diff options
| -rw-r--r-- | arch/x86/include/asm/uv/bios.h | 59 | ||||
| -rw-r--r-- | arch/x86/platform/uv/bios_uv.c | 48 | ||||
| -rw-r--r-- | arch/x86/platform/uv/uv_sysfs.c | 2 |
3 files changed, 81 insertions, 28 deletions
diff --git a/arch/x86/include/asm/uv/bios.h b/arch/x86/include/asm/uv/bios.h index 71605c7d5c5c..c852590254d5 100644 --- a/arch/x86/include/asm/uv/bios.h +++ b/arch/x86/include/asm/uv/bios.h @@ -51,15 +51,66 @@ enum { BIOS_STATUS_UNAVAIL = -EBUSY }; +/* Address map parameters */ +struct uv_gam_parameters { + u64 mmr_base; + u64 gru_base; + u8 mmr_shift; /* Convert PNode to MMR space offset */ + u8 gru_shift; /* Convert PNode to GRU space offset */ + u8 gpa_shift; /* Size of offset field in GRU phys addr */ + u8 unused1; +}; + +/* UV_TABLE_GAM_RANGE_ENTRY values */ +#define UV_GAM_RANGE_TYPE_UNUSED 0 /* End of table */ +#define UV_GAM_RANGE_TYPE_RAM 1 /* Normal RAM */ +#define UV_GAM_RANGE_TYPE_NVRAM 2 /* Non-volatile memory */ +#define UV_GAM_RANGE_TYPE_NV_WINDOW 3 /* NVMDIMM block window */ +#define UV_GAM_RANGE_TYPE_NV_MAILBOX 4 /* NVMDIMM mailbox */ +#define UV_GAM_RANGE_TYPE_HOLE 5 /* Unused address range */ +#define UV_GAM_RANGE_TYPE_MAX 6 + +/* The structure stores PA bits 56:26, for 64MB granularity */ +#define UV_GAM_RANGE_SHFT 26 /* 64MB */ + +struct uv_gam_range_entry { + char type; /* Entry type: GAM_RANGE_TYPE_UNUSED, etc. */ + char unused1; + u16 nasid; /* HNasid */ + u16 sockid; /* Socket ID, high bits of APIC ID */ + u16 pnode; /* Index to MMR and GRU spaces */ + u32 pxm; /* ACPI proximity domain number */ + u32 limit; /* PA bits 56:26 (UV_GAM_RANGE_SHFT) */ +}; + +#define UV_SYSTAB_SIG "UVST" +#define UV_SYSTAB_VERSION_1 1 /* UV1/2/3 BIOS version */ +#define UV_SYSTAB_VERSION_UV4 0x400 /* UV4 BIOS base version */ +#define UV_SYSTAB_VERSION_UV4_1 0x401 /* + gpa_shift */ +#define UV_SYSTAB_VERSION_UV4_2 0x402 /* + TYPE_NVRAM/WINDOW/MBOX */ +#define UV_SYSTAB_VERSION_UV4_LATEST UV_SYSTAB_VERSION_UV4_2 + +#define UV_SYSTAB_TYPE_UNUSED 0 /* End of table (offset == 0) */ +#define UV_SYSTAB_TYPE_GAM_PARAMS 1 /* GAM PARAM conversions */ +#define UV_SYSTAB_TYPE_GAM_RNG_TBL 2 /* GAM entry table */ +#define UV_SYSTAB_TYPE_MAX 3 + /* * The UV system table describes specific firmware * capabilities available to the Linux kernel at runtime. */ struct uv_systab { - char signature[4]; /* must be "UVST" */ + char signature[4]; /* must be UV_SYSTAB_SIG */ u32 revision; /* distinguish different firmware revs */ u64 function; /* BIOS runtime callback function ptr */ + u32 size; /* systab size (starting with _VERSION_UV4) */ + struct { + u32 type:8; /* type of entry */ + u32 offset:24; /* byte offset from struct start to entry */ + } entry[1]; /* additional entries follow */ }; +extern struct uv_systab *uv_systab; +/* (... end of definitions from UV BIOS ...) */ enum { BIOS_FREQ_BASE_PLATFORM = 0, @@ -99,7 +150,11 @@ extern s64 uv_bios_change_memprotect(u64, u64, enum uv_memprotect); extern s64 uv_bios_reserved_page_pa(u64, u64 *, u64 *, u64 *); extern int uv_bios_set_legacy_vga_target(bool decode, int domain, int bus); +#ifdef CONFIG_EFI extern void uv_bios_init(void); +#else +void uv_bios_init(void) { } +#endif extern unsigned long sn_rtc_cycles_per_second; extern int uv_type; @@ -107,7 +162,7 @@ extern long sn_partition_id; extern long sn_coherency_id; extern long sn_region_size; extern long system_serial_number; -#define partition_coherence_id() (sn_coherency_id) +#define uv_partition_coherence_id() (sn_coherency_id) extern struct kobject *sgi_uv_kobj; /* /sys/firmware/sgi_uv */ diff --git a/arch/x86/platform/uv/bios_uv.c b/arch/x86/platform/uv/bios_uv.c index 1584cbed0dce..815fec6e05e2 100644 --- a/arch/x86/platform/uv/bios_uv.c +++ b/arch/x86/platform/uv/bios_uv.c @@ -21,19 +21,20 @@ #include <linux/efi.h> #include <linux/export.h> +#include <linux/slab.h> #include <asm/efi.h> #include <linux/io.h> #include <asm/uv/bios.h> #include <asm/uv/uv_hub.h> -static struct uv_systab uv_systab; +struct uv_systab *uv_systab; s64 uv_bios_call(enum uv_bios_cmd which, u64 a1, u64 a2, u64 a3, u64 a4, u64 a5) { - struct uv_systab *tab = &uv_systab; + struct uv_systab *tab = uv_systab; s64 ret; - if (!tab->function) + if (!tab || !tab->function) /* * BIOS does not support UV systab */ @@ -183,34 +184,31 @@ int uv_bios_set_legacy_vga_target(bool decode, int domain, int bus) } EXPORT_SYMBOL_GPL(uv_bios_set_legacy_vga_target); - #ifdef CONFIG_EFI void uv_bios_init(void) { - struct uv_systab *tab; - - if ((efi.uv_systab == EFI_INVALID_TABLE_ADDR) || - (efi.uv_systab == (unsigned long)NULL)) { - printk(KERN_CRIT "No EFI UV System Table.\n"); - uv_systab.function = (unsigned long)NULL; + uv_systab = NULL; + if ((efi.uv_systab == EFI_INVALID_TABLE_ADDR) || !efi.uv_systab) { + pr_crit("UV: UVsystab: missing\n"); return; } - tab = (struct uv_systab *)ioremap(efi.uv_systab, - sizeof(struct uv_systab)); - if (strncmp(tab->signature, "UVST", 4) != 0) - printk(KERN_ERR "bad signature in UV system table!"); - - /* - * Copy table to permanent spot for later use. - */ - memcpy(&uv_systab, tab, sizeof(struct uv_systab)); - iounmap(tab); + uv_systab = ioremap(efi.uv_systab, sizeof(struct uv_systab)); + if (!uv_systab || strncmp(uv_systab->signature, UV_SYSTAB_SIG, 4)) { + pr_err("UV: UVsystab: bad signature!\n"); + iounmap(uv_systab); + return; + } - printk(KERN_INFO "EFI UV System Table Revision %d\n", - uv_systab.revision); + if (uv_systab->revision >= UV_SYSTAB_VERSION_UV4) { + iounmap(uv_systab); + uv_systab = ioremap(efi.uv_systab, uv_systab->size); + if (!uv_systab) { + pr_err("UV: UVsystab: ioremap(%d) failed!\n", + uv_systab->size); + return; + } + } + pr_info("UV: UVsystab: Revision:%x\n", uv_systab->revision); } -#else /* !CONFIG_EFI */ - -void uv_bios_init(void) { } #endif diff --git a/arch/x86/platform/uv/uv_sysfs.c b/arch/x86/platform/uv/uv_sysfs.c index 5d4ba301e776..e9da9ebd924a 100644 --- a/arch/x86/platform/uv/uv_sysfs.c +++ b/arch/x86/platform/uv/uv_sysfs.c @@ -34,7 +34,7 @@ static ssize_t partition_id_show(struct kobject *kobj, static ssize_t coherence_id_show(struct kobject *kobj, struct kobj_attribute *attr, char *buf) { - return snprintf(buf, PAGE_SIZE, "%ld\n", partition_coherence_id()); + return snprintf(buf, PAGE_SIZE, "%ld\n", uv_partition_coherence_id()); } static struct kobj_attribute partition_id_attr = |