Commit 15aa1305 authored by Likun Gao's avatar Likun Gao Committed by Alex Deucher
Browse files

drm/amdgpu: add function to init SDMA microcode 



Add an common function to init SDMA related microcode.

Signed-off-by: default avatarLikun Gao <Likun.Gao@amd.com>
Reviewed-by: default avatarHawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent e268df1d

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

+89 −0
Original line number Diff line number Diff line
@@ -21,6 +21,7 @@ 
 *

 */



#include <linux/firmware.h>

#include "amdgpu.h"

#include "amdgpu_sdma.h"

#include "amdgpu_ras.h"
@@ -150,3 +151,91 @@ int amdgpu_sdma_process_ecc_irq(struct amdgpu_device *adev, 
	amdgpu_ras_interrupt_dispatch(adev, &ih_data);

	return 0;

}



static int amdgpu_sdma_init_inst_ctx(struct amdgpu_sdma_instance *sdma_inst)

{

	int err = 0;

	const struct sdma_firmware_header_v1_0 *hdr;



	err = amdgpu_ucode_validate(sdma_inst->fw);

	if (err)

		return err;



	hdr = (const struct sdma_firmware_header_v1_0 *)sdma_inst->fw->data;

	sdma_inst->fw_version = le32_to_cpu(hdr->header.ucode_version);

	sdma_inst->feature_version = le32_to_cpu(hdr->ucode_feature_version);



	if (sdma_inst->feature_version >= 20)

		sdma_inst->burst_nop = true;



	return 0;

}



void amdgpu_sdma_destroy_inst_ctx(struct amdgpu_device *adev,

				  bool duplicate)

{

	int i;



	for (i = 0; i < adev->sdma.num_instances; i++) {

		release_firmware(adev->sdma.instance[i].fw);

		if (duplicate)

			break;

	}



	memset((void *)adev->sdma.instance, 0,

	       sizeof(struct amdgpu_sdma_instance) * AMDGPU_MAX_SDMA_INSTANCES);

}



int amdgpu_sdma_init_microcode(struct amdgpu_device *adev,

			       char *fw_name, u32 instance,

			       bool duplicate)

{

	struct amdgpu_firmware_info *info = NULL;

	const struct common_firmware_header *header = NULL;

	int err = 0, i;



	if (duplicate && instance)

		return -EINVAL;



	err = request_firmware(&adev->sdma.instance[instance].fw, fw_name, adev->dev);

	if (err)

		goto out;

	err = amdgpu_sdma_init_inst_ctx(&adev->sdma.instance[instance]);

	if (err)

		goto out;



	if (duplicate) {

		for (i = 1; i < adev->sdma.num_instances; i++)

			memcpy((void *)&adev->sdma.instance[i],

			       (void *)&adev->sdma.instance[0],

			       sizeof(struct amdgpu_sdma_instance));

	}



	if (amdgpu_sriov_vf(adev))

		return 0;



	DRM_DEBUG("psp_load == '%s'\n",

		  adev->firmware.load_type == AMDGPU_FW_LOAD_PSP ? "true" : "false");



	if (adev->firmware.load_type == AMDGPU_FW_LOAD_PSP) {

		for (i = 0; i < adev->sdma.num_instances; i++) {

			if (!duplicate && (instance != i))

				continue;

			else {

				info = &adev->firmware.ucode[AMDGPU_UCODE_ID_SDMA0 + i];

				info->ucode_id = AMDGPU_UCODE_ID_SDMA0 + i;

				info->fw = adev->sdma.instance[i].fw;

				header = (const struct common_firmware_header *)info->fw->data;

				adev->firmware.fw_size +=

					ALIGN(le32_to_cpu(header->ucode_size_bytes), PAGE_SIZE);

			}

		}

	}



out:

	if (err) {

		DRM_ERROR("SDMA: Failed to init firmware \"%s\"\n", fw_name);

		amdgpu_sdma_destroy_inst_ctx(adev, duplicate);

	}

	return err;

}

drivers/gpu/drm/amd/amdgpu/amdgpu_sdma.h

+4 −0
Original line number Diff line number Diff line
@@ -124,4 +124,8 @@ int amdgpu_sdma_process_ras_data_cb(struct amdgpu_device *adev, 
int amdgpu_sdma_process_ecc_irq(struct amdgpu_device *adev,

				      struct amdgpu_irq_src *source,

				      struct amdgpu_iv_entry *entry);

int amdgpu_sdma_init_microcode(struct amdgpu_device *adev,

        char *fw_name, u32 instance, bool duplicate);

void amdgpu_sdma_destroy_inst_ctx(struct amdgpu_device *adev,

        bool duplicate);

#endif