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Commit de227f5f authored by Dave Airlie's avatar Dave Airlie Committed by Dave Airlie
Browse files

drm: i915 patches from Tungsten Graphics 



Fix CMDBUFFER path, add heap destroy and flesh out sarea for rotation
(Tungsten Graphics)

From: Alan Hourihane <alanh@tungstengraphics.com>
Signed-off-by: default avatarDave Airlie <airlied@linux.ie>
parent 507d256b

drivers/char/drm/i915_dma.c

+30 −12
Original line number Diff line number Diff line
@@ -344,18 +344,20 @@ static int i915_emit_cmds(drm_device_t * dev, int __user * buffer, int dwords) 
	int i;

	RING_LOCALS;



	if ((dwords+1) * sizeof(int) >= dev_priv->ring.Size - 8)

		return DRM_ERR(EINVAL);



	BEGIN_LP_RING(((dwords+1)&~1));



	for (i = 0; i < dwords;) {

		int cmd, sz;



		if (DRM_COPY_FROM_USER_UNCHECKED(&cmd, &buffer[i], sizeof(cmd)))

			return DRM_ERR(EINVAL);



/* 		printk("%d/%d ", i, dwords); */



		if ((sz = validate_cmd(cmd)) == 0 || i + sz > dwords)

			return DRM_ERR(EINVAL);



		BEGIN_LP_RING(sz);

		OUT_RING(cmd);



		while (++i, --sz) {
@@ -365,9 +367,13 @@ static int i915_emit_cmds(drm_device_t * dev, int __user * buffer, int dwords) 
			}

			OUT_RING(cmd);

		}

		ADVANCE_LP_RING();

	}



	if (dwords & 1)

		OUT_RING(0);



	ADVANCE_LP_RING();



	return 0;

}
@@ -401,6 +407,21 @@ static int i915_emit_box(drm_device_t * dev, 
	return 0;

}



static void i915_emit_breadcrumb(drm_device_t *dev)

{

	drm_i915_private_t *dev_priv = dev->dev_private;

	RING_LOCALS;



	dev_priv->sarea_priv->last_enqueue = dev_priv->counter++;



	BEGIN_LP_RING(4);

	OUT_RING(CMD_STORE_DWORD_IDX);

	OUT_RING(20);

	OUT_RING(dev_priv->counter);

	OUT_RING(0);

	ADVANCE_LP_RING();

}



static int i915_dispatch_cmdbuffer(drm_device_t * dev,

				   drm_i915_cmdbuffer_t * cmd)

{
@@ -429,6 +450,7 @@ static int i915_dispatch_cmdbuffer(drm_device_t * dev, 
			return ret;

	}



	i915_emit_breadcrumb(dev);

	return 0;

}
@@ -475,12 +497,7 @@ static int i915_dispatch_batchbuffer(drm_device_t * dev, 


	dev_priv->sarea_priv->last_enqueue = dev_priv->counter++;



	BEGIN_LP_RING(4);

	OUT_RING(CMD_STORE_DWORD_IDX);

	OUT_RING(20);

	OUT_RING(dev_priv->counter);

	OUT_RING(0);

	ADVANCE_LP_RING();

	i915_emit_breadcrumb(dev);



	return 0;

}
@@ -657,7 +674,7 @@ static int i915_getparam(DRM_IOCTL_ARGS) 
		value = READ_BREADCRUMB(dev_priv);

		break;

	default:

		DRM_ERROR("Unkown parameter %d\n", param.param);

		DRM_ERROR("Unknown parameter %d\n", param.param);

		return DRM_ERR(EINVAL);

	}
@@ -742,7 +759,8 @@ drm_ioctl_desc_t i915_ioctls[] = { 
	[DRM_IOCTL_NR(DRM_I915_ALLOC)] = {i915_mem_alloc, DRM_AUTH},

	[DRM_IOCTL_NR(DRM_I915_FREE)] = {i915_mem_free, DRM_AUTH},

	[DRM_IOCTL_NR(DRM_I915_INIT_HEAP)] = {i915_mem_init_heap, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY},

	[DRM_IOCTL_NR(DRM_I915_CMDBUFFER)] = {i915_cmdbuffer, DRM_AUTH}

	[DRM_IOCTL_NR(DRM_I915_CMDBUFFER)] = {i915_cmdbuffer, DRM_AUTH},

	[DRM_IOCTL_NR(DRM_I915_DESTROY_HEAP)] = { i915_mem_destroy_heap, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY }

};



int i915_max_ioctl = DRM_ARRAY_SIZE(i915_ioctls);

drivers/char/drm/i915_drm.h

+33 −0
Original line number Diff line number Diff line
@@ -74,6 +74,30 @@ typedef struct _drm_i915_sarea { 
	int pf_active;

	int pf_current_page;	/* which buffer is being displayed? */

	int perf_boxes;		/* performance boxes to be displayed */

	int width, height;      /* screen size in pixels */



	drm_handle_t front_handle;

	int front_offset;

	int front_size;



	drm_handle_t back_handle;

	int back_offset;

	int back_size;



	drm_handle_t depth_handle;

	int depth_offset;

	int depth_size;



	drm_handle_t tex_handle;

	int tex_offset;

	int tex_size;

	int log_tex_granularity;

	int pitch;

	int rotation;           /* 0, 90, 180 or 270 */

	int rotated_offset;

	int rotated_size;

	int rotated_pitch;

	int virtualX, virtualY;

} drm_i915_sarea_t;



/* Flags for perf_boxes
@@ -99,6 +123,7 @@ typedef struct _drm_i915_sarea { 
#define DRM_I915_FREE		0x09

#define DRM_I915_INIT_HEAP	0x0a

#define DRM_I915_CMDBUFFER	0x0b

#define DRM_I915_DESTROY_HEAP	0x0c



#define DRM_IOCTL_I915_INIT		DRM_IOW( DRM_COMMAND_BASE + DRM_I915_INIT, drm_i915_init_t)

#define DRM_IOCTL_I915_FLUSH		DRM_IO ( DRM_COMMAND_BASE + DRM_I915_FLUSH)
@@ -112,6 +137,7 @@ typedef struct _drm_i915_sarea { 
#define DRM_IOCTL_I915_FREE             DRM_IOW( DRM_COMMAND_BASE + DRM_I915_FREE, drm_i915_mem_free_t)

#define DRM_IOCTL_I915_INIT_HEAP        DRM_IOW( DRM_COMMAND_BASE + DRM_I915_INIT_HEAP, drm_i915_mem_init_heap_t)

#define DRM_IOCTL_I915_CMDBUFFER	DRM_IOW( DRM_COMMAND_BASE + DRM_I915_CMDBUFFER, drm_i915_cmdbuffer_t)

#define DRM_IOCTL_I915_DESTROY_HEAP	DRM_IOW( DRM_COMMAND_BASE + DRM_I915_DESTROY_HEAP, drm_i915_mem_destroy_heap_t)



/* Allow drivers to submit batchbuffers directly to hardware, relying

 * on the security mechanisms provided by hardware.
@@ -191,4 +217,11 @@ typedef struct drm_i915_mem_init_heap { 
	int start;

} drm_i915_mem_init_heap_t;



/* Allow memory manager to be torn down and re-initialized (eg on

 * rotate):

 */

typedef struct drm_i915_mem_destroy_heap {

	int region;

} drm_i915_mem_destroy_heap_t;



#endif				/* _I915_DRM_H_ */

drivers/char/drm/i915_drv.h

+4 −2
Original line number Diff line number Diff line
@@ -37,16 +37,17 @@ 


#define DRIVER_NAME		"i915"

#define DRIVER_DESC		"Intel Graphics"

#define DRIVER_DATE		"20051209"

#define DRIVER_DATE		"20060119"



/* Interface history:

 *

 * 1.1: Original.

 * 1.2: Add Power Management

 * 1.3: Add vblank support

 * 1.4: Fix cmdbuffer path, add heap destroy

 */

#define DRIVER_MAJOR		1

#define DRIVER_MINOR		3

#define DRIVER_MINOR		4

#define DRIVER_PATCHLEVEL	0



typedef struct _drm_i915_ring_buffer {
@@ -123,6 +124,7 @@ extern void i915_driver_irq_uninstall(drm_device_t * dev); 
extern int i915_mem_alloc(DRM_IOCTL_ARGS);

extern int i915_mem_free(DRM_IOCTL_ARGS);

extern int i915_mem_init_heap(DRM_IOCTL_ARGS);

extern int i915_mem_destroy_heap(DRM_IOCTL_ARGS);

extern void i915_mem_takedown(struct mem_block **heap);

extern void i915_mem_release(drm_device_t * dev,

			     DRMFILE filp, struct mem_block *heap);

drivers/char/drm/i915_mem.c

+31 −0
Original line number Diff line number Diff line
@@ -365,3 +365,34 @@ int i915_mem_init_heap(DRM_IOCTL_ARGS) 


	return init_heap(heap, initheap.start, initheap.size);

}



int i915_mem_destroy_heap( DRM_IOCTL_ARGS )

{

	DRM_DEVICE;

	drm_i915_private_t *dev_priv = dev->dev_private;

	drm_i915_mem_destroy_heap_t destroyheap;

	struct mem_block **heap;



	if ( !dev_priv ) {

		DRM_ERROR( "%s called with no initialization\n", __FUNCTION__ );

		return DRM_ERR(EINVAL);

	}



	DRM_COPY_FROM_USER_IOCTL( destroyheap, (drm_i915_mem_destroy_heap_t *)data,

				  sizeof(destroyheap) );



	heap = get_heap( dev_priv, destroyheap.region );

	if (!heap) {

		DRM_ERROR("get_heap failed");

		return DRM_ERR(EFAULT);

	}

	

	if (!*heap) {

		DRM_ERROR("heap not initialized?");

		return DRM_ERR(EFAULT);

	}



	i915_mem_takedown( heap );

	return 0;

}