diff options
Diffstat (limited to 'arch/x86/kernel/bios_uv.c')
| -rw-r--r-- | arch/x86/kernel/bios_uv.c | 215 |
1 files changed, 0 insertions, 215 deletions
diff --git a/arch/x86/kernel/bios_uv.c b/arch/x86/kernel/bios_uv.c deleted file mode 100644 index 8bc57baaa9ad..000000000000 --- a/arch/x86/kernel/bios_uv.c +++ /dev/null @@ -1,215 +0,0 @@ -/* - * BIOS run time interface routines. - * - * 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) 2008-2009 Silicon Graphics, Inc. All Rights Reserved. - * Copyright (c) Russ Anderson <rja@sgi.com> - */ - -#include <linux/efi.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; - -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; - s64 ret; - - if (!tab->function) - /* - * BIOS does not support UV systab - */ - return BIOS_STATUS_UNIMPLEMENTED; - - ret = efi_call6((void *)__va(tab->function), (u64)which, - a1, a2, a3, a4, a5); - return ret; -} -EXPORT_SYMBOL_GPL(uv_bios_call); - -s64 uv_bios_call_irqsave(enum uv_bios_cmd which, u64 a1, u64 a2, u64 a3, - u64 a4, u64 a5) -{ - unsigned long bios_flags; - s64 ret; - - local_irq_save(bios_flags); - ret = uv_bios_call(which, a1, a2, a3, a4, a5); - local_irq_restore(bios_flags); - - return ret; -} - -s64 uv_bios_call_reentrant(enum uv_bios_cmd which, u64 a1, u64 a2, u64 a3, - u64 a4, u64 a5) -{ - s64 ret; - - preempt_disable(); - ret = uv_bios_call(which, a1, a2, a3, a4, a5); - preempt_enable(); - - return ret; -} - - -long sn_partition_id; -EXPORT_SYMBOL_GPL(sn_partition_id); -long sn_coherency_id; -EXPORT_SYMBOL_GPL(sn_coherency_id); -long sn_region_size; -EXPORT_SYMBOL_GPL(sn_region_size); -long system_serial_number; -EXPORT_SYMBOL_GPL(system_serial_number); -int uv_type; -EXPORT_SYMBOL_GPL(uv_type); - - -s64 uv_bios_get_sn_info(int fc, int *uvtype, long *partid, long *coher, - long *region, long *ssn) -{ - s64 ret; - u64 v0, v1; - union partition_info_u part; - - ret = uv_bios_call_irqsave(UV_BIOS_GET_SN_INFO, fc, - (u64)(&v0), (u64)(&v1), 0, 0); - if (ret != BIOS_STATUS_SUCCESS) - return ret; - - part.val = v0; - if (uvtype) - *uvtype = part.hub_version; - if (partid) - *partid = part.partition_id; - if (coher) - *coher = part.coherence_id; - if (region) - *region = part.region_size; - if (ssn) - *ssn = v1; - return ret; -} -EXPORT_SYMBOL_GPL(uv_bios_get_sn_info); - -int -uv_bios_mq_watchlist_alloc(unsigned long addr, unsigned int mq_size, - unsigned long *intr_mmr_offset) -{ - u64 watchlist; - s64 ret; - - /* - * bios returns watchlist number or negative error number. - */ - ret = (int)uv_bios_call_irqsave(UV_BIOS_WATCHLIST_ALLOC, addr, - mq_size, (u64)intr_mmr_offset, - (u64)&watchlist, 0); - if (ret < BIOS_STATUS_SUCCESS) - return ret; - - return watchlist; -} -EXPORT_SYMBOL_GPL(uv_bios_mq_watchlist_alloc); - -int -uv_bios_mq_watchlist_free(int blade, int watchlist_num) -{ - return (int)uv_bios_call_irqsave(UV_BIOS_WATCHLIST_FREE, - blade, watchlist_num, 0, 0, 0); -} -EXPORT_SYMBOL_GPL(uv_bios_mq_watchlist_free); - -s64 -uv_bios_change_memprotect(u64 paddr, u64 len, enum uv_memprotect perms) -{ - return uv_bios_call_irqsave(UV_BIOS_MEMPROTECT, paddr, len, - perms, 0, 0); -} -EXPORT_SYMBOL_GPL(uv_bios_change_memprotect); - -s64 -uv_bios_reserved_page_pa(u64 buf, u64 *cookie, u64 *addr, u64 *len) -{ - s64 ret; - - ret = uv_bios_call_irqsave(UV_BIOS_GET_PARTITION_ADDR, (u64)cookie, - (u64)addr, buf, (u64)len, 0); - return ret; -} -EXPORT_SYMBOL_GPL(uv_bios_reserved_page_pa); - -s64 uv_bios_freq_base(u64 clock_type, u64 *ticks_per_second) -{ - return uv_bios_call(UV_BIOS_FREQ_BASE, clock_type, - (u64)ticks_per_second, 0, 0, 0); -} -EXPORT_SYMBOL_GPL(uv_bios_freq_base); - -/* - * uv_bios_set_legacy_vga_target - Set Legacy VGA I/O Target - * @decode: true to enable target, false to disable target - * @domain: PCI domain number - * @bus: PCI bus number - * - * Returns: - * 0: Success - * -EINVAL: Invalid domain or bus number - * -ENOSYS: Capability not available - * -EBUSY: Legacy VGA I/O cannot be retargeted at this time - */ -int uv_bios_set_legacy_vga_target(bool decode, int domain, int bus) -{ - return uv_bios_call(UV_BIOS_SET_LEGACY_VGA_TARGET, - (u64)decode, (u64)domain, (u64)bus, 0, 0); -} -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; - 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); - - printk(KERN_INFO "EFI UV System Table Revision %d\n", - uv_systab.revision); -} -#else /* !CONFIG_EFI */ - -void uv_bios_init(void) { } -#endif |