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

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To be used when ip_discovery binary is not carried by vbios

Signed-off-by: Hawking Zhang <Hawking.Zhang@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Hawking Zhang 2021-11-23 15:25:03 +08:00 • committed by Alex Deucher
parent c40bdfb2ff
commit 43a80bd511
1 changed files with 30 additions and 1 deletions
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31
drivers/gpu/drm/amd/amdgpu/amdgpu_discovery.c
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@ -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;