drm/radeon: A bit of cleanup work on radeon_freelist_get()
Fix the main loop to search all buffers before sleeping. Remove dead code Signed-off-by: Robert Noland <rnoland@2hip.net> Signed-off-by: Dave Airlie <airlied@redhat.com>
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1 changed files with 4 additions and 41 deletions
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@ -1941,8 +1941,8 @@ struct drm_buf *radeon_freelist_get(struct drm_device * dev)
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for (t = 0; t < dev_priv->usec_timeout; t++) {
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u32 done_age = GET_SCRATCH(dev_priv, 1);
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DRM_DEBUG("done_age = %d\n", done_age);
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for (i = start; i < dma->buf_count; i++) {
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buf = dma->buflist[i];
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for (i = 0; i < dma->buf_count; i++) {
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buf = dma->buflist[start];
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buf_priv = buf->dev_private;
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if (buf->file_priv == NULL || (buf->pending &&
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buf_priv->age <=
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@ -1951,7 +1951,8 @@ struct drm_buf *radeon_freelist_get(struct drm_device * dev)
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buf->pending = 0;
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return buf;
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}
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start = 0;
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if (++start >= dma->buf_count)
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start = 0;
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}
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if (t) {
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@ -1960,47 +1961,9 @@ struct drm_buf *radeon_freelist_get(struct drm_device * dev)
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}
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}
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DRM_DEBUG("returning NULL!\n");
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return NULL;
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}
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#if 0
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struct drm_buf *radeon_freelist_get(struct drm_device * dev)
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{
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struct drm_device_dma *dma = dev->dma;
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drm_radeon_private_t *dev_priv = dev->dev_private;
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drm_radeon_buf_priv_t *buf_priv;
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struct drm_buf *buf;
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int i, t;
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int start;
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u32 done_age;
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done_age = radeon_read_ring_rptr(dev_priv, RADEON_SCRATCHOFF(1));
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if (++dev_priv->last_buf >= dma->buf_count)
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dev_priv->last_buf = 0;
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start = dev_priv->last_buf;
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dev_priv->stats.freelist_loops++;
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for (t = 0; t < 2; t++) {
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for (i = start; i < dma->buf_count; i++) {
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buf = dma->buflist[i];
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buf_priv = buf->dev_private;
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if (buf->file_priv == 0 || (buf->pending &&
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buf_priv->age <=
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done_age)) {
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dev_priv->stats.requested_bufs++;
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buf->pending = 0;
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return buf;
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}
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}
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start = 0;
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}
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return NULL;
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}
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#endif
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void radeon_freelist_reset(struct drm_device * dev)
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{
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struct drm_device_dma *dma = dev->dma;
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