drivers/gpu/drm/nouveau/nvkm/subdev/secboot/acr_r352.h

   1 /*
   2  * Copyright (c) 2016, NVIDIA CORPORATION. All rights reserved.
   3  *
   4  * Permission is hereby granted, free of charge, to any person obtaining a
   5  * copy of this software and associated documentation files (the "Software"),
   6  * to deal in the Software without restriction, including without limitation
   7  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   8  * and/or sell copies of the Software, and to permit persons to whom the
   9  * Software is furnished to do so, subject to the following conditions:
  10  *
  11  * The above copyright notice and this permission notice shall be included in
  12  * all copies or substantial portions of the Software.
  13  *
  14  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  15  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  16  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  17  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  18  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  19  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
  20  * DEALINGS IN THE SOFTWARE.
  21  */
  22 #ifndef __NVKM_SECBOOT_ACR_R352_H__
  23 #define __NVKM_SECBOOT_ACR_R352_H__
  24
  25 #include "acr.h"
  26 #include "ls_ucode.h"
  27 #include "hs_ucode.h"
  28
  29 struct ls_ucode_img;
  30
  31 #define ACR_R352_MAX_APPS 8
  32
  33 #define LSF_FLAG_LOAD_CODE_AT_0         1
  34 #define LSF_FLAG_DMACTL_REQ_CTX         4
  35 #define LSF_FLAG_FORCE_PRIV_LOAD        8
  36
  37 static inline u32
  38 hsf_load_header_app_off(const struct hsf_load_header *hdr, u32 app)
  39 {
  40         return hdr->apps[app];
  41 }
  42
  43 static inline u32
  44 hsf_load_header_app_size(const struct hsf_load_header *hdr, u32 app)
  45 {
  46         return hdr->apps[hdr->num_apps + app];
  47 }
  48
  49 /**
  50  * struct acr_r352_ls_func - manages a single LS firmware
  51  *
  52  * @load: load the external firmware into a ls_ucode_img
  53  * @generate_bl_desc: function called on a block of bl_desc_size to generate the
  54  *                    proper bootloader descriptor for this LS firmware
  55  * @bl_desc_size: size of the bootloader descriptor
  56  * @post_run: hook called right after the ACR is executed
  57  * @lhdr_flags: LS flags
  58  */
  59 struct acr_r352_ls_func {
  60         int (*load)(const struct nvkm_secboot *, struct ls_ucode_img *);
  61         void (*generate_bl_desc)(const struct nvkm_acr *,
  62                                  const struct ls_ucode_img *, u64, void *);
  63         u32 bl_desc_size;
  64         int (*post_run)(const struct nvkm_acr *, const struct nvkm_secboot *);
  65         u32 lhdr_flags;
  66 };
  67
  68 struct acr_r352;
  69
  70 /**
  71  * struct acr_r352_func - manages nuances between ACR versions
  72  *
  73  * @generate_hs_bl_desc: function called on a block of bl_desc_size to generate
  74  *                       the proper HS bootloader descriptor
  75  * @hs_bl_desc_size: size of the HS bootloader descriptor
  76  */
  77 struct acr_r352_func {
  78         void (*generate_hs_bl_desc)(const struct hsf_load_header *, void *,
  79                                     u64);
  80         void (*fixup_hs_desc)(struct acr_r352 *, struct nvkm_secboot *, void *);
  81         u32 hs_bl_desc_size;
  82         bool shadow_blob;
  83
  84         struct ls_ucode_img *(*ls_ucode_img_load)(const struct acr_r352 *,
  85                                                   const struct nvkm_secboot *,
  86                                                   enum nvkm_secboot_falcon);
  87         int (*ls_fill_headers)(struct acr_r352 *, struct list_head *);
  88         int (*ls_write_wpr)(struct acr_r352 *, struct list_head *,
  89                             struct nvkm_gpuobj *, u64);
  90
  91         const struct acr_r352_ls_func *ls_func[NVKM_SECBOOT_FALCON_END];
  92 };
  93
  94 /**
  95  * struct acr_r352 - ACR data for driver release 352 (and beyond)
  96  */
  97 struct acr_r352 {
  98         struct nvkm_acr base;
  99         const struct acr_r352_func *func;
 100
 101         /*
 102          * HS FW - lock WPR region (dGPU only) and load LS FWs
 103          * on Tegra the HS FW copies the LS blob into the fixed WPR instead
 104          */
 105         struct nvkm_gpuobj *load_blob;
 106         struct {
 107                 struct hsf_load_header load_bl_header;
 108                 u32 __load_apps[ACR_R352_MAX_APPS * 2];
 109         };
 110
 111         /* HS FW - unlock WPR region (dGPU only) */
 112         struct nvkm_gpuobj *unload_blob;
 113         struct {
 114                 struct hsf_load_header unload_bl_header;
 115                 u32 __unload_apps[ACR_R352_MAX_APPS * 2];
 116         };
 117
 118         /* HS bootloader */
 119         void *hsbl_blob;
 120
 121         /* HS bootloader for unload blob, if using a different falcon */
 122         void *hsbl_unload_blob;
 123
 124         /* LS FWs, to be loaded by the HS ACR */
 125         struct nvkm_gpuobj *ls_blob;
 126
 127         /* Firmware already loaded? */
 128         bool firmware_ok;
 129
 130         /* Falcons to lazy-bootstrap */
 131         u32 lazy_bootstrap;
 132
 133         /* To keep track of the state of all managed falcons */
 134         enum {
 135                 /* In non-secure state, no firmware loaded, no privileges*/
 136                 NON_SECURE = 0,
 137                 /* In low-secure mode and ready to be started */
 138                 RESET,
 139                 /* In low-secure mode and running */
 140                 RUNNING,
 141         } falcon_state[NVKM_SECBOOT_FALCON_END];
 142 };
 143 #define acr_r352(acr) container_of(acr, struct acr_r352, base)
 144
 145 struct nvkm_acr *acr_r352_new_(const struct acr_r352_func *,
 146                                enum nvkm_secboot_falcon, unsigned long);
 147
 148 struct ls_ucode_img *acr_r352_ls_ucode_img_load(const struct acr_r352 *,
 149                                                 const struct nvkm_secboot *,
 150                                                 enum nvkm_secboot_falcon);
 151 int acr_r352_ls_fill_headers(struct acr_r352 *, struct list_head *);
 152 int acr_r352_ls_write_wpr(struct acr_r352 *, struct list_head *,
 153                           struct nvkm_gpuobj *, u64);
 154
 155 void acr_r352_fixup_hs_desc(struct acr_r352 *, struct nvkm_secboot *, void *);
 156
 157 #endif