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path: root/shared/via_drv.h
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2004-12-13VIA drm updates:Thomas Hellstrom
1. Improved security check of AGP texture adresses. 2. Hopefully last fix of ring-buffer jump oddities. 3. Added ioctl to check available space and command regulator lag in ring-buffer. This is needed for 3D application responsiveness.
2004-12-03Added 3D functionality to the via command verifier. Modified the viaThomas Hellstrom
ring-buffer code somewhat to workaround hardware problems. Bumped via minor version number.
2004-11-27Reworked PCI MMIO command buffer parser, and imported code from the MesaThomas Hellstrom
driver. It can now handle the 3D OpenGL commands from the Mesa unichrome driver. Added vsync frequency detection support. This will be used in the future for XvMC and better frame timing. Bumped minor version number and driver date.
2004-10-30Some stabilizing work to the DMA ring-buffer code. Temporarily replaced theThomas Hellstrom
rewind jump with a reinitialization. This makes the code stable on CLE266 and KM400.
2004-10-09Lindent the via stuff so I can include it in kernelDave Airlie
2004-09-07Added IOCTL for writing 2D DMA command buffers over PCI. Bumped minorThomas Hellstrom
version number.
2004-08-24Merged drmfntbl-0-0-2Dave Airlie
2004-08-24This patch adds three new ioctl's to the VIA Unichrome/Pro DRM driver:Erdi Chen
DRM_IOCTL_VIA_DMA_INIT DRM_IOCTL_VIA_CMDBUFFER DRM_IOCTL_VIA_FLUSH The first ioctl sets up an area in AGP memory that will be used as the ring buffer. The second ioctl copies a command buffer from user space memory to the ring buffer. The third ioctl waits for engine idle until it returns. The motivation for this patch is to avoid the wait for engine idle call before each buffer flush in the current DRI driver. With this patch, the DRI driver can continue to flush its buffer as long as there is free space in the ring buffer. This patch adds an additional copy operation on the command buffer. This buffer copying is necessary to support multiple DRI clients rendering simultaneously. Otherwise, more CPU time will be spent in the busy loop waiting for engine idle between DRI context switch. Even in the single client case, the tradeoff is reasonable in comparision to the kernel call to check for free buffer space for the client to render directly to the ring buffer.
2004-08-17Merged drmfntbl-0-0-1Dave Airlie
2004-08-14Add a "dev" argument to DRIVER_CTX_[CD]TOR. This will be used in anEric Anholt
upcoming commit for the SiS driver.
2004-03-23Merged via-1-2-0Thomas Hellstrom