kernel/drivers/gpu/drm/msm/msm_gpu.h, branch linux-4.16.y

drm/msm: Add devfreq support for the GPU

2018-01-10T19:30:03Z

Add support for devfreq to dynamically control the GPU frequency. By default try to use the 'simple_ondemand' governor which can adjust the frequency based on GPU load. v2: Fix __aeabi_uldivmod issue from the 0 day bot and use devfreq_recommended_opp() as suggested by Rob. Signed-off-by: Jordan Crouse Signed-off-by: Rob Clark

drm/msm/gpu: Remove unused bus scaling code

2018-01-10T13:58:42Z

Remove the downstream bus scaling code. It isn't needed for for compatibility with a downstream or vendor kernel. Get it out of the way to clear space for devfreq support. Signed-off-by: Jordan Crouse Signed-off-by: Rob Clark

drm/msm: Make the value of RB_CNTL (almost) generic

2017-10-28T15:01:38Z

We use a global ringbuffer size and block size for all targets and at least for 5XX preemption we need to know the value the RB_CNTL in several locations so it makes sense to calculate it once and use it everywhere. The only monkey wrench is that we need to disable the RPTR shadow for A430 targets but that only needs to be done once and doesn't affect A5XX so we can or in the value at init time. Signed-off-by: Jordan Crouse Signed-off-by: Rob Clark

drm/msm: Support multiple ringbuffers

2017-10-28T15:01:36Z

Add the infrastructure to support the idea of multiple ringbuffers. Assign each ringbuffer an id and use that as an index for the various ring specific operations. The biggest delta is to support legacy fences. Each fence gets its own sequence number but the legacy functions expect to use a unique integer. To handle this we return a unique identifier for each submission but map it to a specific ring/sequence under the covers. Newer users use a dma_fence pointer anyway so they don't care about the actual sequence ID or ring. The actual mechanics for multiple ringbuffers are very target specific so this code just allows for the possibility but still only defines one ringbuffer for each target family. Signed-off-by: Jordan Crouse Signed-off-by: Rob Clark

drm/msm: Move memptrs to msm_gpu

2017-10-28T15:01:36Z

When we move to multiple ringbuffers we're going to store the data in the memptrs on a per-ring basis. In order to prepare for that move the current memptrs from the adreno namespace into msm_gpu. This is way cleaner and immediately lets us kill off some sub functions so there is much less cost later when we do move to per-ring structs. Signed-off-by: Jordan Crouse Signed-off-by: Rob Clark

drm/msm: Add per-instance submit queues

2017-10-28T15:01:35Z

Currently the behavior of a command stream is provided by the user application during submission and the application is expected to internally maintain the settings for each 'context' or 'rendering queue' and specify the correct ones. This works okay for simple cases but as applications become more complex we will want to set context specific flags and do various permission checks to allow certain contexts to enable additional privileges. Add kernel-side submit queues to be analogous to 'contexts' or 'rendering queues' on the application side. Each file descriptor instance will maintain its own list of queues. Queues cannot be shared between file descriptors. For backwards compatibility context id '0' is defined as a default context specifying no priority and no special flags. This is intended to be the usual configuration for 99% of applications so that a garden variety application can function correctly without creating a queue. Only those applications requiring the specific benefit of different queues need create one. Signed-off-by: Jordan Crouse Signed-off-by: Rob Clark

drm/msm: remove address-space id

2017-06-16T15:16:06Z

Now that the msm_gem supports an arbitrary number of vma's, we no longer need to assign an id (index) to each address space. So rip out the associated code. Signed-off-by: Rob Clark

drm/msm: Add a struct to pass configuration to msm_gpu_init()

2017-06-16T15:16:00Z

The amount of information that we need to pass into msm_gpu_init() is steadily increasing, so add a new struct to stabilize the function call and make it easier to add new configuration down the line. Signed-off-by: Jordan Crouse Signed-off-by: Rob Clark

drm/msm: Remove idle function hook

2017-06-16T15:15:47Z

There isn't any generic code that uses ->idle so remove it. Signed-off-by: Jordan Crouse Signed-off-by: Rob Clark

msm/drm: gpu: Dynamically locate the clocks from the device tree

2017-04-08T10:59:37Z

Instead of using a fixed list of clock names use the clock-names list in the device tree to discover and get the list of clocks that we need. Signed-off-by: Jordan Crouse Signed-off-by: Rob Clark