[PATCH] drm/amd/powerplay/smu7_hwmgr: replace blocking delay with non-blocking

Yrjan Skrimstad yrjan at skrimstad.net
Thu May 30 00:08:21 UTC 2019


This driver currently contains a repeated 500ms blocking delay call
which causes frequent major buffer underruns in PulseAudio. This patch
fixes this issue by replacing the blocking delay with a non-blocking
sleep call.

Signed-off-by: Yrjan Skrimstad <yrjan at skrimstad.net>
---
 drivers/gpu/drm/amd/powerplay/hwmgr/smu7_hwmgr.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/powerplay/hwmgr/smu7_hwmgr.c b/drivers/gpu/drm/amd/powerplay/hwmgr/smu7_hwmgr.c
index 048757e8f494..340afdbddc72 100644
--- a/drivers/gpu/drm/amd/powerplay/hwmgr/smu7_hwmgr.c
+++ b/drivers/gpu/drm/amd/powerplay/hwmgr/smu7_hwmgr.c
@@ -3494,7 +3494,7 @@ static int smu7_get_gpu_power(struct pp_hwmgr *hwmgr, u32 *query)
 							ixSMU_PM_STATUS_95, 0);
 
 	for (i = 0; i < 10; i++) {
-		mdelay(500);
+		msleep(500);
 		smum_send_msg_to_smc(hwmgr, PPSMC_MSG_PmStatusLogSample);
 		tmp = cgs_read_ind_register(hwmgr->device,
 						CGS_IND_REG__SMC,
-- 
2.20.1



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