linux/drivers/gpu/drm/lima/lima_gem.h
Qiang Yu 6aebc51d7a drm/lima: support heap buffer creation
heap buffer is used as output of GP and input of PP for
Mali Utgard GPU. Size of heap buffer depends on the task
so is a runtime variable.

Previously we just create a large enough buffer as heap
buffer. Now we add a heap buffer type to be able to
increase the backup memory dynamically when GP fail due
to lack of heap memory.

Reviewed-by: Vasily Khoruzhick <anarsoul@gmail.com>
Tested-by: Andreas Baierl <ichgeh@imkreisrum.de>
Signed-off-by: Qiang Yu <yuq825@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200116131157.13346-4-yuq825@gmail.com
2020-01-27 22:01:09 +08:00

48 lines
1.2 KiB
C

/* SPDX-License-Identifier: GPL-2.0 OR MIT */
/* Copyright 2017-2019 Qiang Yu <yuq825@gmail.com> */
#ifndef __LIMA_GEM_H__
#define __LIMA_GEM_H__
#include <drm/drm_gem_shmem_helper.h>
struct lima_submit;
struct lima_vm;
struct lima_bo {
struct drm_gem_shmem_object base;
struct mutex lock;
struct list_head va;
size_t heap_size;
};
static inline struct lima_bo *
to_lima_bo(struct drm_gem_object *obj)
{
return container_of(to_drm_gem_shmem_obj(obj), struct lima_bo, base);
}
static inline size_t lima_bo_size(struct lima_bo *bo)
{
return bo->base.base.size;
}
static inline struct dma_resv *lima_bo_resv(struct lima_bo *bo)
{
return bo->base.base.resv;
}
int lima_heap_alloc(struct lima_bo *bo, struct lima_vm *vm);
struct drm_gem_object *lima_gem_create_object(struct drm_device *dev, size_t size);
int lima_gem_create_handle(struct drm_device *dev, struct drm_file *file,
u32 size, u32 flags, u32 *handle);
int lima_gem_get_info(struct drm_file *file, u32 handle, u32 *va, u64 *offset);
int lima_gem_submit(struct drm_file *file, struct lima_submit *submit);
int lima_gem_wait(struct drm_file *file, u32 handle, u32 op, s64 timeout_ns);
void lima_set_vma_flags(struct vm_area_struct *vma);
#endif