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drm/vmwgfx: Add kernel throttling support. Bump minor.

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The throttle_us member in the execbuf argument is now honored.
If the member is 0, no waiting for lag will occur, which
guarantees backwards compatibility with well-behaved clients.

Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Thomas Hellstrom
2010-05-28 11:21:57 +02:00
committed by Dave Airlie
parent 04e9e94dba
commit 1925d45658
6 changed files with 227 additions and 6 deletions
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9
drivers/gpu/drm/vmwgfx/vmwgfx_execbuf.c
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@@ -669,6 +669,15 @@ int vmw_execbuf_ioctl(struct drm_device *dev, void *data,
goto out_err;
vmw_apply_relocations(sw_context);
if (arg->throttle_us) {
ret = vmw_wait_lag(dev_priv, &dev_priv->fifo.fence_queue,
arg->throttle_us);
if (unlikely(ret != 0))
goto out_err;
}
vmw_fifo_commit(dev_priv, arg->command_size);
ret = vmw_fifo_send_fence(dev_priv, &sequence);