<html> <head> <meta http-equiv="Content-Type" content="text/html; charset=us-ascii"> <style type="text/css" style="display:none;"> P {margin-top:0;margin-bottom:0;} </style> </head> <body dir="ltr"> [AMD Public Use] <div> <div style="font-family: Calibri, Arial, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);"> Series is:</div> <div style="font-family: Calibri, Arial, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);"> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> </div> <div id="appendonsend"></div> <hr style="display:inline-block;width:98%" tabindex="-1"> <div id="divRplyFwdMsg" dir="ltr">From: Hawking Zhang <Hawking.Zhang@amd.com> Sent: Monday, March 2, 2020 5:33 AM To: amd-gfx@lists.freedesktop.org <amd-gfx@lists.freedesktop.org>; Clements, John <John.Clements@amd.com>; Li, Dennis <Dennis.Li@amd.com>; Chen, Guchun <Guchun.Chen@amd.com>; Zhou1, Tao <Tao.Zhou1@amd.com>; Deucher, Alexander <Alexander.Deucher@amd.com> Cc: Zhang, Hawking <Hawking.Zhang@amd.com> Subject: [PATCH 4/4] drm/amdgpu: add reset_ras_error_count function for HDP <div> </div> </div> <div class="BodyFragment"> <div class="PlainText">HDP ras error counters are dirty ones after cold reboot Read operation is needed to reset them to 0 Signed-off-by: Hawking Zhang <Hawking.Zhang@amd.com> --- drivers/gpu/drm/amd/amdgpu/amdgpu.h | 1 + drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c | 1 - drivers/gpu/drm/amd/amdgpu/soc15.c | 14 ++++++++++++++ 3 files changed, 15 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu.h b/drivers/gpu/drm/amd/amdgpu/amdgpu.h index a58b0cf9da51..b735e20888a7 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu.h +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu.h @@ -595,6 +595,7 @@ struct amdgpu_asic_funcs { /* invalidate hdp read cache */ void (*invalidate_hdp)(struct amdgpu_device *adev, struct amdgpu_ring *ring); + void (*reset_hdp_ras_error_count)(struct amdgpu_device *adev); /* check if the asic needs a full reset of if soft reset will work */ bool (*need_full_reset)(struct amdgpu_device *adev); /* initialize doorbell layout for specific asic*/ diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c index b746f26f933c..efd52bcf8785 100644 --- a/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c +++ b/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c @@ -4149,7 +4149,6 @@ static const struct soc15_reg_entry gfx_v9_0_edc_counter_regs[] = { { SOC15_REG_ENTRY(GC, 0, mmTCC_EDC_CNT2), 0, 1, 16}, { SOC15_REG_ENTRY(GC, 0, mmTCA_EDC_CNT), 0, 1, 2}, { SOC15_REG_ENTRY(GC, 0, mmSQC_EDC_CNT3), 0, 4, 6}, - { SOC15_REG_ENTRY(HDP, 0, mmHDP_EDC_CNT), 0, 1, 1}, }; static int gfx_v9_0_do_edc_gds_workarounds(struct amdgpu_device *adev) diff --git a/drivers/gpu/drm/amd/amdgpu/soc15.c b/drivers/gpu/drm/amd/amdgpu/soc15.c index 4aa5b9c8e43b..6b717691d554 100644 --- a/drivers/gpu/drm/amd/amdgpu/soc15.c +++ b/drivers/gpu/drm/amd/amdgpu/soc15.c @@ -827,6 +827,15 @@ static bool soc15_need_full_reset(struct amdgpu_device *adev) /* change this when we implement soft reset */ return true; } + +static void vega20_reset_hdp_ras_error_count(struct amdgpu_device *adev) +{ + if (!amdgpu_ras_is_supported(adev, AMDGPU_RAS_BLOCK__HDP)) + return; + /*read back hdp ras counter to reset it to 0 */ + RREG32_SOC15(HDP, 0, mmHDP_EDC_CNT); +} + static void soc15_get_pcie_usage(struct amdgpu_device *adev, uint64_t *count0, uint64_t *count1) { @@ -994,6 +1003,7 @@ static const struct amdgpu_asic_funcs vega20_asic_funcs = .get_config_memsize = &soc15_get_config_memsize, .flush_hdp = &soc15_flush_hdp, .invalidate_hdp = &soc15_invalidate_hdp, + .reset_hdp_ras_error_count = &vega20_reset_hdp_ras_error_count, .need_full_reset = &soc15_need_full_reset, .init_doorbell_index = &vega20_doorbell_index_init, .get_pcie_usage = &vega20_get_pcie_usage, @@ -1239,6 +1249,10 @@ static int soc15_common_late_init(void *handle) if (amdgpu_sriov_vf(adev)) xgpu_ai_mailbox_get_irq(adev); + if (adev->asic_funcs && + adev->asic_funcs->reset_hdp_ras_error_count) + adev->asic_funcs->reset_hdp_ras_error_count(adev); + if (adev->nbio.funcs->ras_late_init) r = adev->nbio.funcs->ras_late_init(adev); -- 2.17.1 </div> </div> </div> </body> </html>