| /* |
| * Copyright (C) 2015 Etnaviv Project |
| * |
| * This program is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 as published by |
| * the Free Software Foundation. |
| * |
| * This program is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for |
| * more details. |
| * |
| * You should have received a copy of the GNU General Public License along with |
| * this program. If not, see <http://www.gnu.org/licenses/>. |
| */ |
| |
| #ifndef __ETNAVIV_DRV_H__ |
| #define __ETNAVIV_DRV_H__ |
| |
| #include <linux/kernel.h> |
| #include <linux/clk.h> |
| #include <linux/cpufreq.h> |
| #include <linux/module.h> |
| #include <linux/platform_device.h> |
| #include <linux/pm.h> |
| #include <linux/pm_runtime.h> |
| #include <linux/slab.h> |
| #include <linux/list.h> |
| #include <linux/iommu.h> |
| #include <linux/types.h> |
| #include <linux/sizes.h> |
| |
| #include <drm/drmP.h> |
| #include <drm/drm_crtc_helper.h> |
| #include <drm/drm_fb_helper.h> |
| #include <drm/drm_gem.h> |
| #include <drm/etnaviv_drm.h> |
| |
| struct etnaviv_cmdbuf; |
| struct etnaviv_gpu; |
| struct etnaviv_mmu; |
| struct etnaviv_gem_object; |
| struct etnaviv_gem_submit; |
| |
| struct etnaviv_file_private { |
| /* currently we don't do anything useful with this.. but when |
| * per-context address spaces are supported we'd keep track of |
| * the context's page-tables here. |
| */ |
| int dummy; |
| }; |
| |
| struct etnaviv_drm_private { |
| int num_gpus; |
| struct etnaviv_gpu *gpu[ETNA_MAX_PIPES]; |
| |
| /* list of GEM objects: */ |
| struct mutex gem_lock; |
| struct list_head gem_list; |
| |
| struct workqueue_struct *wq; |
| }; |
| |
| static inline void etnaviv_queue_work(struct drm_device *dev, |
| struct work_struct *w) |
| { |
| struct etnaviv_drm_private *priv = dev->dev_private; |
| |
| queue_work(priv->wq, w); |
| } |
| |
| int etnaviv_ioctl_gem_submit(struct drm_device *dev, void *data, |
| struct drm_file *file); |
| |
| int etnaviv_gem_mmap(struct file *filp, struct vm_area_struct *vma); |
| int etnaviv_gem_fault(struct vm_area_struct *vma, struct vm_fault *vmf); |
| int etnaviv_gem_mmap_offset(struct drm_gem_object *obj, u64 *offset); |
| int etnaviv_gem_get_iova(struct etnaviv_gpu *gpu, |
| struct drm_gem_object *obj, u32 *iova); |
| void etnaviv_gem_put_iova(struct etnaviv_gpu *gpu, struct drm_gem_object *obj); |
| struct sg_table *etnaviv_gem_prime_get_sg_table(struct drm_gem_object *obj); |
| void *etnaviv_gem_prime_vmap(struct drm_gem_object *obj); |
| void etnaviv_gem_prime_vunmap(struct drm_gem_object *obj, void *vaddr); |
| struct drm_gem_object *etnaviv_gem_prime_import_sg_table(struct drm_device *dev, |
| struct dma_buf_attachment *attach, struct sg_table *sg); |
| int etnaviv_gem_prime_pin(struct drm_gem_object *obj); |
| void etnaviv_gem_prime_unpin(struct drm_gem_object *obj); |
| void *etnaviv_gem_vaddr(struct drm_gem_object *obj); |
| int etnaviv_gem_cpu_prep(struct drm_gem_object *obj, u32 op, |
| struct timespec *timeout); |
| int etnaviv_gem_cpu_fini(struct drm_gem_object *obj); |
| void etnaviv_gem_free_object(struct drm_gem_object *obj); |
| int etnaviv_gem_new_handle(struct drm_device *dev, struct drm_file *file, |
| u32 size, u32 flags, u32 *handle); |
| struct drm_gem_object *etnaviv_gem_new_locked(struct drm_device *dev, |
| u32 size, u32 flags); |
| struct drm_gem_object *etnaviv_gem_new(struct drm_device *dev, |
| u32 size, u32 flags); |
| int etnaviv_gem_new_userptr(struct drm_device *dev, struct drm_file *file, |
| uintptr_t ptr, u32 size, u32 flags, u32 *handle); |
| u16 etnaviv_buffer_init(struct etnaviv_gpu *gpu); |
| void etnaviv_buffer_end(struct etnaviv_gpu *gpu); |
| void etnaviv_buffer_queue(struct etnaviv_gpu *gpu, unsigned int event, |
| struct etnaviv_cmdbuf *cmdbuf); |
| void etnaviv_validate_init(void); |
| bool etnaviv_cmd_validate_one(struct etnaviv_gpu *gpu, |
| u32 *stream, unsigned int size, |
| struct drm_etnaviv_gem_submit_reloc *relocs, unsigned int reloc_size); |
| |
| #ifdef CONFIG_DEBUG_FS |
| void etnaviv_gem_describe_objects(struct etnaviv_drm_private *priv, |
| struct seq_file *m); |
| #endif |
| |
| void __iomem *etnaviv_ioremap(struct platform_device *pdev, const char *name, |
| const char *dbgname); |
| void etnaviv_writel(u32 data, void __iomem *addr); |
| u32 etnaviv_readl(const void __iomem *addr); |
| |
| #define DBG(fmt, ...) DRM_DEBUG(fmt"\n", ##__VA_ARGS__) |
| #define VERB(fmt, ...) if (0) DRM_DEBUG(fmt"\n", ##__VA_ARGS__) |
| |
| /* |
| * Return the storage size of a structure with a variable length array. |
| * The array is nelem elements of elem_size, where the base structure |
| * is defined by base. If the size overflows size_t, return zero. |
| */ |
| static inline size_t size_vstruct(size_t nelem, size_t elem_size, size_t base) |
| { |
| if (elem_size && nelem > (SIZE_MAX - base) / elem_size) |
| return 0; |
| return base + nelem * elem_size; |
| } |
| |
| /* returns true if fence a comes after fence b */ |
| static inline bool fence_after(u32 a, u32 b) |
| { |
| return (s32)(a - b) > 0; |
| } |
| |
| static inline bool fence_after_eq(u32 a, u32 b) |
| { |
| return (s32)(a - b) >= 0; |
| } |
| |
| static inline unsigned long etnaviv_timeout_to_jiffies( |
| const struct timespec *timeout) |
| { |
| unsigned long timeout_jiffies = timespec_to_jiffies(timeout); |
| unsigned long start_jiffies = jiffies; |
| unsigned long remaining_jiffies; |
| |
| if (time_after(start_jiffies, timeout_jiffies)) |
| remaining_jiffies = 0; |
| else |
| remaining_jiffies = timeout_jiffies - start_jiffies; |
| |
| return remaining_jiffies; |
| } |
| |
| #endif /* __ETNAVIV_DRV_H__ */ |