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vkmemory: invalidate non-coherent memory when mapping for read

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Mapping non-coherent memory does not implicitly invalidate the host caches.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/6310>
This commit is contained in:
Chris Spencer 2024-03-06 12:15:37 +00:00 committed by GStreamer Marge Bot
parent 9412565221
commit 1032d58187
1 changed files with 25 additions and 0 deletions
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25
subprojects/gst-plugins-bad/gst-libs/gst/vulkan/gstvkmemory.c
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@ -144,6 +144,31 @@ _vk_mem_map_full (GstVulkanMemory * mem, GstMapInfo * info, gsize size)
}
}
if ((info->flags & GST_MAP_READ)
&& !(mem->properties & VK_MEMORY_PROPERTY_HOST_COHERENT_BIT)) {
VkMappedMemoryRange range = {
.sType = VK_STRUCTURE_TYPE_MAPPED_MEMORY_RANGE,
/* .pNext = */
.memory = mem->mem_ptr,
.offset = mem->vk_offset,
.size = VK_WHOLE_SIZE,
};
err = vkInvalidateMappedMemoryRanges (mem->device->device, 1u, &range);
if (gst_vulkan_error_to_g_error (err, &error,
"vkInvalidateMappedMemoryRanges") < 0) {
GST_CAT_ERROR (GST_CAT_VULKAN_MEMORY,
"Failed to invalidate mapped memory: %s", error->message);
g_clear_error (&error);
if (mem->map_count == 0) {
vkUnmapMemory (mem->device->device, mem->mem_ptr);
mem->mapping = NULL;
}
g_mutex_unlock (&mem->lock);
return NULL;
}
}
mem->map_count++;
data = mem->mapping;
g_mutex_unlock (&mem->lock);