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vmwgfx: Implement fence objects

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Will be needed for queries and drm event-driven throttling.

As a benefit, they help avoid stale user-space fence handles.

Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Reviewed-by: Jakob Bornecrantz <jakob@vmware.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Thomas Hellstrom
2011-09-01 20:18:44 +00:00
committed by Dave Airlie
parent 4f73a96bd7
commit ae2a104058
10 changed files with 1010 additions and 87 deletions
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16
drivers/gpu/drm/vmwgfx/vmwgfx_drv.h
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@@ -38,6 +38,7 @@
#include "ttm/ttm_lock.h"
#include "ttm/ttm_execbuf_util.h"
#include "ttm/ttm_module.h"
#include "vmwgfx_fence.h"
#define VMWGFX_DRIVER_DATE "20100927"
#define VMWGFX_DRIVER_MAJOR 1
@@ -53,6 +54,11 @@
#define VMW_PL_GMR TTM_PL_PRIV0
#define VMW_PL_FLAG_GMR TTM_PL_FLAG_PRIV0
#define VMW_RES_CONTEXT ttm_driver_type0
#define VMW_RES_SURFACE ttm_driver_type1
#define VMW_RES_STREAM ttm_driver_type2
#define VMW_RES_FENCE ttm_driver_type3
struct vmw_fpriv {
struct drm_master *locked_master;
struct ttm_object_file *tfile;
@@ -245,6 +251,7 @@ struct vmw_private {
atomic_t fifo_queue_waiters;
uint32_t last_read_seqno;
spinlock_t irq_lock;
struct vmw_fence_manager *fman;
/*
* Device state
@@ -456,8 +463,6 @@ extern int vmw_irq_postinstall(struct drm_device *dev);
extern void vmw_irq_uninstall(struct drm_device *dev);
extern bool vmw_seqno_passed(struct vmw_private *dev_priv,
uint32_t seqno);
extern int vmw_fence_wait_ioctl(struct drm_device *dev, void *data,
struct drm_file *file_priv);
extern int vmw_fallback_wait(struct vmw_private *dev_priv,
bool lazy,
bool fifo_idle,
@@ -466,7 +471,8 @@ extern int vmw_fallback_wait(struct vmw_private *dev_priv,
unsigned long timeout);
extern void vmw_update_seqno(struct vmw_private *dev_priv,
struct vmw_fifo_state *fifo_state);
extern void vmw_seqno_waiter_add(struct vmw_private *dev_priv);
extern void vmw_seqno_waiter_remove(struct vmw_private *dev_priv);
/**
* Rudimentary fence-like objects currently used only for throttling -
@@ -572,4 +578,8 @@ static inline struct vmw_dma_buffer *vmw_dmabuf_reference(struct vmw_dma_buffer
return NULL;
}
static inline struct ttm_mem_global *vmw_mem_glob(struct vmw_private *dev_priv)
{
return (struct ttm_mem_global *) dev_priv->mem_global_ref.object;
}
#endif