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authorTony Luck <tony.luck@intel.com>2006-06-23 13:46:23 -0700
committerTony Luck <tony.luck@intel.com>2006-06-23 13:46:23 -0700
commit8cf60e04a131310199d5776e2f9e915f0c468899 (patch)
tree373a68e88e6737713a0a5723d552cdeefffff929 /arch/ia64/kernel
parent1323523f505606cfd24af6122369afddefc3b09d (diff)
parent95eaa5fa8eb2c345244acd5f65b200b115ae8c65 (diff)
Auto-update from upstream
Diffstat (limited to 'arch/ia64/kernel')
-rw-r--r--arch/ia64/kernel/acpi.c28
-rw-r--r--arch/ia64/kernel/entry.S2
-rw-r--r--arch/ia64/kernel/irq_ia64.c19
-rw-r--r--arch/ia64/kernel/perfmon.c10
-rw-r--r--arch/ia64/kernel/uncached.c200
5 files changed, 139 insertions, 120 deletions
diff --git a/arch/ia64/kernel/acpi.c b/arch/ia64/kernel/acpi.c
index 58c93a30348..6ea642beaae 100644
--- a/arch/ia64/kernel/acpi.c
+++ b/arch/ia64/kernel/acpi.c
@@ -68,8 +68,6 @@ EXPORT_SYMBOL(pm_power_off);
unsigned char acpi_kbd_controller_present = 1;
unsigned char acpi_legacy_devices;
-static unsigned int __initdata acpi_madt_rev;
-
unsigned int acpi_cpei_override;
unsigned int acpi_cpei_phys_cpuid;
@@ -243,6 +241,8 @@ acpi_parse_iosapic(acpi_table_entry_header * header, const unsigned long end)
return iosapic_init(iosapic->address, iosapic->global_irq_base);
}
+static unsigned int __initdata acpi_madt_rev;
+
static int __init
acpi_parse_plat_int_src(acpi_table_entry_header * header,
const unsigned long end)
@@ -415,9 +415,6 @@ static int __initdata srat_num_cpus; /* number of cpus */
static u32 __devinitdata pxm_flag[PXM_FLAG_LEN];
#define pxm_bit_set(bit) (set_bit(bit,(void *)pxm_flag))
#define pxm_bit_test(bit) (test_bit(bit,(void *)pxm_flag))
-/* maps to convert between proximity domain and logical node ID */
-int __devinitdata pxm_to_nid_map[MAX_PXM_DOMAINS];
-int __initdata nid_to_pxm_map[MAX_NUMNODES];
static struct acpi_table_slit __initdata *slit_table;
static int get_processor_proximity_domain(struct acpi_table_processor_affinity *pa)
@@ -533,22 +530,17 @@ void __init acpi_numa_arch_fixup(void)
* MCD - This can probably be dropped now. No need for pxm ID to node ID
* mapping with sparse node numbering iff MAX_PXM_DOMAINS <= MAX_NUMNODES.
*/
- /* calculate total number of nodes in system from PXM bitmap */
- memset(pxm_to_nid_map, -1, sizeof(pxm_to_nid_map));
- memset(nid_to_pxm_map, -1, sizeof(nid_to_pxm_map));
nodes_clear(node_online_map);
for (i = 0; i < MAX_PXM_DOMAINS; i++) {
if (pxm_bit_test(i)) {
- int nid = num_online_nodes();
- pxm_to_nid_map[i] = nid;
- nid_to_pxm_map[nid] = i;
+ int nid = acpi_map_pxm_to_node(i);
node_set_online(nid);
}
}
/* set logical node id in memory chunk structure */
for (i = 0; i < num_node_memblks; i++)
- node_memblk[i].nid = pxm_to_nid_map[node_memblk[i].nid];
+ node_memblk[i].nid = pxm_to_node(node_memblk[i].nid);
/* assign memory bank numbers for each chunk on each node */
for_each_online_node(i) {
@@ -562,7 +554,7 @@ void __init acpi_numa_arch_fixup(void)
/* set logical node id in cpu structure */
for (i = 0; i < srat_num_cpus; i++)
- node_cpuid[i].nid = pxm_to_nid_map[node_cpuid[i].nid];
+ node_cpuid[i].nid = pxm_to_node(node_cpuid[i].nid);
printk(KERN_INFO "Number of logical nodes in system = %d\n",
num_online_nodes());
@@ -575,11 +567,11 @@ void __init acpi_numa_arch_fixup(void)
for (i = 0; i < slit_table->localities; i++) {
if (!pxm_bit_test(i))
continue;
- node_from = pxm_to_nid_map[i];
+ node_from = pxm_to_node(i);
for (j = 0; j < slit_table->localities; j++) {
if (!pxm_bit_test(j))
continue;
- node_to = pxm_to_nid_map[j];
+ node_to = pxm_to_node(j);
node_distance(node_from, node_to) =
slit_table->entry[i * slit_table->localities + j];
}
@@ -785,9 +777,9 @@ int acpi_map_cpu2node(acpi_handle handle, int cpu, long physid)
/*
* Assuming that the container driver would have set the proximity
- * domain and would have initialized pxm_to_nid_map[pxm_id] && pxm_flag
+ * domain and would have initialized pxm_to_node(pxm_id) && pxm_flag
*/
- node_cpuid[cpu].nid = (pxm_id < 0) ? 0 : pxm_to_nid_map[pxm_id];
+ node_cpuid[cpu].nid = (pxm_id < 0) ? 0 : pxm_to_node(pxm_id);
node_cpuid[cpu].phys_id = physid;
#endif
@@ -966,7 +958,7 @@ acpi_map_iosapic(acpi_handle handle, u32 depth, void *context, void **ret)
if (pxm < 0)
return AE_OK;
- node = pxm_to_nid_map[pxm];
+ node = pxm_to_node(pxm);
if (node >= MAX_NUMNODES || !node_online(node) ||
cpus_empty(node_to_cpumask(node)))
diff --git a/arch/ia64/kernel/entry.S b/arch/ia64/kernel/entry.S
index bcb80ca5cf4..32c999f58d1 100644
--- a/arch/ia64/kernel/entry.S
+++ b/arch/ia64/kernel/entry.S
@@ -1584,7 +1584,7 @@ sys_call_table:
data8 sys_keyctl
data8 sys_ioprio_set
data8 sys_ioprio_get // 1275
- data8 sys_ni_syscall
+ data8 sys_move_pages
data8 sys_inotify_init
data8 sys_inotify_add_watch
data8 sys_inotify_rm_watch
diff --git a/arch/ia64/kernel/irq_ia64.c b/arch/ia64/kernel/irq_ia64.c
index 6c4d59fd036..ef9a2b49307 100644
--- a/arch/ia64/kernel/irq_ia64.c
+++ b/arch/ia64/kernel/irq_ia64.c
@@ -46,6 +46,10 @@
#define IRQ_DEBUG 0
+/* These can be overridden in platform_irq_init */
+int ia64_first_device_vector = IA64_DEF_FIRST_DEVICE_VECTOR;
+int ia64_last_device_vector = IA64_DEF_LAST_DEVICE_VECTOR;
+
/* default base addr of IPI table */
void __iomem *ipi_base_addr = ((void __iomem *)
(__IA64_UNCACHED_OFFSET | IA64_IPI_DEFAULT_BASE_ADDR));
@@ -60,7 +64,7 @@ __u8 isa_irq_to_vector_map[16] = {
};
EXPORT_SYMBOL(isa_irq_to_vector_map);
-static unsigned long ia64_vector_mask[BITS_TO_LONGS(IA64_NUM_DEVICE_VECTORS)];
+static unsigned long ia64_vector_mask[BITS_TO_LONGS(IA64_MAX_DEVICE_VECTORS)];
int
assign_irq_vector (int irq)
@@ -89,6 +93,19 @@ free_irq_vector (int vector)
printk(KERN_WARNING "%s: double free!\n", __FUNCTION__);
}
+int
+reserve_irq_vector (int vector)
+{
+ int pos;
+
+ if (vector < IA64_FIRST_DEVICE_VECTOR ||
+ vector > IA64_LAST_DEVICE_VECTOR)
+ return -EINVAL;
+
+ pos = vector - IA64_FIRST_DEVICE_VECTOR;
+ return test_and_set_bit(pos, ia64_vector_mask);
+}
+
#ifdef CONFIG_SMP
# define IS_RESCHEDULE(vec) (vec == IA64_IPI_RESCHEDULE)
#else
diff --git a/arch/ia64/kernel/perfmon.c b/arch/ia64/kernel/perfmon.c
index 077f21216b6..6d7bc8ff7b3 100644
--- a/arch/ia64/kernel/perfmon.c
+++ b/arch/ia64/kernel/perfmon.c
@@ -532,7 +532,6 @@ static ctl_table pfm_sysctl_root[] = {
static struct ctl_table_header *pfm_sysctl_header;
static int pfm_context_unload(pfm_context_t *ctx, void *arg, int count, struct pt_regs *regs);
-static int pfm_flush(struct file *filp);
#define pfm_get_cpu_var(v) __ia64_per_cpu_var(v)
#define pfm_get_cpu_data(a,b) per_cpu(a, b)
@@ -595,10 +594,11 @@ pfm_get_unmapped_area(struct file *file, unsigned long addr, unsigned long len,
}
-static struct super_block *
-pfmfs_get_sb(struct file_system_type *fs_type, int flags, const char *dev_name, void *data)
+static int
+pfmfs_get_sb(struct file_system_type *fs_type, int flags, const char *dev_name, void *data,
+ struct vfsmount *mnt)
{
- return get_sb_pseudo(fs_type, "pfm:", NULL, PFMFS_MAGIC);
+ return get_sb_pseudo(fs_type, "pfm:", NULL, PFMFS_MAGIC, mnt);
}
static struct file_system_type pfm_fs_type = {
@@ -1773,7 +1773,7 @@ pfm_syswide_cleanup_other_cpu(pfm_context_t *ctx)
* When caller is self-monitoring, the context is unloaded.
*/
static int
-pfm_flush(struct file *filp)
+pfm_flush(struct file *filp, fl_owner_t id)
{
pfm_context_t *ctx;
struct task_struct *task;
diff --git a/arch/ia64/kernel/uncached.c b/arch/ia64/kernel/uncached.c
index fcd2bad0286..5f03b9e524d 100644
--- a/arch/ia64/kernel/uncached.c
+++ b/arch/ia64/kernel/uncached.c
@@ -1,5 +1,5 @@
/*
- * Copyright (C) 2001-2005 Silicon Graphics, Inc. All rights reserved.
+ * Copyright (C) 2001-2006 Silicon Graphics, Inc. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of version 2 of the GNU General Public License
@@ -29,15 +29,8 @@
#include <asm/tlbflush.h>
#include <asm/sn/arch.h>
-#define DEBUG 0
-#if DEBUG
-#define dprintk printk
-#else
-#define dprintk(x...) do { } while (0)
-#endif
-
-void __init efi_memmap_walk_uc (efi_freemem_callback_t callback);
+extern void __init efi_memmap_walk_uc(efi_freemem_callback_t, void *);
#define MAX_UNCACHED_GRANULES 5
static int allocated_granules;
@@ -60,6 +53,7 @@ static void uncached_ipi_visibility(void *data)
static void uncached_ipi_mc_drain(void *data)
{
int status;
+
status = ia64_pal_mc_drain();
if (status)
printk(KERN_WARNING "ia64_pal_mc_drain() failed with %i on "
@@ -67,30 +61,35 @@ static void uncached_ipi_mc_drain(void *data)
}
-static unsigned long
-uncached_get_new_chunk(struct gen_pool *poolp)
+/*
+ * Add a new chunk of uncached memory pages to the specified pool.
+ *
+ * @pool: pool to add new chunk of uncached memory to
+ * @nid: node id of node to allocate memory from, or -1
+ *
+ * This is accomplished by first allocating a granule of cached memory pages
+ * and then converting them to uncached memory pages.
+ */
+static int uncached_add_chunk(struct gen_pool *pool, int nid)
{
struct page *page;
- void *tmp;
int status, i;
- unsigned long addr, node;
+ unsigned long c_addr, uc_addr;
if (allocated_granules >= MAX_UNCACHED_GRANULES)
- return 0;
+ return -1;
+
+ /* attempt to allocate a granule's worth of cached memory pages */
- node = poolp->private;
- page = alloc_pages_node(node, GFP_KERNEL | __GFP_ZERO,
+ page = alloc_pages_node(nid, GFP_KERNEL | __GFP_ZERO,
IA64_GRANULE_SHIFT-PAGE_SHIFT);
+ if (!page)
+ return -1;
- dprintk(KERN_INFO "get_new_chunk page %p, addr %lx\n",
- page, (unsigned long)(page-vmem_map) << PAGE_SHIFT);
+ /* convert the memory pages from cached to uncached */
- /*
- * Do magic if no mem on local node! XXX
- */
- if (!page)
- return 0;
- tmp = page_address(page);
+ c_addr = (unsigned long)page_address(page);
+ uc_addr = c_addr - PAGE_OFFSET + __IA64_UNCACHED_OFFSET;
/*
* There's a small race here where it's possible for someone to
@@ -100,76 +99,90 @@ uncached_get_new_chunk(struct gen_pool *poolp)
for (i = 0; i < (IA64_GRANULE_SIZE / PAGE_SIZE); i++)
SetPageUncached(&page[i]);
- flush_tlb_kernel_range(tmp, tmp + IA64_GRANULE_SIZE);
+ flush_tlb_kernel_range(uc_addr, uc_adddr + IA64_GRANULE_SIZE);
status = ia64_pal_prefetch_visibility(PAL_VISIBILITY_PHYSICAL);
-
- dprintk(KERN_INFO "pal_prefetch_visibility() returns %i on cpu %i\n",
- status, raw_smp_processor_id());
-
if (!status) {
status = smp_call_function(uncached_ipi_visibility, NULL, 0, 1);
if (status)
- printk(KERN_WARNING "smp_call_function failed for "
- "uncached_ipi_visibility! (%i)\n", status);
+ goto failed;
}
+ preempt_disable();
+
if (ia64_platform_is("sn2"))
- sn_flush_all_caches((unsigned long)tmp, IA64_GRANULE_SIZE);
+ sn_flush_all_caches(uc_addr, IA64_GRANULE_SIZE);
else
- flush_icache_range((unsigned long)tmp,
- (unsigned long)tmp+IA64_GRANULE_SIZE);
+ flush_icache_range(uc_addr, uc_addr + IA64_GRANULE_SIZE);
+
+ /* flush the just introduced uncached translation from the TLB */
+ local_flush_tlb_all();
+
+ preempt_enable();
ia64_pal_mc_drain();
status = smp_call_function(uncached_ipi_mc_drain, NULL, 0, 1);
if (status)
- printk(KERN_WARNING "smp_call_function failed for "
- "uncached_ipi_mc_drain! (%i)\n", status);
+ goto failed;
- addr = (unsigned long)tmp - PAGE_OFFSET + __IA64_UNCACHED_OFFSET;
+ /*
+ * The chunk of memory pages has been converted to uncached so now we
+ * can add it to the pool.
+ */
+ status = gen_pool_add(pool, uc_addr, IA64_GRANULE_SIZE, nid);
+ if (status)
+ goto failed;
allocated_granules++;
- return addr;
+ return 0;
+
+ /* failed to convert or add the chunk so give it back to the kernel */
+failed:
+ for (i = 0; i < (IA64_GRANULE_SIZE / PAGE_SIZE); i++)
+ ClearPageUncached(&page[i]);
+
+ free_pages(c_addr, IA64_GRANULE_SHIFT-PAGE_SHIFT);
+ return -1;
}
/*
* uncached_alloc_page
*
+ * @starting_nid: node id of node to start with, or -1
+ *
* Allocate 1 uncached page. Allocates on the requested node. If no
* uncached pages are available on the requested node, roundrobin starting
- * with higher nodes.
+ * with the next higher node.
*/
-unsigned long
-uncached_alloc_page(int nid)
+unsigned long uncached_alloc_page(int starting_nid)
{
- unsigned long maddr;
+ unsigned long uc_addr;
+ struct gen_pool *pool;
+ int nid;
- maddr = gen_pool_alloc(uncached_pool[nid], PAGE_SIZE);
+ if (unlikely(starting_nid >= MAX_NUMNODES))
+ return 0;
- dprintk(KERN_DEBUG "uncached_alloc_page returns %lx on node %i\n",
- maddr, nid);
+ if (starting_nid < 0)
+ starting_nid = numa_node_id();
+ nid = starting_nid;
- /*
- * If no memory is availble on our local node, try the
- * remaining nodes in the system.
- */
- if (!maddr) {
- int i;
-
- for (i = MAX_NUMNODES - 1; i >= 0; i--) {
- if (i == nid || !node_online(i))
- continue;
- maddr = gen_pool_alloc(uncached_pool[i], PAGE_SIZE);
- dprintk(KERN_DEBUG "uncached_alloc_page alternate search "
- "returns %lx on node %i\n", maddr, i);
- if (maddr) {
- break;
- }
- }
- }
+ do {
+ if (!node_online(nid))
+ continue;
+ pool = uncached_pool[nid];
+ if (pool == NULL)
+ continue;
+ do {
+ uc_addr = gen_pool_alloc(pool, PAGE_SIZE);
+ if (uc_addr != 0)
+ return uc_addr;
+ } while (uncached_add_chunk(pool, nid) == 0);
+
+ } while ((nid = (nid + 1) % MAX_NUMNODES) != starting_nid);
- return maddr;
+ return 0;
}
EXPORT_SYMBOL(uncached_alloc_page);
@@ -177,21 +190,22 @@ EXPORT_SYMBOL(uncached_alloc_page);
/*
* uncached_free_page
*
+ * @uc_addr: uncached address of page to free
+ *
* Free a single uncached page.
*/
-void
-uncached_free_page(unsigned long maddr)
+void uncached_free_page(unsigned long uc_addr)
{
- int node;
-
- node = paddr_to_nid(maddr - __IA64_UNCACHED_OFFSET);
+ int nid = paddr_to_nid(uc_addr - __IA64_UNCACHED_OFFSET);
+ struct gen_pool *pool = uncached_pool[nid];
- dprintk(KERN_DEBUG "uncached_free_page(%lx) on node %i\n", maddr, node);
+ if (unlikely(pool == NULL))
+ return;
- if ((maddr & (0XFUL << 60)) != __IA64_UNCACHED_OFFSET)
- panic("uncached_free_page invalid address %lx\n", maddr);
+ if ((uc_addr & (0XFUL << 60)) != __IA64_UNCACHED_OFFSET)
+ panic("uncached_free_page invalid address %lx\n", uc_addr);
- gen_pool_free(uncached_pool[node], maddr, PAGE_SIZE);
+ gen_pool_free(pool, uc_addr, PAGE_SIZE);
}
EXPORT_SYMBOL(uncached_free_page);
@@ -199,43 +213,39 @@ EXPORT_SYMBOL(uncached_free_page);
/*
* uncached_build_memmap,
*
+ * @uc_start: uncached starting address of a chunk of uncached memory
+ * @uc_end: uncached ending address of a chunk of uncached memory
+ * @arg: ignored, (NULL argument passed in on call to efi_memmap_walk_uc())
+ *
* Called at boot time to build a map of pages that can be used for
* memory special operations.
*/
-static int __init
-uncached_build_memmap(unsigned long start, unsigned long end, void *arg)
+static int __init uncached_build_memmap(unsigned long uc_start,
+ unsigned long uc_end, void *arg)
{
- long length = end - start;
- int node;
-
- dprintk(KERN_ERR "uncached_build_memmap(%lx %lx)\n", start, end);
+ int nid = paddr_to_nid(uc_start - __IA64_UNCACHED_OFFSET);
+ struct gen_pool *pool = uncached_pool[nid];
+ size_t size = uc_end - uc_start;
touch_softlockup_watchdog();
- memset((char *)start, 0, length);
- node = paddr_to_nid(start - __IA64_UNCACHED_OFFSET);
-
- for (; start < end ; start += PAGE_SIZE) {
- dprintk(KERN_INFO "sticking %lx into the pool!\n", start);
- gen_pool_free(uncached_pool[node], start, PAGE_SIZE);
+ if (pool != NULL) {
+ memset((char *)uc_start, 0, size);
+ (void) gen_pool_add(pool, uc_start, size, nid);
}
-
return 0;
}
-static int __init uncached_init(void) {
- int i;
+static int __init uncached_init(void)
+{
+ int nid;
- for (i = 0; i < MAX_NUMNODES; i++) {
- if (!node_online(i))
- continue;
- uncached_pool[i] = gen_pool_create(0, IA64_GRANULE_SHIFT,
- &uncached_get_new_chunk, i);
+ for_each_online_node(nid) {
+ uncached_pool[nid] = gen_pool_create(PAGE_SHIFT, nid);
}
- efi_memmap_walk_uc(uncached_build_memmap);
-
+ efi_memmap_walk_uc(uncached_build_memmap, NULL);
return 0;
}