[PATCH Review 6/6] drm/amdgpu: Set EEPROM ras info

[Zhang, Hawking]

[AMD Official Use Only - General]

Series is

Reviewed-by: Hawking Zhang <Hawking.Zhang at amd.com>

Regards,
Hawking
-----Original Message-----
From: amd-gfx <amd-gfx-bounces at lists.freedesktop.org> On Behalf Of Stanley.Yang
Sent: Wednesday, June 7, 2023 14:48
To: amd-gfx at lists.freedesktop.org; Zhang, Hawking <Hawking.Zhang at amd.com>; Zhou1, Tao <Tao.Zhou1 at amd.com>; Chai, Thomas <YiPeng.Chai at amd.com>; Li, Candice <Candice.Li at amd.com>
Cc: Yang, Stanley <Stanley.Yang at amd.com>
Subject: [PATCH Review 6/6] drm/amdgpu: Set EEPROM ras info

Set EEPROM ras info: rma status, health percent and bad page threshold.

Signed-off-by: Stanley.Yang <Stanley.Yang at amd.com>
---
 .../gpu/drm/amd/amdgpu/amdgpu_ras_eeprom.c    | 24 +++++++++++++++++++
 .../gpu/drm/amd/amdgpu/amdgpu_ras_eeprom.h    |  5 ++++
 2 files changed, 29 insertions(+)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ras_eeprom.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ras_eeprom.c
index 9eceb3bc1058..c2e8f6491ac6 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ras_eeprom.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ras_eeprom.c
@@ -406,6 +406,7 @@ int amdgpu_ras_eeprom_reset_table(struct amdgpu_ras_eeprom_control *control)  {
        struct amdgpu_device *adev = to_amdgpu_device(control);
        struct amdgpu_ras_eeprom_table_header *hdr = &control->tbl_hdr;
+       struct amdgpu_ras_eeprom_table_ras_info *rai = &control->tbl_rai;
        struct amdgpu_ras *con = amdgpu_ras_get_context(adev);
        u8 csum;
        int res;
@@ -423,6 +424,14 @@ int amdgpu_ras_eeprom_reset_table(struct amdgpu_ras_eeprom_control *control)
                hdr->first_rec_offset = RAS_RECORD_START_V2_1;
                hdr->tbl_size = RAS_TABLE_HEADER_SIZE +
                                RAS_TABLE_V2_1_INFO_SIZE;
+               rai->rma_status = GPU_HEALTH_USABLE;
+               /**
+                * GPU health represented as a percentage.
+                * 0 means worst health, 100 means fully health.
+                */
+               rai->health_percent = 100;
+               /* ecc_page_threshold = 0 means disable bad page retirement */
+               rai->ecc_page_threshold = con->bad_page_cnt_threshold;
        } else {
                hdr->first_rec_offset = RAS_RECORD_START;
                hdr->tbl_size = RAS_TABLE_HEADER_SIZE; @@ -712,6 +721,10 @@ amdgpu_ras_eeprom_update_header(struct amdgpu_ras_eeprom_control *control)
                        "Saved bad pages %d reaches threshold value %d\n",
                        control->ras_num_recs, ras->bad_page_cnt_threshold);
                control->tbl_hdr.header = RAS_TABLE_HDR_BAD;
+               if (control->tbl_hdr.version == RAS_TABLE_VER_V2_1) {
+                       control->tbl_rai.rma_status = GPU_RETIRED__ECC_REACH_THRESHOLD;
+                       control->tbl_rai.health_percent = 0;
+               }
        }

        if (control->tbl_hdr.version == RAS_TABLE_VER_V2_1) @@ -749,6 +762,17 @@ amdgpu_ras_eeprom_update_header(struct amdgpu_ras_eeprom_control *control)
                goto Out;
        }

+       /**
+        * bad page records have been stored in eeprom,
+        * now calculate gpu health percent
+        */
+       if (amdgpu_bad_page_threshold != 0 &&
+           control->tbl_hdr.version == RAS_TABLE_VER_V2_1 &&
+           control->ras_num_recs < ras->bad_page_cnt_threshold)
+               control->tbl_rai.health_percent = ((ras->bad_page_cnt_threshold -
+                                                  control->ras_num_recs) * 100) /
+                                                  ras->bad_page_cnt_threshold;
+
        /* Recalc the checksum.
         */
        csum = 0;
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ras_eeprom.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_ras_eeprom.h
index 3c5575c19bf8..6dfd667f3013 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ras_eeprom.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ras_eeprom.h
@@ -31,6 +31,11 @@

 struct amdgpu_device;

+enum amdgpu_ras_gpu_health_status {
+       GPU_HEALTH_USABLE = 0,
+       GPU_RETIRED__ECC_REACH_THRESHOLD = 2,
+};
+
 enum amdgpu_ras_eeprom_err_type {
        AMDGPU_RAS_EEPROM_ERR_NA,
        AMDGPU_RAS_EEPROM_ERR_RECOVERABLE,
--
2.17.1