kernel/linux.git/drivers/gpu/nova-core/gsp/boot.rs, branch v7.1

gpu: nova-core: fix missing colon in SEC2 boot debug message

2026-04-06T01:06:39+00:00

The SEC2 mailbox debug output formats MBOX1 without a colon separator, producing "MBOX10xdead" instead of "MBOX1: 0xdead". The GSP debug message a few lines above uses the correct format. Fixes: 5949d419c193 ("gpu: nova-core: gsp: Boot GSP") Signed-off-by: David Carlier Link: https://patch.msgid.link/20260331103744.605683-1-devnexen@gmail.com Signed-off-by: Alexandre Courbot

gpu: nova-core: convert PFB registers to kernel register macro

2026-03-26T06:08:27+00:00

Convert all PFB registers to use the kernel's register macro and update the code accordingly. NV_PGSP_QUEUE_HEAD was somehow caught in the PFB section, so move it to its own section and convert it as well. Reviewed-by: Eliot Courtney Reviewed-by: Gary Guo Acked-by: Danilo Krummrich Link: https://patch.msgid.link/20260325-b4-nova-register-v4-4-bdf172f0f6ca@nvidia.com Signed-off-by: Alexandre Courbot

gpu: nova-core: convert PBUS registers to kernel register macro

2026-03-26T06:08:27+00:00

Convert all PBUS registers to use the kernel's register macro and update the code accordingly. Reviewed-by: Eliot Courtney Reviewed-by: Gary Guo Acked-by: Danilo Krummrich Link: https://patch.msgid.link/20260325-b4-nova-register-v4-3-bdf172f0f6ca@nvidia.com Signed-off-by: Alexandre Courbot

gpu: nova-core: use Coherent::init to initialize GspFwWprMeta

2026-03-23T21:36:00+00:00

Convert wpr_meta to use Coherent::init() and simplify the initialization. It also avoids a separate initialization of GspFwWprMeta on the stack. Reviewed-by: Gary Guo Reviewed-by: Alexandre Courbot Link: https://patch.msgid.link/20260320194626.36263-7-dakr@kernel.org Signed-off-by: Danilo Krummrich

gpu: nova-core: gsp: add mutex locking to Cmdq

2026-03-18T12:53:14+00:00

Wrap `Cmdq`'s mutable state in a new struct `CmdqInner` and wrap that in a Mutex. This lets `Cmdq` methods take &self instead of &mut self, which lets required commands be sent e.g. while unloading the driver. The mutex is held over both send and receive in `send_command` to make sure that it doesn't get the reply of some other command that could have been sent just beforehand. Reviewed-by: Zhi Wang Tested-by: Zhi Wang Signed-off-by: Eliot Courtney Link: https://patch.msgid.link/20260318-cmdq-locking-v5-5-18b37e3f9069@nvidia.com Signed-off-by: Alexandre Courbot

gpu: nova-core: gsp: add reply/no-reply info to `CommandToGsp`

2026-03-18T12:53:14+00:00

Add type infrastructure to know what reply is expected from each `CommandToGsp`. Uses a marker type `NoReply` which does not implement `MessageFromGsp` to mark commands which don't expect a response. Update `send_command` to wait for a reply and add `send_command_no_wait` which sends a command that has no reply, without blocking. This prepares for adding locking to the queue. Tested-by: Zhi Wang Reviewed-by: Gary Guo Signed-off-by: Eliot Courtney Link: https://patch.msgid.link/20260318-cmdq-locking-v5-3-18b37e3f9069@nvidia.com Signed-off-by: Alexandre Courbot

Merge tag 'v7.0-rc4' into drm-rust-next

2026-03-15T21:58:48+00:00

We need the latest fixes from drm-rust-fixes in drm-rust-next as well to build on top of. Signed-off-by: Danilo Krummrich

gpu: nova-core: add FbRange.len() and use it in boot.rs

2026-03-10T11:13:46+00:00

A tiny simplification: now that FbLayout uses its own specific FbRange type, add an FbRange.len() method, and use that to (very slightly) simplify the calculation of Frts::frts_size initialization. Suggested-by: Alexandre Courbot Reviewed-by: Gary Guo Signed-off-by: John Hubbard Link: https://patch.msgid.link/20260310021125.117855-3-jhubbard@nvidia.com Signed-off-by: Alexandre Courbot

gpu: nova-core: use the Generic Bootloader to boot FWSEC on Turing

2026-03-09T01:39:13+00:00

On Turing and GA100, a new firmware image called the Generic Bootloader (gen_bootloader) must be used to load FWSEC into Falcon memory. The driver loads the generic bootloader into Falcon IMEM, passes a descriptor that points to FWSEC using DMEM, and then boots the generic bootloader. The bootloader will then load FWSEC into IMEM and boot it. Signed-off-by: Timur Tabi Co-developed-by: Alexandre Courbot Signed-off-by: Alexandre Courbot Acked-by: Danilo Krummrich Link: https://patch.msgid.link/20260306-turing_prep-v11-12-8f0042c5d026@nvidia.com

gpu: nova-core: create falcon firmware DMA objects lazily

2026-03-09T01:35:37+00:00

When DMA was the only loading option for falcon firmwares, we decided to store them in DMA objects as soon as they were loaded from disk and patch them in-place to avoid having to do an extra copy. This decision complicates the PIO loading patch considerably, and actually does not even stand on its own when put into perspective with the fact that it requires 8 unsafe statements in the code that wouldn't exist if we stored the firmware into a `KVVec` and copied it into a DMA object at the last minute. The cost of the copy is, as can be expected, imperceptible at runtime. Thus, switch to a lazy DMA object creation model and simplify our code a bit. This will also have the nice side-effect of being more fit for PIO loading. Reviewed-by: Eliot Courtney Acked-by: Danilo Krummrich Link: https://patch.msgid.link/20260306-turing_prep-v11-1-8f0042c5d026@nvidia.com [acourbot@nvidia.com: add TODO item to switch back to a coherent allocation when it becomes convenient to do so.] Signed-off-by: Alexandre Courbot