1 /*
2 * Copyright 2016 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 * Author: Huang Rui
23 *
24 */
25
26 #include <linux/firmware.h>
27 #include <linux/module.h>
28 #include <linux/pci.h>
29
30 #include "amdgpu.h"
31 #include "amdgpu_psp.h"
32 #include "amdgpu_ucode.h"
33 #include "soc15_common.h"
34 #include "psp_v10_0.h"
35
36 #include "mp/mp_10_0_offset.h"
37 #include "gc/gc_9_1_offset.h"
38 #include "sdma0/sdma0_4_1_offset.h"
39
40 MODULE_FIRMWARE("amdgpu/raven_asd.bin");
41 MODULE_FIRMWARE("amdgpu/picasso_asd.bin");
42 MODULE_FIRMWARE("amdgpu/raven2_asd.bin");
43 MODULE_FIRMWARE("amdgpu/picasso_ta.bin");
44 MODULE_FIRMWARE("amdgpu/raven2_ta.bin");
45 MODULE_FIRMWARE("amdgpu/raven_ta.bin");
46
psp_v10_0_init_microcode(struct psp_context * psp)47 static int psp_v10_0_init_microcode(struct psp_context *psp)
48 {
49 struct amdgpu_device *adev = psp->adev;
50 const char *chip_name;
51 char fw_name[30];
52 int err = 0;
53 const struct ta_firmware_header_v1_0 *ta_hdr;
54 DRM_DEBUG("\n");
55
56 switch (adev->asic_type) {
57 case CHIP_RAVEN:
58 if (adev->apu_flags & AMD_APU_IS_RAVEN2)
59 chip_name = "raven2";
60 else if (adev->apu_flags & AMD_APU_IS_PICASSO)
61 chip_name = "picasso";
62 else
63 chip_name = "raven";
64 break;
65 default: BUG();
66 }
67
68 err = psp_init_asd_microcode(psp, chip_name);
69 if (err)
70 goto out;
71
72 snprintf(fw_name, sizeof(fw_name), "amdgpu/%s_ta.bin", chip_name);
73 err = request_firmware(&adev->psp.ta_fw, fw_name, adev->dev);
74 if (err) {
75 release_firmware(adev->psp.ta_fw);
76 adev->psp.ta_fw = NULL;
77 dev_info(adev->dev,
78 "psp v10.0: Failed to load firmware \"%s\"\n",
79 fw_name);
80 } else {
81 err = amdgpu_ucode_validate(adev->psp.ta_fw);
82 if (err)
83 goto out2;
84
85 ta_hdr = (const struct ta_firmware_header_v1_0 *)
86 adev->psp.ta_fw->data;
87 adev->psp.hdcp_context.context.bin_desc.fw_version =
88 le32_to_cpu(ta_hdr->hdcp.fw_version);
89 adev->psp.hdcp_context.context.bin_desc.size_bytes =
90 le32_to_cpu(ta_hdr->hdcp.size_bytes);
91 adev->psp.hdcp_context.context.bin_desc.start_addr =
92 (uint8_t *)ta_hdr +
93 le32_to_cpu(ta_hdr->header.ucode_array_offset_bytes);
94
95 adev->psp.dtm_context.context.bin_desc.fw_version =
96 le32_to_cpu(ta_hdr->dtm.fw_version);
97 adev->psp.dtm_context.context.bin_desc.size_bytes =
98 le32_to_cpu(ta_hdr->dtm.size_bytes);
99 adev->psp.dtm_context.context.bin_desc.start_addr =
100 (uint8_t *)adev->psp.hdcp_context.context.bin_desc.start_addr +
101 le32_to_cpu(ta_hdr->dtm.offset_bytes);
102
103 adev->psp.securedisplay_context.context.bin_desc.fw_version =
104 le32_to_cpu(ta_hdr->securedisplay.fw_version);
105 adev->psp.securedisplay_context.context.bin_desc.size_bytes =
106 le32_to_cpu(ta_hdr->securedisplay.size_bytes);
107 adev->psp.securedisplay_context.context.bin_desc.start_addr =
108 (uint8_t *)adev->psp.hdcp_context.context.bin_desc.start_addr +
109 le32_to_cpu(ta_hdr->securedisplay.offset_bytes);
110
111 adev->psp.ta_fw_version = le32_to_cpu(ta_hdr->header.ucode_version);
112 }
113
114 return 0;
115
116 out2:
117 release_firmware(adev->psp.ta_fw);
118 adev->psp.ta_fw = NULL;
119 out:
120 if (err) {
121 dev_err(adev->dev,
122 "psp v10.0: Failed to load firmware \"%s\"\n",
123 fw_name);
124 }
125
126 return err;
127 }
128
psp_v10_0_ring_init(struct psp_context * psp,enum psp_ring_type ring_type)129 static int psp_v10_0_ring_init(struct psp_context *psp,
130 enum psp_ring_type ring_type)
131 {
132 int ret = 0;
133 struct psp_ring *ring;
134 struct amdgpu_device *adev = psp->adev;
135
136 ring = &psp->km_ring;
137
138 ring->ring_type = ring_type;
139
140 /* allocate 4k Page of Local Frame Buffer memory for ring */
141 ring->ring_size = 0x1000;
142 ret = amdgpu_bo_create_kernel(adev, ring->ring_size, PAGE_SIZE,
143 AMDGPU_GEM_DOMAIN_VRAM,
144 &adev->firmware.rbuf,
145 &ring->ring_mem_mc_addr,
146 (void **)&ring->ring_mem);
147 if (ret) {
148 ring->ring_size = 0;
149 return ret;
150 }
151
152 return 0;
153 }
154
psp_v10_0_ring_create(struct psp_context * psp,enum psp_ring_type ring_type)155 static int psp_v10_0_ring_create(struct psp_context *psp,
156 enum psp_ring_type ring_type)
157 {
158 int ret = 0;
159 unsigned int psp_ring_reg = 0;
160 struct psp_ring *ring = &psp->km_ring;
161 struct amdgpu_device *adev = psp->adev;
162
163 /* Write low address of the ring to C2PMSG_69 */
164 psp_ring_reg = lower_32_bits(ring->ring_mem_mc_addr);
165 WREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_69, psp_ring_reg);
166 /* Write high address of the ring to C2PMSG_70 */
167 psp_ring_reg = upper_32_bits(ring->ring_mem_mc_addr);
168 WREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_70, psp_ring_reg);
169 /* Write size of ring to C2PMSG_71 */
170 psp_ring_reg = ring->ring_size;
171 WREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_71, psp_ring_reg);
172 /* Write the ring initialization command to C2PMSG_64 */
173 psp_ring_reg = ring_type;
174 psp_ring_reg = psp_ring_reg << 16;
175 WREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_64, psp_ring_reg);
176
177 /* There might be handshake issue with hardware which needs delay */
178 mdelay(20);
179
180 /* Wait for response flag (bit 31) in C2PMSG_64 */
181 ret = psp_wait_for(psp, SOC15_REG_OFFSET(MP0, 0, mmMP0_SMN_C2PMSG_64),
182 0x80000000, 0x8000FFFF, false);
183
184 return ret;
185 }
186
psp_v10_0_ring_stop(struct psp_context * psp,enum psp_ring_type ring_type)187 static int psp_v10_0_ring_stop(struct psp_context *psp,
188 enum psp_ring_type ring_type)
189 {
190 int ret = 0;
191 unsigned int psp_ring_reg = 0;
192 struct amdgpu_device *adev = psp->adev;
193
194 /* Write the ring destroy command to C2PMSG_64 */
195 psp_ring_reg = 3 << 16;
196 WREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_64, psp_ring_reg);
197
198 /* There might be handshake issue with hardware which needs delay */
199 mdelay(20);
200
201 /* Wait for response flag (bit 31) in C2PMSG_64 */
202 ret = psp_wait_for(psp, SOC15_REG_OFFSET(MP0, 0, mmMP0_SMN_C2PMSG_64),
203 0x80000000, 0x80000000, false);
204
205 return ret;
206 }
207
psp_v10_0_ring_destroy(struct psp_context * psp,enum psp_ring_type ring_type)208 static int psp_v10_0_ring_destroy(struct psp_context *psp,
209 enum psp_ring_type ring_type)
210 {
211 int ret = 0;
212 struct psp_ring *ring = &psp->km_ring;
213 struct amdgpu_device *adev = psp->adev;
214
215 ret = psp_v10_0_ring_stop(psp, ring_type);
216 if (ret)
217 DRM_ERROR("Fail to stop psp ring\n");
218
219 amdgpu_bo_free_kernel(&adev->firmware.rbuf,
220 &ring->ring_mem_mc_addr,
221 (void **)&ring->ring_mem);
222
223 return ret;
224 }
225
psp_v10_0_mode1_reset(struct psp_context * psp)226 static int psp_v10_0_mode1_reset(struct psp_context *psp)
227 {
228 DRM_INFO("psp mode 1 reset not supported now! \n");
229 return -EINVAL;
230 }
231
psp_v10_0_ring_get_wptr(struct psp_context * psp)232 static uint32_t psp_v10_0_ring_get_wptr(struct psp_context *psp)
233 {
234 struct amdgpu_device *adev = psp->adev;
235
236 return RREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_67);
237 }
238
psp_v10_0_ring_set_wptr(struct psp_context * psp,uint32_t value)239 static void psp_v10_0_ring_set_wptr(struct psp_context *psp, uint32_t value)
240 {
241 struct amdgpu_device *adev = psp->adev;
242
243 WREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_67, value);
244 }
245
246 static const struct psp_funcs psp_v10_0_funcs = {
247 .init_microcode = psp_v10_0_init_microcode,
248 .ring_init = psp_v10_0_ring_init,
249 .ring_create = psp_v10_0_ring_create,
250 .ring_stop = psp_v10_0_ring_stop,
251 .ring_destroy = psp_v10_0_ring_destroy,
252 .mode1_reset = psp_v10_0_mode1_reset,
253 .ring_get_wptr = psp_v10_0_ring_get_wptr,
254 .ring_set_wptr = psp_v10_0_ring_set_wptr,
255 };
256
psp_v10_0_set_psp_funcs(struct psp_context * psp)257 void psp_v10_0_set_psp_funcs(struct psp_context *psp)
258 {
259 psp->funcs = &psp_v10_0_funcs;
260 }
261