Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
diff --git a/include/asm-ia64/sn/sn_sal.h b/include/asm-ia64/sn/sn_sal.h
new file mode 100644
index 0000000..88c31b5
--- /dev/null
+++ b/include/asm-ia64/sn/sn_sal.h
@@ -0,0 +1,1015 @@
+#ifndef _ASM_IA64_SN_SN_SAL_H
+#define _ASM_IA64_SN_SN_SAL_H
+
+/*
+ * System Abstraction Layer definitions for IA64
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (c) 2000-2004 Silicon Graphics, Inc. All rights reserved.
+ */
+
+
+#include <linux/config.h>
+#include <asm/sal.h>
+#include <asm/sn/sn_cpuid.h>
+#include <asm/sn/arch.h>
+#include <asm/sn/geo.h>
+#include <asm/sn/nodepda.h>
+#include <asm/sn/shub_mmr.h>
+
+// SGI Specific Calls
+#define SN_SAL_POD_MODE 0x02000001
+#define SN_SAL_SYSTEM_RESET 0x02000002
+#define SN_SAL_PROBE 0x02000003
+#define SN_SAL_GET_MASTER_NASID 0x02000004
+#define SN_SAL_GET_KLCONFIG_ADDR 0x02000005
+#define SN_SAL_LOG_CE 0x02000006
+#define SN_SAL_REGISTER_CE 0x02000007
+#define SN_SAL_GET_PARTITION_ADDR 0x02000009
+#define SN_SAL_XP_ADDR_REGION 0x0200000f
+#define SN_SAL_NO_FAULT_ZONE_VIRTUAL 0x02000010
+#define SN_SAL_NO_FAULT_ZONE_PHYSICAL 0x02000011
+#define SN_SAL_PRINT_ERROR 0x02000012
+#define SN_SAL_SET_ERROR_HANDLING_FEATURES 0x0200001a // reentrant
+#define SN_SAL_GET_FIT_COMPT 0x0200001b // reentrant
+#define SN_SAL_GET_SN_INFO 0x0200001c
+#define SN_SAL_GET_SAPIC_INFO 0x0200001d
+#define SN_SAL_CONSOLE_PUTC 0x02000021
+#define SN_SAL_CONSOLE_GETC 0x02000022
+#define SN_SAL_CONSOLE_PUTS 0x02000023
+#define SN_SAL_CONSOLE_GETS 0x02000024
+#define SN_SAL_CONSOLE_GETS_TIMEOUT 0x02000025
+#define SN_SAL_CONSOLE_POLL 0x02000026
+#define SN_SAL_CONSOLE_INTR 0x02000027
+#define SN_SAL_CONSOLE_PUTB 0x02000028
+#define SN_SAL_CONSOLE_XMIT_CHARS 0x0200002a
+#define SN_SAL_CONSOLE_READC 0x0200002b
+#define SN_SAL_SYSCTL_MODID_GET 0x02000031
+#define SN_SAL_SYSCTL_GET 0x02000032
+#define SN_SAL_SYSCTL_IOBRICK_MODULE_GET 0x02000033
+#define SN_SAL_SYSCTL_IO_PORTSPEED_GET 0x02000035
+#define SN_SAL_SYSCTL_SLAB_GET 0x02000036
+#define SN_SAL_BUS_CONFIG 0x02000037
+#define SN_SAL_SYS_SERIAL_GET 0x02000038
+#define SN_SAL_PARTITION_SERIAL_GET 0x02000039
+#define SN_SAL_SYSCTL_PARTITION_GET 0x0200003a
+#define SN_SAL_SYSTEM_POWER_DOWN 0x0200003b
+#define SN_SAL_GET_MASTER_BASEIO_NASID 0x0200003c
+#define SN_SAL_COHERENCE 0x0200003d
+#define SN_SAL_MEMPROTECT 0x0200003e
+#define SN_SAL_SYSCTL_FRU_CAPTURE 0x0200003f
+
+#define SN_SAL_SYSCTL_IOBRICK_PCI_OP 0x02000042 // reentrant
+#define SN_SAL_IROUTER_OP 0x02000043
+#define SN_SAL_IOIF_INTERRUPT 0x0200004a
+#define SN_SAL_HWPERF_OP 0x02000050 // lock
+#define SN_SAL_IOIF_ERROR_INTERRUPT 0x02000051
+
+#define SN_SAL_IOIF_SLOT_ENABLE 0x02000053
+#define SN_SAL_IOIF_SLOT_DISABLE 0x02000054
+#define SN_SAL_IOIF_GET_HUBDEV_INFO 0x02000055
+#define SN_SAL_IOIF_GET_PCIBUS_INFO 0x02000056
+#define SN_SAL_IOIF_GET_PCIDEV_INFO 0x02000057
+#define SN_SAL_IOIF_GET_WIDGET_DMAFLUSH_LIST 0x02000058
+
+#define SN_SAL_HUB_ERROR_INTERRUPT 0x02000060
+
+
+/*
+ * Service-specific constants
+ */
+
+/* Console interrupt manipulation */
+ /* action codes */
+#define SAL_CONSOLE_INTR_OFF 0 /* turn the interrupt off */
+#define SAL_CONSOLE_INTR_ON 1 /* turn the interrupt on */
+#define SAL_CONSOLE_INTR_STATUS 2 /* retrieve the interrupt status */
+ /* interrupt specification & status return codes */
+#define SAL_CONSOLE_INTR_XMIT 1 /* output interrupt */
+#define SAL_CONSOLE_INTR_RECV 2 /* input interrupt */
+
+/* interrupt handling */
+#define SAL_INTR_ALLOC 1
+#define SAL_INTR_FREE 2
+
+/*
+ * IRouter (i.e. generalized system controller) operations
+ */
+#define SAL_IROUTER_OPEN 0 /* open a subchannel */
+#define SAL_IROUTER_CLOSE 1 /* close a subchannel */
+#define SAL_IROUTER_SEND 2 /* send part of an IRouter packet */
+#define SAL_IROUTER_RECV 3 /* receive part of an IRouter packet */
+#define SAL_IROUTER_INTR_STATUS 4 /* check the interrupt status for
+ * an open subchannel
+ */
+#define SAL_IROUTER_INTR_ON 5 /* enable an interrupt */
+#define SAL_IROUTER_INTR_OFF 6 /* disable an interrupt */
+#define SAL_IROUTER_INIT 7 /* initialize IRouter driver */
+
+/* IRouter interrupt mask bits */
+#define SAL_IROUTER_INTR_XMIT SAL_CONSOLE_INTR_XMIT
+#define SAL_IROUTER_INTR_RECV SAL_CONSOLE_INTR_RECV
+
+
+/*
+ * SAL Error Codes
+ */
+#define SALRET_MORE_PASSES 1
+#define SALRET_OK 0
+#define SALRET_NOT_IMPLEMENTED (-1)
+#define SALRET_INVALID_ARG (-2)
+#define SALRET_ERROR (-3)
+
+
+/**
+ * sn_sal_rev_major - get the major SGI SAL revision number
+ *
+ * The SGI PROM stores its version in sal_[ab]_rev_(major|minor).
+ * This routine simply extracts the major value from the
+ * @ia64_sal_systab structure constructed by ia64_sal_init().
+ */
+static inline int
+sn_sal_rev_major(void)
+{
+ struct ia64_sal_systab *systab = efi.sal_systab;
+
+ return (int)systab->sal_b_rev_major;
+}
+
+/**
+ * sn_sal_rev_minor - get the minor SGI SAL revision number
+ *
+ * The SGI PROM stores its version in sal_[ab]_rev_(major|minor).
+ * This routine simply extracts the minor value from the
+ * @ia64_sal_systab structure constructed by ia64_sal_init().
+ */
+static inline int
+sn_sal_rev_minor(void)
+{
+ struct ia64_sal_systab *systab = efi.sal_systab;
+
+ return (int)systab->sal_b_rev_minor;
+}
+
+/*
+ * Specify the minimum PROM revsion required for this kernel.
+ * Note that they're stored in hex format...
+ */
+#define SN_SAL_MIN_MAJOR 0x4 /* SN2 kernels need at least PROM 4.0 */
+#define SN_SAL_MIN_MINOR 0x0
+
+/*
+ * Returns the master console nasid, if the call fails, return an illegal
+ * value.
+ */
+static inline u64
+ia64_sn_get_console_nasid(void)
+{
+ struct ia64_sal_retval ret_stuff;
+
+ ret_stuff.status = 0;
+ ret_stuff.v0 = 0;
+ ret_stuff.v1 = 0;
+ ret_stuff.v2 = 0;
+ SAL_CALL(ret_stuff, SN_SAL_GET_MASTER_NASID, 0, 0, 0, 0, 0, 0, 0);
+
+ if (ret_stuff.status < 0)
+ return ret_stuff.status;
+
+ /* Master console nasid is in 'v0' */
+ return ret_stuff.v0;
+}
+
+/*
+ * Returns the master baseio nasid, if the call fails, return an illegal
+ * value.
+ */
+static inline u64
+ia64_sn_get_master_baseio_nasid(void)
+{
+ struct ia64_sal_retval ret_stuff;
+
+ ret_stuff.status = 0;
+ ret_stuff.v0 = 0;
+ ret_stuff.v1 = 0;
+ ret_stuff.v2 = 0;
+ SAL_CALL(ret_stuff, SN_SAL_GET_MASTER_BASEIO_NASID, 0, 0, 0, 0, 0, 0, 0);
+
+ if (ret_stuff.status < 0)
+ return ret_stuff.status;
+
+ /* Master baseio nasid is in 'v0' */
+ return ret_stuff.v0;
+}
+
+static inline char *
+ia64_sn_get_klconfig_addr(nasid_t nasid)
+{
+ struct ia64_sal_retval ret_stuff;
+ int cnodeid;
+
+ cnodeid = nasid_to_cnodeid(nasid);
+ ret_stuff.status = 0;
+ ret_stuff.v0 = 0;
+ ret_stuff.v1 = 0;
+ ret_stuff.v2 = 0;
+ SAL_CALL(ret_stuff, SN_SAL_GET_KLCONFIG_ADDR, (u64)nasid, 0, 0, 0, 0, 0, 0);
+
+ /*
+ * We should panic if a valid cnode nasid does not produce
+ * a klconfig address.
+ */
+ if (ret_stuff.status != 0) {
+ panic("ia64_sn_get_klconfig_addr: Returned error %lx\n", ret_stuff.status);
+ }
+ return ret_stuff.v0 ? __va(ret_stuff.v0) : NULL;
+}
+
+/*
+ * Returns the next console character.
+ */
+static inline u64
+ia64_sn_console_getc(int *ch)
+{
+ struct ia64_sal_retval ret_stuff;
+
+ ret_stuff.status = 0;
+ ret_stuff.v0 = 0;
+ ret_stuff.v1 = 0;
+ ret_stuff.v2 = 0;
+ SAL_CALL_NOLOCK(ret_stuff, SN_SAL_CONSOLE_GETC, 0, 0, 0, 0, 0, 0, 0);
+
+ /* character is in 'v0' */
+ *ch = (int)ret_stuff.v0;
+
+ return ret_stuff.status;
+}
+
+/*
+ * Read a character from the SAL console device, after a previous interrupt
+ * or poll operation has given us to know that a character is available
+ * to be read.
+ */
+static inline u64
+ia64_sn_console_readc(void)
+{
+ struct ia64_sal_retval ret_stuff;
+
+ ret_stuff.status = 0;
+ ret_stuff.v0 = 0;
+ ret_stuff.v1 = 0;
+ ret_stuff.v2 = 0;
+ SAL_CALL_NOLOCK(ret_stuff, SN_SAL_CONSOLE_READC, 0, 0, 0, 0, 0, 0, 0);
+
+ /* character is in 'v0' */
+ return ret_stuff.v0;
+}
+
+/*
+ * Sends the given character to the console.
+ */
+static inline u64
+ia64_sn_console_putc(char ch)
+{
+ struct ia64_sal_retval ret_stuff;
+
+ ret_stuff.status = 0;
+ ret_stuff.v0 = 0;
+ ret_stuff.v1 = 0;
+ ret_stuff.v2 = 0;
+ SAL_CALL_NOLOCK(ret_stuff, SN_SAL_CONSOLE_PUTC, (uint64_t)ch, 0, 0, 0, 0, 0, 0);
+
+ return ret_stuff.status;
+}
+
+/*
+ * Sends the given buffer to the console.
+ */
+static inline u64
+ia64_sn_console_putb(const char *buf, int len)
+{
+ struct ia64_sal_retval ret_stuff;
+
+ ret_stuff.status = 0;
+ ret_stuff.v0 = 0;
+ ret_stuff.v1 = 0;
+ ret_stuff.v2 = 0;
+ SAL_CALL_NOLOCK(ret_stuff, SN_SAL_CONSOLE_PUTB, (uint64_t)buf, (uint64_t)len, 0, 0, 0, 0, 0);
+
+ if ( ret_stuff.status == 0 ) {
+ return ret_stuff.v0;
+ }
+ return (u64)0;
+}
+
+/*
+ * Print a platform error record
+ */
+static inline u64
+ia64_sn_plat_specific_err_print(int (*hook)(const char*, ...), char *rec)
+{
+ struct ia64_sal_retval ret_stuff;
+
+ ret_stuff.status = 0;
+ ret_stuff.v0 = 0;
+ ret_stuff.v1 = 0;
+ ret_stuff.v2 = 0;
+ SAL_CALL_REENTRANT(ret_stuff, SN_SAL_PRINT_ERROR, (uint64_t)hook, (uint64_t)rec, 0, 0, 0, 0, 0);
+
+ return ret_stuff.status;
+}
+
+/*
+ * Check for Platform errors
+ */
+static inline u64
+ia64_sn_plat_cpei_handler(void)
+{
+ struct ia64_sal_retval ret_stuff;
+
+ ret_stuff.status = 0;
+ ret_stuff.v0 = 0;
+ ret_stuff.v1 = 0;
+ ret_stuff.v2 = 0;
+ SAL_CALL_NOLOCK(ret_stuff, SN_SAL_LOG_CE, 0, 0, 0, 0, 0, 0, 0);
+
+ return ret_stuff.status;
+}
+
+/*
+ * Checks for console input.
+ */
+static inline u64
+ia64_sn_console_check(int *result)
+{
+ struct ia64_sal_retval ret_stuff;
+
+ ret_stuff.status = 0;
+ ret_stuff.v0 = 0;
+ ret_stuff.v1 = 0;
+ ret_stuff.v2 = 0;
+ SAL_CALL_NOLOCK(ret_stuff, SN_SAL_CONSOLE_POLL, 0, 0, 0, 0, 0, 0, 0);
+
+ /* result is in 'v0' */
+ *result = (int)ret_stuff.v0;
+
+ return ret_stuff.status;
+}
+
+/*
+ * Checks console interrupt status
+ */
+static inline u64
+ia64_sn_console_intr_status(void)
+{
+ struct ia64_sal_retval ret_stuff;
+
+ ret_stuff.status = 0;
+ ret_stuff.v0 = 0;
+ ret_stuff.v1 = 0;
+ ret_stuff.v2 = 0;
+ SAL_CALL_NOLOCK(ret_stuff, SN_SAL_CONSOLE_INTR,
+ 0, SAL_CONSOLE_INTR_STATUS,
+ 0, 0, 0, 0, 0);
+
+ if (ret_stuff.status == 0) {
+ return ret_stuff.v0;
+ }
+
+ return 0;
+}
+
+/*
+ * Enable an interrupt on the SAL console device.
+ */
+static inline void
+ia64_sn_console_intr_enable(uint64_t intr)
+{
+ struct ia64_sal_retval ret_stuff;
+
+ ret_stuff.status = 0;
+ ret_stuff.v0 = 0;
+ ret_stuff.v1 = 0;
+ ret_stuff.v2 = 0;
+ SAL_CALL_NOLOCK(ret_stuff, SN_SAL_CONSOLE_INTR,
+ intr, SAL_CONSOLE_INTR_ON,
+ 0, 0, 0, 0, 0);
+}
+
+/*
+ * Disable an interrupt on the SAL console device.
+ */
+static inline void
+ia64_sn_console_intr_disable(uint64_t intr)
+{
+ struct ia64_sal_retval ret_stuff;
+
+ ret_stuff.status = 0;
+ ret_stuff.v0 = 0;
+ ret_stuff.v1 = 0;
+ ret_stuff.v2 = 0;
+ SAL_CALL_NOLOCK(ret_stuff, SN_SAL_CONSOLE_INTR,
+ intr, SAL_CONSOLE_INTR_OFF,
+ 0, 0, 0, 0, 0);
+}
+
+/*
+ * Sends a character buffer to the console asynchronously.
+ */
+static inline u64
+ia64_sn_console_xmit_chars(char *buf, int len)
+{
+ struct ia64_sal_retval ret_stuff;
+
+ ret_stuff.status = 0;
+ ret_stuff.v0 = 0;
+ ret_stuff.v1 = 0;
+ ret_stuff.v2 = 0;
+ SAL_CALL_NOLOCK(ret_stuff, SN_SAL_CONSOLE_XMIT_CHARS,
+ (uint64_t)buf, (uint64_t)len,
+ 0, 0, 0, 0, 0);
+
+ if (ret_stuff.status == 0) {
+ return ret_stuff.v0;
+ }
+
+ return 0;
+}
+
+/*
+ * Returns the iobrick module Id
+ */
+static inline u64
+ia64_sn_sysctl_iobrick_module_get(nasid_t nasid, int *result)
+{
+ struct ia64_sal_retval ret_stuff;
+
+ ret_stuff.status = 0;
+ ret_stuff.v0 = 0;
+ ret_stuff.v1 = 0;
+ ret_stuff.v2 = 0;
+ SAL_CALL_NOLOCK(ret_stuff, SN_SAL_SYSCTL_IOBRICK_MODULE_GET, nasid, 0, 0, 0, 0, 0, 0);
+
+ /* result is in 'v0' */
+ *result = (int)ret_stuff.v0;
+
+ return ret_stuff.status;
+}
+
+/**
+ * ia64_sn_pod_mode - call the SN_SAL_POD_MODE function
+ *
+ * SN_SAL_POD_MODE actually takes an argument, but it's always
+ * 0 when we call it from the kernel, so we don't have to expose
+ * it to the caller.
+ */
+static inline u64
+ia64_sn_pod_mode(void)
+{
+ struct ia64_sal_retval isrv;
+ SAL_CALL(isrv, SN_SAL_POD_MODE, 0, 0, 0, 0, 0, 0, 0);
+ if (isrv.status)
+ return 0;
+ return isrv.v0;
+}
+
+/**
+ * ia64_sn_probe_mem - read from memory safely
+ * @addr: address to probe
+ * @size: number bytes to read (1,2,4,8)
+ * @data_ptr: address to store value read by probe (-1 returned if probe fails)
+ *
+ * Call into the SAL to do a memory read. If the read generates a machine
+ * check, this routine will recover gracefully and return -1 to the caller.
+ * @addr is usually a kernel virtual address in uncached space (i.e. the
+ * address starts with 0xc), but if called in physical mode, @addr should
+ * be a physical address.
+ *
+ * Return values:
+ * 0 - probe successful
+ * 1 - probe failed (generated MCA)
+ * 2 - Bad arg
+ * <0 - PAL error
+ */
+static inline u64
+ia64_sn_probe_mem(long addr, long size, void *data_ptr)
+{
+ struct ia64_sal_retval isrv;
+
+ SAL_CALL(isrv, SN_SAL_PROBE, addr, size, 0, 0, 0, 0, 0);
+
+ if (data_ptr) {
+ switch (size) {
+ case 1:
+ *((u8*)data_ptr) = (u8)isrv.v0;
+ break;
+ case 2:
+ *((u16*)data_ptr) = (u16)isrv.v0;
+ break;
+ case 4:
+ *((u32*)data_ptr) = (u32)isrv.v0;
+ break;
+ case 8:
+ *((u64*)data_ptr) = (u64)isrv.v0;
+ break;
+ default:
+ isrv.status = 2;
+ }
+ }
+ return isrv.status;
+}
+
+/*
+ * Retrieve the system serial number as an ASCII string.
+ */
+static inline u64
+ia64_sn_sys_serial_get(char *buf)
+{
+ struct ia64_sal_retval ret_stuff;
+ SAL_CALL_NOLOCK(ret_stuff, SN_SAL_SYS_SERIAL_GET, buf, 0, 0, 0, 0, 0, 0);
+ return ret_stuff.status;
+}
+
+extern char sn_system_serial_number_string[];
+extern u64 sn_partition_serial_number;
+
+static inline char *
+sn_system_serial_number(void) {
+ if (sn_system_serial_number_string[0]) {
+ return(sn_system_serial_number_string);
+ } else {
+ ia64_sn_sys_serial_get(sn_system_serial_number_string);
+ return(sn_system_serial_number_string);
+ }
+}
+
+
+/*
+ * Returns a unique id number for this system and partition (suitable for
+ * use with license managers), based in part on the system serial number.
+ */
+static inline u64
+ia64_sn_partition_serial_get(void)
+{
+ struct ia64_sal_retval ret_stuff;
+ SAL_CALL(ret_stuff, SN_SAL_PARTITION_SERIAL_GET, 0, 0, 0, 0, 0, 0, 0);
+ if (ret_stuff.status != 0)
+ return 0;
+ return ret_stuff.v0;
+}
+
+static inline u64
+sn_partition_serial_number_val(void) {
+ if (sn_partition_serial_number) {
+ return(sn_partition_serial_number);
+ } else {
+ return(sn_partition_serial_number = ia64_sn_partition_serial_get());
+ }
+}
+
+/*
+ * Returns the partition id of the nasid passed in as an argument,
+ * or INVALID_PARTID if the partition id cannot be retrieved.
+ */
+static inline partid_t
+ia64_sn_sysctl_partition_get(nasid_t nasid)
+{
+ struct ia64_sal_retval ret_stuff;
+ SAL_CALL(ret_stuff, SN_SAL_SYSCTL_PARTITION_GET, nasid,
+ 0, 0, 0, 0, 0, 0);
+ if (ret_stuff.status != 0)
+ return INVALID_PARTID;
+ return ((partid_t)ret_stuff.v0);
+}
+
+/*
+ * Returns the partition id of the current processor.
+ */
+
+extern partid_t sn_partid;
+
+static inline partid_t
+sn_local_partid(void) {
+ if (sn_partid < 0) {
+ return (sn_partid = ia64_sn_sysctl_partition_get(cpuid_to_nasid(smp_processor_id())));
+ } else {
+ return sn_partid;
+ }
+}
+
+/*
+ * Register or unregister a physical address range being referenced across
+ * a partition boundary for which certain SAL errors should be scanned for,
+ * cleaned up and ignored. This is of value for kernel partitioning code only.
+ * Values for the operation argument:
+ * 1 = register this address range with SAL
+ * 0 = unregister this address range with SAL
+ *
+ * SAL maintains a reference count on an address range in case it is registered
+ * multiple times.
+ *
+ * On success, returns the reference count of the address range after the SAL
+ * call has performed the current registration/unregistration. Returns a
+ * negative value if an error occurred.
+ */
+static inline int
+sn_register_xp_addr_region(u64 paddr, u64 len, int operation)
+{
+ struct ia64_sal_retval ret_stuff;
+ SAL_CALL(ret_stuff, SN_SAL_XP_ADDR_REGION, paddr, len, (u64)operation,
+ 0, 0, 0, 0);
+ return ret_stuff.status;
+}
+
+/*
+ * Register or unregister an instruction range for which SAL errors should
+ * be ignored. If an error occurs while in the registered range, SAL jumps
+ * to return_addr after ignoring the error. Values for the operation argument:
+ * 1 = register this instruction range with SAL
+ * 0 = unregister this instruction range with SAL
+ *
+ * Returns 0 on success, or a negative value if an error occurred.
+ */
+static inline int
+sn_register_nofault_code(u64 start_addr, u64 end_addr, u64 return_addr,
+ int virtual, int operation)
+{
+ struct ia64_sal_retval ret_stuff;
+ u64 call;
+ if (virtual) {
+ call = SN_SAL_NO_FAULT_ZONE_VIRTUAL;
+ } else {
+ call = SN_SAL_NO_FAULT_ZONE_PHYSICAL;
+ }
+ SAL_CALL(ret_stuff, call, start_addr, end_addr, return_addr, (u64)1,
+ 0, 0, 0);
+ return ret_stuff.status;
+}
+
+/*
+ * Change or query the coherence domain for this partition. Each cpu-based
+ * nasid is represented by a bit in an array of 64-bit words:
+ * 0 = not in this partition's coherency domain
+ * 1 = in this partition's coherency domain
+ *
+ * It is not possible for the local system's nasids to be removed from
+ * the coherency domain. Purpose of the domain arguments:
+ * new_domain = set the coherence domain to the given nasids
+ * old_domain = return the current coherence domain
+ *
+ * Returns 0 on success, or a negative value if an error occurred.
+ */
+static inline int
+sn_change_coherence(u64 *new_domain, u64 *old_domain)
+{
+ struct ia64_sal_retval ret_stuff;
+ SAL_CALL(ret_stuff, SN_SAL_COHERENCE, new_domain, old_domain, 0, 0,
+ 0, 0, 0);
+ return ret_stuff.status;
+}
+
+/*
+ * Change memory access protections for a physical address range.
+ * nasid_array is not used on Altix, but may be in future architectures.
+ * Available memory protection access classes are defined after the function.
+ */
+static inline int
+sn_change_memprotect(u64 paddr, u64 len, u64 perms, u64 *nasid_array)
+{
+ struct ia64_sal_retval ret_stuff;
+ int cnodeid;
+ unsigned long irq_flags;
+
+ cnodeid = nasid_to_cnodeid(get_node_number(paddr));
+ // spin_lock(&NODEPDA(cnodeid)->bist_lock);
+ local_irq_save(irq_flags);
+ SAL_CALL_NOLOCK(ret_stuff, SN_SAL_MEMPROTECT, paddr, len, nasid_array,
+ perms, 0, 0, 0);
+ local_irq_restore(irq_flags);
+ // spin_unlock(&NODEPDA(cnodeid)->bist_lock);
+ return ret_stuff.status;
+}
+#define SN_MEMPROT_ACCESS_CLASS_0 0x14a080
+#define SN_MEMPROT_ACCESS_CLASS_1 0x2520c2
+#define SN_MEMPROT_ACCESS_CLASS_2 0x14a1ca
+#define SN_MEMPROT_ACCESS_CLASS_3 0x14a290
+#define SN_MEMPROT_ACCESS_CLASS_6 0x084080
+#define SN_MEMPROT_ACCESS_CLASS_7 0x021080
+
+/*
+ * Turns off system power.
+ */
+static inline void
+ia64_sn_power_down(void)
+{
+ struct ia64_sal_retval ret_stuff;
+ SAL_CALL(ret_stuff, SN_SAL_SYSTEM_POWER_DOWN, 0, 0, 0, 0, 0, 0, 0);
+ while(1);
+ /* never returns */
+}
+
+/**
+ * ia64_sn_fru_capture - tell the system controller to capture hw state
+ *
+ * This routine will call the SAL which will tell the system controller(s)
+ * to capture hw mmr information from each SHub in the system.
+ */
+static inline u64
+ia64_sn_fru_capture(void)
+{
+ struct ia64_sal_retval isrv;
+ SAL_CALL(isrv, SN_SAL_SYSCTL_FRU_CAPTURE, 0, 0, 0, 0, 0, 0, 0);
+ if (isrv.status)
+ return 0;
+ return isrv.v0;
+}
+
+/*
+ * Performs an operation on a PCI bus or slot -- power up, power down
+ * or reset.
+ */
+static inline u64
+ia64_sn_sysctl_iobrick_pci_op(nasid_t n, u64 connection_type,
+ u64 bus, char slot,
+ u64 action)
+{
+ struct ia64_sal_retval rv = {0, 0, 0, 0};
+
+ SAL_CALL_NOLOCK(rv, SN_SAL_SYSCTL_IOBRICK_PCI_OP, connection_type, n, action,
+ bus, (u64) slot, 0, 0);
+ if (rv.status)
+ return rv.v0;
+ return 0;
+}
+
+
+/*
+ * Open a subchannel for sending arbitrary data to the system
+ * controller network via the system controller device associated with
+ * 'nasid'. Return the subchannel number or a negative error code.
+ */
+static inline int
+ia64_sn_irtr_open(nasid_t nasid)
+{
+ struct ia64_sal_retval rv;
+ SAL_CALL_REENTRANT(rv, SN_SAL_IROUTER_OP, SAL_IROUTER_OPEN, nasid,
+ 0, 0, 0, 0, 0);
+ return (int) rv.v0;
+}
+
+/*
+ * Close system controller subchannel 'subch' previously opened on 'nasid'.
+ */
+static inline int
+ia64_sn_irtr_close(nasid_t nasid, int subch)
+{
+ struct ia64_sal_retval rv;
+ SAL_CALL_REENTRANT(rv, SN_SAL_IROUTER_OP, SAL_IROUTER_CLOSE,
+ (u64) nasid, (u64) subch, 0, 0, 0, 0);
+ return (int) rv.status;
+}
+
+/*
+ * Read data from system controller associated with 'nasid' on
+ * subchannel 'subch'. The buffer to be filled is pointed to by
+ * 'buf', and its capacity is in the integer pointed to by 'len'. The
+ * referent of 'len' is set to the number of bytes read by the SAL
+ * call. The return value is either SALRET_OK (for bytes read) or
+ * SALRET_ERROR (for error or "no data available").
+ */
+static inline int
+ia64_sn_irtr_recv(nasid_t nasid, int subch, char *buf, int *len)
+{
+ struct ia64_sal_retval rv;
+ SAL_CALL_REENTRANT(rv, SN_SAL_IROUTER_OP, SAL_IROUTER_RECV,
+ (u64) nasid, (u64) subch, (u64) buf, (u64) len,
+ 0, 0);
+ return (int) rv.status;
+}
+
+/*
+ * Write data to the system controller network via the system
+ * controller associated with 'nasid' on suchannel 'subch'. The
+ * buffer to be written out is pointed to by 'buf', and 'len' is the
+ * number of bytes to be written. The return value is either the
+ * number of bytes written (which could be zero) or a negative error
+ * code.
+ */
+static inline int
+ia64_sn_irtr_send(nasid_t nasid, int subch, char *buf, int len)
+{
+ struct ia64_sal_retval rv;
+ SAL_CALL_REENTRANT(rv, SN_SAL_IROUTER_OP, SAL_IROUTER_SEND,
+ (u64) nasid, (u64) subch, (u64) buf, (u64) len,
+ 0, 0);
+ return (int) rv.v0;
+}
+
+/*
+ * Check whether any interrupts are pending for the system controller
+ * associated with 'nasid' and its subchannel 'subch'. The return
+ * value is a mask of pending interrupts (SAL_IROUTER_INTR_XMIT and/or
+ * SAL_IROUTER_INTR_RECV).
+ */
+static inline int
+ia64_sn_irtr_intr(nasid_t nasid, int subch)
+{
+ struct ia64_sal_retval rv;
+ SAL_CALL_REENTRANT(rv, SN_SAL_IROUTER_OP, SAL_IROUTER_INTR_STATUS,
+ (u64) nasid, (u64) subch, 0, 0, 0, 0);
+ return (int) rv.v0;
+}
+
+/*
+ * Enable the interrupt indicated by the intr parameter (either
+ * SAL_IROUTER_INTR_XMIT or SAL_IROUTER_INTR_RECV).
+ */
+static inline int
+ia64_sn_irtr_intr_enable(nasid_t nasid, int subch, u64 intr)
+{
+ struct ia64_sal_retval rv;
+ SAL_CALL_REENTRANT(rv, SN_SAL_IROUTER_OP, SAL_IROUTER_INTR_ON,
+ (u64) nasid, (u64) subch, intr, 0, 0, 0);
+ return (int) rv.v0;
+}
+
+/*
+ * Disable the interrupt indicated by the intr parameter (either
+ * SAL_IROUTER_INTR_XMIT or SAL_IROUTER_INTR_RECV).
+ */
+static inline int
+ia64_sn_irtr_intr_disable(nasid_t nasid, int subch, u64 intr)
+{
+ struct ia64_sal_retval rv;
+ SAL_CALL_REENTRANT(rv, SN_SAL_IROUTER_OP, SAL_IROUTER_INTR_OFF,
+ (u64) nasid, (u64) subch, intr, 0, 0, 0);
+ return (int) rv.v0;
+}
+
+/**
+ * ia64_sn_get_fit_compt - read a FIT entry from the PROM header
+ * @nasid: NASID of node to read
+ * @index: FIT entry index to be retrieved (0..n)
+ * @fitentry: 16 byte buffer where FIT entry will be stored.
+ * @banbuf: optional buffer for retrieving banner
+ * @banlen: length of banner buffer
+ *
+ * Access to the physical PROM chips needs to be serialized since reads and
+ * writes can't occur at the same time, so we need to call into the SAL when
+ * we want to look at the FIT entries on the chips.
+ *
+ * Returns:
+ * %SALRET_OK if ok
+ * %SALRET_INVALID_ARG if index too big
+ * %SALRET_NOT_IMPLEMENTED if running on older PROM
+ * ??? if nasid invalid OR banner buffer not large enough
+ */
+static inline int
+ia64_sn_get_fit_compt(u64 nasid, u64 index, void *fitentry, void *banbuf,
+ u64 banlen)
+{
+ struct ia64_sal_retval rv;
+ SAL_CALL_NOLOCK(rv, SN_SAL_GET_FIT_COMPT, nasid, index, fitentry,
+ banbuf, banlen, 0, 0);
+ return (int) rv.status;
+}
+
+/*
+ * Initialize the SAL components of the system controller
+ * communication driver; specifically pass in a sizable buffer that
+ * can be used for allocation of subchannel queues as new subchannels
+ * are opened. "buf" points to the buffer, and "len" specifies its
+ * length.
+ */
+static inline int
+ia64_sn_irtr_init(nasid_t nasid, void *buf, int len)
+{
+ struct ia64_sal_retval rv;
+ SAL_CALL_REENTRANT(rv, SN_SAL_IROUTER_OP, SAL_IROUTER_INIT,
+ (u64) nasid, (u64) buf, (u64) len, 0, 0, 0);
+ return (int) rv.status;
+}
+
+/*
+ * Returns the nasid, subnode & slice corresponding to a SAPIC ID
+ *
+ * In:
+ * arg0 - SN_SAL_GET_SAPIC_INFO
+ * arg1 - sapicid (lid >> 16)
+ * Out:
+ * v0 - nasid
+ * v1 - subnode
+ * v2 - slice
+ */
+static inline u64
+ia64_sn_get_sapic_info(int sapicid, int *nasid, int *subnode, int *slice)
+{
+ struct ia64_sal_retval ret_stuff;
+
+ ret_stuff.status = 0;
+ ret_stuff.v0 = 0;
+ ret_stuff.v1 = 0;
+ ret_stuff.v2 = 0;
+ SAL_CALL_NOLOCK(ret_stuff, SN_SAL_GET_SAPIC_INFO, sapicid, 0, 0, 0, 0, 0, 0);
+
+/***** BEGIN HACK - temp til old proms no longer supported ********/
+ if (ret_stuff.status == SALRET_NOT_IMPLEMENTED) {
+ if (nasid) *nasid = sapicid & 0xfff;
+ if (subnode) *subnode = (sapicid >> 13) & 1;
+ if (slice) *slice = (sapicid >> 12) & 3;
+ return 0;
+ }
+/***** END HACK *******/
+
+ if (ret_stuff.status < 0)
+ return ret_stuff.status;
+
+ if (nasid) *nasid = (int) ret_stuff.v0;
+ if (subnode) *subnode = (int) ret_stuff.v1;
+ if (slice) *slice = (int) ret_stuff.v2;
+ return 0;
+}
+
+/*
+ * Returns information about the HUB/SHUB.
+ * In:
+ * arg0 - SN_SAL_GET_SN_INFO
+ * arg1 - 0 (other values reserved for future use)
+ * Out:
+ * v0
+ * [7:0] - shub type (0=shub1, 1=shub2)
+ * [15:8] - Log2 max number of nodes in entire system (includes
+ * C-bricks, I-bricks, etc)
+ * [23:16] - Log2 of nodes per sharing domain
+ * [31:24] - partition ID
+ * [39:32] - coherency_id
+ * [47:40] - regionsize
+ * v1
+ * [15:0] - nasid mask (ex., 0x7ff for 11 bit nasid)
+ * [23:15] - bit position of low nasid bit
+ */
+static inline u64
+ia64_sn_get_sn_info(int fc, u8 *shubtype, u16 *nasid_bitmask, u8 *nasid_shift,
+ u8 *systemsize, u8 *sharing_domain_size, u8 *partid, u8 *coher, u8 *reg)
+{
+ struct ia64_sal_retval ret_stuff;
+
+ ret_stuff.status = 0;
+ ret_stuff.v0 = 0;
+ ret_stuff.v1 = 0;
+ ret_stuff.v2 = 0;
+ SAL_CALL_NOLOCK(ret_stuff, SN_SAL_GET_SN_INFO, fc, 0, 0, 0, 0, 0, 0);
+
+/***** BEGIN HACK - temp til old proms no longer supported ********/
+ if (ret_stuff.status == SALRET_NOT_IMPLEMENTED) {
+ int nasid = get_sapicid() & 0xfff;;
+#define SH_SHUB_ID_NODES_PER_BIT_MASK 0x001f000000000000UL
+#define SH_SHUB_ID_NODES_PER_BIT_SHFT 48
+ if (shubtype) *shubtype = 0;
+ if (nasid_bitmask) *nasid_bitmask = 0x7ff;
+ if (nasid_shift) *nasid_shift = 38;
+ if (systemsize) *systemsize = 11;
+ if (sharing_domain_size) *sharing_domain_size = 9;
+ if (partid) *partid = ia64_sn_sysctl_partition_get(nasid);
+ if (coher) *coher = nasid >> 9;
+ if (reg) *reg = (HUB_L((u64 *) LOCAL_MMR_ADDR(SH1_SHUB_ID)) & SH_SHUB_ID_NODES_PER_BIT_MASK) >>
+ SH_SHUB_ID_NODES_PER_BIT_SHFT;
+ return 0;
+ }
+/***** END HACK *******/
+
+ if (ret_stuff.status < 0)
+ return ret_stuff.status;
+
+ if (shubtype) *shubtype = ret_stuff.v0 & 0xff;
+ if (systemsize) *systemsize = (ret_stuff.v0 >> 8) & 0xff;
+ if (sharing_domain_size) *sharing_domain_size = (ret_stuff.v0 >> 16) & 0xff;
+ if (partid) *partid = (ret_stuff.v0 >> 24) & 0xff;
+ if (coher) *coher = (ret_stuff.v0 >> 32) & 0xff;
+ if (reg) *reg = (ret_stuff.v0 >> 40) & 0xff;
+ if (nasid_bitmask) *nasid_bitmask = (ret_stuff.v1 & 0xffff);
+ if (nasid_shift) *nasid_shift = (ret_stuff.v1 >> 16) & 0xff;
+ return 0;
+}
+
+/*
+ * This is the access point to the Altix PROM hardware performance
+ * and status monitoring interface. For info on using this, see
+ * include/asm-ia64/sn/sn2/sn_hwperf.h
+ */
+static inline int
+ia64_sn_hwperf_op(nasid_t nasid, u64 opcode, u64 a0, u64 a1, u64 a2,
+ u64 a3, u64 a4, int *v0)
+{
+ struct ia64_sal_retval rv;
+ SAL_CALL_NOLOCK(rv, SN_SAL_HWPERF_OP, (u64)nasid,
+ opcode, a0, a1, a2, a3, a4);
+ if (v0)
+ *v0 = (int) rv.v0;
+ return (int) rv.status;
+}
+
+#endif /* _ASM_IA64_SN_SN_SAL_H */