From 32f0e1a3307f1372824dcf28b90fdab5aa11b54f Mon Sep 17 00:00:00 2001 From: Hawking Zhang Date: Mon, 22 Nov 2021 21:19:06 +0800 Subject: [PATCH] drm/amdgpu: add helper to verify ip discovery binary signature To be used to check ip discovery binary signature Signed-off-by: Hawking Zhang Reviewed-by: Alex Deucher Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/amdgpu/amdgpu_discovery.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_discovery.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_discovery.c index 9ca5f5bac1a6..2ff502a81e87 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_discovery.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_discovery.c @@ -235,6 +235,14 @@ static inline bool amdgpu_discovery_verify_checksum(uint8_t *data, uint32_t size return !!(amdgpu_discovery_calculate_checksum(data, size) == expected); } +static inline bool amdgpu_discovery_verify_binary_signature(uint8_t *binary) +{ + struct binary_header *bhdr; + bhdr = (struct binary_header *)binary; + + return (le32_to_cpu(bhdr->binary_signature) == BINARY_SIGNATURE); +} + static int amdgpu_discovery_init(struct amdgpu_device *adev) { struct table_info *info; -- 2.25.1