static struct nvhost_hwctx *ctx3d_alloc(struct nvhost_channel *ch)
{
struct nvhost_hwctx *ctx;
ctx = kzalloc(sizeof(*ctx), GFP_KERNEL);
if (!ctx)
return NULL;
ctx->restore = nvmap_alloc(context_restore_size * 4, 32,
NVMEM_HANDLE_WRITE_COMBINE,
(void**)&ctx->save_cpu_data);
if (IS_ERR_OR_NULL(ctx->restore)) {
kfree(ctx);
return NULL;
}
setup_restore(ctx->save_cpu_data, NVWAITBASE_3D);
ctx->channel = ch;
ctx->restore_phys = nvmap_pin_single(ctx->restore);
ctx->restore_size = context_restore_size;
ctx->save = context_save_buf;
ctx->save_phys = context_save_phys;
ctx->save_size = context_save_size;
ctx->save_incrs = 3;
ctx->restore_incrs = 1;
ctx->valid = false;
kref_init(&ctx->ref);
return ctx;
}
struct nvhost_hwctx_handler *nvhost_gr3d_t30_ctxhandler_init(
u32 syncpt, u32 waitbase,
struct nvhost_channel *ch)
{
struct nvmap_client *nvmap;
u32 *save_ptr;
struct host1x_hwctx_handler *p;
p = kmalloc(sizeof(*p), GFP_KERNEL);
if (!p)
return NULL;
nvmap = nvhost_get_host(ch->dev)->nvmap;
register_sets = tegra_gpu_register_sets();
BUG_ON(register_sets == 0 || register_sets > 2);
p->syncpt = syncpt;
p->waitbase = waitbase;
setup_save(p, NULL);
p->save_buf = nvmap_alloc(nvmap, p->save_size * 4, 32,
NVMAP_HANDLE_WRITE_COMBINE, 0);
if (IS_ERR(p->save_buf)) {
p->save_buf = NULL;
return NULL;
}
p->save_slots = 6;
if (register_sets == 2)
p->save_slots += 2;
save_ptr = nvmap_mmap(p->save_buf);
if (!save_ptr) {
nvmap_free(nvmap, p->save_buf);
p->save_buf = NULL;
return NULL;
}
p->save_phys = nvmap_pin(nvmap, p->save_buf);
setup_save(p, save_ptr);
p->h.alloc = ctx3d_alloc_v1;
p->h.save_push = save_push_v1;
p->h.save_service = NULL;
p->h.get = nvhost_3dctx_get;
p->h.put = nvhost_3dctx_put;
return &p->h;
}
struct nvhost_hwctx *nvhost_3dctx_alloc_common(struct nvhost_channel *ch,
bool map_restore)
{
struct nvmap_client *nvmap = ch->dev->nvmap;
struct nvhost_hwctx *ctx;
ctx = kzalloc(sizeof(*ctx), GFP_KERNEL);
if (!ctx)
return NULL;
ctx->restore = nvmap_alloc(nvmap, nvhost_3dctx_restore_size * 4, 32,
map_restore ? NVMAP_HANDLE_WRITE_COMBINE
: NVMAP_HANDLE_UNCACHEABLE);
if (IS_ERR_OR_NULL(ctx->restore))
goto fail;
if (map_restore) {
ctx->restore_virt = nvmap_mmap(ctx->restore);
if (!ctx->restore_virt)
goto fail;
} else
ctx->restore_virt = NULL;
kref_init(&ctx->ref);
ctx->channel = ch;
ctx->valid = false;
ctx->save = nvhost_3dctx_save_buf;
ctx->save_incrs = nvhost_3dctx_save_incrs;
ctx->save_thresh = nvhost_3dctx_save_thresh;
ctx->save_slots = nvhost_3dctx_save_slots;
ctx->restore_phys = nvmap_pin(nvmap, ctx->restore);
if (IS_ERR_VALUE(ctx->restore_phys))
goto fail;
ctx->restore_size = nvhost_3dctx_restore_size;
ctx->restore_incrs = nvhost_3dctx_restore_incrs;
return ctx;
fail:
if (map_restore && ctx->restore_virt) {
nvmap_munmap(ctx->restore, ctx->restore_virt);
ctx->restore_virt = NULL;
}
nvmap_free(nvmap, ctx->restore);
ctx->restore = NULL;
kfree(ctx);
return NULL;
}
int __init nvhost_3dctx_handler_init(struct nvhost_hwctx_handler *h)
{
setup_save(NULL, &context_save_size, &context_restore_size, 0, 0);
context_save_buf = nvmap_alloc(context_save_size * 4, 32,
NVMEM_HANDLE_WRITE_COMBINE,
(void**)&context_save_ptr);
if (IS_ERR_OR_NULL(context_save_buf))
return PTR_ERR(context_save_buf);
context_save_phys = nvmap_pin_single(context_save_buf);
setup_save(context_save_ptr, NULL, NULL, NVSYNCPT_3D, NVWAITBASE_3D);
h->init = ctx3d_init;
h->deinit = ctx3d_deinit;
h->save_service = ctx3d_save_service;
return 0;
}
int __init nvhost_gr3d_t30_ctxhandler_init(struct nvhost_hwctx_handler *h)
{
struct nvhost_channel *ch;
struct nvmap_client *nvmap;
u32 *save_ptr;
ch = container_of(h, struct nvhost_channel, ctxhandler);
nvmap = ch->dev->nvmap;
register_sets = tegra_gpu_register_sets();
BUG_ON(register_sets == 0 || register_sets > 2);
setup_save(NULL);
nvhost_3dctx_save_buf = nvmap_alloc(nvmap, save_size * 4, 32,
NVMAP_HANDLE_WRITE_COMBINE);
if (IS_ERR(nvhost_3dctx_save_buf)) {
int err = PTR_ERR(nvhost_3dctx_save_buf);
nvhost_3dctx_save_buf = NULL;
return err;
}
nvhost_3dctx_save_slots = 6;
if (register_sets == 2)
nvhost_3dctx_save_slots += 2;
save_ptr = nvmap_mmap(nvhost_3dctx_save_buf);
if (!save_ptr) {
nvmap_free(nvmap, nvhost_3dctx_save_buf);
nvhost_3dctx_save_buf = NULL;
return -ENOMEM;
}
save_phys = nvmap_pin(nvmap, nvhost_3dctx_save_buf);
setup_save(save_ptr);
h->alloc = ctx3d_alloc_v1;
h->save_push = save_push_v1;
h->save_service = NULL;
h->get = nvhost_3dctx_get;
h->put = nvhost_3dctx_put;
return 0;
}
static int ctx3d_init(struct nvhost_hwctx *ctx)
{
ctx->restore = nvmap_alloc(context_restore_size * 4, 32,
NVMEM_HANDLE_WRITE_COMBINE,
(void**)&ctx->save_cpu_data);
if (IS_ERR_OR_NULL(ctx->restore))
return PTR_ERR(ctx->restore);
setup_restore(ctx->save_cpu_data, NVWAITBASE_3D);
ctx->restore_phys = nvmap_pin_single(ctx->restore);
ctx->restore_size = context_restore_size;
ctx->save = context_save_buf;
ctx->save_phys = context_save_phys;
ctx->save_size = context_save_size;
ctx->save_incrs = 3;
ctx->restore_incrs = 1;
ctx->valid = false;
return 0;
}
static int alloc_gathers(struct nvhost_job *job,
int num_cmdbufs)
{
int err = 0;
job->gather_mem = NULL;
job->gathers = NULL;
job->gather_mem_size = 0;
if (num_cmdbufs) {
/* Allocate memory */
job->gather_mem = nvmap_alloc(job->nvmap,
gather_size(num_cmdbufs),
32, NVMAP_HANDLE_CACHEABLE, 0);
if (IS_ERR_OR_NULL(job->gather_mem)) {
err = PTR_ERR(job->gather_mem);
if (!job->gather_mem)
err = -ENOMEM;
job->gather_mem = NULL;
goto error;
}
job->gather_mem_size = gather_size(num_cmdbufs);
/* Map memory to kernel */
job->gathers = nvmap_mmap(job->gather_mem);
if (IS_ERR_OR_NULL(job->gathers)) {
err = PTR_ERR(job->gathers);
if (!job->gathers)
err = -ENOMEM;
job->gathers = NULL;
goto error;
}
}
return 0;
error:
free_gathers(job);
return err;
}
static int nvhost_channelopen(struct inode *inode, struct file *filp)
{
struct nvhost_channel_userctx *priv;
struct nvhost_channel *ch;
ch = container_of(inode->i_cdev, struct nvhost_channel, cdev);
ch = nvhost_getchannel(ch);
if (!ch)
return -ENOMEM;
trace_nvhost_channel_open(ch->desc->name);
priv = kzalloc(sizeof(*priv), GFP_KERNEL);
if (!priv) {
nvhost_putchannel(ch, NULL);
return -ENOMEM;
}
filp->private_data = priv;
priv->ch = ch;
nvhost_module_add_client(ch->dev, &ch->mod, priv);
priv->gather_mem = nvmap_alloc(ch->dev->nvmap,
sizeof(u32) * 2 * NVHOST_MAX_GATHERS, 32,
NVMAP_HANDLE_CACHEABLE);
if (IS_ERR(priv->gather_mem))
goto fail;
if (ch->ctxhandler.alloc) {
priv->hwctx = ch->ctxhandler.alloc(ch);
if (!priv->hwctx)
goto fail;
priv->hwctx->timeout = &priv->timeout;
}
priv->gathers = nvmap_mmap(priv->gather_mem);
return 0;
fail:
nvhost_channelrelease(inode, filp);
return -ENOMEM;
}
static int tegra_pcm_preallocate_dma_buffer(struct snd_pcm *pcm,
int stream , size_t size)
{
struct snd_pcm_substream *substream = pcm->streams[stream].substream;
struct snd_dma_buffer *buf = &substream->dma_buffer;
#if TEGRA30_USE_SMMU
unsigned char *vaddr;
phys_addr_t paddr;
struct tegra_smmu_data *ptsd;
ptsd = kzalloc(sizeof(struct tegra_smmu_data), GFP_KERNEL);
ptsd->pcm_nvmap_client = nvmap_create_client(nvmap_dev, "Audio_SMMU");
ptsd->pcm_nvmap_handle = nvmap_alloc(ptsd->pcm_nvmap_client,
size,
32,
NVMAP_HANDLE_WRITE_COMBINE,
NVMAP_HEAP_IOVMM);
vaddr = (unsigned char *) nvmap_mmap(ptsd->pcm_nvmap_handle);
paddr = nvmap_pin(ptsd->pcm_nvmap_client, ptsd->pcm_nvmap_handle);
buf->area = vaddr;
buf->addr = paddr;
buf->private_data = ptsd;
#else
buf->area = dma_alloc_writecombine(pcm->card->dev, size,
&buf->addr, GFP_KERNEL);
if (!buf->area)
return -ENOMEM;
buf->private_data = NULL;
#endif
buf->dev.type = SNDRV_DMA_TYPE_DEV;
buf->dev.dev = pcm->card->dev;
buf->bytes = size;
return 0;
}
struct mem_handle *nvhost_nvmap_alloc(struct mem_mgr *mgr,
size_t size, size_t align, int flags)
{
return (struct mem_handle *)nvmap_alloc((struct nvmap_client *)mgr,
size, align, flags, 0);
}
