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1. Initialize futex locks to zero on device init.
2. Remove some stray defines from via_drm.h
3. Prepare via_drm.h for drm client inclusion. The goal is to share a
common file with common definitions.
4. Sync shared / shared-core via_drm.h
5. Bump minor, because of the futex lock initialization.
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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.
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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.
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rudimentary command verifier for dma buffers. Changed the decoder futex
ioctl parameters. Bumped the via major version number.
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version number.
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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.
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2. Big change to the XvMC part of the SAREA. OpenGL clients will not suffer
from this, and via XvMC is still alpha. Needed to make future additions
to XvMC (More decoders and overlays) possible.
3. Bumped version number to 1.3.0.
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