| /Linux-v5.15/arch/powerpc/kernel/ |
| D | rtas.c | 1 // SPDX-License-Identifier: GPL-2.0-or-later
4 * Procedures for interfacing to the RTAS on CHRP machines.
30 #include <asm/rtas.h>
47 /* This is here deliberately so it's only used in this file */
54 srr_regs_clobbered(); /* rtas uses SRRs, invalidate */ in do_enter_rtas()
57 struct rtas_t rtas = { variable
60 EXPORT_SYMBOL(rtas);
71 * If non-NULL, this gets called when the kernel terminates.
77 /* RTAS use home made raw locking instead of spin_lock_irqsave
88 arch_spin_lock(&rtas.lock); in lock_rtas()
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| D | udbg.c | 1 // SPDX-License-Identifier: GPL-2.0-or-later
37 /* RTAS panel debug */ in udbg_early_init()
40 /* RTAS console debug */ in udbg_early_init()
79 /* udbg library, used by xmon et al */
109 while (((c = *s++) != '\0') && (remain-- > 0)) { in udbg_write()
117 return n - remain; in udbg_write()
157 * Called by setup_system after ppc_md->probe and ppc_md->early_init.
158 * Call it again after setting udbg_putc in ppc_md->setup_arch.
168 if (strstr(boot_command_line, "udbg-immortal")) { in register_early_udbg_console()
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| D | prom_init.c | 1 // SPDX-License-Identifier: GPL-2.0-or-later
6 * Copyright (C) 1996-2005 Paul Mackerras.
8 * Adapted for 64bit PowerPC by Dave Engebretsen and Peter Bergner.
32 #include <asm/rtas.h>
44 #include <asm/asm-prototypes.h>
45 #include <asm/ultravisor-api.h>
70 * On ppc32 we compile with -mrelocatable, which means that references
80 * ADDR is used in calls to call_prom. The 4th and following
81 * arguments to call_prom should be 32-bit values.
189 /* Platforms codes are now obsolete in the kernel. Now only used within this
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| D | setup-common.c | 1 // SPDX-License-Identifier: GPL-2.0-or-later
3 * Common boot and setup code for both 32-bit and 64-bit.
51 #include <asm/rtas.h>
77 /* The main machine-dep calls structure
84 int boot_cpuid = -1;
88 * These are used in binfmt_elf.c to put aux entries on the stack
95 * This still seems to be needed... -- paulus
123 int crashing_cpu = -1;
126 /* also used by kexec */
170 /* Used by the G5 thermal driver */
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| /Linux-v5.15/arch/powerpc/include/asm/ |
| D | rtas.h | 1 /* SPDX-License-Identifier: GPL-2.0-or-later */
8 #include <asm/rtas-types.h>
13 * Definitions for talking to the RTAS on CHRP machines.
19 #define RTAS_UNKNOWN_SERVICE (-1)
20 #define RTAS_INSTANTIATE_MAX (1ULL<<30) /* Don't instantiate rtas at/above this value */
25 /* RTAS return status codes */
26 #define RTAS_BUSY -2 /* RTAS Busy */
30 /* statuses specific to ibm,suspend-me */
32 #define RTAS_NOT_SUSPENDABLE -9004 /* Partition not suspendable */
33 #define RTAS_THREADS_ACTIVE -9005 /* Multiple processor threads active */
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| D | paca.h | 1 /* SPDX-License-Identifier: GPL-2.0-or-later */
5 * There are some pointers defined that are utilized by PLIC.
21 #include <asm/exception-64e.h>
23 #include <asm/exception-64s.h>
34 #include <asm-generic/mmiowb_types.h>
50 #define get_lppaca() (get_paca()->lppaca_ptr)
53 #define get_slb_shadow() (get_paca()->slb_shadow_ptr)
61 * This structure is not directly accessed by firmware or the service
69 * read-only (after boot) fields in the first cacheline to
83 u16 lock_token; /* Constant 0x8000, used in locks */
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| /Linux-v5.15/drivers/watchdog/ |
| D | wdrtas.c | 1 // SPDX-License-Identifier: GPL-2.0-or-later
4 * RTAS calls are available
8 * RTAS watchdog driver
11 * device driver to exploit watchdog RTAS functions
29 #include <asm/rtas.h>
36 MODULE_DESCRIPTION("RTAS watchdog driver");
62 * wdrtas_set_interval - sets the watchdog interval
67 * wdrtas_set_interval sets the watchdog keepalive interval by calling the
68 * RTAS function set-indicator (surveillance). The unit of interval is
77 /* rtas uses minutes */ in wdrtas_set_interval()
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| /Linux-v5.15/arch/powerpc/platforms/pseries/ |
| D | smp.c | 1 // SPDX-License-Identifier: GPL-2.0-or-later
36 #include <asm/rtas.h>
43 #include <asm/code-patching.h>
50 * The Primary thread of each non-boot processor was started from the OF client
51 * interface by prom_hold_cpus and is spinning on secondary_hold_spinloop.
59 int qcss_tok = rtas_token("query-cpu-stopped-state"); in smp_query_cpu_stopped()
63 "Firmware doesn't support query-cpu-stopped-state\n"); in smp_query_cpu_stopped()
70 "RTAS query-cpu-stopped-state failed: %i\n", status); in smp_query_cpu_stopped()
78 * smp_startup_cpu() - start the given cpu
81 * started from Open Firmware. For anything else, call RTAS with the
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| D | io_event_irq.c | 1 // SPDX-License-Identifier: GPL-2.0-or-later
3 * Copyright 2010 2011 Mark Nelson and Tseng-Hui (Frank) Lin, IBM Corporation
16 #include <asm/rtas.h>
23 * IO event interrupt is a mechanism provided by RTAS to return
24 * information about hardware error and non-error events. Device
30 * by one until the IO event is claimed by one of the handlers.
32 * event is handled by the event handler or NOTIFY_DONE if the
41 * if (! is_my_event(p->scope, p->event_type)) return NOTIFY_DONE;
66 * @elog: RTAS error/event log.
75 /* We should only ever get called for io-event interrupts, but if in ioei_find_event()
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| D | eeh_pseries.c | 1 // SPDX-License-Identifier: GPL-2.0-or-later
4 * Actually, the pseries platform is built based on RTAS heavily. That means the
5 * pseries platform dependent EEH operations will be built on RTAS calls. The functions
33 #include <asm/ppc-pci.h>
34 #include <asm/rtas.h>
36 /* RTAS tokens */
53 dev_dbg(&pdev->dev, "EEH: Setting up device\n"); in pseries_pcibios_bus_add_device()
55 if (pdev->is_virtfn) { in pseries_pcibios_bus_add_device()
56 pdn->device_id = pdev->device; in pseries_pcibios_bus_add_device()
57 pdn->vendor_id = pdev->vendor; in pseries_pcibios_bus_add_device()
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| D | msi.c | 1 // SPDX-License-Identifier: GPL-2.0-only
4 * Copyright 2006-2007 Michael Ellerman, IBM Corp.
12 #include <asm/rtas.h>
14 #include <asm/ppc-pci.h>
29 /* RTAS Helpers */
37 addr = rtas_config_addr(pdn->busno, pdn->devfn, 0); in rtas_change_msi()
38 buid = pdn->phb->buid; in rtas_change_msi()
56 * If the RTAS call succeeded, return the number of irqs allocated. in rtas_change_msi()
62 rc = -rc; in rtas_change_msi()
79 * disabling MSI with the explicit interface also disables MSI-X in rtas_disable_msi()
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| D | rtas-fadump.c | 1 // SPDX-License-Identifier: GPL-2.0-or-later
3 * Firmware-Assisted Dump support on POWERVM platform.
9 #define pr_fmt(fmt) "rtas fadump: " fmt
19 #include <asm/rtas.h>
21 #include <asm/fadump-internal.h>
23 #include "rtas-fadump.h"
31 fadump_conf->boot_mem_dest_addr = in rtas_fadump_update_config()
32 be64_to_cpu(fdm->rmr_region.destination_address); in rtas_fadump_update_config()
34 fadump_conf->fadumphdr_addr = (fadump_conf->boot_mem_dest_addr + in rtas_fadump_update_config()
35 fadump_conf->boot_memory_size); in rtas_fadump_update_config()
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| D | setup.c | 1 // SPDX-License-Identifier: GPL-2.0-or-later
3 * 64-bit pSeries and RS/6000 setup code.
6 * Adapted from 'alpha' version by Gary Thomas
7 * Modified by Cort Dougan (cort@cs.nmt.edu)
8 * Modified by PPC64 Team, IBM Corp
47 #include <asm/rtas.h>
48 #include <asm/pci-bridge.h>
58 #include <asm/ppc-pci.h>
67 #include <asm/isa-bridge.h>
69 #include <asm/asm-const.h>
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| D | rtas-fadump.h | 1 /* SPDX-License-Identifier: GPL-2.0-or-later */
3 * Firmware-Assisted Dump support on POWERVM platform.
43 /* ibm,configure-kernel-dump header. */
56 /* Maximum time allowed to prevent an automatic dump-reboot. */
62 * registering future kernel dump with power firmware through rtas call.
81 * The firmware-assisted dump format.
83 * The register save area is an area in the partition's memory used to preserve
86 * by register entries. Each list of registers for a CPU starts with "CPUSTRT"
106 while (be64_to_cpu(reg_entry->reg_id) != \
112 #define RTAS_FADUMP_CPU_ID_MASK ((1UL << 32) - 1)
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| /Linux-v5.15/drivers/tty/hvc/ |
| D | Kconfig | 1 # SPDX-License-Identifier: GPL-2.0
8 It will automatically be selected if one of the back-end console drivers
38 bool "IBM RTAS Console support"
42 IBM Console device driver which makes use of RTAS
51 This driver provides a Hypervisor console (HVC) back-end to access
76 This is meant to be used during HW bring up or debugging when
87 driver. This console is used through a JTAG only on ARM. If you don't have
91 bool "RISC-V SBI console support"
95 This enables support for console output via RISC-V SBI calls, which
96 is normally used only during boot to output printk.
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| /Linux-v5.15/arch/powerpc/ |
| D | Kconfig.debug | 1 # SPDX-License-Identifier: GPL-2.0
4 bool "Don't build arch/powerpc code with -Werror"
7 arch/powerpc with the -Werror flag (which means warnings
11 arch/powerpc code caused by a warning, and you don't feel
47 emulated by the in-kernel emulator. Counters for the various classes
50 system. Optionally (controlled by
51 powerpc/emulated_instructions/do_warn in debugfs), rate-limited
56 bool "Run self-tests of the code-patching code"
78 bool "Run self-tests of the feature-fixup code"
82 bool "Run self-tests of the MSI bitmap code"
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| D | Kconfig | 1 # SPDX-License-Identifier: GPL-2.0
17 # On Book3S 64, the default virtual address space for 64-bit processes
20 # between bottom-up and top-down allocations for applications that
23 default 29 if PPC_BOOK3S_64 && PPC_64K_PAGES # 29 = 45 (32T) - 16 (64K)
24 default 33 if PPC_BOOK3S_64 # 33 = 45 (32T) - 12 (4K)
26 # On all other 64-bit platforms (currently only Book3E), the virtual
29 default 32 if 64BIT # 32 = 44 (16T) - 12 (4K)
31 # For 32-bit, use the compat values, as they're the same.
36 default 14 if 64BIT && PPC_64K_PAGES # 14 = 30 (1GB) - 16 (64K)
37 default 18 if 64BIT # 18 = 30 (1GB) - 12 (4K)
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| /Linux-v5.15/arch/powerpc/platforms/ |
| D | Kconfig | 1 # SPDX-License-Identifier: GPL-2.0
37 bool "ePAPR para-virtualization support"
39 Enables ePAPR para-virtualization support for guests.
48 a hypervisor. This option is not user-selectable but should
49 be selected by all platforms that need it.
65 bool "Device-tree based CPU feature discovery & setup"
76 bool "RTAS based debug console"
108 The driver provides a way to wake up the system by MPIC
124 registers are used for inter-processor communication.
145 bool "Proc interface to RTAS"
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| /Linux-v5.15/arch/powerpc/mm/ |
| D | numa.c | 1 // SPDX-License-Identifier: GPL-2.0-or-later
64 [0 ... MAX_NUMNODES - 1] = { [0 ... MAX_NUMNODES - 1] = -1 }
66 static int numa_id_index_table[MAX_NUMNODES] = { [0 ... MAX_NUMNODES - 1] = NUMA_NO_NODE };
142 numa_cpu_lookup_table[cpu] = -1; in reset_numa_cpu_lookup_table()
176 int index = primary_domain_index - 1; in __associativity_to_nid()
189 * Returns nid in the range [0..nr_node_ids], or -1 if no useful NUMA
271 * or -1 if not found.
292 if (nid != -1) in of_node_to_nid()
315 int index = be32_to_cpu(distance_ref_points[i]) - 1; in __initialize_form1_numa_distance()
339 * Used to update distance information w.r.t newly added node.
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| /Linux-v5.15/Documentation/devicetree/bindings/serial/ |
| D | 8250.yaml | 3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - devicetree@vger.kernel.org
13 - $ref: serial.yaml#
14 - if:
16 - required:
17 - aspeed,lpc-io-reg
18 - required:
19 - aspeed,lpc-interrupts
20 - required:
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| /Linux-v5.15/drivers/cpuidle/ |
| D | cpuidle-pseries.c | 1 // SPDX-License-Identifier: GPL-2.0
3 * cpuidle-pseries - idle state cpuidle driver.
24 #include <asm/rtas.h>
78 * were soft-disabled in check_and_cede_processor()
92 * "ibm,get-systems-parameter" RTAS call with the token
98 * table with all the parameters to ibm,get-system-parameters.
115 * -----------------------------
118 * -----------------------------
121 * -----------------------------
124 * | tb-ticks | |
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| /Linux-v5.15/arch/powerpc/platforms/chrp/ |
| D | setup.c | 1 // SPDX-License-Identifier: GPL-2.0
4 * Adapted from 'alpha' version by Gary Thomas
5 * Modified by Cort Dougan (cort@cs.nmt.edu)
38 #include <asm/pci-bridge.h>
47 #include <asm/rtas.h>
60 /* Used for doing CHRP event-scans */
66 /* To be replaced by RTAS when available */
80 "Asynchronous", "Reserved", "Flow-Through Synchronous",
84 "Disabled", "Write-Through", "Copy-Back", "Transparent Mode"
251 * Per default, input/output-device points to the keyboard/screen
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| /Linux-v5.15/arch/powerpc/kexec/ |
| D | core_64.c | 1 // SPDX-License-Identifier: GPL-2.0-only
5 * Copyright (C) 2004-2005, IBM Corp.
7 * Created by: Milton D Miller II
31 #include <asm/asm-prototypes.h>
49 for (i = 0; i < image->nr_segments; i++) in default_machine_kexec_prepare()
50 if (image->segment[i].mem < __pa(_end)) in default_machine_kexec_prepare()
51 return -ETXTBSY; in default_machine_kexec_prepare()
55 basep = of_get_property(node, "linux,tce-base", NULL); in default_machine_kexec_prepare()
56 sizep = of_get_property(node, "linux,tce-size", NULL); in default_machine_kexec_prepare()
63 for (i = 0; i < image->nr_segments; i++) { in default_machine_kexec_prepare()
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| /Linux-v5.15/drivers/pci/hotplug/ |
| D | rpaphp_slot.c | 1 // SPDX-License-Identifier: GPL-2.0+
18 #include <asm/rtas.h>
21 /* free up the memory used by a slot */
24 of_node_put(slot->dn); in dealloc_slot_struct()
25 kfree(slot->name); in dealloc_slot_struct()
37 slot->name = kstrdup(drc_name, GFP_KERNEL); in alloc_slot_struct()
38 if (!slot->name) in alloc_slot_struct()
40 slot->dn = of_node_get(dn); in alloc_slot_struct()
41 slot->index = drc_index; in alloc_slot_struct()
42 slot->power_domain = power_domain; in alloc_slot_struct()
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| /Linux-v5.15/arch/powerpc/sysdev/xics/ |
| D | xics-common.c | 1 // SPDX-License-Identifier: GPL-2.0-or-later
26 #include <asm/rtas.h>
60 ireg = of_get_property(np, "ibm,ppc-interrupt-gserver#s", &ilen); in xics_update_irq_servers()
69 * entry of "ibm,ppc-interrupt-gserver#s" property. Get the last in xics_update_irq_servers()
84 /* GIQ stuff, currently only supported on RTAS setups, will have
96 index = (1UL << xics_interrupt_server_size) - 1 - gserver; in xics_set_cpu_giq()
100 WARN(status < 0, "set-indicator(%d, %d, %u) returned %d\n", in xics_set_cpu_giq()
107 icp_ops->set_priority(LOWEST_PRIORITY); in xics_setup_cpu()
118 xics_ics->mask_unknown(xics_ics, vec); in xics_mask_unknown_vec()
134 BUG_ON(request_irq(ipi, icp_ops->ipi_action, in xics_request_ipi()
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