x86, um: ... and asm-x86 move

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>

1 files changed, 136 insertions, 0 deletions

diff --git a/arch/x86/include/asm/numaq/apic.h b/arch/x86/include/asm/numaq/apic.h
new file mode 100644
index 000000000000..0bf2a06b7a4e
--- /dev/null
+++ b/arch/x86/include/asm/numaq/apic.h
@@ -0,0 +1,136 @@
+#ifndef __ASM_NUMAQ_APIC_H
+#define __ASM_NUMAQ_APIC_H
+
+#include <asm/io.h>
+#include <linux/mmzone.h>
+#include <linux/nodemask.h>
+
+#define APIC_DFR_VALUE	(APIC_DFR_CLUSTER)
+
+static inline cpumask_t target_cpus(void)
+{
+	return CPU_MASK_ALL;
+}
+
+#define NO_BALANCE_IRQ (1)
+#define esr_disable (1)
+
+#define INT_DELIVERY_MODE dest_LowestPrio
+#define INT_DEST_MODE 0     /* physical delivery on LOCAL quad */
+ 
+static inline unsigned long check_apicid_used(physid_mask_t bitmap, int apicid)
+{
+	return physid_isset(apicid, bitmap);
+}
+static inline unsigned long check_apicid_present(int bit)
+{
+	return physid_isset(bit, phys_cpu_present_map);
+}
+#define apicid_cluster(apicid) (apicid & 0xF0)
+
+static inline int apic_id_registered(void)
+{
+	return 1;
+}
+
+static inline void init_apic_ldr(void)
+{
+	/* Already done in NUMA-Q firmware */
+}
+
+static inline void setup_apic_routing(void)
+{
+	printk("Enabling APIC mode:  %s.  Using %d I/O APICs\n",
+		"NUMA-Q", nr_ioapics);
+}
+
+/*
+ * Skip adding the timer int on secondary nodes, which causes
+ * a small but painful rift in the time-space continuum.
+ */
+static inline int multi_timer_check(int apic, int irq)
+{
+	return apic != 0 && irq == 0;
+}
+
+static inline physid_mask_t ioapic_phys_id_map(physid_mask_t phys_map)
+{
+	/* We don't have a good way to do this yet - hack */
+	return physids_promote(0xFUL);
+}
+
+/* Mapping from cpu number to logical apicid */
+extern u8 cpu_2_logical_apicid[];
+static inline int cpu_to_logical_apicid(int cpu)
+{
+       if (cpu >= NR_CPUS)
+	       return BAD_APICID;
+	return (int)cpu_2_logical_apicid[cpu];
+}
+
+/*
+ * Supporting over 60 cpus on NUMA-Q requires a locality-dependent
+ * cpu to APIC ID relation to properly interact with the intelligent
+ * mode of the cluster controller.
+ */
+static inline int cpu_present_to_apicid(int mps_cpu)
+{
+	if (mps_cpu < 60)
+		return ((mps_cpu >> 2) << 4) | (1 << (mps_cpu & 0x3));
+	else
+		return BAD_APICID;
+}
+
+static inline int apicid_to_node(int logical_apicid) 
+{
+	return logical_apicid >> 4;
+}
+
+static inline physid_mask_t apicid_to_cpu_present(int logical_apicid)
+{
+	int node = apicid_to_node(logical_apicid);
+	int cpu = __ffs(logical_apicid & 0xf);
+
+	return physid_mask_of_physid(cpu + 4*node);
+}
+
+extern void *xquad_portio;
+
+static inline void setup_portio_remap(void)
+{
+	int num_quads = num_online_nodes();
+
+	if (num_quads <= 1)
+       		return;
+
+	printk("Remapping cross-quad port I/O for %d quads\n", num_quads);
+	xquad_portio = ioremap(XQUAD_PORTIO_BASE, num_quads*XQUAD_PORTIO_QUAD);
+	printk("xquad_portio vaddr 0x%08lx, len %08lx\n",
+		(u_long) xquad_portio, (u_long) num_quads*XQUAD_PORTIO_QUAD);
+}
+
+static inline int check_phys_apicid_present(int boot_cpu_physical_apicid)
+{
+	return (1);
+}
+
+static inline void enable_apic_mode(void)
+{
+}
+
+/*
+ * We use physical apicids here, not logical, so just return the default
+ * physical broadcast to stop people from breaking us
+ */
+static inline unsigned int cpu_mask_to_apicid(cpumask_t cpumask)
+{
+	return (int) 0xF;
+}
+
+/* No NUMA-Q box has a HT CPU, but it can't hurt to use the default code. */
+static inline u32 phys_pkg_id(u32 cpuid_apic, int index_msb)
+{
+	return cpuid_apic >> index_msb;
+}
+
+#endif /* __ASM_NUMAQ_APIC_H */