| blob | 3bb07e5e43cdc24f64ce70716a1530431f067cd5 |
1 /*
2 * PowerNV OPAL API wrappers
3 *
4 * Copyright 2011 IBM Corp.
5 *
6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU General Public License
8 * as published by the Free Software Foundation; either version
9 * 2 of the License, or (at your option) any later version.
10 */
12 #include <asm/ppc_asm.h>
13 #include <asm/hvcall.h>
14 #include <asm/asm-offsets.h>
15 #include <asm/opal.h>
17 /* TODO:
18 *
19 * - Trace irqs in/off (needs saving/restoring all args, argh...)
20 * - Get r11 feed up by Dave so I can have better register usage
21 */
22 #define OPAL_CALL(name, token) \
23 _GLOBAL(name); \
24 mflr r0; \
25 mfcr r12; \
26 std r0,16(r1); \
27 std r12,8(r1); \
28 std r1,PACAR1(r13); \
29 li r0,0; \
30 mfmsr r12; \
31 ori r0,r0,MSR_EE; \
32 std r12,PACASAVEDMSR(r13); \
33 andc r12,r12,r0; \
34 mtmsrd r12,1; \
35 LOAD_REG_ADDR(r0,.opal_return); \
36 mtlr r0; \
37 li r0,MSR_DR|MSR_IR; \
38 andc r12,r12,r0; \
39 li r0,token; \
40 mtspr SPRN_HSRR1,r12; \
41 LOAD_REG_ADDR(r11,opal); \
42 ld r12,8(r11); \
43 ld r2,0(r11); \
44 mtspr SPRN_HSRR0,r12; \
45 hrfid
47 _STATIC(opal_return)
48 ld r2,PACATOC(r13);
49 ld r4,8(r1);
50 ld r5,16(r1);
51 ld r6,PACASAVEDMSR(r13);
52 mtspr SPRN_SRR0,r5;
53 mtspr SPRN_SRR1,r6;
54 mtcr r4;
55 rfid
57 OPAL_CALL(opal_console_write, OPAL_CONSOLE_WRITE);
58 OPAL_CALL(opal_console_read, OPAL_CONSOLE_READ);
59 OPAL_CALL(opal_console_write_buffer_space, OPAL_CONSOLE_WRITE_BUFFER_SPACE);
60 OPAL_CALL(opal_rtc_read, OPAL_RTC_READ);
61 OPAL_CALL(opal_rtc_write, OPAL_RTC_WRITE);
62 OPAL_CALL(opal_cec_power_down, OPAL_CEC_POWER_DOWN);
63 OPAL_CALL(opal_cec_reboot, OPAL_CEC_REBOOT);
64 OPAL_CALL(opal_read_nvram, OPAL_READ_NVRAM);
65 OPAL_CALL(opal_write_nvram, OPAL_WRITE_NVRAM);
66 OPAL_CALL(opal_handle_interrupt, OPAL_HANDLE_INTERRUPT);
67 OPAL_CALL(opal_poll_events, OPAL_POLL_EVENTS);
68 OPAL_CALL(opal_pci_set_hub_tce_memory, OPAL_PCI_SET_HUB_TCE_MEMORY);
69 OPAL_CALL(opal_pci_set_phb_tce_memory, OPAL_PCI_SET_PHB_TCE_MEMORY);
70 OPAL_CALL(opal_pci_config_read_byte, OPAL_PCI_CONFIG_READ_BYTE);
71 OPAL_CALL(opal_pci_config_read_half_word, OPAL_PCI_CONFIG_READ_HALF_WORD);
72 OPAL_CALL(opal_pci_config_read_word, OPAL_PCI_CONFIG_READ_WORD);
73 OPAL_CALL(opal_pci_config_write_byte, OPAL_PCI_CONFIG_WRITE_BYTE);
74 OPAL_CALL(opal_pci_config_write_half_word, OPAL_PCI_CONFIG_WRITE_HALF_WORD);
75 OPAL_CALL(opal_pci_config_write_word, OPAL_PCI_CONFIG_WRITE_WORD);
76 OPAL_CALL(opal_set_xive, OPAL_SET_XIVE);
77 OPAL_CALL(opal_get_xive, OPAL_GET_XIVE);
78 OPAL_CALL(opal_register_exception_handler, OPAL_REGISTER_OPAL_EXCEPTION_HANDLER);
79 OPAL_CALL(opal_pci_eeh_freeze_status, OPAL_PCI_EEH_FREEZE_STATUS);
80 OPAL_CALL(opal_pci_eeh_freeze_clear, OPAL_PCI_EEH_FREEZE_CLEAR);
81 OPAL_CALL(opal_pci_shpc, OPAL_PCI_SHPC);
82 OPAL_CALL(opal_pci_phb_mmio_enable, OPAL_PCI_PHB_MMIO_ENABLE);
83 OPAL_CALL(opal_pci_set_phb_mem_window, OPAL_PCI_SET_PHB_MEM_WINDOW);
84 OPAL_CALL(opal_pci_map_pe_mmio_window, OPAL_PCI_MAP_PE_MMIO_WINDOW);
85 OPAL_CALL(opal_pci_set_phb_table_memory, OPAL_PCI_SET_PHB_TABLE_MEMORY);
86 OPAL_CALL(opal_pci_set_pe, OPAL_PCI_SET_PE);
87 OPAL_CALL(opal_pci_set_peltv, OPAL_PCI_SET_PELTV);
88 OPAL_CALL(opal_pci_set_mve, OPAL_PCI_SET_MVE);
89 OPAL_CALL(opal_pci_set_mve_enable, OPAL_PCI_SET_MVE_ENABLE);
90 OPAL_CALL(opal_pci_get_xive_reissue, OPAL_PCI_GET_XIVE_REISSUE);
91 OPAL_CALL(opal_pci_set_xive_reissue, OPAL_PCI_SET_XIVE_REISSUE);
92 OPAL_CALL(opal_pci_set_xive_pe, OPAL_PCI_SET_XIVE_PE);
93 OPAL_CALL(opal_get_xive_source, OPAL_GET_XIVE_SOURCE);
94 OPAL_CALL(opal_get_msi_32, OPAL_GET_MSI_32);
95 OPAL_CALL(opal_get_msi_64, OPAL_GET_MSI_64);
96 OPAL_CALL(opal_start_cpu, OPAL_START_CPU);
97 OPAL_CALL(opal_query_cpu_status, OPAL_QUERY_CPU_STATUS);
98 OPAL_CALL(opal_write_oppanel, OPAL_WRITE_OPPANEL);
99 OPAL_CALL(opal_pci_map_pe_dma_window, OPAL_PCI_MAP_PE_DMA_WINDOW);
100 OPAL_CALL(opal_pci_map_pe_dma_window_real, OPAL_PCI_MAP_PE_DMA_WINDOW_REAL);
101 OPAL_CALL(opal_pci_reset, OPAL_PCI_RESET);
102 OPAL_CALL(opal_pci_get_hub_diag_data, OPAL_PCI_GET_HUB_DIAG_DATA);
103 OPAL_CALL(opal_pci_get_phb_diag_data, OPAL_PCI_GET_PHB_DIAG_DATA);
104 OPAL_CALL(opal_pci_fence_phb, OPAL_PCI_FENCE_PHB);
105 OPAL_CALL(opal_pci_reinit, OPAL_PCI_REINIT);
106 OPAL_CALL(opal_pci_mask_pe_error, OPAL_PCI_MASK_PE_ERROR);
107 OPAL_CALL(opal_set_slot_led_status, OPAL_SET_SLOT_LED_STATUS);
108 OPAL_CALL(opal_get_epow_status, OPAL_GET_EPOW_STATUS);
109 OPAL_CALL(opal_set_system_attention_led, OPAL_SET_SYSTEM_ATTENTION_LED);