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 #ifndef CONFIG_OF
  36 #include <mach/board.h>
  37 #include <mach/socinfo.h>
  38 #include <mach/iommu_domains.h>
  39 #endif
  40
  41 #include <drm/drmP.h>
  42 #include <drm/drm_atomic.h>
  43 #include <drm/drm_atomic_helper.h>
  44 #include <drm/drm_crtc_helper.h>
  45 #include <drm/drm_plane_helper.h>
  46 #include <drm/drm_fb_helper.h>
  47 #include <drm/msm_drm.h>
  48 #include <drm/drm_gem.h>
  49
  50 struct msm_kms;
  51 struct msm_gpu;
  52 struct msm_mmu;
  53 struct msm_rd_state;
  54 struct msm_perf_state;
  55 struct msm_gem_submit;
  56
  57 #define NUM_DOMAINS 2    /* one for KMS, then one per gpu core (?) */
  58
  59 struct msm_file_private {
  60         /* currently we don't do anything useful with this.. but when
  61          * per-context address spaces are supported we'd keep track of
  62          * the context's page-tables here.
  63          */
  64         int dummy;
  65 };
  66
  67 struct msm_drm_private {
  68
  69         struct msm_kms *kms;
  70
  71         /* subordinate devices, if present: */
  72         struct platform_device *gpu_pdev;
  73
  74         /* possibly this should be in the kms component, but it is
  75          * shared by both mdp4 and mdp5..
  76          */
  77         struct hdmi *hdmi;
  78
  79         /* when we have more than one 'msm_gpu' these need to be an array: */
  80         struct msm_gpu *gpu;
  81         struct msm_file_private *lastctx;
  82
  83         struct drm_fb_helper *fbdev;
  84
  85         uint32_t next_fence, completed_fence;
  86         wait_queue_head_t fence_event;
  87
  88         struct msm_rd_state *rd;
  89         struct msm_perf_state *perf;
  90
  91         /* list of GEM objects: */
  92         struct list_head inactive_list;
  93
  94         struct workqueue_struct *wq;
  95
  96         /* callbacks deferred until bo is inactive: */
  97         struct list_head fence_cbs;
  98
  99         /* crtcs pending async atomic updates: */
 100         uint32_t pending_crtcs;
 101         wait_queue_head_t pending_crtcs_event;
 102
 103         /* registered MMUs: */
 104         unsigned int num_mmus;
 105         struct msm_mmu *mmus[NUM_DOMAINS];
 106
 107         unsigned int num_planes;
 108         struct drm_plane *planes[8];
 109
 110         unsigned int num_crtcs;
 111         struct drm_crtc *crtcs[8];
 112
 113         unsigned int num_encoders;
 114         struct drm_encoder *encoders[8];
 115
 116         unsigned int num_bridges;
 117         struct drm_bridge *bridges[8];
 118
 119         unsigned int num_connectors;
 120         struct drm_connector *connectors[8];
 121
 122         /* VRAM carveout, used when no IOMMU: */
 123         struct {
 124                 unsigned long size;
 125                 dma_addr_t paddr;
 126                 /* NOTE: mm managed at the page level, size is in # of pages
 127                  * and position mm_node->start is in # of pages:
 128                  */
 129                 struct drm_mm mm;
 130         } vram;
 131 };
 132
 133 struct msm_format {
 134         uint32_t pixel_format;
 135 };
 136
 137 /* callback from wq once fence has passed: */
 138 struct msm_fence_cb {
 139         struct work_struct work;
 140         uint32_t fence;
 141         void (*func)(struct msm_fence_cb *cb);
 142 };
 143
 144 void __msm_fence_worker(struct work_struct *work);
 145
 146 #define INIT_FENCE_CB(_cb, _func)  do {                     \
 147                 INIT_WORK(&(_cb)->work, __msm_fence_worker); \
 148                 (_cb)->func = _func;                         \
 149         } while (0)
 150
 151 int msm_atomic_check(struct drm_device *dev,
 152                      struct drm_atomic_state *state);
 153 int msm_atomic_commit(struct drm_device *dev,
 154                 struct drm_atomic_state *state, bool async);
 155
 156 int msm_register_mmu(struct drm_device *dev, struct msm_mmu *mmu);
 157
 158 int msm_wait_fence_interruptable(struct drm_device *dev, uint32_t fence,
 159                 struct timespec *timeout);
 160 int msm_queue_fence_cb(struct drm_device *dev,
 161                 struct msm_fence_cb *cb, uint32_t fence);
 162 void msm_update_fence(struct drm_device *dev, uint32_t fence);
 163
 164 int msm_ioctl_gem_submit(struct drm_device *dev, void *data,
 165                 struct drm_file *file);
 166
 167 int msm_gem_mmap_obj(struct drm_gem_object *obj,
 168                         struct vm_area_struct *vma);
 169 int msm_gem_mmap(struct file *filp, struct vm_area_struct *vma);
 170 int msm_gem_fault(struct vm_area_struct *vma, struct vm_fault *vmf);
 171 uint64_t msm_gem_mmap_offset(struct drm_gem_object *obj);
 172 int msm_gem_get_iova_locked(struct drm_gem_object *obj, int id,
 173                 uint32_t *iova);
 174 int msm_gem_get_iova(struct drm_gem_object *obj, int id, uint32_t *iova);
 175 uint32_t msm_gem_iova(struct drm_gem_object *obj, int id);
 176 struct page **msm_gem_get_pages(struct drm_gem_object *obj);
 177 void msm_gem_put_pages(struct drm_gem_object *obj);
 178 void msm_gem_put_iova(struct drm_gem_object *obj, int id);
 179 int msm_gem_dumb_create(struct drm_file *file, struct drm_device *dev,
 180                 struct drm_mode_create_dumb *args);
 181 int msm_gem_dumb_map_offset(struct drm_file *file, struct drm_device *dev,
 182                 uint32_t handle, uint64_t *offset);
 183 struct sg_table *msm_gem_prime_get_sg_table(struct drm_gem_object *obj);
 184 void *msm_gem_prime_vmap(struct drm_gem_object *obj);
 185 void msm_gem_prime_vunmap(struct drm_gem_object *obj, void *vaddr);
 186 int msm_gem_prime_mmap(struct drm_gem_object *obj, struct vm_area_struct *vma);
 187 struct drm_gem_object *msm_gem_prime_import_sg_table(struct drm_device *dev,
 188                 struct dma_buf_attachment *attach, struct sg_table *sg);
 189 int msm_gem_prime_pin(struct drm_gem_object *obj);
 190 void msm_gem_prime_unpin(struct drm_gem_object *obj);
 191 void *msm_gem_vaddr_locked(struct drm_gem_object *obj);
 192 void *msm_gem_vaddr(struct drm_gem_object *obj);
 193 int msm_gem_queue_inactive_cb(struct drm_gem_object *obj,
 194                 struct msm_fence_cb *cb);
 195 void msm_gem_move_to_active(struct drm_gem_object *obj,
 196                 struct msm_gpu *gpu, bool write, uint32_t fence);
 197 void msm_gem_move_to_inactive(struct drm_gem_object *obj);
 198 int msm_gem_cpu_prep(struct drm_gem_object *obj, uint32_t op,
 199                 struct timespec *timeout);
 200 int msm_gem_cpu_fini(struct drm_gem_object *obj);
 201 void msm_gem_free_object(struct drm_gem_object *obj);
 202 int msm_gem_new_handle(struct drm_device *dev, struct drm_file *file,
 203                 uint32_t size, uint32_t flags, uint32_t *handle);
 204 struct drm_gem_object *msm_gem_new(struct drm_device *dev,
 205                 uint32_t size, uint32_t flags);
 206 struct drm_gem_object *msm_gem_import(struct drm_device *dev,
 207                 uint32_t size, struct sg_table *sgt);
 208
 209 int msm_framebuffer_prepare(struct drm_framebuffer *fb, int id);
 210 void msm_framebuffer_cleanup(struct drm_framebuffer *fb, int id);
 211 uint32_t msm_framebuffer_iova(struct drm_framebuffer *fb, int id, int plane);
 212 struct drm_gem_object *msm_framebuffer_bo(struct drm_framebuffer *fb, int plane);
 213 const struct msm_format *msm_framebuffer_format(struct drm_framebuffer *fb);
 214 struct drm_framebuffer *msm_framebuffer_init(struct drm_device *dev,
 215                 struct drm_mode_fb_cmd2 *mode_cmd, struct drm_gem_object **bos);
 216 struct drm_framebuffer *msm_framebuffer_create(struct drm_device *dev,
 217                 struct drm_file *file, struct drm_mode_fb_cmd2 *mode_cmd);
 218
 219 struct drm_fb_helper *msm_fbdev_init(struct drm_device *dev);
 220
 221 struct hdmi;
 222 int hdmi_modeset_init(struct hdmi *hdmi, struct drm_device *dev,
 223                 struct drm_encoder *encoder);
 224 void __init hdmi_register(void);
 225 void __exit hdmi_unregister(void);
 226
 227 #ifdef CONFIG_DEBUG_FS
 228 void msm_gem_describe(struct drm_gem_object *obj, struct seq_file *m);
 229 void msm_gem_describe_objects(struct list_head *list, struct seq_file *m);
 230 void msm_framebuffer_describe(struct drm_framebuffer *fb, struct seq_file *m);
 231 int msm_debugfs_late_init(struct drm_device *dev);
 232 int msm_rd_debugfs_init(struct drm_minor *minor);
 233 void msm_rd_debugfs_cleanup(struct drm_minor *minor);
 234 void msm_rd_dump_submit(struct msm_gem_submit *submit);
 235 int msm_perf_debugfs_init(struct drm_minor *minor);
 236 void msm_perf_debugfs_cleanup(struct drm_minor *minor);
 237 #else
 238 static inline int msm_debugfs_late_init(struct drm_device *dev) { return 0; }
 239 static inline void msm_rd_dump_submit(struct msm_gem_submit *submit) {}
 240 #endif
 241
 242 void __iomem *msm_ioremap(struct platform_device *pdev, const char *name,
 243                 const char *dbgname);
 244 void msm_writel(u32 data, void __iomem *addr);
 245 u32 msm_readl(const void __iomem *addr);
 246
 247 #define DBG(fmt, ...) DRM_DEBUG(fmt"\n", ##__VA_ARGS__)
 248 #define VERB(fmt, ...) if (0) DRM_DEBUG(fmt"\n", ##__VA_ARGS__)
 249
 250 static inline bool fence_completed(struct drm_device *dev, uint32_t fence)
 251 {
 252         struct msm_drm_private *priv = dev->dev_private;
 253         return priv->completed_fence >= fence;
 254 }
 255
 256 static inline int align_pitch(int width, int bpp)
 257 {
 258         int bytespp = (bpp + 7) / 8;
 259         /* adreno needs pitch aligned to 32 pixels: */
 260         return bytespp * ALIGN(width, 32);
 261 }
 262
 263 /* for the generated headers: */
 264 #define INVALID_IDX(idx) ({BUG(); 0;})
 265 #define fui(x)                ({BUG(); 0;})
 266 #define util_float_to_half(x) ({BUG(); 0;})
 267
 268
 269 #define FIELD(val, name) (((val) & name ## __MASK) >> name ## __SHIFT)
 270
 271 /* for conditionally setting boolean flag(s): */
 272 #define COND(bool, val) ((bool) ? (val) : 0)
 273
 274
 275 #endif /* __MSM_DRV_H__ */