panfrost/vulkan/panvk_image.c

/*
 * Copyright © 2021 Collabora Ltd.
 *
 * Derived from tu_image.c which is:
 * Copyright © 2016 Red Hat.
 * Copyright © 2016 Bas Nieuwenhuizen
 * Copyright © 2015 Intel Corporation
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice (including the next
 * paragraph) shall be included in all copies or substantial portions of the
 * Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
 * DEALINGS IN THE SOFTWARE.
 */

#include "pan_props.h"

#include "panvk_device.h"
#include "panvk_device_memory.h"
#include "panvk_entrypoints.h"
#include "panvk_image.h"
#include "panvk_instance.h"
#include "panvk_physical_device.h"

#include "drm-uapi/drm_fourcc.h"
#include "util/u_atomic.h"
#include "util/u_debug.h"
#include "util/u_drm.h"

#include "vk_format.h"
#include "vk_log.h"
#include "vk_object.h"
#include "vk_util.h"

static bool
panvk_image_can_use_mod(struct panvk_image *image, uint64_t mod)
{
   struct panvk_physical_device *phys_dev =
      to_panvk_physical_device(image->vk.base.device->physical);
   unsigned arch = pan_arch(phys_dev->kmod.props.gpu_prod_id);
   struct panvk_instance *instance =
      to_panvk_instance(image->vk.base.device->physical->instance);
   enum pipe_format pfmt = vk_format_to_pipe_format(image->vk.format);
   bool forced_linear = (instance->debug_flags & PANVK_DEBUG_LINEAR) ||
                        image->vk.tiling == VK_IMAGE_TILING_LINEAR ||
                        image->vk.image_type == VK_IMAGE_TYPE_1D;

   /* If the image is meant to be linear, don't bother testing the
    * other cases. */
   if (forced_linear)
      return mod == DRM_FORMAT_MOD_LINEAR;

   if (drm_is_afbc(mod)) {
      /* Disallow AFBC if either of these is true
       * - PANVK_DEBUG does not have the 'afbc' flag set
       * - storage image views are requested
       * - this is a multisample image
       * - the GPU doesn't support AFBC
       * - the format is not AFBC-able
       * - tiling is set to linear
       * - this is a 1D image
       * - this is a 3D image on a pre-v7 GPU
       * - this is a mutable format image on v7
       */
      if (!(instance->debug_flags & PANVK_DEBUG_AFBC) ||
          ((image->vk.usage | image->vk.stencil_usage) &
           VK_IMAGE_USAGE_STORAGE_BIT) ||
          image->vk.samples > 1 ||
          !panfrost_query_afbc(&phys_dev->kmod.props) ||
          !panfrost_format_supports_afbc(arch, pfmt) ||
          image->vk.tiling == VK_IMAGE_TILING_LINEAR ||
          image->vk.image_type == VK_IMAGE_TYPE_1D ||
          (image->vk.image_type == VK_IMAGE_TYPE_3D && arch < 7) ||
          ((image->vk.create_flags & VK_IMAGE_CREATE_MUTABLE_FORMAT_BIT) &&
           arch == 7))
         return false;

      const struct util_format_description *fdesc =
         util_format_description(pfmt);
      bool is_rgb = fdesc->colorspace == UTIL_FORMAT_COLORSPACE_RGB ||
                    fdesc->colorspace == UTIL_FORMAT_COLORSPACE_SRGB;

      if ((mod & AFBC_FORMAT_MOD_YTR) && (!is_rgb || fdesc->nr_channels >= 3))
         return false;

      /* We assume all other unsupported AFBC modes have been filtered out
       * through pan_best_modifiers[]. */
      return true;
   }

   if (mod == DRM_FORMAT_MOD_ARM_16X16_BLOCK_U_INTERLEAVED) {
      /* If we're dealing with a compressed format that requires non-compressed
       * views we can't use U_INTERLEAVED tiling because the tiling is different
       * between compressed and non-compressed formats. If we wanted to support
       * format re-interpretation we would have to specialize the shaders
       * accessing non-compressed image views (coordinate patching for
       * sampled/storage image, frag_coord patching for color attachments). Let's
       * keep things simple for now and make all compressed images that
       * have VK_IMAGE_CREATE_BLOCK_TEXEL_VIEW_COMPATIBLE_BIT set linear. */
      return !(image->vk.create_flags &
               VK_IMAGE_CREATE_BLOCK_TEXEL_VIEW_COMPATIBLE_BIT);
   }

   /* If we get there, it must be linear to be supported. */
   return mod == DRM_FORMAT_MOD_LINEAR;
}

static uint64_t
panvk_image_get_explicit_mod(
   struct panvk_image *image,
   const VkImageDrmFormatModifierExplicitCreateInfoEXT *explicit)
{
   uint64_t mod = explicit->drmFormatModifier;

   assert(!vk_format_is_depth_or_stencil(image->vk.format));
   assert(image->vk.samples == 1);
   assert(image->vk.array_layers == 1);
   assert(image->vk.image_type != VK_IMAGE_TYPE_3D);
   assert(explicit->drmFormatModifierPlaneCount == 1);
   assert(panvk_image_can_use_mod(image, mod));

   return mod;
}

static uint64_t
panvk_image_get_mod_from_list(struct panvk_image *image,
                              const uint64_t *mods, uint32_t mod_count)
{
   for (unsigned i = 0; i < PAN_MODIFIER_COUNT; ++i) {
      if (!panvk_image_can_use_mod(image, pan_best_modifiers[i]))
         continue;

      if (!mod_count ||
          drm_find_modifier(pan_best_modifiers[i], mods, mod_count))
         return pan_best_modifiers[i];
   }

   /* If we reached that point without finding a proper modifier, there's
    * a serious issue. */
   assert(!"Invalid modifier");
   return DRM_FORMAT_MOD_INVALID;
}

static uint64_t
panvk_image_get_mod(struct panvk_image *image,
                    const VkImageCreateInfo *pCreateInfo)
{
   if (pCreateInfo->tiling == VK_IMAGE_TILING_DRM_FORMAT_MODIFIER_EXT) {
      const VkImageDrmFormatModifierListCreateInfoEXT *mod_list =
         vk_find_struct_const(pCreateInfo->pNext,
                              IMAGE_DRM_FORMAT_MODIFIER_LIST_CREATE_INFO_EXT);
      const VkImageDrmFormatModifierExplicitCreateInfoEXT *explicit_mod =
         vk_find_struct_const(
            pCreateInfo->pNext,
            IMAGE_DRM_FORMAT_MODIFIER_EXPLICIT_CREATE_INFO_EXT);

      if (explicit_mod)
         return panvk_image_get_explicit_mod(image, explicit_mod);

      if (mod_list)
         return panvk_image_get_mod_from_list(image,
                   mod_list->pDrmFormatModifiers,
                   mod_list->drmFormatModifierCount);

      assert(!"Missing modifier info");
   }

   return panvk_image_get_mod_from_list(image, NULL, 0);
}

static enum mali_texture_dimension
panvk_image_type_to_mali_tex_dim(VkImageType type)
{
   switch (type) {
   case VK_IMAGE_TYPE_1D:
      return MALI_TEXTURE_DIMENSION_1D;
   case VK_IMAGE_TYPE_2D:
      return MALI_TEXTURE_DIMENSION_2D;
   case VK_IMAGE_TYPE_3D:
      return MALI_TEXTURE_DIMENSION_3D;
   default:
      unreachable("Invalid image type");
   }
}

static void
panvk_image_init_layouts(struct panvk_image *image,
                         const VkImageCreateInfo *pCreateInfo)
{
   struct panvk_physical_device *phys_dev =
      to_panvk_physical_device(image->vk.base.device->physical);
   unsigned arch = pan_arch(phys_dev->kmod.props.gpu_prod_id);
   const VkImageDrmFormatModifierExplicitCreateInfoEXT *explicit_info =
      vk_find_struct_const(
         pCreateInfo->pNext,
         IMAGE_DRM_FORMAT_MODIFIER_EXPLICIT_CREATE_INFO_EXT);

   image->plane_count = vk_format_get_plane_count(pCreateInfo->format);

   /* Z32_S8X24 is not supported on v9+, and we don't want to use it
    * on v7- anyway, because it's less efficient than the multiplanar
    * alternative.
    */
   if (image->vk.format == VK_FORMAT_D32_SFLOAT_S8_UINT)
      image->plane_count = 2;

   for (uint8_t plane = 0; plane < image->plane_count; plane++) {
      VkFormat format =
         (image->vk.format == VK_FORMAT_D32_SFLOAT_S8_UINT) ?
         ((plane == 0) ? VK_FORMAT_D32_SFLOAT : VK_FORMAT_S8_UINT) :
         image->vk.format;

      struct pan_image_explicit_layout plane_layout;
      if (explicit_info)
         plane_layout = (struct pan_image_explicit_layout){
            .offset = explicit_info->pPlaneLayouts[plane].offset,
            .row_stride = explicit_info->pPlaneLayouts[plane].rowPitch,
         };

      image->planes[plane].layout = (struct pan_image_layout){
         .format = vk_format_to_pipe_format(format),
         .dim = panvk_image_type_to_mali_tex_dim(image->vk.image_type),
         .width = image->vk.extent.width,
         .height = image->vk.extent.height,
         .depth = image->vk.extent.depth,
         .array_size = image->vk.array_layers,
         .nr_samples = image->vk.samples,
         .nr_slices = image->vk.mip_levels,
      };

      image->planes[plane].layout.modifier = image->vk.drm_format_mod;
      pan_image_layout_init(arch, &image->planes[plane].layout,
                            explicit_info ? &plane_layout : NULL);
   }
}

static void
panvk_image_pre_mod_select_meta_adjustments(struct panvk_image *image)
{
   const VkImageAspectFlags aspects = vk_format_aspects(image->vk.format);

   /* We do image blit/resolve with vk_meta, so when an image is flagged as
    * being a potential transfer source, we also need to add the sampled usage.
    */
   if (image->vk.usage & VK_IMAGE_USAGE_TRANSFER_SRC_BIT) {
      image->vk.usage |= VK_IMAGE_USAGE_SAMPLED_BIT;
      if (aspects & VK_IMAGE_ASPECT_STENCIL_BIT)
         image->vk.stencil_usage |= VK_IMAGE_USAGE_SAMPLED_BIT;
   }

   if (image->vk.usage & VK_IMAGE_USAGE_TRANSFER_DST_BIT) {
      /* Similarly, image that can be a transfer destination can be attached
       * as a color or depth-stencil attachment by vk_meta. */
      if (aspects & VK_IMAGE_ASPECT_DEPTH_BIT)
         image->vk.usage |= VK_IMAGE_USAGE_DEPTH_STENCIL_ATTACHMENT_BIT;

      if (aspects & VK_IMAGE_ASPECT_STENCIL_BIT)
         image->vk.stencil_usage |= VK_IMAGE_USAGE_DEPTH_STENCIL_ATTACHMENT_BIT;

      if (aspects & VK_IMAGE_ASPECT_COLOR_BIT) {
         image->vk.usage |= VK_IMAGE_USAGE_COLOR_ATTACHMENT_BIT;
         image->vk.usage |= VK_IMAGE_USAGE_STORAGE_BIT;
      }

      /* vk_meta creates 2D array views of 3D images. */
      if (image->vk.image_type == VK_IMAGE_TYPE_3D)
         image->vk.create_flags |= VK_IMAGE_CREATE_2D_ARRAY_COMPATIBLE_BIT;
   }

   /* Needed for resolve operations. */
   if (image->vk.usage & VK_IMAGE_USAGE_COLOR_ATTACHMENT_BIT)
      image->vk.usage |= VK_IMAGE_USAGE_SAMPLED_BIT;

   if (image->vk.usage & VK_IMAGE_USAGE_DEPTH_STENCIL_ATTACHMENT_BIT) {
      if (aspects & VK_IMAGE_ASPECT_DEPTH_BIT)
         image->vk.usage |= VK_IMAGE_USAGE_SAMPLED_BIT;

      if (aspects & VK_IMAGE_ASPECT_STENCIL_BIT)
         image->vk.stencil_usage |= VK_IMAGE_USAGE_SAMPLED_BIT;
   }

   if ((image->vk.usage &
        (VK_IMAGE_USAGE_TRANSFER_DST_BIT | VK_IMAGE_USAGE_TRANSFER_SRC_BIT)) &&
       vk_format_is_compressed(image->vk.format)) {
      /* We need to be able to create RGBA views of compressed formats for
       * vk_meta copies. */
      image->vk.create_flags |= VK_IMAGE_CREATE_MUTABLE_FORMAT_BIT |
                                VK_IMAGE_CREATE_BLOCK_TEXEL_VIEW_COMPATIBLE_BIT;
   }
}

static uint64_t
panvk_image_get_total_size(const struct panvk_image *image)
{
   uint64_t size = 0;
   for (uint8_t plane = 0; plane < image->plane_count; plane++)
      size += image->planes[plane].layout.data_size;
   return size;
}

static bool
is_disjoint(struct panvk_image *image)
{
   assert((image->plane_count > 1 &&
           image->vk.format != VK_FORMAT_D32_SFLOAT_S8_UINT) ||
          !(image->vk.create_flags & VK_IMAGE_CREATE_DISJOINT_BIT));
   return image->vk.create_flags & VK_IMAGE_CREATE_DISJOINT_BIT;
}

static void
panvk_image_init(struct panvk_device *dev, struct panvk_image *image,
                 const VkImageCreateInfo *pCreateInfo)
{
   /* Add any create/usage flags that might be needed for meta operations.
    * This is run before the modifier selection because some
    * usage/create_flags influence the modifier selection logic. */
   panvk_image_pre_mod_select_meta_adjustments(image);

   /* Now that we've patched the create/usage flags, we can proceed with the
    * modifier selection. */
   image->vk.drm_format_mod = panvk_image_get_mod(image, pCreateInfo);
   panvk_image_init_layouts(image, pCreateInfo);
}

VKAPI_ATTR VkResult VKAPI_CALL
panvk_CreateImage(VkDevice device, const VkImageCreateInfo *pCreateInfo,
                  const VkAllocationCallbacks *pAllocator, VkImage *pImage)
{
   VK_FROM_HANDLE(panvk_device, dev, device);
   struct panvk_physical_device *phys_dev =
      to_panvk_physical_device(dev->vk.physical);

   const VkImageSwapchainCreateInfoKHR *swapchain_info =
      vk_find_struct_const(pCreateInfo->pNext, IMAGE_SWAPCHAIN_CREATE_INFO_KHR);
   if (swapchain_info && swapchain_info->swapchain != VK_NULL_HANDLE) {
      return wsi_common_create_swapchain_image(&phys_dev->wsi_device,
                                               pCreateInfo,
                                               swapchain_info->swapchain,
                                               pImage);
   }

   struct panvk_image *image =
      vk_image_create(&dev->vk, pCreateInfo, pAllocator, sizeof(*image));
   if (!image)
      return panvk_error(device, VK_ERROR_OUT_OF_HOST_MEMORY);

   panvk_image_init(dev, image, pCreateInfo);

   /*
    * From the Vulkan spec:
    *
    *    If the size of the resultant image would exceed maxResourceSize, then
    *    vkCreateImage must fail and return VK_ERROR_OUT_OF_DEVICE_MEMORY.
    */
   if (panvk_image_get_total_size(image) > UINT32_MAX) {
      vk_image_destroy(&dev->vk, pAllocator, &image->vk);
      return panvk_error(device, VK_ERROR_OUT_OF_DEVICE_MEMORY);
   }

   *pImage = panvk_image_to_handle(image);
   return VK_SUCCESS;
}

VKAPI_ATTR void VKAPI_CALL
panvk_DestroyImage(VkDevice _device, VkImage _image,
                   const VkAllocationCallbacks *pAllocator)
{
   VK_FROM_HANDLE(panvk_device, device, _device);
   VK_FROM_HANDLE(panvk_image, image, _image);

   if (!image)
      return;

   if (image->bo)
      pan_kmod_bo_put(image->bo);

   vk_image_destroy(&device->vk, pAllocator, &image->vk);
}

VKAPI_ATTR void VKAPI_CALL
panvk_GetImageSubresourceLayout(VkDevice _device, VkImage _image,
                                const VkImageSubresource *pSubresource,
                                VkSubresourceLayout *pLayout)
{
   VK_FROM_HANDLE(panvk_image, image, _image);

   unsigned plane =
      panvk_plane_index(image->vk.format, pSubresource->aspectMask);
   assert(plane < PANVK_MAX_PLANES);

   const struct pan_image_slice_layout *slice_layout =
      &image->planes[plane].layout.slices[pSubresource->mipLevel];

   uint64_t base_offset = 0;
   if (!is_disjoint(image)) {
      for (uint8_t plane_idx = 0; plane_idx < plane; plane_idx++)
         base_offset += image->planes[plane_idx].layout.data_size;
   }

   pLayout->offset = base_offset +
      slice_layout->offset + (pSubresource->arrayLayer *
                              image->planes[plane].layout.array_stride);
   pLayout->size = slice_layout->size;
   pLayout->rowPitch = slice_layout->row_stride;
   pLayout->arrayPitch = image->planes[plane].layout.array_stride;
   pLayout->depthPitch = slice_layout->surface_stride;
}

VKAPI_ATTR void VKAPI_CALL
panvk_GetImageMemoryRequirements2(VkDevice device,
                                  const VkImageMemoryRequirementsInfo2 *pInfo,
                                  VkMemoryRequirements2 *pMemoryRequirements)
{
   VK_FROM_HANDLE(panvk_image, image, pInfo->image);

   const uint64_t alignment = 4096;
   const VkImagePlaneMemoryRequirementsInfo *plane_info =
      vk_find_struct_const(pInfo->pNext, IMAGE_PLANE_MEMORY_REQUIREMENTS_INFO);
   const bool disjoint = is_disjoint(image);
   const VkImageAspectFlags aspects =
      disjoint ? plane_info->planeAspect : image->vk.aspects;
   uint8_t plane = panvk_plane_index(image->vk.format, aspects);
   const uint64_t size =
      disjoint ? image->planes[plane].layout.data_size :
      panvk_image_get_total_size(image);

   pMemoryRequirements->memoryRequirements.memoryTypeBits = 1;
   pMemoryRequirements->memoryRequirements.alignment = alignment;
   pMemoryRequirements->memoryRequirements.size = size;

   vk_foreach_struct_const(ext, pMemoryRequirements->pNext) {
      switch (ext->sType) {
      case VK_STRUCTURE_TYPE_MEMORY_DEDICATED_REQUIREMENTS: {
         VkMemoryDedicatedRequirements *dedicated = (void *)ext;
         dedicated->requiresDedicatedAllocation = false;
         dedicated->prefersDedicatedAllocation = dedicated->requiresDedicatedAllocation;
         break;
      }
      default:
         vk_debug_ignored_stype(ext->sType);
         break;
      }
   }
}

VKAPI_ATTR void VKAPI_CALL
panvk_GetDeviceImageMemoryRequirements(VkDevice device,
                                       const VkDeviceImageMemoryRequirements *pInfo,
                                       VkMemoryRequirements2 *pMemoryRequirements)
{
   VK_FROM_HANDLE(panvk_device, dev, device);

   struct panvk_image image;
   vk_image_init(&dev->vk, &image.vk, pInfo->pCreateInfo);
   panvk_image_init(dev, &image, pInfo->pCreateInfo);

   VkImageMemoryRequirementsInfo2 info2 = {
      .sType = VK_STRUCTURE_TYPE_IMAGE_MEMORY_REQUIREMENTS_INFO_2,
      .image = panvk_image_to_handle(&image),
   };
   panvk_GetImageMemoryRequirements2(device, &info2, pMemoryRequirements);
}

VKAPI_ATTR void VKAPI_CALL
panvk_GetImageSparseMemoryRequirements2(
   VkDevice device, const VkImageSparseMemoryRequirementsInfo2 *pInfo,
   uint32_t *pSparseMemoryRequirementCount,
   VkSparseImageMemoryRequirements2 *pSparseMemoryRequirements)
{
   /* Sparse images are not yet supported. */
   *pSparseMemoryRequirementCount = 0;
}

VKAPI_ATTR void VKAPI_CALL
panvk_GetDeviceImageSparseMemoryRequirements(VkDevice device,
                                             const VkDeviceImageMemoryRequirements *pInfo,
                                             uint32_t *pSparseMemoryRequirementCount,
                                             VkSparseImageMemoryRequirements2 *pSparseMemoryRequirements)
{
   /* Sparse images are not yet supported. */
   *pSparseMemoryRequirementCount = 0;
}

static void
panvk_image_plane_bind(struct pan_image *plane, struct pan_kmod_bo *bo,
                       uint64_t base, uint64_t offset)
{
   plane->data.base = base;
   plane->data.offset = offset;
   /* Reset the AFBC headers */
   if (drm_is_afbc(plane->layout.modifier)) {
      /* Transient CPU mapping */
      void *bo_base = pan_kmod_bo_mmap(bo, 0, pan_kmod_bo_size(bo),
                                       PROT_WRITE, MAP_SHARED, NULL);

      assert(bo_base != MAP_FAILED);

      for (unsigned layer = 0; layer < plane->layout.array_size;
           layer++) {
         for (unsigned level = 0; level < plane->layout.nr_slices;
              level++) {
            void *header = bo_base + plane->data.offset +
                           (layer * plane->layout.array_stride) +
                           plane->layout.slices[level].offset;
            memset(header, 0,
                   plane->layout.slices[level].afbc.header_size);
         }
      }

      ASSERTED int ret = os_munmap(bo_base, pan_kmod_bo_size(bo));
      assert(!ret);
   }
}

VKAPI_ATTR VkResult VKAPI_CALL
panvk_BindImageMemory2(VkDevice device, uint32_t bindInfoCount,
                       const VkBindImageMemoryInfo *pBindInfos)
{
   const VkBindImageMemorySwapchainInfoKHR *swapchain_info =
      vk_find_struct_const(pBindInfos->pNext, BIND_IMAGE_MEMORY_SWAPCHAIN_INFO_KHR);

   for (uint32_t i = 0; i < bindInfoCount; ++i) {
      VK_FROM_HANDLE(panvk_image, image, pBindInfos[i].image);
      struct pan_kmod_bo *old_bo = image->bo;

      if (swapchain_info && swapchain_info->swapchain != VK_NULL_HANDLE) {
         VkImage wsi_vk_image = wsi_common_get_image(swapchain_info->swapchain,
                                                   swapchain_info->imageIndex);
         VK_FROM_HANDLE(panvk_image, wsi_image, wsi_vk_image);

         assert(image->plane_count == 1);
         assert(wsi_image->plane_count == 1);

         image->bo = pan_kmod_bo_get(wsi_image->bo);
         panvk_image_plane_bind(&image->planes[0], image->bo,
                                wsi_image->planes[0].data.base,
                                wsi_image->planes[0].data.offset);
      } else {
         VK_FROM_HANDLE(panvk_device_memory, mem, pBindInfos[i].memory);
         assert(mem);
         image->bo = pan_kmod_bo_get(mem->bo);
         uint64_t offset = pBindInfos[i].memoryOffset;
         if (is_disjoint(image)) {
            const VkBindImagePlaneMemoryInfo *plane_info =
               vk_find_struct_const(pBindInfos[i].pNext,
                                    BIND_IMAGE_PLANE_MEMORY_INFO);
            uint8_t plane =
               panvk_plane_index(image->vk.format, plane_info->planeAspect);
            panvk_image_plane_bind(&image->planes[plane], image->bo,
                                   mem->addr.dev, offset);
         } else {
            for (unsigned plane = 0; plane < image->plane_count; plane++) {
               panvk_image_plane_bind(&image->planes[plane], image->bo,
                                      mem->addr.dev, offset);
               offset += image->planes[plane].layout.data_size;
            }
         }
      }

      pan_kmod_bo_put(old_bo);
   }

   return VK_SUCCESS;
}