This source file includes following definitions.
- nvkm_pci_rd32
- nvkm_pci_wr08
- nvkm_pci_wr32
- nvkm_pci_mask
- nvkm_pci_rom_shadow
- nvkm_pci_intr
- nvkm_pci_fini
- nvkm_pci_preinit
- nvkm_pci_oneinit
- nvkm_pci_init
- nvkm_pci_dtor
- nvkm_pci_new_
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24 #include "priv.h"
25 #include "agp.h"
26
27 #include <core/option.h>
28 #include <core/pci.h>
29 #include <subdev/mc.h>
30
31 u32
32 nvkm_pci_rd32(struct nvkm_pci *pci, u16 addr)
33 {
34 return pci->func->rd32(pci, addr);
35 }
36
37 void
38 nvkm_pci_wr08(struct nvkm_pci *pci, u16 addr, u8 data)
39 {
40 pci->func->wr08(pci, addr, data);
41 }
42
43 void
44 nvkm_pci_wr32(struct nvkm_pci *pci, u16 addr, u32 data)
45 {
46 pci->func->wr32(pci, addr, data);
47 }
48
49 u32
50 nvkm_pci_mask(struct nvkm_pci *pci, u16 addr, u32 mask, u32 value)
51 {
52 u32 data = pci->func->rd32(pci, addr);
53 pci->func->wr32(pci, addr, (data & ~mask) | value);
54 return data;
55 }
56
57 void
58 nvkm_pci_rom_shadow(struct nvkm_pci *pci, bool shadow)
59 {
60 u32 data = nvkm_pci_rd32(pci, 0x0050);
61 if (shadow)
62 data |= 0x00000001;
63 else
64 data &= ~0x00000001;
65 nvkm_pci_wr32(pci, 0x0050, data);
66 }
67
68 static irqreturn_t
69 nvkm_pci_intr(int irq, void *arg)
70 {
71 struct nvkm_pci *pci = arg;
72 struct nvkm_device *device = pci->subdev.device;
73 bool handled = false;
74
75 if (pci->irq < 0)
76 return IRQ_HANDLED;
77
78 nvkm_mc_intr_unarm(device);
79 if (pci->msi)
80 pci->func->msi_rearm(pci);
81 nvkm_mc_intr(device, &handled);
82 nvkm_mc_intr_rearm(device);
83 return handled ? IRQ_HANDLED : IRQ_NONE;
84 }
85
86 static int
87 nvkm_pci_fini(struct nvkm_subdev *subdev, bool suspend)
88 {
89 struct nvkm_pci *pci = nvkm_pci(subdev);
90
91 if (pci->agp.bridge)
92 nvkm_agp_fini(pci);
93
94 return 0;
95 }
96
97 static int
98 nvkm_pci_preinit(struct nvkm_subdev *subdev)
99 {
100 struct nvkm_pci *pci = nvkm_pci(subdev);
101 if (pci->agp.bridge)
102 nvkm_agp_preinit(pci);
103 return 0;
104 }
105
106 static int
107 nvkm_pci_oneinit(struct nvkm_subdev *subdev)
108 {
109 struct nvkm_pci *pci = nvkm_pci(subdev);
110 struct pci_dev *pdev = pci->pdev;
111 int ret;
112
113 if (pci_is_pcie(pci->pdev)) {
114 ret = nvkm_pcie_oneinit(pci);
115 if (ret)
116 return ret;
117 }
118
119 ret = request_irq(pdev->irq, nvkm_pci_intr, IRQF_SHARED, "nvkm", pci);
120 if (ret)
121 return ret;
122
123 pci->irq = pdev->irq;
124 return 0;
125 }
126
127 static int
128 nvkm_pci_init(struct nvkm_subdev *subdev)
129 {
130 struct nvkm_pci *pci = nvkm_pci(subdev);
131 int ret;
132
133 if (pci->agp.bridge) {
134 ret = nvkm_agp_init(pci);
135 if (ret)
136 return ret;
137 } else if (pci_is_pcie(pci->pdev)) {
138 nvkm_pcie_init(pci);
139 }
140
141 if (pci->func->init)
142 pci->func->init(pci);
143
144
145
146
147 if (pci->msi)
148 pci->func->msi_rearm(pci);
149
150 return 0;
151 }
152
153 static void *
154 nvkm_pci_dtor(struct nvkm_subdev *subdev)
155 {
156 struct nvkm_pci *pci = nvkm_pci(subdev);
157
158 nvkm_agp_dtor(pci);
159
160 if (pci->irq >= 0) {
161
162
163
164 int irq = pci->irq;
165 pci->irq = -1;
166 free_irq(irq, pci);
167 }
168
169 if (pci->msi)
170 pci_disable_msi(pci->pdev);
171
172 return nvkm_pci(subdev);
173 }
174
175 static const struct nvkm_subdev_func
176 nvkm_pci_func = {
177 .dtor = nvkm_pci_dtor,
178 .oneinit = nvkm_pci_oneinit,
179 .preinit = nvkm_pci_preinit,
180 .init = nvkm_pci_init,
181 .fini = nvkm_pci_fini,
182 };
183
184 int
185 nvkm_pci_new_(const struct nvkm_pci_func *func, struct nvkm_device *device,
186 int index, struct nvkm_pci **ppci)
187 {
188 struct nvkm_pci *pci;
189
190 if (!(pci = *ppci = kzalloc(sizeof(**ppci), GFP_KERNEL)))
191 return -ENOMEM;
192 nvkm_subdev_ctor(&nvkm_pci_func, device, index, &pci->subdev);
193 pci->func = func;
194 pci->pdev = device->func->pci(device)->pdev;
195 pci->irq = -1;
196 pci->pcie.speed = -1;
197 pci->pcie.width = -1;
198
199 if (device->type == NVKM_DEVICE_AGP)
200 nvkm_agp_ctor(pci);
201
202 switch (pci->pdev->device & 0x0ff0) {
203 case 0x00f0:
204 case 0x02e0:
205
206 break;
207 default:
208 switch (device->chipset) {
209 case 0xaa:
210
211 break;
212 default:
213 pci->msi = true;
214 break;
215 }
216 }
217
218 #ifdef __BIG_ENDIAN
219 pci->msi = false;
220 #endif
221
222 pci->msi = nvkm_boolopt(device->cfgopt, "NvMSI", pci->msi);
223 if (pci->msi && func->msi_rearm) {
224 pci->msi = pci_enable_msi(pci->pdev) == 0;
225 if (pci->msi)
226 nvkm_debug(&pci->subdev, "MSI enabled\n");
227 } else {
228 pci->msi = false;
229 }
230
231 return 0;
232 }