diff options
Diffstat (limited to 'drivers/gpu/drm/i915/gt/uc/intel_gsc_binary_headers.h')
-rw-r--r-- | drivers/gpu/drm/i915/gt/uc/intel_gsc_binary_headers.h | 74 |
1 files changed, 74 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/gt/uc/intel_gsc_binary_headers.h b/drivers/gpu/drm/i915/gt/uc/intel_gsc_binary_headers.h new file mode 100644 index 000000000000..714f0c256118 --- /dev/null +++ b/drivers/gpu/drm/i915/gt/uc/intel_gsc_binary_headers.h @@ -0,0 +1,74 @@ +/* SPDX-License-Identifier: MIT */ +/* + * Copyright © 2023 Intel Corporation + */ + +#ifndef _INTEL_GSC_BINARY_HEADERS_H_ +#define _INTEL_GSC_BINARY_HEADERS_H_ + +#include <linux/types.h> + +/* Code partition directory (CPD) structures */ +struct intel_gsc_cpd_header_v2 { + u32 header_marker; +#define INTEL_GSC_CPD_HEADER_MARKER 0x44504324 + + u32 num_of_entries; + u8 header_version; + u8 entry_version; + u8 header_length; /* in bytes */ + u8 flags; + u32 partition_name; + u32 crc32; +} __packed; + +struct intel_gsc_cpd_entry { + u8 name[12]; + + /* + * Bits 0-24: offset from the beginning of the code partition + * Bit 25: huffman compressed + * Bits 26-31: reserved + */ + u32 offset; +#define INTEL_GSC_CPD_ENTRY_OFFSET_MASK GENMASK(24, 0) +#define INTEL_GSC_CPD_ENTRY_HUFFMAN_COMP BIT(25) + + /* + * Module/Item length, in bytes. For Huffman-compressed modules, this + * refers to the uncompressed size. For software-compressed modules, + * this refers to the compressed size. + */ + u32 length; + + u8 reserved[4]; +} __packed; + +struct intel_gsc_version { + u16 major; + u16 minor; + u16 hotfix; + u16 build; +} __packed; + +struct intel_gsc_manifest_header { + u32 header_type; /* 0x4 for manifest type */ + u32 header_length; /* in dwords */ + u32 header_version; + u32 flags; + u32 vendor; + u32 date; + u32 size; /* In dwords, size of entire manifest (header + extensions) */ + u32 header_id; + u32 internal_data; + struct intel_gsc_version fw_version; + u32 security_version; + struct intel_gsc_version meu_kit_version; + u32 meu_manifest_version; + u8 general_data[4]; + u8 reserved3[56]; + u32 modulus_size; /* in dwords */ + u32 exponent_size; /* in dwords */ +} __packed; + +#endif |