patch-2.4.23 linux-2.4.23/arch/ia64/kernel/acpi.c

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diff -urN linux-2.4.22/arch/ia64/kernel/acpi.c linux-2.4.23/arch/ia64/kernel/acpi.c
@@ -8,6 +8,9 @@
  *  Copyright (C) 2000 Intel Corp.
  *  Copyright (C) 2000,2001 J.I. Lee <jung-ik.lee@intel.com>
  *  Copyright (C) 2001 Paul Diefenbaugh <paul.s.diefenbaugh@intel.com>
+ *  Copyright (C) 2001 Jenna Hall <jenna.s.hall@intel.com>
+ *  Copyright (C) 2001 Takayoshi Kochi <t-kouchi@cq.jp.nec.com>
+ *  Copyright (C) 2002 Erich Focht <efocht@ess.nec.de>
  *
  * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  *
@@ -38,11 +41,14 @@
 #include <linux/irq.h>
 #include <linux/acpi.h>
 #include <linux/efi.h>
+#include <linux/mm.h>
+#include <linux/mmzone.h>
 #include <asm/io.h>
 #include <asm/iosapic.h>
 #include <asm/machvec.h>
 #include <asm/page.h>
 #include <asm/system.h>
+#include <asm/numa.h>
 
 
 #define PREFIX			"ACPI: "
@@ -59,6 +65,8 @@
 
 unsigned char acpi_kbd_controller_present = 1;
 
+int acpi_disabled __initdata;	/* XXX this shouldn't be needed---we can't boot without ACPI! */
+
 const char *
 acpi_get_sysname (void)
 {
@@ -90,6 +98,9 @@
 	if (!strcmp(hdr->oem_id, "HP")) {
 		return "hpzx1";
 	}
+	else if (!strcmp(hdr->oem_id, "SGI")) {
+		return "sn2";
+	}
 
 	return "dig";
 #else
@@ -97,8 +108,6 @@
 	return "hpsim";
 # elif defined (CONFIG_IA64_HP_ZX1)
 	return "hpzx1";
-# elif defined (CONFIG_IA64_SGI_SN1)
-	return "sn1";
 # elif defined (CONFIG_IA64_SGI_SN2)
 	return "sn2";
 # elif defined (CONFIG_IA64_DIG)
@@ -123,17 +132,17 @@
 };
 
 acpi_status
-acpi_vendor_resource_match(acpi_resource *resource, void *context)
+acpi_vendor_resource_match (struct acpi_resource *resource, void *context)
 {
 	struct acpi_vendor_info *info = (struct acpi_vendor_info *) context;
-	acpi_resource_vendor *vendor;
+	struct acpi_resource_vendor *vendor;
 	struct acpi_vendor_descriptor *descriptor;
 	u32 length;
 
 	if (resource->id != ACPI_RSTYPE_VENDOR)
 		return AE_OK;
 
-	vendor = (acpi_resource_vendor *) &resource->data;
+	vendor = (struct acpi_resource_vendor *) &resource->data;
 	descriptor = (struct acpi_vendor_descriptor *) vendor->reserved;
 	if (vendor->length <= sizeof(*info->descriptor) ||
 	    descriptor->guid_id != info->descriptor->guid_id ||
@@ -151,7 +160,7 @@
 }
 
 acpi_status
-acpi_find_vendor_resource(acpi_handle obj, struct acpi_vendor_descriptor *id,
+acpi_find_vendor_resource (acpi_handle obj, struct acpi_vendor_descriptor *id,
 		u8 **data, u32 *length)
 {
 	struct acpi_vendor_info info;
@@ -174,12 +183,11 @@
 };
 
 acpi_status
-acpi_hp_csr_space(acpi_handle obj, u64 *csr_base, u64 *csr_length)
+acpi_hp_csr_space (acpi_handle obj, u64 *csr_base, u64 *csr_length)
 {
 	acpi_status status;
 	u8 *data;
 	u32 length;
-	int i;
 
 	status = acpi_find_vendor_resource(obj, &hp_ccsr_descriptor, &data, &length);
 
@@ -200,7 +208,9 @@
 #define ACPI_MAX_PLATFORM_INTERRUPTS	256
 
 /* Array to record platform interrupt vectors for generic interrupt routing. */
-int platform_intr_list[ACPI_MAX_PLATFORM_INTERRUPTS] = { [0 ... ACPI_MAX_PLATFORM_INTERRUPTS - 1] = -1 };
+int platform_intr_list[ACPI_MAX_PLATFORM_INTERRUPTS] = {
+	[0 ... ACPI_MAX_PLATFORM_INTERRUPTS - 1] = -1
+};
 
 enum acpi_irq_model_id acpi_irq_model = ACPI_IRQ_MODEL_IOSAPIC;
 
@@ -214,7 +224,7 @@
 	int vector = -1;
 
 	if (int_type < ACPI_MAX_PLATFORM_INTERRUPTS) {
-		/* correctable platform error interrupt */
+		/* corrected platform error interrupt */
 		vector = platform_intr_list[int_type];
 	} else
 		printk(KERN_ERR "acpi_request_vector(): invalid interrupt type\n");
@@ -252,7 +262,6 @@
 		iounmap((void *) ipi_base_addr);
 		ipi_base_addr = (unsigned long) ioremap(lapic->address, 0);
 	}
-
 	return 0;
 }
 
@@ -261,7 +270,6 @@
 acpi_parse_lsapic (acpi_table_entry_header *header)
 {
 	struct acpi_table_lsapic *lsapic;
-	int phys_id;
 
 	lsapic = (struct acpi_table_lsapic *) header;
 	if (!lsapic)
@@ -269,30 +277,21 @@
 
 	acpi_table_print_madt_entry(header);
 
-	phys_id = (lsapic->id << 8) | lsapic->eid;
-
-	if (total_cpus == NR_CPUS) {
-		printk(KERN_ERR PREFIX "Ignoring CPU (0x%04x) (NR_CPUS == %d)\n",
-			phys_id, NR_CPUS);
-		return 0;
-	}
-
-	printk(KERN_INFO "CPU %d (0x%04x)", total_cpus, phys_id);
+	printk(KERN_INFO "CPU %d (0x%04x)", total_cpus, (lsapic->id << 8) | lsapic->eid);
 
-	if (lsapic->flags.enabled) {
-		available_cpus++;
+	if (!lsapic->flags.enabled)
+		printk(" disabled");
+	else if (available_cpus >= NR_CPUS)
+		printk(" ignored (increase NR_CPUS)");
+	else {
 		printk(" enabled");
 #ifdef CONFIG_SMP
-		smp_boot_data.cpu_phys_id[total_cpus] = phys_id;
-		if (hard_smp_processor_id() == smp_boot_data.cpu_phys_id[total_cpus])
+		smp_boot_data.cpu_phys_id[available_cpus] = (lsapic->id << 8) | lsapic->eid;
+		if (hard_smp_processor_id()
+		    == (unsigned int) smp_boot_data.cpu_phys_id[available_cpus])
 			printk(" (BSP)");
 #endif
-	}
-	else {
-		printk(" disabled");
-#ifdef CONFIG_SMP
-		smp_boot_data.cpu_phys_id[total_cpus] = -1;
-#endif
+		++available_cpus;
 	}
 
 	printk("\n");
@@ -314,7 +313,6 @@
 	acpi_table_print_madt_entry(header);
 
 	/* TBD: Support lapic_nmi entries */
-
 	return 0;
 }
 
@@ -405,7 +403,6 @@
 	acpi_table_print_madt_entry(header);
 
 	/* TBD: Support nimsrc entries */
-
 	return 0;
 }
 
@@ -437,22 +434,209 @@
 }
 
 
+#ifdef CONFIG_ACPI_NUMA
+
+#define PXM_FLAG_LEN ((MAX_PXM_DOMAINS + 1)/32)
+
+static int __initdata srat_num_cpus;			/* number of cpus */
+static u32 __initdata 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 __initdata pxm_to_nid_map[MAX_PXM_DOMAINS];
+int __initdata nid_to_pxm_map[NR_NODES];
+struct acpi_table_slit __initdata *slit_table;
+
+/*
+ * ACPI 2.0 SLIT (System Locality Information Table)
+ * http://devresource.hp.com/devresource/Docs/TechPapers/IA64/slit.pdf
+ */
+void __init
+acpi_numa_slit_init (struct acpi_table_slit *slit)
+{
+	u32 len;
+
+	len = sizeof(struct acpi_table_header) + 8
+		+ slit->localities * slit->localities;
+	if (slit->header.length != len) {
+		printk("KERN_INFO ACPI 2.0 SLIT: size mismatch: %d expected, %d actual\n",
+		      len, slit->header.length);
+		memset(numa_slit, 10, sizeof(numa_slit));
+		return;
+	}
+	slit_table = slit;
+}
+
+void __init
+acpi_numa_processor_affinity_init (struct acpi_table_processor_affinity *pa)
+{
+	/* record this node in proximity bitmap */
+	pxm_bit_set(pa->proximity_domain);
+
+	node_cpuid[srat_num_cpus].phys_id = (pa->apic_id << 8) | (pa->lsapic_eid);
+	/* nid should be overridden as logical node id later */
+	node_cpuid[srat_num_cpus].nid = pa->proximity_domain;
+	srat_num_cpus++;
+}
+
+void __init
+acpi_numa_memory_affinity_init (struct acpi_table_memory_affinity *ma)
+{
+	unsigned long paddr, size, hole_size, min_hole_size;
+	u8 pxm;
+	struct node_memblk_s *p, *q, *pend;
+
+	pxm = ma->proximity_domain;
+
+	/* fill node memory chunk structure */
+	paddr = ma->base_addr_hi;
+	paddr = (paddr << 32) | ma->base_addr_lo;
+	size = ma->length_hi;
+	size = (size << 32) | ma->length_lo;
+
+	if (num_memblks >= NR_MEMBLKS) {
+		printk(KERN_ERR "Too many mem chunks in SRAT. Ignoring %ld MBytes at %lx\n",
+			size/(1024*1024), paddr);
+		return;
+	}
+
+	/* Ignore disabled entries */
+	if (!ma->flags.enabled)
+		return;
+
+	/*
+	 * When the chunk is not the first one in the node, check distance
+	 * from the other chunks. When the hole is too huge ignore the chunk.
+	 * This restriction should be removed when multiple chunks per node
+	 * is supported.
+	 */
+	pend = &node_memblk[num_memblks];
+	min_hole_size = 0;
+	for (p = &node_memblk[0]; p < pend; p++) {
+		if (p->nid != pxm)
+			continue;
+		if (p->start_paddr < paddr)
+			hole_size = paddr - (p->start_paddr + p->size);
+		else
+			hole_size = p->start_paddr - (paddr + size);
+
+		if (!min_hole_size || hole_size < min_hole_size)
+			min_hole_size = hole_size;
+	}
+
+#if 0	/* test */
+	if (min_hole_size) {
+		if (min_hole_size > size) {
+			printk(KERN_ERR "Too huge memory hole. Ignoring %ld MBytes at %lx\n",
+				size/(1024*1024), paddr);
+			return;
+		}
+	}
+#endif
+
+	/* record this node in proximity bitmap */
+	pxm_bit_set(pxm);
+
+	/* Insertion sort based on base address */
+	pend = &node_memblk[num_memblks];
+	for (p = &node_memblk[0]; p < pend; p++) {
+		if (paddr < p->start_paddr)
+			break;
+	}
+	if (p < pend) {
+		for (q = pend; q >= p; q--)
+			*(q + 1) = *q;
+	}
+	p->start_paddr = paddr;
+	p->size = size;
+	p->nid = pxm;
+	num_memblks++;
+}
+
+void __init
+acpi_numa_arch_fixup(void)
+{
+	int i, j, node_from, node_to;
+
+	if (srat_num_cpus == 0) {
+		node_cpuid[0].phys_id = hard_smp_processor_id();
+		return;
+	}
+
+	/* calculate total number of nodes in system from PXM bitmap */
+	numnodes = 0;		/* init total nodes in system */
+
+	memset(pxm_to_nid_map, -1, sizeof(pxm_to_nid_map));
+	memset(nid_to_pxm_map, -1, sizeof(nid_to_pxm_map));
+	for (i = 0; i < MAX_PXM_DOMAINS; i++) {
+		if (pxm_bit_test(i)) {
+			pxm_to_nid_map[i] = numnodes;
+			nid_to_pxm_map[numnodes++] = i;
+		}
+	}
+
+	/* set logical node id in memory chunk structure */
+	for (i = 0; i < num_memblks; i++)
+		node_memblk[i].nid = pxm_to_nid_map[node_memblk[i].nid];
+
+	/* assign memory bank numbers for each chunk on each node */
+	for (i = 0; i < numnodes; i++) {
+		int bank;
+
+		bank = 0;
+		for (j = 0; j < num_memblks; j++)
+			if (node_memblk[j].nid == i)
+				node_memblk[j].bank = bank++;
+	}
+
+	/* 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];
+
+	printk(KERN_INFO "Number of logical nodes in system = %d\n", numnodes);
+	printk(KERN_INFO "Number of memory chunks in system = %d\n", num_memblks);
+
+	if (!slit_table) return;
+	memset(numa_slit, -1, sizeof(numa_slit));
+	for (i=0; i<slit_table->localities; i++) {
+		if (!pxm_bit_test(i))
+			continue;
+		node_from = pxm_to_nid_map[i];
+		for (j=0; j<slit_table->localities; j++) {
+			if (!pxm_bit_test(j))
+				continue;
+			node_to = pxm_to_nid_map[j];
+			node_distance(node_from, node_to) = 
+				slit_table->entry[i*slit_table->localities + j];
+		}
+	}
+
+#ifdef SLIT_DEBUG
+	printk(KERN_DEBUG "ACPI 2.0 SLIT locality table:\n");
+	for (i = 0; i < numnodes; i++) {
+		for (j = 0; j < numnodes; j++)
+			printk(KERN_DEBUG "%03d ", node_distance(i,j));
+		printk("\n");
+	}
+#endif
+}
+#endif /* CONFIG_ACPI_NUMA */
+
 static int __init
 acpi_parse_fadt (unsigned long phys_addr, unsigned long size)
 {
 	struct acpi_table_header *fadt_header;
-	fadt_descriptor_rev2 *fadt;
+	struct fadt_descriptor_rev2 *fadt;
 	u32 sci_irq;
 
 	if (!phys_addr || !size)
 		return -EINVAL;
 
 	fadt_header = (struct acpi_table_header *) __va(phys_addr);
-
 	if (fadt_header->revision != 3)
 		return -ENODEV;		/* Only deal with ACPI 2.0 FADT */
 
-	fadt = (fadt_descriptor_rev2 *) fadt_header;
+	fadt = (struct fadt_descriptor_rev2 *) fadt_header;
 
 	if (!(fadt->iapc_boot_arch & BAF_8042_KEYBOARD_CONTROLLER))
 		acpi_kbd_controller_present = 0;
@@ -479,20 +663,13 @@
 		rsdp_phys = __pa(efi.acpi20);
 	else if (efi.acpi)
 		printk(KERN_WARNING PREFIX "v1.0/r0.71 tables no longer supported\n");
-
 	return rsdp_phys;
 }
 
 
 int __init
-acpi_boot_init (char *cmdline)
+acpi_boot_init (void)
 {
-	int result;
-
-	/* Initialize the ACPI boot-time table parser */
-	result = acpi_table_init(cmdline);
-	if (result)
-		return result;
 
 	/*
 	 * MADT
@@ -509,65 +686,76 @@
 
 	/* Local APIC */
 
-	if (acpi_table_parse_madt(ACPI_MADT_LAPIC_ADDR_OVR,
-				  acpi_parse_lapic_addr_ovr) < 0)
+	if (acpi_table_parse_madt(ACPI_MADT_LAPIC_ADDR_OVR, acpi_parse_lapic_addr_ovr) < 0)
 		printk(KERN_ERR PREFIX "Error parsing LAPIC address override entry\n");
 
-	if (acpi_table_parse_madt(ACPI_MADT_LSAPIC,
-				  acpi_parse_lsapic) < 1)
+	if (acpi_table_parse_madt(ACPI_MADT_LSAPIC, acpi_parse_lsapic) < 1)
 		printk(KERN_ERR PREFIX "Error parsing MADT - no LAPIC entries\n");
 
-	if (acpi_table_parse_madt(ACPI_MADT_LAPIC_NMI,
-				  acpi_parse_lapic_nmi) < 0)
+	if (acpi_table_parse_madt(ACPI_MADT_LAPIC_NMI, acpi_parse_lapic_nmi) < 0)
 		printk(KERN_ERR PREFIX "Error parsing LAPIC NMI entry\n");
 
 	/* I/O APIC */
 
-	if (acpi_table_parse_madt(ACPI_MADT_IOSAPIC,
-				  acpi_parse_iosapic) < 1)
-		printk(KERN_ERR PREFIX "Error parsing MADT - no IOAPIC entries\n");
+	if (acpi_table_parse_madt(ACPI_MADT_IOSAPIC, acpi_parse_iosapic) < 1)
+		printk(KERN_ERR PREFIX "Error parsing MADT - no IOSAPIC entries\n");
 
 	/* System-Level Interrupt Routing */
 
-	if (acpi_table_parse_madt(ACPI_MADT_PLAT_INT_SRC,
-				  acpi_parse_plat_int_src) < 0)
+	if (acpi_table_parse_madt(ACPI_MADT_PLAT_INT_SRC, acpi_parse_plat_int_src) < 0)
 		printk(KERN_ERR PREFIX "Error parsing platform interrupt source entry\n");
 
-	if (acpi_table_parse_madt(ACPI_MADT_INT_SRC_OVR,
-				  acpi_parse_int_src_ovr) < 0)
+	if (acpi_table_parse_madt(ACPI_MADT_INT_SRC_OVR, acpi_parse_int_src_ovr) < 0)
 		printk(KERN_ERR PREFIX "Error parsing interrupt source overrides entry\n");
 
-	if (acpi_table_parse_madt(ACPI_MADT_NMI_SRC,
-				  acpi_parse_nmi_src) < 0)
+	if (acpi_table_parse_madt(ACPI_MADT_NMI_SRC, acpi_parse_nmi_src) < 0)
 		printk(KERN_ERR PREFIX "Error parsing NMI SRC entry\n");
-skip_madt:
+  skip_madt:
 
 	/*
-	 * The FADT table contains an SCI_INT line, by which the system
+	 * FADT says whether a legacy keyboard controller is present.
+	 * The FADT also contains an SCI_INT line, by which the system
 	 * gets interrupts such as power and sleep buttons.  If it's not
 	 * on a Legacy interrupt, it needs to be setup.
 	 */
-	if (acpi_table_parse(ACPI_FACP, acpi_parse_fadt) < 1)
+	if (acpi_table_parse(ACPI_FADT, acpi_parse_fadt) < 1)
 		printk(KERN_ERR PREFIX "Can't find FADT\n");
 
 #ifdef CONFIG_SMP
 	if (available_cpus == 0) {
 		printk(KERN_INFO "ACPI: Found 0 CPUS; assuming 1\n");
+		printk(KERN_INFO "CPU 0 (0x%04x)", hard_smp_processor_id());
+		smp_boot_data.cpu_phys_id[available_cpus] = hard_smp_processor_id();
 		available_cpus = 1; /* We've got at least one of these, no? */
 	}
-	smp_boot_data.cpu_count = total_cpus;
+	smp_boot_data.cpu_count = available_cpus;
+
+	smp_build_cpu_map();
+# ifdef CONFIG_NUMA
+	/* If the platform did not have an SRAT table, initialize the
+	 * node_cpuid table from the smp_boot_data array. All cpus
+	 * will be on node 0.
+	 */
+	if (srat_num_cpus == 0) {
+		int cpu, i=1;
+		for (cpu=0; cpu<smp_boot_data.cpu_count; cpu++)
+			if (smp_boot_data.cpu_phys_id[cpu] != hard_smp_processor_id())
+				node_cpuid[i++].phys_id = smp_boot_data.cpu_phys_id[cpu];
+	}
+	build_cpu_to_node_map();
+# endif
+
 #endif
 	/* Make boot-up look pretty */
 	printk(KERN_INFO "%d CPUs available, %d CPUs total\n", available_cpus, total_cpus);
 	return 0;
 }
 
+/*
+ * PCI Interrupt Routing
+ */
 
-/* --------------------------------------------------------------------------
-                             PCI Interrupt Routing
-   -------------------------------------------------------------------------- */
 #ifdef CONFIG_PCI
-
 int __init
 acpi_get_prt (struct pci_vector_struct **vectors, int *count)
 {
@@ -609,7 +797,8 @@
 	*count = acpi_prt.count;
 	return 0;
 }
-#endif
+#endif /* CONFIG_PCI */
+
 /* Assume IA64 always use I/O SAPIC */
 
 int __init
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TCL-scripts by Sam Shen (who was at: slshen@lbl.gov)