drivers/gpu/drm/armada/armada_drm.h

   1 /*
   2  * Copyright (C) 2012 Russell King
   3  *
   4  * This program is free software; you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License version 2 as
   6  * published by the Free Software Foundation.
   7  */
   8 #ifndef ARMADA_DRM_H
   9 #define ARMADA_DRM_H
  10
  11 #include <linux/kfifo.h>
  12 #include <linux/io.h>
  13 #include <linux/workqueue.h>
  14 #include <drm/drmP.h>
  15
  16 struct armada_crtc;
  17 struct armada_gem_object;
  18 struct clk;
  19 struct drm_fb_helper;
  20
  21 static inline void
  22 armada_updatel(uint32_t val, uint32_t mask, void __iomem *ptr)
  23 {
  24         uint32_t ov, v;
  25
  26         ov = v = readl_relaxed(ptr);
  27         v = (v & ~mask) | val;
  28         if (ov != v)
  29                 writel_relaxed(v, ptr);
  30 }
  31
  32 static inline uint32_t armada_pitch(uint32_t width, uint32_t bpp)
  33 {
  34         uint32_t pitch = bpp != 4 ? width * ((bpp + 7) / 8) : width / 2;
  35
  36         /* 88AP510 spec recommends pitch be a multiple of 128 */
  37         return ALIGN(pitch, 128);
  38 }
  39
  40 struct armada_vbl_event {
  41         struct list_head        node;
  42         void                    *data;
  43         void                    (*fn)(struct armada_crtc *, void *);
  44 };
  45 void armada_drm_vbl_event_add(struct armada_crtc *,
  46         struct armada_vbl_event *);
  47 void armada_drm_vbl_event_remove(struct armada_crtc *,
  48         struct armada_vbl_event *);
  49 void armada_drm_vbl_event_remove_unlocked(struct armada_crtc *,
  50         struct armada_vbl_event *);
  51 #define armada_drm_vbl_event_init(_e, _f, _d) do {      \
  52         struct armada_vbl_event *__e = _e;              \
  53         INIT_LIST_HEAD(&__e->node);                     \
  54         __e->data = _d;                                 \
  55         __e->fn = _f;                                   \
  56 } while (0)
  57
  58
  59 struct armada_private;
  60
  61 struct armada_variant {
  62         bool has_spu_adv_reg;
  63         uint32_t spu_adv_reg;
  64         int (*init)(struct armada_crtc *, struct device *);
  65         int (*compute_clock)(struct armada_crtc *,
  66                              const struct drm_display_mode *,
  67                              uint32_t *);
  68 };
  69
  70 /* Variant ops */
  71 extern const struct armada_variant armada510_ops;
  72
  73 struct armada_private {
  74         struct work_struct      fb_unref_work;
  75         DECLARE_KFIFO(fb_unref, struct drm_framebuffer *, 8);
  76         struct drm_fb_helper    *fbdev;
  77         struct armada_crtc      *dcrtc[2];
  78         struct drm_mm           linear;
  79         struct drm_property     *csc_yuv_prop;
  80         struct drm_property     *csc_rgb_prop;
  81         struct drm_property     *colorkey_prop;
  82         struct drm_property     *colorkey_min_prop;
  83         struct drm_property     *colorkey_max_prop;
  84         struct drm_property     *colorkey_val_prop;
  85         struct drm_property     *colorkey_alpha_prop;
  86         struct drm_property     *colorkey_mode_prop;
  87         struct drm_property     *brightness_prop;
  88         struct drm_property     *contrast_prop;
  89         struct drm_property     *saturation_prop;
  90 #ifdef CONFIG_DEBUG_FS
  91         struct dentry           *de;
  92 #endif
  93 };
  94
  95 void __armada_drm_queue_unref_work(struct drm_device *,
  96         struct drm_framebuffer *);
  97 void armada_drm_queue_unref_work(struct drm_device *,
  98         struct drm_framebuffer *);
  99
 100 extern const struct drm_mode_config_funcs armada_drm_mode_config_funcs;
 101
 102 int armada_fbdev_init(struct drm_device *);
 103 void armada_fbdev_lastclose(struct drm_device *);
 104 void armada_fbdev_fini(struct drm_device *);
 105
 106 int armada_overlay_plane_create(struct drm_device *, unsigned long);
 107
 108 int armada_drm_debugfs_init(struct drm_minor *);
 109 void armada_drm_debugfs_cleanup(struct drm_minor *);
 110
 111 #endif