[GitHub/mt8127/android_kernel_alcatel_ttab.git] / drivers / gpu / drm / vmwgfx / vmwgfx_ioctl.c

/**************************************************************************
 *
 * Copyright © 2009 VMware, Inc., Palo Alto, CA., USA
 * All Rights Reserved.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the
 * "Software"), to deal in the Software without restriction, including
 * without limitation the rights to use, copy, modify, merge, publish,
 * distribute, sub license, and/or sell copies of the Software, and to
 * permit persons to whom the Software is furnished to do so, subject to
 * the following conditions:
 *
 * The above copyright notice and this permission notice (including the
 * next paragraph) shall be included in all copies or substantial portions
 * of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
 * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
 * USE OR OTHER DEALINGS IN THE SOFTWARE.
 *
 **************************************************************************/

#include "vmwgfx_drv.h"
#include "vmwgfx_drm.h"

int vmw_getparam_ioctl(struct drm_device *dev, void *data,
		       struct drm_file *file_priv)
{
	struct vmw_private *dev_priv = vmw_priv(dev);
	struct drm_vmw_getparam_arg *param =
	    (struct drm_vmw_getparam_arg *)data;

	switch (param->param) {
	case DRM_VMW_PARAM_NUM_STREAMS:
		param->value = vmw_overlay_num_overlays(dev_priv);
		break;
	case DRM_VMW_PARAM_NUM_FREE_STREAMS:
		param->value = vmw_overlay_num_free_overlays(dev_priv);
		break;
	case DRM_VMW_PARAM_3D:
		param->value = vmw_fifo_have_3d(dev_priv) ? 1 : 0;
		break;
	case DRM_VMW_PARAM_FIFO_OFFSET:
		param->value = dev_priv->mmio_start;
		break;
	default:
		DRM_ERROR("Illegal vmwgfx get param request: %d\n",
			  param->param);
		return -EINVAL;
	}

	return 0;
}

int vmw_fifo_debug_ioctl(struct drm_device *dev, void *data,
			 struct drm_file *file_priv)
{
	struct vmw_private *dev_priv = vmw_priv(dev);
	struct vmw_fifo_state *fifo_state = &dev_priv->fifo;
	struct drm_vmw_fifo_debug_arg *arg =
	    (struct drm_vmw_fifo_debug_arg *)data;
	__le32 __user *buffer = (__le32 __user *)
	    (unsigned long)arg->debug_buffer;

	if (unlikely(fifo_state->last_buffer == NULL))
		return -EINVAL;

	if (arg->debug_buffer_size < fifo_state->last_data_size) {
		arg->used_size = arg->debug_buffer_size;
		arg->did_not_fit = 1;
	} else {
		arg->used_size = fifo_state->last_data_size;
		arg->did_not_fit = 0;
	}
	return copy_to_user(buffer, fifo_state->last_buffer, arg->used_size);
}
Commit	Line	Data
fb1d9738 JB	1	/**************************************************************************
	2	*
	3	* Copyright © 2009 VMware, Inc., Palo Alto, CA., USA
	4	* All Rights Reserved.
	5	*
	6	* Permission is hereby granted, free of charge, to any person obtaining a
	7	* copy of this software and associated documentation files (the
	8	* "Software"), to deal in the Software without restriction, including
	9	* without limitation the rights to use, copy, modify, merge, publish,
	10	* distribute, sub license, and/or sell copies of the Software, and to
	11	* permit persons to whom the Software is furnished to do so, subject to
	12	* the following conditions:
	13	*
	14	* The above copyright notice and this permission notice (including the
	15	* next paragraph) shall be included in all copies or substantial portions
	16	* of the Software.
	17	*
	18	* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
	19	* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
	20	* FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
	21	* THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
	22	* DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
	23	* OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
	24	* USE OR OTHER DEALINGS IN THE SOFTWARE.
	25	*
	26	**************************************************************************/
	27
	28	#include "vmwgfx_drv.h"
	29	#include "vmwgfx_drm.h"
	30
	31	int vmw_getparam_ioctl(struct drm_device dev, void data,
	32	struct drm_file *file_priv)
	33	{
	34	struct vmw_private *dev_priv = vmw_priv(dev);
	35	struct drm_vmw_getparam_arg *param =
	36	(struct drm_vmw_getparam_arg *)data;
	37
	38	switch (param->param) {
	39	case DRM_VMW_PARAM_NUM_STREAMS:
	40	param->value = vmw_overlay_num_overlays(dev_priv);
	41	break;
	42	case DRM_VMW_PARAM_NUM_FREE_STREAMS:
	43	param->value = vmw_overlay_num_free_overlays(dev_priv);
	44	break;
	45	case DRM_VMW_PARAM_3D:
8e19a951	46	param->value = vmw_fifo_have_3d(dev_priv) ? 1 : 0;
fb1d9738 JB	47	break;
	48	case DRM_VMW_PARAM_FIFO_OFFSET:
	49	param->value = dev_priv->mmio_start;
	50	break;
	51	default:
	52	DRM_ERROR("Illegal vmwgfx get param request: %d\n",
	53	param->param);
	54	return -EINVAL;
	55	}
	56
	57	return 0;
	58	}
	59
	60	int vmw_fifo_debug_ioctl(struct drm_device dev, void data,
	61	struct drm_file *file_priv)
	62	{
	63	struct vmw_private *dev_priv = vmw_priv(dev);
	64	struct vmw_fifo_state *fifo_state = &dev_priv->fifo;
	65	struct drm_vmw_fifo_debug_arg *arg =
	66	(struct drm_vmw_fifo_debug_arg *)data;
	67	__le32 __user buffer = (__le32 __user )
	68	(unsigned long)arg->debug_buffer;
	69
	70	if (unlikely(fifo_state->last_buffer == NULL))
	71	return -EINVAL;
	72
	73	if (arg->debug_buffer_size < fifo_state->last_data_size) {
	74	arg->used_size = arg->debug_buffer_size;
	75	arg->did_not_fit = 1;
	76	} else {
	77	arg->used_size = fifo_state->last_data_size;
	78	arg->did_not_fit = 0;
	79	}
	80	return copy_to_user(buffer, fifo_state->last_buffer, arg->used_size);
	81	}