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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 | // SPDX-License-Identifier: MIT /* * Copyright © 2022 Intel Corporation */ #include "xe_guc_hwconfig.h" #include <drm/drm_managed.h> #include "abi/guc_actions_abi.h" #include "xe_bo.h" #include "xe_device.h" #include "xe_gt.h" #include "xe_guc.h" #include "xe_map.h" static int send_get_hwconfig(struct xe_guc *guc, u32 ggtt_addr, u32 size) { u32 action[] = { XE_GUC_ACTION_GET_HWCONFIG, lower_32_bits(ggtt_addr), upper_32_bits(ggtt_addr), size, }; return xe_guc_mmio_send(guc, action, ARRAY_SIZE(action)); } static int guc_hwconfig_size(struct xe_guc *guc, u32 *size) { int ret = send_get_hwconfig(guc, 0, 0); if (ret < 0) return ret; *size = ret; return 0; } static int guc_hwconfig_copy(struct xe_guc *guc) { int ret = send_get_hwconfig(guc, xe_bo_ggtt_addr(guc->hwconfig.bo), guc->hwconfig.size); if (ret < 0) return ret; return 0; } int xe_guc_hwconfig_init(struct xe_guc *guc) { struct xe_device *xe = guc_to_xe(guc); struct xe_gt *gt = guc_to_gt(guc); struct xe_tile *tile = gt_to_tile(gt); struct xe_bo *bo; u32 size; int err; /* Initialization already done */ if (guc->hwconfig.bo) return 0; /* * All hwconfig the same across GTs so only GT0 needs to be configured */ if (gt->info.id != XE_GT0) return 0; /* ADL_P, DG2+ supports hwconfig table */ if (GRAPHICS_VERx100(xe) < 1255 && xe->info.platform != XE_ALDERLAKE_P) return 0; err = guc_hwconfig_size(guc, &size); if (err) return err; if (!size) return -EINVAL; bo = xe_managed_bo_create_pin_map(xe, tile, PAGE_ALIGN(size), XE_BO_CREATE_SYSTEM_BIT | XE_BO_CREATE_GGTT_BIT); if (IS_ERR(bo)) return PTR_ERR(bo); guc->hwconfig.bo = bo; guc->hwconfig.size = size; return guc_hwconfig_copy(guc); } u32 xe_guc_hwconfig_size(struct xe_guc *guc) { return !guc->hwconfig.bo ? 0 : guc->hwconfig.size; } void xe_guc_hwconfig_copy(struct xe_guc *guc, void *dst) { struct xe_device *xe = guc_to_xe(guc); XE_WARN_ON(!guc->hwconfig.bo); xe_map_memcpy_from(xe, dst, &guc->hwconfig.bo->vmap, 0, guc->hwconfig.size); } |