diff options
Diffstat (limited to 'arch/powerpc/platforms/powernv/opal-wrappers.S')
-rw-r--r-- | arch/powerpc/platforms/powernv/opal-wrappers.S | 101 |
1 files changed, 101 insertions, 0 deletions
diff --git a/arch/powerpc/platforms/powernv/opal-wrappers.S b/arch/powerpc/platforms/powernv/opal-wrappers.S new file mode 100644 index 00000000000..4a3f46d8533 --- /dev/null +++ b/arch/powerpc/platforms/powernv/opal-wrappers.S | |||
@@ -0,0 +1,101 @@ | |||
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 | */ | ||
11 | |||
12 | #include <asm/ppc_asm.h> | ||
13 | #include <asm/hvcall.h> | ||
14 | #include <asm/asm-offsets.h> | ||
15 | #include <asm/opal.h> | ||
16 | |||
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 | ||
46 | |||
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 | ||
56 | |||
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); | ||