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added 'nx_drv_init' to SysABI

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antifallobst 2023-05-29 18:39:52 +02:00
parent 763349e2f4
commit 860fb468a9
1 changed files with 6 additions and 5 deletions
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9
kernel/sysabi.md
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@ -55,10 +55,11 @@ The following calls should be implemented to some degree in noxos 1.0.
## Drivers
| ID | Name | Description | Arg1 | Arg2 | Arg3 | Arg4 | Result | Status |
|--------|--------------------------------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|------|------|-------|------|--------|--------|
| 0x0301 | `nx_drv_register` | Registers the executable at the _n_ bytes long _path_ as driver with the configuration _conf_. The format of the conf struct can be found below. | path | len | *conf | | status | N/A |
| 0x0302 | `nx_drv_create_command_buffer` | This has to be called from a driver. Registers _addr_ as command queue buffer with the length _len_, which has to be greater or equal 16384. If _addr_ is NULL or not aligned to 32 bytes or _len_ is less than 16384, the kernel will map a command queue buffer into the drivers address space, which is of length _len_ but at least 16384. The address to the registered buffer will be returned. | addr | len | | | addr | N/A |
| 0x0303 | `nx_drv_flush_command_buffer` | This has to be called from a driver. Flushes the command queue buffer at _addr_. | addr | | | | status | N/A |
|--------|--------------------------------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|-------|------|------|------|--------|--------|
| 0x0301 | `nx_drv_register` | Registers the executable at the file descriptor _fd_ as driver. | fd | | | | status | N/A |
| 0x0302 | `nx_drv_init` | This has to be called from a driver. This can only be called once per driver. Initializes the calling driver process with the configuration _conf_. The format of the conf struct can be found below. | *conf | | | | status | N/A |
| 0x0303 | `nx_drv_create_command_buffer` | This has to be called from a driver. Registers _addr_ as command queue buffer with the length _len_, which has to be greater or equal 16384. If _addr_ is NULL or not aligned to 32 bytes or _len_ is less than 16384, the kernel will map a command queue buffer into the drivers address space, which is of length _len_ but at least 16384. The address to the registered buffer will be returned. | addr | len | | | addr | N/A |
| 0x0304 | `nx_drv_flush_command_buffer` | This has to be called from a driver. Flushes the command queue buffer at _addr_. | addr | | | | status | N/A |
## Kernel
These syscalls can only be called from the kernel process.