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From 70ca0bbe4defb86434f0f5d1173ba9ef57cbf8b9 Mon Sep 17 00:00:00 2001
From: Andrey Grodzovsky <Andrey.Grodzovsky@amd.com>
Date: Tue, 29 Mar 2016 11:17:58 -0400
Subject: [PATCH 0986/1110] drm/amd/dal: Switch from busy wait to sleep when
waiting for pflip comletion.
Signed-off-by: Andrey Grodzovsky <Andrey.Grodzovsky@amd.com>
Acked-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
---
drivers/gpu/drm/amd/dal/amdgpu_dm/amdgpu_dm_types.c | 4 +---
1 file changed, 1 insertion(+), 3 deletions(-)
diff --git a/drivers/gpu/drm/amd/dal/amdgpu_dm/amdgpu_dm_types.c b/drivers/gpu/drm/amd/dal/amdgpu_dm/amdgpu_dm_types.c
index e418422..f79cbee 100644
--- a/drivers/gpu/drm/amd/dal/amdgpu_dm/amdgpu_dm_types.c
+++ b/drivers/gpu/drm/amd/dal/amdgpu_dm/amdgpu_dm_types.c
@@ -2077,9 +2077,7 @@ static void manage_dm_interrupts(
irq_type);
} else {
while (acrtc->pflip_status != AMDGPU_FLIP_NONE) {
- /* Spin Wait*/
-
- /* Todo: Use periodic polling rather than busy wait */
+ msleep(1);
}
amdgpu_irq_put(
--
2.7.4
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