> -----Original Message----- > From: amd-gfx [mailto:amd-gfx-bounces at lists.freedesktop.org] On Behalf > Of Rex Zhu > Sent: Tuesday, January 10, 2017 8:28 AM > To: amd-gfx at lists.freedesktop.org > Cc: Zhu, Rex > Subject: [PATCH] drm/amd/powerplay: refine vce dpm update code on Cz. > > Program HardMin based on the vce_arbiter.ecclk > if ecclk is 0, disable ECLK DPM 0. Otherwise VCE > could hang if switching SCLK from DPM 0 to 6/7 > > Change-Id: Ied5b1630a0322678601cf5744bd1ba6b3b42ca23 > Signed-off-by: Rex Zhu <Rex.Zhu at amd.com> Acked-by: Alex Deucher <alexander.deucher at amd.com> > --- > drivers/gpu/drm/amd/powerplay/hwmgr/cz_hwmgr.c | 24 > ++++++++++++++++-------- > 1 file changed, 16 insertions(+), 8 deletions(-) > > diff --git a/drivers/gpu/drm/amd/powerplay/hwmgr/cz_hwmgr.c > b/drivers/gpu/drm/amd/powerplay/hwmgr/cz_hwmgr.c > index 0668b0b..a4cde3d 100644 > --- a/drivers/gpu/drm/amd/powerplay/hwmgr/cz_hwmgr.c > +++ b/drivers/gpu/drm/amd/powerplay/hwmgr/cz_hwmgr.c > @@ -1407,14 +1407,22 @@ int cz_dpm_update_vce_dpm(struct pp_hwmgr > *hwmgr) > cz_hwmgr- > >vce_dpm.hard_min_clk, > > PPSMC_MSG_SetEclkHardMin)); > } else { > - /*EPR# 419220 -HW limitation to to */ > - cz_hwmgr->vce_dpm.hard_min_clk = hwmgr- > >vce_arbiter.ecclk; > - smum_send_msg_to_smc_with_parameter(hwmgr- > >smumgr, > - PPSMC_MSG_SetEclkHardMin, > - cz_get_eclk_level(hwmgr, > - cz_hwmgr->vce_dpm.hard_min_clk, > - PPSMC_MSG_SetEclkHardMin)); > - > + /*Program HardMin based on the vce_arbiter.ecclk */ > + if (hwmgr->vce_arbiter.ecclk == 0) { > + smum_send_msg_to_smc_with_parameter(hwmgr- > >smumgr, > + PPSMC_MSG_SetEclkHardMin, 0); > + /* disable ECLK DPM 0. Otherwise VCE could hang if > + * switching SCLK from DPM 0 to 6/7 */ > + smum_send_msg_to_smc_with_parameter(hwmgr- > >smumgr, > + PPSMC_MSG_SetEclkSoftMin, 1); > + } else { > + cz_hwmgr->vce_dpm.hard_min_clk = hwmgr- > >vce_arbiter.ecclk; > + smum_send_msg_to_smc_with_parameter(hwmgr- > >smumgr, > + > PPSMC_MSG_SetEclkHardMin, > + cz_get_eclk_level(hwmgr, > + cz_hwmgr- > >vce_dpm.hard_min_clk, > + > PPSMC_MSG_SetEclkHardMin)); > + } > } > return 0; > } > -- > 1.9.1 > > _______________________________________________ > amd-gfx mailing list > amd-gfx at lists.freedesktop.org > https://lists.freedesktop.org/mailman/listinfo/amd-gfx
