diff options
80 files changed, 5313 insertions, 774 deletions
diff --git a/arch/s390/Kbuild b/arch/s390/Kbuild index cc45d25487b0..647c3eccc3d0 100644 --- a/arch/s390/Kbuild +++ b/arch/s390/Kbuild @@ -6,3 +6,4 @@ obj-$(CONFIG_S390_HYPFS_FS) += hypfs/ obj-$(CONFIG_APPLDATA_BASE) += appldata/ obj-$(CONFIG_MATHEMU) += math-emu/ obj-y += net/ +obj-$(CONFIG_PCI) += pci/ diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig index 3cbb8757704e..32425af9d68d 100644 --- a/arch/s390/Kconfig +++ b/arch/s390/Kconfig @@ -34,12 +34,6 @@ config GENERIC_BUG config GENERIC_BUG_RELATIVE_POINTERS def_bool y -config NO_IOMEM - def_bool y - -config NO_DMA - def_bool y - config ARCH_DMA_ADDR_T_64BIT def_bool 64BIT @@ -58,6 +52,12 @@ config KEXEC config AUDIT_ARCH def_bool y +config NO_IOPORT + def_bool y + +config PCI_QUIRKS + def_bool n + config S390 def_bool y select USE_GENERIC_SMP_HELPERS if SMP @@ -171,6 +171,10 @@ config HAVE_MARCH_Z196_FEATURES def_bool n select HAVE_MARCH_Z10_FEATURES +config HAVE_MARCH_ZEC12_FEATURES + def_bool n + select HAVE_MARCH_Z196_FEATURES + choice prompt "Processor type" default MARCH_G5 @@ -222,6 +226,13 @@ config MARCH_Z196 (2818 and 2817 series). The kernel will be slightly faster but will not work on older machines. +config MARCH_ZEC12 + bool "IBM zEC12" + select HAVE_MARCH_ZEC12_FEATURES if 64BIT + help + Select this to enable optimizations for IBM zEC12 (2827 series). The + kernel will be slightly faster but will not work on older machines. + endchoice config 64BIT @@ -426,6 +437,53 @@ config QDIO If unsure, say Y. +menuconfig PCI + bool "PCI support" + default n + depends on 64BIT + select ARCH_SUPPORTS_MSI + select PCI_MSI + help + Enable PCI support. + +if PCI + +config PCI_NR_FUNCTIONS + int "Maximum number of PCI functions (1-4096)" + range 1 4096 + default "64" + help + This allows you to specify the maximum number of PCI functions which + this kernel will support. + +source "drivers/pci/Kconfig" +source "drivers/pci/pcie/Kconfig" +source "drivers/pci/hotplug/Kconfig" + +endif # PCI + +config PCI_DOMAINS + def_bool PCI + +config HAS_IOMEM + def_bool PCI + +config IOMMU_HELPER + def_bool PCI + +config HAS_DMA + def_bool PCI + select HAVE_DMA_API_DEBUG + +config NEED_SG_DMA_LENGTH + def_bool PCI + +config HAVE_DMA_ATTRS + def_bool PCI + +config NEED_DMA_MAP_STATE + def_bool PCI + config CHSC_SCH def_tristate m prompt "Support for CHSC subchannels" diff --git a/arch/s390/Makefile b/arch/s390/Makefile index 49e76e8b477d..4b8e08b56f49 100644 --- a/arch/s390/Makefile +++ b/arch/s390/Makefile @@ -41,6 +41,7 @@ cflags-$(CONFIG_MARCH_Z990) += $(call cc-option,-march=z990) cflags-$(CONFIG_MARCH_Z9_109) += $(call cc-option,-march=z9-109) cflags-$(CONFIG_MARCH_Z10) += $(call cc-option,-march=z10) cflags-$(CONFIG_MARCH_Z196) += $(call cc-option,-march=z196) +cflags-$(CONFIG_MARCH_ZEC12) += $(call cc-option,-march=zEC12) #KBUILD_IMAGE is necessary for make rpm KBUILD_IMAGE :=arch/s390/boot/image diff --git a/arch/s390/crypto/aes_s390.c b/arch/s390/crypto/aes_s390.c index da3c1a7dcd8e..b4dbade8ca24 100644 --- a/arch/s390/crypto/aes_s390.c +++ b/arch/s390/crypto/aes_s390.c @@ -325,7 +325,8 @@ static int ecb_aes_crypt(struct blkcipher_desc *desc, long func, void *param, u8 *in = walk->src.virt.addr; ret = crypt_s390_km(func, param, out, in, n); - BUG_ON((ret < 0) || (ret != n)); + if (ret < 0 || ret != n) + return -EIO; nbytes &= AES_BLOCK_SIZE - 1; ret = blkcipher_walk_done(desc, walk, nbytes); @@ -457,7 +458,8 @@ static int cbc_aes_crypt(struct blkcipher_desc *desc, long func, void *param, u8 *in = walk->src.virt.addr; ret = crypt_s390_kmc(func, param, out, in, n); - BUG_ON((ret < 0) || (ret != n)); + if (ret < 0 || ret != n) + return -EIO; nbytes &= AES_BLOCK_SIZE - 1; ret = blkcipher_walk_done(desc, walk, nbytes); @@ -625,7 +627,8 @@ static int xts_aes_crypt(struct blkcipher_desc *desc, long func, memcpy(xts_ctx->pcc.tweak, walk->iv, sizeof(xts_ctx->pcc.tweak)); param = xts_ctx->pcc.key + offset; ret = crypt_s390_pcc(func, param); - BUG_ON(ret < 0); + if (ret < 0) + return -EIO; memcpy(xts_ctx->xts_param, xts_ctx->pcc.xts, 16); param = xts_ctx->key + offset; @@ -636,7 +639,8 @@ static int xts_aes_crypt(struct blkcipher_desc *desc, long func, in = walk->src.virt.addr; ret = crypt_s390_km(func, param, out, in, n); - BUG_ON(ret < 0 || ret != n); + if (ret < 0 || ret != n) + return -EIO; nbytes &= AES_BLOCK_SIZE - 1; ret = blkcipher_walk_done(desc, walk, nbytes); @@ -769,7 +773,8 @@ static int ctr_aes_crypt(struct blkcipher_desc *desc, long func, crypto_inc(ctrblk + i, AES_BLOCK_SIZE); } ret = crypt_s390_kmctr(func, sctx->key, out, in, n, ctrblk); - BUG_ON(ret < 0 || ret != n); + if (ret < 0 || ret != n) + return -EIO; if (n > AES_BLOCK_SIZE) memcpy(ctrblk, ctrblk + n - AES_BLOCK_SIZE, AES_BLOCK_SIZE); @@ -788,7 +793,8 @@ static int ctr_aes_crypt(struct blkcipher_desc *desc, long func, in = walk->src.virt.addr; ret = crypt_s390_kmctr(func, sctx->key, buf, in, AES_BLOCK_SIZE, ctrblk); - BUG_ON(ret < 0 || ret != AES_BLOCK_SIZE); + if (ret < 0 || ret != AES_BLOCK_SIZE) + return -EIO; memcpy(out, buf, nbytes); crypto_inc(ctrblk, AES_BLOCK_SIZE); ret = blkcipher_walk_done(desc, walk, 0); diff --git a/arch/s390/crypto/des_s390.c b/arch/s390/crypto/des_s390.c index b49fb96f4207..bcca01c9989d 100644 --- a/arch/s390/crypto/des_s390.c +++ b/arch/s390/crypto/des_s390.c @@ -94,7 +94,8 @@ static int ecb_desall_crypt(struct blkcipher_desc *desc, long func, u8 *in = walk->src.virt.addr; ret = crypt_s390_km(func, key, out, in, n); - BUG_ON((ret < 0) || (ret != n)); + if (ret < 0 || ret != n) + return -EIO; nbytes &= DES_BLOCK_SIZE - 1; ret = blkcipher_walk_done(desc, walk, nbytes); @@ -120,7 +121,8 @@ static int cbc_desall_crypt(struct blkcipher_desc *desc, long func, u8 *in = walk->src.virt.addr; ret = crypt_s390_kmc(func, iv, out, in, n); - BUG_ON((ret < 0) || (ret != n)); + if (ret < 0 || ret != n) + return -EIO; nbytes &= DES_BLOCK_SIZE - 1; ret = blkcipher_walk_done(desc, walk, nbytes); @@ -386,7 +388,8 @@ static int ctr_desall_crypt(struct blkcipher_desc *desc, long func, crypto_inc(ctrblk + i, DES_BLOCK_SIZE); } ret = crypt_s390_kmctr(func, ctx->key, out, in, n, ctrblk); - BUG_ON((ret < 0) || (ret != n)); + if (ret < 0 || ret != n) + return -EIO; if (n > DES_BLOCK_SIZE) memcpy(ctrblk, ctrblk + n - DES_BLOCK_SIZE, DES_BLOCK_SIZE); @@ -404,7 +407,8 @@ static int ctr_desall_crypt(struct blkcipher_desc *desc, long func, in = walk->src.virt.addr; ret = crypt_s390_kmctr(func, ctx->key, buf, in, DES_BLOCK_SIZE, ctrblk); - BUG_ON(ret < 0 || ret != DES_BLOCK_SIZE); + if (ret < 0 || ret != DES_BLOCK_SIZE) + return -EIO; memcpy(out, buf, nbytes); crypto_inc(ctrblk, DES_BLOCK_SIZE); ret = blkcipher_walk_done(desc, walk, 0); diff --git a/arch/s390/crypto/ghash_s390.c b/arch/s390/crypto/ghash_s390.c index 1ebd3a15cca4..d43485d142e9 100644 --- a/arch/s390/crypto/ghash_s390.c +++ b/arch/s390/crypto/ghash_s390.c @@ -72,14 +72,16 @@ static int ghash_update(struct shash_desc *desc, if (!dctx->bytes) { ret = crypt_s390_kimd(KIMD_GHASH, ctx, buf, GHASH_BLOCK_SIZE); - BUG_ON(ret != GHASH_BLOCK_SIZE); + if (ret != GHASH_BLOCK_SIZE) + return -EIO; } } n = srclen & ~(GHASH_BLOCK_SIZE - 1); if (n) { ret = crypt_s390_kimd(KIMD_GHASH, ctx, src, n); - BUG_ON(ret != n); + if (ret != n) + return -EIO; src += n; srclen -= n; } @@ -92,7 +94,7 @@ static int ghash_update(struct shash_desc *desc, return 0; } -static void ghash_flush(struct ghash_ctx *ctx, struct ghash_desc_ctx *dctx) +static int ghash_flush(struct ghash_ctx *ctx, struct ghash_desc_ctx *dctx) { u8 *buf = dctx->buffer; int ret; @@ -103,21 +105,24 @@ static void ghash_flush(struct ghash_ctx *ctx, struct ghash_desc_ctx *dctx) memset(pos, 0, dctx->bytes); ret = crypt_s390_kimd(KIMD_GHASH, ctx, buf, GHASH_BLOCK_SIZE); - BUG_ON(ret != GHASH_BLOCK_SIZE); + if (ret != GHASH_BLOCK_SIZE) + return -EIO; } dctx->bytes = 0; + return 0; } static int ghash_final(struct shash_desc *desc, u8 *dst) { struct ghash_desc_ctx *dctx = shash_desc_ctx(desc); struct ghash_ctx *ctx = crypto_shash_ctx(desc->tfm); + int ret; - ghash_flush(ctx, dctx); - memcpy(dst, ctx->icv, GHASH_BLOCK_SIZE); - - return 0; + ret = ghash_flush(ctx, dctx); + if (!ret) + memcpy(dst, ctx->icv, GHASH_BLOCK_SIZE); + return ret; } static struct shash_alg ghash_alg = { diff --git a/arch/s390/crypto/sha_common.c b/arch/s390/crypto/sha_common.c index bd37d09b9d3c..8620b0ec9c42 100644 --- a/arch/s390/crypto/sha_common.c +++ b/arch/s390/crypto/sha_common.c @@ -36,7 +36,8 @@ int s390_sha_update(struct shash_desc *desc, const u8 *data, unsigned int len) if (index) { memcpy(ctx->buf + index, data, bsize - index); ret = crypt_s390_kimd(ctx->func, ctx->state, ctx->buf, bsize); - BUG_ON(ret != bsize); + if (ret != bsize) + return -EIO; data += bsize - index; len -= bsize - index; index = 0; @@ -46,7 +47,8 @@ int s390_sha_update(struct shash_desc *desc, const u8 *data, unsigned int len) if (len >= bsize) { ret = crypt_s390_kimd(ctx->func, ctx->state, data, len & ~(bsize - 1)); - BUG_ON(ret != (len & ~(bsize - 1))); + if (ret != (len & ~(bsize - 1))) + return -EIO; data += ret; len -= ret; } @@ -88,7 +90,8 @@ int s390_sha_final(struct shash_desc *desc, u8 *out) memcpy(ctx->buf + end - 8, &bits, sizeof(bits)); ret = crypt_s390_kimd(ctx->func, ctx->state, ctx->buf, end); - BUG_ON(ret != end); + if (ret != end) + return -EIO; /* copy digest to out */ memcpy(out, ctx->state, crypto_shash_digestsize(desc->tfm)); diff --git a/arch/s390/include/asm/bitops.h b/arch/s390/include/asm/bitops.h index 6f573890fb28..15422933c60b 100644 --- a/arch/s390/include/asm/bitops.h +++ b/arch/s390/include/asm/bitops.h @@ -640,6 +640,87 @@ static inline unsigned long find_first_bit(const unsigned long * addr, } #define find_first_bit find_first_bit +/* + * Big endian variant whichs starts bit counting from left using + * the flogr (find leftmost one) instruction. + */ +static inline unsigned long __flo_word(unsigned long nr, unsigned long val) +{ + register unsigned long bit asm("2") = val; + register unsigned long out asm("3"); + + asm volatile ( + " .insn rre,0xb9830000,%[bit],%[bit]\n" + : [bit] "+d" (bit), [out] "=d" (out) : : "cc"); + return nr + bit; +} + +/* + * 64 bit special left bitops format: + * order in memory: + * 00 01 02 03 04 05 06 07 08 09 0a 0b 0c 0d 0e 0f + * 10 11 12 13 14 15 16 17 18 19 1a 1b 1c 1d 1e 1f + * 20 21 22 23 24 25 26 27 28 29 2a 2b 2c 2d 2e 2f + * 30 31 32 33 34 35 36 37 38 39 3a 3b 3c 3d 3e 3f + * after that follows the next long with bit numbers + * 40 41 42 43 44 45 46 47 48 49 4a 4b 4c 4d 4e 4f + * 50 51 52 53 54 55 56 57 58 59 5a 5b 5c 5d 5e 5f + * 60 61 62 63 64 65 66 67 68 69 6a 6b 6c 6d 6e 6f + * 70 71 72 73 74 75 76 77 78 79 7a 7b 7c 7d 7e 7f + * The reason for this bit ordering is the fact that + * the hardware sets bits in a bitmap starting at bit 0 + * and we don't want to scan the bitmap from the 'wrong + * end'. + */ +static inline unsigned long find_first_bit_left(const unsigned long *addr, + unsigned long size) +{ + unsigned long bytes, bits; + + if (!size) + return 0; + bytes = __ffs_word_loop(addr, size); + bits = __flo_word(bytes * 8, __load_ulong_be(addr, bytes)); + return (bits < size) ? bits : size; +} + +static inline int find_next_bit_left(const unsigned long *addr, + unsigned long size, + unsigned long offset) +{ + const unsigned long *p; + unsigned long bit, set; + + if (offset >= size) + return size; + bit = offset & (__BITOPS_WORDSIZE - 1); + offset -= bit; + size -= offset; + p = addr + offset / __BITOPS_WORDSIZE; + if (bit) { + set = __flo_word(0, *p & (~0UL << bit)); + if (set >= size) + return size + offset; + if (set < __BITOPS_WORDSIZE) + return set + offset; + offset += __BITOPS_WORDSIZE; + size -= __BITOPS_WORDSIZE; + p++; + } + return offset + find_first_bit_left(p, size); +} + +#define for_each_set_bit_left(bit, addr, size) \ + for ((bit) = find_first_bit_left((addr), (size)); \ + (bit) < (size); \ + (bit) = find_next_bit_left((addr), (size), (bit) + 1)) + +/* same as for_each_set_bit() but use bit as value to start with */ +#define for_each_set_bit_left_cont(bit, addr, size) \ + for ((bit) = find_next_bit_left((addr), (size), (bit)); \ + (bit) < (size); \ + (bit) = find_next_bit_left((addr), (size), (bit) + 1)) + /** * find_next_zero_bit - find the first zero bit in a memory region * @addr: The address to base the search on diff --git a/arch/s390/include/asm/ccwdev.h b/arch/s390/include/asm/ccwdev.h index 1cb4bb3f32d9..6d1f3573f0df 100644 --- a/arch/s390/include/asm/ccwdev.h +++ b/arch/s390/include/asm/ccwdev.h @@ -18,6 +18,9 @@ struct irb; struct ccw1; struct ccw_dev_id; +/* from asm/schid.h */ +struct subchannel_id; + /* simplified initializers for struct ccw_device: * CCW_DEVICE and CCW_DEVICE_DEVTYPE initialize one * entry in your MODULE_DEVICE_TABLE and set the match_flag correctly */ @@ -223,8 +226,7 @@ extern int ccw_device_force_console(void); int ccw_device_siosl(struct ccw_device *); -// FIXME: these have to go -extern int _ccw_device_get_subchannel_number(struct ccw_device *); +extern void ccw_device_get_schid(struct ccw_device *, struct subchannel_id *); extern void *ccw_device_get_chp_desc(struct ccw_device *, int); #endif /* _S390_CCWDEV_H_ */ diff --git a/arch/s390/include/asm/ccwgroup.h b/arch/s390/include/asm/ccwgroup.h index 01a905eb11e0..23723ce5ca7a 100644 --- a/arch/s390/include/asm/ccwgroup.h +++ b/arch/s390/include/asm/ccwgroup.h @@ -59,6 +59,9 @@ extern void ccwgroup_driver_unregister (struct ccwgroup_driver *cdriver); int ccwgroup_create_dev(struct device *root, struct ccwgroup_driver *gdrv, int num_devices, const char *buf); +extern int ccwgroup_set_online(struct ccwgroup_device *gdev); +extern int ccwgroup_set_offline(struct ccwgroup_device *gdev); + extern int ccwgroup_probe_ccwdev(struct ccw_device *cdev); extern void ccwgroup_remove_ccwdev(struct ccw_device *cdev); diff --git a/arch/s390/include/asm/clp.h b/arch/s390/include/asm/clp.h new file mode 100644 index 000000000000..6c3aecc245ff --- /dev/null +++ b/arch/s390/include/asm/clp.h @@ -0,0 +1,28 @@ +#ifndef _ASM_S390_CLP_H +#define _ASM_S390_CLP_H + +/* CLP common request & response block size */ +#define CLP_BLK_SIZE (PAGE_SIZE * 2) + +struct clp_req_hdr { + u16 len; + u16 cmd; +} __packed; + +struct clp_rsp_hdr { + u16 len; + u16 rsp; +} __packed; + +/* CLP Response Codes */ +#define CLP_RC_OK 0x0010 /* Command request successfully */ +#define CLP_RC_CMD 0x0020 /* Command code not recognized */ +#define CLP_RC_PERM 0x0030 /* Command not authorized */ +#define CLP_RC_FMT 0x0040 /* Invalid command request format */ +#define CLP_RC_LEN 0x0050 /* Invalid command request length */ +#define CLP_RC_8K 0x0060 /* Command requires 8K LPCB */ +#define CLP_RC_RESNOT0 0x0070 /* Reserved field not zero */ +#define CLP_RC_NODATA 0x0080 /* No data available */ +#define CLP_RC_FC_UNKNOWN 0x0100 /* Function code not recognized */ + +#endif diff --git a/arch/s390/include/asm/dma-mapping.h b/arch/s390/include/asm/dma-mapping.h new file mode 100644 index 000000000000..8a32f7dfd3af --- /dev/null +++ b/ |