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b87f920b93
The hardware mailboxes are used by the driver to submit requests to firmware and receive the completion notices from hardware. Initially, a management mailbox channel is up and running. The driver may request firmware to create/destroy more channels dynamically through management channel. Add driver internal mailbox interfaces. - create/destroy a mailbox channel instance - send a message to the firmware through a specific channel - wait for a notification from the specific channel Co-developed-by: George Yang <George.Yang@amd.com> Signed-off-by: George Yang <George.Yang@amd.com> Co-developed-by: Min Ma <min.ma@amd.com> Signed-off-by: Min Ma <min.ma@amd.com> Reviewed-by: Jeffrey Hugo <quic_jhugo@quicinc.com> Signed-off-by: Lizhi Hou <lizhi.hou@amd.com> Signed-off-by: Jeffrey Hugo <quic_jhugo@quicinc.com> Link: https://patchwork.freedesktop.org/patch/msgid/20241118172942.2014541-4-lizhi.hou@amd.com
62 lines
1.5 KiB
C
62 lines
1.5 KiB
C
// SPDX-License-Identifier: GPL-2.0
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/*
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* Copyright (C) 2023-2024, Advanced Micro Devices, Inc.
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*/
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#include <drm/drm_device.h>
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#include <drm/drm_print.h>
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#include "amdxdna_pci_drv.h"
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static ssize_t vbnv_show(struct device *dev, struct device_attribute *attr, char *buf)
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{
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struct amdxdna_dev *xdna = dev_get_drvdata(dev);
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return sprintf(buf, "%s\n", xdna->dev_info->vbnv);
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}
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static DEVICE_ATTR_RO(vbnv);
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static ssize_t device_type_show(struct device *dev, struct device_attribute *attr, char *buf)
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{
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struct amdxdna_dev *xdna = dev_get_drvdata(dev);
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return sprintf(buf, "%d\n", xdna->dev_info->device_type);
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}
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static DEVICE_ATTR_RO(device_type);
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static ssize_t fw_version_show(struct device *dev, struct device_attribute *attr, char *buf)
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{
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struct amdxdna_dev *xdna = dev_get_drvdata(dev);
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return sprintf(buf, "%d.%d.%d.%d\n", xdna->fw_ver.major,
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xdna->fw_ver.minor, xdna->fw_ver.sub,
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xdna->fw_ver.build);
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}
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static DEVICE_ATTR_RO(fw_version);
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static struct attribute *amdxdna_attrs[] = {
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&dev_attr_device_type.attr,
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&dev_attr_vbnv.attr,
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&dev_attr_fw_version.attr,
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NULL,
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};
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static struct attribute_group amdxdna_attr_group = {
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.attrs = amdxdna_attrs,
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};
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int amdxdna_sysfs_init(struct amdxdna_dev *xdna)
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{
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int ret;
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ret = sysfs_create_group(&xdna->ddev.dev->kobj, &amdxdna_attr_group);
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if (ret)
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XDNA_ERR(xdna, "Create attr group failed");
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return ret;
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}
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void amdxdna_sysfs_fini(struct amdxdna_dev *xdna)
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{
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sysfs_remove_group(&xdna->ddev.dev->kobj, &amdxdna_attr_group);
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}
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