devgpu.c File Reference

#include <Fs/Dev/devgpu.h>
#include <Fs/Dev/devfs.h>
#include <Fs/Dev/devhw.h>
#include <Fs/vfs.h>
#include <Cred/group.h>
#include <Mm/kmalloc.h>
#include <Mm/pmmngr.h>
#include <Mm/vmmngr.h>
#include <Hal/AA64/aa64lowlevel.h>
#include <Drivers/uart.h>
#include <aucon.h>
#include <gpusrv.h>
#include <gpudamage.h>
#include <proctoken.h>
#include <string.h>

Include dependency graph for devgpu.c:

Macros
#define	GPU_PHYS_MASK   0x0000FFFFFFFFF000ULL

Functions
void	AuGpuProxyDamage (int x, int y, int width, int height)
void	AuGpuProxyOwnerGone (AuProcess *proc, void *hw_device)
void	AuGpuProxyInitialize (void)

Variables
AuConsole *	aucon

Macro Definition Documentation

GPU_PHYS_MASK

#define GPU_PHYS_MASK   0x0000FFFFFFFFF000ULL

Function Documentation

AuGpuProxyDamage()

void AuGpuProxyDamage	(	int	x,
		int	y,
		int	width,
		int	height
	)

AuGpuProxyInitialize()

void AuGpuProxyInitialize

(

void

)

AuGpuProxyOwnerGone()

void AuGpuProxyOwnerGone	(	AuProcess *	proc,
		void *	hw_device
	)

Variable Documentation

aucon

AuConsole* aucon

extern

devgpu.c – thin kernel proxy for the user-space virtio-GPU server.

The server owns the PCI function through /dev/hwdev. This node keeps the compositor-facing framebuffer stable and performs the one safety-critical bridge operation: copying a bounded damage rectangle into DMA memory that belongs to the server's exact GPU capability. The kernel never submits a virtio command and never waits for the server.