/*
* Written by: Garry Forsgren, Unisys Corporation
* Natalie Protasevich, Unisys Corporation
+ *
* This file contains the code to configure and interface
* with Unisys ES7000 series hardware system manager.
*
- * Copyright (c) 2003 Unisys Corporation. All Rights Reserved.
+ * Copyright (c) 2003 Unisys Corporation.
+ * Copyright (C) 2009, Red Hat, Inc., Ingo Molnar
+ *
+ * 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 as
#include <linux/errno.h>
#include <linux/acpi.h>
#include <linux/init.h>
+#include <linux/nmi.h>
#include <linux/smp.h>
+#include <linux/io.h>
#include <asm/apicdef.h>
#include <asm/atomic.h>
#include <asm/setup.h>
#include <asm/apic.h>
#include <asm/ipi.h>
-#include <asm/nmi.h>
-#include <asm/smp.h>
-#include <asm/io.h>
/*
* ES7000 chipsets
};
#ifdef CONFIG_ACPI
+
struct es7000_oem_table {
struct acpi_table_header Header;
u32 OEMTableAddr;
u32 OEMTableSize;
};
+
+static unsigned long oem_addrX;
+static unsigned long oem_size;
+
#endif
/*
* ES7000 Globals
*/
-static volatile unsigned long *psai = NULL;
+static volatile unsigned long *psai;
static struct mip_reg *mip_reg;
static struct mip_reg *host_reg;
static int mip_port;
-static unsigned long mip_addr, host_addr;
+static unsigned long mip_addr;
+static unsigned long host_addr;
int es7000_plat;
}
#ifdef CONFIG_ACPI
-
-static unsigned long oem_addrX;
-static unsigned long oem_size;
-
static int __init find_unisys_acpi_oem_table(unsigned long *oem_addr)
{
struct acpi_table_header *header = NULL;
- int i = 0;
+ struct es7000_oem_table *table;
acpi_size tbl_size;
+ acpi_status ret;
+ int i = 0;
- while (ACPI_SUCCESS(acpi_get_table_with_size("OEM1", i++, &header, &tbl_size))) {
- if (!memcmp((char *) &header->oem_id, "UNISYS", 6)) {
- struct es7000_oem_table *t = (void *)header;
+ for (;;) {
+ ret = acpi_get_table_with_size("OEM1", i++, &header, &tbl_size);
+ if (!ACPI_SUCCESS(ret))
+ return -1;
- oem_addrX = t->OEMTableAddr;
- oem_size = t->OEMTableSize;
- early_acpi_os_unmap_memory(header, tbl_size);
+ if (!memcmp((char *) &header->oem_id, "UNISYS", 6))
+ break;
- *oem_addr = (unsigned long)__acpi_map_table(oem_addrX,
- oem_size);
- return 0;
- }
early_acpi_os_unmap_memory(header, tbl_size);
}
- return -1;
+
+ table = (void *)header;
+
+ oem_addrX = table->OEMTableAddr;
+ oem_size = table->OEMTableSize;
+
+ early_acpi_os_unmap_memory(header, tbl_size);
+
+ *oem_addr = (unsigned long)__acpi_map_table(oem_addrX, oem_size);
+
+ return 0;
}
static void __init unmap_unisys_acpi_oem_table(unsigned long oem_addr)
__acpi_unmap_table((char *)oem_addr, oem_size);
}
-#endif
+
+static int es7000_check_dsdt(void)
+{
+ struct acpi_table_header header;
+
+ if (ACPI_SUCCESS(acpi_get_table_header(ACPI_SIG_DSDT, 0, &header)) &&
+ !strncmp(header.oem_id, "UNISYS", 6))
+ return 1;
+ return 0;
+}
+
+/* Hook from generic ACPI tables.c */
+static int __init es7000_acpi_madt_oem_check(char *oem_id, char *oem_table_id)
+{
+ unsigned long oem_addr = 0;
+ int check_dsdt;
+ int ret = 0;
+
+ /* check dsdt at first to avoid clear fix_map for oem_addr */
+ check_dsdt = es7000_check_dsdt();
+
+ if (!find_unisys_acpi_oem_table(&oem_addr)) {
+ if (check_dsdt) {
+ ret = parse_unisys_oem((char *)oem_addr);
+ } else {
+ setup_unisys();
+ ret = 1;
+ }
+ /*
+ * we need to unmap it
+ */
+ unmap_unisys_acpi_oem_table(oem_addr);
+ }
+ return ret;
+}
+#else /* !CONFIG_ACPI: */
+static int __init es7000_acpi_madt_oem_check(char *oem_id, char *oem_table_id)
+{
+ return 0;
+}
+#endif /* !CONFIG_ACPI */
static void es7000_spin(int n)
{
spin = MIP_SPIN;
while ((host_reg->off_0x38 & MIP_VALID) != 0) {
if (--spin <= 0) {
- printk("es7000_mip_write: Timeout waiting for Host Valid Flag");
+ WARN(1, "Timeout waiting for Host Valid Flag\n");
return -1;
}
es7000_spin(MIP_SPIN);
while ((mip_reg->off_0x38 & MIP_VALID) == 0) {
if (--spin <= 0) {
- printk("es7000_mip_write: Timeout waiting for MIP Valid Flag");
+ WARN(1, "Timeout waiting for MIP Valid Flag\n");
return -1;
}
es7000_spin(MIP_SPIN);
if (!es7000_plat)
return;
- printk("ES7000: Enabling APIC mode.\n");
+ printk(KERN_INFO "ES7000: Enabling APIC mode.\n");
memset(&es7000_mip_reg, 0, sizeof(struct mip_reg));
es7000_mip_reg.off_0x00 = MIP_SW_APIC;
es7000_mip_reg.off_0x38 = MIP_VALID;
- while ((mip_status = es7000_mip_write(&es7000_mip_reg)) != 0) {
- printk("es7000_enable_apic_mode: command failed, status = %x\n",
- mip_status);
- }
+ while ((mip_status = es7000_mip_write(&es7000_mip_reg)) != 0)
+ WARN(1, "Command failed, status = %x\n", mip_status);
}
static void es7000_vector_allocation_domain(int cpu, cpumask_t *retmask)
return (x >> 24) & 0xFF;
}
-#ifdef CONFIG_ACPI
-static int es7000_check_dsdt(void)
-{
- struct acpi_table_header header;
-
- if (ACPI_SUCCESS(acpi_get_table_header(ACPI_SIG_DSDT, 0, &header)) &&
- !strncmp(header.oem_id, "UNISYS", 6))
- return 1;
- return 0;
-}
-#endif
-
static void es7000_send_IPI_mask(const struct cpumask *mask, int vector)
{
default_send_IPI_mask_sequence_phys(mask, vector);
static void es7000_setup_apic_routing(void)
{
int apic = per_cpu(x86_bios_cpu_apicid, smp_processor_id());
- printk("Enabling APIC mode: %s. Using %d I/O APICs, target cpus %lx\n",
+
+ printk(KERN_INFO
+ "Enabling APIC mode: %s. Using %d I/O APICs, target cpus %lx\n",
(apic_version[apic] == 0x14) ?
"Physical Cluster" : "Logical Cluster",
- nr_ioapics, cpus_addr(*es7000_target_cpus())[0]);
+ nr_ioapics, cpus_addr(*es7000_target_cpus())[0]);
}
static int es7000_apicid_to_node(int logical_apicid)
return BAD_APICID;
}
+static int cpu_id;
+
static physid_mask_t es7000_apicid_to_cpu_present(int phys_apicid)
{
- static int id = 0;
physid_mask_t mask;
- mask = physid_mask_of_physid(id);
- ++id;
+ mask = physid_mask_of_physid(cpu_id);
+ ++cpu_id;
return mask;
}
int new_apicid = es7000_cpu_to_logical_apicid(cpu);
if (APIC_CLUSTER(apicid) != APIC_CLUSTER(new_apicid)) {
- printk("%s: Not a valid mask!\n", __func__);
+ WARN(1, "Not a valid mask!");
return 0xFF;
}
return 0;
}
-#ifdef CONFIG_ACPI
-/* Hook from generic ACPI tables.c */
-static int __init es7000_acpi_madt_oem_check(char *oem_id, char *oem_table_id)
-{
- unsigned long oem_addr = 0;
- int check_dsdt;
- int ret = 0;
-
- /* check dsdt at first to avoid clear fix_map for oem_addr */
- check_dsdt = es7000_check_dsdt();
-
- if (!find_unisys_acpi_oem_table(&oem_addr)) {
- if (check_dsdt) {
- ret = parse_unisys_oem((char *)oem_addr);
- } else {
- setup_unisys();
- ret = 1;
- }
- /*
- * we need to unmap it
- */
- unmap_unisys_acpi_oem_table(oem_addr);
- }
- return ret;
-}
-#else
-static int __init es7000_acpi_madt_oem_check(char *oem_id, char *oem_table_id)
-{
- return 0;
-}
-#endif
-
struct genapic apic_es7000 = {
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