1a8c21a54SThe etnaviv authors /* 2a8c21a54SThe etnaviv authors * Copyright (C) 2015 Etnaviv Project 3a8c21a54SThe etnaviv authors * 4a8c21a54SThe etnaviv authors * This program is free software; you can redistribute it and/or modify it 5a8c21a54SThe etnaviv authors * under the terms of the GNU General Public License version 2 as published by 6a8c21a54SThe etnaviv authors * the Free Software Foundation. 7a8c21a54SThe etnaviv authors * 8a8c21a54SThe etnaviv authors * This program is distributed in the hope that it will be useful, but WITHOUT 9a8c21a54SThe etnaviv authors * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 10a8c21a54SThe etnaviv authors * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for 11a8c21a54SThe etnaviv authors * more details. 12a8c21a54SThe etnaviv authors * 13a8c21a54SThe etnaviv authors * You should have received a copy of the GNU General Public License along with 14a8c21a54SThe etnaviv authors * this program. If not, see <http://www.gnu.org/licenses/>. 15a8c21a54SThe etnaviv authors */ 16a8c21a54SThe etnaviv authors 17a8c21a54SThe etnaviv authors #include <linux/devcoredump.h> 18a8c21a54SThe etnaviv authors #include "etnaviv_dump.h" 19a8c21a54SThe etnaviv authors #include "etnaviv_gem.h" 20a8c21a54SThe etnaviv authors #include "etnaviv_gpu.h" 21a8c21a54SThe etnaviv authors #include "etnaviv_mmu.h" 22a8c21a54SThe etnaviv authors #include "state.xml.h" 23a8c21a54SThe etnaviv authors #include "state_hi.xml.h" 24a8c21a54SThe etnaviv authors 25a8c21a54SThe etnaviv authors struct core_dump_iterator { 26a8c21a54SThe etnaviv authors void *start; 27a8c21a54SThe etnaviv authors struct etnaviv_dump_object_header *hdr; 28a8c21a54SThe etnaviv authors void *data; 29a8c21a54SThe etnaviv authors }; 30a8c21a54SThe etnaviv authors 31a8c21a54SThe etnaviv authors static const unsigned short etnaviv_dump_registers[] = { 32a8c21a54SThe etnaviv authors VIVS_HI_AXI_STATUS, 33a8c21a54SThe etnaviv authors VIVS_HI_CLOCK_CONTROL, 34a8c21a54SThe etnaviv authors VIVS_HI_IDLE_STATE, 35a8c21a54SThe etnaviv authors VIVS_HI_AXI_CONFIG, 36a8c21a54SThe etnaviv authors VIVS_HI_INTR_ENBL, 37a8c21a54SThe etnaviv authors VIVS_HI_CHIP_IDENTITY, 38a8c21a54SThe etnaviv authors VIVS_HI_CHIP_FEATURE, 39a8c21a54SThe etnaviv authors VIVS_HI_CHIP_MODEL, 40a8c21a54SThe etnaviv authors VIVS_HI_CHIP_REV, 41a8c21a54SThe etnaviv authors VIVS_HI_CHIP_DATE, 42a8c21a54SThe etnaviv authors VIVS_HI_CHIP_TIME, 43a8c21a54SThe etnaviv authors VIVS_HI_CHIP_MINOR_FEATURE_0, 44a8c21a54SThe etnaviv authors VIVS_HI_CACHE_CONTROL, 45a8c21a54SThe etnaviv authors VIVS_HI_AXI_CONTROL, 46a8c21a54SThe etnaviv authors VIVS_PM_POWER_CONTROLS, 47a8c21a54SThe etnaviv authors VIVS_PM_MODULE_CONTROLS, 48a8c21a54SThe etnaviv authors VIVS_PM_MODULE_STATUS, 49a8c21a54SThe etnaviv authors VIVS_PM_PULSE_EATER, 50a8c21a54SThe etnaviv authors VIVS_MC_MMU_FE_PAGE_TABLE, 51a8c21a54SThe etnaviv authors VIVS_MC_MMU_TX_PAGE_TABLE, 52a8c21a54SThe etnaviv authors VIVS_MC_MMU_PE_PAGE_TABLE, 53a8c21a54SThe etnaviv authors VIVS_MC_MMU_PEZ_PAGE_TABLE, 54a8c21a54SThe etnaviv authors VIVS_MC_MMU_RA_PAGE_TABLE, 55a8c21a54SThe etnaviv authors VIVS_MC_DEBUG_MEMORY, 56a8c21a54SThe etnaviv authors VIVS_MC_MEMORY_BASE_ADDR_RA, 57a8c21a54SThe etnaviv authors VIVS_MC_MEMORY_BASE_ADDR_FE, 58a8c21a54SThe etnaviv authors VIVS_MC_MEMORY_BASE_ADDR_TX, 59a8c21a54SThe etnaviv authors VIVS_MC_MEMORY_BASE_ADDR_PEZ, 60a8c21a54SThe etnaviv authors VIVS_MC_MEMORY_BASE_ADDR_PE, 61a8c21a54SThe etnaviv authors VIVS_MC_MEMORY_TIMING_CONTROL, 62a8c21a54SThe etnaviv authors VIVS_MC_BUS_CONFIG, 63a8c21a54SThe etnaviv authors VIVS_FE_DMA_STATUS, 64a8c21a54SThe etnaviv authors VIVS_FE_DMA_DEBUG_STATE, 65a8c21a54SThe etnaviv authors VIVS_FE_DMA_ADDRESS, 66a8c21a54SThe etnaviv authors VIVS_FE_DMA_LOW, 67a8c21a54SThe etnaviv authors VIVS_FE_DMA_HIGH, 68a8c21a54SThe etnaviv authors VIVS_FE_AUTO_FLUSH, 69a8c21a54SThe etnaviv authors }; 70a8c21a54SThe etnaviv authors 71a8c21a54SThe etnaviv authors static void etnaviv_core_dump_header(struct core_dump_iterator *iter, 72a8c21a54SThe etnaviv authors u32 type, void *data_end) 73a8c21a54SThe etnaviv authors { 74a8c21a54SThe etnaviv authors struct etnaviv_dump_object_header *hdr = iter->hdr; 75a8c21a54SThe etnaviv authors 76a8c21a54SThe etnaviv authors hdr->magic = cpu_to_le32(ETDUMP_MAGIC); 77a8c21a54SThe etnaviv authors hdr->type = cpu_to_le32(type); 78a8c21a54SThe etnaviv authors hdr->file_offset = cpu_to_le32(iter->data - iter->start); 79a8c21a54SThe etnaviv authors hdr->file_size = cpu_to_le32(data_end - iter->data); 80a8c21a54SThe etnaviv authors 81a8c21a54SThe etnaviv authors iter->hdr++; 82a8c21a54SThe etnaviv authors iter->data += hdr->file_size; 83a8c21a54SThe etnaviv authors } 84a8c21a54SThe etnaviv authors 85a8c21a54SThe etnaviv authors static void etnaviv_core_dump_registers(struct core_dump_iterator *iter, 86a8c21a54SThe etnaviv authors struct etnaviv_gpu *gpu) 87a8c21a54SThe etnaviv authors { 88a8c21a54SThe etnaviv authors struct etnaviv_dump_registers *reg = iter->data; 89a8c21a54SThe etnaviv authors unsigned int i; 90a8c21a54SThe etnaviv authors 91a8c21a54SThe etnaviv authors for (i = 0; i < ARRAY_SIZE(etnaviv_dump_registers); i++, reg++) { 92a8c21a54SThe etnaviv authors reg->reg = etnaviv_dump_registers[i]; 93a8c21a54SThe etnaviv authors reg->value = gpu_read(gpu, etnaviv_dump_registers[i]); 94a8c21a54SThe etnaviv authors } 95a8c21a54SThe etnaviv authors 96a8c21a54SThe etnaviv authors etnaviv_core_dump_header(iter, ETDUMP_BUF_REG, reg); 97a8c21a54SThe etnaviv authors } 98a8c21a54SThe etnaviv authors 99a8c21a54SThe etnaviv authors static void etnaviv_core_dump_mmu(struct core_dump_iterator *iter, 100a8c21a54SThe etnaviv authors struct etnaviv_gpu *gpu, size_t mmu_size) 101a8c21a54SThe etnaviv authors { 102a8c21a54SThe etnaviv authors etnaviv_iommu_dump(gpu->mmu, iter->data); 103a8c21a54SThe etnaviv authors 104a8c21a54SThe etnaviv authors etnaviv_core_dump_header(iter, ETDUMP_BUF_MMU, iter->data + mmu_size); 105a8c21a54SThe etnaviv authors } 106a8c21a54SThe etnaviv authors 107a8c21a54SThe etnaviv authors static void etnaviv_core_dump_mem(struct core_dump_iterator *iter, u32 type, 108a8c21a54SThe etnaviv authors void *ptr, size_t size, u64 iova) 109a8c21a54SThe etnaviv authors { 110a8c21a54SThe etnaviv authors memcpy(iter->data, ptr, size); 111a8c21a54SThe etnaviv authors 112a8c21a54SThe etnaviv authors iter->hdr->iova = cpu_to_le64(iova); 113a8c21a54SThe etnaviv authors 114a8c21a54SThe etnaviv authors etnaviv_core_dump_header(iter, type, iter->data + size); 115a8c21a54SThe etnaviv authors } 116a8c21a54SThe etnaviv authors 117a8c21a54SThe etnaviv authors void etnaviv_core_dump(struct etnaviv_gpu *gpu) 118a8c21a54SThe etnaviv authors { 119a8c21a54SThe etnaviv authors struct core_dump_iterator iter; 120a8c21a54SThe etnaviv authors struct etnaviv_vram_mapping *vram; 121a8c21a54SThe etnaviv authors struct etnaviv_gem_object *obj; 122a8c21a54SThe etnaviv authors struct etnaviv_cmdbuf *cmd; 123a8c21a54SThe etnaviv authors unsigned int n_obj, n_bomap_pages; 124a8c21a54SThe etnaviv authors size_t file_size, mmu_size; 125a8c21a54SThe etnaviv authors __le64 *bomap, *bomap_start; 126a8c21a54SThe etnaviv authors 127a8c21a54SThe etnaviv authors mmu_size = etnaviv_iommu_dump_size(gpu->mmu); 128a8c21a54SThe etnaviv authors 129a8c21a54SThe etnaviv authors /* We always dump registers, mmu, ring and end marker */ 130a8c21a54SThe etnaviv authors n_obj = 4; 131a8c21a54SThe etnaviv authors n_bomap_pages = 0; 132a8c21a54SThe etnaviv authors file_size = ARRAY_SIZE(etnaviv_dump_registers) * 133a8c21a54SThe etnaviv authors sizeof(struct etnaviv_dump_registers) + 134a8c21a54SThe etnaviv authors mmu_size + gpu->buffer->size; 135a8c21a54SThe etnaviv authors 136a8c21a54SThe etnaviv authors /* Add in the active command buffers */ 137a8c21a54SThe etnaviv authors list_for_each_entry(cmd, &gpu->active_cmd_list, node) { 138a8c21a54SThe etnaviv authors file_size += cmd->size; 139a8c21a54SThe etnaviv authors n_obj++; 140a8c21a54SThe etnaviv authors } 141a8c21a54SThe etnaviv authors 142a8c21a54SThe etnaviv authors /* Add in the active buffer objects */ 143a8c21a54SThe etnaviv authors list_for_each_entry(vram, &gpu->mmu->mappings, mmu_node) { 144a8c21a54SThe etnaviv authors if (!vram->use) 145a8c21a54SThe etnaviv authors continue; 146a8c21a54SThe etnaviv authors 147a8c21a54SThe etnaviv authors obj = vram->object; 148a8c21a54SThe etnaviv authors file_size += obj->base.size; 149a8c21a54SThe etnaviv authors n_bomap_pages += obj->base.size >> PAGE_SHIFT; 150a8c21a54SThe etnaviv authors n_obj++; 151a8c21a54SThe etnaviv authors } 152a8c21a54SThe etnaviv authors 153a8c21a54SThe etnaviv authors /* If we have any buffer objects, add a bomap object */ 154a8c21a54SThe etnaviv authors if (n_bomap_pages) { 155a8c21a54SThe etnaviv authors file_size += n_bomap_pages * sizeof(__le64); 156a8c21a54SThe etnaviv authors n_obj++; 157a8c21a54SThe etnaviv authors } 158a8c21a54SThe etnaviv authors 159a8c21a54SThe etnaviv authors /* Add the size of the headers */ 160a8c21a54SThe etnaviv authors file_size += sizeof(*iter.hdr) * n_obj; 161a8c21a54SThe etnaviv authors 162a8c21a54SThe etnaviv authors /* Allocate the file in vmalloc memory, it's likely to be big */ 163a8c21a54SThe etnaviv authors iter.start = vmalloc(file_size); 164a8c21a54SThe etnaviv authors if (!iter.start) { 165a8c21a54SThe etnaviv authors dev_warn(gpu->dev, "failed to allocate devcoredump file\n"); 166a8c21a54SThe etnaviv authors return; 167a8c21a54SThe etnaviv authors } 168a8c21a54SThe etnaviv authors 169a8c21a54SThe etnaviv authors /* Point the data member after the headers */ 170a8c21a54SThe etnaviv authors iter.hdr = iter.start; 171a8c21a54SThe etnaviv authors iter.data = &iter.hdr[n_obj]; 172a8c21a54SThe etnaviv authors 173a8c21a54SThe etnaviv authors memset(iter.hdr, 0, iter.data - iter.start); 174a8c21a54SThe etnaviv authors 175a8c21a54SThe etnaviv authors etnaviv_core_dump_registers(&iter, gpu); 176a8c21a54SThe etnaviv authors etnaviv_core_dump_mmu(&iter, gpu, mmu_size); 177a8c21a54SThe etnaviv authors etnaviv_core_dump_mem(&iter, ETDUMP_BUF_RING, gpu->buffer->vaddr, 178a8c21a54SThe etnaviv authors gpu->buffer->size, gpu->buffer->paddr); 179a8c21a54SThe etnaviv authors 180a8c21a54SThe etnaviv authors list_for_each_entry(cmd, &gpu->active_cmd_list, node) 181a8c21a54SThe etnaviv authors etnaviv_core_dump_mem(&iter, ETDUMP_BUF_CMD, cmd->vaddr, 182a8c21a54SThe etnaviv authors cmd->size, cmd->paddr); 183a8c21a54SThe etnaviv authors 184a8c21a54SThe etnaviv authors /* Reserve space for the bomap */ 185a8c21a54SThe etnaviv authors if (n_bomap_pages) { 186a8c21a54SThe etnaviv authors bomap_start = bomap = iter.data; 187a8c21a54SThe etnaviv authors memset(bomap, 0, sizeof(*bomap) * n_bomap_pages); 188a8c21a54SThe etnaviv authors etnaviv_core_dump_header(&iter, ETDUMP_BUF_BOMAP, 189a8c21a54SThe etnaviv authors bomap + n_bomap_pages); 190a8c21a54SThe etnaviv authors } else { 191a8c21a54SThe etnaviv authors /* Silence warning */ 192a8c21a54SThe etnaviv authors bomap_start = bomap = NULL; 193a8c21a54SThe etnaviv authors } 194a8c21a54SThe etnaviv authors 195a8c21a54SThe etnaviv authors list_for_each_entry(vram, &gpu->mmu->mappings, mmu_node) { 196a8c21a54SThe etnaviv authors struct page **pages; 197a8c21a54SThe etnaviv authors void *vaddr; 198a8c21a54SThe etnaviv authors 199a8c21a54SThe etnaviv authors if (vram->use == 0) 200a8c21a54SThe etnaviv authors continue; 201a8c21a54SThe etnaviv authors 202a8c21a54SThe etnaviv authors obj = vram->object; 203a8c21a54SThe etnaviv authors 204*339073efSLucas Stach mutex_lock(&obj->lock); 205a8c21a54SThe etnaviv authors pages = etnaviv_gem_get_pages(obj); 206*339073efSLucas Stach mutex_unlock(&obj->lock); 207a8c21a54SThe etnaviv authors if (pages) { 208a8c21a54SThe etnaviv authors int j; 209a8c21a54SThe etnaviv authors 210a8c21a54SThe etnaviv authors iter.hdr->data[0] = bomap - bomap_start; 211a8c21a54SThe etnaviv authors 212a8c21a54SThe etnaviv authors for (j = 0; j < obj->base.size >> PAGE_SHIFT; j++) 213a8c21a54SThe etnaviv authors *bomap++ = cpu_to_le64(page_to_phys(*pages++)); 214a8c21a54SThe etnaviv authors } 215a8c21a54SThe etnaviv authors 216a8c21a54SThe etnaviv authors iter.hdr->iova = cpu_to_le64(vram->iova); 217a8c21a54SThe etnaviv authors 218a8c21a54SThe etnaviv authors vaddr = etnaviv_gem_vaddr(&obj->base); 219a8c21a54SThe etnaviv authors if (vaddr && !IS_ERR(vaddr)) 220a8c21a54SThe etnaviv authors memcpy(iter.data, vaddr, obj->base.size); 221a8c21a54SThe etnaviv authors 222a8c21a54SThe etnaviv authors etnaviv_core_dump_header(&iter, ETDUMP_BUF_BO, iter.data + 223a8c21a54SThe etnaviv authors obj->base.size); 224a8c21a54SThe etnaviv authors } 225a8c21a54SThe etnaviv authors 226a8c21a54SThe etnaviv authors etnaviv_core_dump_header(&iter, ETDUMP_BUF_END, iter.data); 227a8c21a54SThe etnaviv authors 228a8c21a54SThe etnaviv authors dev_coredumpv(gpu->dev, iter.start, iter.data - iter.start, GFP_KERNEL); 229a8c21a54SThe etnaviv authors } 230