From de1a3f1ce6c4c3b2b14cf9157a22d6b4c64f708e Mon Sep 17 00:00:00 2001 From: Martin Schwidefsky Date: Wed, 20 Sep 2006 15:58:20 +0200 Subject: [S390] EX_TABLE macro. Add EX_TABLE helper macro to simplify creation of inline assembly exception table entries. Signed-off-by: Martin Schwidefsky --- include/asm-s390/processor.h | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) (limited to 'include') diff --git a/include/asm-s390/processor.h b/include/asm-s390/processor.h index 5b71d373172..a3a4e5fd30d 100644 --- a/include/asm-s390/processor.h +++ b/include/asm-s390/processor.h @@ -339,4 +339,21 @@ int unregister_idle_notifier(struct notifier_block *nb); #endif +/* + * Helper macro for exception table entries + */ +#ifndef __s390x__ +#define EX_TABLE(_fault,_target) \ + ".section __ex_table,\"a\"\n" \ + " .align 4\n" \ + " .long " #_fault "," #_target "\n" \ + ".previous\n" +#else +#define EX_TABLE(_fault,_target) \ + ".section __ex_table,\"a\"\n" \ + " .align 8\n" \ + " .quad " #_fault "," #_target "\n" \ + ".previous\n" +#endif + #endif /* __ASM_S390_PROCESSOR_H */ -- cgit v1.2.3 From 7561b974e0cbbdca1bb880b55200afd9a1a20737 Mon Sep 17 00:00:00 2001 From: Martin Schwidefsky Date: Wed, 20 Sep 2006 15:58:22 +0200 Subject: [S390] remove old z90crypt driver. The z90crypt driver has served its term. It is replaced by the shiny new zcrypt device driver. Signed-off-by: Martin Schwidefsky --- include/asm-s390/z90crypt.h | 212 -------------------------------------------- 1 file changed, 212 deletions(-) delete mode 100644 include/asm-s390/z90crypt.h (limited to 'include') diff --git a/include/asm-s390/z90crypt.h b/include/asm-s390/z90crypt.h deleted file mode 100644 index 31a2439b07b..00000000000 --- a/include/asm-s390/z90crypt.h +++ /dev/null @@ -1,212 +0,0 @@ -/* - * include/asm-s390/z90crypt.h - * - * z90crypt 1.3.3 (user-visible header) - * - * Copyright (C) 2001, 2005 IBM Corporation - * Author(s): Robert Burroughs - * Eric Rossman (edrossma@us.ibm.com) - * - * Hotplug & misc device support: Jochen Roehrig (roehrig@de.ibm.com) - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2, or (at your option) - * any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. - */ - -#ifndef __ASM_S390_Z90CRYPT_H -#define __ASM_S390_Z90CRYPT_H -#include - -#define z90crypt_VERSION 1 -#define z90crypt_RELEASE 3 // 2 = PCIXCC, 3 = rewrite for coding standards -#define z90crypt_VARIANT 3 // 3 = CEX2A support - -/** - * struct ica_rsa_modexpo - * - * Requirements: - * - outputdatalength is at least as large as inputdatalength. - * - All key parts are right justified in their fields, padded on - * the left with zeroes. - * - length(b_key) = inputdatalength - * - length(n_modulus) = inputdatalength - */ -struct ica_rsa_modexpo { - char __user * inputdata; - unsigned int inputdatalength; - char __user * outputdata; - unsigned int outputdatalength; - char __user * b_key; - char __user * n_modulus; -}; - -/** - * struct ica_rsa_modexpo_crt - * - * Requirements: - * - inputdatalength is even. - * - outputdatalength is at least as large as inputdatalength. - * - All key parts are right justified in their fields, padded on - * the left with zeroes. - * - length(bp_key) = inputdatalength/2 + 8 - * - length(bq_key) = inputdatalength/2 - * - length(np_key) = inputdatalength/2 + 8 - * - length(nq_key) = inputdatalength/2 - * - length(u_mult_inv) = inputdatalength/2 + 8 - */ -struct ica_rsa_modexpo_crt { - char __user * inputdata; - unsigned int inputdatalength; - char __user * outputdata; - unsigned int outputdatalength; - char __user * bp_key; - char __user * bq_key; - char __user * np_prime; - char __user * nq_prime; - char __user * u_mult_inv; -}; - -#define Z90_IOCTL_MAGIC 'z' // NOTE: Need to allocate from linux folks - -/** - * Interface notes: - * - * The ioctl()s which are implemented (along with relevant details) - * are: - * - * ICARSAMODEXPO - * Perform an RSA operation using a Modulus-Exponent pair - * This takes an ica_rsa_modexpo struct as its arg. - * - * NOTE: please refer to the comments preceding this structure - * for the implementation details for the contents of the - * block - * - * ICARSACRT - * Perform an RSA operation using a Chinese-Remainder Theorem key - * This takes an ica_rsa_modexpo_crt struct as its arg. - * - * NOTE: please refer to the comments preceding this structure - * for the implementation details for the contents of the - * block - * - * Z90STAT_TOTALCOUNT - * Return an integer count of all device types together. - * - * Z90STAT_PCICACOUNT - * Return an integer count of all PCICAs. - * - * Z90STAT_PCICCCOUNT - * Return an integer count of all PCICCs. - * - * Z90STAT_PCIXCCMCL2COUNT - * Return an integer count of all MCL2 PCIXCCs. - * - * Z90STAT_PCIXCCMCL3COUNT - * Return an integer count of all MCL3 PCIXCCs. - * - * Z90STAT_CEX2CCOUNT - * Return an integer count of all CEX2Cs. - * - * Z90STAT_CEX2ACOUNT - * Return an integer count of all CEX2As. - * - * Z90STAT_REQUESTQ_COUNT - * Return an integer count of the number of entries waiting to be - * sent to a device. - * - * Z90STAT_PENDINGQ_COUNT - * Return an integer count of the number of entries sent to a - * device awaiting the reply. - * - * Z90STAT_TOTALOPEN_COUNT - * Return an integer count of the number of open file handles. - * - * Z90STAT_DOMAIN_INDEX - * Return the integer value of the Cryptographic Domain. - * - * Z90STAT_STATUS_MASK - * Return an 64 element array of unsigned chars for the status of - * all devices. - * 0x01: PCICA - * 0x02: PCICC - * 0x03: PCIXCC_MCL2 - * 0x04: PCIXCC_MCL3 - * 0x05: CEX2C - * 0x06: CEX2A - * 0x0d: device is disabled via the proc filesystem - * - * Z90STAT_QDEPTH_MASK - * Return an 64 element array of unsigned chars for the queue - * depth of all devices. - * - * Z90STAT_PERDEV_REQCNT - * Return an 64 element array of unsigned integers for the number - * of successfully completed requests per device since the device - * was detected and made available. - * - * ICAZ90STATUS (deprecated) - * Return some device driver status in a ica_z90_status struct - * This takes an ica_z90_status struct as its arg. - * - * NOTE: this ioctl() is deprecated, and has been replaced with - * single ioctl()s for each type of status being requested - * - * Z90STAT_PCIXCCCOUNT (deprecated) - * Return an integer count of all PCIXCCs (MCL2 + MCL3). - * This is DEPRECATED now that MCL3 PCIXCCs are treated differently from - * MCL2 PCIXCCs. - * - * Z90QUIESCE (not recommended) - * Quiesce the driver. This is intended to stop all new - * requests from being processed. Its use is NOT recommended, - * except in circumstances where there is no other way to stop - * callers from accessing the driver. Its original use was to - * allow the driver to be "drained" of work in preparation for - * a system shutdown. - * - * NOTE: once issued, this ban on new work cannot be undone - * except by unloading and reloading the driver. - */ - -/** - * Supported ioctl calls - */ -#define ICARSAMODEXPO _IOC(_IOC_READ|_IOC_WRITE, Z90_IOCTL_MAGIC, 0x05, 0) -#define ICARSACRT _IOC(_IOC_READ|_IOC_WRITE, Z90_IOCTL_MAGIC, 0x06, 0) - -/* DEPRECATED status calls (bound for removal at some point) */ -#define ICAZ90STATUS _IOR(Z90_IOCTL_MAGIC, 0x10, struct ica_z90_status) -#define Z90STAT_PCIXCCCOUNT _IOR(Z90_IOCTL_MAGIC, 0x43, int) - -/* unrelated to ICA callers */ -#define Z90QUIESCE _IO(Z90_IOCTL_MAGIC, 0x11) - -/* New status calls */ -#define Z90STAT_TOTALCOUNT _IOR(Z90_IOCTL_MAGIC, 0x40, int) -#define Z90STAT_PCICACOUNT _IOR(Z90_IOCTL_MAGIC, 0x41, int) -#define Z90STAT_PCICCCOUNT _IOR(Z90_IOCTL_MAGIC, 0x42, int) -#define Z90STAT_PCIXCCMCL2COUNT _IOR(Z90_IOCTL_MAGIC, 0x4b, int) -#define Z90STAT_PCIXCCMCL3COUNT _IOR(Z90_IOCTL_MAGIC, 0x4c, int) -#define Z90STAT_CEX2CCOUNT _IOR(Z90_IOCTL_MAGIC, 0x4d, int) -#define Z90STAT_CEX2ACOUNT _IOR(Z90_IOCTL_MAGIC, 0x4e, int) -#define Z90STAT_REQUESTQ_COUNT _IOR(Z90_IOCTL_MAGIC, 0x44, int) -#define Z90STAT_PENDINGQ_COUNT _IOR(Z90_IOCTL_MAGIC, 0x45, int) -#define Z90STAT_TOTALOPEN_COUNT _IOR(Z90_IOCTL_MAGIC, 0x46, int) -#define Z90STAT_DOMAIN_INDEX _IOR(Z90_IOCTL_MAGIC, 0x47, int) -#define Z90STAT_STATUS_MASK _IOR(Z90_IOCTL_MAGIC, 0x48, char[64]) -#define Z90STAT_QDEPTH_MASK _IOR(Z90_IOCTL_MAGIC, 0x49, char[64]) -#define Z90STAT_PERDEV_REQCNT _IOR(Z90_IOCTL_MAGIC, 0x4a, int[64]) - -#endif /* __ASM_S390_Z90CRYPT_H */ -- cgit v1.2.3 From 1534c3820c26aca4e2567f97b8add8bea40e7e2b Mon Sep 17 00:00:00 2001 From: Martin Schwidefsky Date: Wed, 20 Sep 2006 15:58:25 +0200 Subject: [S390] zcrypt adjunct processor bus. Add a bus for the adjunct processor interface. Up to 64 devices can be connect to the ap bus interface, each device with 16 domains. That makes 1024 message queues. The interface is asynchronous, the answer to a message sent to a queue needs to be received at some later point in time. Unfortunately the interface does not provide interrupts when a message reply is pending. So the ap bus needs to implement some fancy polling, each active queue is polled once per 1/HZ second or continuously if an idle cpus exsists and the poll thread is activ (see poll_thread parameter). The ap bus uses the sysfs path /sys/bus/ap and has two bus attributes, ap_domain and config_time. The ap_domain selects one of the 16 domains to be used for this system. This limits the maximum number of ap devices to 64. The config_time attribute contains the number of seconds between two ap bus scans to find new devices. The ap bus uses the modalias entries of the form "ap:tN" to autoload the ap driver for hardware type N. Currently known types are: 3 - PCICC, 4 - PCICA, 5 - PCIXCC, 6 - CEX2A and 7 - CEX2C. Signed-off-by: Cornelia Huck Signed-off-by: Ralph Wuerthner Signed-off-by: Martin Schwidefsky --- include/linux/mod_devicetable.h | 11 +++++++++++ 1 file changed, 11 insertions(+) (limited to 'include') diff --git a/include/linux/mod_devicetable.h b/include/linux/mod_devicetable.h index f6977708585..f7ca0b09075 100644 --- a/include/linux/mod_devicetable.h +++ b/include/linux/mod_devicetable.h @@ -148,6 +148,17 @@ struct ccw_device_id { #define CCW_DEVICE_ID_MATCH_DEVICE_TYPE 0x04 #define CCW_DEVICE_ID_MATCH_DEVICE_MODEL 0x08 +/* s390 AP bus devices */ +struct ap_device_id { + __u16 match_flags; /* which fields to match against */ + __u8 dev_type; /* device type */ + __u8 pad1; + __u32 pad2; + kernel_ulong_t driver_info; +}; + +#define AP_DEVICE_ID_MATCH_DEVICE_TYPE 0x01 + #define PNP_ID_LEN 8 #define PNP_MAX_DEVICES 8 -- cgit v1.2.3 From 2dbc2418bac32a18a372ae9aec386f0fe9174389 Mon Sep 17 00:00:00 2001 From: Martin Schwidefsky Date: Wed, 20 Sep 2006 15:58:27 +0200 Subject: [S390] zcrypt user space interface. The user space interface of the zcrypt device driver implements the old user space interface as defined by the old z90crypt driver. Everything is there, the /dev/z90crypt misc character device, all the lovely ioctls and the /proc file. Even writing to the z90crypt proc file to configure the crypto device still works. It stands to reason to remove the proc write function someday since a much cleaner configuration via the sysfs is now available. The ap bus device drivers register crypto cards to the zcrypt user space interface. The request router of the user space interface picks one of the registered cards based on the predicted latency for the request and calls the driver via a callback found in the zcrypt_ops of the device. The request router only knows which operations the card can do and the minimum / maximum number of bits a request can have. Signed-off-by: Cornelia Huck Signed-off-by: Ralph Wuerthner Signed-off-by: Martin Schwidefsky --- include/asm-s390/zcrypt.h | 207 ++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 207 insertions(+) create mode 100644 include/asm-s390/zcrypt.h (limited to 'include') diff --git a/include/asm-s390/zcrypt.h b/include/asm-s390/zcrypt.h new file mode 100644 index 00000000000..0d6a3e2a334 --- /dev/null +++ b/include/asm-s390/zcrypt.h @@ -0,0 +1,207 @@ +/* + * include/asm-s390/zcrypt.h + * + * zcrypt 2.0.0 (user-visible header) + * + * Copyright (C) 2001, 2006 IBM Corporation + * Author(s): Robert Burroughs + * Eric Rossman (edrossma@us.ibm.com) + * + * Hotplug & misc device support: Jochen Roehrig (roehrig@de.ibm.com) + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2, or (at your option) + * any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + */ + +#ifndef __ASM_S390_ZCRYPT_H +#define __ASM_S390_ZCRYPT_H + +#define ZCRYPT_VERSION 2 +#define ZCRYPT_RELEASE 1 +#define ZCRYPT_VARIANT 0 + +#include +#include + +/** + * struct ica_rsa_modexpo + * + * Requirements: + * - outputdatalength is at least as large as inputdatalength. + * - All key parts are right justified in their fields, padded on + * the left with zeroes. + * - length(b_key) = inputdatalength + * - length(n_modulus) = inputdatalength + */ +struct ica_rsa_modexpo { + char __user * inputdata; + unsigned int inputdatalength; + char __user * outputdata; + unsigned int outputdatalength; + char __user * b_key; + char __user * n_modulus; +}; + +/** + * struct ica_rsa_modexpo_crt + * + * Requirements: + * - inputdatalength is even. + * - outputdatalength is at least as large as inputdatalength. + * - All key parts are right justified in their fields, padded on + * the left with zeroes. + * - length(bp_key) = inputdatalength/2 + 8 + * - length(bq_key) = inputdatalength/2 + * - length(np_key) = inputdatalength/2 + 8 + * - length(nq_key) = inputdatalength/2 + * - length(u_mult_inv) = inputdatalength/2 + 8 + */ +struct ica_rsa_modexpo_crt { + char __user * inputdata; + unsigned int inputdatalength; + char __user * outputdata; + unsigned int outputdatalength; + char __user * bp_key; + char __user * bq_key; + char __user * np_prime; + char __user * nq_prime; + char __user * u_mult_inv; +}; + +#define ZCRYPT_IOCTL_MAGIC 'z' + +/** + * Interface notes: + * + * The ioctl()s which are implemented (along with relevant details) + * are: + * + * ICARSAMODEXPO + * Perform an RSA operation using a Modulus-Exponent pair + * This takes an ica_rsa_modexpo struct as its arg. + * + * NOTE: please refer to the comments preceding this structure + * for the implementation details for the contents of the + * block + * + * ICARSACRT + * Perform an RSA operation using a Chinese-Remainder Theorem key + * This takes an ica_rsa_modexpo_crt struct as its arg. + * + * NOTE: please refer to the comments preceding this structure + * for the implementation details for the contents of the + * block + * + * Z90STAT_TOTALCOUNT + * Return an integer count of all device types together. + * + * Z90STAT_PCICACOUNT + * Return an integer count of all PCICAs. + * + * Z90STAT_PCICCCOUNT + * Return an integer count of all PCICCs. + * + * Z90STAT_PCIXCCMCL2COUNT + * Return an integer count of all MCL2 PCIXCCs. + * + * Z90STAT_PCIXCCMCL3COUNT + * Return an integer count of all MCL3 PCIXCCs. + * + * Z90STAT_CEX2CCOUNT + * Return an integer count of all CEX2Cs. + * + * Z90STAT_CEX2ACOUNT + * Return an integer count of all CEX2As. + * + * Z90STAT_REQUESTQ_COUNT + * Return an integer count of the number of entries waiting to be + * sent to a device. + * + * Z90STAT_PENDINGQ_COUNT + * Return an integer count of the number of entries sent to a + * device awaiting the reply. + * + * Z90STAT_TOTALOPEN_COUNT + * Return an integer count of the number of open file handles. + * + * Z90STAT_DOMAIN_INDEX + * Return the integer value of the Cryptographic Domain. + * + * Z90STAT_STATUS_MASK + * Return an 64 element array of unsigned chars for the status of + * all devices. + * 0x01: PCICA + * 0x02: PCICC + * 0x03: PCIXCC_MCL2 + * 0x04: PCIXCC_MCL3 + * 0x05: CEX2C + * 0x06: CEX2A + * 0x0d: device is disabled via the proc filesystem + * + * Z90STAT_QDEPTH_MASK + * Return an 64 element array of unsigned chars for the queue + * depth of all devices. + * + * Z90STAT_PERDEV_REQCNT + * Return an 64 element array of unsigned integers for the number + * of successfully completed requests per device since the device + * was detected and made available. + * + * ICAZ90STATUS (deprecated) + * Return some device driver status in a ica_z90_status struct + * This takes an ica_z90_status struct as its arg. + * + * NOTE: this ioctl() is deprecated, and has been replaced with + * single ioctl()s for each type of status being requested + * + * Z90STAT_PCIXCCCOUNT (deprecated) + * Return an integer count of all PCIXCCs (MCL2 + MCL3). + * This is DEPRECATED now that MCL3 PCIXCCs are treated differently from + * MCL2 PCIXCCs. + * + * Z90QUIESCE (not recommended) + * Quiesce the driver. This is intended to stop all new + * requests from being processed. Its use is NOT recommended, + * except in circumstances where there is no other way to stop + * callers from accessing the driver. Its original use was to + * allow the driver to be "drained" of work in preparation for + * a system shutdown. + * + * NOTE: once issued, this ban on new work cannot be undone + * except by unloading and reloading the driver. + */ + +/** + * Supported ioctl calls + */ +#define ICARSAMODEXPO _IOC(_IOC_READ|_IOC_WRITE, ZCRYPT_IOCTL_MAGIC, 0x05, 0) +#define ICARSACRT _IOC(_IOC_READ|_IOC_WRITE, ZCRYPT_IOCTL_MAGIC, 0x06, 0) + +/* New status calls */ +#define Z90STAT_TOTALCOUNT _IOR(ZCRYPT_IOCTL_MAGIC, 0x40, int) +#define Z90STAT_PCICACOUNT _IOR(ZCRYPT_IOCTL_MAGIC, 0x41, int) +#define Z90STAT_PCICCCOUNT _IOR(ZCRYPT_IOCTL_MAGIC, 0x42, int) +#define Z90STAT_PCIXCCMCL2COUNT _IOR(ZCRYPT_IOCTL_MAGIC, 0x4b, int) +#define Z90STAT_PCIXCCMCL3COUNT _IOR(ZCRYPT_IOCTL_MAGIC, 0x4c, int) +#define Z90STAT_CEX2CCOUNT _IOR(ZCRYPT_IOCTL_MAGIC, 0x4d, int) +#define Z90STAT_CEX2ACOUNT _IOR(ZCRYPT_IOCTL_MAGIC, 0x4e, int) +#define Z90STAT_REQUESTQ_COUNT _IOR(ZCRYPT_IOCTL_MAGIC, 0x44, int) +#define Z90STAT_PENDINGQ_COUNT _IOR(ZCRYPT_IOCTL_MAGIC, 0x45, int) +#define Z90STAT_TOTALOPEN_COUNT _IOR(ZCRYPT_IOCTL_MAGIC, 0x46, int) +#define Z90STAT_DOMAIN_INDEX _IOR(ZCRYPT_IOCTL_MAGIC, 0x47, int) +#define Z90STAT_STATUS_MASK _IOR(ZCRYPT_IOCTL_MAGIC, 0x48, char[64]) +#define Z90STAT_QDEPTH_MASK _IOR(ZCRYPT_IOCTL_MAGIC, 0x49, char[64]) +#define Z90STAT_PERDEV_REQCNT _IOR(ZCRYPT_IOCTL_MAGIC, 0x4a, int[64]) + +#endif /* __ASM_S390_ZCRYPT_H */ -- cgit v1.2.3 From 5432114baf0300286a6ca1b0aea549492a379432 Mon Sep 17 00:00:00 2001 From: Ralph Wuerthner Date: Wed, 20 Sep 2006 15:58:36 +0200 Subject: [S390] zcrypt secure key cryptography extension. Allow the user space to send extended cprb messages directly to the PCIXCC / CEX2C cards. This allows the CCA library to construct special crypto requests that use "secure" keys that are stored on the card. Signed-off-by: Ralph Wuerthner Signed-off-by: Martin Schwidefsky --- include/asm-s390/zcrypt.h | 80 ++++++++++++++++++++++++++++++++++++++++++++++- 1 file changed, 79 insertions(+), 1 deletion(-) (limited to 'include') diff --git a/include/asm-s390/zcrypt.h b/include/asm-s390/zcrypt.h index 0d6a3e2a334..7244c68464f 100644 --- a/include/asm-s390/zcrypt.h +++ b/include/asm-s390/zcrypt.h @@ -1,7 +1,7 @@ /* * include/asm-s390/zcrypt.h * - * zcrypt 2.0.0 (user-visible header) + * zcrypt 2.1.0 (user-visible header) * * Copyright (C) 2001, 2006 IBM Corporation * Author(s): Robert Burroughs @@ -79,6 +79,83 @@ struct ica_rsa_modexpo_crt { char __user * u_mult_inv; }; +/** + * CPRBX + * Note that all shorts and ints are big-endian. + * All pointer fields are 16 bytes long, and mean nothing. + * + * A request CPRB is followed by a request_parameter_block. + * + * The request (or reply) parameter block is organized thus: + * function code + * VUD block + * key block + */ +struct ica_CPRBX { + unsigned short cprb_len; /* CPRB length 220 */ + unsigned char cprb_ver_id; /* CPRB version id. 0x02 */ + unsigned char pad_000[3]; /* Alignment pad bytes */ + unsigned char func_id[2]; /* function id 0x5432 */ + unsigned char cprb_flags[4]; /* Flags */ + unsigned int req_parml; /* request parameter buffer len */ + unsigned int req_datal; /* request data buffer */ + unsigned int rpl_msgbl; /* reply message block length */ + unsigned int rpld_parml; /* replied parameter block len */ + unsigned int rpl_datal; /* reply data block len */ + unsigned int rpld_datal; /* replied data block len */ + unsigned int req_extbl; /* request extension block len */ + unsigned char pad_001[4]; /* reserved */ + unsigned int rpld_extbl; /* replied extension block len */ + unsigned char padx000[16 - sizeof (char *)]; + unsigned char * req_parmb; /* request parm block 'address' */ + unsigned char padx001[16 - sizeof (char *)]; + unsigned char * req_datab; /* request data block 'address' */ + unsigned char padx002[16 - sizeof (char *)]; + unsigned char * rpl_parmb; /* reply parm block 'address' */ + unsigned char padx003[16 - sizeof (char *)]; + unsigned char * rpl_datab; /* reply data block 'address' */ + unsigned char padx004[16 - sizeof (char *)]; + unsigned char * req_extb; /* request extension block 'addr'*/ + unsigned char padx005[16 - sizeof (char *)]; + unsigned char * rpl_extb; /* reply extension block 'addres'*/ + unsigned short ccp_rtcode; /* server return code */ + unsigned short ccp_rscode; /* server reason code */ + unsigned int mac_data_len; /* Mac Data Length */ + unsigned char logon_id[8]; /* Logon Identifier */ + unsigned char mac_value[8]; /* Mac Value */ + unsigned char mac_content_flgs;/* Mac content flag byte */ + unsigned char pad_002; /* Alignment */ + unsigned short domain; /* Domain */ + unsigned char usage_domain[4];/* Usage domain */ + unsigned char cntrl_domain[4];/* Control domain */ + unsigned char S390enf_mask[4];/* S/390 enforcement mask */ + unsigned char pad_004[36]; /* reserved */ +}; + +/** + * xcRB + */ +struct ica_xcRB { + unsigned short agent_ID; + unsigned int user_defined; + unsigned short request_ID; + unsigned int request_control_blk_length; + unsigned char padding1[16 - sizeof (char *)]; + char __user * request_control_blk_addr; + unsigned int request_data_length; + char padding2[16 - sizeof (char *)]; + char __user * request_data_address; + unsigned int reply_control_blk_length; + char padding3[16 - sizeof (char *)]; + char __user * reply_control_blk_addr; + unsigned int reply_data_length; + char padding4[16 - sizeof (char *)]; + char __user * reply_data_addr; + unsigned short priority_window; + unsigned int status; +} __attribute__((packed)); +#define AUTOSELECT ((unsigned int)0xFFFFFFFF) + #define ZCRYPT_IOCTL_MAGIC 'z' /** @@ -187,6 +264,7 @@ struct ica_rsa_modexpo_crt { */ #define ICARSAMODEXPO _IOC(_IOC_READ|_IOC_WRITE, ZCRYPT_IOCTL_MAGIC, 0x05, 0) #define ICARSACRT _IOC(_IOC_READ|_IOC_WRITE, ZCRYPT_IOCTL_MAGIC, 0x06, 0) +#define ZSECSENDCPRB _IOC(_IOC_READ|_IOC_WRITE, ZCRYPT_IOCTL_MAGIC, 0x81, 0) /* New status calls */ #define Z90STAT_TOTALCOUNT _IOR(ZCRYPT_IOCTL_MAGIC, 0x40, int) -- cgit v1.2.3 From 4ba069b802c29eee066385f9826e2d83716626b4 Mon Sep 17 00:00:00 2001 From: Michael Grundy Date: Wed, 20 Sep 2006 15:58:39 +0200 Subject: [S390] add kprobes support. Signed-off-by: Michael Grundy Signed-off-by: David Wilder Signed-off-by: Martin Schwidefsky --- include/asm-s390/kdebug.h | 59 +++++++++++++++++++++++ include/asm-s390/kprobes.h | 114 +++++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 173 insertions(+) create mode 100644 include/asm-s390/kdebug.h create mode 100644 include/asm-s390/kprobes.h (limited to 'include') diff --git a/include/asm-s390/kdebug.h b/include/asm-s390/kdebug.h new file mode 100644 index 00000000000..40cc68025e0 --- /dev/null +++ b/include/asm-s390/kdebug.h @@ -0,0 +1,59 @@ +#ifndef _S390_KDEBUG_H +#define _S390_KDEBUG_H + +/* + * Feb 2006 Ported to s390 + */ +#include + +struct pt_regs; + +struct die_args { + struct pt_regs *regs; + const char *str; + long err; + int trapnr; + int signr; +}; + +/* Note - you should never unregister because that can race with NMIs. + * If you really want to do it first unregister - then synchronize_sched + * - then free. + */ +extern int register_die_notifier(struct notifier_block *); +extern int unregister_die_notifier(struct notifier_block *); +extern int register_page_fault_notifier(struct notifier_block *); +extern int unregister_page_fault_notifier(struct notifier_block *); +extern struct atomic_notifier_head s390die_chain; + + +enum die_val { + DIE_OOPS = 1, + DIE_BPT, + DIE_SSTEP, + DIE_PANIC, + DIE_NMI, + DIE_DIE, + DIE_NMIWATCHDOG, + DIE_KERNELDEBUG, + DIE_TRAP, + DIE_GPF, + DIE_CALL, + DIE_NMI_IPI, + DIE_PAGE_FAULT, +}; + +static inline int notify_die(enum die_val val, const char *str, + struct pt_regs *regs, long err, int trap, int sig) +{ + struct die_args args = { + .regs = regs, + .str = str, + .err = err, + .trapnr = trap, + .signr = sig + }; + return atomic_notifier_call_chain(&s390die_chain, val, &args); +} + +#endif diff --git a/include/asm-s390/kprobes.h b/include/asm-s390/kprobes.h new file mode 100644 index 00000000000..b847ff0ec3f --- /dev/null +++ b/include/asm-s390/kprobes.h @@ -0,0 +1,114 @@ +#ifndef _ASM_S390_KPROBES_H +#define _ASM_S390_KPROBES_H +/* + * Kernel Probes (KProbes) + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. + * + * Copyright (C) IBM Corporation, 2002, 2006 + * + * 2002-Oct Created by Vamsi Krishna S Kernel + * Probes initial implementation ( includes suggestions from + * Rusty Russell). + * 2004-Nov Modified for PPC64 by Ananth N Mavinakayanahalli + * + * 2005-Dec Used as a template for s390 by Mike Grundy + * + */ +#include +#include +#include + +#define __ARCH_WANT_KPROBES_INSN_SLOT +struct pt_regs; +struct kprobe; + +typedef u16 kprobe_opcode_t; +#define BREAKPOINT_INSTRUCTION 0x0002 + +/* Maximum instruction size is 3 (16bit) halfwords: */ +#define MAX_INSN_SIZE 0x0003 +#define MAX_STACK_SIZE 64 +#define MIN_STACK_SIZE(ADDR) (((MAX_STACK_SIZE) < \ + (((unsigned long)current_thread_info()) + THREAD_SIZE - (ADDR))) \ + ? (MAX_STACK_SIZE) \ + : (((unsigned long)current_thread_info()) + THREAD_SIZE - (ADDR))) + +#define JPROBE_ENTRY(pentry) (kprobe_opcode_t *)(pentry) + +#define ARCH_SUPPORTS_KRETPROBES +#define ARCH_INACTIVE_KPROBE_COUNT 0 + +#define KPROBE_SWAP_INST 0x10 + +#define FIXUP_PSW_NORMAL 0x08 +#define FIXUP_BRANCH_NOT_TAKEN 0x04 +#define FIXUP_RETURN_REGISTER 0x02 +#define FIXUP_NOT_REQUIRED 0x01 + +/* Architecture specific copy of original instruction */ +struct arch_specific_insn { + /* copy of original instruction */ + kprobe_opcode_t *insn; + int fixup; + int ilen; + int reg; +}; + +struct ins_replace_args { + kprobe_opcode_t *ptr; + kprobe_opcode_t old; + kprobe_opcode_t new; +}; +struct prev_kprobe { + struct kprobe *kp; + unsigned long status; + unsigned long saved_psw; + unsigned long kprobe_saved_imask; + unsigned long kprobe_saved_ctl[3]; +}; + +/* per-cpu kprobe control block */ +struct kprobe_ctlblk { + unsigned long kprobe_status; + unsigned long kprobe_saved_imask; + unsigned long kprobe_saved_ctl[3]; + struct pt_regs jprobe_saved_regs; + unsigned long jprobe_saved_r14; + unsigned long jprobe_saved_r15; + struct prev_kprobe prev_kprobe; + kprobe_opcode_t jprobes_stack[MAX_STACK_SIZE]; +}; + +void arch_remove_kprobe(struct kprobe *p); +void kretprobe_trampoline(void); +int is_prohibited_opcode(kprobe_opcode_t *instruction); +void get_instruction_type(struct arch_specific_insn *ainsn); + +#define flush_insn_slot(p) do { } while (0) + +#endif /* _ASM_S390_KPROBES_H */ + +#ifdef CONFIG_KPROBES + +extern int kprobe_exceptions_notify(struct notifier_block *self, + unsigned long val, void *data); +#else /* !CONFIG_KPROBES */ +static inline int kprobe_exceptions_notify(struct notifier_block *self, + unsigned long val, void *data) +{ + return 0; +} +#endif -- cgit v1.2.3 From 65912a84c0f33304fa5ea004c7b6ee58d5f5572e Mon Sep 17 00:00:00 2001 From: Heiko Carstens Date: Wed, 20 Sep 2006 15:58:41 +0200 Subject: [S390] initrd vs. bootmem bitmap. Move initrd if the bitmap of the bootmem allocator would overwrite it. In addition this patch sets the default size and address of the initrd to 0. Therefore all boot loaders must set the initrd size and address correctly. This is especially relevant for ftp boot via HMC/SE, where this change requires a special patch file entry in the .ins file which sets these two values contained at address 0x10408 and 0x10410. Signed-off-by: Heiko Carstens Signed-off-by: Martin Schwidefsky --- include/asm-s390/setup.h | 2 -- 1 file changed, 2 deletions(-) (limited to 'include') diff --git a/include/asm-s390/setup.h b/include/asm-s390/setup.h index 19e31979309..02c96d57f0c 100644 --- a/include/asm-s390/setup.h +++ b/include/asm-s390/setup.h @@ -14,8 +14,6 @@ #define PARMAREA 0x10400 #define COMMAND_LINE_SIZE 896 -#define RAMDISK_ORIGIN 0x800000 -#define RAMDISK_SIZE 0x800000 #define MEMORY_CHUNKS 16 /* max 0x7fff */ #define IPL_PARMBLOCK_ORIGIN 0x2000 -- cgit v1.2.3 From ff6b8ea68f4b7353f88b97024f28127e2148aa00 Mon Sep 17 00:00:00 2001 From: Michael Holzheu Date: Wed, 20 Sep 2006 15:58:49 +0200 Subject: [S390] ipl/dump on panic. It is now possible to specify a ccw/fcp dump device which is used to automatically create a system dump in case of a kernel panic. The dump device can be configured under /sys/firmware/dump. In addition it is now possible to specify a ccw/fcp device which is used for the next reboot of Linux. The reipl device can be configured under /sys/firmware/reipl. Signed-off-by: Michael Holzheu Signed-off-by: Martin Schwidefsky --- include/asm-s390/cio.h | 7 ++++++ include/asm-s390/lowcore.h | 13 ++++++++++- include/asm-s390/setup.h | 54 ++++++++++++++++++++++++++++++++-------------- 3 files changed, 57 insertions(+), 17 deletions(-) (limited to 'include') diff --git a/include/asm-s390/cio.h b/include/asm-s390/cio.h index 28fdd6e2b8b..da063cd5f0a 100644 --- a/include/asm-s390/cio.h +++ b/include/asm-s390/cio.h @@ -270,6 +270,11 @@ struct diag210 { __u32 vrdccrft : 8; /* real device feature (output) */ } __attribute__ ((packed,aligned(4))); +struct ccw_dev_id { + u8 ssid; + u16 devno; +}; + extern int diag210(struct diag210 *addr); extern void wait_cons_dev(void); @@ -280,6 +285,8 @@ extern void cio_reset_channel_paths(void); extern void css_schedule_reprobe(void); +extern void reipl_ccw_dev(struct ccw_dev_id *id); + #endif #endif diff --git a/include/asm-s390/lowcore.h b/include/asm-s390/lowcore.h index 596c8b17210..2e3d4cca5e2 100644 --- a/include/asm-s390/lowcore.h +++ b/include/asm-s390/lowcore.h @@ -47,6 +47,7 @@ #define __LC_PER_ATMID 0x096 #define __LC_PER_ADDRESS 0x098 #define __LC_PER_ACCESS_ID 0x0A1 +#define __LC_AR_MODE_ID 0x0A3 #define __LC_SUBCHANNEL_ID 0x0B8 #define __LC_SUBCHANNEL_NR 0x0BA @@ -106,18 +107,28 @@ #define __LC_INT_CLOCK 0xDE8 #endif /* __s390x__ */ -#define __LC_PANIC_MAGIC 0xE00 +#define __LC_PANIC_MAGIC 0xE00 #ifndef __s390x__ #define __LC_PFAULT_INTPARM 0x080 #define __LC_CPU_TIMER_SAVE_AREA 0x0D8 +#define __LC_CLOCK_COMP_SAVE_AREA 0x0E0 +#define __LC_PSW_SAVE_AREA 0x100 +#define __LC_PREFIX_SAVE_AREA 0x108 #define __LC_AREGS_SAVE_AREA 0x120 +#define __LC_FPREGS_SAVE_AREA 0x160 #define __LC_GPREGS_SAVE_AREA 0x180 #define __LC_CREGS_SAVE_AREA 0x1C0 #else /* __s390x__ */ #define __LC_PFAULT_INTPARM 0x11B8 +#define __LC_FPREGS_SAVE_AREA 0x1200 #define __LC_GPREGS_SAVE_AREA 0x1280 +#define __LC_PSW_SAVE_AREA 0x1300 +#define __LC_PREFIX_SAVE_AREA 0x1318 +#define __LC_FP_CREG_SAVE_AREA 0x131C +#define __LC_TODREG_SAVE_AREA 0x1324 #define __LC_CPU_TIMER_SAVE_AREA 0x1328 +#define __LC_CLOCK_COMP_SAVE_AREA 0x1331 #define __LC_AREGS_SAVE_AREA 0x1340 #define __LC_CREGS_SAVE_AREA 0x1380 #endif /* __s390x__ */ diff --git a/include/asm-s390/setup.h b/include/asm-s390/setup.h index 02c96d57f0c..4a1126d8439 100644 --- a/include/asm-s390/setup.h +++ b/include/asm-s390/setup.h @@ -68,39 +68,59 @@ extern unsigned int console_irq; #define SET_CONSOLE_3215 do { console_mode = 2; } while (0) #define SET_CONSOLE_3270 do { console_mode = 3; } while (0) -struct ipl_list_header { - u32 length; - u8 reserved[3]; + +struct ipl_list_hdr { + u32 len; + u8 reserved1[3]; u8 version; + u32 blk0_len; + u8 pbt; + u8 flags; + u16 reserved2; } __attribute__((packed)); struct ipl_block_fcp { - u32 length; - u8 pbt; - u8 reserved1[322-1]; + u8 reserved1[313-1]; + u8 opt; + u8 reserved2[3]; + u16 reserved3; u16 devno; - u8 reserved2[4]; + u8 reserved4[4]; u64 wwpn; u64 lun; u32 bootprog; - u8 reserved3[12]; + u8 reserved5[12]; u64 br_lba; u32 scp_data_len; - u8 reserved4[260]; + u8 reserved6[260]; u8 scp_data[]; } __attribute__((packed)); +struct ipl_block_ccw { + u8 load_param[8]; + u8 reserved1[84]; + u8 reserved2[2]; + u16 devno; + u8 vm_flags; + u8 reserved3[3]; + u32 vm_parm_len; +} __attribute__((packed)); + struct ipl_parameter_block { + struct ipl_list_hdr hdr; union { - u32 length; - struct ipl_list_header header; - } hdr; - struct ipl_block_fcp fcp; + struct ipl_block_fcp fcp; + struct ipl_block_ccw ccw; + } ipl_info; } __attribute__((packed)); -#define IPL_MAX_SUPPORTED_VERSION (0) +#define IPL_PARM_BLK_FCP_LEN (sizeof(struct ipl_list_hdr) + \ + sizeof(struct ipl_block_fcp)) -#define IPL_TYPE_FCP (0) +#define IPL_PARM_BLK_CCW_LEN (sizeof(struct ipl_list_hdr) + \ + sizeof(struct ipl_block_ccw)) + +#define IPL_MAX_SUPPORTED_VERSION (0) /* * IPL validity flags and parameters as detected in head.S @@ -108,12 +128,14 @@ struct ipl_parameter_block { extern u32 ipl_parameter_flags; extern u16 ipl_devno; +void do_reipl(void); + #define IPL_DEVNO_VALID (ipl_parameter_flags & 1) #define IPL_PARMBLOCK_VALID (ipl_parameter_flags & 2) #define IPL_PARMBLOCK_START ((struct ipl_parameter_block *) \ IPL_PARMBLOCK_ORIGIN) -#define IPL_PARMBLOCK_SIZE (IPL_PARMBLOCK_START->hdr.length) +#define IPL_PARMBLOCK_SIZE (IPL_PARMBLOCK_START->hdr.len) #else /* __ASSEMBLY__ */ -- cgit v1.2.3 From 39b083fe1c3c7b88939f6fa1b0b96e579f12e96f Mon Sep 17 00:00:00 2001 From: Heiko Carstens Date: Wed, 20 Sep 2006 15:58:51 +0200 Subject: [S390] empty function defines. Use do { } while (0) constructs instead of empty defines to avoid subtle compile bugs. Signed-off-by: Heiko Carstens Signed-off-by: Martin Schwidefsky --- include/asm-s390/dma.h | 2 +- include/asm-s390/io.h | 2 +- include/asm-s390/smp.h | 2 +- 3 files changed, 3 insertions(+), 3 deletions(-) (limited to 'include') diff --git a/include/asm-s390/dma.h b/include/asm-s390/dma.h index 02720c449cd..7425c6af6cd 100644 --- a/include/asm-s390/dma.h +++ b/include/asm-s390/dma.h @@ -11,6 +11,6 @@ #define MAX_DMA_ADDRESS 0x80000000 -#define free_dma(x) +#define free_dma(x) do { } while (0) #endif /* _ASM_DMA_H */ diff --git a/include/asm-s390/io.h b/include/asm-s390/io.h index d4614b35f42..a6cc27e7700 100644 --- a/include/asm-s390/io.h +++ b/include/asm-s390/io.h @@ -116,7 +116,7 @@ extern void iounmap(void *addr); #define outb(x,addr) ((void) writeb(x,addr)) #define outb_p(x,addr) outb(x,addr) -#define mmiowb() +#define mmiowb() do { } while (0) /* * Convert a physical pointer to a virtual kernel pointer for /dev/mem diff --git a/include/asm-s390/smp.h b/include/asm-s390/smp.h index 657646054c5..9fb02e9779c 100644 --- a/include/asm-s390/smp.h +++ b/include/asm-s390/smp.h @@ -104,7 +104,7 @@ smp_call_function_on(void (*func) (void *info), void *info, #define smp_cpu_not_running(cpu) 1 #define smp_get_cpu(cpu) ({ 0; }) #define smp_put_cpu(cpu) ({ 0; }) -#define smp_setup_cpu_possible_map() +#define smp_setup_cpu_possible_map() do { } while (0) #endif #endif -- cgit v1.2.3 From ba8ce5c6f0a15f08eae39880a0de296007f4a4e7 Mon Sep 17 00:00:00 2001 From: Martin Schwidefsky Date: Wed, 20 Sep 2006 15:58:56 +0200 Subject: [S390] #undef in unistd.h Avoid using #undef in unistd.h. Signed-off-by: Martin Schwidefsky --- include/asm-s390/unistd.h | 170 ++++++++++++++++------------------------------ 1 file changed, 59 insertions(+), 111 deletions(-) (limited to 'include') diff --git a/include/asm-s390/unistd.h b/include/asm-s390/unistd.h index aa7a243862e..02b942d85c3 100644 --- a/include/asm-s390/unistd.h +++ b/include/asm-s390/unistd.h @@ -25,17 +25,12 @@ #define __NR_unlink 10 #define __NR_execve 11 #define __NR_chdir 12 -#define __NR_time 13 #define __NR_mknod 14 #define __NR_chmod 15 -#define __NR_lchown 16 #define __NR_lseek 19 #define __NR_getpid 20 #define __NR_mount 21 #define __NR_umount 22 -#define __NR_setuid 23 -#define __NR_getuid 24 -#define __NR_stime 25 #define __NR_ptrace 26 #define __NR_alarm 27 #define __NR_pause 29 @@ -51,11 +46,7 @@ #define __NR_pipe 42 #define __NR_times 43 #define __NR_brk 45 -#define __NR_setgid 46 -#define __NR_getgid 47 #define __NR_signal 48 -#define __NR_geteuid 49 -#define __NR_getegid 50 #define __NR_acct 51 #define __NR_umount2 52 #define __NR_ioctl 54 @@ -69,18 +60,13 @@ #define __NR_getpgrp 65 #define __NR_setsid 66 #define __NR_sigaction 67 -#define __NR_setreuid 70 -#define __NR_setregid 71 #define __NR_sigsuspend 72 #define __NR_sigpending 73 #define __NR_sethostname 74 #define __NR_setrlimit 75 -#define __NR_getrlimit 76 #define __NR_getrusage 77 #define __NR_gettimeofday 78 #define __NR_settimeofday 79 -#define __NR_getgroups 80 -#define __NR_setgroups 81 #define __NR_symlink 83 #define __NR_readlink 85 #define __NR_uselib 86 @@ -92,12 +78,10 @@ #define __NR_truncate 92 #define __NR_ftruncate 93 #define __NR_fchmod 94 -#define __NR_fchown 95 #define __NR_getpriority 96 #define __NR_setpriority 97 #define __NR_statfs 99 #define __NR_fstatfs 100 -#define __NR_ioperm 101 #define __NR_socketcall 102 #define __NR_syslog 103 #define __NR_setitimer 104 @@ -131,11 +115,7 @@ #define __NR_sysfs 135 #define __NR_personality 136 #define __NR_afs_syscall 137 /* Syscall for Andrew File System */ -#define __NR_setfsuid 138 -#define __NR_setfsgid 139 -#define __NR__llseek 140 #define __NR_getdents 141 -#define __NR__newselect 142 #define __NR_flock 143 #define __NR_msync 144 #define __NR_readv 145 @@ -157,13 +137,9 @@ #define __NR_sched_rr_get_interval 161 #define __NR_nanosleep 162 #define __NR_mremap 163 -#define __NR_setresuid 164 -#define __NR_getresuid 165 #define __NR_query_module 167 #define __NR_poll 168 #define __NR_nfsservctl 169 -#define __NR_setresgid 170 -#define __NR_getresgid 171 #define __NR_prctl 172 #define __NR_rt_sigreturn 173 #define __NR_rt_sigaction 174 @@ -174,7 +150,6 @@ #define __NR_rt_sigsuspend 179 #define __NR_pread64 180 #define __NR_pwrite64 181 -#define __NR_chown 182 #define __NR_getcwd 183 #define __NR_capget 184 #define __NR_capset 185 @@ -183,39 +158,11 @@ #define __NR_getpmsg 188 #define __NR_putpmsg 189 #define __NR_vfork 190 -#define __NR_ugetrlimit 191 /* SuS compliant getrlimit */ -#define __NR_mmap2 192 -#define __NR_truncate64 193 -#define __NR_ftruncate64 194 -#define __NR_stat64 195 -#define __NR_lstat64 196 -#define __NR_fstat64 197 -#define __NR_lchown32 198 -#define __NR_getuid32 199 -#define __NR_getgid32 200 -#define __NR_geteuid32 201 -#define __NR_getegid32 202 -#define __NR_setreuid32 203 -#define __NR_setregid32 204 -#define __NR_getgroups32 205 -#define __NR_setgroups32 206 -#define __NR_fchown32 207 -#define __NR_setresuid32 208 -#define __NR_getresuid32 209 -#define __NR_setresgid32 210 -#define __NR_getresgid32 211 -#define __NR_chown32 212 -#define __NR_setuid32 213 -#define __NR_setgid32 214 -#define __NR_setfsuid32 215 -#define __NR_setfsgid32 216 #define __NR_pivot_root 217 #define __NR_mincore 218 #define __NR_madvise 219 #define __NR_getdents64 220 -#define __NR_fcntl64 221 #define __NR_readahead 222 -#define __NR_sendfile64 223 #define __NR_setxattr 224 #define __NR_lsetxattr 225 #define __NR_fsetxattr 226 @@ -256,7 +203,6 @@ #define __NR_clock_getres (__NR_timer_create+7) #define __NR_clock_nanosleep (__NR_timer_create+8) /* Number 263 is reserved for vserver */ -#define __NR_fadvise64_64 264 #define __NR_statfs64 265 #define __NR_fstatfs64 266 #define __NR_remap_file_pages 267 @@ -285,7 +231,6 @@ #define __NR_mknodat 290 #define __NR_fchownat 291 #define __NR_futimesat 292 -#define __NR_fstatat64 293 #define __NR_unlinkat 294 #define __NR_renameat 295 #define __NR_linkat 296 @@ -310,62 +255,65 @@ * have a different name although they do the same (e.g. __NR_chown32 * is __NR_chown on 64 bit). */ -#ifdef __s390x__ -#undef __NR_time -#undef __NR_lchown -#undef __NR_setuid -#undef __NR_getuid -#undef __NR_stime -#undef __NR_setgid -#undef __NR_getgid -#undef __NR_geteuid -#undef __NR_getegid -#undef __NR_setreuid -#undef __NR_setregid -#undef __NR_getrlimit -#undef __NR_getgroups -#undef __NR_setgroups -#undef __NR_fchown -#undef __NR_ioperm -#undef __NR_setfsuid -#undef __NR_setfsgid -#undef __NR__llseek -#undef __NR__newselect -#undef __NR_setresuid -#undef __NR_getresuid -#undef __NR_setresgid -#undef __NR_getresgid -#undef __NR_chown -#undef __NR_ugetrlimit -#undef __NR_mmap2 -#undef __NR_truncate64 -#undef __NR_ftruncate64 -#undef __NR_stat64 -#undef __NR_lstat64 -#undef __NR_fstat64 -#undef __NR_lchown32 -#undef __NR_getuid32 -#undef __NR_getgid32 -#undef __NR_geteuid32 -#undef __NR_getegid32 -#undef __NR_setreuid32 -#undef __NR_setregid32 -#undef __NR_getgroups32 -#undef __NR_setgroups32 -#undef __NR_fchown32 -#undef __NR_setresuid32 -#undef __NR_getresuid32 -#undef __NR_setresgid32 -#undef __NR_getresgid32 -#undef __NR_chown32 -#undef __NR_setuid32 -#undef __NR_setgid32 -#undef __NR_setfsuid32 -#undef __NR_setfsgid32 -#undef __NR_fcntl64 -#undef __NR_sendfile64 -#undef __NR_fadvise64_64 -#undef __NR_fstatat64 +#ifndef __s390x__ + +#define __NR_time 13 +#define __NR_lchown 16 +#define __NR_setuid 23 +#define __NR_getuid 24 +#define __NR_stime 25 +#define __NR_setgid 46 +#define __NR_getgid 47 +#define __NR_geteuid 49 +#define __NR_getegid 50 +#define __NR_setreuid 70 +#define __NR_setregid 71 +#define __NR_getrlimit 76 +#define __NR_getgroups 80 +#define __NR_setgroups 81 +#define __NR_fchown 95 +#define __NR_ioperm 101 +#define __NR_setfsuid 138 +#define __NR_setfsgid 139 +#define __NR__llseek 140 +#define __NR__newselect 142 +#define __NR_setresuid 164 +#define __NR_getresuid 165 +#define __NR_setresgid 170 +#define __NR_getresgid 171 +#define __NR_chown 182 +#define __NR_ugetrlimit 191 /* SuS compliant getrlimit */ +#define __NR_mmap2 192 +#define __NR_truncate64 193 +#define __NR_ftruncate64 194 +#define __NR_stat64 195 +#define __NR_lstat64 196 +#define __NR_fstat64 197 +#define __NR_lchown32 198 +#define __NR_getuid32 199 +#define __NR_getgid32 200 +#define __NR_geteuid32 201 +#define __NR_getegid32 202 +#define __NR_setreuid32 203 +#define __NR_setregid32 204 +#define __NR_getgroups32 205 +#define __NR_setgroups32 206 +#define __NR_fchown32 207 +#define __NR_setresuid32 208 +#define __NR_getresuid32 209 +#define __NR_setresgid32 210 +#define __NR_getresgid32 211 +#define __NR_chown32 212 +#define __NR_setuid32 213 +#define __NR_setgid32 214 +#define __NR_setfsuid32 215 +#define __NR_setfsgid32 216 +#define __NR_fcntl64 221 +#define __NR_sendfile64 223 +#define __NR_fadvise64_64 264 +#define __NR_fstatat64 293 + +#else #define __NR_select 142 #define __NR_getrlimit 191 /* SuS compliant getrlimit */ -- cgit v1.2.3 From e87bfe51b5ca2db99dd680bbb1e8fe3c94b607df Mon Sep 17 00:00:00 2001 From: Heiko Carstens Date: Wed, 20 Sep 2006 15:59:15 +0200 Subject: [S390] convert some assembler to C. Convert GET_IPL_DEVICE assembler macro to C function. Signed-off-by: Heiko Carstens Signed-off-by: Martin Schwidefsky --- include/asm-s390/lowcore.h | 1 + include/asm-s390/setup.h | 8 +++++--- 2 files changed, 6 insertions(+), 3 deletions(-) (limited to 'include') diff --git a/include/asm-s390/lowcore.h b/include/asm-s390/lowcore.h index 2e3d4cca5e2..18695d10ded 100644 --- a/include/asm-s390/lowcore.h +++ b/include/asm-s390/lowcore.h @@ -35,6 +35,7 @@ #define __LC_IO_NEW_PSW 0x01f0 #endif /* !__s390x__ */ +#define __LC_IPL_PARMBLOCK_PTR 0x014 #define __LC_EXT_PARAMS 0x080 #define __LC_CPU_ADDRESS 0x084 #define __LC_EXT_INT_CODE 0x086 diff --git a/include/asm-s390/setup.h b/include/asm-s390/setup.h index 4a1126d8439..00c03e46689 100644 --- a/include/asm-s390/setup.h +++ b/include/asm-s390/setup.h @@ -125,13 +125,15 @@ struct ipl_parameter_block { /* * IPL validity flags and parameters as detected in head.S */ -extern u32 ipl_parameter_flags; +extern u32 ipl_flags; extern u16 ipl_devno; void do_reipl(void); -#define IPL_DEVNO_VALID (ipl_parameter_flags & 1) -#define IPL_PARMBLOCK_VALID (ipl_parameter_flags & 2) +enum { + IPL_DEVNO_VALID = 1, + IPL_PARMBLOCK_VALID = 2, +}; #define IPL_PARMBLOCK_START ((struct ipl_parameter_block *) \ IPL_PARMBLOCK_ORIGIN) -- cgit v1.2.3 From 1f38d61347203055b55e34083cce7a9cd8c529a9 Mon Sep 17 00:00:00 2001 From: Gerald Schaefer Date: Wed, 20 Sep 2006 15:59:26 +0200 Subject: [S390] cleanup appldata. Introduce asm header that contains the appldata data structures and the diag inline assembly. Signed-off-by: Gerald Schaefer Signed-off-by: Martin Schwidefsky --- include/asm-s390/appldata.h | 90 +++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 90 insertions(+) create mode 100644 include/asm-s390/appldata.h (limited to 'include') diff --git a/include/asm-s390/appldata.h b/include/asm-s390/appldata.h new file mode 100644 index 00000000000..b1770703b70 --- /dev/null +++ b/include/asm-s390/appldata.h @@ -0,0 +1,90 @@ +/* + * include/asm-s390/appldata.h + * + * Copyright (C) IBM Corp. 2006 + * + * Author(s): Melissa Howland + */ + +#ifndef _ASM_S390_APPLDATA_H +#define _ASM_S390_APPLDATA_H + +#include + +#ifndef CONFIG_64BIT + +#define APPLDATA_START_INTERVAL_REC 0x00 /* Function codes for */ +#define APPLDATA_STOP_REC 0x01 /* DIAG 0xDC */ +#define APPLDATA_GEN_EVENT_REC 0x02 +#define APPLDATA_START_CONFIG_REC 0x03 + +/* + * Parameter list for DIAGNOSE X'DC' + */ +struct appldata_parameter_list { + u16 diag; /* The DIAGNOSE code X'00DC' */ + u8 function; /* The function code for the DIAGNOSE */ + u8 parlist_length; /* Length of the parameter list */ + u32 product_id_addr; /* Address of the 16-byte product ID */ + u16 reserved; + u16 buffer_length; /* Length of the application data buffer */ + u32 buffer_addr; /* Address of the application data buffer */ +} __attribute__ ((packed)); + +#else /* CONFIG_64BIT */ + +#define APPLDATA_START_INTERVAL_REC 0x80 +#define APPLDATA_STOP_REC 0x81 +#define APPLDATA_GEN_EVENT_REC 0x82 +#define APPLDATA_START_CONFIG_REC 0x83 + +/* + * Parameter list for DIAGNOSE X'DC' + */ +struct appldata_parameter_list { + u16 diag; + u8 function; + u8 parlist_length; + u32 unused01; + u16 reserved; + u16 buffer_length; + u32 unused02; + u64 product_id_addr; + u64 buffer_addr; +} __attribute__ ((packed)); + +#endif /* CONFIG_64BIT */ + +struct appldata_product_id { + char prod_nr[7]; /* product number */ + u16 prod_fn; /* product function */ + u8 record_nr; /* record number */ + u16 version_nr; /* version */ + u16 release_nr; /* release */ + u16 mod_lvl; /* modification level */ +} __attribute__ ((packed)); + +static inline int appldata_asm(struct appldata_product_id *id, + unsigned short fn, void *buffer, + unsigned short length) +{ + struct appldata_parameter_list parm_list; + int ry; + + if (!MACHINE_IS_VM) + return -ENOSYS; + parm_list.diag = 0xdc; + parm_list.function = fn; + parm_list.parlist_length = sizeof(parm_list); + parm_list.buffer_length = length; + parm_list.product_id_addr = (unsigned long) id; + parm_list.buffer_addr = virt_to_phys(buffer); + asm volatile( + "diag %1,%0,0xdc" + : "=d" (ry) + : "d" (&parm_list), "m" (parm_list), "m" (*id) + : "cc"); + return ry; +} + +#endif /* _ASM_S390_APPLDATA_H */ -- cgit v1.2.3 From 31b58088292c7f00f0b81088bfb557285b0b6247 Mon Sep 17 00:00:00 2001 From: Melissa Howland Date: Wed, 20 Sep 2006 15:59:34 +0200 Subject: [S390] Linux API for writing z/VM APPLDATA Monitor records. This patch delivers a new Linux API in the form of a misc char device that is useable from user space and allows write access to the z/VM APPLDATA Monitor Records collected by the *MONITOR System Service of z/VM. Signed-off-by: Melissa Howland Signed-off-by: Martin Schwidefsky --- include/asm-s390/Kbuild | 2 +- include/asm-s390/monwriter.h | 33 +++++++++++++++++++++++++++++++++ 2 files changed, 34 insertions(+), 1 deletion(-) create mode 100644 include/asm-s390/monwriter.h (limited to 'include') diff --git a/include/asm-s390/Kbuild b/include/asm-s390/Kbuild index ed8955f49e4..979145026a2 100644 --- a/include/asm-s390/Kbuild +++ b/include/asm-s390/Kbuild @@ -1,4 +1,4 @@ include include/asm-generic/Kbuild.asm unifdef-y += cmb.h debug.h -header-y += dasd.h qeth.h tape390.h ucontext.h vtoc.h z90crypt.h +header-y += dasd.h monwriter.h qeth.h tape390.h ucontext.h vtoc.h z90crypt.h diff --git a/include/asm-s390/monwriter.h b/include/asm-s390/monwriter.h new file mode 100644 index 00000000000..f0cbf96c52e --- /dev/null +++ b/include/asm-s390/monwriter.h @@ -0,0 +1,33 @@ +/* + * include/asm-s390/monwriter.h + * + * Copyright (C) IBM Corp. 2006 + * Character device driver for writing z/VM APPLDATA monitor records + * Version 1.0 + * Author(s): Melissa Howland + * + */ + +#ifndef _ASM_390_MONWRITER_H +#define _ASM_390_MONWRITER_H + +/* mon_function values */ +#define MONWRITE_START_INTERVAL 0x00 /* start interval recording */ +#define MONWRITE_STOP_INTERVAL 0x01 /* stop interval or config recording */ +#define MONWRITE_GEN_EVENT 0x02 /* generate event record */ +#define MONWRITE_START_CONFIG 0x03 /* start configuration recording */ + +/* the header the app uses in its write() data */ +struct monwrite_hdr { + unsigned char mon_function; + unsigned short applid; + unsigned char record_num; + unsigned short version; + unsigned short release; + unsigned short mod_level; + unsigned short datalen; + unsigned char hdrlen; + +} __attribute__((packed)); + +#endif /* _ASM_390_MONWRITER_H */ -- cgit v1.2.3 From 9282ed929758b82f448a40d3c17319d794970624 Mon Sep 17 00:00:00 2001 From: Gerald Schaefer Date: Wed, 20 Sep 2006 15:59:37 +0200 Subject: [S390] Cleanup in page table related code. Changed and simplified some page table related #defines and code. Signed-off-by: Gerald Schaefer Signed-off-by: Martin Schwidefsky --- include/asm-s390/pgalloc.h | 67 ++++++++++++------------ include/asm-s390/pgtable.h | 124 +++++++++++++++++++++------------------------ 2 files changed, 92 insertions(+), 99 deletions(-) (limited to 'include') diff --git a/include/asm-s390/pgalloc.h b/include/asm-s390/pgalloc.h index a78e853e0dd..803bc706441 100644 --- a/include/asm-s390/pgalloc.h +++ b/include/asm-s390/pgalloc.h @@ -21,6 +21,16 @@ extern void diag10(unsigned long addr); +/* + * Page allocation orders. + */ +#ifndef __s390x__ +# define PGD_ALLOC_ORDER 1 +#else /* __s390x__ */ +# define PMD_ALLOC_ORDER 2 +# define PGD_ALLOC_ORDER 2 +#endif /* __s390x__ */ + /* * Allocate and free page tables. The xxx_kernel() versions are * used to allocate a kernel page table - this turns on ASN bits @@ -29,30 +39,23 @@ extern void diag10(unsigned long addr); static inline pgd_t *pgd_alloc(struct mm_struct *mm) { - pgd_t *pgd; + pgd_t *pgd = (pgd_t *) __get_free_pages(GFP_KERNEL, PGD_ALLOC_ORDER); int i; + if (!pgd) + return NULL; + for (i = 0; i < PTRS_PER_PGD; i++) #ifndef __s390x__ - pgd = (pgd_t *) __get_free_pages(GFP_KERNEL,1); - if (pgd != NULL) - for (i = 0; i < USER_PTRS_PER_PGD; i++) - pmd_clear(pmd_offset(pgd + i, i*PGDIR_SIZE)); -#else /* __s390x__ */ - pgd = (pgd_t *) __get_free_pages(GFP_KERNEL,2); - if (pgd != NULL) - for (i = 0; i < PTRS_PER_PGD; i++) - pgd_clear(pgd + i); -#endif /* __s390x__ */ + pmd_clear(pmd_offset(pgd + i, i*PGDIR_SIZE)); +#else + pgd_clear(pgd + i); +#endif return pgd; } static inline void pgd_free(pgd_t *pgd) { -#ifndef __s390x__ - free_pages((unsigned long) pgd, 1); -#else /* __s390x__ */ - free_pages((unsigned long) pgd, 2); -#endif /* __s390x__ */ + free_pages((unsigned long) pgd, PGD_ALLOC_ORDER); } #ifndef __s390x__ @@ -68,20 +71,19 @@ static inline void pgd_free(pgd_t *pgd) #else /* __s390x__ */ static inline pmd_t * pmd_alloc_one(struct mm_struct *mm, unsigned long vmaddr) { - pmd_t *pmd; - int i; + pmd_t *pmd = (pmd_t *) __get_free_pages(GFP_KERNEL, PMD_ALLOC_ORDER); + int i; - pmd = (pmd_t *) __get_free_pages(GFP_KERNEL, 2); - if (pmd != NULL) { - for (i=0; i < PTRS_PER_PMD; i++) - pmd_clear(pmd+i); - } + if (!pmd) + return NULL; + for (i=0; i < PTRS_PER_PMD; i++) + pmd_clear(pmd + i); return pmd; } static inline void pmd_free (pmd_t *pmd) { - free_pages((unsigned long) pmd, 2); + free_pages((unsigned long) pmd, PMD_ALLOC_ORDER); } #define __pmd_free_tlb(tlb,pmd) \ @@ -123,15 +125,14 @@ pmd_populate(struct mm_struct *mm, pmd_t *pmd, struct page *page) static inline pte_t * pte_alloc_one_kernel(struct mm_struct *mm, unsigned long vmaddr) { - pte_t *pte; - int i; - - pte = (pte_t *)__get_free_page(GFP_KERNEL|__GFP_REPEAT); - if (pte != NULL) { - for (i=0; i < PTRS_PER_PTE; i++) { - pte_clear(mm, vmaddr, pte+i); - vmaddr += PAGE_SIZE; - } + pte_t *pte = (pte_t *) __get_free_page(GFP_KERNEL|__GFP_REPEAT); + int i; + + if (!pte) + return NULL; + for (i=0; i < PTRS_PER_PTE; i++) { + pte_clear(mm, vmaddr, pte + i); + vmaddr += PAGE_SIZE; } return pte; } diff --git a/include/asm-s390/pgtable.h b/include/asm-s390/pgtable.h index 24312387fa2..1a07028d575 100644 --- a/include/asm-s390/pgtable.h +++ b/include/asm-s390/pgtable.h @@ -89,19 +89,6 @@ extern char empty_zero_page[PAGE_SIZE]; # define PTRS_PER_PGD 2048 #endif /* __s390x__ */ -/* - * pgd entries used up by user/kernel: - */ -#ifndef __s390x__ -# define USER_PTRS_PER_PGD 512 -# define USER_PGD_PTRS 512 -# define KERNEL_PGD_PTRS 512 -#else /* __s390x__ */ -# define USER_PTRS_PER_PGD 2048 -# define USER_PGD_PTRS 2048 -# define KERNEL_PGD_PTRS 2048 -#endif /* __s390x__ */ - #define FIRST_USER_ADDRESS 0 #define pte_ERROR(e) \ @@ -216,12 +203,14 @@ extern char empty_zero_page[PAGE_SIZE]; #define _PAGE_RO 0x200 /* HW read-only */ #define _PAGE_INVALID 0x400 /* HW invalid */ -/* Mask and four different kinds of invalid pages. */ -#define _PAGE_INVALID_MASK 0x601 -#define _PAGE_INVALID_EMPTY 0x400 -#define _PAGE_INVALID_NONE 0x401 -#define _PAGE_INVALID_SWAP 0x600 -#define _PAGE_INVALID_FILE 0x601 +/* Mask and six different types of pages. */ +#define _PAGE_TYPE_MASK 0x601 +#define _PAGE_TYPE_EMPTY 0x400 +#define _PAGE_TYPE_NONE 0x401 +#define _PAGE_TYPE_SWAP 0x600 +#define _PAGE_TYPE_FILE 0x601 +#define _PAGE_TYPE_RO 0x200 +#define _PAGE_TYPE_RW 0x000 #ifndef __s390x__ @@ -280,15 +269,14 @@ extern char empty_zero_page[PAGE_SIZE]; #endif /* __s390x__ */ /* - * No mapping available + * Page protection definitions. */ -#define PAGE_NONE_SHARED __pgprot(_PAGE_INVALID_NONE) -#define PAGE_NONE_PRIVATE __pgprot(_PAGE_INVALID_NONE) -#define PAGE_RO_SHARED __pgprot(_PAGE_RO) -#define PAGE_RO_PRIVATE __pgprot(_PAGE_RO) -#define PAGE_COPY __pgprot(_PAGE_RO) -#define PAGE_SHARED __pgprot(0) -#define PAGE_KERNEL __pgprot(0) +#define PAGE_NONE __pgprot(_PAGE_TYPE_NONE) +#define PAGE_RO __pgprot(_PAGE_TYPE_RO) +#define PAGE_RW __pgprot(_PAGE_TYPE_RW) + +#define PAGE_KERNEL PAGE_RW +#define PAGE_COPY PAGE_RO /* * The S390 can't do page protection for execute, and considers that the @@ -296,23 +284,23 @@ extern char empty_zero_page[PAGE_SIZE]; * the closest we can get.. */ /*xwr*/ -#define __P000 PAGE_NONE_PRIVATE -#define __P001 PAGE_RO_PRIVATE -#define __P010 PAGE_COPY -#define __P011 PAGE_COPY -#define __P100 PAGE_RO_PRIVATE -#define __P101 PAGE_RO_PRIVATE -#define __P110 PAGE_COPY -#define __P111 PAGE_COPY - -#define __S000 PAGE_NONE_SHARED -#define __S001 PAGE_RO_SHARED -#define __S010 PAGE_SHARED -#define __S011 PAGE_SHARED -#define __S100 PAGE_RO_SHARED -#define __S101 PAGE_RO_SHARED -#define __S110 PAGE_SHARED -#define __S111 PAGE_SHARED +#define __P000 PAGE_NONE +#define __P001 PAGE_RO +#define __P010 PAGE_RO +#define __P011 PAGE_RO +#define __P100 PAGE_RO +#define __P101 PAGE_RO +#define __P110 PAGE_RO +#define __P111 PAGE_RO + +#define __S000 PAGE_NONE +#define __S001 PAGE_RO +#define __S010 PAGE_RW +#define __S011 PAGE_RW +#define __S100 PAGE_RO +#define __S101 PAGE_RO +#define __S110 PAGE_RW +#define __S111 PAGE_RW /* * Certain architectures need to do special things when PTEs @@ -377,18 +365,18 @@ static inline int pmd_bad(pmd_t pmd) static inline int pte_none(pte_t pte) { - return (pte_val(pte) & _PAGE_INVALID_MASK) == _PAGE_INVALID_EMPTY; + return (pte_val(pte) & _PAGE_TYPE_MASK) == _PAGE_TYPE_EMPTY; } static inline int pte_present(pte_t pte) { return !(pte_val(pte) & _PAGE_INVALID) || - (pte_val(pte) & _PAGE_INVALID_MASK) == _PAGE_INVALID_NONE; + (pte_val(pte) & _PAGE_TYPE_MASK) == _PAGE_TYPE_NONE; } static inline int pte_file(pte_t pte) { - return (pte_val(pte) & _PAGE_INVALID_MASK) == _PAGE_INVALID_FILE; + return (pte_val(pte) & _PAGE_TYPE_MASK) == _PAGE_TYPE_FILE; } #define pte_same(a,b) (pte_val(a) == pte_val(b)) @@ -461,7 +449,7 @@ static inline void pmd_clear(pmd_t * pmdp) static inline void pte_clear(struct mm_struct *mm, unsigned long addr, pte_t *ptep) { - pte_val(*ptep) = _PAGE_INVALID_EMPTY; + pte_val(*ptep) = _PAGE_TYPE_EMPTY; } /* @@ -477,7 +465,7 @@ static inline pte_t pte_modify(pte_t pte, pgprot_t newprot) static inline pte_t pte_wrprotect(pte_t pte) { - /* Do not clobber _PAGE_INVALID_NONE pages! */ + /* Do not clobber _PAGE_TYPE_NONE pages! */ if (!(pte_val(pte) & _PAGE_INVALID)) pte_val(pte) |= _PAGE_RO; return pte; @@ -556,26 +544,30 @@ static inline pte_t ptep_get_and_clear(struct mm_struct *mm, unsigned long addr, return pte; } -static inline pte_t -ptep_clear_flush(struct vm_area_struct *vma, - unsigned long address, pte_t *ptep) +static inline void __ptep_ipte(unsigned long address, pte_t *ptep) { - pte_t pte = *ptep; + if (!(pte_val(*ptep) & _PAGE_INVALID)) { #ifndef __s390x__ - if (!(pte_val(pte) & _PAGE_INVALID)) { /* S390 has 1mb segments, we are emulating 4MB segments */ pte_t *pto = (pte_t *) (((unsigned long) ptep) & 0x7ffffc00); - __asm__ __volatile__ ("ipte %2,%3" - : "=m" (*ptep) : "m" (*ptep), - "a" (pto), "a" (address) ); +#else + /* ipte in zarch mode can do the math */ + pte_t *pto = ptep; +#endif + asm volatile ("ipte %2,%3" + : "=m" (*ptep) : "m" (*ptep), + "a" (pto), "a" (address) ); } -#else /* __s390x__ */ - if (!(pte_val(pte) & _PAGE_INVALID)) - __asm__ __volatile__ ("ipte %2,%3" - : "=m" (*ptep) : "m" (*ptep), - "a" (ptep), "a" (address) ); -#endif /* __s390x__ */ - pte_val(*ptep) = _PAGE_INVALID_EMPTY; + pte_val(*ptep) = _PAGE_TYPE_EMPTY; +} + +static inline pte_t +ptep_clear_flush(struct vm_area_struct *vma, + unsigned long address, pte_t *ptep) +{ + pte_t pte = *ptep; + + __ptep_ipte(address, ptep); return pte; } @@ -755,7 +747,7 @@ static inline pte_t mk_swap_pte(unsigned long type, unsigned long offset) { pte_t pte; offset &= __SWP_OFFSET_MASK; - pte_val(pte) = _PAGE_INVALID_SWAP | ((type & 0x1f) << 2) | + pte_val(pte) = _PAGE_TYPE_SWAP | ((type & 0x1f) << 2) | ((offset & 1UL) << 7) | ((offset & ~1UL) << 11); return pte; } @@ -778,7 +770,7 @@ static inline pte_t mk_swap_pte(unsigned long type, unsigned long offset) #define pgoff_to_pte(__off) \ ((pte_t) { ((((__off) & 0x7f) << 1) + (((__off) >> 7) << 12)) \ - | _PAGE_INVALID_FILE }) + | _PAGE_TYPE_FILE }) #endif /* !__ASSEMBLY__ */ -- cgit v1.2.3 From d02765d1af743567398eb6d523dea0ba5e5e7e8e Mon Sep 17 00:00:00 2001 From: Gerald Schaefer Date: Wed, 20 Sep 2006 15:59:42 +0200 Subject: [S390] Make user-copy operations run-time configurable. Introduces a struct uaccess_ops which allows setting user-copy operations at run-time. Signed-off-by: Gerald Schaefer Signed-off-by: Martin Schwidefsky --- include/asm-s390/futex.h | 87 ++--------------------- include/asm-s390/uaccess.h | 171 +++++++++++++++------------------------------ 2 files changed, 63 insertions(+), 195 deletions(-) (limited to 'include') diff --git a/include/asm-s390/futex.h b/include/asm-s390/futex.h index ffedf14f89f..5e261e1de67 100644 --- a/include/asm-s390/futex.h +++ b/include/asm-s390/futex.h @@ -7,75 +7,21 @@ #include #include -#ifndef __s390x__ -#define __futex_atomic_fixup \ - ".section __ex_table,\"a\"\n" \ - " .align 4\n" \ - " .long 0b,4b,2b,4b,3b,4b\n" \ - ".previous" -#else /* __s390x__ */ -#define __futex_atomic_fixup \ - ".section __ex_table,\"a\"\n" \ - " .align 8\n" \ - " .quad 0b,4b,2b,4b,3b,4b\n" \ - ".previous" -#endif /* __s390x__ */ - -#define __futex_atomic_op(insn, ret, oldval, newval, uaddr, oparg) \ - asm volatile(" sacf 256\n" \ - "0: l %1,0(%6)\n" \ - "1: " insn \ - "2: cs %1,%2,0(%6)\n" \ - "3: jl 1b\n" \ - " lhi %0,0\n" \ - "4: sacf 0\n" \ - __futex_atomic_fixup \ - : "=d" (ret), "=&d" (oldval), "=&d" (newval), \ - "=m" (*uaddr) \ - : "0" (-EFAULT), "d" (oparg), "a" (uaddr), \ - "m" (*uaddr) : "cc" ); - static inline int futex_atomic_op_inuser (int encoded_op, int __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; + int oldval, ret; + if (encoded_op & (FUTEX_OP_OPARG_SHIFT << 28)) oparg = 1 << oparg; if (! access_ok (VERIFY_WRITE, uaddr, sizeof(int))) return -EFAULT; - inc_preempt_count(); - - switch (op) { - case FUTEX_OP_SET: - __futex_atomic_op("lr %2,%5\n", - ret, oldval, newval, uaddr, oparg); - break; - case FUTEX_OP_ADD: - __futex_atomic_op("lr %2,%1\nar %2,%5\n", - ret, oldval, newval, uaddr, oparg); - break; - case FUTEX_OP_OR: - __futex_atomic_op("lr %2,%1\nor %2,%5\n", - ret, oldval, newval, uaddr, oparg); - break; - case FUTEX_OP_ANDN: - __futex_atomic_op("lr %2,%1\nnr %2,%5\n", - ret, oldval, newval, uaddr, oparg); - break; - case FUTEX_OP_XOR: - __futex_atomic_op("lr %2,%1\nxr %2,%5\n", - ret, oldval, newval, uaddr, oparg); - break; - default: - ret = -ENOSYS; - } - - dec_preempt_count(); + ret = uaccess.futex_atomic_op(op, uaddr, oparg, &oldval); if (!ret) { switch (cmp) { @@ -91,32 +37,13 @@ static inline int futex_atomic_op_inuser (int encoded_op, int __user *uaddr) return ret; } -static inline int -futex_atomic_cmpxchg_inatomic(int __user *uaddr, int oldval, int newval) +static inline int futex_atomic_cmpxchg_inatomic(int __user *uaddr, + int oldval, int newval) { - int ret; - if (! access_ok (VERIFY_WRITE, uaddr, sizeof(int))) return -EFAULT; - asm volatile(" sacf 256\n" - " cs %1,%4,0(%5)\n" - "0: lr %0,%1\n" - "1: sacf 0\n" -#ifndef __s390x__ - ".section __ex_table,\"a\"\n" - " .align 4\n" - " .long 0b,1b\n" - ".previous" -#else /* __s390x__ */ - ".section __ex_table,\"a\"\n" - " .align 8\n" - " .quad 0b,1b\n" - ".previous" -#endif /* __s390x__ */ - : "=d" (ret), "+d" (oldval), "=m" (*uaddr) - : "0" (-EFAULT), "d" (newval), "a" (uaddr), "m" (*uaddr) - : "cc", "memory" ); - return oldval; + + return uaccess.futex_atomic_cmpxchg(uaddr, oldval, newval); } #endif /* __KERNEL__ */ diff --git a/include/asm-s390/uaccess.h b/include/asm-s390/uaccess.h index 0b7c0ca4c3d..39a2716ae18 100644 --- a/include/asm-s390/uaccess.h +++ b/include/asm-s390/uaccess.h @@ -47,7 +47,7 @@ S390_lowcore.user_asce : S390_lowcore.kernel_asce; \ asm volatile ("lctlg 7,7,%0" : : "m" (__pto) ); \ }) -#else +#else /* __s390x__ */ #define set_fs(x) \ ({ \ unsigned long __pto; \ @@ -56,7 +56,7 @@ S390_lowcore.user_asce : S390_lowcore.kernel_asce; \ asm volatile ("lctl 7,7,%0" : : "m" (__pto) ); \ }) -#endif +#endif /* __s390x__ */ #define segment_eq(a,b) ((a).ar4 == (b).ar4) @@ -85,76 +85,50 @@ struct exception_table_entry unsigned long insn, fixup; }; -#ifndef __s390x__ -#define __uaccess_fixup \ - ".section .fixup,\"ax\"\n" \ - "2: lhi %0,%4\n" \ - " bras 1,3f\n" \ - " .long 1b\n" \ - "3: l 1,0(1)\n" \ - " br 1\n" \ - ".previous\n" \ - ".section __ex_table,\"a\"\n" \ - " .align 4\n" \ - " .long 0b,2b\n" \ - ".previous" -#define __uaccess_clobber "cc", "1" -#else /* __s390x__ */ -#define __uaccess_fixup \ - ".section .fixup,\"ax\"\n" \ - "2: lghi %0,%4\n" \ - " jg 1b\n" \ - ".previous\n" \ - ".section __ex_table,\"a\"\n" \ - " .align 8\n" \ - " .quad 0b,2b\n" \ - ".previous" -#define __uaccess_clobber "cc" -#endif /* __s390x__ */ +struct uaccess_ops { + size_t (*copy_from_user)(size_t, const void __user *, void *); + size_t (*copy_from_user_small)(size_t, const void __user *, void *); + size_t (*copy_to_user)(size_t, void __user *, const void *); + size_t (*copy_to_user_small)(size_t, void __user *, const void *); + size_t (*copy_in_user)(size_t, void __user *, const void __user *); + size_t (*clear_user)(size_t, void __user *); + size_t (*strnlen_user)(size_t, const char __user *); + size_t (*strncpy_from_user)(size_t, const char __user *, char *); + int (*futex_atomic_op)(int op, int __user *, int oparg, int *old); + int (*futex_atomic_cmpxchg)(int __user *, int old, int new); +}; + +extern struct uaccess_ops uaccess; +extern struct uaccess_ops uaccess_std; + +static inline int __put_user_fn(size_t size, void __user *ptr, void *x) +{ + size = uaccess.copy_to_user_small(size, ptr, x); + return size ? -EFAULT : size; +} + +static inline int __get_user_fn(size_t size, const void __user *ptr, void *x) +{ + size = uaccess.copy_from_user_small(size, ptr, x); + return size ? -EFAULT : size; +} /* * These are the main single-value transfer routines. They automatically * use the right size if we just have the right pointer type. */ -#if __GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ > 2) -#define __put_user_asm(x, ptr, err) \ -({ \ - err = 0; \ - asm volatile( \ - "0: mvcs 0(%1,%2),%3,%0\n" \ - "1:\n" \ - __uaccess_fixup \ - : "+&d" (err) \ - : "d" (sizeof(*(ptr))), "a" (ptr), "Q" (x), \ - "K" (-EFAULT) \ - : __uaccess_clobber ); \ -}) -#else -#define __put_user_asm(x, ptr, err) \ -({ \ - err = 0; \ - asm volatile( \ - "0: mvcs 0(%1,%2),0(%3),%0\n" \ - "1:\n" \ - __uaccess_fixup \ - : "+&d" (err) \ - : "d" (sizeof(*(ptr))), "a" (ptr), "a" (&(x)), \ - "K" (-EFAULT), "m" (x) \ - : __uaccess_clobber ); \ -}) -#endif - #define __put_user(x, ptr) \ ({ \ __typeof__(*(ptr)) __x = (x); \ - int __pu_err; \ + int __pu_err = -EFAULT; \ __chk_user_ptr(ptr); \ switch (sizeof (*(ptr))) { \ case 1: \ case 2: \ case 4: \ case 8: \ - __put_user_asm(__x, ptr, __pu_err); \ + __pu_err = __put_user_fn(sizeof (*(ptr)), \ + ptr, &__x); \ break; \ default: \ __put_user_bad(); \ @@ -172,60 +146,36 @@ struct exception_table_entry extern int __put_user_bad(void) __attribute__((noreturn)); -#if __GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ > 2) -#define __get_user_asm(x, ptr, err) \ -({ \ - err = 0; \ - asm volatile ( \ - "0: mvcp %O1(%2,%R1),0(%3),%0\n" \ - "1:\n" \ - __uaccess_fixup \ - : "+&d" (err), "=Q" (x) \ - : "d" (sizeof(*(ptr))), "a" (ptr), \ - "K" (-EFAULT) \ - : __uaccess_clobber ); \ -}) -#else -#define __get_user_asm(x, ptr, err) \ -({ \ - err = 0; \ - asm volatile ( \ - "0: mvcp 0(%2,%5),0(%3),%0\n" \ - "1:\n" \ - __uaccess_fixup \ - : "+&d" (err), "=m" (x) \ - : "d" (sizeof(*(ptr))), "a" (ptr), \ - "K" (-EFAULT), "a" (&(x)) \ - : __uaccess_clobber ); \ -}) -#endif - #define __get_user(x, ptr) \ ({ \ - int __gu_err; \ - __chk_user_ptr(ptr); \ + int __gu_err = -EFAULT; \ + __chk_user_ptr(ptr); \ switch (sizeof(*(ptr))) { \ case 1: { \ unsigned char __x; \ - __get_user_asm(__x, ptr, __gu_err); \ + __gu_err = __get_user_fn(sizeof (*(ptr)), \ + ptr, &__x); \ (x) = *(__force __typeof__(*(ptr)) *) &__x; \ break; \ }; \ case 2: { \ unsigned short __x; \ - __get_user_asm(__x, ptr, __gu_err); \ + __gu_err = __get_user_fn(sizeof (*(ptr)), \ + ptr, &__x); \ (x) = *(__force __typeof__(*(ptr)) *) &__x; \ break; \ }; \ case 4: { \ unsigned int __x; \ - __get_user_asm(__x, ptr, __gu_err); \ + __gu_err = __get_user_fn(sizeof (*(ptr)), \ + ptr, &__x); \ (x) = *(__force __typeof__(*(ptr)) *) &__x; \ break; \ }; \ case 8: { \ unsigned long long __x; \ - __get_user_asm(__x, ptr, __gu_err); \ + __gu_err = __get_user_fn(sizeof (*(ptr)), \ + ptr, &__x); \ (x) = *(__force __typeof__(*(ptr)) *) &__x; \ break; \ }; \ @@ -247,8 +197,6 @@ extern int __get_user_bad(void) __attribute__((noreturn)); #define __put_user_unaligned __put_user #define __get_user_unaligned __get_user -extern long __copy_to_user_asm(const void *from, long n, void __user *to); - /** * __copy_to_user: - Copy a block of data into user space, with less checking. * @to: Destination address, in user space. @@ -266,7 +214,10 @@ extern long __copy_to_user_asm(const void *from, long n, void __user *to); static inline unsigned long __copy_to_user(void __user *to, const void *from, unsigned long n) { - return __copy_to_user_asm(from, n, to); + if (__builtin_constant_p(n) && (n <= 256)) + return uaccess.copy_to_user_small(n, to, from); + else + return uaccess.copy_to_user(n, to, from); } #define __copy_to_user_inatomic __copy_to_user @@ -294,8 +245,6 @@ copy_to_user(void __user *to, const void *from, unsigned long n) return n; } -extern long __copy_from_user_asm(void *to, long n, const void __user *from); - /** * __copy_from_user: - Copy a block of data from user space, with less checking. * @to: Destination address, in kernel space. @@ -316,7 +265,10 @@ extern long __copy_from_user_asm(void *to, long n, const void __user *from); static inline unsigned long __copy_from_user(void *to, const void __user *from, unsigned long n) { - return __copy_from_user_asm(to, n, from); + if (__builtin_constant_p(n) && (n <= 256)) + return uaccess.copy_from_user_small(n, from, to); + else + return uaccess.copy_from_user(n, from, to); } /** @@ -346,13 +298,10 @@ copy_from_user(void *to, const void __user *from, unsigned long n) return n; } -extern unsigned long __copy_in_user_asm(const void __user *from, long n, - void __user *to); - static inline unsigned long __copy_in_user(void __user *to, const void __user *from, unsigned long n) { - return __copy_in_user_asm(from, n, to); + return uaccess.copy_in_user(n, to, from); } static inline unsigned long @@ -360,34 +309,28 @@ copy_in_user(void __user *to, const void __user *from, unsigned long n) { might_sleep(); if (__access_ok(from,n) && __access_ok(to,n)) - n = __copy_in_user_asm(from, n, to); + n = __copy_in_user(to, from, n); return n; } /* * Copy a null terminated string from userspace. */ -extern long __strncpy_from_user_asm(long count, char *dst, - const char __user *src); - static inline long strncpy_from_user(char *dst, const char __user *src, long count) { long res = -EFAULT; might_sleep(); if (access_ok(VERIFY_READ, src, 1)) - res = __strncpy_from_user_asm(count, dst, src); + res = uaccess.strncpy_from_user(count, src, dst); return res; } - -extern long __strnlen_user_asm(long count, const char __user *src); - static inline unsigned long strnlen_user(const char __user * src, unsigned long n) { might_sleep(); - return __strnlen_user_asm(n, src); + return uaccess.strnlen_user(n, src); } /** @@ -410,12 +353,10 @@ strnlen_user(const char __user * src, unsigned long n) * Zero Userspace */ -extern long __clear_user_asm(void __user *to, long n); - static inline unsigned long __clear_user(void __user *to, unsigned long n) { - return __clear_user_asm(to, n); + return uaccess.clear_user(n, to); } static inline unsigned long @@ -423,7 +364,7 @@ clear_user(void __user *to, unsigned long n) { might_sleep(); if (access_ok(VERIFY_WRITE, to, n)) - n = __clear_user_asm(to, n); + n = uaccess.clear_user(n, to); return n; } -- cgit v1.2.3 From 6c2a9e6df60478e712f3c3d98b5047778a82a3d7 Mon Sep 17 00:00:00 2001 From: Gerald Schaefer Date: Wed, 20 Sep 2006 15:59:44 +0200 Subject: [S390] Use alternative user-copy operations for new hardware. This introduces new user-copy operations which are optimized for copying more than 256 Bytes on new hardware. Signed-off-by: Gerald Schaefer Signed-off-by: Martin Schwidefsky --- include/asm-s390/setup.h | 2 ++ include/asm-s390/uaccess.h | 1 + 2 files changed, 3 insertions(+) (limited to 'include') diff --git a/include/asm-s390/setup.h b/include/asm-s390/setup.h index 00c03e46689..f1959732b6f 100644 --- a/include/asm-s390/setup.h +++ b/include/asm-s390/setup.h @@ -44,10 +44,12 @@ extern unsigned long machine_flags; #define MACHINE_HAS_IEEE (machine_flags & 2) #define MACHINE_HAS_CSP (machine_flags & 8) #define MACHINE_HAS_DIAG44 (1) +#define MACHINE_HAS_MVCOS (0) #else /* __s390x__ */ #define MACHINE_HAS_IEEE (1) #define MACHINE_HAS_CSP (1) #define MACHINE_HAS_DIAG44 (machine_flags & 32) +#define MACHINE_HAS_MVCOS (machine_flags & 512) #endif /* __s390x__ */ diff --git a/include/asm-s390/uaccess.h b/include/asm-s390/uaccess.h index 39a2716ae18..e2047b0c909 100644 --- a/include/asm-s390/uaccess.h +++ b/include/asm-s390/uaccess.h @@ -100,6 +100,7 @@ struct uaccess_ops { extern struct uaccess_ops uaccess; extern struct uaccess_ops uaccess_std; +extern struct uaccess_ops uaccess_mvcos; static inline int __put_user_fn(size_t size, void __user *ptr, void *x) { -- cgit v1.2.3