diff options
Diffstat (limited to 'drivers/gpu/drm/etnaviv/etnaviv_drv.h')
| -rw-r--r-- | drivers/gpu/drm/etnaviv/etnaviv_drv.h | 161 |
1 files changed, 161 insertions, 0 deletions
diff --git a/drivers/gpu/drm/etnaviv/etnaviv_drv.h b/drivers/gpu/drm/etnaviv/etnaviv_drv.h new file mode 100644 index 000000000000..d6bd438bd5be --- /dev/null +++ b/drivers/gpu/drm/etnaviv/etnaviv_drv.h @@ -0,0 +1,161 @@ +/* + * 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__ */ |