2c871127e9
the purpose of this patch is to consider IOMMU support in the future. EXYNOS4 SoC supports IOMMU also so the address for DMA could be physical address with IOMMU or device address with IOMMU. Signed-off-by: Inki Dae <inki.dae@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
64 lines
2.4 KiB
C
64 lines
2.4 KiB
C
/* exynos_drm_crtc.h
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*
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* Copyright (c) 2011 Samsung Electronics Co., Ltd.
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* Authors:
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* Inki Dae <inki.dae@samsung.com>
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* Joonyoung Shim <jy0922.shim@samsung.com>
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* Seung-Woo Kim <sw0312.kim@samsung.com>
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice (including the next
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* paragraph) shall be included in all copies or substantial portions of the
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* Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
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* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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* OTHER DEALINGS IN THE SOFTWARE.
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*/
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#ifndef _EXYNOS_DRM_CRTC_H_
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#define _EXYNOS_DRM_CRTC_H_
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struct exynos_drm_overlay *get_exynos_drm_overlay(struct drm_device *dev,
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struct drm_crtc *crtc);
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int exynos_drm_crtc_create(struct drm_device *dev, unsigned int nr);
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int exynos_drm_crtc_enable_vblank(struct drm_device *dev, int crtc);
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void exynos_drm_crtc_disable_vblank(struct drm_device *dev, int crtc);
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/*
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* Exynos specific crtc postion structure.
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*
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* @fb_x: offset x on a framebuffer to be displyed
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* - the unit is screen coordinates.
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* @fb_y: offset y on a framebuffer to be displayed
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* - the unit is screen coordinates.
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* @crtc_x: offset x on hardware screen.
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* @crtc_y: offset y on hardware screen.
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* @crtc_w: width of hardware screen.
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* @crtc_h: height of hardware screen.
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*/
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struct exynos_drm_crtc_pos {
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unsigned int fb_x;
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unsigned int fb_y;
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unsigned int crtc_x;
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unsigned int crtc_y;
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unsigned int crtc_w;
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unsigned int crtc_h;
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};
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int exynos_drm_overlay_update(struct exynos_drm_overlay *overlay,
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struct drm_framebuffer *fb,
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struct drm_display_mode *mode,
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struct exynos_drm_crtc_pos *pos);
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#endif
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