x86, ES7000: consolidate the APIC code
[sfrench/cifs-2.6.git] / arch / x86 / mach-generic / es7000.c
index be090b2037ca1f5ee611e49328547bad305eb0d8..8b6113ec380cda8510956461d7641e48c410acb6 100644 (file)
 #include <linux/kernel.h>
 #include <linux/string.h>
 #include <linux/init.h>
-#include <asm/es7000/apicdef.h>
+#include <linux/acpi.h>
 #include <linux/smp.h>
-#include <asm/es7000/apic.h>
-#include <asm/es7000/ipi.h>
-#include <asm/es7000/mpparse.h>
+#include <asm/ipi.h>
 #include <asm/mach-default/mach_wakecpu.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
+        * specified in the interrupt destination when using lowest
+        * priority interrupt delivery mode.
+        *
+        * In particular there was a hyperthreading cpu observed to
+        * deliver interrupts to the wrong hyperthread when only one
+        * hyperthread was specified in the interrupt desitination.
+        */
+       *retmask = (cpumask_t){ { [0] = APIC_ALL_CPUS, } };
+}
+
+
+static void es7000_wait_for_init_deassert(atomic_t *deassert)
+{
+#ifndef CONFIG_ES7000_CLUSTERED_APIC
+       while (!atomic_read(deassert))
+               cpu_relax();
+#endif
+       return;
+}
+
+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(mask, vector);
+}
+
+static void es7000_send_IPI_allbutself(int vector)
+{
+       default_send_IPI_mask_allbutself(cpu_online_mask, vector);
+}
+
+static void es7000_send_IPI_all(int vector)
+{
+       es7000_send_IPI_mask(cpu_online_mask, vector);
+}
+
+static int es7000_apic_id_registered(void)
+{
+               return 1;
+}
+
+static const cpumask_t *target_cpus_cluster(void)
+{
+       return &CPU_MASK_ALL;
+}
+
+static const cpumask_t *es7000_target_cpus(void)
+{
+       return &cpumask_of_cpu(smp_processor_id());
+}
+
+static unsigned long
+es7000_check_apicid_used(physid_mask_t bitmap, int apicid)
+{
+       return 0;
+}
+static unsigned long es7000_check_apicid_present(int bit)
+{
+       return physid_isset(bit, phys_cpu_present_map);
+}
+
+static unsigned long calculate_ldr(int cpu)
+{
+       unsigned long id = xapic_phys_to_log_apicid(cpu);
+
+       return (SET_APIC_LOGICAL_ID(id));
+}
+
+/*
+ * Set up the logical destination ID.
+ *
+ * Intel recommends to set DFR, LdR and TPR before enabling
+ * an APIC.  See e.g. "AP-388 82489DX User's Manual" (Intel
+ * document number 292116).  So here it goes...
+ */
+static void es7000_init_apic_ldr_cluster(void)
+{
+       unsigned long val;
+       int cpu = smp_processor_id();
+
+       apic_write(APIC_DFR, APIC_DFR_VALUE_CLUSTER);
+       val = calculate_ldr(cpu);
+       apic_write(APIC_LDR, val);
+}
+
+static void es7000_init_apic_ldr(void)
+{
+       unsigned long val;
+       int cpu = smp_processor_id();
+
+       apic_write(APIC_DFR, APIC_DFR_VALUE);
+       val = calculate_ldr(cpu);
+       apic_write(APIC_LDR, val);
+}
+
+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",
+               (apic_version[apic] == 0x14) ?
+                       "Physical Cluster" : "Logical Cluster",
+                       nr_ioapics, cpus_addr(*es7000_target_cpus())[0]);
+}
+
+static int es7000_apicid_to_node(int logical_apicid)
+{
+       return 0;
+}
+
+
+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);
+       else
+               return BAD_APICID;
+}
+
+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;
+
+       return mask;
+}
+
+/* Mapping from cpu number to logical apicid */
+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];
+#else
+       return logical_smp_processor_id();
+#endif
+}
+
+static physid_mask_t es7000_ioapic_phys_id_map(physid_mask_t phys_map)
+{
+       /* For clustered we don't have a good way to do this yet - hack */
+       return physids_promote(0xff);
+}
+
+static int es7000_check_phys_apicid_present(int cpu_physical_apicid)
+{
+       boot_cpu_physical_apicid = read_apic_id();
+       return (1);
+}
+
+static unsigned int
+es7000_cpu_mask_to_apicid_cluster(const struct cpumask *cpumask)
+{
+       int cpus_found = 0;
+       int num_bits_set;
+       int apicid;
+       int cpu;
+
+       num_bits_set = cpumask_weight(cpumask);
+       /* Return id to all */
+       if (num_bits_set == nr_cpu_ids)
+               return 0xFF;
+       /*
+        * The cpus in the mask must all be on the apic cluster.  If are not
+        * on the same apicid cluster return default value of target_cpus():
+        */
+       cpu = cpumask_first(cpumask);
+       apicid = es7000_cpu_to_logical_apicid(cpu);
+
+       while (cpus_found < num_bits_set) {
+               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__);
+
+                               return 0xFF;
+                       }
+                       apicid = new_apicid;
+                       cpus_found++;
+               }
+               cpu++;
+       }
+       return apicid;
+}
+
+static unsigned int es7000_cpu_mask_to_apicid(const cpumask_t *cpumask)
+{
+       int cpus_found = 0;
+       int num_bits_set;
+       int apicid;
+       int cpu;
+
+       num_bits_set = cpus_weight(*cpumask);
+       /* Return id to all */
+       if (num_bits_set == nr_cpu_ids)
+               return es7000_cpu_to_logical_apicid(0);
+       /*
+        * The cpus in the mask must all be on the apic cluster.  If are not
+        * on the same apicid cluster return default value of target_cpus():
+        */
+       cpu = first_cpu(*cpumask);
+       apicid = es7000_cpu_to_logical_apicid(cpu);
+       while (cpus_found < num_bits_set) {
+               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__);
+
+                               return es7000_cpu_to_logical_apicid(0);
+                       }
+                       apicid = new_apicid;
+                       cpus_found++;
+               }
+               cpu++;
+       }
+       return apicid;
+}
+
+static unsigned int
+es7000_cpu_mask_to_apicid_and(const struct cpumask *inmask,
+                             const struct cpumask *andmask)
+{
+       int apicid = es7000_cpu_to_logical_apicid(0);
+       cpumask_var_t cpumask;
+
+       if (!alloc_cpumask_var(&cpumask, GFP_ATOMIC))
+               return apicid;
+
+       cpumask_and(cpumask, inmask, andmask);
+       cpumask_and(cpumask, cpumask, cpu_online_mask);
+       apicid = es7000_cpu_mask_to_apicid(cpumask);
+
+       free_cpumask_var(cpumask);
+
+       return apicid;
+}
+
+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)
 {
        apic->target_cpus = target_cpus_cluster;
@@ -80,18 +367,6 @@ static int __init es7000_acpi_madt_oem_check(char *oem_id, char *oem_table_id)
 }
 #endif
 
-static void es7000_vector_allocation_domain(int cpu, cpumask_t *retmask)
-{
-       /* Careful. Some cpus do not strictly honor the set of cpus
-        * specified in the interrupt destination when using lowest
-        * priority interrupt delivery mode.
-        *
-        * In particular there was a hyperthreading cpu observed to
-        * deliver interrupts to the wrong hyperthread when only one
-        * hyperthread was specified in the interrupt desitination.
-        */
-       *retmask = (cpumask_t){ { [0] = APIC_ALL_CPUS, } };
-}
 
 struct genapic apic_es7000 = {
 
@@ -140,10 +415,11 @@ struct genapic apic_es7000 = {
        .send_IPI_self                  = NULL,
 
        .wakeup_cpu                     = NULL,
-       .trampoline_phys_low            = DEFAULT_TRAMPOLINE_PHYS_LOW,
-       .trampoline_phys_high           = DEFAULT_TRAMPOLINE_PHYS_HIGH,
 
-       .wait_for_init_deassert         = default_wait_for_init_deassert,
+       .trampoline_phys_low            = 0x467,
+       .trampoline_phys_high           = 0x469,
+
+       .wait_for_init_deassert         = es7000_wait_for_init_deassert,
 
        /* Nothing to do for most platforms, since cleared by the INIT cycle: */
        .smp_callin_clear_local_apic    = NULL,