xref: /openbmc/qemu/include/hw/pci-host/q35.h (revision b07bf7b7)
1 /*
2  * q35.h
3  *
4  * Copyright (c) 2009 Isaku Yamahata <yamahata at valinux co jp>
5  *                    VA Linux Systems Japan K.K.
6  * Copyright (C) 2012 Jason Baron <jbaron@redhat.com>
7  *
8  * This program is free software; you can redistribute it and/or modify
9  * it under the terms of the GNU General Public License as published by
10  * the Free Software Foundation; either version 2 of the License, or
11  * (at your option) any later version.
12  *
13  * This program is distributed in the hope that it will be useful,
14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
16  * GNU General Public License for more details.
17  *
18  * You should have received a copy of the GNU General Public License
19  * along with this program; if not, see <http://www.gnu.org/licenses/>
20  */
21 
22 #ifndef HW_Q35_H
23 #define HW_Q35_H
24 
25 #include "hw/pci/pci_device.h"
26 #include "hw/pci/pcie_host.h"
27 #include "hw/pci-host/pam.h"
28 #include "qemu/units.h"
29 #include "qemu/range.h"
30 #include "qom/object.h"
31 
32 #define TYPE_Q35_HOST_DEVICE "q35-pcihost"
33 OBJECT_DECLARE_SIMPLE_TYPE(Q35PCIHost, Q35_HOST_DEVICE)
34 
35 #define TYPE_MCH_PCI_DEVICE "mch"
36 OBJECT_DECLARE_SIMPLE_TYPE(MCHPCIState, MCH_PCI_DEVICE)
37 
38 struct MCHPCIState {
39     /*< private >*/
40     PCIDevice parent_obj;
41     /*< public >*/
42 
43     MemoryRegion *ram_memory;
44     MemoryRegion *pci_address_space;
45     MemoryRegion *system_memory;
46     MemoryRegion *address_space_io;
47     PAMMemoryRegion pam_regions[PAM_REGIONS_COUNT];
48     MemoryRegion smram_region, open_high_smram;
49     MemoryRegion smram, low_smram, high_smram;
50     MemoryRegion tseg_blackhole, tseg_window;
51     MemoryRegion smbase_blackhole, smbase_window;
52     bool has_smram_at_smbase;
53     bool has_smm_ranges;
54     Range pci_hole;
55     uint64_t below_4g_mem_size;
56     uint64_t above_4g_mem_size;
57     uint64_t pci_hole64_size;
58     uint16_t ext_tseg_mbytes;
59 };
60 
61 struct Q35PCIHost {
62     /*< private >*/
63     PCIExpressHost parent_obj;
64     /*< public >*/
65 
66     bool pci_hole64_fix;
67     MCHPCIState mch;
68 };
69 
70 #define Q35_MASK(bit, ms_bit, ls_bit) \
71 ((uint##bit##_t)(((1ULL << ((ms_bit) + 1)) - 1) & ~((1ULL << ls_bit) - 1)))
72 
73 /*
74  * gmch part
75  */
76 
77 /* PCI configuration */
78 #define MCH_HOST_BRIDGE                        "MCH"
79 
80 #define MCH_HOST_BRIDGE_CONFIG_ADDR            0xcf8
81 #define MCH_HOST_BRIDGE_CONFIG_DATA            0xcfc
82 
83 /* D0:F0 configuration space */
84 #define MCH_HOST_BRIDGE_REVISION_DEFAULT       0x0
85 
86 #define MCH_HOST_BRIDGE_EXT_TSEG_MBYTES        0x50
87 #define MCH_HOST_BRIDGE_EXT_TSEG_MBYTES_SIZE   2
88 #define MCH_HOST_BRIDGE_EXT_TSEG_MBYTES_QUERY  0xffff
89 #define MCH_HOST_BRIDGE_EXT_TSEG_MBYTES_MAX    0xfff
90 
91 #define MCH_HOST_BRIDGE_SMBASE_SIZE            (128 * KiB)
92 #define MCH_HOST_BRIDGE_SMBASE_ADDR            0x30000
93 #define MCH_HOST_BRIDGE_F_SMBASE               0x9c
94 #define MCH_HOST_BRIDGE_F_SMBASE_QUERY         0xff
95 #define MCH_HOST_BRIDGE_F_SMBASE_IN_RAM        0x01
96 #define MCH_HOST_BRIDGE_F_SMBASE_LCK           0x02
97 
98 #define MCH_HOST_BRIDGE_PCIEXBAR               0x60    /* 64bit register */
99 #define MCH_HOST_BRIDGE_PCIEXBAR_SIZE          8       /* 64bit register */
100 #define MCH_HOST_BRIDGE_PCIEXBAR_DEFAULT       0xb0000000
101 #define MCH_HOST_BRIDGE_PCIEXBAR_MAX           (0x10000000) /* 256M */
102 #define MCH_HOST_BRIDGE_PCIEXBAR_ADMSK         Q35_MASK(64, 35, 28)
103 #define MCH_HOST_BRIDGE_PCIEXBAR_128ADMSK      ((uint64_t)(1 << 26))
104 #define MCH_HOST_BRIDGE_PCIEXBAR_64ADMSK       ((uint64_t)(1 << 25))
105 #define MCH_HOST_BRIDGE_PCIEXBAR_LENGTH_MASK   ((uint64_t)(0x3 << 1))
106 #define MCH_HOST_BRIDGE_PCIEXBAR_LENGTH_256M   ((uint64_t)(0x0 << 1))
107 #define MCH_HOST_BRIDGE_PCIEXBAR_LENGTH_128M   ((uint64_t)(0x1 << 1))
108 #define MCH_HOST_BRIDGE_PCIEXBAR_LENGTH_64M    ((uint64_t)(0x2 << 1))
109 #define MCH_HOST_BRIDGE_PCIEXBAR_LENGTH_RVD    ((uint64_t)(0x3 << 1))
110 #define MCH_HOST_BRIDGE_PCIEXBAREN             ((uint64_t)1)
111 
112 #define MCH_HOST_BRIDGE_PAM_NB                 7
113 #define MCH_HOST_BRIDGE_PAM_SIZE               7
114 #define MCH_HOST_BRIDGE_PAM0                   0x90
115 #define MCH_HOST_BRIDGE_PAM_BIOS_AREA          0xf0000
116 #define MCH_HOST_BRIDGE_PAM_AREA_SIZE          0x10000 /* 16KB */
117 #define MCH_HOST_BRIDGE_PAM1                   0x91
118 #define MCH_HOST_BRIDGE_PAM_EXPAN_AREA         0xc0000
119 #define MCH_HOST_BRIDGE_PAM_EXPAN_SIZE         0x04000
120 #define MCH_HOST_BRIDGE_PAM2                   0x92
121 #define MCH_HOST_BRIDGE_PAM3                   0x93
122 #define MCH_HOST_BRIDGE_PAM4                   0x94
123 #define MCH_HOST_BRIDGE_PAM_EXBIOS_AREA        0xe0000
124 #define MCH_HOST_BRIDGE_PAM_EXBIOS_SIZE        0x04000
125 #define MCH_HOST_BRIDGE_PAM5                   0x95
126 #define MCH_HOST_BRIDGE_PAM6                   0x96
127 #define MCH_HOST_BRIDGE_PAM_WE_HI              ((uint8_t)(0x2 << 4))
128 #define MCH_HOST_BRIDGE_PAM_RE_HI              ((uint8_t)(0x1 << 4))
129 #define MCH_HOST_BRIDGE_PAM_HI_MASK            ((uint8_t)(0x3 << 4))
130 #define MCH_HOST_BRIDGE_PAM_WE_LO              ((uint8_t)0x2)
131 #define MCH_HOST_BRIDGE_PAM_RE_LO              ((uint8_t)0x1)
132 #define MCH_HOST_BRIDGE_PAM_LO_MASK            ((uint8_t)0x3)
133 #define MCH_HOST_BRIDGE_PAM_WE                 ((uint8_t)0x2)
134 #define MCH_HOST_BRIDGE_PAM_RE                 ((uint8_t)0x1)
135 #define MCH_HOST_BRIDGE_PAM_MASK               ((uint8_t)0x3)
136 
137 #define MCH_HOST_BRIDGE_SMRAM                  0x9d
138 #define MCH_HOST_BRIDGE_SMRAM_SIZE             2
139 #define MCH_HOST_BRIDGE_SMRAM_D_OPEN           ((uint8_t)(1 << 6))
140 #define MCH_HOST_BRIDGE_SMRAM_D_CLS            ((uint8_t)(1 << 5))
141 #define MCH_HOST_BRIDGE_SMRAM_D_LCK            ((uint8_t)(1 << 4))
142 #define MCH_HOST_BRIDGE_SMRAM_G_SMRAME         ((uint8_t)(1 << 3))
143 #define MCH_HOST_BRIDGE_SMRAM_C_BASE_SEG_MASK  ((uint8_t)0x7)
144 #define MCH_HOST_BRIDGE_SMRAM_C_BASE_SEG       ((uint8_t)0x2)  /* hardwired to b010 */
145 #define MCH_HOST_BRIDGE_SMRAM_C_BASE           0xa0000
146 #define MCH_HOST_BRIDGE_SMRAM_C_END            0xc0000
147 #define MCH_HOST_BRIDGE_SMRAM_C_SIZE           0x20000
148 #define MCH_HOST_BRIDGE_UPPER_SYSTEM_BIOS_END  0x100000
149 #define MCH_HOST_BRIDGE_SMRAM_DEFAULT           \
150     MCH_HOST_BRIDGE_SMRAM_C_BASE_SEG
151 #define MCH_HOST_BRIDGE_SMRAM_WMASK             \
152     (MCH_HOST_BRIDGE_SMRAM_D_OPEN |             \
153      MCH_HOST_BRIDGE_SMRAM_D_CLS |              \
154      MCH_HOST_BRIDGE_SMRAM_D_LCK |              \
155      MCH_HOST_BRIDGE_SMRAM_G_SMRAME)
156 #define MCH_HOST_BRIDGE_SMRAM_WMASK_LCK         \
157     MCH_HOST_BRIDGE_SMRAM_D_CLS
158 
159 #define MCH_HOST_BRIDGE_ESMRAMC                0x9e
160 #define MCH_HOST_BRIDGE_ESMRAMC_H_SMRAME       ((uint8_t)(1 << 7))
161 #define MCH_HOST_BRIDGE_ESMRAMC_E_SMERR        ((uint8_t)(1 << 6))
162 #define MCH_HOST_BRIDGE_ESMRAMC_SM_CACHE       ((uint8_t)(1 << 5))
163 #define MCH_HOST_BRIDGE_ESMRAMC_SM_L1          ((uint8_t)(1 << 4))
164 #define MCH_HOST_BRIDGE_ESMRAMC_SM_L2          ((uint8_t)(1 << 3))
165 #define MCH_HOST_BRIDGE_ESMRAMC_TSEG_SZ_MASK   ((uint8_t)(0x3 << 1))
166 #define MCH_HOST_BRIDGE_ESMRAMC_TSEG_SZ_1MB    ((uint8_t)(0x0 << 1))
167 #define MCH_HOST_BRIDGE_ESMRAMC_TSEG_SZ_2MB    ((uint8_t)(0x1 << 1))
168 #define MCH_HOST_BRIDGE_ESMRAMC_TSEG_SZ_8MB    ((uint8_t)(0x2 << 1))
169 #define MCH_HOST_BRIDGE_ESMRAMC_T_EN           ((uint8_t)1)
170 #define MCH_HOST_BRIDGE_ESMRAMC_DEFAULT \
171     (MCH_HOST_BRIDGE_ESMRAMC_SM_CACHE | \
172      MCH_HOST_BRIDGE_ESMRAMC_SM_L1 |    \
173      MCH_HOST_BRIDGE_ESMRAMC_SM_L2)
174 #define MCH_HOST_BRIDGE_ESMRAMC_WMASK               \
175     (MCH_HOST_BRIDGE_ESMRAMC_H_SMRAME |             \
176      MCH_HOST_BRIDGE_ESMRAMC_TSEG_SZ_MASK |         \
177      MCH_HOST_BRIDGE_ESMRAMC_T_EN)
178 #define MCH_HOST_BRIDGE_ESMRAMC_WMASK_LCK     0
179 
180 /* D1:F0 PCIE* port*/
181 #define MCH_PCIE_DEV                           1
182 #define MCH_PCIE_FUNC                          0
183 
184 uint64_t mch_mcfg_base(void);
185 
186 /*
187  * Arbitrary but unique BNF number for IOAPIC device.
188  *
189  * TODO: make sure there would have no conflict with real PCI bus
190  */
191 #define Q35_PSEUDO_BUS_PLATFORM         (0xff)
192 #define Q35_PSEUDO_DEVFN_IOAPIC         (0x00)
193 
194 #endif /* HW_Q35_H */
195