RE: [PATCH 2/2] drm/amdgpu: optimize the printing order of error data

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[AMD Official Use Only - General]

Series is

Reviewed-by: Hawking Zhang <Hawking.Zhang@xxxxxxx>

Regards,
Hawking
-----Original Message-----
From: Wang, Yang(Kevin) <KevinYang.Wang@xxxxxxx>
Sent: Monday, December 4, 2023 11:01
To: amd-gfx@xxxxxxxxxxxxxxxxxxxxx
Cc: Zhang, Hawking <Hawking.Zhang@xxxxxxx>; Wang, Yang(Kevin) <KevinYang.Wang@xxxxxxx>
Subject: [PATCH 2/2] drm/amdgpu: optimize the printing order of error data

sort error data list to optimize the printing order.

Signed-off-by: Yang Wang <kevinyang.wang@xxxxxxx>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c
index 72634d675e27..bacb59d8b701 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c
@@ -28,6 +28,7 @@
 #include <linux/reboot.h>
 #include <linux/syscalls.h>
 #include <linux/pm_runtime.h>
+#include <linux/list_sort.h>

 #include "amdgpu.h"
 #include "amdgpu_ras.h"
@@ -3674,6 +3675,21 @@ static struct ras_err_node *amdgpu_ras_error_node_new(void)
        return err_node;
 }

+static int ras_err_info_cmp(void *priv, const struct list_head *a,
+const struct list_head *b) {
+       struct ras_err_node *nodea = container_of(a, struct ras_err_node, node);
+       struct ras_err_node *nodeb = container_of(b, struct ras_err_node, node);
+       struct amdgpu_smuio_mcm_config_info *infoa = &nodea->err_info.mcm_info;
+       struct amdgpu_smuio_mcm_config_info *infob =
+&nodeb->err_info.mcm_info;
+
+       if (unlikely(infoa->socket_id != infob->socket_id))
+               return infoa->socket_id - infob->socket_id;
+       else
+               return infoa->die_id - infob->die_id;
+
+       return 0;
+}
+
 static struct ras_err_info *amdgpu_ras_error_get_info(struct ras_err_data *err_data,
                                                      struct amdgpu_smuio_mcm_config_info *mcm_info)  { @@ -3691,6 +3707,7 @@ static struct ras_err_info *amdgpu_ras_error_get_info(struct ras_err_data *err_d

        err_data->err_list_count++;
        list_add_tail(&err_node->node, &err_data->err_node_list);
+       list_sort(NULL, &err_data->err_node_list, ras_err_info_cmp);

        return &err_node->err_info;
 }
--
2.34.1





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