diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2016-05-18 12:17:16 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2016-05-18 12:17:16 -0700 |
commit | f61a657fdf221403d99e6f0d4c6d24762920d4a9 (patch) | |
tree | 54c5413977be2acdffcb31ee058af333ba3679a3 /arch/s390/include | |
parent | 0e034f5c4bc408c943f9c4a06244415d75d7108c (diff) | |
parent | c53db5222b92d1df384a89ceba7808f8e4c535dd (diff) | |
download | op-kernel-dev-f61a657fdf221403d99e6f0d4c6d24762920d4a9.zip op-kernel-dev-f61a657fdf221403d99e6f0d4c6d24762920d4a9.tar.gz |
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux
Pull s390 updates from Martin Schwidefsky:
"The s390 patches for the 4.7 merge window have the usual bug fixes and
cleanups, and the following new features:
- An interface for dasd driver to query if a volume is online to
another operating system
- A new ioctl for the dasd driver to verify the format for a range of
tracks
- Following the example of x86 the struct fpu is now allocated with
the task_struct
- The 'report_error' interface for the PCI bus to send an
adapter-error notification from user space to the service element
of the machine"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: (29 commits)
s390/vmem: remove unused function parameter
s390/vmem: fix identity mapping
s390: add missing include statements
s390: add missing declarations
s390: make couple of variables and functions static
s390/cache: remove superfluous locking
s390/cpuinfo: simplify locking and skip offline cpus early
s390/3270: hangup the 3270 tty after a disconnect
s390/3270: handle reconnect of a tty with a different size
s390/3270: avoid endless I/O loop with disconnected 3270 terminals
s390/3270: fix garbled output on 3270 tty view
s390/3270: fix view reference counting
s390/3270: add missing tty_kref_put
s390/dumpstack: implement and use return_address()
s390/cpum_sf: Remove superfluous SMP function call
s390/cpum_cf: Remove superfluous SMP function call
s390/Kconfig: make z196 the default processor type
s390/sclp: avoid compile warning in sclp_pci_report
s390/fpu: allocate 'struct fpu' with the task_struct
s390/crypto: cleanup and move the header with the cpacf definitions
...
Diffstat (limited to 'arch/s390/include')
-rw-r--r-- | arch/s390/include/asm/cpacf.h | 410 | ||||
-rw-r--r-- | arch/s390/include/asm/fpu/types.h | 10 | ||||
-rw-r--r-- | arch/s390/include/asm/ftrace.h | 4 | ||||
-rw-r--r-- | arch/s390/include/asm/pci.h | 35 | ||||
-rw-r--r-- | arch/s390/include/asm/processor.h | 9 | ||||
-rw-r--r-- | arch/s390/include/asm/sclp.h | 13 | ||||
-rw-r--r-- | arch/s390/include/asm/thread_info.h | 1 | ||||
-rw-r--r-- | arch/s390/include/uapi/asm/dasd.h | 32 |
8 files changed, 499 insertions, 15 deletions
diff --git a/arch/s390/include/asm/cpacf.h b/arch/s390/include/asm/cpacf.h new file mode 100644 index 0000000..1a82cf2 --- /dev/null +++ b/arch/s390/include/asm/cpacf.h @@ -0,0 +1,410 @@ +/* + * CP Assist for Cryptographic Functions (CPACF) + * + * Copyright IBM Corp. 2003, 2016 + * Author(s): Thomas Spatzier + * Jan Glauber + * Harald Freudenberger (freude@de.ibm.com) + * Martin Schwidefsky <schwidefsky@de.ibm.com> + */ +#ifndef _ASM_S390_CPACF_H +#define _ASM_S390_CPACF_H + +#include <asm/facility.h> + +/* + * Instruction opcodes for the CPACF instructions + */ +#define CPACF_KMAC 0xb91e /* MSA */ +#define CPACF_KM 0xb92e /* MSA */ +#define CPACF_KMC 0xb92f /* MSA */ +#define CPACF_KIMD 0xb93e /* MSA */ +#define CPACF_KLMD 0xb93f /* MSA */ +#define CPACF_PCC 0xb92c /* MSA4 */ +#define CPACF_KMCTR 0xb92d /* MSA4 */ +#define CPACF_PPNO 0xb93c /* MSA5 */ + +/* + * Function codes for the KM (CIPHER MESSAGE) + * instruction (0x80 is the decipher modifier bit) + */ +#define CPACF_KM_QUERY 0x00 +#define CPACF_KM_DEA_ENC 0x01 +#define CPACF_KM_DEA_DEC 0x81 +#define CPACF_KM_TDEA_128_ENC 0x02 +#define CPACF_KM_TDEA_128_DEC 0x82 +#define CPACF_KM_TDEA_192_ENC 0x03 +#define CPACF_KM_TDEA_192_DEC 0x83 +#define CPACF_KM_AES_128_ENC 0x12 +#define CPACF_KM_AES_128_DEC 0x92 +#define CPACF_KM_AES_192_ENC 0x13 +#define CPACF_KM_AES_192_DEC 0x93 +#define CPACF_KM_AES_256_ENC 0x14 +#define CPACF_KM_AES_256_DEC 0x94 +#define CPACF_KM_XTS_128_ENC 0x32 +#define CPACF_KM_XTS_128_DEC 0xb2 +#define CPACF_KM_XTS_256_ENC 0x34 +#define CPACF_KM_XTS_256_DEC 0xb4 + +/* + * Function codes for the KMC (CIPHER MESSAGE WITH CHAINING) + * instruction (0x80 is the decipher modifier bit) + */ +#define CPACF_KMC_QUERY 0x00 +#define CPACF_KMC_DEA_ENC 0x01 +#define CPACF_KMC_DEA_DEC 0x81 +#define CPACF_KMC_TDEA_128_ENC 0x02 +#define CPACF_KMC_TDEA_128_DEC 0x82 +#define CPACF_KMC_TDEA_192_ENC 0x03 +#define CPACF_KMC_TDEA_192_DEC 0x83 +#define CPACF_KMC_AES_128_ENC 0x12 +#define CPACF_KMC_AES_128_DEC 0x92 +#define CPACF_KMC_AES_192_ENC 0x13 +#define CPACF_KMC_AES_192_DEC 0x93 +#define CPACF_KMC_AES_256_ENC 0x14 +#define CPACF_KMC_AES_256_DEC 0x94 +#define CPACF_KMC_PRNG 0x43 + +/* + * Function codes for the KMCTR (CIPHER MESSAGE WITH COUNTER) + * instruction (0x80 is the decipher modifier bit) + */ +#define CPACF_KMCTR_QUERY 0x00 +#define CPACF_KMCTR_DEA_ENC 0x01 +#define CPACF_KMCTR_DEA_DEC 0x81 +#define CPACF_KMCTR_TDEA_128_ENC 0x02 +#define CPACF_KMCTR_TDEA_128_DEC 0x82 +#define CPACF_KMCTR_TDEA_192_ENC 0x03 +#define CPACF_KMCTR_TDEA_192_DEC 0x83 +#define CPACF_KMCTR_AES_128_ENC 0x12 +#define CPACF_KMCTR_AES_128_DEC 0x92 +#define CPACF_KMCTR_AES_192_ENC 0x13 +#define CPACF_KMCTR_AES_192_DEC 0x93 +#define CPACF_KMCTR_AES_256_ENC 0x14 +#define CPACF_KMCTR_AES_256_DEC 0x94 + +/* + * Function codes for the KIMD (COMPUTE INTERMEDIATE MESSAGE DIGEST) + * instruction (0x80 is the decipher modifier bit) + */ +#define CPACF_KIMD_QUERY 0x00 +#define CPACF_KIMD_SHA_1 0x01 +#define CPACF_KIMD_SHA_256 0x02 +#define CPACF_KIMD_SHA_512 0x03 +#define CPACF_KIMD_GHASH 0x41 + +/* + * Function codes for the KLMD (COMPUTE LAST MESSAGE DIGEST) + * instruction (0x80 is the decipher modifier bit) + */ +#define CPACF_KLMD_QUERY 0x00 +#define CPACF_KLMD_SHA_1 0x01 +#define CPACF_KLMD_SHA_256 0x02 +#define CPACF_KLMD_SHA_512 0x03 + +/* + * function codes for the KMAC (COMPUTE MESSAGE AUTHENTICATION CODE) + * instruction (0x80 is the decipher modifier bit) + */ +#define CPACF_KMAC_QUERY 0x00 +#define CPACF_KMAC_DEA 0x01 +#define CPACF_KMAC_TDEA_128 0x02 +#define CPACF_KMAC_TDEA_192 0x03 + +/* + * Function codes for the PPNO (PERFORM PSEUDORANDOM NUMBER OPERATION) + * instruction (0x80 is the decipher modifier bit) + */ +#define CPACF_PPNO_QUERY 0x00 +#define CPACF_PPNO_SHA512_DRNG_GEN 0x03 +#define CPACF_PPNO_SHA512_DRNG_SEED 0x83 + +/** + * cpacf_query() - check if a specific CPACF function is available + * @opcode: the opcode of the crypto instruction + * @func: the function code to test for + * + * Executes the query function for the given crypto instruction @opcode + * and checks if @func is available + * + * Returns 1 if @func is available for @opcode, 0 otherwise + */ +static inline void __cpacf_query(unsigned int opcode, unsigned char *status) +{ + typedef struct { unsigned char _[16]; } status_type; + register unsigned long r0 asm("0") = 0; /* query function */ + register unsigned long r1 asm("1") = (unsigned long) status; + + asm volatile( + /* Parameter registers are ignored, but may not be 0 */ + "0: .insn rrf,%[opc] << 16,2,2,2,0\n" + " brc 1,0b\n" /* handle partial completion */ + : "=m" (*(status_type *) status) + : [fc] "d" (r0), [pba] "a" (r1), [opc] "i" (opcode) + : "cc"); +} + +static inline int cpacf_query(unsigned int opcode, unsigned int func) +{ + unsigned char status[16]; + + switch (opcode) { + case CPACF_KMAC: + case CPACF_KM: + case CPACF_KMC: + case CPACF_KIMD: + case CPACF_KLMD: + if (!test_facility(17)) /* check for MSA */ + return 0; + break; + case CPACF_PCC: + case CPACF_KMCTR: + if (!test_facility(77)) /* check for MSA4 */ + return 0; + break; + case CPACF_PPNO: + if (!test_facility(57)) /* check for MSA5 */ + return 0; + break; + default: + BUG(); + } + __cpacf_query(opcode, status); + return (status[func >> 3] & (0x80 >> (func & 7))) != 0; +} + +/** + * cpacf_km() - executes the KM (CIPHER MESSAGE) instruction + * @func: the function code passed to KM; see CPACF_KM_xxx defines + * @param: address of parameter block; see POP for details on each func + * @dest: address of destination memory area + * @src: address of source memory area + * @src_len: length of src operand in bytes + * + * Returns 0 for the query func, number of processed bytes for + * encryption/decryption funcs + */ +static inline int cpacf_km(long func, void *param, + u8 *dest, const u8 *src, long src_len) +{ + register unsigned long r0 asm("0") = (unsigned long) func; + register unsigned long r1 asm("1") = (unsigned long) param; + register unsigned long r2 asm("2") = (unsigned long) src; + register unsigned long r3 asm("3") = (unsigned long) src_len; + register unsigned long r4 asm("4") = (unsigned long) dest; + + asm volatile( + "0: .insn rre,%[opc] << 16,%[dst],%[src]\n" + " brc 1,0b\n" /* handle partial completion */ + : [src] "+a" (r2), [len] "+d" (r3), [dst] "+a" (r4) + : [fc] "d" (r0), [pba] "a" (r1), [opc] "i" (CPACF_KM) + : "cc", "memory"); + + return src_len - r3; +} + +/** + * cpacf_kmc() - executes the KMC (CIPHER MESSAGE WITH CHAINING) instruction + * @func: the function code passed to KM; see CPACF_KMC_xxx defines + * @param: address of parameter block; see POP for details on each func + * @dest: address of destination memory area + * @src: address of source memory area + * @src_len: length of src operand in bytes + * + * Returns 0 for the query func, number of processed bytes for + * encryption/decryption funcs + */ +static inline int cpacf_kmc(long func, void *param, + u8 *dest, const u8 *src, long src_len) +{ + register unsigned long r0 asm("0") = (unsigned long) func; + register unsigned long r1 asm("1") = (unsigned long) param; + register unsigned long r2 asm("2") = (unsigned long) src; + register unsigned long r3 asm("3") = (unsigned long) src_len; + register unsigned long r4 asm("4") = (unsigned long) dest; + + asm volatile( + "0: .insn rre,%[opc] << 16,%[dst],%[src]\n" + " brc 1,0b\n" /* handle partial completion */ + : [src] "+a" (r2), [len] "+d" (r3), [dst] "+a" (r4) + : [fc] "d" (r0), [pba] "a" (r1), [opc] "i" (CPACF_KMC) + : "cc", "memory"); + + return src_len - r3; +} + +/** + * cpacf_kimd() - executes the KIMD (COMPUTE INTERMEDIATE MESSAGE DIGEST) + * instruction + * @func: the function code passed to KM; see CPACF_KIMD_xxx defines + * @param: address of parameter block; see POP for details on each func + * @src: address of source memory area + * @src_len: length of src operand in bytes + * + * Returns 0 for the query func, number of processed bytes for digest funcs + */ +static inline int cpacf_kimd(long func, void *param, + const u8 *src, long src_len) +{ + register unsigned long r0 asm("0") = (unsigned long) func; + register unsigned long r1 asm("1") = (unsigned long) param; + register unsigned long r2 asm("2") = (unsigned long) src; + register unsigned long r3 asm("3") = (unsigned long) src_len; + + asm volatile( + "0: .insn rre,%[opc] << 16,0,%[src]\n" + " brc 1,0b\n" /* handle partial completion */ + : [src] "+a" (r2), [len] "+d" (r3) + : [fc] "d" (r0), [pba] "a" (r1), [opc] "i" (CPACF_KIMD) + : "cc", "memory"); + + return src_len - r3; +} + +/** + * cpacf_klmd() - executes the KLMD (COMPUTE LAST MESSAGE DIGEST) instruction + * @func: the function code passed to KM; see CPACF_KLMD_xxx defines + * @param: address of parameter block; see POP for details on each func + * @src: address of source memory area + * @src_len: length of src operand in bytes + * + * Returns 0 for the query func, number of processed bytes for digest funcs + */ +static inline int cpacf_klmd(long func, void *param, + const u8 *src, long src_len) +{ + register unsigned long r0 asm("0") = (unsigned long) func; + register unsigned long r1 asm("1") = (unsigned long) param; + register unsigned long r2 asm("2") = (unsigned long) src; + register unsigned long r3 asm("3") = (unsigned long) src_len; + + asm volatile( + "0: .insn rre,%[opc] << 16,0,%[src]\n" + " brc 1,0b\n" /* handle partial completion */ + : [src] "+a" (r2), [len] "+d" (r3) + : [fc] "d" (r0), [pba] "a" (r1), [opc] "i" (CPACF_KLMD) + : "cc", "memory"); + + return src_len - r3; +} + +/** + * cpacf_kmac() - executes the KMAC (COMPUTE MESSAGE AUTHENTICATION CODE) + * instruction + * @func: the function code passed to KM; see CPACF_KMAC_xxx defines + * @param: address of parameter block; see POP for details on each func + * @src: address of source memory area + * @src_len: length of src operand in bytes + * + * Returns 0 for the query func, number of processed bytes for digest funcs + */ +static inline int cpacf_kmac(long func, void *param, + const u8 *src, long src_len) +{ + register unsigned long r0 asm("0") = (unsigned long) func; + register unsigned long r1 asm("1") = (unsigned long) param; + register unsigned long r2 asm("2") = (unsigned long) src; + register unsigned long r3 asm("3") = (unsigned long) src_len; + + asm volatile( + "0: .insn rre,%[opc] << 16,0,%[src]\n" + " brc 1,0b\n" /* handle partial completion */ + : [src] "+a" (r2), [len] "+d" (r3) + : [fc] "d" (r0), [pba] "a" (r1), [opc] "i" (CPACF_KMAC) + : "cc", "memory"); + + return src_len - r3; +} + +/** + * cpacf_kmctr() - executes the KMCTR (CIPHER MESSAGE WITH COUNTER) instruction + * @func: the function code passed to KMCTR; see CPACF_KMCTR_xxx defines + * @param: address of parameter block; see POP for details on each func + * @dest: address of destination memory area + * @src: address of source memory area + * @src_len: length of src operand in bytes + * @counter: address of counter value + * + * Returns 0 for the query func, number of processed bytes for + * encryption/decryption funcs + */ +static inline int cpacf_kmctr(long func, void *param, u8 *dest, + const u8 *src, long src_len, u8 *counter) +{ + register unsigned long r0 asm("0") = (unsigned long) func; + register unsigned long r1 asm("1") = (unsigned long) param; + register unsigned long r2 asm("2") = (unsigned long) src; + register unsigned long r3 asm("3") = (unsigned long) src_len; + register unsigned long r4 asm("4") = (unsigned long) dest; + register unsigned long r6 asm("6") = (unsigned long) counter; + + asm volatile( + "0: .insn rrf,%[opc] << 16,%[dst],%[src],%[ctr],0\n" + " brc 1,0b\n" /* handle partial completion */ + : [src] "+a" (r2), [len] "+d" (r3), + [dst] "+a" (r4), [ctr] "+a" (r6) + : [fc] "d" (r0), [pba] "a" (r1), [opc] "i" (CPACF_KMCTR) + : "cc", "memory"); + + return src_len - r3; +} + +/** + * cpacf_ppno() - executes the PPNO (PERFORM PSEUDORANDOM NUMBER OPERATION) + * instruction + * @func: the function code passed to PPNO; see CPACF_PPNO_xxx defines + * @param: address of parameter block; see POP for details on each func + * @dest: address of destination memory area + * @dest_len: size of destination memory area in bytes + * @seed: address of seed data + * @seed_len: size of seed data in bytes + * + * Returns 0 for the query func, number of random bytes stored in + * dest buffer for generate function + */ +static inline int cpacf_ppno(long func, void *param, + u8 *dest, long dest_len, + const u8 *seed, long seed_len) +{ + register unsigned long r0 asm("0") = (unsigned long) func; + register unsigned long r1 asm("1") = (unsigned long) param; + register unsigned long r2 asm("2") = (unsigned long) dest; + register unsigned long r3 asm("3") = (unsigned long) dest_len; + register unsigned long r4 asm("4") = (unsigned long) seed; + register unsigned long r5 asm("5") = (unsigned long) seed_len; + + asm volatile ( + "0: .insn rre,%[opc] << 16,%[dst],%[seed]\n" + " brc 1,0b\n" /* handle partial completion */ + : [dst] "+a" (r2), [dlen] "+d" (r3) + : [fc] "d" (r0), [pba] "a" (r1), + [seed] "a" (r4), [slen] "d" (r5), [opc] "i" (CPACF_PPNO) + : "cc", "memory"); + + return dest_len - r3; +} + +/** + * cpacf_pcc() - executes the PCC (PERFORM CRYPTOGRAPHIC COMPUTATION) + * instruction + * @func: the function code passed to PCC; see CPACF_KM_xxx defines + * @param: address of parameter block; see POP for details on each func + * + * Returns 0. + */ +static inline int cpacf_pcc(long func, void *param) +{ + register unsigned long r0 asm("0") = (unsigned long) func; + register unsigned long r1 asm("1") = (unsigned long) param; + + asm volatile( + "0: .insn rre,%[opc] << 16,0,0\n" /* PCC opcode */ + " brc 1,0b\n" /* handle partial completion */ + : + : [fc] "d" (r0), [pba] "a" (r1), [opc] "i" (CPACF_PCC) + : "cc", "memory"); + + return 0; +} + +#endif /* _ASM_S390_CPACF_H */ diff --git a/arch/s390/include/asm/fpu/types.h b/arch/s390/include/asm/fpu/types.h index 14a8b0c..fe937c9 100644 --- a/arch/s390/include/asm/fpu/types.h +++ b/arch/s390/include/asm/fpu/types.h @@ -11,11 +11,13 @@ #include <asm/sigcontext.h> struct fpu { - __u32 fpc; /* Floating-point control */ + __u32 fpc; /* Floating-point control */ + void *regs; /* Pointer to the current save area */ union { - void *regs; - freg_t *fprs; /* Floating-point register save area */ - __vector128 *vxrs; /* Vector register save area */ + /* Floating-point register save area */ + freg_t fprs[__NUM_FPRS]; + /* Vector register save area */ + __vector128 vxrs[__NUM_VXRS]; }; }; diff --git a/arch/s390/include/asm/ftrace.h b/arch/s390/include/asm/ftrace.h index 836c562..64053d9 100644 --- a/arch/s390/include/asm/ftrace.h +++ b/arch/s390/include/asm/ftrace.h @@ -12,7 +12,9 @@ #ifndef __ASSEMBLY__ -#define ftrace_return_address(n) __builtin_return_address(n) +unsigned long return_address(int depth); + +#define ftrace_return_address(n) return_address(n) void _mcount(void); void ftrace_caller(void); diff --git a/arch/s390/include/asm/pci.h b/arch/s390/include/asm/pci.h index 535a46d..0da91c4 100644 --- a/arch/s390/include/asm/pci.h +++ b/arch/s390/include/asm/pci.h @@ -31,20 +31,41 @@ int pci_proc_domain(struct pci_bus *); #define ZPCI_FC_BLOCKED 0x20 #define ZPCI_FC_DMA_ENABLED 0x10 +#define ZPCI_FMB_DMA_COUNTER_VALID (1 << 23) + +struct zpci_fmb_fmt0 { + u64 dma_rbytes; + u64 dma_wbytes; +}; + +struct zpci_fmb_fmt1 { + u64 rx_bytes; + u64 rx_packets; + u64 tx_bytes; + u64 tx_packets; +}; + +struct zpci_fmb_fmt2 { + u64 consumed_work_units; + u64 max_work_units; +}; + struct zpci_fmb { - u32 format : 8; - u32 dma_valid : 1; - u32 : 23; + u32 format : 8; + u32 fmt_ind : 24; u32 samples; u64 last_update; - /* hardware counters */ + /* common counters */ u64 ld_ops; u64 st_ops; u64 stb_ops; u64 rpcit_ops; - u64 dma_rbytes; - u64 dma_wbytes; - u64 pad[2]; + /* format specific counters */ + union { + struct zpci_fmb_fmt0 fmt0; + struct zpci_fmb_fmt1 fmt1; + struct zpci_fmb_fmt2 fmt2; + }; } __packed __aligned(128); enum zpci_state { diff --git a/arch/s390/include/asm/processor.h b/arch/s390/include/asm/processor.h index 18cdede..9d4d311 100644 --- a/arch/s390/include/asm/processor.h +++ b/arch/s390/include/asm/processor.h @@ -105,7 +105,6 @@ typedef struct { * Thread structure */ struct thread_struct { - struct fpu fpu; /* FP and VX register save area */ unsigned int acrs[NUM_ACRS]; unsigned long ksp; /* kernel stack pointer */ mm_segment_t mm_segment; @@ -120,6 +119,11 @@ struct thread_struct { /* cpu runtime instrumentation */ struct runtime_instr_cb *ri_cb; unsigned char trap_tdb[256]; /* Transaction abort diagnose block */ + /* + * Warning: 'fpu' is dynamically-sized. It *MUST* be at + * the end. + */ + struct fpu fpu; /* FP and VX register save area */ }; /* Flag to disable transactions. */ @@ -155,10 +159,9 @@ struct stack_frame { #define ARCH_MIN_TASKALIGN 8 -extern __vector128 init_task_fpu_regs[__NUM_VXRS]; #define INIT_THREAD { \ .ksp = sizeof(init_stack) + (unsigned long) &init_stack, \ - .fpu.regs = (void *)&init_task_fpu_regs, \ + .fpu.regs = (void *) init_task.thread.fpu.fprs, \ } /* diff --git a/arch/s390/include/asm/sclp.h b/arch/s390/include/asm/sclp.h index bab456b..bd7893d 100644 --- a/arch/s390/include/asm/sclp.h +++ b/arch/s390/include/asm/sclp.h @@ -72,6 +72,18 @@ struct sclp_info { }; extern struct sclp_info sclp; +struct zpci_report_error_header { + u8 version; /* Interface version byte */ + u8 action; /* Action qualifier byte + * 1: Deconfigure and repair action requested + * (OpenCrypto Problem Call Home) + * 2: Informational Report + * (OpenCrypto Successful Diagnostics Execution) + */ + u16 length; /* Length of Subsequent Data (up to 4K – SCLP header */ + u8 data[0]; /* Subsequent Data passed verbatim to SCLP ET 24 */ +} __packed; + int sclp_get_core_info(struct sclp_core_info *info); int sclp_core_configure(u8 core); int sclp_core_deconfigure(u8 core); @@ -83,6 +95,7 @@ int sclp_chp_read_info(struct sclp_chp_info *info); void sclp_get_ipl_info(struct sclp_ipl_info *info); int sclp_pci_configure(u32 fid); int sclp_pci_deconfigure(u32 fid); +int sclp_pci_report(struct zpci_report_error_header *report, u32 fh, u32 fid); int memcpy_hsa_kernel(void *dest, unsigned long src, size_t count); int memcpy_hsa_user(void __user *dest, unsigned long src, size_t count); void sclp_early_detect(void); diff --git a/arch/s390/include/asm/thread_info.h b/arch/s390/include/asm/thread_info.h index 2fffc2c..f15c039 100644 --- a/arch/s390/include/asm/thread_info.h +++ b/arch/s390/include/asm/thread_info.h @@ -62,6 +62,7 @@ static inline struct thread_info *current_thread_info(void) } void arch_release_task_struct(struct task_struct *tsk); +int arch_dup_task_struct(struct task_struct *dst, struct task_struct *src); #define THREAD_SIZE_ORDER THREAD_ORDER diff --git a/arch/s390/include/uapi/asm/dasd.h b/arch/s390/include/uapi/asm/dasd.h index 5812a3b..1340311 100644 --- a/arch/s390/include/uapi/asm/dasd.h +++ b/arch/s390/include/uapi/asm/dasd.h @@ -187,6 +187,36 @@ typedef struct format_data_t { #define DASD_FMT_INT_INVAL 4 /* invalidate tracks */ #define DASD_FMT_INT_COMPAT 8 /* use OS/390 compatible disk layout */ +/* + * struct format_check_t + * represents all data necessary to evaluate the format of + * different tracks of a dasd + */ +typedef struct format_check_t { + /* Input */ + struct format_data_t expect; + + /* Output */ + unsigned int result; /* Error indication (DASD_FMT_ERR_*) */ + unsigned int unit; /* Track that is in error */ + unsigned int rec; /* Record that is in error */ + unsigned int num_records; /* Records in the track in error */ + unsigned int blksize; /* Blocksize of first record in error */ + unsigned int key_length; /* Key length of first record in error */ +} format_check_t; + +/* Values returned in format_check_t when a format error is detected: */ +/* Too few records were found on a single track */ +#define DASD_FMT_ERR_TOO_FEW_RECORDS 1 +/* Too many records were found on a single track */ +#define DASD_FMT_ERR_TOO_MANY_RECORDS 2 +/* Blocksize/data-length of a record was wrong */ +#define DASD_FMT_ERR_BLKSIZE 3 +/* A record ID is defined by cylinder, head, and record number (CHR). */ +/* On mismatch, this error is set */ +#define DASD_FMT_ERR_RECORD_ID 4 +/* If key-length was != 0 */ +#define DASD_FMT_ERR_KEY_LENGTH 5 /* * struct attrib_data_t @@ -288,6 +318,8 @@ struct dasd_snid_ioctl_data { /* Get Sense Path Group ID (SNID) data */ #define BIODASDSNID _IOWR(DASD_IOCTL_LETTER, 1, struct dasd_snid_ioctl_data) +/* Check device format according to format_check_t */ +#define BIODASDCHECKFMT _IOWR(DASD_IOCTL_LETTER, 2, format_check_t) #define BIODASDSYMMIO _IOWR(DASD_IOCTL_LETTER, 240, dasd_symmio_parms_t) |