asm/fpu/internal.h b/arch/s390/include/asm/fpu/internal.h index 629c90865a07..4a71dbbf76fb 100644 --- a/arch/s390/include/asm/fpu/internal.h +++ b/arch/s390/include/asm/fpu/internal.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * FPU state and register content conversion primitives * diff --git a/arch/s390/include/asm/fpu/types.h b/arch/s390/include/asm/fpu/types.h index bce255ead72b..d889e9436865 100644 --- a/arch/s390/include/asm/fpu/types.h +++ b/arch/s390/include/asm/fpu/types.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * FPU data structures * diff --git a/arch/s390/include/asm/ftrace.h b/arch/s390/include/asm/ftrace.h index 836c56290499..cfccc0edd00d 100644 --- a/arch/s390/include/asm/ftrace.h +++ b/arch/s390/include/asm/ftrace.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifndef _ASM_S390_FTRACE_H #define _ASM_S390_FTRACE_H diff --git a/arch/s390/include/asm/futex.h b/arch/s390/include/asm/futex.h index a4811aa0304d..9b5a3469fed9 100644 --- a/arch/s390/include/asm/futex.h +++ b/arch/s390/include/asm/futex.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifndef _ASM_S390_FUTEX_H #define _ASM_S390_FUTEX_H @@ -21,17 +22,12 @@ : "0" (-EFAULT), "d" (oparg), "a" (uaddr), \ "m" (*uaddr) : "cc"); -static inline int futex_atomic_op_inuser(int encoded_op, u32 __user *uaddr) +static inline int arch_futex_atomic_op_inuser(int op, int oparg, int *oval, + u32 __user *uaddr) { - int op = (encoded_op >> 28) & 7; - int cmp = (encoded_op >> 24) & 15; - int oparg = (encoded_op << 8) >> 20; - int cmparg = (encoded_op << 20) >> 20; int oldval = 0, newval, ret; load_kernel_asce(); - if (encoded_op & (FUTEX_OP_OPARG_SHIFT << 28)) - oparg = 1 << oparg; pagefault_disable(); switch (op) { @@ -60,17 +56,9 @@ static inline int futex_atomic_op_inuser(int encoded_op, u32 __user *uaddr) } pagefault_enable(); - if (!ret) { - switch (cmp) { - case FUTEX_OP_CMP_EQ: ret = (oldval == cmparg); break; - case FUTEX_OP_CMP_NE: ret = (oldval != cmparg); break; - case FUTEX_OP_CMP_LT: ret = (oldval < cmparg); break; - case FUTEX_OP_CMP_GE: ret = (oldval >= cmparg); break; - case FUTEX_OP_CMP_LE: ret = (oldval <= cmparg); break; - case FUTEX_OP_CMP_GT: ret = (oldval > cmparg); break; - default: ret = -ENOSYS; - } - } + if (!ret) + *oval = oldval; + return ret; } diff --git a/arch/s390/include/asm/gmap.h b/arch/s390/include/asm/gmap.h index 741ddba0bf11..e07cce88dfb0 100644 --- a/arch/s390/include/asm/gmap.h +++ b/arch/s390/include/asm/gmap.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * KVM guest address space mapping code * diff --git a/arch/s390/include/asm/hardirq.h b/arch/s390/include/asm/hardirq.h index b7eabaaeffbd..a296c6acfd07 100644 --- a/arch/s390/include/asm/hardirq.h +++ b/arch/s390/include/asm/hardirq.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * S390 version * Copyright IBM Corp. 1999, 2000 diff --git a/arch/s390/include/asm/hugetlb.h b/arch/s390/include/asm/hugetlb.h index d95869ce3ca2..9c5fc50204dd 100644 --- a/arch/s390/include/asm/hugetlb.h +++ b/arch/s390/include/asm/hugetlb.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * IBM System z Huge TLB Page Support for Kernel. * diff --git a/arch/s390/include/asm/hw_irq.h b/arch/s390/include/asm/hw_irq.h index ee96a8b697f9..adae176757ae 100644 --- a/arch/s390/include/asm/hw_irq.h +++ b/arch/s390/include/asm/hw_irq.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifndef _HW_IRQ_H #define _HW_IRQ_H diff --git a/arch/s390/include/asm/idals.h b/arch/s390/include/asm/idals.h index 280b60a0bcd4..15578fd762f6 100644 --- a/arch/s390/include/asm/idals.h +++ b/arch/s390/include/asm/idals.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * Author(s)......: Holger Smolinski <Holger.Smolinski@de.ibm.com> * Martin Schwidefsky <schwidefsky@de.ibm.com> diff --git a/arch/s390/include/asm/idle.h b/arch/s390/include/asm/idle.h index 51ff96d9f287..6d4226dcf42a 100644 --- a/arch/s390/include/asm/idle.h +++ b/arch/s390/include/asm/idle.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * Copyright IBM Corp. 2014 * diff --git a/arch/s390/include/asm/io.h b/arch/s390/include/asm/io.h index 904e4b3af95d..f34d729347e4 100644 --- a/arch/s390/include/asm/io.h +++ b/arch/s390/include/asm/io.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * S390 version * Copyright IBM Corp. 1999 diff --git a/arch/s390/include/asm/ipl.h b/arch/s390/include/asm/ipl.h index edb5161df7e2..5a8d92758a58 100644 --- a/arch/s390/include/asm/ipl.h +++ b/arch/s390/include/asm/ipl.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * s390 (re)ipl support * @@ -81,7 +82,7 @@ struct ipl_parameter_block { struct ipl_block_fcp fcp; struct ipl_block_ccw ccw; } ipl_info; -} __attribute__((packed,aligned(4096))); +} __packed __aligned(PAGE_SIZE); /* * IPL validity flags diff --git a/arch/s390/include/asm/irq.h b/arch/s390/include/asm/irq.h index 70c9bce766f5..2f7f27e5493f 100644 --- a/arch/s390/include/asm/irq.h +++ b/arch/s390/include/asm/irq.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifndef _ASM_IRQ_H #define _ASM_IRQ_H diff --git a/arch/s390/include/asm/irqflags.h b/arch/s390/include/asm/irqflags.h index 595a275c36f8..586df4c9e2f2 100644 --- a/arch/s390/include/asm/irqflags.h +++ b/arch/s390/include/asm/irqflags.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * Copyright IBM Corp. 2006, 2010 * Author(s): Martin Schwidefsky <schwidefsky@de.ibm.com> diff --git a/arch/s390/include/asm/isc.h b/arch/s390/include/asm/isc.h index 8a0b721a9b8d..6cb9e2ed05b6 100644 --- a/arch/s390/include/asm/isc.h +++ b/arch/s390/include/asm/isc.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifndef _ASM_S390_ISC_H #define _ASM_S390_ISC_H diff --git a/arch/s390/include/asm/itcw.h b/arch/s390/include/asm/itcw.h index fb1bedd3dc0d..59b73961320d 100644 --- a/arch/s390/include/asm/itcw.h +++ b/arch/s390/include/asm/itcw.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * Functions for incremental construction of fcx enabled I/O control blocks. * diff --git a/arch/s390/include/asm/jump_label.h b/arch/s390/include/asm/jump_label.h index 9be198f5ee79..40f651292aa7 100644 --- a/arch/s390/include/asm/jump_label.h +++ b/arch/s390/include/asm/jump_label.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifndef _ASM_S390_JUMP_LABEL_H #define _ASM_S390_JUMP_LABEL_H diff --git a/arch/s390/include/asm/kdebug.h b/arch/s390/include/asm/kdebug.h index 5c1abd47612a..d5327f064799 100644 --- a/arch/s390/include/asm/kdebug.h +++ b/arch/s390/include/asm/kdebug.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifndef _S390_KDEBUG_H #define _S390_KDEBUG_H diff --git a/arch/s390/include/asm/kexec.h b/arch/s390/include/asm/kexec.h index dccf24ee26d3..1d708a419326 100644 --- a/arch/s390/include/asm/kexec.h +++ b/arch/s390/include/asm/kexec.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * Copyright IBM Corp. 2005 * diff --git a/arch/s390/include/asm/kvm_host.h b/arch/s390/include/asm/kvm_host.h index a409d5991934..51375e766e90 100644 --- a/arch/s390/include/asm/kvm_host.h +++ b/arch/s390/include/asm/kvm_host.h @@ -226,7 +226,9 @@ struct kvm_s390_sie_block { #define ECB3_RI 0x01 __u8 ecb3; /* 0x0063 */ __u32 scaol; /* 0x0064 */ - __u8 reserved68[4]; /* 0x0068 */ + __u8 reserved68; /* 0x0068 */ + __u8 epdx; /* 0x0069 */ + __u8 reserved6a[2]; /* 0x006a */ __u32 todpr; /* 0x006c */ __u8 reserved70[16]; /* 0x0070 */ __u64 mso; /* 0x0080 */ @@ -265,6 +267,7 @@ struct kvm_s390_sie_block { __u64 cbrlo; /* 0x01b8 */ __u8 reserved1c0[8]; /* 0x01c0 */ #define ECD_HOSTREGMGMT 0x20000000 +#define ECD_MEF 0x08000000 __u32 ecd; /* 0x01c8 */ __u8 reserved1cc[18]; /* 0x01cc */ __u64 pp; /* 0x01de */ @@ -739,6 +742,7 @@ struct kvm_arch{ struct kvm_s390_cpu_model model; struct kvm_s390_crypto crypto; struct kvm_s390_vsie vsie; + u8 epdx; u64 epoch; struct kvm_s390_migration_state *migration_state; /* subset of available cpu features enabled by user space */ diff --git a/arch/s390/include/asm/linkage.h b/arch/s390/include/asm/linkage.h index 27da78cf416d..1b95da3fdd64 100644 --- a/arch/s390/include/asm/linkage.h +++ b/arch/s390/include/asm/linkage.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifndef __ASM_LINKAGE_H #define __ASM_LINKAGE_H diff --git a/arch/s390/include/asm/lowcore.h b/arch/s390/include/asm/lowcore.h index 8a5b082797f8..917f7344cab6 100644 --- a/arch/s390/include/asm/lowcore.h +++ b/arch/s390/include/asm/lowcore.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * Copyright IBM Corp. 1999, 2012 * Author(s): Hartmut Penner <hp@de.ibm.com>, @@ -95,46 +96,46 @@ struct lowcore { __u64 int_clock; /* 0x0310 */ __u64 mcck_clock; /* 0x0318 */ __u64 clock_comparator; /* 0x0320 */ + __u64 boot_clock[2]; /* 0x0328 */ /* Current process. */ - __u64 current_task; /* 0x0328 */ - __u8 pad_0x318[0x320-0x318]; /* 0x0330 */ - __u64 kernel_stack; /* 0x0338 */ + __u64 current_task; /* 0x0338 */ + __u64 kernel_stack; /* 0x0340 */ /* Interrupt, panic and restart stack. */ - __u64 async_stack; /* 0x0340 */ - __u64 panic_stack; /* 0x0348 */ - __u64 restart_stack; /* 0x0350 */ + __u64 async_stack; /* 0x0348 */ + __u64 panic_stack; /* 0x0350 */ + __u64 restart_stack; /* 0x0358 */ /* Restart function and parameter. */ - __u64 restart_fn; /* 0x0358 */ - __u64 restart_data; /* 0x0360 */ - __u64 restart_source; /* 0x0368 */ + __u64 restart_fn; /* 0x0360 */ + __u64 restart_data; /* 0x0368 */ + __u64 restart_source; /* 0x0370 */ /* Address space pointer. */ - __u64 kernel_asce; /* 0x0370 */ - __u64 user_asce; /* 0x0378 */ + __u64 kernel_asce; /* 0x0378 */ + __u64 user_asce; /* 0x0380 */ /* * The lpp and current_pid fields form a * 64-bit value that is set as program * parameter with the LPP instruction. */ - __u32 lpp; /* 0x0380 */ - __u32 current_pid; /* 0x0384 */ + __u32 lpp; /* 0x0388 */ + __u32 current_pid; /* 0x038c */ /* SMP info area */ - __u32 cpu_nr; /* 0x0388 */ - __u32 softirq_pending; /* 0x038c */ - __u64 percpu_offset; /* 0x0390 */ - __u64 vdso_per_cpu_data; /* 0x0398 */ - __u64 machine_flags; /* 0x03a0 */ - __u32 preempt_count; /* 0x03a8 */ - __u8 pad_0x03ac[0x03b0-0x03ac]; /* 0x03ac */ - __u64 gmap; /* 0x03b0 */ - __u32 spinlock_lockval; /* 0x03b8 */ - __u32 fpu_flags; /* 0x03bc */ - __u8 pad_0x03c0[0x0400-0x03c0]; /* 0x03c0 */ + __u32 cpu_nr; /* 0x0390 */ + __u32 softirq_pending; /* 0x0394 */ + __u64 percpu_offset; /* 0x0398 */ + __u64 vdso_per_cpu_data; /* 0x03a0 */ + __u64 machine_flags; /* 0x03a8 */ + __u32 preempt_count; /* 0x03b0 */ + __u8 pad_0x03b4[0x03b8-0x03b4]; /* 0x03b4 */ + __u64 gmap; /* 0x03b8 */ + __u32 spinlock_lockval; /* 0x03c0 */ + __u32 fpu_flags; /* 0x03c4 */ + __u8 pad_0x03c8[0x0400-0x03c8]; /* 0x03c8 */ /* Per cpu primary space access list */ __u32 paste[16]; /* 0x0400 */ diff --git a/arch/s390/include/asm/mman.h b/arch/s390/include/asm/mman.h deleted file mode 100644 index b79813d9cf68..000000000000 --- a/arch/s390/include/asm/mman.h +++ /dev/null @@ -1,11 +0,0 @@ -/* - * S390 version - * - * Derived from "include/asm-i386/mman.h" - */ -#ifndef __S390_MMAN_H__ -#define __S390_MMAN_H__ - -#include <uapi/asm/mman.h> - -#endif /* __S390_MMAN_H__ */ diff --git a/arch/s390/include/asm/mmu.h b/arch/s390/include/asm/mmu.h index bd6f30304518..db35c41a59d5 100644 --- a/arch/s390/include/asm/mmu.h +++ b/arch/s390/include/asm/mmu.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifndef __MMU_H #define __MMU_H @@ -5,12 +6,11 @@ #include <linux/errno.h> typedef struct { + spinlock_t lock; cpumask_t cpu_attach_mask; atomic_t flush_count; unsigned int flush_mm; - spinlock_t pgtable_lock; struct list_head pgtable_list; - spinlock_t gmap_lock; struct list_head gmap_list; unsigned long gmap_asce; unsigned long asce; @@ -27,10 +27,8 @@ typedef struct { } mm_context_t; #define INIT_MM_CONTEXT(name) \ - .context.pgtable_lock = \ - __SPIN_LOCK_UNLOCKED(name.context.pgtable_lock), \ + .context.lock = __SPIN_LOCK_UNLOCKED(name.context.lock), \ .context.pgtable_list = LIST_HEAD_INIT(name.context.pgtable_list), \ - .context.gmap_lock = __SPIN_LOCK_UNLOCKED(name.context.gmap_lock), \ .context.gmap_list = LIST_HEAD_INIT(name.context.gmap_list), static inline int tprot(unsigned long addr) diff --git a/arch/s390/include/asm/mmu_context.h b/arch/s390/include/asm/mmu_context.h index 4541ac44b35f..43607bb12cc2 100644 --- a/arch/s390/include/asm/mmu_context.h +++ b/arch/s390/include/asm/mmu_context.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * S390 version * @@ -12,13 +13,13 @@ #include <linux/mm_types.h> #include <asm/tlbflush.h> #include <asm/ctl_reg.h> +#include <asm-generic/mm_hooks.h> static inline int init_new_context(struct task_struct *tsk, struct mm_struct *mm) { - spin_lock_init(&mm->context.pgtable_lock); + spin_lock_init(&mm->context.lock); INIT_LIST_HEAD(&mm->context.pgtable_list); - spin_lock_init(&mm->context.gmap_lock); INIT_LIST_HEAD(&mm->context.gmap_list); cpumask_clear(&mm->context.cpu_attach_mask); atomic_set(&mm->context.flush_count, 0); @@ -33,7 +34,7 @@ static inline int init_new_context(struct task_struct *tsk, mm->context.use_cmma = 0; #endif switch (mm->context.asce_limit) { - case 1UL << 42: + case _REGION2_SIZE: /* * forked 3-level task, fall through to set new asce with new * mm->pgd @@ -44,12 +45,17 @@ static inline int init_new_context(struct task_struct *tsk, mm->context.asce = __pa(mm->pgd) | _ASCE_TABLE_LENGTH | _ASCE_USER_BITS | _ASCE_TYPE_REGION3; break; - case 1UL << 53: + case -PAGE_SIZE: + /* forked 5-level task, set new asce with new_mm->pgd */ + mm->context.asce = __pa(mm->pgd) | _ASCE_TABLE_LENGTH | + _ASCE_USER_BITS | _ASCE_TYPE_REGION1; + break; + case _REGION1_SIZE: /* forked 4-level task, set new asce with new mm->pgd */ mm->context.asce = __pa(mm->pgd) | _ASCE_TABLE_LENGTH | _ASCE_USER_BITS | _ASCE_TYPE_REGION2; break; - case 1UL << 31: + case _REGION3_SIZE: /* forked 2-level compat task, set new asce with new mm->pgd */ mm->context.asce = __pa(mm->pgd) | _ASCE_TABLE_LENGTH | _ASCE_USER_BITS | _ASCE_TYPE_SEGMENT; @@ -97,7 +103,6 @@ static inline void switch_mm(struct mm_struct *prev, struct mm_struct *next, if (prev == next) return; cpumask_set_cpu(cpu, &next->context.cpu_attach_mask); - cpumask_set_cpu(cpu, mm_cpumask(next)); /* Clear old ASCE by loading the kernel ASCE. */ __ctl_load(S390_lowcore.kernel_asce, 1, 1); __ctl_load(S390_lowcore.kernel_asce, 7, 7); @@ -115,9 +120,8 @@ static inline void finish_arch_post_lock_switch(void) preempt_disable(); while (atomic_read(&mm->context.flush_count)) cpu_relax(); - - if (mm->context.flush_mm) - __tlb_flush_mm(mm); + cpumask_set_cpu(smp_processor_id(), mm_cpumask(mm)); + __tlb_flush_mm_lazy(mm); preempt_enable(); } set_fs(current->thread.mm_segment); @@ -130,33 +134,8 @@ static inline void activate_mm(struct mm_struct *prev, struct mm_struct *next) { switch_mm(prev, next, current); + cpumask_set_cpu(smp_processor_id(), mm_cpumask(next)); set_user_asce(next); } -static inline void arch_dup_mmap(struct mm_struct *oldmm, - struct mm_struct *mm) -{ -} - -static inline void arch_exit_mmap(struct mm_struct *mm) -{ -} - -static inline void arch_unmap(struct mm_struct *mm, - struct vm_area_struct *vma, - unsigned long start, unsigned long end) -{ -} - -static inline void arch_bprm_mm_init(struct mm_struct *mm, - struct vm_area_struct *vma) -{ -} - -static inline bool arch_vma_access_permitted(struct vm_area_struct *vma, - bool write, bool execute, bool foreign) -{ - /* by default, allow everything */ - return true; -} #endif /* __S390_MMU_CONTEXT_H */ diff --git a/arch/s390/include/asm/mmzone.h b/arch/s390/include/asm/mmzone.h index a9e834e60b84..73e3e7c6976c 100644 --- a/arch/s390/include/asm/mmzone.h +++ b/arch/s390/include/asm/mmzone.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * NUMA support for s390 * diff --git a/arch/s390/include/asm/module.h b/arch/s390/include/asm/module.h index df1f861a848a..e0a6d29846e2 100644 --- a/arch/s390/include/asm/module.h +++ b/arch/s390/include/asm/module.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifndef _ASM_S390_MODULE_H #define _ASM_S390_MODULE_H diff --git a/arch/s390/include/asm/nmi.h b/arch/s390/include/asm/nmi.h index 9d91cf3e427f..c8a7beadd3d4 100644 --- a/arch/s390/include/asm/nmi.h +++ b/arch/s390/include/asm/nmi.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * Machine check handler definitions * @@ -72,7 +73,7 @@ union mci { u64 ar : 1; /* 33 access register validity */ u64 da : 1; /* 34 delayed access exception */ u64 : 1; /* 35 */ - u64 gs : 1; /* 36 guarded storage registers */ + u64 gs : 1; /* 36 guarded storage registers validity */ u64 : 5; /* 37-41 */ u64 pr : 1; /* 42 tod programmable register validity */ u64 fc : 1; /* 43 fp control register validity */ diff --git a/arch/s390/include/asm/numa.h b/arch/s390/include/asm/numa.h index dc19ee0c92aa..35f8cbe7e5bb 100644 --- a/arch/s390/include/asm/numa.h +++ b/arch/s390/include/asm/numa.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * NUMA support for s390 * diff --git a/arch/s390/include/asm/os_info.h b/arch/s390/include/asm/os_info.h index 943475382d51..3c89279d2a4b 100644 --- a/arch/s390/include/asm/os_info.h +++ b/arch/s390/include/asm/os_info.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * OS info memory interface * diff --git a/arch/s390/include/asm/page-states.h b/arch/s390/include/asm/page-states.h index 42267a2fe29e..c33c4deb545f 100644 --- a/arch/s390/include/asm/page-states.h +++ b/arch/s390/include/asm/page-states.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * Copyright IBM Corp. 2017 * Author(s): Claudio Imbrenda <imbrenda@linux.vnet.ibm.com> @@ -13,7 +14,8 @@ #define ESSA_SET_POT_VOLATILE 4 #define ESSA_SET_STABLE_RESIDENT 5 #define ESSA_SET_STABLE_IF_RESIDENT 6 +#define ESSA_SET_STABLE_NODAT 7 -#define ESSA_MAX ESSA_SET_STABLE_IF_RESIDENT +#define ESSA_MAX ESSA_SET_STABLE_NODAT #endif diff --git a/arch/s390/include/asm/page.h b/arch/s390/include/asm/page.h index 624deaa44230..41e3908b397f 100644 --- a/arch/s390/include/asm/page.h +++ b/arch/s390/include/asm/page.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * S390 version * Copyright IBM Corp. 1999, 2000 @@ -10,10 +11,14 @@ #include <linux/const.h> #include <asm/types.h> +#define _PAGE_SHIFT 12 +#define _PAGE_SIZE (_AC(1, UL) << _PAGE_SHIFT) +#define _PAGE_MASK (~(_PAGE_SIZE - 1)) + /* PAGE_SHIFT determines the page size */ -#define PAGE_SHIFT 12 -#define PAGE_SIZE (_AC(1,UL) << PAGE_SHIFT) -#define PAGE_MASK (~(PAGE_SIZE-1)) +#define PAGE_SHIFT _PAGE_SHIFT +#define PAGE_SIZE _PAGE_SIZE +#define PAGE_MASK _PAGE_MASK #define PAGE_DEFAULT_ACC 0 #define PAGE_DEFAULT_KEY (PAGE_DEFAULT_ACC << 4) @@ -133,6 +138,9 @@ static inline int page_reset_referenced(unsigned long addr) struct page; void arch_free_page(struct page *page, int order); void arch_alloc_page(struct page *page, int order); +void arch_set_page_dat(struct page *page, int order); +void arch_set_page_nodat(struct page *page, int order); +int arch_test_page_nodat(struct page *page); void arch_set_page_states(int make_stable); static inline int devmem_is_allowed(unsigned long pfn) @@ -145,16 +153,26 @@ static inline int devmem_is_allowed(unsigned long pfn) #endif /* !__ASSEMBLY__ */ -#define __PAGE_OFFSET 0x0UL -#define PAGE_OFFSET 0x0UL -#define __pa(x) (unsigned long)(x) -#define __va(x) (void *)(unsigned long)(x) -#define virt_to_page(kaddr) pfn_to_page(__pa(kaddr) >> PAGE_SHIFT) -#define page_to_phys(page) (page_to_pfn(page) << PAGE_SHIFT) -#define virt_addr_valid(kaddr) pfn_valid(__pa(kaddr) >> PAGE_SHIFT) +#define __PAGE_OFFSET 0x0UL +#define PAGE_OFFSET 0x0UL + +#define __pa(x) ((unsigned long)(x)) +#define __va(x) ((void *)(unsigned long)(x)) + +#define virt_to_pfn(kaddr) (__pa(kaddr) >> PAGE_SHIFT) #define pfn_to_virt(pfn) __va((pfn) << PAGE_SHIFT) + +#define virt_to_page(kaddr) pfn_to_page(virt_to_pfn(kaddr)) #define page_to_virt(page) pfn_to_virt(page_to_pfn(page)) +#define phys_to_pfn(kaddr) ((kaddr) >> PAGE_SHIFT) +#define pfn_to_phys(pfn) ((pfn) << PAGE_SHIFT) + +#define phys_to_page(kaddr) pfn_to_page(phys_to_pfn(kaddr)) +#define page_to_phys(page) (page_to_pfn(page) << PAGE_SHIFT) + +#define virt_addr_valid(kaddr) pfn_valid(__pa(kaddr) >> PAGE_SHIFT) + #define VM_DATA_DEFAULT_FLAGS (VM_READ | VM_WRITE | \ VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC) diff --git a/arch/s390/include/asm/pci.h b/arch/s390/include/asm/pci.h index f36b4b726057..12fe3591034f 100644 --- a/arch/s390/include/asm/pci.h +++ b/arch/s390/include/asm/pci.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifndef __ASM_S390_PCI_H #define __ASM_S390_PCI_H @@ -8,6 +9,7 @@ #include <linux/pci.h> #include <linux/mutex.h> +#include <linux/iommu.h> #include <asm-generic/pci.h> #include <asm/pci_clp.h> #include <asm/pci_debug.h> @@ -122,6 +124,8 @@ struct zpci_dev { unsigned long iommu_pages; unsigned int next_bit; + struct iommu_device iommu_dev; /* IOMMU core handle */ + char res_name[16]; struct zpci_bar_struct bars[PCI_BAR_COUNT]; @@ -174,6 +178,10 @@ int clp_enable_fh(struct zpci_dev *, u8); int clp_disable_fh(struct zpci_dev *); int clp_get_state(u32 fid, enum zpci_state *state); +/* IOMMU Interface */ +int zpci_init_iommu(struct zpci_dev *zdev); +void zpci_destroy_iommu(struct zpci_dev *zdev); + #ifdef CONFIG_PCI /* Error handling and recovery */ void zpci_event_error(void *); diff --git a/arch/s390/include/asm/pci_clp.h b/arch/s390/include/asm/pci_clp.h index 938b8cc19fc6..b3b31b31f0d3 100644 --- a/arch/s390/include/asm/pci_clp.h +++ b/arch/s390/include/asm/pci_clp.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifndef _ASM_S390_PCI_CLP_H #define _ASM_S390_PCI_CLP_H diff --git a/arch/s390/include/asm/pci_debug.h b/arch/s390/include/asm/pci_debug.h index ac24b26fc065..6c2c38060f8b 100644 --- a/arch/s390/include/asm/pci_debug.h +++ b/arch/s390/include/asm/pci_debug.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifndef _S390_ASM_PCI_DEBUG_H #define _S390_ASM_PCI_DEBUG_H diff --git a/arch/s390/include/asm/pci_dma.h b/arch/s390/include/asm/pci_dma.h index 92df3eb8d14e..e8d9161fa17a 100644 --- a/arch/s390/include/asm/pci_dma.h +++ b/arch/s390/include/asm/pci_dma.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifndef _ASM_S390_PCI_DMA_H #define _ASM_S390_PCI_DMA_H diff --git a/arch/s390/include/asm/pci_insn.h b/arch/s390/include/asm/pci_insn.h index 34abcf275799..419e83fa4721 100644 --- a/arch/s390/include/asm/pci_insn.h +++ b/arch/s390/include/asm/pci_insn.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifndef _ASM_S390_PCI_INSN_H #define _ASM_S390_PCI_INSN_H diff --git a/arch/s390/include/asm/pci_io.h b/arch/s390/include/asm/pci_io.h index 69aa18be61af..cbb9cb9c6547 100644 --- a/arch/s390/include/asm/pci_io.h +++ b/arch/s390/include/asm/pci_io.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifndef _ASM_S390_PCI_IO_H #define _ASM_S390_PCI_IO_H diff --git a/arch/s390/include/asm/percpu.h b/arch/s390/include/asm/percpu.h index 90240dfef76a..0095ddb58ff6 100644 --- a/arch/s390/include/asm/percpu.h +++ b/arch/s390/include/asm/percpu.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifndef __ARCH_S390_PERCPU__ #define __ARCH_S390_PERCPU__ diff --git a/arch/s390/include/asm/perf_event.h b/arch/s390/include/asm/perf_event.h index dd32beb9d30c..79aa6421fedb 100644 --- a/arch/s390/include/asm/perf_event.h +++ b/arch/s390/include/asm/perf_event.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * Performance event support - s390 specific definitions. * diff --git a/arch/s390/include/asm/pgalloc.h b/arch/s390/include/asm/pgalloc.h index bb0ff1bb0c4a..bbe99cb8219d 100644 --- a/arch/s390/include/asm/pgalloc.h +++ b/arch/s390/include/asm/pgalloc.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * S390 version * Copyright IBM Corp. 1999, 2000 @@ -15,6 +16,8 @@ #include <linux/gfp.h> #include <linux/mm.h> +#define CRST_ALLOC_ORDER 2 + unsigned long *crst_table_alloc(struct mm_struct *); void crst_table_free(struct mm_struct *, unsigned long *); @@ -42,16 +45,16 @@ static inline void clear_table(unsigned long *s, unsigned long val, size_t n) static inline void crst_table_init(unsigned long *crst, unsigned long entry) { - clear_table(crst, entry, sizeof(unsigned long)*2048); + clear_table(crst, entry, _CRST_TABLE_SIZE); } static inline unsigned long pgd_entry_type(struct mm_struct *mm) { - if (mm->context.asce_limit <= (1UL << 31)) + if (mm->context.asce_limit <= _REGION3_SIZE) return _SEGMENT_ENTRY_EMPTY; - if (mm->context.asce_limit <= (1UL << 42)) + if (mm->context.asce_limit <= _REGION2_SIZE) return _REGION3_ENTRY_EMPTY; - if (mm->context.asce_limit <= (1UL << 53)) + if (mm->context.asce_limit <= _REGION1_SIZE) return _REGION2_ENTRY_EMPTY; return _REGION1_ENTRY_EMPTY; } @@ -119,7 +122,7 @@ static inline pgd_t *pgd_alloc(struct mm_struct *mm) if (!table) return NULL; - if (mm->context.asce_limit == (1UL << 31)) { + if (mm->context.asce_limit == _REGION3_SIZE) { /* Forking a compat process with 2 page table levels */ if (!pgtable_pmd_page_ctor(virt_to_page(table))) { crst_table_free(mm, table); @@ -131,7 +134,7 @@ static inline pgd_t *pgd_alloc(struct mm_struct *mm) static inline void pgd_free(struct mm_struct *mm, pgd_t *pgd) { - if (mm->context.asce_limit == (1UL << 31)) + if (mm->context.asce_limit == _REGION3_SIZE) pgtable_pmd_page_dtor(virt_to_page(pgd)); crst_table_free(mm, (unsigned long *) pgd); } @@ -158,4 +161,8 @@ static inline void pmd_populate(struct mm_struct *mm, extern void rcu_table_freelist_finish(void); +void vmem_map_init(void); +void *vmem_crst_alloc(unsigned long val); +pte_t *vmem_pte_alloc(void); + #endif /* _S390_PGALLOC_H */ diff --git a/arch/s390/include/asm/pgtable.h b/arch/s390/include/asm/pgtable.h index 57057fb1cc07..d7fe9838084d 100644 --- a/arch/s390/include/asm/pgtable.h +++ b/arch/s390/include/asm/pgtable.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * S390 version * Copyright IBM Corp. 1999, 2000 @@ -11,19 +12,6 @@ #ifndef _ASM_S390_PGTABLE_H #define _ASM_S390_PGTABLE_H -/* - * The Linux memory management assumes a three-level page table setup. - * For s390 64 bit we use up to four of the five levels the hardware - * provides (region first tables are not used). - * - * The "pgd_xxx()" functions are trivial for a folded two-level - * setup: the pgd is never bad, and a pmd always exists (as it's folded - * into the pgd entry) - * - * This file contains the functions and defines necessary to modify and use - * the S390 page table tree. - */ -#ifndef __ASSEMBLY__ #include <linux/sched.h> #include <linux/mm_types.h> #include <linux/page-flags.h> @@ -34,9 +22,6 @@ extern pgd_t swapper_pg_dir[]; extern void paging_init(void); -extern void vmem_map_init(void); -pmd_t *vmem_pmd_alloc(void); -pte_t *vmem_pte_alloc(void); enum { PG_DIRECT_MAP_4K = 0, @@ -77,38 +62,6 @@ extern unsigned long zero_page_mask; #define __HAVE_COLOR_ZERO_PAGE /* TODO: s390 cannot support io_remap_pfn_range... */ -#endif /* !__ASSEMBLY__ */ - -/* - * PMD_SHIFT determines the size of the area a second-level page - * table can map - * PGDIR_SHIFT determines what a third-level page table entry can map - */ -#define PMD_SHIFT 20 -#define PUD_SHIFT 31 -#define P4D_SHIFT 42 -#define PGDIR_SHIFT 53 - -#define PMD_SIZE (1UL << PMD_SHIFT) -#define PMD_MASK (~(PMD_SIZE-1)) -#define PUD_SIZE (1UL << PUD_SHIFT) -#define PUD_MASK (~(PUD_SIZE-1)) -#define P4D_SIZE (1UL << P4D_SHIFT) -#define P4D_MASK (~(P4D_SIZE-1)) -#define PGDIR_SIZE (1UL << PGDIR_SHIFT) -#define PGDIR_MASK (~(PGDIR_SIZE-1)) - -/* - * entries per page directory level: the S390 is two-level, so - * we don't really have any PMD directory physically. - * for S390 segment-table entries are combined to one PGD - * that leads to 1024 pte per pgd - */ -#define PTRS_PER_PTE 256 -#define PTRS_PER_PMD 2048 -#define PTRS_PER_PUD 2048 -#define PTRS_PER_P4D 2048 -#define PTRS_PER_PGD 2048 #define FIRST_USER_ADDRESS 0UL @@ -123,7 +76,6 @@ extern unsigned long zero_page_mask; #define pgd_ERROR(e) \ printk("%s:%d: bad pgd %p.\n", __FILE__, __LINE__, (void *) pgd_val(e)) -#ifndef __ASSEMBLY__ /* * The vmalloc and module area will always be on the topmost area of the * kernel mapping. We reserve 128GB (64bit) for vmalloc and modules. @@ -269,7 +221,7 @@ static inline int is_module_addr(void *addr) */ /* Bits in the segment/region table address-space-control-element */ -#define _ASCE_ORIGIN ~0xfffUL/* segment table origin */ +#define _ASCE_ORIGIN ~0xfffUL/* region/segment table origin */ #define _ASCE_PRIVATE_SPACE 0x100 /* private space control */ #define _ASCE_ALT_EVENT 0x80 /* storage alteration event control */ #define _ASCE_SPACE_SWITCH 0x40 /* space switch event */ @@ -320,9 +272,9 @@ static inline int is_module_addr(void *addr) #define _SEGMENT_ENTRY_BITS 0xfffffffffffffe33UL #define _SEGMENT_ENTRY_BITS_LARGE 0xfffffffffff0ff33UL #define _SEGMENT_ENTRY_ORIGIN_LARGE ~0xfffffUL /* large page address */ -#define _SEGMENT_ENTRY_ORIGIN ~0x7ffUL/* segment table origin */ -#define _SEGMENT_ENTRY_PROTECT 0x200 /* page protection bit */ -#define _SEGMENT_ENTRY_NOEXEC 0x100 /* region no-execute bit */ +#define _SEGMENT_ENTRY_ORIGIN ~0x7ffUL/* page table origin */ +#define _SEGMENT_ENTRY_PROTECT 0x200 /* segment protection bit */ +#define _SEGMENT_ENTRY_NOEXEC 0x100 /* segment no-execute bit */ #define _SEGMENT_ENTRY_INVALID 0x20 /* invalid segment table entry */ #define _SEGMENT_ENTRY (0) @@ -340,6 +292,54 @@ static inline int is_module_addr(void *addr) #define _SEGMENT_ENTRY_SOFT_DIRTY 0x0000 /* SW segment soft dirty bit */ #endif +#define _CRST_ENTRIES 2048 /* number of region/segment table entries */ +#define _PAGE_ENTRIES 256 /* number of page table entries */ + +#define _CRST_TABLE_SIZE (_CRST_ENTRIES * 8) +#define _PAGE_TABLE_SIZE (_PAGE_ENTRIES * 8) + +#define _REGION1_SHIFT 53 +#define _REGION2_SHIFT 42 +#define _REGION3_SHIFT 31 +#define _SEGMENT_SHIFT 20 + +#define _REGION1_INDEX (0x7ffUL << _REGION1_SHIFT) +#define _REGION2_INDEX (0x7ffUL << _REGION2_SHIFT) +#define _REGION3_INDEX (0x7ffUL << _REGION3_SHIFT) +#define _SEGMENT_INDEX (0x7ffUL << _SEGMENT_SHIFT) +#define _PAGE_INDEX (0xffUL << _PAGE_SHIFT) + +#define _REGION1_SIZE (1UL << _REGION1_SHIFT) +#define _REGION2_SIZE (1UL << _REGION2_SHIFT) +#define _REGION3_SIZE (1UL << _REGION3_SHIFT) +#define _SEGMENT_SIZE (1UL << _SEGMENT_SHIFT) + +#define _REGION1_MASK (~(_REGION1_SIZE - 1)) +#define _REGION2_MASK (~(_REGION2_SIZE - 1)) +#define _REGION3_MASK (~(_REGION3_SIZE - 1)) +#define _SEGMENT_MASK (~(_SEGMENT_SIZE - 1)) + +#define PMD_SHIFT _SEGMENT_SHIFT +#define PUD_SHIFT _REGION3_SHIFT +#define P4D_SHIFT _REGION2_SHIFT +#define PGDIR_SHIFT _REGION1_SHIFT + +#define PMD_SIZE _SEGMENT_SIZE +#define PUD_SIZE _REGION3_SIZE +#define P4D_SIZE _REGION2_SIZE +#define PGDIR_SIZE _REGION1_SIZE + +#define PMD_MASK _SEGMENT_MASK +#define PUD_MASK _REGION3_MASK +#define P4D_MASK _REGION2_MASK +#define PGDIR_MASK _REGION1_MASK + +#define PTRS_PER_PTE _PAGE_ENTRIES +#define PTRS_PER_PMD _CRST_ENTRIES +#define PTRS_PER_PUD _CRST_ENTRIES +#define PTRS_PER_P4D _CRST_ENTRIES +#define PTRS_PER_PGD _CRST_ENTRIES + /* * Segment table and region3 table entry encoding * (R = read-only, I = invalid, y = young bit): @@ -376,6 +376,7 @@ static inline int is_module_addr(void *addr) /* Guest Page State used for virtualization */ #define _PGSTE_GPS_ZERO 0x0000000080000000UL +#define _PGSTE_GPS_NODAT 0x0000000040000000UL #define _PGSTE_GPS_USAGE_MASK 0x0000000003000000UL #define _PGSTE_GPS_USAGE_STABLE 0x0000000000000000UL #define _PGSTE_GPS_USAGE_UNUSED 0x0000000001000000UL @@ -505,7 +506,7 @@ static inline int mm_alloc_pgste(struct mm_struct *mm) * In the case that a guest uses storage keys * faults should no longer be backed by zero pages */ -#define mm_forbids_zeropage mm_use_skey +#define mm_forbids_zeropage mm_has_pgste static inline int mm_use_skey(struct mm_struct *mm) { #ifdef CONFIG_PGSTE @@ -952,15 +953,30 @@ static inline pte_t pte_mkhuge(pte_t pte) #define IPTE_GLOBAL 0 #define IPTE_LOCAL 1 -static inline void __ptep_ipte(unsigned long address, pte_t *ptep, int local) +#define IPTE_NODAT 0x400 +#define IPTE_GUEST_ASCE 0x800 + +static inline void __ptep_ipte(unsigned long address, pte_t *ptep, + unsigned long opt, unsigned long asce, + int local) { unsigned long pto = (unsigned long) ptep; - /* Invalidation + TLB flush for the pte */ + if (__builtin_constant_p(opt) && opt == 0) { + /* Invalidation + TLB flush for the pte */ + asm volatile( + " .insn rrf,0xb2210000,%[r1],%[r2],0,%[m4]" + : "+m" (*ptep) : [r1] "a" (pto), [r2] "a" (address), + [m4] "i" (local)); + return; + } + + /* Invalidate ptes with options + TLB flush of the ptes */ + opt = opt | (asce & _ASCE_ORIGIN); asm volatile( - " .insn rrf,0xb2210000,%[r1],%[r2],0,%[m4]" - : "+m" (*ptep) : [r1] "a" (pto), [r2] "a" (address), - [m4] "i" (local)); + " .insn rrf,0xb2210000,%[r1],%[r2],%[r3],%[m4]" + : [r2] "+a" (address), [r3] "+a" (opt) + : [r1] "a" (pto), [m4] "i" (local) : "memory"); } static inline void __ptep_ipte_range(unsigned long address, int nr, @@ -1341,31 +1357,61 @@ static inline void __pmdp_csp(pmd_t *pmdp) #define IDTE_GLOBAL 0 #define IDTE_LOCAL 1 -static inline void __pmdp_idte(unsigned long address, pmd_t *pmdp, int local) +#define IDTE_PTOA 0x0800 +#define IDTE_NODAT 0x1000 +#define IDTE_GUEST_ASCE 0x2000 + +static inline void __pmdp_idte(unsigned long addr, pmd_t *pmdp, + unsigned long opt, unsigned long asce, + int local) { unsigned long sto; - sto = (unsigned long) pmdp - pmd_index(address) * sizeof(pmd_t); - asm volatile( - " .insn rrf,0xb98e0000,%[r1],%[r2],0,%[m4]" - : "+m" (*pmdp) - : [r1] "a" (sto), [r2] "a" ((address & HPAGE_MASK)), - [m4] "i" (local) - : "cc" ); + sto = (unsigned long) pmdp - pmd_index(addr) * sizeof(pmd_t); + if (__builtin_constant_p(opt) && opt == 0) { + /* flush without guest asce */ + asm volatile( + " .insn rrf,0xb98e0000,%[r1],%[r2],0,%[m4]" + : "+m" (*pmdp) + : [r1] "a" (sto), [r2] "a" ((addr & HPAGE_MASK)), + [m4] "i" (local) + : "cc" ); + } else { + /* flush with guest asce */ + asm volatile( + " .insn rrf,0xb98e0000,%[r1],%[r2],%[r3],%[m4]" + : "+m" (*pmdp) + : [r1] "a" (sto), [r2] "a" ((addr & HPAGE_MASK) | opt), + [r3] "a" (asce), [m4] "i" (local) + : "cc" ); + } } -static inline void __pudp_idte(unsigned long address, pud_t *pudp, int local) +static inline void __pudp_idte(unsigned long addr, pud_t *pudp, + unsigned long opt, unsigned long asce, + int local) { unsigned long r3o; - r3o = (unsigned long) pudp - pud_index(address) * sizeof(pud_t); + r3o = (unsigned long) pudp - pud_index(addr) * sizeof(pud_t); r3o |= _ASCE_TYPE_REGION3; - asm volatile( - " .insn rrf,0xb98e0000,%[r1],%[r2],0,%[m4]" - : "+m" (*pudp) - : [r1] "a" (r3o), [r2] "a" ((address & PUD_MASK)), - [m4] "i" (local) - : "cc"); + if (__builtin_constant_p(opt) && opt == 0) { + /* flush without guest asce */ + asm volatile( + " .insn rrf,0xb98e0000,%[r1],%[r2],0,%[m4]" + : "+m" (*pudp) + : [r1] "a" (r3o), [r2] "a" ((addr & PUD_MASK)), + [m4] "i" (local) + : "cc"); + } else { + /* flush with guest asce */ + asm volatile( + " .insn rrf,0xb98e0000,%[r1],%[r2],%[r3],%[m4]" + : "+m" (*pudp) + : [r1] "a" (r3o), [r2] "a" ((addr & PUD_MASK) | opt), + [r3] "a" (asce), [m4] "i" (local) + : "cc" ); + } } pmd_t pmdp_xchg_direct(struct mm_struct *, unsigned long, pmd_t *, pmd_t); @@ -1462,7 +1508,9 @@ static inline pmd_t pmdp_huge_clear_flush(struct vm_area_struct *vma, static inline void pmdp_invalidate(struct vm_area_struct *vma, unsigned long addr, pmd_t *pmdp) { - pmdp_xchg_direct(vma->vm_mm, addr, pmdp, __pmd(_SEGMENT_ENTRY_EMPTY)); + pmd_t pmd = __pmd(pmd_val(*pmdp) | _SEGMENT_ENTRY_INVALID); + + pmdp_xchg_direct(vma->vm_mm, addr, pmdp, pmd); } #define __HAVE_ARCH_PMDP_SET_WRPROTECT @@ -1548,8 +1596,6 @@ static inline swp_entry_t __swp_entry(unsigned long type, unsigned long offset) #define __pte_to_swp_entry(pte) ((swp_entry_t) { pte_val(pte) }) #define __swp_entry_to_pte(x) ((pte_t) { (x).val }) -#endif /* !__ASSEMBLY__ */ - #define kern_addr_valid(addr) (1) extern int vmem_add_mapping(unsigned long start, unsigned long size); diff --git a/arch/s390/include/asm/pkey.h b/arch/s390/include/asm/pkey.h index 4c484590d858..053117ba7328 100644 --- a/arch/s390/include/asm/pkey.h +++ b/arch/s390/include/asm/pkey.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * Kernelspace interface to the pkey device driver * diff --git a/arch/s390/include/asm/preempt.h b/arch/s390/include/asm/preempt.h index b0776b2c8dcf..23a14d187fb1 100644 --- a/arch/s390/include/asm/preempt.h +++ b/arch/s390/include/asm/preempt.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifndef __ASM_PREEMPT_H #define __ASM_PREEMPT_H diff --git a/arch/s390/include/asm/processor.h b/arch/s390/include/asm/processor.h index c25d57e0aad3..9cf92abe23c3 100644 --- a/arch/s390/include/asm/processor.h +++ b/arch/s390/include/asm/processor.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * S390 version * Copyright IBM Corp. 1999 diff --git a/arch/s390/include/asm/ptrace.h b/arch/s390/include/asm/ptrace.h index 853b01245c20..2f84e77f1f1b 100644 --- a/arch/s390/include/asm/ptrace.h +++ b/arch/s390/include/asm/ptrace.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * S390 version * Copyright IBM Corp. 1999, 2000 diff --git a/arch/s390/include/asm/qdio.h b/arch/s390/include/asm/qdio.h index 998b61cd0e56..de11ecc99c7c 100644 --- a/arch/s390/include/asm/qdio.h +++ b/arch/s390/include/asm/qdio.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * Copyright IBM Corp. 2000, 2008 * Author(s): Utz Bacher <utz.bacher@de.ibm.com> @@ -80,7 +81,7 @@ struct qdr { u32 qkey : 4; u32 : 28; struct qdesfmt0 qdf0[126]; -} __attribute__ ((packed, aligned(4096))); +} __packed __aligned(PAGE_SIZE); #define QIB_AC_OUTBOUND_PCI_SUPPORTED 0x40 #define QIB_RFLAGS_ENABLE_QEBSM 0x80 diff --git a/arch/s390/include/asm/reset.h b/arch/s390/include/asm/reset.h index fe11fa88a0e0..6450b31ade03 100644 --- a/arch/s390/include/asm/reset.h +++ b/arch/s390/include/asm/reset.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * Copyright IBM Corp. 2006 * Author(s): Heiko Carstens <heiko.carstens@de.ibm.com> diff --git a/arch/s390/include/asm/runtime_instr.h b/arch/s390/include/asm/runtime_instr.h index 402ad6df4897..ea8896ba5afc 100644 --- a/arch/s390/include/asm/runtime_instr.h +++ b/arch/s390/include/asm/runtime_instr.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifndef _RUNTIME_INSTR_H #define _RUNTIME_INSTR_H diff --git a/arch/s390/include/asm/rwsem.h b/arch/s390/include/asm/rwsem.h index 597e7e96b59e..f731b7b518bd 100644 --- a/arch/s390/include/asm/rwsem.h +++ b/arch/s390/include/asm/rwsem.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifndef _S390_RWSEM_H #define _S390_RWSEM_H diff --git a/arch/s390/include/asm/schid.h b/arch/s390/include/asm/schid.h index 40b47dfa9d66..3ac405a67ff0 100644 --- a/arch/s390/include/asm/schid.h +++ b/arch/s390/include/asm/schid.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifndef ASM_SCHID_H #define ASM_SCHID_H diff --git a/arch/s390/include/asm/sclp.h b/arch/s390/include/asm/sclp.h index 6f5167bc1928..d3c1a8a2e3ad 100644 --- a/arch/s390/include/asm/sclp.h +++ b/arch/s390/include/asm/sclp.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * Copyright IBM Corp. 2007 * Author(s): Heiko Carstens <heiko.carstens@de.ibm.com> diff --git a/arch/s390/include/asm/scsw.h b/arch/s390/include/asm/scsw.h index 17a7904f001a..79b7ffa91832 100644 --- a/arch/s390/include/asm/scsw.h +++ b/arch/s390/include/asm/scsw.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * Helper functions for scsw access. * diff --git a/arch/s390/include/asm/seccomp.h b/arch/s390/include/asm/seccomp.h index e10f8337367b..795bbe0d7ca6 100644 --- a/arch/s390/include/asm/seccomp.h +++ b/arch/s390/include/asm/seccomp.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifndef _ASM_S390_SECCOMP_H #define _ASM_S390_SECCOMP_H diff --git a/arch/s390/include/asm/sections.h b/arch/s390/include/asm/sections.h index fbd9116eb17b..0ac3e8166e85 100644 --- a/arch/s390/include/asm/sections.h +++ b/arch/s390/include/asm/sections.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifndef _S390_SECTIONS_H #define _S390_SECTIONS_H diff --git a/arch/s390/include/asm/serial.h b/arch/s390/include/asm/serial.h index 5b3e48ef534b..aaf85a69061c 100644 --- a/arch/s390/include/asm/serial.h +++ b/arch/s390/include/asm/serial.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifndef _ASM_S390_SERIAL_H #define _ASM_S390_SERIAL_H diff --git a/arch/s390/include/asm/set_memory.h b/arch/s390/include/asm/set_memory.h index 46a4db44c47a..c59a83536c70 100644 --- a/arch/s390/include/asm/set_memory.h +++ b/arch/s390/include/asm/set_memory.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifndef _ASMS390_SET_MEMORY_H #define _ASMS390_SET_MEMORY_H diff --git a/arch/s390/include/asm/setup.h b/arch/s390/include/asm/setup.h index cd78155b1829..f2c2b7cd9099 100644 --- a/arch/s390/include/asm/setup.h +++ b/arch/s390/include/asm/setup.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * S390 version * Copyright IBM Corp. 1999, 2010 @@ -29,8 +30,10 @@ #define MACHINE_FLAG_TE _BITUL(11) #define MACHINE_FLAG_TLB_LC _BITUL(12) #define MACHINE_FLAG_VX _BITUL(13) -#define MACHINE_FLAG_NX _BITUL(14) -#define MACHINE_FLAG_GS _BITUL(15) +#define MACHINE_FLAG_TLB_GUEST _BITUL(14) +#define MACHINE_FLAG_NX _BITUL(15) +#define MACHINE_FLAG_GS _BITUL(16) +#define MACHINE_FLAG_SCC _BITUL(17) #define LPP_MAGIC _BITUL(31) #define LPP_PFAULT_PID_MASK _AC(0xffffffff, UL) @@ -68,8 +71,10 @@ extern void detect_memory_memblock(void); #define MACHINE_HAS_TE (S390_lowcore.machine_flags & MACHINE_FLAG_TE) #define MACHINE_HAS_TLB_LC (S390_lowcore.machine_flags & MACHINE_FLAG_TLB_LC) #define MACHINE_HAS_VX (S390_lowcore.machine_flags & MACHINE_FLAG_VX) +#define MACHINE_HAS_TLB_GUEST (S390_lowcore.machine_flags & MACHINE_FLAG_TLB_GUEST) #define MACHINE_HAS_NX (S390_lowcore.machine_flags & MACHINE_FLAG_NX) #define MACHINE_HAS_GS (S390_lowcore.machine_flags & MACHINE_FLAG_GS) +#define MACHINE_HAS_SCC (S390_lowcore.machine_flags & MACHINE_FLAG_SCC) /* * Console mode. Override with conmode= @@ -104,9 +109,16 @@ extern void pfault_fini(void); #define pfault_fini() do { } while (0) #endif /* CONFIG_PFAULT */ +#ifdef CONFIG_VMCP +void vmcp_cma_reserve(void); +#else +static inline void vmcp_cma_reserve(void) { } +#endif + void report_user_fault(struct pt_regs *regs, long signr, int is_mm_fault); -extern void cmma_init(void); +void cmma_init(void); +void cmma_init_nodat(void); extern void (*_machine_restart)(char *command); extern void (*_machine_halt)(void); diff --git a/arch/s390/include/asm/shmparam.h b/arch/s390/include/asm/shmparam.h index e985182738f8..e75d45649c54 100644 --- a/arch/s390/include/asm/shmparam.h +++ b/arch/s390/include/asm/shmparam.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * S390 version * diff --git a/arch/s390/include/asm/signal.h b/arch/s390/include/asm/signal.h index abf9e5735943..7daf4d8b5ee5 100644 --- a/arch/s390/include/asm/signal.h +++ b/arch/s390/include/asm/signal.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * S390 version * diff --git a/arch/s390/include/asm/sigp.h b/arch/s390/include/asm/sigp.h index 020a8814d511..53ee795cd3d3 100644 --- a/arch/s390/include/asm/sigp.h +++ b/arch/s390/include/asm/sigp.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifndef __S390_ASM_SIGP_H #define __S390_ASM_SIGP_H diff --git a/arch/s390/include/asm/smp.h b/arch/s390/include/asm/smp.h index 3deb134587b7..babe83ed416c 100644 --- a/arch/s390/include/asm/smp.h +++ b/arch/s390/include/asm/smp.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * Copyright IBM Corp. 1999, 2012 * Author(s): Denis Joseph Barrow, diff --git a/arch/s390/include/asm/sparsemem.h b/arch/s390/include/asm/sparsemem.h index 334e279f1bce..c549893602ea 100644 --- a/arch/s390/include/asm/sparsemem.h +++ b/arch/s390/include/asm/sparsemem.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifndef _ASM_S390_SPARSEMEM_H #define _ASM_S390_SPARSEMEM_H diff --git a/arch/s390/include/asm/spinlock.h b/arch/s390/include/asm/spinlock.h index f7838ecd83c6..f3f5e0155b10 100644 --- a/arch/s390/include/asm/spinlock.h +++ b/arch/s390/include/asm/spinlock.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * S390 version * Copyright IBM Corp. 1999 @@ -92,17 +93,11 @@ static inline void arch_spin_unlock(arch_spinlock_t *lp) { typecheck(int, lp->lock); asm volatile( - "st %1,%0\n" - : "+Q" (lp->lock) - : "d" (0) - : "cc", "memory"); -} - -static inline void arch_spin_unlock_wait(arch_spinlock_t *lock) -{ - while (arch_spin_is_locked(lock)) - arch_spin_relax(lock); - smp_acquire__after_ctrl_dep(); +#ifdef CONFIG_HAVE_MARCH_ZEC12_FEATURES + " .long 0xb2fa0070\n" /* NIAI 7 */ +#endif + " st %1,%0\n" + : "=Q" (lp->lock) : "d" (0) : "cc", "memory"); } /* diff --git a/arch/s390/include/asm/spinlock_types.h b/arch/s390/include/asm/spinlock_types.h index fe755eec275f..1861a0c5dd47 100644 --- a/arch/s390/include/asm/spinlock_types.h +++ b/arch/s390/include/asm/spinlock_types.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifndef __ASM_SPINLOCK_TYPES_H #define __ASM_SPINLOCK_TYPES_H diff --git a/arch/s390/include/asm/stp.h b/arch/s390/include/asm/stp.h index 7689727585b2..f0ddefb06ec8 100644 --- a/arch/s390/include/asm/stp.h +++ b/arch/s390/include/asm/stp.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * Copyright IBM Corp. 2006 * Author(s): Martin Schwidefsky (schwidefsky@de.ibm.com) diff --git a/arch/s390/include/asm/string.h b/arch/s390/include/asm/string.h index e5f5c7074f2c..27ce494198f5 100644 --- a/arch/s390/include/asm/string.h +++ b/arch/s390/include/asm/string.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * S390 version * Copyright IBM Corp. 1999 diff --git a/arch/s390/include/asm/switch_to.h b/arch/s390/include/asm/switch_to.h index f6c2b5814ab0..c21fe1d57c00 100644 --- a/arch/s390/include/asm/switch_to.h +++ b/arch/s390/include/asm/switch_to.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * Copyright IBM Corp. 1999, 2009 * diff --git a/arch/s390/include/asm/termios.h b/arch/s390/include/asm/termios.h index db028d17f061..46fa3020b41e 100644 --- a/arch/s390/include/asm/termios.h +++ b/arch/s390/include/asm/termios.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * S390 version * diff --git a/arch/s390/include/asm/thread_info.h b/arch/s390/include/asm/thread_info.h index 1aecf432c48d..0880a37b6d3b 100644 --- a/arch/s390/include/asm/thread_info.h +++ b/arch/s390/include/asm/thread_info.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * S390 version * Copyright IBM Corp. 2002, 2006 diff --git a/arch/s390/include/asm/timex.h b/arch/s390/include/asm/timex.h index 118535123f34..64539c221672 100644 --- a/arch/s390/include/asm/timex.h +++ b/arch/s390/include/asm/timex.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * S390 version * Copyright IBM Corp. 1999 @@ -15,6 +16,8 @@ /* The value of the TOD clock for 1.1.1970. */ #define TOD_UNIX_EPOCH 0x7d91048bca000000ULL +extern u64 clock_comparator_max; + /* Inline functions for clock register access. */ static inline int set_tod_clock(__u64 time) { @@ -126,7 +129,7 @@ static inline unsigned long long local_tick_disable(void) unsigned long long old; old = S390_lowcore.clock_comparator; - S390_lowcore.clock_comparator = -1ULL; + S390_lowcore.clock_comparator = clock_comparator_max; set_clock_comparator(S390_lowcore.clock_comparator); return old; } @@ -174,24 +177,24 @@ static inline cycles_t get_cycles(void) return (cycles_t) get_tod_clock() >> 2; } -int get_phys_clock(unsigned long long *clock); +int get_phys_clock(unsigned long *clock); void init_cpu_timer(void); unsigned long long monotonic_clock(void); -extern u64 sched_clock_base_cc; +extern unsigned char tod_clock_base[16] __aligned(8); /** * get_clock_monotonic - returns current time in clock rate units * * The caller must ensure that preemption is disabled. - * The clock and sched_clock_base get changed via stop_machine. + * The clock and tod_clock_base get changed via stop_machine. * Therefore preemption must be disabled when calling this * function, otherwise the returned value is not guaranteed to * be monotonic. */ static inline unsigned long long get_tod_clock_monotonic(void) { - return get_tod_clock() - sched_clock_base_cc; + return get_tod_clock() - *(unsigned long long *) &tod_clock_base[1]; } /** @@ -218,4 +221,32 @@ static inline unsigned long long tod_to_ns(unsigned long long todval) return ((todval >> 9) * 125) + (((todval & 0x1ff) * 125) >> 9); } +/** + * tod_after - compare two 64 bit TOD values + * @a: first 64 bit TOD timestamp + * @b: second 64 bit TOD timestamp + * + * Returns: true if a is later than b + */ +static inline int tod_after(unsigned long long a, unsigned long long b) +{ + if (MACHINE_HAS_SCC) + return (long long) a > (long long) b; + return a > b; +} + +/** + * tod_after_eq - compare two 64 bit TOD values + * @a: first 64 bit TOD timestamp + * @b: second 64 bit TOD timestamp + * + * Returns: true if a is later than b + */ +static inline int tod_after_eq(unsigned long long a, unsigned long long b) +{ + if (MACHINE_HAS_SCC) + return (long long) a >= (long long) b; + return a >= b; +} + #endif diff --git a/arch/s390/include/asm/tlb.h b/arch/s390/include/asm/tlb.h index 2eb8ff0d6fca..457b7ba0fbb6 100644 --- a/arch/s390/include/asm/tlb.h +++ b/arch/s390/include/asm/tlb.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifndef _S390_TLB_H #define _S390_TLB_H @@ -135,7 +136,7 @@ static inline void pte_free_tlb(struct mmu_gather *tlb, pgtable_t pte, static inline void pmd_free_tlb(struct mmu_gather *tlb, pmd_t *pmd, unsigned long address) { - if (tlb->mm->context.asce_limit <= (1UL << 31)) + if (tlb->mm->context.asce_limit <= _REGION3_SIZE) return; pgtable_pmd_page_dtor(virt_to_page(pmd)); tlb_remove_table(tlb, pmd); @@ -151,7 +152,7 @@ static inline void pmd_free_tlb(struct mmu_gather *tlb, pmd_t *pmd, static inline void p4d_free_tlb(struct mmu_gather *tlb, p4d_t *p4d, unsigned long address) { - if (tlb->mm->context.asce_limit <= (1UL << 53)) + if (tlb->mm->context.asce_limit <= _REGION1_SIZE) return; tlb_remove_table(tlb, p4d); } @@ -166,7 +167,7 @@ static inline void p4d_free_tlb(struct mmu_gather *tlb, p4d_t *p4d, static inline void pud_free_tlb(struct mmu_gather *tlb, pud_t *pud, unsigned long address) { - if (tlb->mm->context.asce_limit <= (1UL << 42)) + if (tlb->mm->context.asce_limit <= _REGION2_SIZE) return; tlb_remove_table(tlb, pud); } diff --git a/arch/s390/include/asm/tlbflush.h b/arch/s390/include/asm/tlbflush.h index 39846100682a..8c840f0904f3 100644 --- a/arch/s390/include/asm/tlbflush.h +++ b/arch/s390/include/asm/tlbflush.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifndef _S390_TLBFLUSH_H #define _S390_TLBFLUSH_H @@ -20,10 +21,15 @@ static inline void __tlb_flush_local(void) */ static inline void __tlb_flush_idte(unsigned long asce) { + unsigned long opt; + + opt = IDTE_PTOA; + if (MACHINE_HAS_TLB_GUEST) + opt |= IDTE_GUEST_ASCE; /* Global TLB flush for the mm */ asm volatile( " .insn rrf,0xb98e0000,0,%0,%1,0" - : : "a" (2048), "a" (asce) : "cc"); + : : "a" (opt), "a" (asce) : "cc"); } #ifdef CONFIG_SMP @@ -43,23 +49,6 @@ static inline void __tlb_flush_global(void) * Flush TLB entries for a specific mm on all CPUs (in case gmap is used * this implicates multiple ASCEs!). */ -static inline void __tlb_flush_full(struct mm_struct *mm) -{ - preempt_disable(); - atomic_inc(&mm->context.flush_count); - if (cpumask_equal(mm_cpumask(mm), cpumask_of(smp_processor_id()))) { - /* Local TLB flush */ - __tlb_flush_local(); - } else { - /* Global TLB flush */ - __tlb_flush_global(); - /* Reset TLB flush mask */ - cpumask_copy(mm_cpumask(mm), &mm->context.cpu_attach_mask); - } - atomic_dec(&mm->context.flush_count); - preempt_enable(); -} - static inline void __tlb_flush_mm(struct mm_struct *mm) { unsigned long gmap_asce; @@ -71,16 +60,18 @@ static inline void __tlb_flush_mm(struct mm_struct *mm) */ preempt_disable(); atomic_inc(&mm->context.flush_count); + /* Reset TLB flush mask */ + cpumask_copy(mm_cpumask(mm), &mm->context.cpu_attach_mask); + barrier(); gmap_asce = READ_ONCE(mm->context.gmap_asce); if (MACHINE_HAS_IDTE && gmap_asce != -1UL) { if (gmap_asce) __tlb_flush_idte(gmap_asce); __tlb_flush_idte(mm->context.asce); } else { - __tlb_flush_full(mm); + /* Global TLB flush */ + __tlb_flush_global(); } - /* Reset TLB flush mask */ - cpumask_copy(mm_cpumask(mm), &mm->context.cpu_attach_mask); atomic_dec(&mm->context.flush_count); preempt_enable(); } @@ -94,7 +85,6 @@ static inline void __tlb_flush_kernel(void) } #else #define __tlb_flush_global() __tlb_flush_local() -#define __tlb_flush_full(mm) __tlb_flush_local() /* * Flush TLB entries for a specific ASCE on all CPUs. @@ -112,10 +102,12 @@ static inline void __tlb_flush_kernel(void) static inline void __tlb_flush_mm_lazy(struct mm_struct * mm) { + spin_lock(&mm->context.lock); if (mm->context.flush_mm) { - __tlb_flush_mm(mm); mm->context.flush_mm = 0; + __tlb_flush_mm(mm); } + spin_unlock(&mm->context.lock); } /* diff --git a/arch/s390/include/asm/topology.h b/arch/s390/include/asm/topology.h index fa1bfce10370..55de4eb73604 100644 --- a/arch/s390/include/asm/topology.h +++ b/arch/s390/include/asm/topology.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifndef _ASM_S390_TOPOLOGY_H #define _ASM_S390_TOPOLOGY_H @@ -77,12 +78,6 @@ static inline const struct cpumask *cpumask_of_node(int node) return &node_to_cpumask_map[node]; } -/* - * Returns the number of the node containing node 'node'. This - * architecture is flat, so it is a pretty simple function! - */ -#define parent_node(node) (node) - #define pcibus_to_node(bus) __pcibus_to_node(bus) #define node_distance(a, b) __node_distance(a, b) diff --git a/arch/s390/include/asm/trace/diag.h b/arch/s390/include/asm/trace/diag.h index cc6cfe7889da..22fcac4ff9f0 100644 --- a/arch/s390/include/asm/trace/diag.h +++ b/arch/s390/include/asm/trace/diag.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * Tracepoint header for s390 diagnose calls * diff --git a/arch/s390/include/asm/trace/zcrypt.h b/arch/s390/include/asm/trace/zcrypt.h index adcb77fafa9d..457ddaa99e19 100644 --- a/arch/s390/include/asm/trace/zcrypt.h +++ b/arch/s390/include/asm/trace/zcrypt.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * Tracepoint definitions for the s390 zcrypt device driver * diff --git a/arch/s390/include/asm/types.h b/arch/s390/include/asm/types.h deleted file mode 100644 index 6740f4f9781f..000000000000 --- a/arch/s390/include/asm/types.h +++ /dev/null @@ -1,11 +0,0 @@ -/* - * S390 version - * - * Derived from "include/asm-i386/types.h" - */ -#ifndef _S390_TYPES_H -#define _S390_TYPES_H - -#include <uapi/asm/types.h> - -#endif /* _S390_TYPES_H */ diff --git a/arch/s390/include/asm/uaccess.h b/arch/s390/include/asm/uaccess.h index 304cfe44df50..cdd0f0d999e2 100644 --- a/arch/s390/include/asm/uaccess.h +++ b/arch/s390/include/asm/uaccess.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * S390 version * Copyright IBM Corp. 1999, 2000 diff --git a/arch/s390/include/asm/unaligned.h b/arch/s390/include/asm/unaligned.h deleted file mode 100644 index da9627afe5d8..000000000000 --- a/arch/s390/include/asm/unaligned.h +++ /dev/null @@ -1,13 +0,0 @@ -#ifndef _ASM_S390_UNALIGNED_H -#define _ASM_S390_UNALIGNED_H - -/* - * The S390 can do unaligned accesses itself. - */ -#include <linux/unaligned/access_ok.h> -#include <linux/unaligned/generic.h> - -#define get_unaligned __get_unaligned_be -#define put_unaligned __put_unaligned_be - -#endif /* _ASM_S390_UNALIGNED_H */ diff --git a/arch/s390/include/asm/unistd.h b/arch/s390/include/asm/unistd.h index 3066031a73fe..7807093b73be 100644 --- a/arch/s390/include/asm/unistd.h +++ b/arch/s390/include/asm/unistd.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * S390 version * diff --git a/arch/s390/include/asm/uprobes.h b/arch/s390/include/asm/uprobes.h index 658393c65d7e..b60b3c7ef699 100644 --- a/arch/s390/include/asm/uprobes.h +++ b/arch/s390/include/asm/uprobes.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * User-space Probes (UProbes) for s390 * diff --git a/arch/s390/include/asm/user.h b/arch/s390/include/asm/user.h index 6ed1d1886333..0ca572ced21b 100644 --- a/arch/s390/include/asm/user.h +++ b/arch/s390/include/asm/user.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * S390 version * diff --git a/arch/s390/include/asm/vdso.h b/arch/s390/include/asm/vdso.h index 88bdc477a843..bb2ce72300b0 100644 --- a/arch/s390/include/asm/vdso.h +++ b/arch/s390/include/asm/vdso.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifndef __S390_VDSO_H__ #define __S390_VDSO_H__ diff --git a/arch/s390/include/asm/vtime.h b/arch/s390/include/asm/vtime.h index af9896c53eb3..3622d4ebc73a 100644 --- a/arch/s390/include/asm/vtime.h +++ b/arch/s390/include/asm/vtime.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifndef _S390_VTIME_H #define _S390_VTIME_H diff --git a/arch/s390/include/asm/vtimer.h b/arch/s390/include/asm/vtimer.h index 10a179af62d8..42f707d1c1e8 100644 --- a/arch/s390/include/asm/vtimer.h +++ b/arch/s390/include/asm/vtimer.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * Copyright IBM Corp. 2003, 2012 * Virtual CPU timer diff --git a/arch/s390/include/asm/vx-insn.h b/arch/s390/include/asm/vx-insn.h index 49c24a2afce0..266a72320e05 100644 --- a/arch/s390/include/asm/vx-insn.h +++ b/arch/s390/include/asm/vx-insn.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * Support for Vector Instructions * diff --git a/arch/s390/include/asm/xor.h b/arch/s390/include/asm/xor.h index c988df744a70..857d6759b67f 100644 --- a/arch/s390/include/asm/xor.h +++ b/arch/s390/include/asm/xor.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * Optimited xor routines * |