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/linux/Documentation/devicetree/bindings/display/tegra/
H A Dnvidia,tegra20-epp.yaml4 $id: http://devicetree.org/schemas/display/tegra/nvidia,tegra20-epp.yaml#
15 pattern: "^epp@[0-9a-f]+$"
20 - nvidia,tegra20-epp
21 - nvidia,tegra30-epp
22 - nvidia,tegra114-epp
23 - nvidia,tegra124-epp
26 - const: nvidia,tegra132-epp
27 - const: nvidia,tegra124-epp
44 - const: epp
68 epp@540c0000 {
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/linux/drivers/scsi/
H A Dppa.h18 * to support EPP and scatter-gather. [0.26-athena]
22 * Fixed EPP to handle "software" changing of EPP port data direction.
23 * Chased down EPP timeouts
32 * Fixed id_probe for EPP 1.9 chipsets (misdetected as EPP 1.7)
38 * Hack and slash at the init code (EPP device check routine)
98 #define PPA_EPP_8 3 /* EPP mode, 8 bit */
99 #define PPA_EPP_16 4 /* EPP mode, 16 bit */
100 #define PPA_EPP_32 5 /* EPP mode, 32 bit */
108 "EPP 8 bit",
109 "EPP 16 bit",
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H A Dimm.h37 * Now have byte mode working (only EPP and ECP to go now... :=)
40 * Thirty minutes of further coding results in EPP working on my machine.
91 #define IMM_EPP_8 3 /* EPP mode, 8 bit */
92 #define IMM_EPP_16 4 /* EPP mode, 16 bit */
93 #define IMM_EPP_32 5 /* EPP mode, 32 bit */
101 [IMM_EPP_8] = "EPP 8 bit",
102 [IMM_EPP_16] = "EPP 16 bit",
103 [IMM_EPP_32] = "EPP 32 bit",
H A Dimm.c61 "2 = SPP 8-bit, 3 = EPP 8-bit, 4 = EPP 16-bit, 5 = EPP 32-bit");
272 * Clear EPP timeout bit.
479 * 0010 00aa Select device aa in EPP Winbond mode in imm_cpp()
480 * 0010 10aa Select device aa in EPP mode in imm_cpp()
531 return imm_cpp(ppb, 0x28); /* Select device 0 in EPP mode */ in imm_connect()
753 printk("imm: BUS BUSY - EPP timeout detected\n"); in imm_interrupt()
1019 /* This routine looks for a device and then attempts to use EPP in device_check()
1020 to send a command. If all goes as planned then EPP is available. */ in device_check()
1028 /* Attempt to use EPP for Test Unit Ready */ in device_check()
/linux/tools/power/cpupower/utils/
H A Dcpupower-set.c21 {"epp", required_argument, NULL, 'e'},
44 int epp:1; in cmd_set() member
52 char epp[30], mode[20]; in cmd_set() local
81 if (params.epp) in cmd_set()
83 if (sscanf(optarg, "%29s", epp) != 1) { in cmd_set()
87 params.epp = 1; in cmd_set()
158 if (params.epp) { in cmd_set()
159 ret = cpupower_set_epp(cpu, epp); in cmd_set()
162 "Error setting epp value on CPU %d\n", cpu); in cmd_set()
H A Dcpufreq-info.c439 /* --epp / -z */
443 char *epp; in get_epp() local
445 epp = cpufreq_get_energy_performance_preference(cpu); in get_epp()
446 if (!epp) in get_epp()
449 printf(_(" energy performance preference: %s\n"), epp); in get_epp()
451 cpufreq_put_energy_performance_preference(epp); in get_epp()
539 {"epp", no_argument, NULL, 'z'},
/linux/drivers/cpufreq/
H A Damd-pstate.c92 * AMD Energy Preference Performance (EPP)
93 * The EPP is used in the CCLK DPM controller to drive
95 * short periods of activity. EPP values will be utilized for
97 * display strings corresponding to EPP index in the
220 u64 epp; in shmem_get_epp() local
223 ret = cppc_get_epp_perf(cpudata->cpu, &epp); in shmem_get_epp()
229 return FIELD_GET(AMD_CPPC_EPP_PERF_MASK, epp); in shmem_get_epp()
233 u8 des_perf, u8 max_perf, u8 epp, bool fast_switch) in msr_update_perf() argument
245 value |= FIELD_PREP(AMD_CPPC_EPP_PERF_MASK, epp); in msr_update_perf()
252 epp, in msr_update_perf()
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H A Dintel_pstate.c211 * (EPP) or energy performance bias (EPB),
213 * @epp_policy: Last saved policy used to set EPP/EPB
627 s16 epp = -EOPNOTSUPP; in intel_pstate_get_epp() local
632 * MSR_HWP_REQUEST, so need to read and get EPP. in intel_pstate_get_epp()
635 epp = rdmsrq_on_cpu(cpu_data->cpu, MSR_HWP_REQUEST, in intel_pstate_get_epp()
637 if (epp) in intel_pstate_get_epp()
638 return epp; in intel_pstate_get_epp()
640 epp = (hwp_req_data >> 24) & 0xff; in intel_pstate_get_epp()
643 return epp; in intel_pstate_get_epp()
647 * EPP display strings corresponding to EPP index in the
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/linux/tools/power/x86/x86_energy_perf_policy/
H A Dx86_energy_perf_policy.814 .RB "field: \-\-all | \-\-epb | \-\-hwp-epp | \-\-hwp-min | \-\-hwp-max | \-\-hwp-desired"
51 Energy_Performance_Preference (EPP) field in
54 EPP is the most commonly managed knob in HWP mode,
114 VALUE STRING EPB EPP
127 \fB-a, --all value-string\fP Sets all EPB and EPP and HWP limit fields to the value associated with
138 \fB-P, --hwp-epp\fP set HWP.EPP per-core or per-package.
190 cpu0: HWP_REQ: min 6 max 35 des 0 epp 128 window 0x0 (0*10^0us) use_pkg 0
193 cpu1: HWP_REQ: min 6 max 35 des 0 epp 128 window 0x0 (0*10^0us) use_pkg 0
196 cpu2: HWP_REQ: min 6 max 35 des 0 epp 12
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/linux/include/uapi/linux/
H A Dparport.h58 #define PARPORT_MODE_EPP (1<<2) /* Hardware EPP. */
65 Nibble mode, byte mode, ECP, ECPRLE and EPP are their own
76 #define IEEE1284_MODE_EPPSL (1<<11) /* EPP 1.7 */
93 #define PARPORT_EPP_FAST_32 PARPORT_EPP_FAST /* 32-bit EPP transfers */
94 #define PARPORT_EPP_FAST_16 (1<<2) /* 16-bit EPP transfers */
95 #define PARPORT_EPP_FAST_8 (1<<3) /* 8-bit EPP transfers */
/linux/arch/sparc/include/asm/
H A Dns87303.h40 #define PTR_LEVEL_IRQ 0x80 /* When not ECP/EPP: Use level IRQ */
41 #define PTR_LPT_REG_DIR 0x80 /* When ECP/EPP: LPT CTR controls direction */
46 #define FCR_ZWS_ENA 0x20 /* Enable short host read/write in ECP/EPP */
50 #define PCR_EPP_IEEE 0x02 /* Enable EPP Version 1.9 (IEEE 1284) */
58 #define TUP_EPP_TIMO 0x02 /* Enable EPP timeout IRQ */
/linux/drivers/ata/pata_parport/
H A Ddstr.c21 * 2 8-bit EPP mode
22 * 3 EPP-16
23 * 4 EPP-32
209 char *mode_string[5] = { "4-bit", "8-bit", "EPP-8", "EPP-16", "EPP-32" }; in dstr_log_adapter()
H A Depia.c25 * 3 8-bit EPP mode
26 * 4 16-bit EPP
27 * 5 32-bit EPP
99 * some EPP counters ... currently we know about 3 different block
284 char *mode[6] = { "4-bit", "5/3", "8-bit", "EPP-8", "EPP-16", "EPP-32"}; in epia_log_adapter()
H A Dbpck6.c328 /* EPP */ in bpck6_open()
357 /* EPP */ in bpck6_deselect()
401 return 5; /* Can do EPP */ in bpck6_test_port()
436 char *mode_string[5] = { "4-bit", "8-bit", "EPP-8", "EPP-16", "EPP-32" }; in bpck6_log_adapter()
447 .epp_first = 2, /* 2-5 use epp (need 8 ports) */
H A Don26.c21 * 2 8-bit EPP mode
22 * 3 EPP-16
23 * 4 EPP-32
288 char *mode_string[5] = { "4-bit", "8-bit", "EPP-8", "EPP-16", "EPP-32" }; in on26_log_adapter()
H A Dcomm.c22 * 2 8-bit EPP mode
179 char *mode_string[5] = { "4-bit", "8-bit", "EPP-8", "EPP-16", "EPP-32" }; in comm_log_adapter()
H A Dfrpw.c270 char *mode[6] = { "4-bit", "8-bit", "EPP", "EPP-8", "EPP-16", "EPP-32"}; in frpw_log_adapter()
H A Dbpck.c284 /* This fakes the EPP protocol to turn off EPP ... */ in bpck_force_spp()
474 char *mode_str[5] = { "4-bit", "8-bit", "EPP-8", "EPP-16", "EPP-32" }; in bpck_log_adapter()
/linux/drivers/net/ethernet/sfc/siena/
H A Dsiena_sriov.c406 struct efx_endpoint_page *epp; in __efx_siena_sriov_push_vf_status() local
438 list_for_each_entry(epp, &nic_data->local_page_list, link) { in __efx_siena_sriov_push_vf_status()
447 copy[pos].from_addr = epp->addr; in __efx_siena_sriov_push_vf_status()
1087 struct efx_endpoint_page *epp; in efx_siena_sriov_peer_work() local
1126 epp = kmalloc(sizeof(*epp), GFP_KERNEL); in efx_siena_sriov_peer_work()
1127 if (!epp) in efx_siena_sriov_peer_work()
1129 epp->ptr = dma_alloc_coherent( in efx_siena_sriov_peer_work()
1131 &epp->addr, GFP_KERNEL); in efx_siena_sriov_peer_work()
1132 if (!epp->ptr) { in efx_siena_sriov_peer_work()
1133 kfree(epp); in efx_siena_sriov_peer_work()
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/linux/drivers/parport/
H A Dieee1284_ops.c14 * Software emulated EPP fixes, Fred Barnes, 04/2001.
705 * EPP functions. *
708 /* EPP mode, forward channel, data. */
716 /* set EPP idle state (just to make sure) with strobe low */ in parport_ieee1284_epp_write_data()
752 /* EPP mode, reverse channel, data. */
760 /* set EPP idle state (just to make sure) with strobe high */ in parport_ieee1284_epp_read_data()
796 /* EPP mode, forward channel, addresses. */
804 /* set EPP idle state (just to make sure) with strobe low */ in parport_ieee1284_epp_write_addr()
840 /* EPP mode, reverse channel, addresses. */
848 /* Set EPP idle state (just to make sure) with strobe high */ in parport_ieee1284_epp_read_addr()
H A Dparport_pc.c31 * base+3 EPP address
32 * base+4 EPP data
204 * Clear TIMEOUT BIT in EPP MODE
300 /* EPP timeout should never occur... */ in parport_pc_epp_read_data()
301 … printk(KERN_DEBUG "%s: EPP timeout occurred while talking to w91284pic (should not have done)\n", in parport_pc_epp_read_data()
329 /* EPP timeout */ in parport_pc_epp_read_data()
974 "EPP and SPP", in show_parconfig_smsc37c669()
976 "ECP and EPP" }; in show_parconfig_smsc37c669()
1009 pr_info("SMSC LPT Config: Port mode=%s, EPP version =%s\n", in show_parconfig_smsc37c669()
1054 "EPP-1.9 and SPP", in show_parconfig_winbond()
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H A Dparport_ip32.c19 * Hardware SPP (a.k.a. compatibility), EPP, and ECP modes are
30 * EPP and ECP mode need to be tested. I currently do not own any
42 * This chip supports SPP, bidirectional, EPP and ECP modes. It has a 16 byte
141 * @eppAddr: EPP Address Register
142 * @eppData0: EPP Data Register 0
143 * @eppData1: EPP Data Register 1
144 * @eppData2: EPP Data Register 2
145 * @eppData3: EPP Data Register 3
179 #define DSR_TIMEOUT (1U << 0) /* EPP timeout */
327 "ECP", "EPP", "???", in parport_ip32_dump_state()
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H A Dparport_gsc.c47 * Clear TIMEOUT BIT in EPP MODE
138 * first clear an eventually pending EPP timeout in parport_SPP_supported()
140 * that does not even respond to SPP cycles if an EPP in parport_SPP_supported()
299 printmode(EPP); in parport_gsc_probe_port()
/linux/Documentation/devicetree/bindings/clock/
H A Dzynq-7000.txt1 Device Tree Clock bindings for the Zynq 7000 EPP
3 The Zynq EPP has several different clk providers, each with there own bindings.
/linux/Documentation/driver-api/
H A Dparport-lowlevel.rst50 EPP::
85 The port functions can be split into three groups: SPP, EPP, and ECP.
93 EPP (Enhanced Parallel Port) functions are provided for reading and
94 writing in IEEE 1284 EPP mode, and ECP (Extended Capabilities Port)
98 Hardware assistance for EPP and/or ECP transfers may or may not be
174 PARPORT_MODE_EPP The hardware can assist with EPP
1474 port->ops->epp_write_data - write EPP data
1494 Writes data in EPP mode, and returns the number of bytes written.
1512 port->ops->epp_read_data - read EPP data
1532 Reads data in EPP mode, and returns the number of bytes read.
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