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Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6

Browse Source 
* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6:
  [IA64] fix personality(PER_LINUX32) performance issue
  [IA64] Properly unregister legacy interrupts
  [IA64] Remove NULL pointer check for argument never passed as NULL.
  [IA64] trivial cleanup for perfmon.c
  [IA64] trivial cleanup for entry.S
  [IA64] fix interrupt masking for pending works on kernel leave
  [IA64] allow user to force_pal_cache_flush
  [IA64] Don't reserve crashkernel memory > 4 GB
  [IA64] machvec support for SGI UV platform
  [IA64] Add header files for SGI UV platform
This commit is contained in:
Linus Torvalds 2008-05-15 13:56:42 -07:00
commit 7371fd11a6
20 changed files with 878 additions and 38 deletions
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6
Documentation/kernel-parameters.txt
View File

@ -686,6 +686,12 @@ and is between 256 and 4096 characters. It is defined in the file
floppy= [HW]
See Documentation/floppy.txt.
force_pal_cache_flush
[IA-64] Avoid check_sal_cache_flush which may hang on
buggy SAL_CACHE_FLUSH implementations. Using this
parameter will force ia64_sal_cache_flush to call
ia64_pal_cache_flush instead of SAL_CACHE_FLUSH.
gamecon.map[2|3]=
[HW,JOY] Multisystem joystick and NES/SNES/PSX pad
support via parallel port (up to 5 devices per port)

13
arch/ia64/Kconfig
View File

@ -135,6 +135,7 @@ config IA64_GENERIC
HP-zx1/sx1000 For HP systems
HP-zx1/sx1000+swiotlb For HP systems with (broken) DMA-constrained devices.
SGI-SN2 For SGI Altix systems
SGI-UV For SGI UV systems
Ski-simulator For the HP simulator <http://www.hpl.hp.com/research/linux/ski/>
If you don't know what to do, choose "generic".
@ -170,6 +171,18 @@ config IA64_SGI_SN2
to select this option. If in doubt, select ia64 generic support
instead.
config IA64_SGI_UV`
bool "SGI-UV`"
select NUMA
select ACPI_NUMA
select SWIOTLB
help
Selecting this option will optimize the kernel for use on UV based
systems, but the resulting kernel binary will not run on other
types of ia64 systems. If you have an SGI UV system, it's safe
to select this option. If in doubt, select ia64 generic support
instead.
config IA64_HP_SIM
bool "Ski-simulator"
select SWIOTLB

2
arch/ia64/Makefile
View File

@ -63,7 +63,7 @@ drivers-$(CONFIG_PCI) += arch/ia64/pci/
drivers-$(CONFIG_IA64_HP_SIM) += arch/ia64/hp/sim/
drivers-$(CONFIG_IA64_HP_ZX1) += arch/ia64/hp/common/ arch/ia64/hp/zx1/
drivers-$(CONFIG_IA64_HP_ZX1_SWIOTLB) += arch/ia64/hp/common/ arch/ia64/hp/zx1/
drivers-$(CONFIG_IA64_GENERIC) += arch/ia64/hp/common/ arch/ia64/hp/zx1/ arch/ia64/hp/sim/ arch/ia64/sn/
drivers-$(CONFIG_IA64_GENERIC) += arch/ia64/hp/common/ arch/ia64/hp/zx1/ arch/ia64/hp/sim/ arch/ia64/sn/ arch/ia64/uv/
drivers-$(CONFIG_OPROFILE) += arch/ia64/oprofile/
boot := arch/ia64/hp/sim/boot

10
arch/ia64/ia32/ia32_support.c
View File

@ -15,7 +15,6 @@
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/mm.h>
#include <linux/personality.h>
#include <linux/sched.h>
#include <asm/intrinsics.h>
@ -29,7 +28,6 @@
extern int die_if_kernel (char *str, struct pt_regs *regs, long err);
struct exec_domain ia32_exec_domain;
struct page *ia32_shared_page[NR_CPUS];
unsigned long *ia32_boot_gdt;
unsigned long *cpu_gdt_table[NR_CPUS];
@ -240,14 +238,6 @@ ia32_cpu_init (void)
static int __init
ia32_init (void)
{
ia32_exec_domain.name = "Linux/x86";
ia32_exec_domain.handler = NULL;
ia32_exec_domain.pers_low = PER_LINUX32;
ia32_exec_domain.pers_high = PER_LINUX32;
ia32_exec_domain.signal_map = default_exec_domain.signal_map;
ia32_exec_domain.signal_invmap = default_exec_domain.signal_invmap;
register_exec_domain(&ia32_exec_domain);
#if PAGE_SHIFT > IA32_PAGE_SHIFT
{
extern struct kmem_cache *ia64_partial_page_cachep;

10
arch/ia64/kernel/acpi.c
View File

@ -117,7 +117,10 @@ acpi_get_sysname(void)
if (!strcmp(hdr->oem_id, "HP")) {
return "hpzx1";
} else if (!strcmp(hdr->oem_id, "SGI")) {
return "sn2";
if (!strcmp(hdr->oem_table_id + 4, "UV"))
return "uv";
else
return "sn2";
}
return "dig";
@ -130,6 +133,8 @@ acpi_get_sysname(void)
return "hpzx1_swiotlb";
# elif defined (CONFIG_IA64_SGI_SN2)
return "sn2";
# elif defined (CONFIG_IA64_SGI_UV)
return "uv";
# elif defined (CONFIG_IA64_DIG)
return "dig";
# else
@ -622,6 +627,9 @@ void acpi_unregister_gsi(u32 gsi)
if (acpi_irq_model == ACPI_IRQ_MODEL_PLATFORM)
return;
if (has_8259 && gsi < 16)
return;
iosapic_unregister_intr(gsi);
}

26
arch/ia64/kernel/entry.S
View File

@ -1156,6 +1156,9 @@ skip_rbs_switch:
* r31 = current->thread_info->flags
* On exit:
* p6 = TRUE if work-pending-check needs to be redone
*
* Interrupts are disabled on entry, reenabled depend on work, and
* disabled on exit.
*/
.work_pending_syscall:
add r2=-8,r2
@ -1164,16 +1167,16 @@ skip_rbs_switch:
st8 [r2]=r8
st8 [r3]=r10
.work_pending:
tbit.z p6,p0=r31,TIF_NEED_RESCHED // current_thread_info()->need_resched==0?
tbit.z p6,p0=r31,TIF_NEED_RESCHED // is resched not needed?
(p6) br.cond.sptk.few .notify
#ifdef CONFIG_PREEMPT
(pKStk) dep r21=-1,r0,PREEMPT_ACTIVE_BIT,1
;;
(pKStk) st4 [r20]=r21
ssm psr.i // enable interrupts
#endif
ssm psr.i // enable interrupts
br.call.spnt.many rp=schedule
.ret9: cmp.eq p6,p0=r0,r0 // p6 <- 1
.ret9: cmp.eq p6,p0=r0,r0 // p6 <- 1 (re-check)
rsm psr.i // disable interrupts
;;
#ifdef CONFIG_PREEMPT
@ -1182,13 +1185,13 @@ skip_rbs_switch:
(pKStk) st4 [r20]=r0 // preempt_count() <- 0
#endif
(pLvSys)br.cond.sptk.few .work_pending_syscall_end
br.cond.sptk.many .work_processed_kernel // re-check
br.cond.sptk.many .work_processed_kernel
.notify:
(pUStk) br.call.spnt.many rp=notify_resume_user
.ret10: cmp.ne p6,p0=r0,r0 // p6 <- 0
.ret10: cmp.ne p6,p0=r0,r0 // p6 <- 0 (don't re-check)
(pLvSys)br.cond.sptk.few .work_pending_syscall_end
br.cond.sptk.many .work_processed_kernel // don't re-check
br.cond.sptk.many .work_processed_kernel
.work_pending_syscall_end:
adds r2=PT(R8)+16,r12
@ -1196,7 +1199,7 @@ skip_rbs_switch:
;;
ld8 r8=[r2]
ld8 r10=[r3]
br.cond.sptk.many .work_processed_syscall // re-check
br.cond.sptk.many .work_processed_syscall
END(ia64_leave_kernel)
@ -1234,9 +1237,12 @@ GLOBAL_ENTRY(ia64_invoke_schedule_tail)
END(ia64_invoke_schedule_tail)
/*
* Setup stack and call do_notify_resume_user(). Note that pSys and pNonSys need to
* be set up by the caller. We declare 8 input registers so the system call
* args get preserved, in case we need to restart a system call.
* Setup stack and call do_notify_resume_user(), keeping interrupts
* disabled.
*
* Note that pSys and pNonSys need to be set up by the caller.
* We declare 8 input registers so the system call args get preserved,
* in case we need to restart a system call.
*/
ENTRY(notify_resume_user)
.prologue ASM_UNW_PRLG_RP|ASM_UNW_PRLG_PFS, ASM_UNW_PRLG_GRSAVE(8)

6
arch/ia64/kernel/palinfo.c
View File

@ -900,12 +900,6 @@ static void
palinfo_smp_call(void *info)
{
palinfo_smp_data_t *data = (palinfo_smp_data_t *)info;
if (data == NULL) {
printk(KERN_ERR "palinfo: data pointer is NULL\n");
data->ret = 0; /* no output */
return;
}
/* does this actual call */
data->ret = (*data->func)(data->page);
}

16
arch/ia64/kernel/perfmon.c
View File

@ -5013,12 +5013,13 @@ pfm_context_force_terminate(pfm_context_t *ctx, struct pt_regs *regs)
}
static int pfm_ovfl_notify_user(pfm_context_t *ctx, unsigned long ovfl_pmds);
/*
* pfm_handle_work() can be called with interrupts enabled
* (TIF_NEED_RESCHED) or disabled. The down_interruptible
* call may sleep, therefore we must re-enable interrupts
* to avoid deadlocks. It is safe to do so because this function
* is called ONLY when returning to user level (PUStk=1), in which case
* is called ONLY when returning to user level (pUStk=1), in which case
* there is no risk of kernel stack overflow due to deep
* interrupt nesting.
*/
@ -5034,7 +5035,8 @@ pfm_handle_work(void)
ctx = PFM_GET_CTX(current);
if (ctx == NULL) {
printk(KERN_ERR "perfmon: [%d] has no PFM context\n", task_pid_nr(current));
printk(KERN_ERR "perfmon: [%d] has no PFM context\n",
task_pid_nr(current));
return;
}
@ -5058,11 +5060,12 @@ pfm_handle_work(void)
/*
* must be done before we check for simple-reset mode
*/
if (ctx->ctx_fl_going_zombie || ctx->ctx_state == PFM_CTX_ZOMBIE) goto do_zombie;
if (ctx->ctx_fl_going_zombie || ctx->ctx_state == PFM_CTX_ZOMBIE)
goto do_zombie;
//if (CTX_OVFL_NOBLOCK(ctx)) goto skip_blocking;
if (reason == PFM_TRAP_REASON_RESET) goto skip_blocking;
if (reason == PFM_TRAP_REASON_RESET)
goto skip_blocking;
/*
* restore interrupt mask to what it was on entry.
@ -5110,7 +5113,8 @@ do_zombie:
/*
* in case of interruption of down() we don't restart anything
*/
if (ret < 0) goto nothing_to_do;
if (ret < 0)
goto nothing_to_do;
skip_blocking:
pfm_resume_after_ovfl(ctx, ovfl_regs, regs);

25
arch/ia64/kernel/process.c
View File

@ -167,11 +167,18 @@ void tsk_clear_notify_resume(struct task_struct *tsk)
clear_ti_thread_flag(task_thread_info(tsk), TIF_NOTIFY_RESUME);
}
/*
* do_notify_resume_user():
* Called from notify_resume_user at entry.S, with interrupts disabled.
*/
void
do_notify_resume_user (sigset_t *unused, struct sigscratch *scr, long in_syscall)
do_notify_resume_user(sigset_t *unused, struct sigscratch *scr, long in_syscall)
{
if (fsys_mode(current, &scr->pt)) {
/* defer signal-handling etc. until we return to privilege-level 0. */
/*
* defer signal-handling etc. until we return to
* privilege-level 0.
*/
if (!ia64_psr(&scr->pt)->lp)
ia64_psr(&scr->pt)->lp = 1;
return;
@ -179,16 +186,26 @@ do_notify_resume_user (sigset_t *unused, struct sigscratch *scr, long in_syscall
#ifdef CONFIG_PERFMON
if (current->thread.pfm_needs_checking)
/*
* Note: pfm_handle_work() allow us to call it with interrupts
* disabled, and may enable interrupts within the function.
*/
pfm_handle_work();
#endif
/* deal with pending signal delivery */
if (test_thread_flag(TIF_SIGPENDING))
if (test_thread_flag(TIF_SIGPENDING)) {
local_irq_enable(); /* force interrupt enable */
ia64_do_signal(scr, in_syscall);
}
/* copy user rbs to kernel rbs */
if (unlikely(test_thread_flag(TIF_RESTORE_RSE)))
if (unlikely(test_thread_flag(TIF_RESTORE_RSE))) {
local_irq_enable(); /* force interrupt enable */
ia64_sync_krbs();
}
local_irq_disable(); /* force interrupt disable */
}
static int pal_halt = 1;

11
arch/ia64/kernel/sal.c
View File

@ -229,6 +229,14 @@ static void __init sal_desc_ap_wakeup(void *p) { }
*/
static int sal_cache_flush_drops_interrupts;
static int __init
force_pal_cache_flush(char *str)
{
sal_cache_flush_drops_interrupts = 1;
return 0;
}
early_param("force_pal_cache_flush", force_pal_cache_flush);
void __init
check_sal_cache_flush (void)
{
@ -237,6 +245,9 @@ check_sal_cache_flush (void)
u64 vector, cache_type = 3;
struct ia64_sal_retval isrv;
if (sal_cache_flush_drops_interrupts)
return;
cpu = get_cpu();
local_irq_save(flags);

29
arch/ia64/kernel/setup.c
View File

@ -239,6 +239,25 @@ __initcall(register_memory);
#ifdef CONFIG_KEXEC
/*
* This function checks if the reserved crashkernel is allowed on the specific
* IA64 machine flavour. Machines without an IO TLB use swiotlb and require
* some memory below 4 GB (i.e. in 32 bit area), see the implementation of
* lib/swiotlb.c. The hpzx1 architecture has an IO TLB but cannot use that
* in kdump case. See the comment in sba_init() in sba_iommu.c.
*
* So, the only machvec that really supports loading the kdump kernel
* over 4 GB is "sn2".
*/
static int __init check_crashkernel_memory(unsigned long pbase, size_t size)
{
if (ia64_platform_is("sn2") || ia64_platform_is("uv"))
return 1;
else
return pbase < (1UL << 32);
}
static void __init setup_crashkernel(unsigned long total, int *n)
{
unsigned long long base = 0, size = 0;
@ -252,6 +271,16 @@ static void __init setup_crashkernel(unsigned long total, int *n)
base = kdump_find_rsvd_region(size,
rsvd_region, *n);
}
if (!check_crashkernel_memory(base, size)) {
pr_warning("crashkernel: There would be kdump memory "
"at %ld GB but this is unusable because it "
"must\nbe below 4 GB. Change the memory "
"configuration of the machine.\n",
(unsigned long)(base >> 30));
return;
}
if (base != ~0UL) {
printk(KERN_INFO "Reserving %ldMB of memory at %ldMB "
"for crashkernel (System RAM: %ldMB)\n",

25
arch/ia64/mm/init.c
View File

@ -719,3 +719,28 @@ out:
EXPORT_SYMBOL_GPL(remove_memory);
#endif /* CONFIG_MEMORY_HOTREMOVE */
#endif
/*
* Even when CONFIG_IA32_SUPPORT is not enabled it is
* useful to have the Linux/x86 domain registered to
* avoid an attempted module load when emulators call
* personality(PER_LINUX32). This saves several milliseconds
* on each such call.
*/
static struct exec_domain ia32_exec_domain;
static int __init
per_linux32_init(void)
{
ia32_exec_domain.name = "Linux/x86";
ia32_exec_domain.handler = NULL;
ia32_exec_domain.pers_low = PER_LINUX32;
ia32_exec_domain.pers_high = PER_LINUX32;
ia32_exec_domain.signal_map = default_exec_domain.signal_map;
ia32_exec_domain.signal_invmap = default_exec_domain.signal_invmap;
register_exec_domain(&ia32_exec_domain);
return 0;
}
__initcall(per_linux32_init);

12
arch/ia64/uv/Makefile Normal file
View File

@ -0,0 +1,12 @@
# arch/ia64/uv/Makefile
#
# This file is subject to the terms and conditions of the GNU General Public
# License. See the file "COPYING" in the main directory of this archive
# for more details.
#
# Copyright (C) 2008 Silicon Graphics, Inc. All Rights Reserved.
#
# Makefile for the sn uv subplatform
#
obj-y += kernel/

13
arch/ia64/uv/kernel/Makefile Normal file
View File

@ -0,0 +1,13 @@
# arch/ia64/uv/kernel/Makefile
#
# This file is subject to the terms and conditions of the GNU General Public
# License. See the file "COPYING" in the main directory of this archive
# for more details.
#
# Copyright (C) 2008 Silicon Graphics, Inc. All Rights Reserved.
#
EXTRA_CFLAGS += -Iarch/ia64/sn/include
obj-y += setup.o
obj-$(CONFIG_IA64_GENERIC) += machvec.o

11
arch/ia64/uv/kernel/machvec.c Normal file
View File

@ -0,0 +1,11 @@
/*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*
* Copyright (c) 2008 Silicon Graphics, Inc. All Rights Reserved.
*/
#define MACHVEC_PLATFORM_NAME uv
#define MACHVEC_PLATFORM_HEADER <asm/machvec_uv.h>
#include <asm/machvec_init.h>

98
arch/ia64/uv/kernel/setup.c Normal file
View File

@ -0,0 +1,98 @@
/*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*
* SGI UV Core Functions
*
* Copyright (C) 2008 Silicon Graphics, Inc. All rights reserved.
*/
#include <linux/module.h>
#include <linux/percpu.h>
#include <asm/sn/simulator.h>
#include <asm/uv/uv_mmrs.h>
#include <asm/uv/uv_hub.h>
DEFINE_PER_CPU(struct uv_hub_info_s, __uv_hub_info);
EXPORT_PER_CPU_SYMBOL_GPL(__uv_hub_info);
struct redir_addr {
unsigned long redirect;
unsigned long alias;
};
#define DEST_SHIFT UVH_RH_GAM_ALIAS210_REDIRECT_CONFIG_0_MMR_DEST_BASE_SHFT
static __initdata struct redir_addr redir_addrs[] = {
{UVH_RH_GAM_ALIAS210_REDIRECT_CONFIG_0_MMR, UVH_SI_ALIAS0_OVERLAY_CONFIG},
{UVH_RH_GAM_ALIAS210_REDIRECT_CONFIG_1_MMR, UVH_SI_ALIAS1_OVERLAY_CONFIG},
{UVH_RH_GAM_ALIAS210_REDIRECT_CONFIG_2_MMR, UVH_SI_ALIAS2_OVERLAY_CONFIG},
};
static __init void get_lowmem_redirect(unsigned long *base, unsigned long *size)
{
union uvh_si_alias0_overlay_config_u alias;
union uvh_rh_gam_alias210_redirect_config_2_mmr_u redirect;
int i;
for (i = 0; i < ARRAY_SIZE(redir_addrs); i++) {
alias.v = uv_read_local_mmr(redir_addrs[i].alias);
if (alias.s.base == 0) {
*size = (1UL << alias.s.m_alias);
redirect.v = uv_read_local_mmr(redir_addrs[i].redirect);
*base = (unsigned long)redirect.s.dest_base << DEST_SHIFT;
return;
}
}
BUG();
}
void __init uv_setup(char **cmdline_p)
{
union uvh_si_addr_map_config_u m_n_config;
union uvh_node_id_u node_id;
unsigned long gnode_upper;
int nid, cpu, m_val, n_val;
unsigned long mmr_base, lowmem_redir_base, lowmem_redir_size;
if (IS_MEDUSA()) {
lowmem_redir_base = 0;
lowmem_redir_size = 0;
node_id.v = 0;
m_n_config.s.m_skt = 37;
m_n_config.s.n_skt = 0;
mmr_base = 0;
} else {
get_lowmem_redirect(&lowmem_redir_base, &lowmem_redir_size);
node_id.v = uv_read_local_mmr(UVH_NODE_ID);
m_n_config.v = uv_read_local_mmr(UVH_SI_ADDR_MAP_CONFIG);
mmr_base =
uv_read_local_mmr(UVH_RH_GAM_MMR_OVERLAY_CONFIG_MMR) &
~UV_MMR_ENABLE;
}
m_val = m_n_config.s.m_skt;
n_val = m_n_config.s.n_skt;
printk(KERN_DEBUG "UV: global MMR base 0x%lx\n", mmr_base);
gnode_upper = (((unsigned long)node_id.s.node_id) &
~((1 << n_val) - 1)) << m_val;
for_each_present_cpu(cpu) {
nid = cpu_to_node(cpu);
uv_cpu_hub_info(cpu)->lowmem_remap_base = lowmem_redir_base;
uv_cpu_hub_info(cpu)->lowmem_remap_top =
lowmem_redir_base + lowmem_redir_size;
uv_cpu_hub_info(cpu)->m_val = m_val;
uv_cpu_hub_info(cpu)->n_val = m_val;
uv_cpu_hub_info(cpu)->pnode_mask = (1 << n_val) -1;
uv_cpu_hub_info(cpu)->gpa_mask = (1 << (m_val + n_val)) - 1;
uv_cpu_hub_info(cpu)->gnode_upper = gnode_upper;
uv_cpu_hub_info(cpu)->global_mmr_base = mmr_base;
uv_cpu_hub_info(cpu)->coherency_domain_number = 0;/* ZZZ */
printk(KERN_DEBUG "UV cpu %d, nid %d\n", cpu, nid);
}
}

2
include/asm-ia64/machvec.h
View File

@ -126,6 +126,8 @@ extern void machvec_tlb_migrate_finish (struct mm_struct *);
# include <asm/machvec_hpzx1_swiotlb.h>
# elif defined (CONFIG_IA64_SGI_SN2)
# include <asm/machvec_sn2.h>
# elif defined (CONFIG_IA64_SGI_UV)
# include <asm/machvec_uv.h>
# elif defined (CONFIG_IA64_GENERIC)
# ifdef MACHVEC_PLATFORM_HEADER

26
include/asm-ia64/machvec_uv.h Normal file
View File

@ -0,0 +1,26 @@
/*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*
* SGI UV Core Functions
*
* Copyright (C) 2008 Silicon Graphics, Inc. All rights reserved.
*/
#ifndef _ASM_IA64_MACHVEC_UV_H
#define _ASM_IA64_MACHVEC_UV_H
extern ia64_mv_setup_t uv_setup;
/*
* This stuff has dual use!
*
* For a generic kernel, the macros are used to initialize the
* platform's machvec structure. When compiling a non-generic kernel,
* the macros are used directly.
*/
#define platform_name "uv"
#define platform_setup uv_setup
#endif /* _ASM_IA64_MACHVEC_UV_H */

309
include/asm-ia64/uv/uv_hub.h Normal file
View File

@ -0,0 +1,309 @@
/*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*
* SGI UV architectural definitions
*
* Copyright (C) 2008 Silicon Graphics, Inc. All rights reserved.
*/
#ifndef __ASM_IA64_UV_HUB_H__
#define __ASM_IA64_UV_HUB_H__
#include <linux/numa.h>
#include <linux/percpu.h>
#include <asm/types.h>
#include <asm/percpu.h>
/*
* Addressing Terminology
*
* M - The low M bits of a physical address represent the offset
* into the blade local memory. RAM memory on a blade is physically
* contiguous (although various IO spaces may punch holes in
* it)..
*
* N - Number of bits in the node portion of a socket physical
* address.
*
* NASID - network ID of a router, Mbrick or Cbrick. Nasid values of
* routers always have low bit of 1, C/MBricks have low bit
* equal to 0. Most addressing macros that target UV hub chips
* right shift the NASID by 1 to exclude the always-zero bit.
* NASIDs contain up to 15 bits.
*
* GNODE - NASID right shifted by 1 bit. Most mmrs contain gnodes instead
* of nasids.
*
* PNODE - the low N bits of the GNODE. The PNODE is the most useful variant
* of the nasid for socket usage.
*
*
* NumaLink Global Physical Address Format:
* +--------------------------------+---------------------+
* |00..000| GNODE | NodeOffset |
* +--------------------------------+---------------------+
* |<-------53 - M bits --->|<--------M bits ----->
*
* M - number of node offset bits (35 .. 40)
*
*
* Memory/UV-HUB Processor Socket Address Format:
* +----------------+---------------+---------------------+
* |00..000000000000| PNODE | NodeOffset |
* +----------------+---------------+---------------------+
* <--- N bits --->|<--------M bits ----->
*
* M - number of node offset bits (35 .. 40)
* N - number of PNODE bits (0 .. 10)
*
* Note: M + N cannot currently exceed 44 (x86_64) or 46 (IA64).
* The actual values are configuration dependent and are set at
* boot time. M & N values are set by the hardware/BIOS at boot.
*/
/*
* Maximum number of bricks in all partitions and in all coherency domains.
* This is the total number of bricks accessible in the numalink fabric. It
* includes all C & M bricks. Routers are NOT included.
*
* This value is also the value of the maximum number of non-router NASIDs
* in the numalink fabric.
*
* NOTE: a brick may contain 1 or 2 OS nodes. Don't get these confused.
*/
#define UV_MAX_NUMALINK_BLADES 16384
/*
* Maximum number of C/Mbricks within a software SSI (hardware may support
* more).
*/
#define UV_MAX_SSI_BLADES 1
/*
* The largest possible NASID of a C or M brick (+ 2)
*/
#define UV_MAX_NASID_VALUE (UV_MAX_NUMALINK_NODES * 2)
/*
* The following defines attributes of the HUB chip. These attributes are
* frequently referenced and are kept in the per-cpu data areas of each cpu.
* They are kept together in a struct to minimize cache misses.
*/
struct uv_hub_info_s {
unsigned long global_mmr_base;
unsigned long gpa_mask;
unsigned long gnode_upper;
unsigned long lowmem_remap_top;
unsigned long lowmem_remap_base;
unsigned short pnode;
unsigned short pnode_mask;
unsigned short coherency_domain_number;
unsigned short numa_blade_id;
unsigned char blade_processor_id;
unsigned char m_val;
unsigned char n_val;
};
DECLARE_PER_CPU(struct uv_hub_info_s, __uv_hub_info);
#define uv_hub_info (&__get_cpu_var(__uv_hub_info))
#define uv_cpu_hub_info(cpu) (&per_cpu(__uv_hub_info, cpu))
/*
* Local & Global MMR space macros.
* Note: macros are intended to be used ONLY by inline functions
* in this file - not by other kernel code.
* n - NASID (full 15-bit global nasid)
* g - GNODE (full 15-bit global nasid, right shifted 1)
* p - PNODE (local part of nsids, right shifted 1)
*/
#define UV_NASID_TO_PNODE(n) (((n) >> 1) & uv_hub_info->pnode_mask)
#define UV_PNODE_TO_NASID(p) (((p) << 1) | uv_hub_info->gnode_upper)
#define UV_LOCAL_MMR_BASE 0xf4000000UL
#define UV_GLOBAL_MMR32_BASE 0xf8000000UL
#define UV_GLOBAL_MMR64_BASE (uv_hub_info->global_mmr_base)
#define UV_GLOBAL_MMR32_PNODE_SHIFT 15
#define UV_GLOBAL_MMR64_PNODE_SHIFT 26
#define UV_GLOBAL_MMR32_PNODE_BITS(p) ((p) << (UV_GLOBAL_MMR32_PNODE_SHIFT))
#define UV_GLOBAL_MMR64_PNODE_BITS(p) \
((unsigned long)(p) << UV_GLOBAL_MMR64_PNODE_SHIFT)
/*
* Macros for converting between kernel virtual addresses, socket local physical
* addresses, and UV global physical addresses.
* Note: use the standard __pa() & __va() macros for converting
* between socket virtual and socket physical addresses.
*/
/* socket phys RAM --> UV global physical address */
static inline unsigned long uv_soc_phys_ram_to_gpa(unsigned long paddr)
{
if (paddr < uv_hub_info->lowmem_remap_top)
paddr += uv_hub_info->lowmem_remap_base;
return paddr | uv_hub_info->gnode_upper;
}
/* socket virtual --> UV global physical address */
static inline unsigned long uv_gpa(void *v)
{
return __pa(v) | uv_hub_info->gnode_upper;
}
/* socket virtual --> UV global physical address */
static inline void *uv_vgpa(void *v)
{
return (void *)uv_gpa(v);
}
/* UV global physical address --> socket virtual */
static inline void *uv_va(unsigned long gpa)
{
return __va(gpa & uv_hub_info->gpa_mask);
}
/* pnode, offset --> socket virtual */
static inline void *uv_pnode_offset_to_vaddr(int pnode, unsigned long offset)
{
return __va(((unsigned long)pnode << uv_hub_info->m_val) | offset);
}
/*
* Access global MMRs using the low memory MMR32 space. This region supports
* faster MMR access but not all MMRs are accessible in this space.
*/
static inline unsigned long *uv_global_mmr32_address(int pnode,
unsigned long offset)
{
return __va(UV_GLOBAL_MMR32_BASE |
UV_GLOBAL_MMR32_PNODE_BITS(pnode) | offset);
}
static inline void uv_write_global_mmr32(int pnode, unsigned long offset,
unsigned long val)
{
*uv_global_mmr32_address(pnode, offset) = val;
}
static inline unsigned long uv_read_global_mmr32(int pnode,
unsigned long offset)
{
return *uv_global_mmr32_address(pnode, offset);
}
/*
* Access Global MMR space using the MMR space located at the top of physical
* memory.
*/
static inline unsigned long *uv_global_mmr64_address(int pnode,
unsigned long offset)
{
return __va(UV_GLOBAL_MMR64_BASE |
UV_GLOBAL_MMR64_PNODE_BITS(pnode) | offset);
}
static inline void uv_write_global_mmr64(int pnode, unsigned long offset,
unsigned long val)
{
*uv_global_mmr64_address(pnode, offset) = val;
}
static inline unsigned long uv_read_global_mmr64(int pnode,
unsigned long offset)
{
return *uv_global_mmr64_address(pnode, offset);
}
/*
* Access hub local MMRs. Faster than using global space but only local MMRs
* are accessible.
*/
static inline unsigned long *uv_local_mmr_address(unsigned long offset)
{
return __va(UV_LOCAL_MMR_BASE | offset);
}
static inline unsigned long uv_read_local_mmr(unsigned long offset)
{
return *uv_local_mmr_address(offset);
}
static inline void uv_write_local_mmr(unsigned long offset, unsigned long val)
{
*uv_local_mmr_address(offset) = val;
}
/*
* Structures and definitions for converting between cpu, node, pnode, and blade
* numbers.
*/
/* Blade-local cpu number of current cpu. Numbered 0 .. <# cpus on the blade> */
static inline int uv_blade_processor_id(void)
{
return smp_processor_id();
}
/* Blade number of current cpu. Numnbered 0 .. <#blades -1> */
static inline int uv_numa_blade_id(void)
{
return 0;
}
/* Convert a cpu number to the the UV blade number */
static inline int uv_cpu_to_blade_id(int cpu)
{
return 0;
}
/* Convert linux node number to the UV blade number */
static inline int uv_node_to_blade_id(int nid)
{
return 0;
}
/* Convert a blade id to the PNODE of the blade */
static inline int uv_blade_to_pnode(int bid)
{
return 0;
}
/* Determine the number of possible cpus on a blade */
static inline int uv_blade_nr_possible_cpus(int bid)
{
return num_possible_cpus();
}
/* Determine the number of online cpus on a blade */
static inline int uv_blade_nr_online_cpus(int bid)
{
return num_online_cpus();
}
/* Convert a cpu id to the PNODE of the blade containing the cpu */
static inline int uv_cpu_to_pnode(int cpu)
{
return 0;
}
/* Convert a linux node number to the PNODE of the blade */
static inline int uv_node_to_pnode(int nid)
{
return 0;
}
/* Maximum possible number of blades */
static inline int uv_num_possible_blades(void)
{
return 1;
}
#endif /* __ASM_IA64_UV_HUB__ */

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/*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*
* SGI UV MMR definitions
*
* Copyright (C) 2007-2008 Silicon Graphics, Inc. All rights reserved.
*/
#ifndef __ASM_IA64_UV_MMRS__
#define __ASM_IA64_UV_MMRS__
/*
* AUTO GENERATED - Do not edit
*/
#define UV_MMR_ENABLE (1UL << 63)
/* ========================================================================= */
/* UVH_NODE_ID */
/* ========================================================================= */
#define UVH_NODE_ID 0x0UL
#define UVH_NODE_ID_FORCE1_SHFT 0
#define UVH_NODE_ID_FORCE1_MASK 0x0000000000000001UL
#define UVH_NODE_ID_MANUFACTURER_SHFT 1
#define UVH_NODE_ID_MANUFACTURER_MASK 0x0000000000000ffeUL
#define UVH_NODE_ID_PART_NUMBER_SHFT 12
#define UVH_NODE_ID_PART_NUMBER_MASK 0x000000000ffff000UL
#define UVH_NODE_ID_REVISION_SHFT 28
#define UVH_NODE_ID_REVISION_MASK 0x00000000f0000000UL
#define UVH_NODE_ID_NODE_ID_SHFT 32
#define UVH_NODE_ID_NODE_ID_MASK 0x00007fff00000000UL
#define UVH_NODE_ID_NODES_PER_BIT_SHFT 48
#define UVH_NODE_ID_NODES_PER_BIT_MASK 0x007f000000000000UL
#define UVH_NODE_ID_NI_PORT_SHFT 56
#define UVH_NODE_ID_NI_PORT_MASK 0x0f00000000000000UL
union uvh_node_id_u {
unsigned long v;
struct uvh_node_id_s {
unsigned long force1 : 1; /* RO */
unsigned long manufacturer : 11; /* RO */
unsigned long part_number : 16; /* RO */
unsigned long revision : 4; /* RO */
unsigned long node_id : 15; /* RW */
unsigned long rsvd_47 : 1; /* */
unsigned long nodes_per_bit : 7; /* RW */
unsigned long rsvd_55 : 1; /* */
unsigned long ni_port : 4; /* RO */
unsigned long rsvd_60_63 : 4; /* */
} s;
};
/* ========================================================================= */
/* UVH_RH_GAM_ALIAS210_REDIRECT_CONFIG_0_MMR */
/* ========================================================================= */
#define UVH_RH_GAM_ALIAS210_REDIRECT_CONFIG_0_MMR 0x16000d0UL
#define UVH_RH_GAM_ALIAS210_REDIRECT_CONFIG_0_MMR_DEST_BASE_SHFT 24
#define UVH_RH_GAM_ALIAS210_REDIRECT_CONFIG_0_MMR_DEST_BASE_MASK 0x00003fffff000000UL
union uvh_rh_gam_alias210_redirect_config_0_mmr_u {
unsigned long v;
struct uvh_rh_gam_alias210_redirect_config_0_mmr_s {
unsigned long rsvd_0_23 : 24; /* */
unsigned long dest_base : 22; /* RW */
unsigned long rsvd_46_63: 18; /* */
} s;
};
/* ========================================================================= */
/* UVH_RH_GAM_ALIAS210_REDIRECT_CONFIG_1_MMR */
/* ========================================================================= */
#define UVH_RH_GAM_ALIAS210_REDIRECT_CONFIG_1_MMR 0x16000e0UL
#define UVH_RH_GAM_ALIAS210_REDIRECT_CONFIG_1_MMR_DEST_BASE_SHFT 24
#define UVH_RH_GAM_ALIAS210_REDIRECT_CONFIG_1_MMR_DEST_BASE_MASK 0x00003fffff000000UL
union uvh_rh_gam_alias210_redirect_config_1_mmr_u {
unsigned long v;
struct uvh_rh_gam_alias210_redirect_config_1_mmr_s {
unsigned long rsvd_0_23 : 24; /* */
unsigned long dest_base : 22; /* RW */
unsigned long rsvd_46_63: 18; /* */
} s;
};
/* ========================================================================= */
/* UVH_RH_GAM_ALIAS210_REDIRECT_CONFIG_2_MMR */
/* ========================================================================= */
#define UVH_RH_GAM_ALIAS210_REDIRECT_CONFIG_2_MMR 0x16000f0UL
#define UVH_RH_GAM_ALIAS210_REDIRECT_CONFIG_2_MMR_DEST_BASE_SHFT 24
#define UVH_RH_GAM_ALIAS210_REDIRECT_CONFIG_2_MMR_DEST_BASE_MASK 0x00003fffff000000UL
union uvh_rh_gam_alias210_redirect_config_2_mmr_u {
unsigned long v;
struct uvh_rh_gam_alias210_redirect_config_2_mmr_s {
unsigned long rsvd_0_23 : 24; /* */
unsigned long dest_base : 22; /* RW */
unsigned long rsvd_46_63: 18; /* */
} s;
};
/* ========================================================================= */
/* UVH_RH_GAM_GRU_OVERLAY_CONFIG_MMR */
/* ========================================================================= */
#define UVH_RH_GAM_GRU_OVERLAY_CONFIG_MMR 0x1600010UL
#define UVH_RH_GAM_GRU_OVERLAY_CONFIG_MMR_BASE_SHFT 28
#define UVH_RH_GAM_GRU_OVERLAY_CONFIG_MMR_BASE_MASK 0x00003ffff0000000UL
#define UVH_RH_GAM_GRU_OVERLAY_CONFIG_MMR_GR4_SHFT 46
#define UVH_RH_GAM_GRU_OVERLAY_CONFIG_MMR_GR4_MASK 0x0000400000000000UL
#define UVH_RH_GAM_GRU_OVERLAY_CONFIG_MMR_N_GRU_SHFT 52
#define UVH_RH_GAM_GRU_OVERLAY_CONFIG_MMR_N_GRU_MASK 0x00f0000000000000UL
#define UVH_RH_GAM_GRU_OVERLAY_CONFIG_MMR_ENABLE_SHFT 63
#define UVH_RH_GAM_GRU_OVERLAY_CONFIG_MMR_ENABLE_MASK 0x8000000000000000UL
union uvh_rh_gam_gru_overlay_config_mmr_u {
unsigned long v;
struct uvh_rh_gam_gru_overlay_config_mmr_s {
unsigned long rsvd_0_27: 28; /* */
unsigned long base : 18; /* RW */
unsigned long gr4 : 1; /* RW */
unsigned long rsvd_47_51: 5; /* */
unsigned long n_gru : 4; /* RW */
unsigned long rsvd_56_62: 7; /* */
unsigned long enable : 1; /* RW */
} s;
};
/* ========================================================================= */
/* UVH_RH_GAM_MMR_OVERLAY_CONFIG_MMR */
/* ========================================================================= */
#define UVH_RH_GAM_MMR_OVERLAY_CONFIG_MMR 0x1600028UL
#define UVH_RH_GAM_MMR_OVERLAY_CONFIG_MMR_BASE_SHFT 26
#define UVH_RH_GAM_MMR_OVERLAY_CONFIG_MMR_BASE_MASK 0x00003ffffc000000UL
#define UVH_RH_GAM_MMR_OVERLAY_CONFIG_MMR_DUAL_HUB_SHFT 46
#define UVH_RH_GAM_MMR_OVERLAY_CONFIG_MMR_DUAL_HUB_MASK 0x0000400000000000UL
#define UVH_RH_GAM_MMR_OVERLAY_CONFIG_MMR_ENABLE_SHFT 63
#define UVH_RH_GAM_MMR_OVERLAY_CONFIG_MMR_ENABLE_MASK 0x8000000000000000UL
union uvh_rh_gam_mmr_overlay_config_mmr_u {
unsigned long v;
struct uvh_rh_gam_mmr_overlay_config_mmr_s {
unsigned long rsvd_0_25: 26; /* */
unsigned long base : 20; /* RW */
unsigned long dual_hub : 1; /* RW */
unsigned long rsvd_47_62: 16; /* */
unsigned long enable : 1; /* RW */
} s;
};
/* ========================================================================= */
/* UVH_RTC */
/* ========================================================================= */
#define UVH_RTC 0x28000UL
#define UVH_RTC_REAL_TIME_CLOCK_SHFT 0
#define UVH_RTC_REAL_TIME_CLOCK_MASK 0x00ffffffffffffffUL
union uvh_rtc_u {
unsigned long v;
struct uvh_rtc_s {
unsigned long real_time_clock : 56; /* RW */
unsigned long rsvd_56_63 : 8; /* */
} s;
};
/* ========================================================================= */
/* UVH_SI_ADDR_MAP_CONFIG */
/* ========================================================================= */
#define UVH_SI_ADDR_MAP_CONFIG 0xc80000UL
#define UVH_SI_ADDR_MAP_CONFIG_M_SKT_SHFT 0
#define UVH_SI_ADDR_MAP_CONFIG_M_SKT_MASK 0x000000000000003fUL
#define UVH_SI_ADDR_MAP_CONFIG_N_SKT_SHFT 8
#define UVH_SI_ADDR_MAP_CONFIG_N_SKT_MASK 0x0000000000000f00UL
union uvh_si_addr_map_config_u {
unsigned long v;
struct uvh_si_addr_map_config_s {
unsigned long m_skt : 6; /* RW */
unsigned long rsvd_6_7: 2; /* */
unsigned long n_skt : 4; /* RW */
unsigned long rsvd_12_63: 52; /* */
} s;
};
/* ========================================================================= */
/* UVH_SI_ALIAS0_OVERLAY_CONFIG */
/* ========================================================================= */
#define UVH_SI_ALIAS0_OVERLAY_CONFIG 0xc80008UL
#define UVH_SI_ALIAS0_OVERLAY_CONFIG_BASE_SHFT 24
#define UVH_SI_ALIAS0_OVERLAY_CONFIG_BASE_MASK 0x00000000ff000000UL
#define UVH_SI_ALIAS0_OVERLAY_CONFIG_M_ALIAS_SHFT 48
#define UVH_SI_ALIAS0_OVERLAY_CONFIG_M_ALIAS_MASK 0x001f000000000000UL
#define UVH_SI_ALIAS0_OVERLAY_CONFIG_ENABLE_SHFT 63
#define UVH_SI_ALIAS0_OVERLAY_CONFIG_ENABLE_MASK 0x8000000000000000UL
union uvh_si_alias0_overlay_config_u {
unsigned long v;
struct uvh_si_alias0_overlay_config_s {
unsigned long rsvd_0_23: 24; /* */
unsigned long base : 8; /* RW */
unsigned long rsvd_32_47: 16; /* */
unsigned long m_alias : 5; /* RW */
unsigned long rsvd_53_62: 10; /* */
unsigned long enable : 1; /* RW */
} s;
};
/* ========================================================================= */
/* UVH_SI_ALIAS1_OVERLAY_CONFIG */
/* ========================================================================= */
#define UVH_SI_ALIAS1_OVERLAY_CONFIG 0xc80010UL
#define UVH_SI_ALIAS1_OVERLAY_CONFIG_BASE_SHFT 24
#define UVH_SI_ALIAS1_OVERLAY_CONFIG_BASE_MASK 0x00000000ff000000UL
#define UVH_SI_ALIAS1_OVERLAY_CONFIG_M_ALIAS_SHFT 48
#define UVH_SI_ALIAS1_OVERLAY_CONFIG_M_ALIAS_MASK 0x001f000000000000UL
#define UVH_SI_ALIAS1_OVERLAY_CONFIG_ENABLE_SHFT 63
#define UVH_SI_ALIAS1_OVERLAY_CONFIG_ENABLE_MASK 0x8000000000000000UL
union uvh_si_alias1_overlay_config_u {
unsigned long v;
struct uvh_si_alias1_overlay_config_s {
unsigned long rsvd_0_23: 24; /* */
unsigned long base : 8; /* RW */
unsigned long rsvd_32_47: 16; /* */
unsigned long m_alias : 5; /* RW */
unsigned long rsvd_53_62: 10; /* */
unsigned long enable : 1; /* RW */
} s;
};
/* ========================================================================= */
/* UVH_SI_ALIAS2_OVERLAY_CONFIG */
/* ========================================================================= */
#define UVH_SI_ALIAS2_OVERLAY_CONFIG 0xc80018UL
#define UVH_SI_ALIAS2_OVERLAY_CONFIG_BASE_SHFT 24
#define UVH_SI_ALIAS2_OVERLAY_CONFIG_BASE_MASK 0x00000000ff000000UL
#define UVH_SI_ALIAS2_OVERLAY_CONFIG_M_ALIAS_SHFT 48
#define UVH_SI_ALIAS2_OVERLAY_CONFIG_M_ALIAS_MASK 0x001f000000000000UL
#define UVH_SI_ALIAS2_OVERLAY_CONFIG_ENABLE_SHFT 63
#define UVH_SI_ALIAS2_OVERLAY_CONFIG_ENABLE_MASK 0x8000000000000000UL
union uvh_si_alias2_overlay_config_u {
unsigned long v;
struct uvh_si_alias2_overlay_config_s {
unsigned long rsvd_0_23: 24; /* */
unsigned long base : 8; /* RW */
unsigned long rsvd_32_47: 16; /* */
unsigned long m_alias : 5; /* RW */
unsigned long rsvd_53_62: 10; /* */
unsigned long enable : 1; /* RW */
} s;
};
#endif /* __ASM_IA64_UV_MMRS__ */