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/linux-6.14.4/arch/powerpc/kernel/
Drtas_entry.S9 * RTAS is called with MSR IR, DR, EE disabled, and LR in the return address.
11 * Note: r3 is an input parameter to rtas, so don't trash it...
19 LOAD_REG_ADDR(r4, rtas)
20 lis r6,1f@ha /* physical return address for rtas */
55 * 32-bit rtas on 64-bit machines has the additional problem that RTAS may
63 /* Because RTAS is running in 32b mode, it clobbers the high order half
65 * RTAS might touch to the stack. (r0, r3-r12 are caller saved)
81 /* Temporary workaround to clear CR until RTAS can be modified to
91 * our original state after RTAS returns.
102 LOAD_REG_ADDR(r4, rtas)
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Drtas.c4 * 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>
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
92 * Per-function locks for sequence-based RTAS functions.
382 * "ibm,reset-pe-dma-windows" (plural), but RTAS
487 .name = "rtas-last-error",
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Drtasd.c25 #include <asm/rtas.h>
45 /* RTAS service tokens */
58 * Since we use 32 bit RTAS, the physical address of this must be below
97 /* To see this info, grep RTAS /var/log/messages and each entry
102 * format of error logs returned from RTAS:
116 char * str = "RTAS event"; in printk_log_rtas()
124 * with RTAS and a changing number, so syslogd will in printk_log_rtas()
132 n = sprintf(buffer, "RTAS %d:", i/perline); in printk_log_rtas()
165 /* rtas fixed header */ in log_rtas_len()
188 * method for the type of error. Currently, only RTAS
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Dcrash_dump.c20 #include <asm/rtas.h>
109 * The crashkernel region will almost always overlap the RTAS region, so
118 basep = of_get_property(rtas.dev, "linux,rtas-base", NULL); in crash_free_reserved_phys_range()
119 sizep = of_get_property(rtas.dev, "rtas-size", NULL); in crash_free_reserved_phys_range()
127 /* Does this page overlap with the RTAS region? */ in crash_free_reserved_phys_range()
Dproc_powerpc.c15 #include <asm/rtas.h>
89 * Create the ppc64 and ppc64/rtas directories early. This allows us to
105 if (!of_find_node_by_path("/rtas")) in proc_ppc64_create()
108 if (!proc_mkdir("rtas", root)) in proc_ppc64_create()
111 if (!proc_symlink("rtas", NULL, "powerpc/rtas")) in proc_ppc64_create()
Drtas_flash.c5 * /proc/powerpc/rtas/firmware_flash interface
9 * firmware image and flash it as it reboots (see rtas.c).
19 #include <asm/rtas.h>
29 /* General RTAS Status Codes */
35 #define FLASH_AUTH -9002 /* RTAS Not Service Authority Partition */
43 #define MANAGE_AUTH -9002 /* RTAS Not Service Authority Partition */
44 #define MANAGE_ACTIVE_ERR -9001 /* RTAS Cannot Overwrite Active Img */
46 #define MANAGE_PARAM_ERR -3 /* RTAS Parameter Error */
47 #define MANAGE_HW_ERR -1 /* RTAS Hardware Error */
50 #define VALIDATE_AUTH -9002 /* RTAS Not Service Authority Partition */
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Drtas-proc.c6 * RTAS (Runtime Abstraction Services) stuff
8 * to use the RTAS.
12 * location. Write Documentation on what the /proc/rtas/ entries
32 #include <asm/rtas.h>
236 rtas_node = of_find_node_by_name(NULL, "rtas"); in proc_rtas_init()
240 proc_create("powerpc/rtas/progress", 0644, NULL, in proc_rtas_init()
242 proc_create("powerpc/rtas/clock", 0644, NULL, in proc_rtas_init()
244 proc_create("powerpc/rtas/poweron", 0644, NULL, in proc_rtas_init()
246 proc_create_single("powerpc/rtas/sensors", 0444, NULL, in proc_rtas_init()
248 proc_create("powerpc/rtas/frequency", 0644, NULL, in proc_rtas_init()
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/linux-6.14.4/arch/powerpc/include/asm/
Drtas.h9 #include <asm/rtas-types.h>
14 * Definitions for talking to the RTAS on CHRP machines.
106 * Opaque handle for client code to refer to RTAS functions. All valid
200 #define RTAS_INSTANTIATE_MAX (1ULL<<30) /* Don't instantiate rtas at/above this value */
206 * Common RTAS function return values, derived from the table "RTAS
212 * RTAS functions may use negative and positive numbers not in this
231 /* RTAS event classes */
238 /* RTAS event severity */
246 /* RTAS event disposition */
251 /* RTAS event initiator */
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Drtas-work-area.h12 * struct rtas_work_area - RTAS work area descriptor.
15 * RTAS addressing requirements.
33 * Allocate a buffer suitable for passing to RTAS functions that have
Drtas-types.h49 /* RTAS general extended event log, Version 6. The extended log starts
61 * X 1: "New" log (always 1 for data returned from RTAS)
100 /* RTAS pseries hotplug errorlog section */
/linux-6.14.4/drivers/watchdog/
Dwdrtas.c4 * 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");
68 * RTAS function set-indicator (surveillance). The unit of interval is
77 /* rtas uses minutes */ in wdrtas_set_interval()
95 * @fallback_value: value (in seconds) to use, if the RTAS call fails
100 * as reported by the RTAS function ibm,get-system-parameter. The unit
123 /* rtas uses minutes */ in wdrtas_get_interval()
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/linux-6.14.4/drivers/pci/hotplug/
Drpaphp_pci.c16 #include <asm/rtas.h>
23 * RTAS call get-sensor-state(DR_ENTITY_SENSE) return values as per PAPR:
27 * -3: Invalid sensor. RTAS Parameter Error.
29 * -9000: Need DR entity to be powered up and unisolated before RTAS call
30 * -9001: Need DR entity to be powered up, but not unisolated, before RTAS call
59 * On certain PHB failures, the RTAS call rtas_call(get-sensor-state) returns
60 * extended busy error (9902) until PHB is recovered by pHyp. The RTAS call
61 * interface rtas_get_sensor() loops over the RTAS call on extended delay
67 * recovery state and return -EBUSY error based on RTAS return status. This
/linux-6.14.4/arch/powerpc/platforms/pseries/
Drtas-work-area.c3 #define pr_fmt(fmt) "rtas-work-area: " fmt
17 #include <asm/rtas-work-area.h>
18 #include <asm/rtas.h>
34 * PAPR+ 7.3.20 ibm,get-vpd RTAS Call
128 * reliably reserve an arena that satisfies RTAS addressing
130 * immmediately after RTAS instantiation. Then we have to wait until
151 * All RTAS functions that consume work areas are OK with in rtas_work_area_allocator_init()
186 * rtas_work_area_reserve_arena() - Reserve memory suitable for RTAS work areas.
Dras.c15 #include <asm/rtas.h>
36 /* RTAS pseries MCE errorlog section. */
76 /* RTAS pseries MCE error types */
86 /* RTAS pseries MCE error sub types */
194 " UPS/battery. Check RTAS error log for details\n"); in handle_system_shutdown()
199 " RTAS error log for details\n"); in handle_system_shutdown()
204 pr_emerg("High ambient temperature detected. Check RTAS" in handle_system_shutdown()
255 pr_info("Non-critical cooling issue detected. Check RTAS error" in rtas_parse_epow_errlog()
260 pr_info("Non-critical power issue detected. Check RTAS error" in rtas_parse_epow_errlog()
269 pr_emerg("Critical power/cooling issue detected. Check RTAS" in rtas_parse_epow_errlog()
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Deeh_pseries.c4 * 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
34 #include <asm/rtas.h>
36 /* RTAS tokens */
92 * The EEH RTAS calls use a tuple consisting of: (buid_hi, buid_lo,
147 * I haven't found *any* systems that don't have that RTAS call in pseries_eeh_get_pe_config_addr()
166 /* Reset PE through RTAS call */ in pseries_eeh_phb_reset()
214 * If RTAS returns a delay value that's above 100ms, cut it in pseries_eeh_phb_configure_bridge()
240 * Buffer for reporting slot-error-detail rtas calls. Its here
242 * RMO where RTAS can access it.
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Dpapr-vpd.c20 #include <asm/rtas-work-area.h>
21 #include <asm/rtas.h>
26 * v2.13 7.3.20 "ibm,get-vpd RTAS Call".
34 * @loc_code: In: Caller-provided location code buffer. Must be RTAS-addressable.
38 * @status: Out: RTAS call status.
53 * into the supplied work area. Handles RTAS retry statuses. Maps RTAS
240 * RTAS to ensure it's in the RMA and avoid a separate work in vpd_sequence_begin()
346 * Context: May sleep. Holds a mutex and an RTAS work area for its
455 * necessary RTAS interactions are performed before returning the fd
Dsmp.c35 #include <asm/rtas.h>
69 "RTAS query-cpu-stopped-state failed: %i\n", status); in smp_query_cpu_stopped()
80 * started from Open Firmware. For anything else, call RTAS with the
108 * If the RTAS start-cpu token does not exist then presume the in smp_startup_cpu()
266 * We know prom_init will not have started them if RTAS supports in smp_init_pseries()
Dio_event_irq.c16 #include <asm/rtas.h>
23 * IO event interrupt is a mechanism provided by RTAS to return
66 * @elog: RTAS error/event log.
89 printk_once(KERN_WARNING "io_event_irq: RTAS extended event " in ioei_find_event()
Dnvram.c18 #include <asm/rtas.h>
184 * Are we using the ibm,rtas-log for oops/panic reports? And if so,
185 * would logging this oops/panic overwrite an RTAS event that rtas_errd
188 * We assume that if rtas_errd hasn't read the RTAS event in
Dmsi.c14 #include <asm/rtas.h>
32 /* RTAS Helpers */
59 * If the RTAS call succeeded, return the number of irqs allocated. in rtas_change_msi()
333 * fact that we using RTAS for MSIs, we don't have the 32 bit MSI RTAS in rtas_hack_32bit_msi_gen2()
453 * RTAS can not disable one MSI at a time. It's all or nothing. Do it
590 /* TODO: handle RTAS cleanup in ->msi_finish() ? */ in pseries_irq_domain_alloc()
693 pr_debug("rtas_msi: no RTAS tokens, no MSI support.\n"); in rtas_msi_init()
697 pr_debug("rtas_msi: Registering RTAS MSI callbacks.\n"); in rtas_msi_init()
DMakefile5 of_helpers.o rtas-work-area.o papr-sysparm.o \
29 obj-$(CONFIG_FA_DUMP) += rtas-fadump.o
/linux-6.14.4/arch/powerpc/platforms/chrp/
Dpci.c21 #include <asm/rtas.h>
95 * Access functions for PCI config space using RTAS calls.
192 struct device_node *rtas; in setup_peg2() local
194 rtas = of_find_node_by_name (root, "rtas"); in setup_peg2()
195 if (rtas) { in setup_peg2()
197 of_node_put(rtas); in setup_peg2()
199 printk ("RTAS supporting Pegasos OF not found, please upgrade" in setup_peg2()
300 printk("No methods for %pOF (model %s), using RTAS\n", in chrp_find_bridges()
/linux-6.14.4/arch/powerpc/sysdev/xics/
Dics-rtas.c18 #include <asm/rtas.h>
20 /* RTAS service tokens */
160 /* Check if RTAS knows about this interrupt */ in ics_rtas_check()
208 /* We enable the RTAS "ICS" if RTAS is present with the in ics_rtas_init()
/linux-6.14.4/arch/powerpc/kvm/
Dbook3s_rtas.c15 #include <asm/rtas.h>
227 * r4 contains the guest physical address of the RTAS args in kvmppc_rtas_hcall()
282 * We only get here if the guest has called RTAS with a bogus in kvmppc_rtas_hcall()
285 * fail the RTAS call. So fail right out to userspace, which in kvmppc_rtas_hcall()
289 * rtas handler call in r3, so enter_rtas could be modified to in kvmppc_rtas_hcall()
/linux-6.14.4/arch/powerpc/platforms/cell/
Dsmp.c36 #include <asm/rtas.h>
60 * started from Open Firmware. For anything else, call RTAS with the
82 * If the RTAS start-cpu token does not exist then presume the in smp_startup_cpu()

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