bb112b14af
This patch add the necessary functions to map/unmap GEM backing memory to the kernel's virtual address space. Signed-off-by: Haneen Mohammed <hamohammed.sa@gmail.com> Signed-off-by: Sean Paul <seanpaul@chromium.org> Link: https://patchwork.freedesktop.org/patch/msgid/4b6563ae4f4337a5fd51f872424addf64e8d59a6.1532446182.git.hamohammed.sa@gmail.com
88 lines
2.1 KiB
C
88 lines
2.1 KiB
C
#ifndef _VKMS_DRV_H_
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#define _VKMS_DRV_H_
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#include <drm/drmP.h>
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#include <drm/drm.h>
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#include <drm/drm_gem.h>
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#include <drm/drm_encoder.h>
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#include <linux/hrtimer.h>
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#define XRES_MIN 32
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#define YRES_MIN 32
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#define XRES_DEF 1024
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#define YRES_DEF 768
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#define XRES_MAX 8192
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#define YRES_MAX 8192
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static const u32 vkms_formats[] = {
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DRM_FORMAT_XRGB8888,
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};
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struct vkms_output {
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struct drm_crtc crtc;
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struct drm_encoder encoder;
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struct drm_connector connector;
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struct hrtimer vblank_hrtimer;
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ktime_t period_ns;
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struct drm_pending_vblank_event *event;
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};
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struct vkms_device {
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struct drm_device drm;
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struct platform_device *platform;
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struct vkms_output output;
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};
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struct vkms_gem_object {
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struct drm_gem_object gem;
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struct mutex pages_lock; /* Page lock used in page fault handler */
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struct page **pages;
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unsigned int vmap_count;
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void *vaddr;
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};
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#define drm_crtc_to_vkms_output(target) \
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container_of(target, struct vkms_output, crtc)
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#define drm_device_to_vkms_device(target) \
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container_of(target, struct vkms_device, drm)
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#define drm_gem_to_vkms_gem(target)\
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container_of(target, struct vkms_gem_object, gem)
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/* CRTC */
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int vkms_crtc_init(struct drm_device *dev, struct drm_crtc *crtc,
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struct drm_plane *primary, struct drm_plane *cursor);
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bool vkms_get_vblank_timestamp(struct drm_device *dev, unsigned int pipe,
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int *max_error, ktime_t *vblank_time,
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bool in_vblank_irq);
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int vkms_output_init(struct vkms_device *vkmsdev);
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struct drm_plane *vkms_plane_init(struct vkms_device *vkmsdev);
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/* Gem stuff */
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struct drm_gem_object *vkms_gem_create(struct drm_device *dev,
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struct drm_file *file,
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u32 *handle,
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u64 size);
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int vkms_gem_fault(struct vm_fault *vmf);
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int vkms_dumb_create(struct drm_file *file, struct drm_device *dev,
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struct drm_mode_create_dumb *args);
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int vkms_dumb_map(struct drm_file *file, struct drm_device *dev,
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u32 handle, u64 *offset);
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void vkms_gem_free_object(struct drm_gem_object *obj);
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int vkms_gem_vmap(struct drm_gem_object *obj);
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void vkms_gem_vunmap(struct drm_gem_object *obj);
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#endif /* _VKMS_DRV_H_ */
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