Merge tag 'for-linus-20140905' of git://git.infradead.org/linux-mtd
[firefly-linux-kernel-4.4.55.git] / drivers / gpu / drm / radeon / radeon_ucode.c
1 /*
2  * Copyright 2014 Advanced Micro Devices, Inc.
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 COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
18  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
19  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
20  * OTHER DEALINGS IN THE SOFTWARE.
21  *
22  */
23
24 #include <linux/firmware.h>
25 #include <linux/slab.h>
26 #include <linux/module.h>
27 #include <drm/drmP.h>
28 #include "radeon.h"
29 #include "radeon_ucode.h"
30
31 static void radeon_ucode_print_common_hdr(const struct common_firmware_header *hdr)
32 {
33         DRM_DEBUG("size_bytes: %u\n", le32_to_cpu(hdr->size_bytes));
34         DRM_DEBUG("header_size_bytes: %u\n", le32_to_cpu(hdr->header_size_bytes));
35         DRM_DEBUG("header_version_major: %u\n", le16_to_cpu(hdr->header_version_major));
36         DRM_DEBUG("header_version_minor: %u\n", le16_to_cpu(hdr->header_version_minor));
37         DRM_DEBUG("ip_version_major: %u\n", le16_to_cpu(hdr->ip_version_major));
38         DRM_DEBUG("ip_version_minor: %u\n", le16_to_cpu(hdr->ip_version_minor));
39         DRM_DEBUG("ucode_version: 0x%08x\n", le32_to_cpu(hdr->ucode_version));
40         DRM_DEBUG("ucode_size_bytes: %u\n", le32_to_cpu(hdr->ucode_size_bytes));
41         DRM_DEBUG("ucode_array_offset_bytes: %u\n",
42                   le32_to_cpu(hdr->ucode_array_offset_bytes));
43         DRM_DEBUG("crc32: 0x%08x\n", le32_to_cpu(hdr->crc32));
44 }
45
46 void radeon_ucode_print_mc_hdr(const struct common_firmware_header *hdr)
47 {
48         uint16_t version_major = le16_to_cpu(hdr->header_version_major);
49         uint16_t version_minor = le16_to_cpu(hdr->header_version_minor);
50
51         DRM_DEBUG("MC\n");
52         radeon_ucode_print_common_hdr(hdr);
53
54         if (version_major == 1) {
55                 const struct mc_firmware_header_v1_0 *mc_hdr =
56                         container_of(hdr, struct mc_firmware_header_v1_0, header);
57
58                 DRM_DEBUG("io_debug_size_bytes: %u\n",
59                           le32_to_cpu(mc_hdr->io_debug_size_bytes));
60                 DRM_DEBUG("io_debug_array_offset_bytes: %u\n",
61                           le32_to_cpu(mc_hdr->io_debug_array_offset_bytes));
62         } else {
63                 DRM_ERROR("Unknown MC ucode version: %u.%u\n", version_major, version_minor);
64         }
65 }
66
67 void radeon_ucode_print_smc_hdr(const struct common_firmware_header *hdr)
68 {
69         uint16_t version_major = le16_to_cpu(hdr->header_version_major);
70         uint16_t version_minor = le16_to_cpu(hdr->header_version_minor);
71
72         DRM_DEBUG("SMC\n");
73         radeon_ucode_print_common_hdr(hdr);
74
75         if (version_major == 1) {
76                 const struct smc_firmware_header_v1_0 *smc_hdr =
77                         container_of(hdr, struct smc_firmware_header_v1_0, header);
78
79                 DRM_DEBUG("ucode_start_addr: %u\n", le32_to_cpu(smc_hdr->ucode_start_addr));
80         } else {
81                 DRM_ERROR("Unknown SMC ucode version: %u.%u\n", version_major, version_minor);
82         }
83 }
84
85 void radeon_ucode_print_gfx_hdr(const struct common_firmware_header *hdr)
86 {
87         uint16_t version_major = le16_to_cpu(hdr->header_version_major);
88         uint16_t version_minor = le16_to_cpu(hdr->header_version_minor);
89
90         DRM_DEBUG("GFX\n");
91         radeon_ucode_print_common_hdr(hdr);
92
93         if (version_major == 1) {
94                 const struct gfx_firmware_header_v1_0 *gfx_hdr =
95                         container_of(hdr, struct gfx_firmware_header_v1_0, header);
96
97                 DRM_DEBUG("ucode_feature_version: %u\n",
98                           le32_to_cpu(gfx_hdr->ucode_feature_version));
99                 DRM_DEBUG("jt_offset: %u\n", le32_to_cpu(gfx_hdr->jt_offset));
100                 DRM_DEBUG("jt_size: %u\n", le32_to_cpu(gfx_hdr->jt_size));
101         } else {
102                 DRM_ERROR("Unknown GFX ucode version: %u.%u\n", version_major, version_minor);
103         }
104 }
105
106 void radeon_ucode_print_rlc_hdr(const struct common_firmware_header *hdr)
107 {
108         uint16_t version_major = le16_to_cpu(hdr->header_version_major);
109         uint16_t version_minor = le16_to_cpu(hdr->header_version_minor);
110
111         DRM_DEBUG("RLC\n");
112         radeon_ucode_print_common_hdr(hdr);
113
114         if (version_major == 1) {
115                 const struct rlc_firmware_header_v1_0 *rlc_hdr =
116                         container_of(hdr, struct rlc_firmware_header_v1_0, header);
117
118                 DRM_DEBUG("ucode_feature_version: %u\n",
119                           le32_to_cpu(rlc_hdr->ucode_feature_version));
120                 DRM_DEBUG("save_and_restore_offset: %u\n",
121                           le32_to_cpu(rlc_hdr->save_and_restore_offset));
122                 DRM_DEBUG("clear_state_descriptor_offset: %u\n",
123                           le32_to_cpu(rlc_hdr->clear_state_descriptor_offset));
124                 DRM_DEBUG("avail_scratch_ram_locations: %u\n",
125                           le32_to_cpu(rlc_hdr->avail_scratch_ram_locations));
126                 DRM_DEBUG("master_pkt_description_offset: %u\n",
127                           le32_to_cpu(rlc_hdr->master_pkt_description_offset));
128         } else {
129                 DRM_ERROR("Unknown RLC ucode version: %u.%u\n", version_major, version_minor);
130         }
131 }
132
133 void radeon_ucode_print_sdma_hdr(const struct common_firmware_header *hdr)
134 {
135         uint16_t version_major = le16_to_cpu(hdr->header_version_major);
136         uint16_t version_minor = le16_to_cpu(hdr->header_version_minor);
137
138         DRM_DEBUG("SDMA\n");
139         radeon_ucode_print_common_hdr(hdr);
140
141         if (version_major == 1) {
142                 const struct sdma_firmware_header_v1_0 *sdma_hdr =
143                         container_of(hdr, struct sdma_firmware_header_v1_0, header);
144
145                 DRM_DEBUG("ucode_feature_version: %u\n",
146                           le32_to_cpu(sdma_hdr->ucode_feature_version));
147                 DRM_DEBUG("ucode_change_version: %u\n",
148                           le32_to_cpu(sdma_hdr->ucode_change_version));
149                 DRM_DEBUG("jt_offset: %u\n", le32_to_cpu(sdma_hdr->jt_offset));
150                 DRM_DEBUG("jt_size: %u\n", le32_to_cpu(sdma_hdr->jt_size));
151         } else {
152                 DRM_ERROR("Unknown SDMA ucode version: %u.%u\n",
153                           version_major, version_minor);
154         }
155 }
156
157 int radeon_ucode_validate(const struct firmware *fw)
158 {
159         const struct common_firmware_header *hdr =
160                 (const struct common_firmware_header *)fw->data;
161
162         if (fw->size == le32_to_cpu(hdr->size_bytes))
163                 return 0;
164
165         return -EINVAL;
166 }
167