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/*
* 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__ */
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