Release 4.18 drivers/gpu/drm/etnaviv/etnaviv_gem_prime.c
// SPDX-License-Identifier: GPL-2.0
/*
* Copyright (C) 2014-2018 Etnaviv Project
*/
#include <linux/dma-buf.h>
#include "etnaviv_drv.h"
#include "etnaviv_gem.h"
static struct lock_class_key etnaviv_prime_lock_class;
struct sg_table *etnaviv_gem_prime_get_sg_table(struct drm_gem_object *obj)
{
struct etnaviv_gem_object *etnaviv_obj = to_etnaviv_bo(obj);
int npages = obj->size >> PAGE_SHIFT;
if (WARN_ON(!etnaviv_obj->pages)) /* should have already pinned! */
return NULL;
return drm_prime_pages_to_sg(etnaviv_obj->pages, npages);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| The etnaviv authors | 32 | 58.18% | 1 | 50.00% |
| Lucas Stach | 23 | 41.82% | 1 | 50.00% |
| Total | 55 | 100.00% | 2 | 100.00% |
void *etnaviv_gem_prime_vmap(struct drm_gem_object *obj)
{
return etnaviv_gem_vmap(obj);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| The etnaviv authors | 16 | 94.12% | 1 | 50.00% |
| Lucas Stach | 1 | 5.88% | 1 | 50.00% |
| Total | 17 | 100.00% | 2 | 100.00% |
void etnaviv_gem_prime_vunmap(struct drm_gem_object *obj, void *vaddr)
{
/* TODO msm_gem_vunmap() */
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| The etnaviv authors | 15 | 100.00% | 1 | 100.00% |
| Total | 15 | 100.00% | 1 | 100.00% |
int etnaviv_gem_prime_mmap(struct drm_gem_object *obj,
struct vm_area_struct *vma)
{
struct etnaviv_gem_object *etnaviv_obj = to_etnaviv_bo(obj);
int ret;
ret = drm_gem_mmap_obj(obj, obj->size, vma);
if (ret < 0)
return ret;
return etnaviv_obj->ops->mmap(etnaviv_obj, vma);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Lucas Stach | 62 | 100.00% | 1 | 100.00% |
| Total | 62 | 100.00% | 1 | 100.00% |
int etnaviv_gem_prime_pin(struct drm_gem_object *obj)
{
if (!obj->import_attach) {
struct etnaviv_gem_object *etnaviv_obj = to_etnaviv_bo(obj);
mutex_lock(&etnaviv_obj->lock);
etnaviv_gem_get_pages(etnaviv_obj);
mutex_unlock(&etnaviv_obj->lock);
}
return 0;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| The etnaviv authors | 53 | 100.00% | 1 | 100.00% |
| Total | 53 | 100.00% | 1 | 100.00% |
void etnaviv_gem_prime_unpin(struct drm_gem_object *obj)
{
if (!obj->import_attach) {
struct etnaviv_gem_object *etnaviv_obj = to_etnaviv_bo(obj);
mutex_lock(&etnaviv_obj->lock);
etnaviv_gem_put_pages(to_etnaviv_bo(obj));
mutex_unlock(&etnaviv_obj->lock);
}
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| The etnaviv authors | 53 | 100.00% | 1 | 100.00% |
| Total | 53 | 100.00% | 1 | 100.00% |
static void etnaviv_gem_prime_release(struct etnaviv_gem_object *etnaviv_obj)
{
if (etnaviv_obj->vaddr)
dma_buf_vunmap(etnaviv_obj->base.import_attach->dmabuf,
etnaviv_obj->vaddr);
/* Don't drop the pages for imported dmabuf, as they are not
* ours, just free the array we allocated:
*/
if (etnaviv_obj->pages)
kvfree(etnaviv_obj->pages);
drm_prime_gem_destroy(&etnaviv_obj->base, etnaviv_obj->sgt);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| The etnaviv authors | 57 | 98.28% | 1 | 50.00% |
| Michal Hocko | 1 | 1.72% | 1 | 50.00% |
| Total | 58 | 100.00% | 2 | 100.00% |
static void *etnaviv_gem_prime_vmap_impl(struct etnaviv_gem_object *etnaviv_obj)
{
lockdep_assert_held(&etnaviv_obj->lock);
return dma_buf_vmap(etnaviv_obj->base.import_attach->dmabuf);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Lucas Stach | 32 | 100.00% | 1 | 100.00% |
| Total | 32 | 100.00% | 1 | 100.00% |
static int etnaviv_gem_prime_mmap_obj(struct etnaviv_gem_object *etnaviv_obj,
struct vm_area_struct *vma)
{
return dma_buf_mmap(etnaviv_obj->base.dma_buf, vma, 0);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Lucas Stach | 30 | 100.00% | 1 | 100.00% |
| Total | 30 | 100.00% | 1 | 100.00% |
static const struct etnaviv_gem_ops etnaviv_gem_prime_ops = {
/* .get_pages should never be called */
.release = etnaviv_gem_prime_release,
.vmap = etnaviv_gem_prime_vmap_impl,
.mmap = etnaviv_gem_prime_mmap_obj,
};
struct drm_gem_object *etnaviv_gem_prime_import_sg_table(struct drm_device *dev,
struct dma_buf_attachment *attach, struct sg_table *sgt)
{
struct etnaviv_gem_object *etnaviv_obj;
size_t size = PAGE_ALIGN(attach->dmabuf->size);
int ret, npages;
ret = etnaviv_gem_new_private(dev, size, ETNA_BO_WC,
attach->dmabuf->resv,
&etnaviv_gem_prime_ops, &etnaviv_obj);
if (ret < 0)
return ERR_PTR(ret);
lockdep_set_class(&etnaviv_obj->lock, &etnaviv_prime_lock_class);
npages = size / PAGE_SIZE;
etnaviv_obj->sgt = sgt;
etnaviv_obj->pages = kvmalloc_array(npages, sizeof(struct page *), GFP_KERNEL);
if (!etnaviv_obj->pages) {
ret = -ENOMEM;
goto fail;
}
ret = drm_prime_sg_to_page_addr_arrays(sgt, etnaviv_obj->pages,
NULL, npages);
if (ret)
goto fail;
etnaviv_gem_obj_add(dev, &etnaviv_obj->base);
return &etnaviv_obj->base;
fail:
drm_gem_object_put_unlocked(&etnaviv_obj->base);
return ERR_PTR(ret);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| The etnaviv authors | 176 | 92.15% | 1 | 25.00% |
| Lucas Stach | 11 | 5.76% | 1 | 25.00% |
| Michal Hocko | 3 | 1.57% | 1 | 25.00% |
| Cihangir Akturk | 1 | 0.52% | 1 | 25.00% |
| Total | 191 | 100.00% | 4 | 100.00% |
struct reservation_object *etnaviv_gem_prime_res_obj(struct drm_gem_object *obj)
{
struct etnaviv_gem_object *etnaviv_obj = to_etnaviv_bo(obj);
return etnaviv_obj->resv;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Eric Anholt | 27 | 100.00% | 1 | 100.00% |
| Total | 27 | 100.00% | 1 | 100.00% |
Overall Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| The etnaviv authors | 425 | 67.14% | 1 | 9.09% |
| Lucas Stach | 176 | 27.80% | 7 | 63.64% |
| Eric Anholt | 27 | 4.27% | 1 | 9.09% |
| Michal Hocko | 4 | 0.63% | 1 | 9.09% |
| Cihangir Akturk | 1 | 0.16% | 1 | 9.09% |
| Total | 633 | 100.00% | 11 | 100.00% |
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