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17#include <linux/devcoredump.h>
18#include "etnaviv_cmdbuf.h"
19#include "etnaviv_dump.h"
20#include "etnaviv_gem.h"
21#include "etnaviv_gpu.h"
22#include "etnaviv_mmu.h"
23#include "state.xml.h"
24#include "state_hi.xml.h"
25
26struct core_dump_iterator {
27 void *start;
28 struct etnaviv_dump_object_header *hdr;
29 void *data;
30};
31
32static const unsigned short etnaviv_dump_registers[] = {
33 VIVS_HI_AXI_STATUS,
34 VIVS_HI_CLOCK_CONTROL,
35 VIVS_HI_IDLE_STATE,
36 VIVS_HI_AXI_CONFIG,
37 VIVS_HI_INTR_ENBL,
38 VIVS_HI_CHIP_IDENTITY,
39 VIVS_HI_CHIP_FEATURE,
40 VIVS_HI_CHIP_MODEL,
41 VIVS_HI_CHIP_REV,
42 VIVS_HI_CHIP_DATE,
43 VIVS_HI_CHIP_TIME,
44 VIVS_HI_CHIP_MINOR_FEATURE_0,
45 VIVS_HI_CACHE_CONTROL,
46 VIVS_HI_AXI_CONTROL,
47 VIVS_PM_POWER_CONTROLS,
48 VIVS_PM_MODULE_CONTROLS,
49 VIVS_PM_MODULE_STATUS,
50 VIVS_PM_PULSE_EATER,
51 VIVS_MC_MMU_FE_PAGE_TABLE,
52 VIVS_MC_MMU_TX_PAGE_TABLE,
53 VIVS_MC_MMU_PE_PAGE_TABLE,
54 VIVS_MC_MMU_PEZ_PAGE_TABLE,
55 VIVS_MC_MMU_RA_PAGE_TABLE,
56 VIVS_MC_DEBUG_MEMORY,
57 VIVS_MC_MEMORY_BASE_ADDR_RA,
58 VIVS_MC_MEMORY_BASE_ADDR_FE,
59 VIVS_MC_MEMORY_BASE_ADDR_TX,
60 VIVS_MC_MEMORY_BASE_ADDR_PEZ,
61 VIVS_MC_MEMORY_BASE_ADDR_PE,
62 VIVS_MC_MEMORY_TIMING_CONTROL,
63 VIVS_MC_BUS_CONFIG,
64 VIVS_FE_DMA_STATUS,
65 VIVS_FE_DMA_DEBUG_STATE,
66 VIVS_FE_DMA_ADDRESS,
67 VIVS_FE_DMA_LOW,
68 VIVS_FE_DMA_HIGH,
69 VIVS_FE_AUTO_FLUSH,
70};
71
72static void etnaviv_core_dump_header(struct core_dump_iterator *iter,
73 u32 type, void *data_end)
74{
75 struct etnaviv_dump_object_header *hdr = iter->hdr;
76
77 hdr->magic = cpu_to_le32(ETDUMP_MAGIC);
78 hdr->type = cpu_to_le32(type);
79 hdr->file_offset = cpu_to_le32(iter->data - iter->start);
80 hdr->file_size = cpu_to_le32(data_end - iter->data);
81
82 iter->hdr++;
83 iter->data += hdr->file_size;
84}
85
86static void etnaviv_core_dump_registers(struct core_dump_iterator *iter,
87 struct etnaviv_gpu *gpu)
88{
89 struct etnaviv_dump_registers *reg = iter->data;
90 unsigned int i;
91
92 for (i = 0; i < ARRAY_SIZE(etnaviv_dump_registers); i++, reg++) {
93 reg->reg = etnaviv_dump_registers[i];
94 reg->value = gpu_read(gpu, etnaviv_dump_registers[i]);
95 }
96
97 etnaviv_core_dump_header(iter, ETDUMP_BUF_REG, reg);
98}
99
100static void etnaviv_core_dump_mmu(struct core_dump_iterator *iter,
101 struct etnaviv_gpu *gpu, size_t mmu_size)
102{
103 etnaviv_iommu_dump(gpu->mmu, iter->data);
104
105 etnaviv_core_dump_header(iter, ETDUMP_BUF_MMU, iter->data + mmu_size);
106}
107
108static void etnaviv_core_dump_mem(struct core_dump_iterator *iter, u32 type,
109 void *ptr, size_t size, u64 iova)
110{
111 memcpy(iter->data, ptr, size);
112
113 iter->hdr->iova = cpu_to_le64(iova);
114
115 etnaviv_core_dump_header(iter, type, iter->data + size);
116}
117
118void etnaviv_core_dump(struct etnaviv_gpu *gpu)
119{
120 struct core_dump_iterator iter;
121 struct etnaviv_vram_mapping *vram;
122 struct etnaviv_gem_object *obj;
123 struct etnaviv_cmdbuf *cmd;
124 unsigned int n_obj, n_bomap_pages;
125 size_t file_size, mmu_size;
126 __le64 *bomap, *bomap_start;
127
128 mmu_size = etnaviv_iommu_dump_size(gpu->mmu);
129
130
131 n_obj = 4;
132 n_bomap_pages = 0;
133 file_size = ARRAY_SIZE(etnaviv_dump_registers) *
134 sizeof(struct etnaviv_dump_registers) +
135 mmu_size + gpu->buffer->size;
136
137
138 list_for_each_entry(cmd, &gpu->active_cmd_list, node) {
139 file_size += cmd->size;
140 n_obj++;
141 }
142
143
144 list_for_each_entry(vram, &gpu->mmu->mappings, mmu_node) {
145 if (!vram->use)
146 continue;
147
148 obj = vram->object;
149 file_size += obj->base.size;
150 n_bomap_pages += obj->base.size >> PAGE_SHIFT;
151 n_obj++;
152 }
153
154
155 if (n_bomap_pages) {
156 file_size += n_bomap_pages * sizeof(__le64);
157 n_obj++;
158 }
159
160
161 file_size += sizeof(*iter.hdr) * n_obj;
162
163
164 iter.start = __vmalloc(file_size, GFP_KERNEL | __GFP_NOWARN | __GFP_NORETRY,
165 PAGE_KERNEL);
166 if (!iter.start) {
167 dev_warn(gpu->dev, "failed to allocate devcoredump file\n");
168 return;
169 }
170
171
172 iter.hdr = iter.start;
173 iter.data = &iter.hdr[n_obj];
174
175 memset(iter.hdr, 0, iter.data - iter.start);
176
177 etnaviv_core_dump_registers(&iter, gpu);
178 etnaviv_core_dump_mmu(&iter, gpu, mmu_size);
179 etnaviv_core_dump_mem(&iter, ETDUMP_BUF_RING, gpu->buffer->vaddr,
180 gpu->buffer->size,
181 etnaviv_cmdbuf_get_va(gpu->buffer));
182
183 list_for_each_entry(cmd, &gpu->active_cmd_list, node)
184 etnaviv_core_dump_mem(&iter, ETDUMP_BUF_CMD, cmd->vaddr,
185 cmd->size, etnaviv_cmdbuf_get_va(cmd));
186
187
188 if (n_bomap_pages) {
189 bomap_start = bomap = iter.data;
190 memset(bomap, 0, sizeof(*bomap) * n_bomap_pages);
191 etnaviv_core_dump_header(&iter, ETDUMP_BUF_BOMAP,
192 bomap + n_bomap_pages);
193 } else {
194
195 bomap_start = bomap = NULL;
196 }
197
198 list_for_each_entry(vram, &gpu->mmu->mappings, mmu_node) {
199 struct page **pages;
200 void *vaddr;
201
202 if (vram->use == 0)
203 continue;
204
205 obj = vram->object;
206
207 mutex_lock(&obj->lock);
208 pages = etnaviv_gem_get_pages(obj);
209 mutex_unlock(&obj->lock);
210 if (pages) {
211 int j;
212
213 iter.hdr->data[0] = bomap - bomap_start;
214
215 for (j = 0; j < obj->base.size >> PAGE_SHIFT; j++)
216 *bomap++ = cpu_to_le64(page_to_phys(*pages++));
217 }
218
219 iter.hdr->iova = cpu_to_le64(vram->iova);
220
221 vaddr = etnaviv_gem_vmap(&obj->base);
222 if (vaddr)
223 memcpy(iter.data, vaddr, obj->base.size);
224
225 etnaviv_core_dump_header(&iter, ETDUMP_BUF_BO, iter.data +
226 obj->base.size);
227 }
228
229 etnaviv_core_dump_header(&iter, ETDUMP_BUF_END, iter.data);
230
231 dev_coredumpv(gpu->dev, iter.start, iter.data - iter.start, GFP_KERNEL);
232}
233
