mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-21 16:59:48 +07:00
a0a5ab3e99
When trying to get the vmap address of an imported buffer, we must call into the appropriate helper function, to allow the exporter to establish the vmap, instead of trying to vmap the buffer on our own. Add an indirection through etnaviv_gem_ops to allow the correct implementation to be called. Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
119 lines
3.1 KiB
C
119 lines
3.1 KiB
C
/*
|
|
* 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_GEM_H__
|
|
#define __ETNAVIV_GEM_H__
|
|
|
|
#include <linux/reservation.h>
|
|
#include "etnaviv_drv.h"
|
|
|
|
struct etnaviv_gem_ops;
|
|
struct etnaviv_gem_object;
|
|
|
|
struct etnaviv_gem_userptr {
|
|
uintptr_t ptr;
|
|
struct task_struct *task;
|
|
struct work_struct *work;
|
|
bool ro;
|
|
};
|
|
|
|
struct etnaviv_vram_mapping {
|
|
struct list_head obj_node;
|
|
struct list_head scan_node;
|
|
struct list_head mmu_node;
|
|
struct etnaviv_gem_object *object;
|
|
struct etnaviv_iommu *mmu;
|
|
struct drm_mm_node vram_node;
|
|
unsigned int use;
|
|
u32 iova;
|
|
};
|
|
|
|
struct etnaviv_gem_object {
|
|
struct drm_gem_object base;
|
|
const struct etnaviv_gem_ops *ops;
|
|
struct mutex lock;
|
|
|
|
u32 flags;
|
|
|
|
struct list_head gem_node;
|
|
struct etnaviv_gpu *gpu; /* non-null if active */
|
|
atomic_t gpu_active;
|
|
u32 access;
|
|
|
|
struct page **pages;
|
|
struct sg_table *sgt;
|
|
void *vaddr;
|
|
|
|
/* normally (resv == &_resv) except for imported bo's */
|
|
struct reservation_object *resv;
|
|
struct reservation_object _resv;
|
|
|
|
struct list_head vram_list;
|
|
|
|
/* cache maintenance */
|
|
u32 last_cpu_prep_op;
|
|
|
|
struct etnaviv_gem_userptr userptr;
|
|
};
|
|
|
|
static inline
|
|
struct etnaviv_gem_object *to_etnaviv_bo(struct drm_gem_object *obj)
|
|
{
|
|
return container_of(obj, struct etnaviv_gem_object, base);
|
|
}
|
|
|
|
struct etnaviv_gem_ops {
|
|
int (*get_pages)(struct etnaviv_gem_object *);
|
|
void (*release)(struct etnaviv_gem_object *);
|
|
void *(*vmap)(struct etnaviv_gem_object *);
|
|
};
|
|
|
|
static inline bool is_active(struct etnaviv_gem_object *etnaviv_obj)
|
|
{
|
|
return atomic_read(&etnaviv_obj->gpu_active) != 0;
|
|
}
|
|
|
|
#define MAX_CMDS 4
|
|
|
|
/* Created per submit-ioctl, to track bo's and cmdstream bufs, etc,
|
|
* associated with the cmdstream submission for synchronization (and
|
|
* make it easier to unwind when things go wrong, etc). This only
|
|
* lasts for the duration of the submit-ioctl.
|
|
*/
|
|
struct etnaviv_gem_submit {
|
|
struct drm_device *dev;
|
|
struct etnaviv_gpu *gpu;
|
|
struct ww_acquire_ctx ticket;
|
|
u32 fence;
|
|
unsigned int nr_bos;
|
|
struct {
|
|
u32 flags;
|
|
struct etnaviv_gem_object *obj;
|
|
u32 iova;
|
|
} bos[0];
|
|
};
|
|
|
|
int etnaviv_gem_wait_bo(struct etnaviv_gpu *gpu, struct drm_gem_object *obj,
|
|
struct timespec *timeout);
|
|
int etnaviv_gem_new_private(struct drm_device *dev, size_t size, u32 flags,
|
|
struct reservation_object *robj, const struct etnaviv_gem_ops *ops,
|
|
struct etnaviv_gem_object **res);
|
|
int etnaviv_gem_obj_add(struct drm_device *dev, struct drm_gem_object *obj);
|
|
struct page **etnaviv_gem_get_pages(struct etnaviv_gem_object *obj);
|
|
void etnaviv_gem_put_pages(struct etnaviv_gem_object *obj);
|
|
|
|
#endif /* __ETNAVIV_GEM_H__ */
|