From 863a016a0c51f92e970a220296ed404c011b1e81 Mon Sep 17 00:00:00 2001 From: Alex Deucher Date: Tue, 22 Sep 2015 10:06:45 -0400 Subject: [PATCH] drm/amdgpu: Fix max_vblank_count value for current display engines MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit commit 5a6adfa20b622a273205e33b20c12332aa7eb724 upstream. The value was much too low, which could cause the userspace visible vblank counter to move backwards when the hardware counter wrapped around. Ported from radeon commit: b0b9bb4dd51f396dcf843831905f729e74b0c8c0 Reviewed-by: Christian König Reviewed-by: Jammy Zhou Signed-off-by: Alex Deucher Signed-off-by: Greg Kroah-Hartman --- drivers/gpu/drm/amd/amdgpu/amdgpu_irq.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_irq.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_irq.c index b4d36f0f2153c..c098d762089ca 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_irq.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_irq.c @@ -140,7 +140,7 @@ void amdgpu_irq_preinstall(struct drm_device *dev) */ int amdgpu_irq_postinstall(struct drm_device *dev) { - dev->max_vblank_count = 0x001fffff; + dev->max_vblank_count = 0x00ffffff; return 0; } -- 2.47.2