<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"> <p style="margin-top:0;margin-bottom:0">Reviewed-by: Alex Deucher <alexander.deucher@amd.com><br> </p> </div> <hr style="display:inline-block;width:98%" tabindex="-1"> <div id="divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" style="font-size:11pt" color="#000000"><b>From:</b> amd-gfx <amd-gfx-bounces@lists.freedesktop.org> on behalf of Rex Zhu <Rex.Zhu@amd.com><br> <b>Sent:</b> Friday, March 30, 2018 3:33:26 AM<br> <b>To:</b> amd-gfx@lists.freedesktop.org<br> <b>Cc:</b> Zhu, Rex<br> <b>Subject:</b> [PATCH] drm/amd/pp: Clean register first to avoid read original value</font> <div> </div> </div> <div class="BodyFragment"><font size="2"><span style="font-size:11pt;"> <div class="PlainText">Signed-off-by: Rex Zhu <Rex.Zhu@amd.com><br> ---<br> drivers/gpu/drm/amd/powerplay/hwmgr/smu7_hwmgr.c | 13 +++++++++++++<br> 1 file changed, 13 insertions(+)<br> <br> diff --git a/drivers/gpu/drm/amd/powerplay/hwmgr/smu7_hwmgr.c b/drivers/gpu/drm/amd/powerplay/hwmgr/smu7_hwmgr.c<br> index aaa9f5b..38cf3a1 100644<br> --- a/drivers/gpu/drm/amd/powerplay/hwmgr/smu7_hwmgr.c<br> +++ b/drivers/gpu/drm/amd/powerplay/hwmgr/smu7_hwmgr.c<br> @@ -3368,6 +3368,19 @@ static int smu7_get_gpu_power(struct pp_hwmgr *hwmgr,<br> "Failed to start pm status log!",<br> return -1);<br> <br> + cgs_write_ind_register(hwmgr->device,<br> + CGS_IND_REG__SMC,<br> + ixSMU_PM_STATUS_40, 0);<br> + cgs_write_ind_register(hwmgr->device,<br> + CGS_IND_REG__SMC,<br> + ixSMU_PM_STATUS_49, 0);<br> + cgs_write_ind_register(hwmgr->device,<br> + CGS_IND_REG__SMC,<br> + ixSMU_PM_STATUS_94, 0);<br> + cgs_write_ind_register(hwmgr->device,<br> + CGS_IND_REG__SMC,<br> + ixSMU_PM_STATUS_95, 0);<br> +<br> /* Sampling period from 50ms to 4sec */<br> msleep_interruptible(200);<br> <br> -- <br> 1.9.1<br> <br> _______________________________________________<br> amd-gfx mailing list<br> amd-gfx@lists.freedesktop.org<br> <a href="https://lists.freedesktop.org/mailman/listinfo/amd-gfx">https://lists.freedesktop.org/mailman/listinfo/amd-gfx</a><br> </div> </span></font></div> </body> </html>