drivers/gpu/drm/msm/msm_drv.h

   1 /*
   2  * Copyright (C) 2013 Red Hat
   3  * Author: Rob Clark <robdclark@gmail.com>
   4  *
   5  * This program is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 as published by
   7  * the Free Software Foundation.
   8  *
   9  * This program is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  12  * more details.
  13  *
  14  * You should have received a copy of the GNU General Public License along with
  15  * this program.  If not, see <http://www.gnu.org/licenses/>.
  16  */
  17
  18 #ifndef __MSM_DRV_H__
  19 #define __MSM_DRV_H__
  20
  21 #include <linux/kernel.h>
  22 #include <linux/clk.h>
  23 #include <linux/cpufreq.h>
  24 #include <linux/module.h>
  25 #include <linux/component.h>
  26 #include <linux/platform_device.h>
  27 #include <linux/pm.h>
  28 #include <linux/pm_runtime.h>
  29 #include <linux/slab.h>
  30 #include <linux/list.h>
  31 #include <linux/iommu.h>
  32 #include <linux/types.h>
  33 #include <asm/sizes.h>
  34
  35
  36 #if defined(CONFIG_COMPILE_TEST) && !defined(CONFIG_ARCH_MSM)
  37 /* stubs we need for compile-test: */
  38 static inline struct device *msm_iommu_get_ctx(const char *ctx_name)
  39 {
  40         return NULL;
  41 }
  42 #endif
  43
  44 #ifndef CONFIG_OF
  45 #include <mach/board.h>
  46 #include <mach/socinfo.h>
  47 #include <mach/iommu_domains.h>
  48 #endif
  49
  50 #include <drm/drmP.h>
  51 #include <drm/drm_crtc_helper.h>
  52 #include <drm/drm_fb_helper.h>
  53 #include <drm/msm_drm.h>
  54
  55 struct msm_kms;
  56 struct msm_gpu;
  57 struct msm_mmu;
  58
  59 #define NUM_DOMAINS 2    /* one for KMS, then one per gpu core (?) */
  60
  61 struct msm_file_private {
  62         /* currently we don't do anything useful with this.. but when
  63          * per-context address spaces are supported we'd keep track of
  64          * the context's page-tables here.
  65          */
  66         int dummy;
  67 };
  68
  69 struct msm_drm_private {
  70
  71         struct msm_kms *kms;
  72
  73         /* subordinate devices, if present: */
  74         struct platform_device *hdmi_pdev, *gpu_pdev;
  75
  76         /* when we have more than one 'msm_gpu' these need to be an array: */
  77         struct msm_gpu *gpu;
  78         struct msm_file_private *lastctx;
  79
  80         struct drm_fb_helper *fbdev;
  81
  82         uint32_t next_fence, completed_fence;
  83         wait_queue_head_t fence_event;
  84
  85         /* list of GEM objects: */
  86         struct list_head inactive_list;
  87
  88         struct workqueue_struct *wq;
  89
  90         /* callbacks deferred until bo is inactive: */
  91         struct list_head fence_cbs;
  92
  93         /* registered MMUs: */
  94         unsigned int num_mmus;
  95         struct msm_mmu *mmus[NUM_DOMAINS];
  96
  97         unsigned int num_planes;
  98         struct drm_plane *planes[8];
  99
 100         unsigned int num_crtcs;
 101         struct drm_crtc *crtcs[8];
 102
 103         unsigned int num_encoders;
 104         struct drm_encoder *encoders[8];
 105
 106         unsigned int num_bridges;
 107         struct drm_bridge *bridges[8];
 108
 109         unsigned int num_connectors;
 110         struct drm_connector *connectors[8];
 111
 112         /* VRAM carveout, used when no IOMMU: */
 113         struct {
 114                 unsigned long size;
 115                 dma_addr_t paddr;
 116                 /* NOTE: mm managed at the page level, size is in # of pages
 117                  * and position mm_node->start is in # of pages:
 118                  */
 119                 struct drm_mm mm;
 120         } vram;
 121 };
 122
 123 struct msm_format {
 124         uint32_t pixel_format;
 125 };
 126
 127 /* callback from wq once fence has passed: */
 128 struct msm_fence_cb {
 129         struct work_struct work;
 130         uint32_t fence;
 131         void (*func)(struct msm_fence_cb *cb);
 132 };
 133
 134 void __msm_fence_worker(struct work_struct *work);
 135
 136 #define INIT_FENCE_CB(_cb, _func)  do {                     \
 137                 INIT_WORK(&(_cb)->work, __msm_fence_worker); \
 138                 (_cb)->func = _func;                         \
 139         } while (0)
 140
 141 int msm_register_mmu(struct drm_device *dev, struct msm_mmu *mmu);
 142
 143 int msm_wait_fence_interruptable(struct drm_device *dev, uint32_t fence,
 144                 struct timespec *timeout);
 145 void msm_update_fence(struct drm_device *dev, uint32_t fence);
 146
 147 int msm_ioctl_gem_submit(struct drm_device *dev, void *data,
 148                 struct drm_file *file);
 149
 150 int msm_gem_mmap(struct file *filp, struct vm_area_struct *vma);
 151 int msm_gem_fault(struct vm_area_struct *vma, struct vm_fault *vmf);
 152 uint64_t msm_gem_mmap_offset(struct drm_gem_object *obj);
 153 int msm_gem_get_iova_locked(struct drm_gem_object *obj, int id,
 154                 uint32_t *iova);
 155 int msm_gem_get_iova(struct drm_gem_object *obj, int id, uint32_t *iova);
 156 struct page **msm_gem_get_pages(struct drm_gem_object *obj);
 157 void msm_gem_put_pages(struct drm_gem_object *obj);
 158 void msm_gem_put_iova(struct drm_gem_object *obj, int id);
 159 int msm_gem_dumb_create(struct drm_file *file, struct drm_device *dev,
 160                 struct drm_mode_create_dumb *args);
 161 int msm_gem_dumb_map_offset(struct drm_file *file, struct drm_device *dev,
 162                 uint32_t handle, uint64_t *offset);
 163 struct sg_table *msm_gem_prime_get_sg_table(struct drm_gem_object *obj);
 164 void *msm_gem_prime_vmap(struct drm_gem_object *obj);
 165 void msm_gem_prime_vunmap(struct drm_gem_object *obj, void *vaddr);
 166 struct drm_gem_object *msm_gem_prime_import_sg_table(struct drm_device *dev,
 167                 size_t size, struct sg_table *sg);
 168 int msm_gem_prime_pin(struct drm_gem_object *obj);
 169 void msm_gem_prime_unpin(struct drm_gem_object *obj);
 170 void *msm_gem_vaddr_locked(struct drm_gem_object *obj);
 171 void *msm_gem_vaddr(struct drm_gem_object *obj);
 172 int msm_gem_queue_inactive_cb(struct drm_gem_object *obj,
 173                 struct msm_fence_cb *cb);
 174 void msm_gem_move_to_active(struct drm_gem_object *obj,
 175                 struct msm_gpu *gpu, bool write, uint32_t fence);
 176 void msm_gem_move_to_inactive(struct drm_gem_object *obj);
 177 int msm_gem_cpu_prep(struct drm_gem_object *obj, uint32_t op,
 178                 struct timespec *timeout);
 179 int msm_gem_cpu_fini(struct drm_gem_object *obj);
 180 void msm_gem_free_object(struct drm_gem_object *obj);
 181 int msm_gem_new_handle(struct drm_device *dev, struct drm_file *file,
 182                 uint32_t size, uint32_t flags, uint32_t *handle);
 183 struct drm_gem_object *msm_gem_new(struct drm_device *dev,
 184                 uint32_t size, uint32_t flags);
 185 struct drm_gem_object *msm_gem_import(struct drm_device *dev,
 186                 uint32_t size, struct sg_table *sgt);
 187
 188 struct drm_gem_object *msm_framebuffer_bo(struct drm_framebuffer *fb, int plane);
 189 const struct msm_format *msm_framebuffer_format(struct drm_framebuffer *fb);
 190 struct drm_framebuffer *msm_framebuffer_init(struct drm_device *dev,
 191                 struct drm_mode_fb_cmd2 *mode_cmd, struct drm_gem_object **bos);
 192 struct drm_framebuffer *msm_framebuffer_create(struct drm_device *dev,
 193                 struct drm_file *file, struct drm_mode_fb_cmd2 *mode_cmd);
 194
 195 struct drm_fb_helper *msm_fbdev_init(struct drm_device *dev);
 196
 197 struct hdmi;
 198 struct hdmi *hdmi_init(struct drm_device *dev, struct drm_encoder *encoder);
 199 irqreturn_t hdmi_irq(int irq, void *dev_id);
 200 void __init hdmi_register(void);
 201 void __exit hdmi_unregister(void);
 202
 203 #ifdef CONFIG_DEBUG_FS
 204 void msm_gem_describe(struct drm_gem_object *obj, struct seq_file *m);
 205 void msm_gem_describe_objects(struct list_head *list, struct seq_file *m);
 206 void msm_framebuffer_describe(struct drm_framebuffer *fb, struct seq_file *m);
 207 #endif
 208
 209 void __iomem *msm_ioremap(struct platform_device *pdev, const char *name,
 210                 const char *dbgname);
 211 void msm_writel(u32 data, void __iomem *addr);
 212 u32 msm_readl(const void __iomem *addr);
 213
 214 #define DBG(fmt, ...) DRM_DEBUG(fmt"\n", ##__VA_ARGS__)
 215 #define VERB(fmt, ...) if (0) DRM_DEBUG(fmt"\n", ##__VA_ARGS__)
 216
 217 static inline bool fence_completed(struct drm_device *dev, uint32_t fence)
 218 {
 219         struct msm_drm_private *priv = dev->dev_private;
 220         return priv->completed_fence >= fence;
 221 }
 222
 223 static inline int align_pitch(int width, int bpp)
 224 {
 225         int bytespp = (bpp + 7) / 8;
 226         /* adreno needs pitch aligned to 32 pixels: */
 227         return bytespp * ALIGN(width, 32);
 228 }
 229
 230 /* for the generated headers: */
 231 #define INVALID_IDX(idx) ({BUG(); 0;})
 232 #define fui(x)                ({BUG(); 0;})
 233 #define util_float_to_half(x) ({BUG(); 0;})
 234
 235
 236 #define FIELD(val, name) (((val) & name ## __MASK) >> name ## __SHIFT)
 237
 238 /* for conditionally setting boolean flag(s): */
 239 #define COND(bool, val) ((bool) ? (val) : 0)
 240
 241
 242 #endif /* __MSM_DRV_H__ */