From: Guchun Chen Date: Wed, 11 Sep 2019 03:12:17 +0000 (+0800) Subject: drm/amdgpu: implement ras query function for pcie bif X-Git-Tag: v5.5-rc1~128^2~26^2~237 X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=1a3f2e8c3c1226c93f6dbbf083d24e76e218d8e1;p=thirdparty%2Fkernel%2Flinux.git drm/amdgpu: implement ras query function for pcie bif ras error query funtionality implementation Signed-off-by: Tao Zhou Signed-off-by: Guchun Chen Reviewed-by: Hawking Zhang Signed-off-by: Alex Deucher --- diff --git a/drivers/gpu/drm/amd/amdgpu/nbio_v7_4.c b/drivers/gpu/drm/amd/amdgpu/nbio_v7_4.c index fa6a8918dc8c3..b776332d979f7 100644 --- a/drivers/gpu/drm/amd/amdgpu/nbio_v7_4.c +++ b/drivers/gpu/drm/amd/amdgpu/nbio_v7_4.c @@ -476,6 +476,36 @@ static int nbio_v7_4_init_ras_err_event_athub_interrupt (struct amdgpu_device *a static void nbio_v7_4_query_ras_error_count(struct amdgpu_device *adev, void *ras_error_status) { + uint32_t global_sts, central_sts, int_eoi; + uint32_t corr, fatal, non_fatal; + struct ras_err_data *err_data = (struct ras_err_data *)ras_error_status; + + global_sts = RREG32_PCIE(smnRAS_GLOBAL_STATUS_LO); + corr = REG_GET_FIELD(global_sts, RAS_GLOBAL_STATUS_LO, ParityErrCorr); + fatal = REG_GET_FIELD(global_sts, RAS_GLOBAL_STATUS_LO, ParityErrFatal); + non_fatal = REG_GET_FIELD(global_sts, RAS_GLOBAL_STATUS_LO, + ParityErrNonFatal); + + if (corr) + err_data->ce_count++; + if (fatal) + err_data->ue_count++; + + if (corr || fatal || non_fatal) { + central_sts = RREG32_PCIE(smnBIFL_RAS_CENTRAL_STATUS); + /* clear error status register */ + WREG32_PCIE(smnRAS_GLOBAL_STATUS_LO, global_sts); + + if (REG_GET_FIELD(central_sts, BIFL_RAS_CENTRAL_STATUS, + BIFL_RasContller_Intr_Recv)) { + /* clear interrupt status register */ + WREG32_PCIE(smnBIFL_RAS_CENTRAL_STATUS, central_sts); + int_eoi = RREG32_PCIE(smnIOHC_INTERRUPT_EOI); + int_eoi = REG_SET_FIELD(int_eoi, + IOHC_INTERRUPT_EOI, SMI_EOI, 1); + WREG32_PCIE(smnIOHC_INTERRUPT_EOI, int_eoi); + } + } } const struct amdgpu_nbio_funcs nbio_v7_4_funcs = {