diff options
Diffstat (limited to 'arch/powerpc/platforms/ps3')
| -rw-r--r-- | arch/powerpc/platforms/ps3/device-init.c | 24 | ||||
| -rw-r--r-- | arch/powerpc/platforms/ps3/htab.c | 14 | ||||
| -rw-r--r-- | arch/powerpc/platforms/ps3/interrupt.c | 9 | ||||
| -rw-r--r-- | arch/powerpc/platforms/ps3/os-area.c | 646 | ||||
| -rw-r--r-- | arch/powerpc/platforms/ps3/platform.h | 10 | ||||
| -rw-r--r-- | arch/powerpc/platforms/ps3/setup.c | 3 | ||||
| -rw-r--r-- | arch/powerpc/platforms/ps3/time.c | 14 |
7 files changed, 644 insertions, 76 deletions
diff --git a/arch/powerpc/platforms/ps3/device-init.c b/arch/powerpc/platforms/ps3/device-init.c index ce15cada88d4..fd063fe0c9b3 100644 --- a/arch/powerpc/platforms/ps3/device-init.c +++ b/arch/powerpc/platforms/ps3/device-init.c @@ -297,8 +297,8 @@ static int ps3_storage_wait_for_device(const struct ps3_repository_device *repo) u64 dev_port; } *notify_event; - pr_debug(" -> %s:%u: bus_id %u, dev_id %u, dev_type %u\n", __func__, - __LINE__, repo->bus_id, repo->dev_id, repo->dev_type); + pr_debug(" -> %s:%u: (%u:%u:%u)\n", __func__, __LINE__, repo->bus_id, + repo->dev_id, repo->dev_type); buf = kzalloc(512, GFP_KERNEL); if (!buf) @@ -359,6 +359,11 @@ static int ps3_storage_wait_for_device(const struct ps3_repository_device *repo) break; } + pr_debug("%s:%d: notify event (%u:%u:%u): event_type 0x%lx, " + "port %lu\n", __func__, __LINE__, repo->bus_index, + repo->dev_index, repo->dev_type, + notify_event->event_type, notify_event->dev_port); + if (notify_event->event_type != notify_region_probe || notify_event->bus_id != repo->bus_id) { pr_debug("%s:%u: bad notify_event: event %lu, " @@ -370,8 +375,9 @@ static int ps3_storage_wait_for_device(const struct ps3_repository_device *repo) if (notify_event->dev_id == repo->dev_id && notify_event->dev_type == repo->dev_type) { - pr_debug("%s:%u: device ready: dev_id %u\n", __func__, - __LINE__, repo->dev_id); + pr_debug("%s:%u: device ready (%u:%u:%u)\n", __func__, + __LINE__, repo->bus_index, repo->dev_index, + repo->dev_type); error = 0; break; } @@ -412,9 +418,10 @@ static int ps3_setup_storage_dev(const struct ps3_repository_device *repo, return -ENODEV; } - pr_debug("%s:%u: index %u:%u: port %lu blk_size %lu num_blocks %lu " + pr_debug("%s:%u: (%u:%u:%u): port %lu blk_size %lu num_blocks %lu " "num_regions %u\n", __func__, __LINE__, repo->bus_index, - repo->dev_index, port, blk_size, num_blocks, num_regions); + repo->dev_index, repo->dev_type, port, blk_size, num_blocks, + num_regions); p = kzalloc(sizeof(struct ps3_storage_device) + num_regions * sizeof(struct ps3_storage_region), @@ -681,8 +688,9 @@ static int ps3_probe_thread(void *data) pr_debug("%s:%u: find device error.\n", __func__, __LINE__); else { - pr_debug("%s:%u: found device\n", __func__, - __LINE__); + pr_debug("%s:%u: found device (%u:%u:%u)\n", + __func__, __LINE__, repo->bus_index, + repo->dev_index, repo->dev_type); ps3_register_repository_device(repo); ps3_repository_bump_device(repo); ms = 250; diff --git a/arch/powerpc/platforms/ps3/htab.c b/arch/powerpc/platforms/ps3/htab.c index 5d2e176a1b18..7382f195c4f8 100644 --- a/arch/powerpc/platforms/ps3/htab.c +++ b/arch/powerpc/platforms/ps3/htab.c @@ -60,7 +60,8 @@ static void _debug_dump_hpte(unsigned long pa, unsigned long va, } static long ps3_hpte_insert(unsigned long hpte_group, unsigned long va, - unsigned long pa, unsigned long rflags, unsigned long vflags, int psize) + unsigned long pa, unsigned long rflags, unsigned long vflags, + int psize, int ssize) { unsigned long slot; struct hash_pte lhpte; @@ -72,7 +73,8 @@ static long ps3_hpte_insert(unsigned long hpte_group, unsigned long va, vflags &= ~HPTE_V_SECONDARY; /* this bit is ignored */ - lhpte.v = hpte_encode_v(va, psize) | vflags | HPTE_V_VALID; + lhpte.v = hpte_encode_v(va, psize, MMU_SEGSIZE_256M) | + vflags | HPTE_V_VALID; lhpte.r = hpte_encode_r(ps3_mm_phys_to_lpar(pa), psize) | rflags; p_pteg = hpte_group / HPTES_PER_GROUP; @@ -167,14 +169,14 @@ static long ps3_hpte_remove(unsigned long hpte_group) } static long ps3_hpte_updatepp(unsigned long slot, unsigned long newpp, - unsigned long va, int psize, int local) + unsigned long va, int psize, int ssize, int local) { unsigned long flags; unsigned long result; unsigned long pteg, bit; unsigned long hpte_v, want_v; - want_v = hpte_encode_v(va, psize); + want_v = hpte_encode_v(va, psize, MMU_SEGSIZE_256M); spin_lock_irqsave(&ps3_bolttab_lock, flags); @@ -205,13 +207,13 @@ static long ps3_hpte_updatepp(unsigned long slot, unsigned long newpp, } static void ps3_hpte_updateboltedpp(unsigned long newpp, unsigned long ea, - int psize) + int psize, int ssize) { panic("ps3_hpte_updateboltedpp() not implemented"); } static void ps3_hpte_invalidate(unsigned long slot, unsigned long va, - int psize, int local) + int psize, int ssize, int local) { unsigned long flags; unsigned long result; diff --git a/arch/powerpc/platforms/ps3/interrupt.c b/arch/powerpc/platforms/ps3/interrupt.c index 67e32ec9b37e..3a6db04aa940 100644 --- a/arch/powerpc/platforms/ps3/interrupt.c +++ b/arch/powerpc/platforms/ps3/interrupt.c @@ -673,9 +673,16 @@ static int ps3_host_map(struct irq_host *h, unsigned int virq, return 0; } +static int ps3_host_match(struct irq_host *h, struct device_node *np) +{ + /* Match all */ + return 1; +} + static struct irq_host_ops ps3_host_ops = { .map = ps3_host_map, .unmap = ps3_host_unmap, + .match = ps3_host_match, }; void __init ps3_register_ipi_debug_brk(unsigned int cpu, unsigned int virq) @@ -726,7 +733,7 @@ void __init ps3_init_IRQ(void) unsigned cpu; struct irq_host *host; - host = irq_alloc_host(IRQ_HOST_MAP_NOMAP, 0, &ps3_host_ops, + host = irq_alloc_host(NULL, IRQ_HOST_MAP_NOMAP, 0, &ps3_host_ops, PS3_INVALID_OUTLET); irq_set_default_host(host); irq_set_virq_count(PS3_PLUG_MAX + 1); diff --git a/arch/powerpc/platforms/ps3/os-area.c b/arch/powerpc/platforms/ps3/os-area.c index b70e474014f0..766685ab26f8 100644 --- a/arch/powerpc/platforms/ps3/os-area.c +++ b/arch/powerpc/platforms/ps3/os-area.c @@ -1,5 +1,5 @@ /* - * PS3 'Other OS' area data. + * PS3 flash memory os area. * * Copyright (C) 2006 Sony Computer Entertainment Inc. * Copyright 2006 Sony Corp. @@ -20,6 +20,9 @@ #include <linux/kernel.h> #include <linux/io.h> +#include <linux/workqueue.h> +#include <linux/fs.h> +#include <linux/syscalls.h> #include <asm/lmb.h> @@ -29,7 +32,7 @@ enum { OS_AREA_SEGMENT_SIZE = 0X200, }; -enum { +enum os_area_ldr_format { HEADER_LDR_FORMAT_RAW = 0, HEADER_LDR_FORMAT_GZIP = 1, }; @@ -38,7 +41,7 @@ enum { * struct os_area_header - os area header segment. * @magic_num: Always 'cell_ext_os_area'. * @hdr_version: Header format version number. - * @os_area_offset: Starting segment number of os image area. + * @db_area_offset: Starting segment number of other os database area. * @ldr_area_offset: Starting segment number of bootloader image area. * @ldr_format: HEADER_LDR_FORMAT flag. * @ldr_size: Size of bootloader image in bytes. @@ -50,9 +53,9 @@ enum { */ struct os_area_header { - s8 magic_num[16]; + u8 magic_num[16]; u32 hdr_version; - u32 os_area_offset; + u32 db_area_offset; u32 ldr_area_offset; u32 _reserved_1; u32 ldr_format; @@ -60,12 +63,12 @@ struct os_area_header { u32 _reserved_2[6]; }; -enum { +enum os_area_boot_flag { PARAM_BOOT_FLAG_GAME_OS = 0, PARAM_BOOT_FLAG_OTHER_OS = 1, }; -enum { +enum os_area_ctrl_button { PARAM_CTRL_BUTTON_O_IS_YES = 0, PARAM_CTRL_BUTTON_X_IS_YES = 1, }; @@ -84,6 +87,9 @@ enum { * @dns_primary: User preference of static primary dns server. * @dns_secondary: User preference of static secondary dns server. * + * The ps3 rtc maintains a read-only value that approximates seconds since + * 2000-01-01 00:00:00 UTC. + * * User preference of zero for static_ip_addr means use dhcp. */ @@ -108,45 +114,172 @@ struct os_area_params { u8 _reserved_5[8]; }; +enum { + OS_AREA_DB_MAGIC_NUM = 0x2d64622dU, +}; + /** - * struct saved_params - Static working copies of data from the 'Other OS' area. + * struct os_area_db - Shared flash memory database. + * @magic_num: Always '-db-' = 0x2d64622d. + * @version: os_area_db format version number. + * @index_64: byte offset of the database id index for 64 bit variables. + * @count_64: number of usable 64 bit index entries + * @index_32: byte offset of the database id index for 32 bit variables. + * @count_32: number of usable 32 bit index entries + * @index_16: byte offset of the database id index for 16 bit variables. + * @count_16: number of usable 16 bit index entries * - * For the convinience of the guest, the HV makes a copy of the 'Other OS' area - * in flash to a high address in the boot memory region and then puts that RAM - * address and the byte count into the repository for retreval by the guest. - * We copy the data we want into a static variable and allow the memory setup - * by the HV to be claimed by the lmb manager. + * Flash rom storage for exclusive use by guests running in the other os lpar. + * The current system configuration allocates 1K (two segments) for other os + * use. + */ + +struct os_area_db { + u32 magic_num; + u16 version; + u16 _reserved_1; + u16 index_64; + u16 count_64; + u16 index_32; + u16 count_32; + u16 index_16; + u16 count_16; + u32 _reserved_2; + u8 _db_data[1000]; +}; + +/** + * enum os_area_db_owner - Data owners. + */ + +enum os_area_db_owner { + OS_AREA_DB_OWNER_ANY = -1, + OS_AREA_DB_OWNER_NONE = 0, + OS_AREA_DB_OWNER_PROTOTYPE = 1, + OS_AREA_DB_OWNER_LINUX = 2, + OS_AREA_DB_OWNER_PETITBOOT = 3, + OS_AREA_DB_OWNER_MAX = 32, +}; + +enum os_area_db_key { + OS_AREA_DB_KEY_ANY = -1, + OS_AREA_DB_KEY_NONE = 0, + OS_AREA_DB_KEY_RTC_DIFF = 1, + OS_AREA_DB_KEY_VIDEO_MODE = 2, + OS_AREA_DB_KEY_MAX = 8, +}; + +struct os_area_db_id { + int owner; + int key; +}; + +static const struct os_area_db_id os_area_db_id_empty = { + .owner = OS_AREA_DB_OWNER_NONE, + .key = OS_AREA_DB_KEY_NONE +}; + +static const struct os_area_db_id os_area_db_id_any = { + .owner = OS_AREA_DB_OWNER_ANY, + .key = OS_AREA_DB_KEY_ANY +}; + +static const struct os_area_db_id os_area_db_id_rtc_diff = { + .owner = OS_AREA_DB_OWNER_LINUX, + .key = OS_AREA_DB_KEY_RTC_DIFF +}; + +static const struct os_area_db_id os_area_db_id_video_mode = { + .owner = OS_AREA_DB_OWNER_LINUX, + .key = OS_AREA_DB_KEY_VIDEO_MODE +}; + +#define SECONDS_FROM_1970_TO_2000 946684800LL + +/** + * struct saved_params - Static working copies of data from the PS3 'os area'. + * + * The order of preference we use for the rtc_diff source: + * 1) The database value. + * 2) The game os value. + * 3) The number of seconds from 1970 to 2000. */ struct saved_params { - /* param 0 */ + unsigned int valid; s64 rtc_diff; unsigned int av_multi_out; - unsigned int ctrl_button; - /* param 1 */ - u8 static_ip_addr[4]; - u8 network_mask[4]; - u8 default_gateway[4]; - /* param 2 */ - u8 dns_primary[4]; - u8 dns_secondary[4]; } static saved_params; +static struct property property_rtc_diff = { + .name = "linux,rtc_diff", + .length = sizeof(saved_params.rtc_diff), + .value = &saved_params.rtc_diff, +}; + +static struct property property_av_multi_out = { + .name = "linux,av_multi_out", + .length = sizeof(saved_params.av_multi_out), + .value = &saved_params.av_multi_out, +}; + +/** + * os_area_set_property - Add or overwrite a saved_params value to the device tree. + * + * Overwrites an existing property. + */ + +static void os_area_set_property(struct device_node *node, + struct property *prop) +{ + int result; + struct property *tmp = of_find_property(node, prop->name, NULL); + + if (tmp) { + pr_debug("%s:%d found %s\n", __func__, __LINE__, prop->name); + prom_remove_property(node, tmp); + } + + result = prom_add_property(node, prop); + + if (result) + pr_debug("%s:%d prom_set_property failed\n", __func__, + __LINE__); +} + +/** + * os_area_get_property - Get a saved_params value from the device tree. + * + */ + +static void __init os_area_get_property(struct device_node *node, + struct property *prop) +{ + const struct property *tmp = of_find_property(node, prop->name, NULL); + + if (tmp) { + BUG_ON(prop->length != tmp->length); + memcpy(prop->value, tmp->value, prop->length); + } else + pr_debug("%s:%d not found %s\n", __func__, __LINE__, + prop->name); +} + #define dump_header(_a) _dump_header(_a, __func__, __LINE__) static void _dump_header(const struct os_area_header *h, const char *func, int line) { - pr_debug("%s:%d: h.magic_num: '%s'\n", func, line, + pr_debug("%s:%d: h.magic_num: '%s'\n", func, line, h->magic_num); - pr_debug("%s:%d: h.hdr_version: %u\n", func, line, + pr_debug("%s:%d: h.hdr_version: %u\n", func, line, h->hdr_version); - pr_debug("%s:%d: h.os_area_offset: %u\n", func, line, - h->os_area_offset); + pr_debug("%s:%d: h.db_area_offset: %u\n", func, line, + h->db_area_offset); pr_debug("%s:%d: h.ldr_area_offset: %u\n", func, line, h->ldr_area_offset); - pr_debug("%s:%d: h.ldr_format: %u\n", func, line, + pr_debug("%s:%d: h.ldr_format: %u\n", func, line, h->ldr_format); - pr_debug("%s:%d: h.ldr_size: %xh\n", func, line, + pr_debug("%s:%d: h.ldr_size: %xh\n", func, line, h->ldr_size); } @@ -176,7 +309,7 @@ static void _dump_params(const struct os_area_params *p, const char *func, p->dns_secondary[2], p->dns_secondary[3]); } -static int __init verify_header(const struct os_area_header *header) +static int verify_header(const struct os_area_header *header) { if (memcmp(header->magic_num, "cell_ext_os_area", 16)) { pr_debug("%s:%d magic_num failed\n", __func__, __LINE__); @@ -188,7 +321,7 @@ static int __init verify_header(const struct os_area_header *header) return -1; } - if (header->os_area_offset > header->ldr_area_offset) { + if (header->db_area_offset > header->ldr_area_offset) { pr_debug("%s:%d offsets failed\n", __func__, __LINE__); return -1; } @@ -196,58 +329,477 @@ static int __init verify_header(const struct os_area_header *header) return 0; } -int __init ps3_os_area_init(void) +static int db_verify(const struct os_area_db *db) +{ + if (db->magic_num != OS_AREA_DB_MAGIC_NUM) { + pr_debug("%s:%d magic_num failed\n", __func__, __LINE__); + return -1; + } + + if (db->version != 1) { + pr_debug("%s:%d version failed\n", __func__, __LINE__); + return -1; + } + + return 0; +} + +struct db_index { + uint8_t owner:5; + uint8_t key:3; +}; + +struct db_iterator { + const struct os_area_db *db; + struct os_area_db_id match_id; + struct db_index *idx; + struct db_index *last_idx; + union { + uint64_t *value_64; + uint32_t *value_32; + uint16_t *value_16; + }; +}; + +static unsigned int db_align_up(unsigned int val, unsigned int size) +{ + return (val + (size - 1)) & (~(size - 1)); +} + +/** + * db_for_each_64 - Iterator for 64 bit entries. + * + * A NULL value for id can be used to match all entries. + * OS_AREA_DB_OWNER_ANY and OS_AREA_DB_KEY_ANY can be used to match all. + */ + +static int db_for_each_64(const struct os_area_db *db, + const struct os_area_db_id *match_id, struct db_iterator *i) +{ +next: + if (!i->db) { + i->db = db; + i->match_id = match_id ? *match_id : os_area_db_id_any; + i->idx = (void *)db + db->index_64; + i->last_idx = i->idx + db->count_64; + i->value_64 = (void *)db + db->index_64 + + db_align_up(db->count_64, 8); + } else { + i->idx++; + i->value_64++; + } + + if (i->idx >= i->last_idx) { + pr_debug("%s:%d: reached end\n", __func__, __LINE__); + return 0; + } + + if (i->match_id.owner != OS_AREA_DB_OWNER_ANY + && i->match_id.owner != (int)i->idx->owner) + goto next; + if (i->match_id.key != OS_AREA_DB_KEY_ANY + && i->match_id.key != (int)i->idx->key) + goto next; + + return 1; +} + +static int db_delete_64(struct os_area_db *db, const struct os_area_db_id *id) +{ + struct db_iterator i; + + for (i.db = NULL; db_for_each_64(db, id, &i); ) { + + pr_debug("%s:%d: got (%d:%d) %llxh\n", __func__, __LINE__, + i.idx->owner, i.idx->key, + (unsigned long long)*i.value_64); + + i.idx->owner = 0; + i.idx->key = 0; + *i.value_64 = 0; + } + return 0; +} + +static int db_set_64(struct os_area_db *db, const struct os_area_db_id *id, + uint64_t value) +{ + struct db_iterator i; + + pr_debug("%s:%d: (%d:%d) <= %llxh\n", __func__, __LINE__, + id->owner, id->key, (unsigned long long)value); + + if (!id->owner || id->owner == OS_AREA_DB_OWNER_ANY + || id->key == OS_AREA_DB_KEY_ANY) { + pr_debug("%s:%d: bad id: (%d:%d)\n", __func__, + __LINE__, id->owner, id->key); + return -1; + } + + db_delete_64(db, id); + + i.db = NULL; + if (db_for_each_64(db, &os_area_db_id_empty, &i)) { + + pr_debug("%s:%d: got (%d:%d) %llxh\n", __func__, __LINE__, + i.idx->owner, i.idx->key, + (unsigned long long)*i.value_64); + + i.idx->owner = id->owner; + i.idx->key = id->key; + *i.value_64 = value; + + pr_debug("%s:%d: set (%d:%d) <= %llxh\n", __func__, __LINE__, + i.idx->owner, i.idx->key, + (unsigned long long)*i.value_64); + return 0; + } + pr_debug("%s:%d: database full.\n", + __func__, __LINE__); + return -1; +} + +static int db_get_64(const struct os_area_db *db, + const struct os_area_db_id *id, uint64_t *value) +{ + struct db_iterator i; + + i.db = NULL; + if (db_for_each_64(db, id, &i)) { + *value = *i.value_64; + pr_debug("%s:%d: found %lld\n", __func__, __LINE__, + (long long int)*i.value_64); + return 0; + } + pr_debug("%s:%d: not found\n", __func__, __LINE__); + return -1; +} + +static int db_get_rtc_diff(const struct os_area_db *db, int64_t *rtc_diff) +{ + return db_get_64(db, &os_area_db_id_rtc_diff, (uint64_t*)rtc_diff); +} + +#define dump_db(a) _dump_db(a, __func__, __LINE__) +static void _dump_db(const struct os_area_db *db, const char *func, + int line) +{ + pr_debug("%s:%d: db.magic_num: '%s'\n", func, line, + (const char*)&db->magic_num); + pr_debug("%s:%d: db.version: %u\n", func, line, + db->version); + pr_debug("%s:%d: db.index_64: %u\n", func, line, + db->index_64); + pr_debug("%s:%d: db.count_64: %u\n", func, line, + db->count_64); + pr_debug("%s:%d: db.index_32: %u\n", func, line, + db->index_32); + pr_debug("%s:%d: db.count_32: %u\n", func, line, + db->count_32); + pr_debug("%s:%d: db.index_16: %u\n", func, line, + db->index_16); + pr_debug("%s:%d: db.count_16: %u\n", func, line, + db->count_16); +} + +static void os_area_db_init(struct os_area_db *db) +{ + enum { + HEADER_SIZE = offsetof(struct os_area_db, _db_data), + INDEX_64_COUNT = 64, + VALUES_64_COUNT = 57, + INDEX_32_COUNT = 64, + VALUES_32_COUNT = 57, + INDEX_16_COUNT = 64, + VALUES_16_COUNT = 57, + }; + + memset(db, 0, sizeof(struct os_area_db)); + + db->magic_num = OS_AREA_DB_MAGIC_NUM; + db->version = 1; + db->index_64 = HEADER_SIZE; + db->count_64 = VALUES_64_COUNT; + db->index_32 = HEADER_SIZE + + INDEX_64_COUNT * sizeof(struct db_index) + + VALUES_64_COUNT * sizeof(u64); + db->count_32 = VALUES_32_COUNT; + db->index_16 = HEADER_SIZE + + INDEX_64_COUNT * sizeof(struct db_index) + + VALUES_64_COUNT * sizeof(u64) + + INDEX_32_COUNT * sizeof(struct db_index) + + VALUES_32_COUNT * sizeof(u32); + db->count_16 = VALUES_16_COUNT; + + /* Rules to check db layout. */ + + BUILD_BUG_ON(sizeof(struct db_index) != 1); + BUILD_BUG_ON(sizeof(struct os_area_db) != 2 * OS_AREA_SEGMENT_SIZE); + BUILD_BUG_ON(INDEX_64_COUNT & 0x7); + BUILD_BUG_ON(VALUES_64_COUNT > INDEX_64_COUNT); + BUILD_BUG_ON(INDEX_32_COUNT & 0x7); + BUILD_BUG_ON(VALUES_32_COUNT > INDEX_32_COUNT); + BUILD_BUG_ON(INDEX_16_COUNT & 0x7); + BUILD_BUG_ON(VALUES_16_COUNT > INDEX_16_COUNT); + BUILD_BUG_ON(HEADER_SIZE + + INDEX_64_COUNT * sizeof(struct db_index) + + VALUES_64_COUNT * sizeof(u64) + + INDEX_32_COUNT * sizeof(struct db_index) + + VALUES_32_COUNT * sizeof(u32) + + INDEX_16_COUNT * sizeof(struct db_index) + + VALUES_16_COUNT * sizeof(u16) + > sizeof(struct os_area_db)); +} + +/** + * update_flash_db - Helper for os_area_queue_work_handler. + * + */ + +static void update_flash_db(void) +{ + int result; + int file; + off_t offset; + ssize_t count; + static const unsigned int buf_len = 8 * OS_AREA_SEGMENT_SIZE; + const struct os_area_header *header; + struct os_area_db* db; + + /* Read in header and db from flash. */ + + file = sys_open("/dev/ps3flash", O_RDWR, 0); + + if (file < 0) { + pr_debug("%s:%d sys_open failed\n", __func__, __LINE__); + goto fail_open; + } + + header = kmalloc(buf_len, GFP_KERNEL); + + if (!header) { + pr_debug("%s:%d kmalloc failed\n", __func__, __LINE__); + goto fail_malloc; + } + + offset = sys_lseek(file, 0, SEEK_SET); + + if (offset != 0) { + pr_debug("%s:%d sys_lseek failed\n", __func__, __LINE__); + goto fail_header_seek; + } + + count = sys_read(file, (char __user *)header, buf_len); + + result = count < OS_AREA_SEGMENT_SIZE || verify_header(header) + || count < header->db_area_offset * OS_AREA_SEGMENT_SIZE; + + if (result) { + pr_debug("%s:%d verify_header failed\n", __func__, __LINE__); + dump_header(header); + goto fail_header; + } + + /* Now got a good db offset and some maybe good db data. */ + + db = (void*)header + header->db_area_offset * OS_AREA_SEGMENT_SIZE; + + result = db_verify(db); + + if (result) { + printk(KERN_NOTICE "%s:%d: Verify of flash database failed, " + "formatting.\n", __func__, __LINE__); + dump_db(db); + os_area_db_init(db); + } + + /* Now got good db data. */ + + db_set_64(db, &os_area_db_id_rtc_diff, saved_params.rtc_diff); + + offset = sys_lseek(file, header->db_area_offset * OS_AREA_SEGMENT_SIZE, + SEEK_SET); + + if (offset != header->db_area_offset * OS_AREA_SEGMENT_SIZE) { + pr_debug("%s:%d sys_lseek failed\n", __func__, __LINE__); + goto fail_db_seek; + } + + count = sys_write(file, (const char __user *)db, + sizeof(struct os_area_db)); + + if (count < sizeof(struct os_area_db)) { + pr_debug("%s:%d sys_write failed\n", __func__, __LINE__); + } + +fail_db_seek: +fail_header: +fail_header_seek: + kfree(header); +fail_malloc: + sys_close(file); +fail_open: + return; +} + +/** + * os_area_queue_work_handler - Asynchronous write handler. + * + * An asynchronous write for flash memory and the device tree. Do not + * call directly, use os_area_queue_work(). + */ + +static void os_area_queue_work_handler(struct work_struct *work) +{ + struct device_node *node; + + pr_debug(" -> %s:%d\n", __func__, __LINE__); + + node = of_find_node_by_path("/"); + + if (node) { + os_area_set_property(node, &property_rtc_diff); + of_node_put(node); + } else + pr_debug("%s:%d of_find_node_by_path failed\n", + __func__, __LINE__); + +#if defined(CONFIG_PS3_FLASH) || defined(CONFIG_PS3_FLASH_MODULE) + update_flash_db(); +#else + printk(KERN_WARNING "%s:%d: No flash rom driver configured.\n", + __func__, __LINE__); +#endif + pr_debug(" <- %s:%d\n", __func__, __LINE__); +} + +static void os_area_queue_work(void) +{ + static DECLARE_WORK(q, os_area_queue_work_handler); + + wmb(); + schedule_work(&q); +} + +/** + * ps3_os_area_save_params - Copy data from os area mirror to @saved_params. + * + * For the convenience of the guest the HV makes a copy of the os area in + * flash to a high address in the boot memory region and then puts that RAM + * address and the byte count into the repository for retrieval by the guest. + * We copy the data we want into a static variable and allow the memory setup + * by the HV to be claimed by the lmb manager. + * + * The os area mirror will not be available to a second stage kernel, and + * the header verify will fail. In this case, the saved_params values will + * be set from flash memory or the passed in device tree in ps3_os_area_init(). + */ + +void __init ps3_os_area_save_params(void) { int result; u64 lpar_addr; unsigned int size; struct os_area_header *header; struct os_area_params *params; + struct os_area_db *db; + + pr_debug(" -> %s:%d\n", __func__, __LINE__); result = ps3_repository_read_boot_dat_info(&lpar_addr, &size); if (result) { pr_debug("%s:%d ps3_repository_read_boot_dat_info failed\n", __func__, __LINE__); - return result; + return; } header = (struct os_area_header *)__va(lpar_addr); - params = (struct os_area_params *)__va(lpar_addr + OS_AREA_SEGMENT_SIZE); + params = (struct os_area_params *)__va(lpar_addr + + OS_AREA_SEGMENT_SIZE); result = verify_header(header); if (result) { + /* Second stage kernels exit here. */ pr_debug("%s:%d verify_header failed\n", __func__, __LINE__); dump_header(header); - return -EIO; + return; } + db = (struct os_area_db *)__va(lpar_addr + + header->db_area_offset * OS_AREA_SEGMENT_SIZE); + dump_header(header); dump_params(params); + dump_db(db); - saved_params.rtc_diff = params->rtc_diff; + result = db_verify(db) || db_get_rtc_diff(db, &saved_params.rtc_diff); + if (result) + saved_params.rtc_diff = params->rtc_diff ? params->rtc_diff + : SECONDS_FROM_1970_TO_2000; saved_params.av_multi_out = params->av_multi_out; - saved_params.ctrl_button = params->ctrl_button; - memcpy(saved_params.static_ip_addr, params->static_ip_addr, 4); - memcpy(saved_params.network_mask, params->network_mask, 4); - memcpy(saved_params.default_gateway, params->default_gateway, 4); - memcpy(saved_params.dns_secondary, params->dns_secondary, 4); + saved_params.valid = 1; + + memset(header, 0, sizeof(*header)); - return result; + pr_debug(" <- %s:%d\n", __func__, __LINE__); } /** - * ps3_os_area_rtc_diff - Returns the ps3 rtc diff value. + * ps3_os_area_init - Setup os area device tree properties as needed. + */ + +void __init ps3_os_area_init(void) +{ + struct device_node *node; + + pr_debug(" -> %s:%d\n", __func__, __LINE__); + + node = of_find_node_by_path("/"); + + if (!saved_params.valid && node) { + /* Second stage kernels should have a dt entry. */ + os_area_get_property(node, &property_rtc_diff); + os_area_get_property(node, &property_av_multi_out); + } + + if(!saved_params.rtc_diff) + saved_params.rtc_diff = SECONDS_FROM_1970_TO_2000; + + if (node) { + os_area_set_property(node, &property_rtc_diff); + os_area_set_property(node, &property_av_multi_out); + of_node_put(node); + } else + pr_debug("%s:%d of_find_node_by_path failed\n", + __func__, __LINE__); + + pr_debug(" <- %s:%d\n", __func__, __LINE__); +} + +/** + * ps3_os_area_get_rtc_diff - Returns the rtc diff value. + */ + +u64 ps3_os_area_get_rtc_diff(void) +{ + return saved_params.rtc_diff; +} + +/** + * ps3_os_area_set_rtc_diff - Set the rtc diff value. * - * The ps3 rtc maintains a value that approximates seconds since - * 2000-01-01 00:00:00 UTC. Returns the exact number of seconds from 1970 to - * 2000 when saved_params.rtc_diff has not been properly set up. + * An asynchronous write is needed to support writing updates from + * the timer interrupt context. */ -u64 ps3_os_area_rtc_diff(void) +void ps3_os_area_set_rtc_diff(u64 rtc_diff) { - return saved_params.rtc_diff ? saved_params.rtc_diff : 946684800UL; + if (saved_params.rtc_diff != rtc_diff) { + saved_params.rtc_diff = rtc_diff; + os_area_queue_work(); + } } /** diff --git a/arch/powerpc/platforms/ps3/platform.h b/arch/powerpc/platforms/ps3/platform.h index 2eb8f92704b4..01f0c9506e11 100644 --- a/arch/powerpc/platforms/ps3/platform.h +++ b/arch/powerpc/platforms/ps3/platform.h @@ -47,7 +47,11 @@ void __init ps3_register_ipi_debug_brk(unsigned int cpu, unsigned int virq); /* smp */ void smp_init_ps3(void); +#ifdef CONFIG_SMP void ps3_smp_cleanup_cpu(int cpu); +#else +static inline void ps3_smp_cleanup_cpu(int cpu) { } +#endif /* time */ @@ -58,8 +62,10 @@ int ps3_set_rtc_time(struct rtc_time *time); /* os area */ -int __init ps3_os_area_init(void); -u64 ps3_os_area_rtc_diff(void); +void __init ps3_os_area_save_params(void); +void __init ps3_os_area_init(void); +u64 ps3_os_area_get_rtc_diff(void); +void ps3_os_area_set_rtc_diff(u64 rtc_diff); /* spu */ diff --git a/arch/powerpc/platforms/ps3/setup.c b/arch/powerpc/platforms/ps3/setup.c index 609945dbe394..5c2cbb08eb52 100644 --- a/arch/powerpc/platforms/ps3/setup.c +++ b/arch/powerpc/platforms/ps3/setup.c @@ -206,6 +206,7 @@ static void __init ps3_setup_arch(void) prealloc_ps3flash_bounce_buffer(); ppc_md.power_save = ps3_power_save; + ps3_os_area_init(); DBG(" <- %s:%d\n", __func__, __LINE__); } @@ -228,7 +229,7 @@ static int __init ps3_probe(void) powerpc_firmware_features |= FW_FEATURE_PS3_POSSIBLE; - ps3_os_area_init(); + ps3_os_area_save_params(); ps3_mm_init(); ps3_mm_vas_create(&htab_size); ps3_hpte_init(htab_size); diff --git a/arch/powerpc/platforms/ps3/time.c b/arch/powerpc/platforms/ps3/time.c index 802a9ccacb5e..d0daf7d6d3b2 100644 --- a/arch/powerpc/platforms/ps3/time.c +++ b/arch/powerpc/platforms/ps3/time.c @@ -50,12 +50,6 @@ static void __maybe_unused _dump_time(int time, const char *func, _dump_tm(&tm, func, line); } -/** - * rtc_shift - Difference in seconds between 1970 and the ps3 rtc value. - */ - -static s64 rtc_shift; - void __init ps3_calibrate_decr(void) { int result; @@ -66,8 +60,6 @@ void __init ps3_calibrate_decr(void) ppc_tb_freq = tmp; ppc_proc_freq = ppc_tb_freq * 40; - - rtc_shift = ps3_os_area_rtc_diff(); } static u64 read_rtc(void) @@ -87,18 +79,18 @@ int ps3_set_rtc_time(struct rtc_time *tm) u64 now = mktime(tm->tm_year + 1900, tm->tm_mon + 1, tm->tm_mday, tm->tm_hour, tm->tm_min, tm->tm_sec); - rtc_shift = now - read_rtc(); + ps3_os_area_set_rtc_diff(now - read_rtc()); return 0; } void ps3_get_rtc_time(struct rtc_time *tm) { - to_tm(read_rtc() + rtc_shift, tm); + to_tm(read_rtc() + ps3_os_area_get_rtc_diff(), tm); tm->tm_year -= 1900; tm->tm_mon -= 1; } unsigned long __init ps3_get_boot_time(void) { - return read_rtc() + rtc_shift; + return read_rtc() + ps3_os_area_get_rtc_diff(); } |