root / hw / pci_host_template.h @ 4677d8ed
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1 | 4f5e19e6 | Isaku Yamahata | /*
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2 | 4f5e19e6 | Isaku Yamahata | * QEMU Common PCI Host bridge configuration data space access routines.
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3 | 4f5e19e6 | Isaku Yamahata | *
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4 | 4f5e19e6 | Isaku Yamahata | * Copyright (c) 2006 Fabrice Bellard
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5 | 4f5e19e6 | Isaku Yamahata | *
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6 | 4f5e19e6 | Isaku Yamahata | * Permission is hereby granted, free of charge, to any person obtaining a copy
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7 | 4f5e19e6 | Isaku Yamahata | * of this software and associated documentation files (the "Software"), to deal
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8 | 4f5e19e6 | Isaku Yamahata | * in the Software without restriction, including without limitation the rights
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9 | 4f5e19e6 | Isaku Yamahata | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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10 | 4f5e19e6 | Isaku Yamahata | * copies of the Software, and to permit persons to whom the Software is
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11 | 4f5e19e6 | Isaku Yamahata | * furnished to do so, subject to the following conditions:
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12 | 4f5e19e6 | Isaku Yamahata | *
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13 | 4f5e19e6 | Isaku Yamahata | * The above copyright notice and this permission notice shall be included in
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14 | 4f5e19e6 | Isaku Yamahata | * all copies or substantial portions of the Software.
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15 | 4f5e19e6 | Isaku Yamahata | *
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16 | 4f5e19e6 | Isaku Yamahata | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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17 | 4f5e19e6 | Isaku Yamahata | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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18 | 4f5e19e6 | Isaku Yamahata | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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19 | 4f5e19e6 | Isaku Yamahata | * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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20 | 4f5e19e6 | Isaku Yamahata | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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21 | 4f5e19e6 | Isaku Yamahata | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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22 | 4f5e19e6 | Isaku Yamahata | * THE SOFTWARE.
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23 | 4f5e19e6 | Isaku Yamahata | */
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24 | 4f5e19e6 | Isaku Yamahata | |
25 | 4f5e19e6 | Isaku Yamahata | /* Worker routines for a PCI host controller that uses an {address,data}
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26 | 4f5e19e6 | Isaku Yamahata | register pair to access PCI configuration space. */
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27 | 4f5e19e6 | Isaku Yamahata | |
28 | 4f5e19e6 | Isaku Yamahata | static void glue(pci_host_data_writeb, PCI_HOST_SUFFIX)( |
29 | 4f5e19e6 | Isaku Yamahata | void* opaque, PCI_ADDR_T addr, uint32_t val)
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30 | 4f5e19e6 | Isaku Yamahata | { |
31 | 4f5e19e6 | Isaku Yamahata | PCIHostState *s = opaque; |
32 | 4f5e19e6 | Isaku Yamahata | |
33 | 4f5e19e6 | Isaku Yamahata | PCI_DPRINTF("writeb addr " TARGET_FMT_plx " val %x\n", |
34 | 4f5e19e6 | Isaku Yamahata | (target_phys_addr_t)addr, val); |
35 | 4f5e19e6 | Isaku Yamahata | if (s->config_reg & (1u << 31)) |
36 | 4f5e19e6 | Isaku Yamahata | pci_data_write(s->bus, s->config_reg | (addr & 3), val, 1); |
37 | 4f5e19e6 | Isaku Yamahata | } |
38 | 4f5e19e6 | Isaku Yamahata | |
39 | 4f5e19e6 | Isaku Yamahata | static void glue(pci_host_data_writew, PCI_HOST_SUFFIX)( |
40 | 4f5e19e6 | Isaku Yamahata | void* opaque, PCI_ADDR_T addr, uint32_t val)
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41 | 4f5e19e6 | Isaku Yamahata | { |
42 | 4f5e19e6 | Isaku Yamahata | PCIHostState *s = opaque; |
43 | 4f5e19e6 | Isaku Yamahata | #ifdef TARGET_WORDS_BIGENDIAN
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44 | 4f5e19e6 | Isaku Yamahata | val = bswap16(val); |
45 | 4f5e19e6 | Isaku Yamahata | #endif
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46 | 4f5e19e6 | Isaku Yamahata | PCI_DPRINTF("writew addr " TARGET_FMT_plx " val %x\n", |
47 | 4f5e19e6 | Isaku Yamahata | (target_phys_addr_t)addr, val); |
48 | 4f5e19e6 | Isaku Yamahata | if (s->config_reg & (1u << 31)) |
49 | 4f5e19e6 | Isaku Yamahata | pci_data_write(s->bus, s->config_reg | (addr & 3), val, 2); |
50 | 4f5e19e6 | Isaku Yamahata | } |
51 | 4f5e19e6 | Isaku Yamahata | |
52 | 4f5e19e6 | Isaku Yamahata | static void glue(pci_host_data_writel, PCI_HOST_SUFFIX)( |
53 | 4f5e19e6 | Isaku Yamahata | void* opaque, PCI_ADDR_T addr, uint32_t val)
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54 | 4f5e19e6 | Isaku Yamahata | { |
55 | 4f5e19e6 | Isaku Yamahata | PCIHostState *s = opaque; |
56 | 4f5e19e6 | Isaku Yamahata | #ifdef TARGET_WORDS_BIGENDIAN
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57 | 4f5e19e6 | Isaku Yamahata | val = bswap32(val); |
58 | 4f5e19e6 | Isaku Yamahata | #endif
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59 | 4f5e19e6 | Isaku Yamahata | PCI_DPRINTF("writel addr " TARGET_FMT_plx " val %x\n", |
60 | 4f5e19e6 | Isaku Yamahata | (target_phys_addr_t)addr, val); |
61 | 4f5e19e6 | Isaku Yamahata | if (s->config_reg & (1u << 31)) |
62 | 4f5e19e6 | Isaku Yamahata | pci_data_write(s->bus, s->config_reg, val, 4);
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63 | 4f5e19e6 | Isaku Yamahata | } |
64 | 4f5e19e6 | Isaku Yamahata | |
65 | 4f5e19e6 | Isaku Yamahata | static uint32_t glue(pci_host_data_readb, PCI_HOST_SUFFIX)(
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66 | 4f5e19e6 | Isaku Yamahata | void* opaque, PCI_ADDR_T addr)
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67 | 4f5e19e6 | Isaku Yamahata | { |
68 | 4f5e19e6 | Isaku Yamahata | PCIHostState *s = opaque; |
69 | 4f5e19e6 | Isaku Yamahata | uint32_t val; |
70 | 4f5e19e6 | Isaku Yamahata | |
71 | 4f5e19e6 | Isaku Yamahata | if (!(s->config_reg & (1 << 31))) |
72 | 4f5e19e6 | Isaku Yamahata | return 0xff; |
73 | 4f5e19e6 | Isaku Yamahata | val = pci_data_read(s->bus, s->config_reg | (addr & 3), 1); |
74 | 4f5e19e6 | Isaku Yamahata | PCI_DPRINTF("readb addr " TARGET_FMT_plx " val %x\n", |
75 | 4f5e19e6 | Isaku Yamahata | (target_phys_addr_t)addr, val); |
76 | 4f5e19e6 | Isaku Yamahata | return val;
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77 | 4f5e19e6 | Isaku Yamahata | } |
78 | 4f5e19e6 | Isaku Yamahata | |
79 | 4f5e19e6 | Isaku Yamahata | static uint32_t glue(pci_host_data_readw, PCI_HOST_SUFFIX)(
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80 | 4f5e19e6 | Isaku Yamahata | void* opaque, PCI_ADDR_T addr)
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81 | 4f5e19e6 | Isaku Yamahata | { |
82 | 4f5e19e6 | Isaku Yamahata | PCIHostState *s = opaque; |
83 | 4f5e19e6 | Isaku Yamahata | uint32_t val; |
84 | 4f5e19e6 | Isaku Yamahata | if (!(s->config_reg & (1 << 31))) |
85 | 4f5e19e6 | Isaku Yamahata | return 0xffff; |
86 | 4f5e19e6 | Isaku Yamahata | val = pci_data_read(s->bus, s->config_reg | (addr & 3), 2); |
87 | 4f5e19e6 | Isaku Yamahata | PCI_DPRINTF("readw addr " TARGET_FMT_plx " val %x\n", |
88 | 4f5e19e6 | Isaku Yamahata | (target_phys_addr_t)addr, val); |
89 | 4f5e19e6 | Isaku Yamahata | #ifdef TARGET_WORDS_BIGENDIAN
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90 | 4f5e19e6 | Isaku Yamahata | val = bswap16(val); |
91 | 4f5e19e6 | Isaku Yamahata | #endif
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92 | 4f5e19e6 | Isaku Yamahata | return val;
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93 | 4f5e19e6 | Isaku Yamahata | } |
94 | 4f5e19e6 | Isaku Yamahata | |
95 | 4f5e19e6 | Isaku Yamahata | static uint32_t glue(pci_host_data_readl, PCI_HOST_SUFFIX)(
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96 | 4f5e19e6 | Isaku Yamahata | void* opaque, PCI_ADDR_T addr)
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97 | 4f5e19e6 | Isaku Yamahata | { |
98 | 4f5e19e6 | Isaku Yamahata | PCIHostState *s = opaque; |
99 | 4f5e19e6 | Isaku Yamahata | uint32_t val; |
100 | 4f5e19e6 | Isaku Yamahata | if (!(s->config_reg & (1 << 31))) |
101 | 4f5e19e6 | Isaku Yamahata | return 0xffffffff; |
102 | 4f5e19e6 | Isaku Yamahata | val = pci_data_read(s->bus, s->config_reg | (addr & 3), 4); |
103 | 4f5e19e6 | Isaku Yamahata | PCI_DPRINTF("readl addr " TARGET_FMT_plx " val %x\n", |
104 | 4f5e19e6 | Isaku Yamahata | (target_phys_addr_t)addr, val); |
105 | 4f5e19e6 | Isaku Yamahata | #ifdef TARGET_WORDS_BIGENDIAN
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106 | 4f5e19e6 | Isaku Yamahata | val = bswap32(val); |
107 | 4f5e19e6 | Isaku Yamahata | #endif
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108 | 4f5e19e6 | Isaku Yamahata | return val;
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109 | 4f5e19e6 | Isaku Yamahata | } |