linux-dev/drivers/gpu/host1x/hw, branch master

gpu: host1x: Initialize syncval in channel_submit()

2022-07-08T15:35:19Z

During the refactoring of channel_submit(), assignment of syncval was moved but it is also used in channel_submit(). Add this assignment back to channel_submit() as well. Signed-off-by: Mikko Perttunen Signed-off-by: Thierry Reding

gpu: host1x: Add MLOCK release code on Tegra234

2022-07-08T14:27:53Z

With the full-featured opcode sequence using MLOCKs, we need to also unlock those MLOCKs in the event of a timeout. However, it turns out that on Tegra186/Tegra194, by default, we don't need to do this; furthermore, on Tegra234 it is much simpler to do; so only implement this on Tegra234 for the time being. Signed-off-by: Mikko Perttunen Signed-off-by: Thierry Reding

gpu: host1x: Rewrite job opcode sequence

2022-07-08T14:27:53Z

For new (Tegra186+) SoCs, use a new ('full-featured') job opcode sequence that is compatible with virtualization. In particular, the Host1x hardware in Tegra234 is more strict regarding the sequence, requiring ACQUIRE_MLOCK-SETCLASS-SETSTREAMID opcodes to occur in that sequence without gaps (except for SETPAYLOAD), so let's do it properly in one go now. Signed-off-by: Mikko Perttunen Signed-off-by: Thierry Reding

gpu: host1x: Tegra234 device data and headers

2022-07-08T14:27:52Z

Add device data and chip headers for Tegra234. Signed-off-by: Mikko Perttunen Signed-off-by: Thierry Reding

gpu: host1x: Program interrupt destinations on Tegra234

2022-07-08T14:27:52Z

On Tegra234, each Host1x VM has 8 interrupt lines. Each syncpoint can be configured with which interrupt line should be used for threshold interrupt, allowing for load balancing. For now, to keep backwards compatibility, just set all syncpoints to the first interrupt. Signed-off-by: Mikko Perttunen Signed-off-by: Thierry Reding

gpu: host1x: Deduplicate hardware headers

2022-07-08T14:27:52Z

Host1x class information and opcodes are unchanged or backwards compatible across SoCs so let's not duplicate them for each one but have them in a shared header file. At the same time, add opcode functions for acquire/release_mlock. Signed-off-by: Mikko Perttunen Signed-off-by: Thierry Reding

gpu: host1x: Program context stream ID on submission

2022-07-08T14:27:52Z

Add code to do stream ID switching at the beginning of a job. The stream ID is switched to the stream ID specified by the context passed in the job structure. Before switching the stream ID, an OP_DONE wait is done on the channel's engine to ensure that there is no residual ongoing work that might do DMA using the new stream ID. Signed-off-by: Mikko Perttunen Signed-off-by: Thierry Reding

gpu: host1x: Add initial runtime PM and OPP support

2021-12-16T13:07:07Z

Add runtime PM and OPP support to the Host1x driver. For the starter we will keep host1x always-on because dynamic power management require a major refactoring of the driver code since lot's of code paths are missing the RPM handling and we're going to remove some of these paths in the future. Reviewed-by: Ulf Hansson Tested-by: Peter Geis # Ouya T30 Tested-by: Paul Fertser # PAZ00 T20 Tested-by: Nicolas Chauvet # PAZ00 T20 and TK1 T124 Tested-by: Matt Merhar # Ouya T30 Signed-off-by: Dmitry Osipenko Signed-off-by: Thierry Reding

gpu: host1x: debug: Dump DMASTART and DMAEND register

2021-08-13T16:23:32Z

Show the values of the DMASTART and DMAEND registers when dumping status to help with failure analysis. Signed-off-by: Thierry Reding

gpu: host1x: debug: Dump only relevant parts of CDMA push buffer

2021-08-13T16:23:32Z

Dumping the full CDMA push buffer takes a long time and isn't very useful since most of the contents are not relevant. Instead only show the CDMA push buffer entries associated with current jobs. While at it, tweak the indentation a bit to make the output more readable. Signed-off-by: Thierry Reding