[PATCH] drm/amd/pm: Retrieve UMC ODECC error count from aca bank

[Zhang, Hawking]

[AMD Official Use Only - General]

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 Candice Li
Sent: Friday, February 2, 2024 19:13
To: amd-gfx at lists.freedesktop.org
Cc: Li, Candice <Candice.Li at amd.com>
Subject: [PATCH] drm/amd/pm: Retrieve UMC ODECC error count from aca bank

Instead of software managed counters.

Signed-off-by: Candice Li <candice.li at amd.com>
---
 drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0_6_ppt.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0_6_ppt.c b/drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0_6_ppt.c
index d6e14a5f406e63..03873d784be6d6 100644
--- a/drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0_6_ppt.c
+++ b/drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0_6_ppt.c
@@ -2552,8 +2552,12 @@ static int mca_umc_mca_get_err_count(const struct mca_ras_info *mca_ras, struct
                                     enum amdgpu_mca_error_type type, struct mca_bank_entry *entry, uint32_t *count)  {
        uint64_t status0;
+       uint32_t ext_error_code;
+       uint32_t odecc_err_cnt;

        status0 = entry->regs[MCA_REG_IDX_STATUS];
+       ext_error_code = MCA_REG__STATUS__ERRORCODEEXT(status0);
+       odecc_err_cnt =
+MCA_REG__MISC0__ERRCNT(entry->regs[MCA_REG_IDX_MISC0]);

        if (!REG_GET_FIELD(status0, MCMP1_STATUST0, Val)) {
                *count = 0;
@@ -2563,7 +2567,7 @@ static int mca_umc_mca_get_err_count(const struct mca_ras_info *mca_ras, struct
        if (umc_v12_0_is_deferred_error(adev, status0) ||
            umc_v12_0_is_uncorrectable_error(adev, status0) ||
            umc_v12_0_is_correctable_error(adev, status0))
-               *count = 1;
+               *count = (ext_error_code == 0) ? odecc_err_cnt : 1;

        return 0;
 }
--
2.25.1