Commit 43a80bd5 authored by Hawking Zhang's avatar Hawking Zhang Committed by Alex Deucher
Browse files

drm/amdgpu: add helper to load ip_discovery binary from file 



To be used when ip_discovery binary is not carried by vbios

Signed-off-by: default avatarHawking Zhang <Hawking.Zhang@amd.com>
Reviewed-by: default avatarAlex Deucher <alexander.deucher@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent c40bdfb2

drivers/gpu/drm/amd/amdgpu/amdgpu_discovery.c

+30 −1
Original line number Diff line number Diff line
@@ -67,7 +67,8 @@ 
#include "smuio_v11_0_6.h"

#include "smuio_v13_0.h"



MODULE_FIRMWARE("amdgpu/ip_discovery.bin");

#define FIRMWARE_IP_DISCOVERY "amdgpu/ip_discovery.bin"

MODULE_FIRMWARE(FIRMWARE_IP_DISCOVERY);



#define mmRCC_CONFIG_MEMSIZE	0xde3

#define mmMM_INDEX		0x0
@@ -189,6 +190,34 @@ static int amdgpu_discovery_read_binary(struct amdgpu_device *adev, uint8_t *bin 
	return 0;

}



static int amdgpu_discovery_read_binary_from_file(struct amdgpu_device *adev, uint8_t *binary)

{

	const struct firmware *fw;

	const char *fw_name;

	int r;



	switch (amdgpu_discovery) {

	case 2:

		fw_name = FIRMWARE_IP_DISCOVERY;

		break;

	default:

		dev_warn(adev->dev, "amdgpu_discovery is not set properly\n");

		return -EINVAL;

	}



	r = request_firmware(&fw, fw_name, adev->dev);

	if (r) {

		dev_err(adev->dev, "can't load firmware \"%s\"\n",

			fw_name);

		return r;

	}



	memcpy((u8 *)binary, (u8 *)fw->data, adev->mman.discovery_tmr_size);

	release_firmware(fw);



	return 0;

}



static uint16_t amdgpu_discovery_calculate_checksum(uint8_t *data, uint32_t size)

{

	uint16_t checksum = 0;