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-rw-r--r--arch/x86/kernel/es7000_32.c442
1 files changed, 195 insertions, 247 deletions
diff --git a/arch/x86/kernel/es7000_32.c b/arch/x86/kernel/es7000_32.c
index 55515d73d9c..320f2d2e4e5 100644
--- a/arch/x86/kernel/es7000_32.c
+++ b/arch/x86/kernel/es7000_32.c
@@ -1,10 +1,14 @@
/*
* 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
@@ -23,128 +27,105 @@
*
* http://www.unisys.com
*/
-
-#include <linux/module.h>
-#include <linux/types.h>
+#include <linux/notifier.h>
+#include <linux/spinlock.h>
+#include <linux/cpumask.h>
+#include <linux/threads.h>
#include <linux/kernel.h>
-#include <linux/smp.h>
+#include <linux/module.h>
+#include <linux/reboot.h>
#include <linux/string.h>
-#include <linux/spinlock.h>
+#include <linux/types.h>
#include <linux/errno.h>
-#include <linux/notifier.h>
-#include <linux/reboot.h>
-#include <linux/init.h>
#include <linux/acpi.h>
-#include <asm/io.h>
-#include <asm/nmi.h>
-#include <asm/smp.h>
-#include <asm/atomic.h>
+#include <linux/init.h>
+#include <linux/nmi.h>
+#include <linux/smp.h>
+#include <linux/io.h>
+
#include <asm/apicdef.h>
-#include <asm/genapic.h>
+#include <asm/atomic.h>
+#include <asm/fixmap.h>
+#include <asm/mpspec.h>
#include <asm/setup.h>
+#include <asm/apic.h>
+#include <asm/ipi.h>
/*
* ES7000 chipsets
*/
-#define NON_UNISYS 0
-#define ES7000_CLASSIC 1
-#define ES7000_ZORRO 2
+#define NON_UNISYS 0
+#define ES7000_CLASSIC 1
+#define ES7000_ZORRO 2
+#define MIP_REG 1
+#define MIP_PSAI_REG 4
-#define MIP_REG 1
-#define MIP_PSAI_REG 4
+#define MIP_BUSY 1
+#define MIP_SPIN 0xf0000
+#define MIP_VALID 0x0100000000000000ULL
+#define MIP_SW_APIC 0x1020b
-#define MIP_BUSY 1
-#define MIP_SPIN 0xf0000
-#define MIP_VALID 0x0100000000000000ULL
-#define MIP_PORT(VALUE) ((VALUE >> 32) & 0xffff)
+#define MIP_PORT(val) ((val >> 32) & 0xffff)
-#define MIP_RD_LO(VALUE) (VALUE & 0xffffffff)
+#define MIP_RD_LO(val) (val & 0xffffffff)
-struct mip_reg_info {
- unsigned long long mip_info;
- unsigned long long delivery_info;
- unsigned long long host_reg;
- unsigned long long mip_reg;
+struct mip_reg {
+ unsigned long long off_0x00;
+ unsigned long long off_0x08;
+ unsigned long long off_0x10;
+ unsigned long long off_0x18;
+ unsigned long long off_0x20;
+ unsigned long long off_0x28;
+ unsigned long long off_0x30;
+ unsigned long long off_0x38;
};
-struct part_info {
- unsigned char type;
- unsigned char length;
- unsigned char part_id;
- unsigned char apic_mode;
- unsigned long snum;
- char ptype[16];
- char sname[64];
- char pname[64];
+struct mip_reg_info {
+ unsigned long long mip_info;
+ unsigned long long delivery_info;
+ unsigned long long host_reg;
+ unsigned long long mip_reg;
};
struct psai {
- unsigned long long entry_type;
- unsigned long long addr;
- unsigned long long bep_addr;
+ unsigned long long entry_type;
+ unsigned long long addr;
+ unsigned long long bep_addr;
};
-struct es7000_mem_info {
- unsigned char type;
- unsigned char length;
- unsigned char resv[6];
- unsigned long long start;
- unsigned long long size;
-};
+#ifdef CONFIG_ACPI
struct es7000_oem_table {
- unsigned long long hdr;
- struct mip_reg_info mip;
- struct part_info pif;
- struct es7000_mem_info shm;
- struct psai psai;
+ struct acpi_table_header Header;
+ u32 OEMTableAddr;
+ u32 OEMTableSize;
};
-#ifdef CONFIG_ACPI
-
-struct oem_table {
- struct acpi_table_header Header;
- u32 OEMTableAddr;
- u32 OEMTableSize;
-};
+static unsigned long oem_addrX;
+static unsigned long oem_size;
-extern int find_unisys_acpi_oem_table(unsigned long *oem_addr);
-extern void unmap_unisys_acpi_oem_table(unsigned long oem_addr);
#endif
-struct mip_reg {
- unsigned long long off_0;
- unsigned long long off_8;
- unsigned long long off_10;
- unsigned long long off_18;
- unsigned long long off_20;
- unsigned long long off_28;
- unsigned long long off_30;
- unsigned long long off_38;
-};
-
-#define MIP_SW_APIC 0x1020b
-#define MIP_FUNC(VALUE) (VALUE & 0xff)
-
/*
* ES7000 Globals
*/
-static volatile unsigned long *psai = NULL;
-static struct mip_reg *mip_reg;
-static struct mip_reg *host_reg;
-static int mip_port;
-static unsigned long mip_addr, host_addr;
+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;
+static unsigned long host_addr;
-int es7000_plat;
+int es7000_plat;
/*
* GSI override for ES7000 platforms.
*/
-static unsigned int base;
+static unsigned int base;
static int
es7000_rename_gsi(int ioapic, int gsi)
@@ -160,6 +141,7 @@ es7000_rename_gsi(int ioapic, int gsi)
if (!ioapic && (gsi < 16))
gsi += base;
+
return gsi;
}
@@ -181,14 +163,14 @@ static int wakeup_secondary_cpu_via_mip(int cpu, unsigned long eip)
return 0;
}
-static int __init es7000_update_genapic(void)
+static int __init es7000_update_apic(void)
{
apic->wakeup_cpu = wakeup_secondary_cpu_via_mip;
/* MPENTIUMIII */
if (boot_cpu_data.x86 == 6 &&
(boot_cpu_data.x86_model >= 7 || boot_cpu_data.x86_model <= 11)) {
- es7000_update_genapic_to_cluster();
+ es7000_update_apic_to_cluster();
apic->wait_for_init_deassert = NULL;
apic->wakeup_cpu = wakeup_secondary_cpu_via_mip;
}
@@ -196,8 +178,7 @@ static int __init es7000_update_genapic(void)
return 0;
}
-void __init
-setup_unisys(void)
+static void __init setup_unisys(void)
{
/*
* Determine the generation of the ES7000 currently running.
@@ -212,22 +193,20 @@ setup_unisys(void)
es7000_plat = ES7000_CLASSIC;
ioapic_renumber_irq = es7000_rename_gsi;
- x86_quirks->update_genapic = es7000_update_genapic;
+ x86_quirks->update_apic = es7000_update_apic;
}
/*
- * Parse the OEM Table
+ * Parse the OEM Table:
*/
-
-int __init
-parse_unisys_oem (char *oemptr)
+static int __init parse_unisys_oem(char *oemptr)
{
- int i;
+ int i;
int success = 0;
- unsigned char type, size;
- unsigned long val;
- char *tp = NULL;
- struct psai *psaip = NULL;
+ unsigned char type, size;
+ unsigned long val;
+ char *tp = NULL;
+ struct psai *psaip = NULL;
struct mip_reg_info *mi;
struct mip_reg *host, *mip;
@@ -235,7 +214,7 @@ parse_unisys_oem (char *oemptr)
tp += 8;
- for (i=0; i <= 6; i++) {
+ for (i = 0; i <= 6; i++) {
type = *tp++;
size = *tp++;
tp -= 2;
@@ -273,50 +252,96 @@ parse_unisys_oem (char *oemptr)
tp += size;
}
- if (success < 2) {
+ if (success < 2)
es7000_plat = NON_UNISYS;
- } else
+ else
setup_unisys();
+
return es7000_plat;
}
#ifdef CONFIG_ACPI
-static unsigned long oem_addrX;
-static unsigned long oem_size;
-int __init find_unisys_acpi_oem_table(unsigned long *oem_addr)
+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 oem_table *t = (struct oem_table *)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;
}
-void __init unmap_unisys_acpi_oem_table(unsigned long oem_addr)
+static void __init unmap_unisys_acpi_oem_table(unsigned long oem_addr)
{
if (!oem_addr)
return;
__acpi_unmap_table((char *)oem_addr, oem_size);
}
-#endif
-static void
-es7000_spin(int n)
+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)
{
int i = 0;
@@ -327,16 +352,15 @@ es7000_spin(int n)
static int __init
es7000_mip_write(struct mip_reg *mip_reg)
{
- int status = 0;
- int spin;
+ int status = 0;
+ int spin;
spin = MIP_SPIN;
- while (((unsigned long long)host_reg->off_38 &
- (unsigned long long)MIP_VALID) != 0) {
- if (--spin <= 0) {
- printk("es7000_mip_write: Timeout waiting for Host Valid Flag");
- return -1;
- }
+ while ((host_reg->off_0x38 & MIP_VALID) != 0) {
+ if (--spin <= 0) {
+ WARN(1, "Timeout waiting for Host Valid Flag\n");
+ return -1;
+ }
es7000_spin(MIP_SPIN);
}
@@ -345,23 +369,21 @@ es7000_mip_write(struct mip_reg *mip_reg)
spin = MIP_SPIN;
- while (((unsigned long long)mip_reg->off_38 &
- (unsigned long long)MIP_VALID) == 0) {
+ 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);
}
- status = ((unsigned long long)mip_reg->off_0 &
- (unsigned long long)0xffff0000000000ULL) >> 48;
- mip_reg->off_38 = ((unsigned long long)mip_reg->off_38 &
- (unsigned long long)~MIP_VALID);
+ status = (mip_reg->off_0x00 & 0xffff0000000000ULL) >> 48;
+ mip_reg->off_0x38 &= ~MIP_VALID;
+
return status;
}
-void __init es7000_enable_apic_mode(void)
+static void __init es7000_enable_apic_mode(void)
{
struct mip_reg es7000_mip_reg;
int mip_status;
@@ -369,53 +391,15 @@ void __init es7000_enable_apic_mode(void)
if (!es7000_plat)
return;
- printk("ES7000: Enabling APIC mode.\n");
- memset(&es7000_mip_reg, 0, sizeof(struct mip_reg));
- es7000_mip_reg.off_0 = MIP_SW_APIC;
- es7000_mip_reg.off_38 = MIP_VALID;
+ 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);
}
-/*
- * APIC driver for the Unisys ES7000 chipset.
- */
-#define APIC_DEFINITION 1
-#include <linux/threads.h>
-#include <linux/cpumask.h>
-#include <asm/mpspec.h>
-#include <asm/genapic.h>
-#include <asm/fixmap.h>
-#include <asm/apicdef.h>
-#include <linux/kernel.h>
-#include <linux/string.h>
-#include <linux/init.h>
-#include <linux/acpi.h>
-#include <linux/smp.h>
-#include <asm/ipi.h>
-
-#define APIC_DFR_VALUE_CLUSTER (APIC_DFR_CLUSTER)
-#define INT_DELIVERY_MODE_CLUSTER (dest_LowestPrio)
-#define INT_DEST_MODE_CLUSTER (1) /* logical delivery broadcast to all procs */
-
-#define APIC_DFR_VALUE (APIC_DFR_FLAT)
-
-extern void es7000_enable_apic_mode(void);
-extern int apic_version [MAX_APICS];
-extern u8 cpu_2_logical_apicid[];
-extern unsigned int boot_cpu_physical_apicid;
-
-extern int parse_unisys_oem (char *oemptr);
-extern int find_unisys_acpi_oem_table(unsigned long *oem_addr);
-extern void unmap_unisys_acpi_oem_table(unsigned long oem_addr);
-extern void setup_unisys(void);
-
-#define apicid_cluster(apicid) (apicid & 0xF0)
-#define xapic_phys_to_log_apicid(cpu) per_cpu(x86_bios_cpu_apicid, cpu)
-
static void es7000_vector_allocation_domain(int cpu, cpumask_t *retmask)
{
/* Careful. Some cpus do not strictly honor the set of cpus
@@ -444,18 +428,6 @@ static unsigned int es7000_get_apic_id(unsigned long x)
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);
@@ -473,7 +445,7 @@ static void es7000_send_IPI_all(int vector)
static int es7000_apic_id_registered(void)
{
- return 1;
+ return 1;
}
static const cpumask_t *target_cpus_cluster(void)
@@ -498,9 +470,9 @@ static unsigned long es7000_check_apicid_present(int bit)
static unsigned long calculate_ldr(int cpu)
{
- unsigned long id = xapic_phys_to_log_apicid(cpu);
+ unsigned long id = per_cpu(x86_bios_cpu_apicid, cpu);
- return (SET_APIC_LOGICAL_ID(id));
+ return SET_APIC_LOGICAL_ID(id);
}
/*
@@ -515,7 +487,7 @@ static void es7000_init_apic_ldr_cluster(void)
unsigned long val;
int cpu = smp_processor_id();
- apic_write(APIC_DFR, APIC_DFR_VALUE_CLUSTER);
+ apic_write(APIC_DFR, APIC_DFR_CLUSTER);
val = calculate_ldr(cpu);
apic_write(APIC_LDR, val);
}
@@ -525,7 +497,7 @@ static void es7000_init_apic_ldr(void)
unsigned long val;
int cpu = smp_processor_id();
- apic_write(APIC_DFR, APIC_DFR_VALUE);
+ apic_write(APIC_DFR, APIC_DFR_FLAT);
val = calculate_ldr(cpu);
apic_write(APIC_LDR, val);
}
@@ -533,10 +505,12 @@ static void es7000_init_apic_ldr(void)
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)
@@ -550,18 +524,19 @@ static int es7000_cpu_present_to_apicid(int mps_cpu)
if (!mps_cpu)
return boot_cpu_physical_apicid;
else if (mps_cpu < nr_cpu_ids)
- return (int) per_cpu(x86_bios_cpu_apicid, mps_cpu);
+ return per_cpu(x86_bios_cpu_apicid, mps_cpu);
else
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;
}
@@ -572,7 +547,7 @@ static int es7000_cpu_to_logical_apicid(int cpu)
#ifdef CONFIG_SMP
if (cpu >= nr_cpu_ids)
return BAD_APICID;
- return (int)cpu_2_logical_apicid[cpu];
+ return cpu_2_logical_apicid[cpu];
#else
return logical_smp_processor_id();
#endif
@@ -587,7 +562,7 @@ static physid_mask_t es7000_ioapic_phys_id_map(physid_mask_t phys_map)
static int es7000_check_phys_apicid_present(int cpu_physical_apicid)
{
boot_cpu_physical_apicid = read_apic_id();
- return (1);
+ return 1;
}
static unsigned int
@@ -613,9 +588,8 @@ es7000_cpu_mask_to_apicid_cluster(const struct cpumask *cpumask)
if (cpumask_test_cpu(cpu, cpumask)) {
int new_apicid = es7000_cpu_to_logical_apicid(cpu);
- if (apicid_cluster(apicid) !=
- apicid_cluster(new_apicid)) {
- printk ("%s: Not a valid mask!\n", __func__);
+ if (APIC_CLUSTER(apicid) != APIC_CLUSTER(new_apicid)) {
+ WARN(1, "Not a valid mask!");
return 0xFF;
}
@@ -648,9 +622,8 @@ static unsigned int es7000_cpu_mask_to_apicid(const cpumask_t *cpumask)
if (cpu_isset(cpu, *cpumask)) {
int new_apicid = es7000_cpu_to_logical_apicid(cpu);
- if (apicid_cluster(apicid) !=
- apicid_cluster(new_apicid)) {
- printk ("%s: Not a valid mask!\n", __func__);
+ if (APIC_CLUSTER(apicid) != APIC_CLUSTER(new_apicid)) {
+ printk("%s: Not a valid mask!\n", __func__);
return es7000_cpu_to_logical_apicid(0);
}
@@ -686,11 +659,12 @@ static int es7000_phys_pkg_id(int cpuid_apic, int index_msb)
return cpuid_apic >> index_msb;
}
-void __init es7000_update_genapic_to_cluster(void)
+void __init es7000_update_apic_to_cluster(void)
{
apic->target_cpus = target_cpus_cluster;
- apic->irq_delivery_mode = INT_DELIVERY_MODE_CLUSTER;
- apic->irq_dest_mode = INT_DEST_MODE_CLUSTER;
+ apic->irq_delivery_mode = dest_LowestPrio;
+ /* logical delivery broadcast to all procs: */
+ apic->irq_dest_mode = 1;
apic->init_apic_ldr = es7000_init_apic_ldr_cluster;
@@ -716,40 +690,8 @@ es7000_mps_oem_check(struct mpc_table *mpc, char *oem, char *productid)
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 = {
+struct apic apic_es7000 = {
.name = "es7000",
.probe = probe_es7000,
@@ -804,6 +746,12 @@ struct genapic apic_es7000 = {
/* Nothing to do for most platforms, since cleared by the INIT cycle: */
.smp_callin_clear_local_apic = NULL,
- .store_NMI_vector = NULL,
.inquire_remote_apic = default_inquire_remote_apic,
+
+ .read = native_apic_mem_read,
+ .write = native_apic_mem_write,
+ .icr_read = native_apic_icr_read,
+ .icr_write = native_apic_icr_write,
+ .wait_icr_idle = native_apic_wait_icr_idle,
+ .safe_wait_icr_idle = native_safe_apic_wait_icr_idle,
};
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-10-17 22:13:00 +0000