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authorDave Airlie <airlied@redhat.com>2008-11-03 09:32:39 +1000
committerDave Airlie <airlied@redhat.com>2008-11-03 09:32:39 +1000
commit1c817cc3fc09abe93539413130de3875e4c7eafe (patch)
treef9e5c30339939c51cc5bf9676a78b4aa4029fc69 /linux-core/radeon_fence.c
parent653b16f2dd32b5fdbd5f97277edc1c6df66755a9 (diff)
radeon: pull bus master enable into its own function
Diffstat (limited to 'linux-core/radeon_fence.c')
0 files changed, 0 insertions, 0 deletions
generated by cgit v1.2.3 (git 2.25.1) at 2025-11-18 00:08:02 +0000
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/*
 * Copyright 2006 Tungsten Graphics Inc., Bismarck, ND., 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 AUTHORS OR COPYRIGHT HOLDERS AND/OR THEIR 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.
 */
/*
 * Authors: Thomas Hellström <thomas-at-tungstengraphics-dot-com>
 */

#include "drmP.h"
#include "via_drm.h"
#include "via_drv.h"
#include "drm_sman.h"

#define VIA_MM_ALIGN_SHIFT 4
#define VIA_MM_ALIGN_MASK ( (1 << VIA_MM_ALIGN_SHIFT) - 1)

int via_agp_init(DRM_IOCTL_ARGS)
{
	DRM_DEVICE;
	drm_via_agp_t agp;
	drm_via_private_t *dev_priv = (drm_via_private_t *) dev->dev_private;
	int ret;

	DRM_COPY_FROM_USER_IOCTL(agp, (drm_via_agp_t __user *) data,
				 sizeof(agp));
	mutex_lock(&dev->struct_mutex);
	ret = drm_sman_set_range(&dev_priv->sman, VIA_MEM_AGP, 0,
				 agp.size >> VIA_MM_ALIGN_SHIFT);

	if (ret) {
		DRM_ERROR("AGP memory manager initialisation error\n");
		mutex_unlock(&dev->struct_mutex);
		return ret;
	}

	dev_priv->agp_initialized = 1;
	dev_priv->agp_offset = agp.offset;
	mutex_unlock(&dev->struct_mutex);

	DRM_DEBUG("offset = %u, size = %u", agp.offset, agp.size);
	return 0;
}

int via_fb_init(DRM_IOCTL_ARGS)
{
	DRM_DEVICE;
	drm_via_fb_t fb;
	drm_via_private_t *dev_priv = (drm_via_private_t *) dev->dev_private;
	int ret;

	DRM_COPY_FROM_USER_IOCTL(fb, (drm_via_fb_t __user *) data, sizeof(fb));

	mutex_lock(&dev->struct_mutex);
	ret = drm_sman_set_range(&dev_priv->sman, VIA_MEM_VIDEO, 0,
				 fb.size >> VIA_MM_ALIGN_SHIFT);

	if (ret) {
		DRM_ERROR("VRAM memory manager initialisation error\n");
		mutex_unlock(&dev->struct_mutex);
		return ret;
	}

	dev_priv->vram_initialized = 1;
	dev_priv->vram_offset = fb.offset;