<html> <head> <meta http-equiv="Content-Type" content="text/html; charset=us-ascii"> <style type="text/css" style="display:none;"></style> </head> <body dir="ltr"> <div id="divtagdefaultwrapper" style="font-size:12pt;color:#000000;font-family:Calibri,Helvetica,sans-serif;" dir="ltr"> Series is: Reviewed-by: Alex Deucher <alexander.deucher@amd.com> </div> <hr style="display:inline-block;width:98%" tabindex="-1"> <div id="divRplyFwdMsg" dir="ltr">From: amd-gfx <amd-gfx-bounces@lists.freedesktop.org> on behalf of Evan Quan <evan.quan@amd.com> Sent: Thursday, January 24, 2019 5:59:18 AM To: amd-gfx@lists.freedesktop.org Cc: Quan, Evan Subject: [PATCH 2/2] drm/amd/powerplay: avoid frequent metrics table export <div> </div> </div> <div class="BodyFragment"> <div class="PlainText">That's unnecessary. Also it makes more sense to show all the clocks on one metrics table export. Change-Id: I6350911934dbd85dc701de17ccc0e9cbddda4648 Signed-off-by: Evan Quan <evan.quan@amd.com> --- .../drm/amd/powerplay/hwmgr/vega20_hwmgr.c | 43 +++++++++++++------ .../drm/amd/powerplay/hwmgr/vega20_hwmgr.h | 3 ++ 2 files changed, 33 insertions(+), 13 deletions(-) diff --git a/drivers/gpu/drm/amd/powerplay/hwmgr/vega20_hwmgr.c b/drivers/gpu/drm/amd/powerplay/hwmgr/vega20_hwmgr.c index 13f124125f5a..7b49a9a13a4a 100644 --- a/drivers/gpu/drm/amd/powerplay/hwmgr/vega20_hwmgr.c +++ b/drivers/gpu/drm/amd/powerplay/hwmgr/vega20_hwmgr.c @@ -1958,16 +1958,36 @@ static uint32_t vega20_dpm_get_mclk(struct pp_hwmgr *hwmgr, bool low) return (mem_clk * 100); } +static int vega20_get_metrics_table(struct pp_hwmgr *hwmgr, SmuMetrics_t *metrics_table) +{ + struct vega20_hwmgr *data = + (struct vega20_hwmgr *)(hwmgr->backend); + int ret = 0; + + if (!data->metrics_time || time_after(jiffies, data->metrics_time + HZ / 2)) { + ret = smum_smc_table_manager(hwmgr, (uint8_t *)metrics_table, + TABLE_SMU_METRICS, true); + if (ret) { + pr_info("Failed to export SMU metrics table!\n"); + return ret; + } + memcpy(&data->metrics_table, metrics_table, sizeof(SmuMetrics_t)); + data->metrics_time = jiffies; + } else + memcpy(metrics_table, &data->metrics_table, sizeof(SmuMetrics_t)); + + return ret; +} + static int vega20_get_gpu_power(struct pp_hwmgr *hwmgr, uint32_t *query) { int ret = 0; SmuMetrics_t metrics_table; - ret = smum_smc_table_manager(hwmgr, (uint8_t *)&metrics_table, TABLE_SMU_METRICS, true); - PP_ASSERT_WITH_CODE(!ret, - "Failed to export SMU METRICS table!", - return ret); + ret = vega20_get_metrics_table(hwmgr, &metrics_table); + if (ret) + return ret; *query = metrics_table.CurrSocketPower << 8; @@ -1998,10 +2018,9 @@ static int vega20_get_current_activity_percent(struct pp_hwmgr *hwmgr, int ret = 0; SmuMetrics_t metrics_table; - ret = smum_smc_table_manager(hwmgr, (uint8_t *)&metrics_table, TABLE_SMU_METRICS, true); - PP_ASSERT_WITH_CODE(!ret, - "Failed to export SMU METRICS table!", - return ret); + ret = vega20_get_metrics_table(hwmgr, &metrics_table); + if (ret) + return ret; *activity_percent = metrics_table.AverageGfxActivity; @@ -2019,11 +2038,9 @@ static int vega20_read_sensor(struct pp_hwmgr *hwmgr, int idx, switch (idx) { case AMDGPU_PP_SENSOR_GFX_SCLK: - ret = smum_smc_table_manager(hwmgr, (uint8_t *)&metrics_table, - TABLE_SMU_METRICS, true); - PP_ASSERT_WITH_CODE(!ret, - "Failed to export SMU METRICS table!", - return ret); + ret = vega20_get_metrics_table(hwmgr, &metrics_table); + if (ret) + return ret; *((uint32_t *)value) = metrics_table.AverageGfxclkFrequency * 100; *size = 4; diff --git a/drivers/gpu/drm/amd/powerplay/hwmgr/vega20_hwmgr.h b/drivers/gpu/drm/amd/powerplay/hwmgr/vega20_hwmgr.h index 25faaa5c5b10..37f5f5e657da 100644 --- a/drivers/gpu/drm/amd/powerplay/hwmgr/vega20_hwmgr.h +++ b/drivers/gpu/drm/amd/powerplay/hwmgr/vega20_hwmgr.h @@ -520,6 +520,9 @@ struct vega20_hwmgr { /* ---- Gfxoff ---- */ bool gfxoff_allowed; uint32_t counter_gfxoff; + + unsigned long metrics_time; + SmuMetrics_t metrics_table; }; #define VEGA20_DPM2_NEAR_TDP_DEC 10 -- 2.20.1 _______________________________________________ amd-gfx mailing list amd-gfx@lists.freedesktop.org <a href="https://lists.freedesktop.org/mailman/listinfo/amd-gfx">https://lists.freedesktop.org/mailman/listinfo/amd-gfx</a> </div> </div> </body> </html>