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/linux/arch/powerpc/kernel/
H A Drtas.c1 // SPDX-License-Identifier: GPL-2.0-or-later
4 * Procedures for interfacing to the RTAS on CHRP machines.
10 #define pr_fmt(fmt) "rtas: " fmt
42 #include <asm/rtas-work-area.h>
43 #include <asm/rtas.h>
49 /* Indexes into the args buffer, -1 if not used */
62 * struct rtas_function - Descriptor for RTAS functions.
64 * @token: Value of @name if it exists under the /rtas node.
66 * @filter: If non-NULL, invoking this function via the rtas syscall is
75 * @lock: Pointer to an optional dedicated per-function mutex. This
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H A Dcrash_dump.c1 // SPDX-License-Identifier: GPL-2.0-only
3 * Routines for doing kexec-based kdump.
7 * Created by: Michael Ellerman
16 #include <asm/code-patching.h>
20 #include <asm/rtas.h>
42 * instruction's address + (32 MB - 4) bytes. For the trampoline we in create_trampoline()
45 * does a branch to (32 MB - 4). The net effect is that when we in create_trampoline()
57 DBG(" -> setup_kdump_trampoline()\n"); in setup_kdump_trampoline()
64 create_trampoline(__pa(system_reset_fwnmi) - PHYSICAL_START); in setup_kdump_trampoline()
65 create_trampoline(__pa(machine_check_fwnmi) - PHYSICAL_START); in setup_kdump_trampoline()
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H A Dudbg.c1 // SPDX-License-Identifier: GPL-2.0-or-later
37 /* RTAS panel debug */ in udbg_early_init()
40 /* RTAS console debug */ in udbg_early_init()
78 /* udbg library, used by xmon et al */
108 while (((c = *s++) != '\0') && (remain-- > 0)) { in udbg_write()
116 return n - remain; in udbg_write()
156 * Called by setup_system after ppc_md->probe and ppc_md->early_init.
157 * Call it again after setting udbg_putc in ppc_md->setup_arch.
167 if (strstr(boot_command_line, "udbg-immortal")) { in register_early_udbg_console()
H A Dprom_init.c1 // 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.
34 #include <asm/rtas.h>
46 #include <asm/asm-prototypes.h>
47 #include <asm/ultravisor-api.h>
72 * On ppc32 we compile with -mrelocatable, which means that references
82 * ADDR is used in calls to call_prom. The 4th and following
83 * arguments to call_prom should be 32-bit values.
185 /* Platforms codes are now obsolete in the kernel. Now only used within this
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/linux/arch/powerpc/platforms/pseries/
H A Dsmp.c1 // SPDX-License-Identifier: GPL-2.0-or-later
35 #include <asm/rtas.h>
42 #include <asm/code-patching.h>
49 * The Primary thread of each non-boot processor was started from the OF client
50 * interface by prom_hold_cpus and is spinning on secondary_hold_spinloop.
62 "Firmware doesn't support query-cpu-stopped-state\n"); in smp_query_cpu_stopped()
69 "RTAS query-cpu-stopped-state failed: %i\n", status); in smp_query_cpu_stopped()
77 * smp_startup_cpu() - start the given cpu
80 * started from Open Firmware. For anything else, call RTAS with the
84 * 0 - failure
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H A Deeh_pseries.c1 // 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 */
55 dev_dbg(&pdev->dev, "EEH: Setting up device\n"); in pseries_pcibios_bus_add_device()
57 if (pdev->is_virtfn) { in pseries_pcibios_bus_add_device()
58 pdn->device_id = pdev->device; in pseries_pcibios_bus_add_device()
59 pdn->vendor_id = pdev->vendor; in pseries_pcibios_bus_add_device()
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H A Dio_event_irq.c1 // 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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H A Dmsi.c1 // SPDX-License-Identifier: GPL-2.0-only
4 * Copyright 2006-2007 Michael Ellerman, IBM Corp.
13 #include <asm/rtas.h>
15 #include <asm/ppc-pci.h>
31 /* RTAS Helpers */
39 addr = rtas_config_addr(pdn->busno, pdn->devfn, 0); in rtas_change_msi()
40 buid = pdn->phb->buid; in rtas_change_msi()
58 * If the RTAS call succeeded, return the number of irqs allocated. in rtas_change_msi()
64 rc = -rc; in rtas_change_msi()
81 * disabling MSI with the explicit interface also disables MSI-X in rtas_disable_msi()
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H A DKconfig1 # SPDX-License-Identifier: GPL-2.0
4 bool "IBM pSeries & new (POWER5-based) iSeries"
39 bool "Support for shared-processor logical partitions"
46 on logically-partitioned pSeries systems which use shared
78 interrupts. IO event interrupt is a mechanism provided by RTAS
79 to return information about hardware error and non-error events
80 which may need OS attention. RTAS returns events for multiple
109 bool "Support for shared-memory logical partitions"
126 by allocating pages of memory and put them "on hold". This only
161 # used to store asymmetric public keys or secrets as required
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H A Drtas-fadump.c1 // SPDX-License-Identifier: GPL-2.0-or-later
3 * Firmware-Assisted Dump support on POWERVM platform.
9 #define pr_fmt(fmt) "rtas fadump: " fmt
20 #include <asm/rtas.h>
23 #include <asm/fadump-internal.h>
25 #include "rtas-fadump.h"
33 fadump_conf->fadumphdr_addr = (fadump_conf->boot_mem_dest_addr + in rtas_fadump_update_config()
34 fadump_conf->boot_memory_size); in rtas_fadump_update_config()
48 fadump_conf->boot_memory_size = 0; in rtas_fadump_get_config()
49 fadump_conf->boot_mem_regs_cnt = 0; in rtas_fadump_get_config()
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H A Drtas-fadump.h1 /* SPDX-License-Identifier: GPL-2.0-or-later */
3 * Firmware-Assisted Dump support on POWERVM platform.
37 * in the dump memory structure. Presently, three sections are used for
39 * can be used for boot memory regions.
55 /* ibm,configure-kernel-dump header. */
68 /* Maximum time allowed to prevent an automatic dump-reboot. */
74 * registering future kernel dump with power firmware through rtas call.
76 * In version 1, the platform permits one section header, dump-disk path
88 * The firmware-assisted dump format.
90 * The register save area is an area in the partition's memory used to preserve
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H A Dsetup.c1 // 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
49 #include <asm/rtas.h>
50 #include <asm/pci-bridge.h>
60 #include <asm/papr-sysparm.h>
61 #include <asm/ppc-pci.h>
70 #include <asm/isa-bridge.h>
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H A Dlparcfg.c1 // SPDX-License-Identifier: GPL-2.0-or-later
14 * keyword - value pairs that specify the configuration of the partition.
22 #include <asm/papr-sysparm.h>
30 #include <asm/rtas.h>
51 * Track sum of all purrs across all processors. This is used to further
52 * calculate usage values by different applications
71 * Methods used to fetch LPAR data when running on a pSeries platform.
97 * XXXX - reserved (0)
98 * XXXX - reserved (0)
99 * XXXX - Group Number
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/linux/arch/powerpc/
H A DKconfig.debug1 # 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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/linux/drivers/tty/hvc/
H A DKconfig1 # 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
110 bool "RISC-V SBI console support"
114 This enables support for console output via RISC-V SBI calls, which
115 is normally used only during boot to output printk. This driver
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/linux/arch/powerpc/mm/
H A Dnuma.c1 // SPDX-License-Identifier: GPL-2.0-or-later
63 [0 ... MAX_NUMNODES - 1] = { [0 ... MAX_NUMNODES - 1] = -1 }
65 static int numa_id_index_table[MAX_NUMNODES] = { [0 ... MAX_NUMNODES - 1] = NUMA_NO_NODE };
141 numa_cpu_lookup_table[cpu] = -1; in reset_numa_cpu_lookup_table()
175 int index = primary_domain_index - 1; in __associativity_to_nid()
188 * Returns nid in the range [0..nr_node_ids], or -1 if no useful NUMA
270 * or -1 if not found.
291 if (nid != -1) in of_node_to_nid()
314 int index = be32_to_cpu(distance_ref_points[i]) - 1; in __initialize_form1_numa_distance()
338 * Used to update distance information w.r.t newly added node.
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/linux/drivers/gpu/drm/imagination/
H A Dpvr_rogue_fwif_client.h1 /* SPDX-License-Identifier: GPL-2.0-only OR MIT */
15 * Page size used for Parameter Management.
27 * Minimum PB = Base Pages + (NUM_TE_PIPES-1)*16K + (NUM_VCE_PIPES-1)*64K +
30 * Maximum PB size must ensure that no PM address space can be fully used,
31 * because if the full address space was used it would wrap and corrupt itself.
40 * of 4GB minus the Minimum PB. For convenience we take the smaller power-of-2
46 * Flags supported by the geometry DM command i.e. &struct rogue_fwif_cmd_geom.
55 * Flags supported by the fragment DM command i.e. &struct rogue_fwif_cmd_frag.
74 * Flags supported by the compute DM command i.e. &struct rogue_fwif_cmd_compute.
82 * Flags supported by the transfer DM command i.e. &struct rogue_fwif_cmd_transfer.
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/linux/arch/powerpc/platforms/
H A DKconfig1 # SPDX-License-Identifier: GPL-2.0
36 bool "ePAPR para-virtualization support"
38 Enables ePAPR para-virtualization support for guests.
47 a hypervisor. This option is not user-selectable but should
48 be selected by all platforms that need it.
64 bool "Device-tree based CPU feature discovery & setup"
75 bool "RTAS based debug console"
107 The driver provides a way to wake up the system by MPIC
123 registers are used for inter-processor communication.
144 bool "Proc interface to RTAS"
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/linux/arch/powerpc/include/asm/
H A Dpaca.h1 /* 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>
49 #define get_slb_shadow() (get_paca()->slb_shadow_ptr)
58 * This structure is not directly accessed by firmware or the service
66 * read-only (after boot) fields in the first cacheline to
80 u16 lock_token; /* Constant 0x8000, used in locks */
84 u16 lock_token; /* Constant 0x8000, used in locks */
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/linux/Documentation/devicetree/bindings/serial/
H A D8250.yaml3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - devicetree@vger.kernel.org
13 - $ref: serial.yaml#
14 - $ref: /schemas/memory-controllers/mc-peripheral-props.yaml#
15 - if:
17 - required:
18 - aspeed,lpc-io-reg
19 - required:
20 - aspeed,lpc-interrupts
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/linux/drivers/cpuidle/
H A Dcpuidle-pseries.c1 // SPDX-License-Identifier: GPL-2.0
3 * cpuidle-pseries - idle state cpuidle driver.
24 #include <asm/rtas.h>
47 dev->poll_time_limit = false; in snooze_loop()
58 dev->poll_time_limit = true; in snooze_loop()
80 * were soft-disabled in check_and_cede_processor()
94 * "ibm,get-systems-parameter" RTAS call with the token
100 * table with all the parameters to ibm,get-system-parameters.
117 * -----------------------------
120 * -----------------------------
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/linux/arch/powerpc/platforms/chrp/
H A Dsetup.c1 // SPDX-License-Identifier: GPL-2.0
4 * Adapted from 'alpha' version by Gary Thomas
5 * Modified by Cort Dougan (cort@cs.nmt.edu)
40 #include <asm/pci-bridge.h>
49 #include <asm/rtas.h>
62 /* Used for doing CHRP event-scans */
68 /* To be replaced by RTAS when available */
82 "Asynchronous", "Reserved", "Flow-Through Synchronous",
86 "Disabled", "Write-Through", "Copy-Back", "Transparent Mode"
253 * Per default, input/output-device points to the keyboard/screen
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/linux/drivers/pci/hotplug/
H A Drpaphp_slot.c1 // SPDX-License-Identifier: GPL-2.0+
19 #include <asm/rtas.h>
22 /* free up the memory used by a slot */
25 of_node_put(slot->dn); in dealloc_slot_struct()
26 kfree(slot->name); in dealloc_slot_struct()
38 slot->name = kstrdup(drc_name, GFP_KERNEL); in alloc_slot_struct()
39 if (!slot->name) in alloc_slot_struct()
41 slot->dn = of_node_get(dn); in alloc_slot_struct()
42 slot->index = drc_index; in alloc_slot_struct()
43 slot->power_domain = power_domain; in alloc_slot_struct()
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/linux/arch/powerpc/sysdev/xics/
H A Dxics-common.c1 // 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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/linux/arch/powerpc/kexec/
H A Dcore_64.c1 // SPDX-License-Identifier: GPL-2.0-only
5 * Copyright (C) 2004-2005, IBM Corp.
7 * Created by: Milton D Miller II
35 #include <asm/crashdump-ppc64.h>
51 for (i = 0; i < image->nr_segments; i++) in machine_kexec_prepare()
52 if (image->segment[i].mem < __pa(_end)) in machine_kexec_prepare()
53 return -ETXTBSY; in machine_kexec_prepare()
57 basep = of_get_property(node, "linux,tce-base", NULL); in machine_kexec_prepare()
58 sizep = of_get_property(node, "linux,tce-size", NULL); in machine_kexec_prepare()
65 for (i = 0; i < image->nr_segments; i++) { in machine_kexec_prepare()
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