linux/drivers/gpu/host1x/dev.h, branch v4.9

gpu: host1x: Use unsigned int consistently for IDs

2016-06-23T09:59:24Z

IDs can never be negative so use unsigned int. In some instances an explicitly sized type (such as u32) was used for no particular reason, so turn those into unsigned int as well for consistency. Signed-off-by: Thierry Reding

gpu: host1x: Consistently use unsigned int for counts

2016-06-23T09:59:23Z

The number of channels, syncpoints, bases and mlocks can never be negative, so use unsigned int instead of int. Also make loop variables the same type for consistency. Signed-off-by: Thierry Reding

gpu: host1x: hw: intr_hw: Remove create_workqueue

2016-06-23T09:59:22Z

System workqueues have been able to handle high level of concurrency for a long time now and there's no reason to use dedicated workqueues just to gain concurrency. Since the workqueue host->intr_wq is involved in sync point interrupts, and sync point wait and is not being used on a memory reclaim path, dedicated host->intr_wq has been replaced with the use of system_wq. Unlike a dedicated per-cpu workqueue created with create_workqueue(), system_wq allows multiple work items to overlap executions even on the same CPU; however, a per-cpu workqueue doesn't have any CPU locality or global ordering guarantees unless the target CPU is explicitly specified and thus the increase of local concurrency shouldn't make any difference. cancel_work_sync() has been used in _host1x_free_syncpt_irq() to ensure that no work is pending by the time exit path runs. Signed-off-by: Bhaktipriya Shridhar Acked-by: Tejun Heo Signed-off-by: Thierry Reding

gpu: host1x: Set DMA mask

2016-03-04T15:24:56Z

The default DMA mask covers a 32 bits address range, but host1x devices can address a larger range on TK1 and TX1. Set the DMA mask to the range addressable when we use the IOMMU to prevent the use of bounce buffers. Signed-off-by: Alexandre Courbot Signed-off-by: Thierry Reding

gpu: host1x: Add MIPI pad calibration support

2013-12-19T08:29:43Z

This driver adds support to perform calibration of the MIPI pads for CSI and DSI. Signed-off-by: Thierry Reding

gpu: host1x: Add syncpoint base support

2013-10-31T08:55:48Z

This patch adds support for hardware syncpoint bases. This creates a simple mechanism to stall the command FIFO until an operation is completed. Signed-off-by: Arto Merilainen Reviewed-by: Terje Bergstrom Signed-off-by: Thierry Reding

drm/tegra: Move subdevice infrastructure to host1x

2013-10-31T08:55:33Z

The Tegra DRM driver currently uses some infrastructure to defer the DRM core initialization until all required devices have registered. The same infrastructure can potentially be used by any other driver that requires more than a single sub-device of the host1x module. Make the infrastructure more generic and keep only the DRM specific code in the DRM part of the driver. Eventually this will make it easy to move the DRM driver part back to the DRM subsystem. Signed-off-by: Thierry Reding

gpu: host1x: Sort drivers by probe order

2013-09-03T08:10:12Z

External driver declarations are sorted by probe order for consistency. Signed-off-by: Thierry Reding

gpu: host1x: Rework CPU syncpoint increment

2013-06-22T10:43:55Z

This patch merges host1x_syncpt_cpu_incr to host1x_syncpt_incr() as they are in practise doing the same thing. host1x_syncpt_incr() is also modified to return error codes. User space interface is modified accordingly to pass return values. Signed-off-by: Arto Merilainen Acked-By: Terje Bergstrom Signed-off-by: Thierry Reding

gpu: host1x: Remove second host1x driver

2013-04-22T10:39:59Z

Remove second host1x driver, and bind tegra-drm to the new host1x driver. The logic to parse device tree and track clients is moved to drm.c. Signed-off-by: Arto Merilainen Signed-off-by: Terje Bergstrom Reviewed-by: Thierry Reding Tested-by: Thierry Reding Tested-by: Erik Faye-Lund Signed-off-by: Thierry Reding