falcon.c (20e7dce255e96a4d58168cf48e20210146dacf23) falcon.c (d972d6247628054f4a9f05c084a1f52de9df209d)
1// SPDX-License-Identifier: GPL-2.0-only
2/*
3 * Copyright (c) 2015, NVIDIA Corporation.
4 */
5
6#include <linux/platform_device.h>
7#include <linux/dma-mapping.h>
8#include <linux/firmware.h>

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53 falcon_writel(falcon, cmd, FALCON_DMATRFCMD);
54
55 return falcon_dma_wait_idle(falcon);
56}
57
58static void falcon_copy_firmware_image(struct falcon *falcon,
59 const struct firmware *firmware)
60{
1// SPDX-License-Identifier: GPL-2.0-only
2/*
3 * Copyright (c) 2015, NVIDIA Corporation.
4 */
5
6#include <linux/platform_device.h>
7#include <linux/dma-mapping.h>
8#include <linux/firmware.h>

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53 falcon_writel(falcon, cmd, FALCON_DMATRFCMD);
54
55 return falcon_dma_wait_idle(falcon);
56}
57
58static void falcon_copy_firmware_image(struct falcon *falcon,
59 const struct firmware *firmware)
60{
61 u32 *firmware_vaddr = falcon->firmware.vaddr;
61 u32 *virt = falcon->firmware.virt;
62 size_t i;
63
64 /* copy the whole thing taking into account endianness */
65 for (i = 0; i < firmware->size / sizeof(u32); i++)
62 size_t i;
63
64 /* copy the whole thing taking into account endianness */
65 for (i = 0; i < firmware->size / sizeof(u32); i++)
66 firmware_vaddr[i] = le32_to_cpu(((u32 *)firmware->data)[i]);
66 virt[i] = le32_to_cpu(((u32 *)firmware->data)[i]);
67}
68
69static int falcon_parse_firmware_image(struct falcon *falcon)
70{
67}
68
69static int falcon_parse_firmware_image(struct falcon *falcon)
70{
71 struct falcon_fw_bin_header_v1 *bin = (void *)falcon->firmware.vaddr;
71 struct falcon_fw_bin_header_v1 *bin = (void *)falcon->firmware.virt;
72 struct falcon_fw_os_header_v1 *os;
73
74 /* endian problems would show up right here */
75 if (bin->magic != PCI_VENDOR_ID_NVIDIA) {
76 dev_err(falcon->dev, "incorrect firmware magic\n");
77 return -EINVAL;
78 }
79

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84 }
85
86 /* check that the firmware size is consistent */
87 if (bin->size > falcon->firmware.size) {
88 dev_err(falcon->dev, "firmware image size inconsistency\n");
89 return -EINVAL;
90 }
91
72 struct falcon_fw_os_header_v1 *os;
73
74 /* endian problems would show up right here */
75 if (bin->magic != PCI_VENDOR_ID_NVIDIA) {
76 dev_err(falcon->dev, "incorrect firmware magic\n");
77 return -EINVAL;
78 }
79

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84 }
85
86 /* check that the firmware size is consistent */
87 if (bin->size > falcon->firmware.size) {
88 dev_err(falcon->dev, "firmware image size inconsistency\n");
89 return -EINVAL;
90 }
91
92 os = falcon->firmware.vaddr + bin->os_header_offset;
92 os = falcon->firmware.virt + bin->os_header_offset;
93
94 falcon->firmware.bin_data.size = bin->os_size;
95 falcon->firmware.bin_data.offset = bin->os_data_offset;
96 falcon->firmware.code.offset = os->code_offset;
97 falcon->firmware.code.size = os->code_size;
98 falcon->firmware.data.offset = os->data_offset;
99 falcon->firmware.data.size = os->data_size;
100

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133 release_firmware(firmware);
134 falcon->firmware.firmware = NULL;
135
136 return 0;
137}
138
139int falcon_init(struct falcon *falcon)
140{
93
94 falcon->firmware.bin_data.size = bin->os_size;
95 falcon->firmware.bin_data.offset = bin->os_data_offset;
96 falcon->firmware.code.offset = os->code_offset;
97 falcon->firmware.code.size = os->code_size;
98 falcon->firmware.data.offset = os->data_offset;
99 falcon->firmware.data.size = os->data_size;
100

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133 release_firmware(firmware);
134 falcon->firmware.firmware = NULL;
135
136 return 0;
137}
138
139int falcon_init(struct falcon *falcon)
140{
141 falcon->firmware.vaddr = NULL;
141 falcon->firmware.virt = NULL;
142
143 return 0;
144}
145
146void falcon_exit(struct falcon *falcon)
147{
148 if (falcon->firmware.firmware)
149 release_firmware(falcon->firmware.firmware);
150}
151
152int falcon_boot(struct falcon *falcon)
153{
154 unsigned long offset;
155 u32 value;
156 int err;
157
142
143 return 0;
144}
145
146void falcon_exit(struct falcon *falcon)
147{
148 if (falcon->firmware.firmware)
149 release_firmware(falcon->firmware.firmware);
150}
151
152int falcon_boot(struct falcon *falcon)
153{
154 unsigned long offset;
155 u32 value;
156 int err;
157
158 if (!falcon->firmware.vaddr)
158 if (!falcon->firmware.virt)
159 return -EINVAL;
160
161 err = readl_poll_timeout(falcon->regs + FALCON_DMACTL, value,
162 (value & (FALCON_DMACTL_IMEM_SCRUBBING |
163 FALCON_DMACTL_DMEM_SCRUBBING)) == 0,
164 10, 10000);
165 if (err < 0)
166 return err;
167
168 falcon_writel(falcon, 0, FALCON_DMACTL);
169
170 /* setup the address of the binary data so Falcon can access it later */
159 return -EINVAL;
160
161 err = readl_poll_timeout(falcon->regs + FALCON_DMACTL, value,
162 (value & (FALCON_DMACTL_IMEM_SCRUBBING |
163 FALCON_DMACTL_DMEM_SCRUBBING)) == 0,
164 10, 10000);
165 if (err < 0)
166 return err;
167
168 falcon_writel(falcon, 0, FALCON_DMACTL);
169
170 /* setup the address of the binary data so Falcon can access it later */
171 falcon_writel(falcon, (falcon->firmware.paddr +
171 falcon_writel(falcon, (falcon->firmware.iova +
172 falcon->firmware.bin_data.offset) >> 8,
173 FALCON_DMATRFBASE);
174
175 /* copy the data segment into Falcon internal memory */
176 for (offset = 0; offset < falcon->firmware.data.size; offset += 256)
177 falcon_copy_chunk(falcon,
178 falcon->firmware.data.offset + offset,
179 offset, FALCON_MEMORY_DATA);

--- 43 unchanged lines hidden --- 		172 falcon->firmware.bin_data.offset) >> 8,
173 FALCON_DMATRFBASE);
174
175 /* copy the data segment into Falcon internal memory */
176 for (offset = 0; offset < falcon->firmware.data.size; offset += 256)
177 falcon_copy_chunk(falcon,
178 falcon->firmware.data.offset + offset,
179 offset, FALCON_MEMORY_DATA);

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