drm/amdgpu: adding xgmi error monitoring (24f9aacf) · Commits · 戴 / test

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

+36 −2

Original line number	Diff line number	Diff line
		@@ -25,7 +25,7 @@
		#include "amdgpu.h"
		#include "amdgpu_xgmi.h"
		#include "amdgpu_smu.h"

		#include "df/df_3_6_offset.h"

		static DEFINE_MUTEX(xgmi_mutex);

		@@ -131,9 +131,37 @@ static ssize_t amdgpu_xgmi_show_device_id(struct device *dev,

		}

		#define AMDGPU_XGMI_SET_FICAA(o) ((o) \| 0x456801)
		static ssize_t amdgpu_xgmi_show_error(struct device *dev,
		struct device_attribute *attr,
		char *buf)
		{
		struct drm_device *ddev = dev_get_drvdata(dev);
		struct amdgpu_device *adev = ddev->dev_private;
		uint32_t ficaa_pie_ctl_in, ficaa_pie_status_in;
		uint64_t fica_out;
		unsigned int error_count = 0;

		static DEVICE_ATTR(xgmi_device_id, S_IRUGO, amdgpu_xgmi_show_device_id, NULL);
		ficaa_pie_ctl_in = AMDGPU_XGMI_SET_FICAA(0x200);
		ficaa_pie_status_in = AMDGPU_XGMI_SET_FICAA(0x208);

		fica_out = adev->df_funcs->get_fica(adev, ficaa_pie_ctl_in);
		if (fica_out != 0x1f)
		pr_err("xGMI error counters not enabled!\n");

		fica_out = adev->df_funcs->get_fica(adev, ficaa_pie_status_in);

		if ((fica_out & 0xffff) == 2)
		error_count = ((fica_out >> 62) & 0x1) + (fica_out >> 63);

		adev->df_funcs->set_fica(adev, ficaa_pie_status_in, 0, 0);

		return snprintf(buf, PAGE_SIZE, "%d\n", error_count);
		}


		static DEVICE_ATTR(xgmi_device_id, S_IRUGO, amdgpu_xgmi_show_device_id, NULL);
		static DEVICE_ATTR(xgmi_error, S_IRUGO, amdgpu_xgmi_show_error, NULL);

		static int amdgpu_xgmi_sysfs_add_dev_info(struct amdgpu_device *adev,
		struct amdgpu_hive_info *hive)
		@@ -148,6 +176,12 @@ static int amdgpu_xgmi_sysfs_add_dev_info(struct amdgpu_device *adev,
		return ret;
		}

		/* Create xgmi error file */
		ret = device_create_file(adev->dev, &dev_attr_xgmi_error);
		if (ret)
		pr_err("failed to create xgmi_error\n");


		/* Create sysfs link to hive info folder on the first device */
		if (adev != hive->adev) {
		ret = sysfs_create_link(&adev->dev->kobj, hive->kobj,

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