On Mon, Jan 9, 2023 at 2:24 PM Jacek Lawrynowicz
<jacek.lawrynowicz@xxxxxxxxxxxxxxx> wrote:
>
> Adds four types of GEM-based BOs for the VPU:
> - shmem
> - userptr
> - internal
> - prime
>
> All types are implemented as struct ivpu_bo, based on
> struct drm_gem_object. VPU address is allocated when buffer is created
> except for imported prime buffers that allocate it in BO_INFO IOCTL due
> to missing file_priv arg in gem_prime_import callback.
> Internal buffers are pinned on creation, the rest of buffers types
> can be pinned on demand (in SUBMIT IOCTL).
> Buffer VPU address, allocated pages and mappings are released when the
> buffer is destroyed.
> Eviction mechism is planned for future versions.
>
> Add three new IOCTLs: BO_CREATE, BO_INFO, BO_USERPTR
>
> Signed-off-by: Jacek Lawrynowicz <jacek.lawrynowicz@xxxxxxxxxxxxxxx>
> ---
> drivers/accel/ivpu/Makefile | 1 +
> drivers/accel/ivpu/ivpu_drv.c | 31 +-
> drivers/accel/ivpu/ivpu_drv.h | 1 +
> drivers/accel/ivpu/ivpu_gem.c | 820 ++++++++++++++++++++++++++++++++++
> drivers/accel/ivpu/ivpu_gem.h | 128 ++++++
> include/uapi/drm/ivpu_accel.h | 127 ++++++
> 6 files changed, 1106 insertions(+), 2 deletions(-)
> create mode 100644 drivers/accel/ivpu/ivpu_gem.c
> create mode 100644 drivers/accel/ivpu/ivpu_gem.h
>
> diff --git a/drivers/accel/ivpu/Makefile b/drivers/accel/ivpu/Makefile
> index 59cd7843b218..5d7c5862399c 100644
> --- a/drivers/accel/ivpu/Makefile
> +++ b/drivers/accel/ivpu/Makefile
> @@ -3,6 +3,7 @@
>
> intel_vpu-y := \
> ivpu_drv.o \
> + ivpu_gem.o \
> ivpu_hw_mtl.o \
> ivpu_mmu.o \
> ivpu_mmu_context.o
> diff --git a/drivers/accel/ivpu/ivpu_drv.c b/drivers/accel/ivpu/ivpu_drv.c
> index d7982f451781..0b9034499c4c 100644
> --- a/drivers/accel/ivpu/ivpu_drv.c
> +++ b/drivers/accel/ivpu/ivpu_drv.c
> @@ -12,8 +12,10 @@
> #include <drm/drm_file.h>
> #include <drm/drm_gem.h>
> #include <drm/drm_ioctl.h>
> +#include <drm/drm_prime.h>
>
> #include "ivpu_drv.h"
> +#include "ivpu_gem.h"
> #include "ivpu_hw.h"
> #include "ivpu_mmu.h"
> #include "ivpu_mmu_context.h"
> @@ -49,6 +51,24 @@ struct ivpu_file_priv *ivpu_file_priv_get(struct ivpu_file_priv *file_priv)
> return file_priv;
> }
>
> +struct ivpu_file_priv *ivpu_file_priv_get_by_ctx_id(struct ivpu_device *vdev, unsigned long id)
> +{
> + struct ivpu_file_priv *file_priv;
> +
> + xa_lock_irq(&vdev->context_xa);
> + file_priv = xa_load(&vdev->context_xa, id);
> + /* file_priv may still be in context_xa during file_priv_release() */
> + if (file_priv && !kref_get_unless_zero(&file_priv->ref))
> + file_priv = NULL;
> + xa_unlock_irq(&vdev->context_xa);
> +
> + if (file_priv)
> + ivpu_dbg(vdev, KREF, "file_priv get by id: ctx %u refcount %u\n",
> + file_priv->ctx.id, kref_read(&file_priv->ref));
> +
> + return file_priv;
> +}
> +
> static void file_priv_release(struct kref *ref)
> {
> struct ivpu_file_priv *file_priv = container_of(ref, struct ivpu_file_priv, ref);
> @@ -57,7 +77,7 @@ static void file_priv_release(struct kref *ref)
> ivpu_dbg(vdev, FILE, "file_priv release: ctx %u\n", file_priv->ctx.id);
>
> ivpu_mmu_user_context_fini(vdev, &file_priv->ctx);
> - WARN_ON(xa_erase_irq(&vdev->context_xa, file_priv->ctx.id) != file_priv);
> + drm_WARN_ON(&vdev->drm, xa_erase_irq(&vdev->context_xa, file_priv->ctx.id) != file_priv);
> kfree(file_priv);
> }
>
> @@ -66,7 +86,7 @@ void ivpu_file_priv_put(struct ivpu_file_priv **link)
> struct ivpu_file_priv *file_priv = *link;
> struct ivpu_device *vdev = file_priv->vdev;
>
> - WARN_ON(!file_priv);
> + drm_WARN_ON(&vdev->drm, !file_priv);
>
> ivpu_dbg(vdev, KREF, "file_priv put: ctx %u refcount %u\n",
> file_priv->ctx.id, kref_read(&file_priv->ref));
> @@ -200,6 +220,9 @@ static void ivpu_postclose(struct drm_device *dev, struct drm_file *file)
> static const struct drm_ioctl_desc ivpu_drm_ioctls[] = {
> DRM_IOCTL_DEF_DRV(IVPU_GET_PARAM, ivpu_get_param_ioctl, 0),
> DRM_IOCTL_DEF_DRV(IVPU_SET_PARAM, ivpu_set_param_ioctl, 0),
> + DRM_IOCTL_DEF_DRV(IVPU_BO_CREATE, ivpu_bo_create_ioctl, 0),
> + DRM_IOCTL_DEF_DRV(IVPU_BO_INFO, ivpu_bo_info_ioctl, 0),
> + DRM_IOCTL_DEF_DRV(IVPU_BO_USERPTR, ivpu_bo_userptr_ioctl, 0),
> };
>
> int ivpu_shutdown(struct ivpu_device *vdev)
> @@ -233,6 +256,10 @@ static const struct drm_driver driver = {
>
> .open = ivpu_open,
> .postclose = ivpu_postclose,
> + .prime_handle_to_fd = drm_gem_prime_handle_to_fd,
> + .prime_fd_to_handle = drm_gem_prime_fd_to_handle,
> + .gem_prime_import = ivpu_gem_prime_import,
> + .gem_prime_mmap = drm_gem_prime_mmap,
>
> .ioctls = ivpu_drm_ioctls,
> .num_ioctls = ARRAY_SIZE(ivpu_drm_ioctls),
> diff --git a/drivers/accel/ivpu/ivpu_drv.h b/drivers/accel/ivpu/ivpu_drv.h
> index a749a0b97703..e8a43dbe5a3a 100644
> --- a/drivers/accel/ivpu/ivpu_drv.h
> +++ b/drivers/accel/ivpu/ivpu_drv.h
> @@ -115,6 +115,7 @@ extern u8 ivpu_pll_min_ratio;
> extern u8 ivpu_pll_max_ratio;
>
> struct ivpu_file_priv *ivpu_file_priv_get(struct ivpu_file_priv *file_priv);
> +struct ivpu_file_priv *ivpu_file_priv_get_by_ctx_id(struct ivpu_device *vdev, unsigned long id);
> void ivpu_file_priv_put(struct ivpu_file_priv **link);
> int ivpu_shutdown(struct ivpu_device *vdev);
>
> diff --git a/drivers/accel/ivpu/ivpu_gem.c b/drivers/accel/ivpu/ivpu_gem.c
> new file mode 100644
> index 000000000000..f6d1937c798f
> --- /dev/null
> +++ b/drivers/accel/ivpu/ivpu_gem.c
> @@ -0,0 +1,820 @@
> +// SPDX-License-Identifier: GPL-2.0-only
> +/*
> + * Copyright (C) 2020-2023 Intel Corporation
> + */
> +
> +#include <linux/dma-buf.h>
> +#include <linux/highmem.h>
> +#include <linux/module.h>
> +#include <linux/set_memory.h>
> +#include <linux/xarray.h>
> +
> +#include <drm/drm_cache.h>
> +#include <drm/drm_debugfs.h>
> +#include <drm/drm_file.h>
> +#include <drm/drm_utils.h>
> +
> +#include "ivpu_drv.h"
> +#include "ivpu_gem.h"
> +#include "ivpu_hw.h"
> +#include "ivpu_mmu.h"
> +#include "ivpu_mmu_context.h"
> +
> +MODULE_IMPORT_NS(DMA_BUF);
> +
> +static const struct drm_gem_object_funcs ivpu_gem_funcs;
> +
> +static struct lock_class_key prime_bo_lock_class_key;
> +static struct lock_class_key userptr_bo_lock_class_key;
> +
> +static int __must_check prime_alloc_pages_locked(struct ivpu_bo *bo)
> +{
> + /* Pages are managed by the underlying dma-buf */
> + return 0;
> +}
> +
> +static void prime_free_pages_locked(struct ivpu_bo *bo)
> +{
> + /* Pages are managed by the underlying dma-buf */
> +}
> +
> +static int prime_map_pages_locked(struct ivpu_bo *bo)
> +{
> + struct ivpu_device *vdev = ivpu_bo_to_vdev(bo);
> + struct sg_table *sgt;
> +
> + WARN_ON(!bo->base.import_attach);
> +
> + sgt = dma_buf_map_attachment(bo->base.import_attach, DMA_BIDIRECTIONAL);
> + if (IS_ERR(sgt)) {
> + ivpu_err(vdev, "Failed to map attachment: %ld\n", PTR_ERR(sgt));
> + return PTR_ERR(sgt);
> + }
> +
> + bo->sgt = sgt;
> + return 0;
> +}
> +
> +static void prime_unmap_pages_locked(struct ivpu_bo *bo)
> +{
> + WARN_ON(!bo->base.import_attach);
> +
> + dma_buf_unmap_attachment(bo->base.import_attach, bo->sgt, DMA_BIDIRECTIONAL);
> + bo->sgt = NULL;
> +}
> +
> +static const struct ivpu_bo_ops prime_ops = {
> + .type = IVPU_BO_TYPE_PRIME,
> + .name = "prime",
> + .alloc_pages = prime_alloc_pages_locked,
> + .free_pages = prime_free_pages_locked,
> + .map_pages = prime_map_pages_locked,
> + .unmap_pages = prime_unmap_pages_locked,
> +};
> +
> +static int __must_check shmem_alloc_pages_locked(struct ivpu_bo *bo)
> +{
> + int npages = bo->base.size >> PAGE_SHIFT;
> + struct page **pages;
> +
> + pages = drm_gem_get_pages(&bo->base);
> + if (IS_ERR(pages))
> + return PTR_ERR(pages);
> +
> + if (bo->flags & DRM_IVPU_BO_WC)
> + set_pages_array_wc(pages, npages);
> + else if (bo->flags & DRM_IVPU_BO_UNCACHED)
> + set_pages_array_uc(pages, npages);
> +
> + bo->pages = pages;
> + return 0;
> +}
> +
> +static void shmem_free_pages_locked(struct ivpu_bo *bo)
> +{
> + if (ivpu_bo_cache_mode(bo) != DRM_IVPU_BO_CACHED)
> + set_pages_array_wb(bo->pages, bo->base.size >> PAGE_SHIFT);
> +
> + drm_gem_put_pages(&bo->base, bo->pages, true, false);
> + bo->pages = NULL;
> +}
> +
> +static int ivpu_bo_map_pages_locked(struct ivpu_bo *bo)
> +{
> + int npages = bo->base.size >> PAGE_SHIFT;
> + struct ivpu_device *vdev = ivpu_bo_to_vdev(bo);
> + struct sg_table *sgt;
> + int ret;
> +
> + sgt = drm_prime_pages_to_sg(&vdev->drm, bo->pages, npages);
> + if (IS_ERR(sgt)) {
> + ivpu_err(vdev, "Failed to allocate sgtable\n");
> + return PTR_ERR(sgt);
> + }
> +
> + ret = dma_map_sgtable(vdev->drm.dev, sgt, DMA_BIDIRECTIONAL, 0);
> + if (ret) {
> + ivpu_err(vdev, "Failed to map BO in IOMMU: %d\n", ret);
> + goto err_free_sgt;
> + }
> +
> + bo->sgt = sgt;
> + return 0;
> +
> +err_free_sgt:
> + kfree(sgt);
> + return ret;
> +}
> +
> +static void ivpu_bo_unmap_pages_locked(struct ivpu_bo *bo)
> +{
> + struct ivpu_device *vdev = ivpu_bo_to_vdev(bo);
> +
> + dma_unmap_sgtable(vdev->drm.dev, bo->sgt, DMA_BIDIRECTIONAL, 0);
> + sg_free_table(bo->sgt);
> + kfree(bo->sgt);
> + bo->sgt = NULL;
> +}
> +
> +static const struct ivpu_bo_ops shmem_ops = {
> + .type = IVPU_BO_TYPE_SHMEM,
> + .name = "shmem",
> + .alloc_pages = shmem_alloc_pages_locked,
> + .free_pages = shmem_free_pages_locked,
> + .map_pages = ivpu_bo_map_pages_locked,
> + .unmap_pages = ivpu_bo_unmap_pages_locked,
> +};
> +
> +static int __must_check userptr_alloc_pages_locked(struct ivpu_bo *bo)
> +{
> + unsigned int npages = bo->base.size >> PAGE_SHIFT;
> + struct page **pages;
> + int ret;
> +
> + pages = kvmalloc_array(npages, sizeof(*bo->pages), GFP_KERNEL);
> + if (!pages)
> + return -ENOMEM;
> +
> + ret = pin_user_pages_fast(bo->user_ptr & PAGE_MASK, npages,
> + FOLL_FORCE | FOLL_WRITE | FOLL_LONGTERM, pages);
You didn't fix this patch according to my comments in v4. Please
remove FOLL_FORCE and
use unpin_user_pages_dirty_lock (with true flag)
Thanks,
Oded
> + if (ret != npages) {
> + if (ret > 0)
> + goto err_unpin_pages;
> + goto err_free_pages;
> + }
> +
> + bo->pages = pages;
> + return 0;
> +
> +err_unpin_pages:
> + unpin_user_pages(pages, ret);
> +err_free_pages:
> + kvfree(pages);
> + return ret;
> +}
> +
> +static void userptr_free_pages_locked(struct ivpu_bo *bo)
> +{
> + unpin_user_pages(bo->pages, bo->base.size >> PAGE_SHIFT);
> + kvfree(bo->pages);
> + bo->pages = NULL;
> +}
> +
> +static const struct ivpu_bo_ops userptr_ops = {
> + .type = IVPU_BO_TYPE_USERPTR,
> + .name = "userptr",
> + .alloc_pages = userptr_alloc_pages_locked,
> + .free_pages = userptr_free_pages_locked,
> + .map_pages = ivpu_bo_map_pages_locked,
> + .unmap_pages = ivpu_bo_unmap_pages_locked,
> +};
> +
> +static int __must_check internal_alloc_pages_locked(struct ivpu_bo *bo)
> +{
> + unsigned int i, npages = bo->base.size >> PAGE_SHIFT;
> + struct page **pages;
> + int ret;
> +
> + pages = kvmalloc_array(npages, sizeof(*bo->pages), GFP_KERNEL);
> + if (!pages)
> + return -ENOMEM;
> +
> + for (i = 0; i < npages; i++) {
> + pages[i] = alloc_page(GFP_KERNEL | __GFP_HIGHMEM | __GFP_ZERO);
> + if (!pages[i]) {
> + ret = -ENOMEM;
> + goto err_free_pages;
> + }
> + cond_resched();
> + }
> +
> + bo->pages = pages;
> + return 0;
> +
> +err_free_pages:
> + while (i--)
> + put_page(pages[i]);
> + kvfree(pages);
> + return ret;
> +}
> +
> +static void internal_free_pages_locked(struct ivpu_bo *bo)
> +{
> + unsigned int i, npages = bo->base.size >> PAGE_SHIFT;
> +
> + for (i = 0; i < npages; i++)
> + put_page(bo->pages[i]);
> +
> + kvfree(bo->pages);
> + bo->pages = NULL;
> +}
> +
> +static const struct ivpu_bo_ops internal_ops = {
> + .type = IVPU_BO_TYPE_INTERNAL,
> + .name = "internal",
> + .alloc_pages = internal_alloc_pages_locked,
> + .free_pages = internal_free_pages_locked,
> + .map_pages = ivpu_bo_map_pages_locked,
> + .unmap_pages = ivpu_bo_unmap_pages_locked,
> +};
> +
> +static int __must_check ivpu_bo_alloc_and_map_pages_locked(struct ivpu_bo *bo)
> +{
> + struct ivpu_device *vdev = ivpu_bo_to_vdev(bo);
> + int ret;
> +
> + lockdep_assert_held(&bo->lock);
> + drm_WARN_ON(&vdev->drm, bo->sgt);
> +
> + ret = bo->ops->alloc_pages(bo);
> + if (ret) {
> + ivpu_err(vdev, "Failed to allocate pages for BO: %d", ret);
> + return ret;
> + }
> +
> + ret = bo->ops->map_pages(bo);
> + if (ret) {
> + ivpu_err(vdev, "Failed to map pages for BO: %d", ret);
> + goto err_free_pages;
> + }
> + return ret;
> +
> +err_free_pages:
> + bo->ops->free_pages(bo);
> + return ret;
> +}
> +
> +static void ivpu_bo_unmap_and_free_pages(struct ivpu_bo *bo)
> +{
> + mutex_lock(&bo->lock);
> +
> + WARN_ON(!bo->sgt);
> + bo->ops->unmap_pages(bo);
> + WARN_ON(bo->sgt);
> + bo->ops->free_pages(bo);
> + WARN_ON(bo->pages);
> +
> + mutex_unlock(&bo->lock);
> +}
> +
> +/*
> + * ivpu_bo_pin() - pin the backing physical pages and map them to VPU.
> + *
> + * This function pins physical memory pages, then maps the physical pages
> + * to IOMMU address space and finally updates the VPU MMU page tables
> + * to allow the VPU to translate VPU address to IOMMU address.
> + */
> +int __must_check ivpu_bo_pin(struct ivpu_bo *bo)
> +{
> + struct ivpu_device *vdev = ivpu_bo_to_vdev(bo);
> + int ret = 0;
> +
> + mutex_lock(&bo->lock);
> +
> + if (!bo->vpu_addr) {
> + ivpu_err(vdev, "vpu_addr not set for BO ctx_id: %d handle: %d\n",
> + bo->ctx->id, bo->handle);
> + ret = -EINVAL;
> + goto unlock;
> + }
> +
> + if (!bo->sgt) {
> + ret = ivpu_bo_alloc_and_map_pages_locked(bo);
> + if (ret)
> + goto unlock;
> + }
> +
> + if (!bo->mmu_mapped) {
> + ret = ivpu_mmu_context_map_sgt(vdev, bo->ctx, bo->vpu_addr, bo->sgt,
> + ivpu_bo_is_snooped(bo));
> + if (ret) {
> + ivpu_err(vdev, "Failed to map BO in MMU: %d\n", ret);
> + goto unlock;
> + }
> + bo->mmu_mapped = true;
> + }
> +
> +unlock:
> + mutex_unlock(&bo->lock);
> +
> + return ret;
> +}
> +
> +static int
> +ivpu_bo_alloc_vpu_addr(struct ivpu_bo *bo, struct ivpu_mmu_context *ctx,
> + const struct ivpu_addr_range *range)
> +{
> + struct ivpu_device *vdev = ivpu_bo_to_vdev(bo);
> + int ret;
> +
> + if (!range) {
> + if (bo->flags & DRM_IVPU_BO_HIGH_MEM)
> + range = &vdev->hw->ranges.user_high;
> + else
> + range = &vdev->hw->ranges.user_low;
> + }
> +
> + mutex_lock(&ctx->lock);
> + ret = ivpu_mmu_context_insert_node_locked(ctx, range, bo->base.size, &bo->mm_node);
> + if (!ret) {
> + bo->ctx = ctx;
> + bo->vpu_addr = bo->mm_node.start;
> + list_add_tail(&bo->ctx_node, &ctx->bo_list);
> + }
> + mutex_unlock(&ctx->lock);
> +
> + return ret;
> +}
> +
> +static void ivpu_bo_free_vpu_addr(struct ivpu_bo *bo)
> +{
> + struct ivpu_device *vdev = ivpu_bo_to_vdev(bo);
> + struct ivpu_mmu_context *ctx = bo->ctx;
> +
> + ivpu_dbg(vdev, BO, "remove from ctx: ctx %d vpu_addr 0x%llx allocated %d mmu_mapped %d\n",
> + ctx->id, bo->vpu_addr, (bool)bo->sgt, bo->mmu_mapped);
> +
> + mutex_lock(&bo->lock);
> +
> + if (bo->mmu_mapped) {
> + drm_WARN_ON(&vdev->drm, !bo->sgt);
> + ivpu_mmu_context_unmap_sgt(vdev, ctx, bo->vpu_addr, bo->sgt);
> + bo->mmu_mapped = false;
> + }
> +
> + mutex_lock(&ctx->lock);
> + list_del(&bo->ctx_node);
> + bo->vpu_addr = 0;
> + bo->ctx = NULL;
> + ivpu_mmu_context_remove_node_locked(ctx, &bo->mm_node);
> + mutex_unlock(&ctx->lock);
> +
> + mutex_unlock(&bo->lock);
> +}
> +
> +void ivpu_bo_remove_all_bos_from_context(struct ivpu_mmu_context *ctx)
> +{
> + struct ivpu_bo *bo, *tmp;
> +
> + list_for_each_entry_safe(bo, tmp, &ctx->bo_list, ctx_node)
> + ivpu_bo_free_vpu_addr(bo);
> +}
> +
> +static struct ivpu_bo *
> +ivpu_bo_alloc(struct ivpu_device *vdev, struct ivpu_mmu_context *mmu_context,
> + u64 size, u32 flags, const struct ivpu_bo_ops *ops,
> + const struct ivpu_addr_range *range, u64 user_ptr)
> +{
> + struct ivpu_bo *bo;
> + int ret = 0;
> +
> + if (drm_WARN_ON(&vdev->drm, size == 0 || !PAGE_ALIGNED(size)))
> + return ERR_PTR(-EINVAL);
> +
> + switch (flags & DRM_IVPU_BO_CACHE_MASK) {
> + case DRM_IVPU_BO_CACHED:
> + case DRM_IVPU_BO_UNCACHED:
> + case DRM_IVPU_BO_WC:
> + break;
> + default:
> + return ERR_PTR(-EINVAL);
> + }
> +
> + bo = kzalloc(sizeof(*bo), GFP_KERNEL);
> + if (!bo)
> + return ERR_PTR(-ENOMEM);
> +
> + mutex_init(&bo->lock);
> + bo->base.funcs = &ivpu_gem_funcs;
> + bo->flags = flags;
> + bo->ops = ops;
> + bo->user_ptr = user_ptr;
> +
> + if (ops->type == IVPU_BO_TYPE_SHMEM)
> + ret = drm_gem_object_init(&vdev->drm, &bo->base, size);
> + else
> + drm_gem_private_object_init(&vdev->drm, &bo->base, size);
> +
> + if (ret) {
> + ivpu_err(vdev, "Failed to initialize drm object\n");
> + goto err_free;
> + }
> +
> + if (flags & DRM_IVPU_BO_MAPPABLE) {
> + ret = drm_gem_create_mmap_offset(&bo->base);
> + if (ret) {
> + ivpu_err(vdev, "Failed to allocate mmap offset\n");
> + goto err_release;
> + }
> + }
> +
> + if (mmu_context) {
> + ret = ivpu_bo_alloc_vpu_addr(bo, mmu_context, range);
> + if (ret) {
> + ivpu_err(vdev, "Failed to add BO to context: %d\n", ret);
> + goto err_release;
> + }
> + }
> +
> + return bo;
> +
> +err_release:
> + drm_gem_object_release(&bo->base);
> +err_free:
> + kfree(bo);
> + return ERR_PTR(ret);
> +}
> +
> +static void ivpu_bo_free(struct drm_gem_object *obj)
> +{
> + struct ivpu_bo *bo = to_ivpu_bo(obj);
> + struct ivpu_device *vdev = ivpu_bo_to_vdev(bo);
> +
> + if (bo->ctx)
> + ivpu_dbg(vdev, BO, "free: ctx %d vpu_addr 0x%llx allocated %d mmu_mapped %d\n",
> + bo->ctx->id, bo->vpu_addr, (bool)bo->sgt, bo->mmu_mapped);
> + else
> + ivpu_dbg(vdev, BO, "free: ctx (released) allocated %d mmu_mapped %d\n",
> + (bool)bo->sgt, bo->mmu_mapped);
> +
> + drm_WARN_ON(&vdev->drm, !dma_resv_test_signaled(obj->resv, DMA_RESV_USAGE_READ));
> +
> + vunmap(bo->kvaddr);
> +
> + if (bo->ctx)
> + ivpu_bo_free_vpu_addr(bo);
> +
> + if (bo->sgt)
> + ivpu_bo_unmap_and_free_pages(bo);
> +
> + if (bo->base.import_attach)
> + drm_prime_gem_destroy(&bo->base, bo->sgt);
> +
> + drm_gem_object_release(&bo->base);
> +
> + mutex_destroy(&bo->lock);
> + kfree(bo);
> +}
> +
> +static int ivpu_bo_mmap(struct drm_gem_object *obj, struct vm_area_struct *vma)
> +{
> + struct ivpu_bo *bo = to_ivpu_bo(obj);
> + struct ivpu_device *vdev = ivpu_bo_to_vdev(bo);
> +
> + ivpu_dbg(vdev, BO, "mmap: ctx %u handle %u vpu_addr 0x%llx size %zu type %s",
> + bo->ctx->id, bo->handle, bo->vpu_addr, bo->base.size, bo->ops->name);
> +
> + if (obj->import_attach) {
> + /* Drop the reference drm_gem_mmap_obj() acquired.*/
> + drm_gem_object_put(obj);
> + vma->vm_private_data = NULL;
> + return dma_buf_mmap(obj->dma_buf, vma, 0);
> + }
> +
> + vma->vm_flags |= VM_PFNMAP | VM_DONTEXPAND;
> + vma->vm_page_prot = ivpu_bo_pgprot(bo, vm_get_page_prot(vma->vm_flags));
> +
> + return 0;
> +}
> +
> +static struct sg_table *ivpu_bo_get_sg_table(struct drm_gem_object *obj)
> +{
> + struct ivpu_bo *bo = to_ivpu_bo(obj);
> + loff_t npages = obj->size >> PAGE_SHIFT;
> + int ret = 0;
> +
> + mutex_lock(&bo->lock);
> +
> + if (!bo->sgt)
> + ret = ivpu_bo_alloc_and_map_pages_locked(bo);
> +
> + mutex_unlock(&bo->lock);
> +
> + if (ret)
> + return ERR_PTR(ret);
> +
> + return drm_prime_pages_to_sg(obj->dev, bo->pages, npages);
> +}
> +
> +static vm_fault_t ivpu_vm_fault(struct vm_fault *vmf)
> +{
> + struct vm_area_struct *vma = vmf->vma;
> + struct drm_gem_object *obj = vma->vm_private_data;
> + struct ivpu_bo *bo = to_ivpu_bo(obj);
> + loff_t npages = obj->size >> PAGE_SHIFT;
> + pgoff_t page_offset;
> + struct page *page;
> + vm_fault_t ret;
> + int err;
> +
> + mutex_lock(&bo->lock);
> +
> + if (!bo->sgt) {
> + err = ivpu_bo_alloc_and_map_pages_locked(bo);
> + if (err) {
> + ret = vmf_error(err);
> + goto unlock;
> + }
> + }
> +
> + /* We don't use vmf->pgoff since that has the fake offset */
> + page_offset = (vmf->address - vma->vm_start) >> PAGE_SHIFT;
> + if (page_offset >= npages) {
> + ret = VM_FAULT_SIGBUS;
> + } else {
> + page = bo->pages[page_offset];
> + ret = vmf_insert_pfn(vma, vmf->address, page_to_pfn(page));
> + }
> +
> +unlock:
> + mutex_unlock(&bo->lock);
> +
> + return ret;
> +}
> +
> +static const struct vm_operations_struct ivpu_vm_ops = {
> + .fault = ivpu_vm_fault,
> + .open = drm_gem_vm_open,
> + .close = drm_gem_vm_close,
> +};
> +
> +static const struct drm_gem_object_funcs ivpu_gem_funcs = {
> + .free = ivpu_bo_free,
> + .mmap = ivpu_bo_mmap,
> + .vm_ops = &ivpu_vm_ops,
> + .get_sg_table = ivpu_bo_get_sg_table,
> +};
> +
> +int
> +ivpu_bo_create_ioctl(struct drm_device *dev, void *data, struct drm_file *file)
> +{
> + struct ivpu_file_priv *file_priv = file->driver_priv;
> + struct ivpu_device *vdev = file_priv->vdev;
> + struct drm_ivpu_bo_create *args = data;
> + u64 size = PAGE_ALIGN(args->size);
> + struct ivpu_bo *bo;
> + int ret;
> +
> + if (args->flags & ~DRM_IVPU_BO_FLAGS)
> + return -EINVAL;
> +
> + if (size == 0)
> + return -EINVAL;
> +
> + bo = ivpu_bo_alloc(vdev, &file_priv->ctx, size, args->flags, &shmem_ops, NULL, 0);
> + if (IS_ERR(bo)) {
> + ivpu_err(vdev, "Failed to create BO: %pe (ctx %u size %llu flags 0x%x)",
> + bo, file_priv->ctx.id, args->size, args->flags);
> + return PTR_ERR(bo);
> + }
> +
> + ret = drm_gem_handle_create(file, &bo->base, &bo->handle);
> + if (!ret) {
> + args->vpu_addr = bo->vpu_addr;
> + args->handle = bo->handle;
> + }
> +
> + drm_gem_object_put(&bo->base);
> +
> + ivpu_dbg(vdev, BO, "alloc shmem: ctx %u vpu_addr 0x%llx size %zu flags 0x%x\n",
> + file_priv->ctx.id, bo->vpu_addr, bo->base.size, bo->flags);
> +
> + return ret;
> +}
> +
> +int
> +ivpu_bo_userptr_ioctl(struct drm_device *dev, void *data, struct drm_file *file)
> +{
> + struct ivpu_file_priv *file_priv = file->driver_priv;
> + struct ivpu_device *vdev = file_priv->vdev;
> + struct drm_ivpu_bo_userptr *args = data;
> + struct ivpu_bo *bo;
> + int ret;
> +
> + if (args->user_ptr == 0 || !PAGE_ALIGNED(args->user_ptr))
> + return -EINVAL;
> +
> + if (args->user_size == 0 || !PAGE_ALIGNED(args->user_size))
> + return -EINVAL;
> +
> + if (args->flags & ~DRM_IVPU_BO_HIGH_MEM)
> + return -EINVAL;
> +
> + if (!access_ok((const void __user *)args->user_ptr, args->user_size))
> + return -EFAULT;
> +
> + bo = ivpu_bo_alloc(vdev, &file_priv->ctx, args->user_size, args->flags,
> + &userptr_ops, NULL, args->user_ptr);
> + if (IS_ERR(bo)) {
> + ivpu_err(vdev, "Failed to create BO: %pe (ctx %u size %llu flags 0x%x)",
> + bo, file_priv->ctx.id, args->user_size, args->flags);
> + return PTR_ERR(bo);
> + }
> +
> + if (!bo)
> + return -ENOMEM;
> +
> + lockdep_set_class(&bo->lock, &userptr_bo_lock_class_key);
> +
> + ret = drm_gem_handle_create(file, &bo->base, &bo->handle);
> + if (!ret) {
> + args->vpu_addr = bo->vpu_addr;
> + args->handle = bo->handle;
> + }
> +
> + drm_gem_object_put(&bo->base);
> +
> + ivpu_dbg(vdev, BO, "alloc userptr: ctx %u vpu_addr 0x%llx size %zu flags 0x%x\n",
> + file_priv->ctx.id, bo->vpu_addr, bo->base.size, args->flags);
> +
> + return ret;
> +}
> +
> +struct ivpu_bo *
> +ivpu_bo_alloc_internal(struct ivpu_device *vdev, u64 vpu_addr, u64 size, u32 flags)
> +{
> + const struct ivpu_addr_range *range;
> + struct ivpu_addr_range fixed_range;
> + struct ivpu_bo *bo;
> + pgprot_t prot;
> + int ret;
> +
> + drm_WARN_ON(&vdev->drm, !PAGE_ALIGNED(vpu_addr));
> + drm_WARN_ON(&vdev->drm, !PAGE_ALIGNED(size));
> +
> + if (vpu_addr) {
> + fixed_range.start = vpu_addr;
> + fixed_range.end = vpu_addr + size;
> + range = &fixed_range;
> + } else {
> + range = &vdev->hw->ranges.global_low;
> + }
> +
> + bo = ivpu_bo_alloc(vdev, &vdev->gctx, size, flags, &internal_ops, range, 0);
> + if (IS_ERR(bo)) {
> + ivpu_err(vdev, "Failed to create BO: %pe (vpu_addr 0x%llx size %llu flags 0x%x)",
> + bo, vpu_addr, size, flags);
> + return NULL;
> + }
> +
> + ret = ivpu_bo_pin(bo);
> + if (ret)
> + goto err_put;
> +
> + if (ivpu_bo_cache_mode(bo) != DRM_IVPU_BO_CACHED)
> + drm_clflush_pages(bo->pages, bo->base.size >> PAGE_SHIFT);
> +
> + prot = ivpu_bo_pgprot(bo, PAGE_KERNEL);
> + bo->kvaddr = vmap(bo->pages, bo->base.size >> PAGE_SHIFT, VM_MAP, prot);
> + if (!bo->kvaddr) {
> + ivpu_err(vdev, "Failed to map BO into kernel virtual memory\n");
> + goto err_put;
> + }
> +
> + ivpu_dbg(vdev, BO, "alloc internal: ctx 0 vpu_addr 0x%llx size %zu flags 0x%x\n",
> + bo->vpu_addr, bo->base.size, flags);
> +
> + return bo;
> +
> +err_put:
> + drm_gem_object_put(&bo->base);
> + return NULL;
> +}
> +
> +void ivpu_bo_free_internal(struct ivpu_bo *bo)
> +{
> + drm_gem_object_put(&bo->base);
> +}
> +
> +struct drm_gem_object *ivpu_gem_prime_import(struct drm_device *dev, struct dma_buf *buf)
> +{
> + struct ivpu_device *vdev = to_ivpu_device(dev);
> + struct dma_buf_attachment *attach;
> + struct ivpu_bo *bo;
> +
> + attach = dma_buf_attach(buf, dev->dev);
> + if (IS_ERR(attach))
> + return ERR_CAST(attach);
> +
> + get_dma_buf(buf);
> +
> + bo = ivpu_bo_alloc(vdev, NULL, buf->size, DRM_IVPU_BO_MAPPABLE, &prime_ops, NULL, 0);
> + if (IS_ERR(bo)) {
> + ivpu_err(vdev, "Failed to import BO: %pe (size %lu)", bo, buf->size);
> + goto err_detach;
> + }
> +
> + lockdep_set_class(&bo->lock, &prime_bo_lock_class_key);
> +
> + bo->base.import_attach = attach;
> +
> + return &bo->base;
> +
> +err_detach:
> + dma_buf_detach(buf, attach);
> + dma_buf_put(buf);
> + return ERR_CAST(bo);
> +}
> +
> +int ivpu_bo_info_ioctl(struct drm_device *dev, void *data, struct drm_file *file)
> +{
> + struct ivpu_file_priv *file_priv = file->driver_priv;
> + struct ivpu_device *vdev = to_ivpu_device(dev);
> + struct drm_ivpu_bo_info *args = data;
> + struct drm_gem_object *obj;
> + struct ivpu_bo *bo;
> + int ret = 0;
> +
> + obj = drm_gem_object_lookup(file, args->handle);
> + if (!obj)
> + return -ENOENT;
> +
> + bo = to_ivpu_bo(obj);
> +
> + mutex_lock(&bo->lock);
> +
> + if (!bo->ctx) {
> + ret = ivpu_bo_alloc_vpu_addr(bo, &file_priv->ctx, NULL);
> + if (ret) {
> + ivpu_err(vdev, "Failed to allocate vpu_addr: %d\n", ret);
> + goto unlock;
> + }
> + }
> +
> + args->flags = bo->flags;
> + args->mmap_offset = drm_vma_node_offset_addr(&obj->vma_node);
> + args->vpu_addr = bo->vpu_addr;
> + args->size = obj->size;
> +unlock:
> + mutex_unlock(&bo->lock);
> + drm_gem_object_put(obj);
> + return ret;
> +}
> +
> +static void ivpu_bo_print_info(struct ivpu_bo *bo, struct drm_printer *p)
> +{
> + unsigned long dma_refcount = 0;
> +
> + if (bo->base.dma_buf && bo->base.dma_buf->file)
> + dma_refcount = atomic_long_read(&bo->base.dma_buf->file->f_count);
> +
> + drm_printf(p, "%5u %6d %16llx %10lu %10u %12lu %14s\n",
> + bo->ctx->id, bo->handle, bo->vpu_addr, bo->base.size,
> + kref_read(&bo->base.refcount), dma_refcount, bo->ops->name);
> +}
> +
> +void ivpu_bo_list(struct drm_device *dev, struct drm_printer *p)
> +{
> + struct ivpu_device *vdev = to_ivpu_device(dev);
> + struct ivpu_file_priv *file_priv;
> + unsigned long ctx_id;
> + struct ivpu_bo *bo;
> +
> + drm_printf(p, "%5s %6s %16s %10s %10s %12s %14s\n",
> + "ctx", "handle", "vpu_addr", "size", "refcount", "dma_refcount", "type");
> +
> + mutex_lock(&vdev->gctx.lock);
> + list_for_each_entry(bo, &vdev->gctx.bo_list, ctx_node)
> + ivpu_bo_print_info(bo, p);
> + mutex_unlock(&vdev->gctx.lock);
> +
> + xa_for_each(&vdev->context_xa, ctx_id, file_priv) {
> + file_priv = ivpu_file_priv_get_by_ctx_id(vdev, ctx_id);
> + if (!file_priv)
> + continue;
> +
> + mutex_lock(&file_priv->ctx.lock);
> + list_for_each_entry(bo, &file_priv->ctx.bo_list, ctx_node)
> + ivpu_bo_print_info(bo, p);
> + mutex_unlock(&file_priv->ctx.lock);
> +
> + ivpu_file_priv_put(&file_priv);
> + }
> +}
> +
> +void ivpu_bo_list_print(struct drm_device *dev)
> +{
> + struct drm_printer p = drm_info_printer(dev->dev);
> +
> + ivpu_bo_list(dev, &p);
> +}
> diff --git a/drivers/accel/ivpu/ivpu_gem.h b/drivers/accel/ivpu/ivpu_gem.h
> new file mode 100644
> index 000000000000..d71e6fe207d4
> --- /dev/null
> +++ b/drivers/accel/ivpu/ivpu_gem.h
> @@ -0,0 +1,128 @@
> +/* SPDX-License-Identifier: GPL-2.0-only */
> +/*
> + * Copyright (C) 2020-2023 Intel Corporation
> + */
> +#ifndef __IVPU_GEM_H__
> +#define __IVPU_GEM_H__
> +
> +#include <drm/drm_gem.h>
> +#include <drm/drm_mm.h>
> +
> +struct dma_buf;
> +struct ivpu_bo_ops;
> +struct ivpu_file_priv;
> +
> +struct ivpu_bo {
> + struct drm_gem_object base;
> + const struct ivpu_bo_ops *ops;
> +
> + struct ivpu_mmu_context *ctx;
> + struct list_head ctx_node;
> + struct drm_mm_node mm_node;
> +
> + struct mutex lock; /* Protects: pages, sgt, mmu_mapped */
> + struct sg_table *sgt;
> + struct page **pages;
> + bool mmu_mapped;
> +
> + void *kvaddr;
> + u64 vpu_addr;
> + u32 handle;
> + u32 flags;
> + uintptr_t user_ptr;
> +};
> +
> +enum ivpu_bo_type {
> + IVPU_BO_TYPE_SHMEM = 1,
> + IVPU_BO_TYPE_USERPTR,
> + IVPU_BO_TYPE_INTERNAL,
> + IVPU_BO_TYPE_PRIME,
> +};
> +
> +struct ivpu_bo_ops {
> + enum ivpu_bo_type type;
> + const char *name;
> + int (*alloc_pages)(struct ivpu_bo *bo);
> + void (*free_pages)(struct ivpu_bo *bo);
> + int (*map_pages)(struct ivpu_bo *bo);
> + void (*unmap_pages)(struct ivpu_bo *bo);
> +};
> +
> +int ivpu_bo_pin(struct ivpu_bo *bo);
> +void ivpu_bo_remove_all_bos_from_context(struct ivpu_mmu_context *ctx);
> +void ivpu_bo_list(struct drm_device *dev, struct drm_printer *p);
> +void ivpu_bo_list_print(struct drm_device *dev);
> +
> +struct ivpu_bo *
> +ivpu_bo_alloc_internal(struct ivpu_device *vdev, u64 vpu_addr, u64 size, u32 flags);
> +void ivpu_bo_free_internal(struct ivpu_bo *bo);
> +struct drm_gem_object *ivpu_gem_prime_import(struct drm_device *dev, struct dma_buf *dma_buf);
> +void ivpu_bo_unmap_sgt_and_remove_from_context(struct ivpu_bo *bo);
> +
> +int ivpu_bo_create_ioctl(struct drm_device *dev, void *data, struct drm_file *file);
> +int ivpu_bo_info_ioctl(struct drm_device *dev, void *data, struct drm_file *file);
> +int ivpu_bo_userptr_ioctl(struct drm_device *dev, void *data, struct drm_file *file);
> +int ivpu_bo_wait_ioctl(struct drm_device *dev, void *data, struct drm_file *file);
> +
> +static inline struct ivpu_bo *to_ivpu_bo(struct drm_gem_object *obj)
> +{
> + return container_of(obj, struct ivpu_bo, base);
> +}
> +
> +static inline struct page *ivpu_bo_get_page(struct ivpu_bo *bo, u64 offset)
> +{
> + if (offset > bo->base.size || !bo->pages)
> + return NULL;
> +
> + return bo->pages[offset / PAGE_SIZE];
> +}
> +
> +static inline u32 ivpu_bo_cache_mode(struct ivpu_bo *bo)
> +{
> + return bo->flags & DRM_IVPU_BO_CACHE_MASK;
> +}
> +
> +static inline bool ivpu_bo_is_snooped(struct ivpu_bo *bo)
> +{
> + return ivpu_bo_cache_mode(bo) == DRM_IVPU_BO_CACHED;
> +}
> +
> +static inline pgprot_t ivpu_bo_pgprot(struct ivpu_bo *bo, pgprot_t prot)
> +{
> + if (bo->flags & DRM_IVPU_BO_WC)
> + return pgprot_writecombine(prot);
> +
> + if (bo->flags & DRM_IVPU_BO_UNCACHED)
> + return pgprot_noncached(prot);
> +
> + return prot;
> +}
> +
> +static inline struct ivpu_device *ivpu_bo_to_vdev(struct ivpu_bo *bo)
> +{
> + return to_ivpu_device(bo->base.dev);
> +}
> +
> +static inline void *ivpu_to_cpu_addr(struct ivpu_bo *bo, u32 vpu_addr)
> +{
> + if (vpu_addr < bo->vpu_addr)
> + return NULL;
> +
> + if (vpu_addr >= (bo->vpu_addr + bo->base.size))
> + return NULL;
> +
> + return bo->kvaddr + (vpu_addr - bo->vpu_addr);
> +}
> +
> +static inline u32 cpu_to_vpu_addr(struct ivpu_bo *bo, void *cpu_addr)
> +{
> + if (cpu_addr < bo->kvaddr)
> + return 0;
> +
> + if (cpu_addr >= (bo->kvaddr + bo->base.size))
> + return 0;
> +
> + return bo->vpu_addr + (cpu_addr - bo->kvaddr);
> +}
> +
> +#endif /* __IVPU_GEM_H__ */
> diff --git a/include/uapi/drm/ivpu_accel.h b/include/uapi/drm/ivpu_accel.h
> index 543347df51a1..5f953ebafc9b 100644
> --- a/include/uapi/drm/ivpu_accel.h
> +++ b/include/uapi/drm/ivpu_accel.h
> @@ -17,6 +17,9 @@ extern "C" {
>
> #define DRM_IVPU_GET_PARAM 0x00
> #define DRM_IVPU_SET_PARAM 0x01
> +#define DRM_IVPU_BO_CREATE 0x02
> +#define DRM_IVPU_BO_INFO 0x03
> +#define DRM_IVPU_BO_USERPTR 0x04
>
> #define DRM_IOCTL_IVPU_GET_PARAM \
> DRM_IOWR(DRM_COMMAND_BASE + DRM_IVPU_GET_PARAM, struct drm_ivpu_param)
> @@ -24,6 +27,15 @@ extern "C" {
> #define DRM_IOCTL_IVPU_SET_PARAM \
> DRM_IOW(DRM_COMMAND_BASE + DRM_IVPU_SET_PARAM, struct drm_ivpu_param)
>
> +#define DRM_IOCTL_IVPU_BO_CREATE \
> + DRM_IOWR(DRM_COMMAND_BASE + DRM_IVPU_BO_CREATE, struct drm_ivpu_bo_create)
> +
> +#define DRM_IOCTL_IVPU_BO_INFO \
> + DRM_IOWR(DRM_COMMAND_BASE + DRM_IVPU_BO_INFO, struct drm_ivpu_bo_info)
> +
> +#define DRM_IOCTL_IVPU_BO_USERPTR \
> + DRM_IOWR(DRM_COMMAND_BASE + DRM_IVPU_BO_USERPTR, struct drm_ivpu_bo_userptr)
> +
> /**
> * DOC: contexts
> *
> @@ -92,6 +104,121 @@ struct drm_ivpu_param {
> __u64 value;
> };
>
> +#define DRM_IVPU_BO_HIGH_MEM 0x00000001
> +#define DRM_IVPU_BO_MAPPABLE 0x00000002
> +
> +#define DRM_IVPU_BO_CACHED 0x00000000
> +#define DRM_IVPU_BO_UNCACHED 0x00010000
> +#define DRM_IVPU_BO_WC 0x00020000
> +#define DRM_IVPU_BO_CACHE_MASK 0x00030000
> +
> +#define DRM_IVPU_BO_FLAGS \
> + (DRM_IVPU_BO_HIGH_MEM | \
> + DRM_IVPU_BO_MAPPABLE | \
> + DRM_IVPU_BO_CACHE_MASK)
> +
> +/**
> + * struct drm_ivpu_bo_create - Create BO backed by SHMEM
> + *
> + * Create GEM buffer object allocated in SHMEM memory.
> + */
> +struct drm_ivpu_bo_create {
> + /** @size: The size in bytes of the allocated memory */
> + __u64 size;
> +
> + /**
> + * @flags:
> + *
> + * Supported flags:
> + *
> + * %DRM_IVPU_BO_HIGH_MEM:
> + *
> + * Allocate VPU address from >4GB range.
> + * Buffer object with vpu address >4GB can be always accessed by the
> + * VPU DMA engine, but some HW generation may not be able to access
> + * this memory from then firmware running on the VPU management processor.
> + * Suitable for input, output and some scratch buffers.
> + *
> + * %DRM_IVPU_BO_MAPPABLE:
> + *
> + * Buffer object can be mapped using mmap().
> + *
> + * %DRM_IVPU_BO_CACHED:
> + *
> + * Allocated BO will be cached on host side (WB) and snooped on the VPU side.
> + * This is the default caching mode.
> + *
> + * %DRM_IVPU_BO_UNCACHED:
> + *
> + * Allocated BO will not be cached on host side nor snooped on the VPU side.
> + *
> + * %DRM_IVPU_BO_WC:
> + *
> + * Allocated BO will use write combining buffer for writes but reads will be
> + * uncached.
> + */
> + __u32 flags;
> +
> + /** @handle: Returned GEM object handle */
> + __u32 handle;
> +
> + /** @vpu_addr: Returned VPU virtual address */
> + __u64 vpu_addr;
> +};
> +
> +/**
> + * struct drm_ivpu_bo_info - Query buffer object info
> + */
> +struct drm_ivpu_bo_info {
> + /** @handle: Handle of the queried BO */
> + __u32 handle;
> +
> + /** @flags: Returned flags used to create the BO */
> + __u32 flags;
> +
> + /** @vpu_addr: Returned VPU virtual address */
> + __u64 vpu_addr;
> +
> + /**
> + * @mmap_offset:
> + *
> + * Returned offset to be used in mmap(). 0 in case the BO is not mappable.
> + */
> + __u64 mmap_offset;
> +
> + /** @size: Returned GEM object size, aligned to PAGE_SIZE */
> + __u64 size;
> +};
> +
> +/**
> + * struct drm_ivpu_bo_userptr - Create BO from user memory
> + *
> + * Create GEM buffer object from user allocated memory. The provided @user_ptr
> + * has to be page aligned. BOs created using this ioctl are always cacheable.
> + */
> +struct drm_ivpu_bo_userptr {
> + /** @user_ptr: User allocated pointer aligned to PAGE_SIZE */
> + __u64 user_ptr;
> +
> + /** @user_size: The size in bytes of the allocated memory */
> + __u64 user_size;
> +
> + /**
> + * @flags:
> + *
> + * Supported flags:
> + *
> + * %DRM_IVPU_BO_HIGH_MEM: see &drm_ivpu_bo_create->flags
> + */
> + __u32 flags;
> +
> + /** @handle: Returned GEM object handle */
> + __u32 handle;
> +
> + /** @vpu_addr: Returned VPU virtual address */
> + __u64 vpu_addr;
> +};
> +
> #if defined(__cplusplus)
> }
> #endif
> --
> 2.34.1
>
