Re: [PATCH v4 0/2] drm/rockchip: try to fix vblank hang resulting from iommu irq change

2018-06-18 Thread Heiko Stuebner
Am Dienstag, 12. Juni 2018, 15:20:26 CEST schrieb Heiko Stuebner: > This still tries to address the hang seen by Ezequiel Garcia on rk3288. > > As Tomasz noted, trying to count enablement can run into concurrency > issues, so instead we'll just check if the vop is runtime-enabled > to see if it co

[PATCH v4 0/2] drm/rockchip: try to fix vblank hang resulting from iommu irq change

2018-06-12 Thread Heiko Stuebner
This still tries to address the hang seen by Ezequiel Garcia on rk3288. As Tomasz noted, trying to count enablement can run into concurrency issues, so instead we'll just check if the vop is runtime-enabled to see if it could be the source of the irq and then just do our own clk_enable in the isr