vmwgfx_fifo.c File Reference

#include "vmwgfx_drv.h"
#include <drm/drmP.h>
#include <drm/ttm/ttm_placement.h>

Go to the source code of this file.

Functions
bool	vmw_fifo_have_3d (struct vmw_private *dev_priv)
bool	vmw_fifo_have_pitchlock (struct vmw_private *dev_priv)
int	vmw_fifo_init (struct vmw_private *dev_priv, struct vmw_fifo_state *fifo)
void	vmw_fifo_ping_host (struct vmw_private *dev_priv, uint32_t reason)
void	vmw_fifo_release (struct vmw_private *dev_priv, struct vmw_fifo_state *fifo)
void *	vmw_fifo_reserve (struct vmw_private *dev_priv, uint32_t bytes)
void	vmw_fifo_commit (struct vmw_private *dev_priv, uint32_t bytes)
int	vmw_fifo_send_fence (struct vmw_private *dev_priv, uint32_t *seqno)
int	vmw_fifo_emit_dummy_query (struct vmw_private *dev_priv, uint32_t cid)

Function Documentation

void vmw_fifo_commit	(	struct vmw_private *	dev_priv,
		uint32_t	bytes
	)

Definition at line 422 of file vmwgfx_fifo.c.

int vmw_fifo_emit_dummy_query	(	struct vmw_private *	dev_priv,
		uint32_t	cid
	)

vmw_fifo_emit_dummy_query - emits a dummy query to the fifo.

: The device private structure. : The hardware context id used for the query.

This function is used to emit a dummy occlusion query with no primitives rendered between query begin and query end. It's used to provide a query barrier, in order to know that when this query is finished, all preceding queries are also finished.

A Query results structure should have been initialized at the start of the dev_priv->dummy_query_bo buffer object. And that buffer object must also be either reserved or pinned when this function is called.

Returns -ENOMEM on failure to reserve fifo space.

Definition at line 530 of file vmwgfx_fifo.c.

bool vmw_fifo_have_3d

(

struct vmw_private *

dev_priv

)

Definition at line 32 of file vmwgfx_fifo.c.

bool vmw_fifo_have_pitchlock

(

struct vmw_private *

dev_priv

)

Definition at line 64 of file vmwgfx_fifo.c.

int vmw_fifo_init	(	struct vmw_private *	dev_priv,
		struct vmw_fifo_state *	fifo
	)

Fifo utilities - vmwgfx_fifo.c

Definition at line 79 of file vmwgfx_fifo.c.

void vmw_fifo_ping_host	(	struct vmw_private *	dev_priv,
		uint32_t	reason
	)

Definition at line 146 of file vmwgfx_fifo.c.

void vmw_fifo_release	(	struct vmw_private *	dev_priv,
		struct vmw_fifo_state *	fifo
	)

Definition at line 160 of file vmwgfx_fifo.c.

void* vmw_fifo_reserve	(	struct vmw_private *	dev_priv,
		uint32_t	bytes
	)

Reserve number of bytes in the fifo.

This function will return NULL (error) on two conditions: If it timeouts waiting for fifo space, or if is larger than the available fifo space.

Returns: Pointer to the fifo, or null on error (possible hardware hang).

Definition at line 298 of file vmwgfx_fifo.c.

int vmw_fifo_send_fence	(	struct vmw_private *	dev_priv,
		uint32_t *	seqno
	)

Definition at line 468 of file vmwgfx_fifo.c.