A vt switch in stealth mode would take down the FIFO, and re-
initialize fence sequence numbers. This patch
saves the current state of the fence sequence when the FIFO is
disabled.
Signed-off-by: Thomas Hellstrom <thellst...@vmware.com>
---
drivers/gpu/drm/vmwgfx/vmwgfx_drv.c | 1 +
drivers/gpu/drm/vmwgfx/vmwgfx_fifo.c | 3 +--
2 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c
b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c
index 1db1ef3..70e4f5f 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c
@@ -217,6 +217,7 @@ static int vmw_driver_load(struct drm_device *dev, unsigned
long chipset)
dev_priv->dev = dev;
dev_priv->vmw_chipset = chipset;
+ dev_priv->last_read_sequence = (uint32_t) -100;
mutex_init(&dev_priv->hw_mutex);
mutex_init(&dev_priv->cmdbuf_mutex);
rwlock_init(&dev_priv->resource_lock);
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_fifo.c
b/drivers/gpu/drm/vmwgfx/vmwgfx_fifo.c
index 01feb48..f7d5f70 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_fifo.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_fifo.c
@@ -98,8 +98,7 @@ int vmw_fifo_init(struct vmw_private *dev_priv, struct
vmw_fifo_state *fifo)
(unsigned int) min,
(unsigned int) fifo->capabilities);
- dev_priv->fence_seq = (uint32_t) -100;
- dev_priv->last_read_sequence = (uint32_t) -100;
+ dev_priv->fence_seq = dev_priv->last_read_sequence;
iowrite32(dev_priv->last_read_sequence, fifo_mem + SVGA_FIFO_FENCE);
return vmw_fifo_send_fence(dev_priv, &dummy);
--
1.6.2.5
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