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      1 /*	$NetBSD: radeon_ucode.c,v 1.4 2021/12/18 23:45:43 riastradh Exp $	*/
      2 
      3 /*
      4  * Copyright 2014 Advanced Micro Devices, Inc.
      5  *
      6  * Permission is hereby granted, free of charge, to any person obtaining a
      7  * copy of this software and associated documentation files (the "Software"),
      8  * to deal in the Software without restriction, including without limitation
      9  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
     10  * and/or sell copies of the Software, and to permit persons to whom the
     11  * Software is furnished to do so, subject to the following conditions:
     12  *
     13  * The above copyright notice and this permission notice shall be included in
     14  * all copies or substantial portions of the Software.
     15  *
     16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
     17  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
     18  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
     19  * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
     20  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
     21  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
     22  * OTHER DEALINGS IN THE SOFTWARE.
     23  *
     24  */
     25 
     26 #include <sys/cdefs.h>
     27 __KERNEL_RCSID(0, "$NetBSD: radeon_ucode.c,v 1.4 2021/12/18 23:45:43 riastradh Exp $");
     28 
     29 #include <linux/firmware.h>
     30 #include <linux/slab.h>
     31 #include <linux/module.h>
     32 
     33 #include "radeon.h"
     34 #include "radeon_ucode.h"
     35 
     36 static void radeon_ucode_print_common_hdr(const struct common_firmware_header *hdr)
     37 {
     38 	DRM_DEBUG("size_bytes: %u\n", le32_to_cpu(hdr->size_bytes));
     39 	DRM_DEBUG("header_size_bytes: %u\n", le32_to_cpu(hdr->header_size_bytes));
     40 	DRM_DEBUG("header_version_major: %u\n", le16_to_cpu(hdr->header_version_major));
     41 	DRM_DEBUG("header_version_minor: %u\n", le16_to_cpu(hdr->header_version_minor));
     42 	DRM_DEBUG("ip_version_major: %u\n", le16_to_cpu(hdr->ip_version_major));
     43 	DRM_DEBUG("ip_version_minor: %u\n", le16_to_cpu(hdr->ip_version_minor));
     44 	DRM_DEBUG("ucode_version: 0x%08x\n", le32_to_cpu(hdr->ucode_version));
     45 	DRM_DEBUG("ucode_size_bytes: %u\n", le32_to_cpu(hdr->ucode_size_bytes));
     46 	DRM_DEBUG("ucode_array_offset_bytes: %u\n",
     47 		  le32_to_cpu(hdr->ucode_array_offset_bytes));
     48 	DRM_DEBUG("crc32: 0x%08x\n", le32_to_cpu(hdr->crc32));
     49 }
     50 
     51 void radeon_ucode_print_mc_hdr(const struct common_firmware_header *hdr)
     52 {
     53 	uint16_t version_major = le16_to_cpu(hdr->header_version_major);
     54 	uint16_t version_minor = le16_to_cpu(hdr->header_version_minor);
     55 
     56 	DRM_DEBUG("MC\n");
     57 	radeon_ucode_print_common_hdr(hdr);
     58 
     59 	if (version_major == 1) {
     60 		const struct mc_firmware_header_v1_0 *mc_hdr =
     61 			const_container_of(hdr, struct mc_firmware_header_v1_0, header);
     62 
     63 		DRM_DEBUG("io_debug_size_bytes: %u\n",
     64 			  le32_to_cpu(mc_hdr->io_debug_size_bytes));
     65 		DRM_DEBUG("io_debug_array_offset_bytes: %u\n",
     66 			  le32_to_cpu(mc_hdr->io_debug_array_offset_bytes));
     67 	} else {
     68 		DRM_ERROR("Unknown MC ucode version: %u.%u\n", version_major, version_minor);
     69 	}
     70 }
     71 
     72 void radeon_ucode_print_smc_hdr(const struct common_firmware_header *hdr)
     73 {
     74 	uint16_t version_major = le16_to_cpu(hdr->header_version_major);
     75 	uint16_t version_minor = le16_to_cpu(hdr->header_version_minor);
     76 
     77 	DRM_DEBUG("SMC\n");
     78 	radeon_ucode_print_common_hdr(hdr);
     79 
     80 	if (version_major == 1) {
     81 		const struct smc_firmware_header_v1_0 *smc_hdr =
     82 			const_container_of(hdr, struct smc_firmware_header_v1_0, header);
     83 
     84 		DRM_DEBUG("ucode_start_addr: %u\n", le32_to_cpu(smc_hdr->ucode_start_addr));
     85 	} else {
     86 		DRM_ERROR("Unknown SMC ucode version: %u.%u\n", version_major, version_minor);
     87 	}
     88 }
     89 
     90 void radeon_ucode_print_gfx_hdr(const struct common_firmware_header *hdr)
     91 {
     92 	uint16_t version_major = le16_to_cpu(hdr->header_version_major);
     93 	uint16_t version_minor = le16_to_cpu(hdr->header_version_minor);
     94 
     95 	DRM_DEBUG("GFX\n");
     96 	radeon_ucode_print_common_hdr(hdr);
     97 
     98 	if (version_major == 1) {
     99 		const struct gfx_firmware_header_v1_0 *gfx_hdr =
    100 			const_container_of(hdr, struct gfx_firmware_header_v1_0, header);
    101 
    102 		DRM_DEBUG("ucode_feature_version: %u\n",
    103 			  le32_to_cpu(gfx_hdr->ucode_feature_version));
    104 		DRM_DEBUG("jt_offset: %u\n", le32_to_cpu(gfx_hdr->jt_offset));
    105 		DRM_DEBUG("jt_size: %u\n", le32_to_cpu(gfx_hdr->jt_size));
    106 	} else {
    107 		DRM_ERROR("Unknown GFX ucode version: %u.%u\n", version_major, version_minor);
    108 	}
    109 }
    110 
    111 void radeon_ucode_print_rlc_hdr(const struct common_firmware_header *hdr)
    112 {
    113 	uint16_t version_major = le16_to_cpu(hdr->header_version_major);
    114 	uint16_t version_minor = le16_to_cpu(hdr->header_version_minor);
    115 
    116 	DRM_DEBUG("RLC\n");
    117 	radeon_ucode_print_common_hdr(hdr);
    118 
    119 	if (version_major == 1) {
    120 		const struct rlc_firmware_header_v1_0 *rlc_hdr =
    121 			const_container_of(hdr, struct rlc_firmware_header_v1_0, header);
    122 
    123 		DRM_DEBUG("ucode_feature_version: %u\n",
    124 			  le32_to_cpu(rlc_hdr->ucode_feature_version));
    125 		DRM_DEBUG("save_and_restore_offset: %u\n",
    126 			  le32_to_cpu(rlc_hdr->save_and_restore_offset));
    127 		DRM_DEBUG("clear_state_descriptor_offset: %u\n",
    128 			  le32_to_cpu(rlc_hdr->clear_state_descriptor_offset));
    129 		DRM_DEBUG("avail_scratch_ram_locations: %u\n",
    130 			  le32_to_cpu(rlc_hdr->avail_scratch_ram_locations));
    131 		DRM_DEBUG("master_pkt_description_offset: %u\n",
    132 			  le32_to_cpu(rlc_hdr->master_pkt_description_offset));
    133 	} else {
    134 		DRM_ERROR("Unknown RLC ucode version: %u.%u\n", version_major, version_minor);
    135 	}
    136 }
    137 
    138 void radeon_ucode_print_sdma_hdr(const struct common_firmware_header *hdr)
    139 {
    140 	uint16_t version_major = le16_to_cpu(hdr->header_version_major);
    141 	uint16_t version_minor = le16_to_cpu(hdr->header_version_minor);
    142 
    143 	DRM_DEBUG("SDMA\n");
    144 	radeon_ucode_print_common_hdr(hdr);
    145 
    146 	if (version_major == 1) {
    147 		const struct sdma_firmware_header_v1_0 *sdma_hdr =
    148 			const_container_of(hdr, struct sdma_firmware_header_v1_0, header);
    149 
    150 		DRM_DEBUG("ucode_feature_version: %u\n",
    151 			  le32_to_cpu(sdma_hdr->ucode_feature_version));
    152 		DRM_DEBUG("ucode_change_version: %u\n",
    153 			  le32_to_cpu(sdma_hdr->ucode_change_version));
    154 		DRM_DEBUG("jt_offset: %u\n", le32_to_cpu(sdma_hdr->jt_offset));
    155 		DRM_DEBUG("jt_size: %u\n", le32_to_cpu(sdma_hdr->jt_size));
    156 	} else {
    157 		DRM_ERROR("Unknown SDMA ucode version: %u.%u\n",
    158 			  version_major, version_minor);
    159 	}
    160 }
    161 
    162 int radeon_ucode_validate(const struct firmware *fw)
    163 {
    164 	const struct common_firmware_header *hdr =
    165 		(const struct common_firmware_header *)fw->data;
    166 
    167 	if (fw->size == le32_to_cpu(hdr->size_bytes))
    168 		return 0;
    169 
    170 	return -EINVAL;
    171 }
    172 
    173