From 5a6adfa20b622a273205e33b20c12332aa7eb724 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 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 Cc: stable@vger.kernel.org --- 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 0aba8e9bc8a0..7c42ff670080 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; } -- 2.30.2