[Mesa-dev] [RFC 4/7] anv/android: support import/export of AHardwareBuffer objects
Tapani Pälli
tapani.palli at intel.com
Fri Aug 17 09:15:36 UTC 2018
v2: add support for non-image buffers (AHARDWAREBUFFER_FORMAT_BLOB)
Signed-off-by: Tapani Pälli <tapani.palli at intel.com>
---
src/intel/vulkan/anv_android.c | 127 +++++++++++++++++++++++++++++++++++++++++
src/intel/vulkan/anv_device.c | 50 +++++++++++++++-
src/intel/vulkan/anv_private.h | 18 ++++++
3 files changed, 194 insertions(+), 1 deletion(-)
diff --git a/src/intel/vulkan/anv_android.c b/src/intel/vulkan/anv_android.c
index 4a6b6fa34a9..17d1c5b44ce 100644
--- a/src/intel/vulkan/anv_android.c
+++ b/src/intel/vulkan/anv_android.c
@@ -187,6 +187,133 @@ anv_GetAndroidHardwareBufferPropertiesANDROID(
return VK_SUCCESS;
}
+VkResult
+anv_GetMemoryAndroidHardwareBufferANDROID(
+ VkDevice device_h,
+ const VkMemoryGetAndroidHardwareBufferInfoANDROID *pInfo,
+ struct AHardwareBuffer **pBuffer)
+{
+ ANV_FROM_HANDLE(anv_device_memory, mem, pInfo->memory);
+
+ /* Some quotes from Vulkan spec:
+ *
+ * "If the device memory was created by importing an Android hardware
+ * buffer, vkGetMemoryAndroidHardwareBufferANDROID must return that same
+ * Android hardware buffer object."
+ *
+ * "VK_EXTERNAL_MEMORY_HANDLE_TYPE_ANDROID_HARDWARE_BUFFER_BIT_ANDROID must
+ * have been included in VkExportMemoryAllocateInfoKHR::handleTypes when
+ * memory was created."
+ */
+ if (mem->ahw) {
+ *pBuffer = mem->ahw;
+ /* Increase refcount. */
+ AHardwareBuffer_acquire(mem->ahw);
+ return VK_SUCCESS;
+ }
+
+ return VK_ERROR_INVALID_EXTERNAL_HANDLE_KHR;
+}
+
+/*
+ * Called from anv_AllocateMemory when import AHardwareBuffer.
+ */
+VkResult
+anv_import_ahw_memory(VkDevice device_h,
+ struct anv_device_memory *mem,
+ const VkImportAndroidHardwareBufferInfoANDROID *info)
+{
+ ANV_FROM_HANDLE(anv_device, device, device_h);
+
+ /* Get a description of buffer contents. */
+ AHardwareBuffer_Desc desc;
+ AHardwareBuffer_describe(info->buffer, &desc);
+ VkResult result = VK_SUCCESS;
+
+ /* Import from AHardwareBuffer to anv_device_memory. */
+ const native_handle_t *handle =
+ AHardwareBuffer_getNativeHandle(info->buffer);
+
+ int dma_buf = (handle && handle->numFds) ? handle->data[0] : -1;
+ if (dma_buf < 0)
+ return VK_ERROR_INVALID_EXTERNAL_HANDLE_KHR;
+
+ uint64_t bo_flags = 0;
+ if (device->instance->physicalDevice.supports_48bit_addresses)
+ bo_flags |= EXEC_OBJECT_SUPPORTS_48B_ADDRESS;
+ if (device->instance->physicalDevice.use_softpin)
+ bo_flags |= EXEC_OBJECT_PINNED;
+
+ result = anv_bo_cache_import(device, &device->bo_cache,
+ dma_buf, bo_flags, &mem->bo);
+ if (result != VK_SUCCESS)
+ return result;
+
+ /* "If the vkAllocateMemory command succeeds, the implementation must
+ * acquire a reference to the imported hardware buffer, which it must
+ * release when the device memory object is freed. If the command fails,
+ * the implementation must not retain a reference."
+ */
+ AHardwareBuffer_acquire(info->buffer);
+ mem->ahw = info->buffer;
+
+ return result;
+}
+
+VkResult
+anv_create_ahw_memory(VkDevice device_h,
+ struct anv_device_memory *mem,
+ const VkMemoryAllocateInfo *pAllocateInfo)
+{
+ ANV_FROM_HANDLE(anv_device, dev, device_h);
+
+ const VkMemoryDedicatedAllocateInfo *dedicated_info =
+ vk_find_struct_const(pAllocateInfo->pNext,
+ MEMORY_DEDICATED_ALLOCATE_INFO);
+
+ unsigned w = 0;
+ unsigned h = 1;
+ unsigned format = 0;
+ unsigned usage = 0;
+
+ /* If caller passed dedicated information. */
+ if (dedicated_info && dedicated_info->image) {
+ ANV_FROM_HANDLE(anv_image, image, dedicated_info->image);
+ w = image->extent.width;
+ h = image->extent.height;
+ format = android_format_from_vk(image->vk_format);
+ usage = AHARDWAREBUFFER_USAGE_GPU_COLOR_OUTPUT;
+ } else if (dedicated_info && dedicated_info->buffer) {
+ ANV_FROM_HANDLE(anv_buffer, buffer, dedicated_info->buffer);
+ w = buffer->size;
+ format = AHARDWAREBUFFER_FORMAT_BLOB;
+ usage = AHARDWAREBUFFER_USAGE_CPU_READ_OFTEN |
+ AHARDWAREBUFFER_USAGE_CPU_WRITE_OFTEN;
+ } else {
+ w = pAllocateInfo->allocationSize;
+ format = AHARDWAREBUFFER_FORMAT_BLOB;
+ usage = AHARDWAREBUFFER_USAGE_CPU_READ_OFTEN |
+ AHARDWAREBUFFER_USAGE_CPU_WRITE_OFTEN;
+ }
+
+ struct AHardwareBuffer *ahw = NULL;
+ struct AHardwareBuffer_Desc desc = {
+ .width = w,
+ .height = h,
+ .layers = 1,
+ .format = format,
+ .usage = usage,
+ .stride = 0,
+ };
+
+ if (AHardwareBuffer_allocate(&desc, &ahw) != 0)
+ return VK_ERROR_OUT_OF_HOST_MEMORY;
+
+ mem->ahw = ahw;
+
+ return VK_SUCCESS;
+}
+
VkResult
anv_image_from_gralloc(VkDevice device_h,
const VkImageCreateInfo *base_info,
diff --git a/src/intel/vulkan/anv_device.c b/src/intel/vulkan/anv_device.c
index d8b67b54d63..0d0f09f605f 100644
--- a/src/intel/vulkan/anv_device.c
+++ b/src/intel/vulkan/anv_device.c
@@ -2161,14 +2161,57 @@ VkResult anv_AllocateMemory(
if (pdevice->use_softpin)
bo_flags |= EXEC_OBJECT_PINNED;
+ mem->ahw = NULL;
+
+ /* Check if we need to support Android HW buffer export. If so,
+ * create AHardwareBuffer and import memory from it.
+ */
+ bool android_export = false;
+ const VkExportMemoryAllocateInfo *export_info =
+ vk_find_struct_const(pAllocateInfo->pNext,
+ EXPORT_MEMORY_ALLOCATE_INFO);
+
+ if (export_info && export_info->handleTypes &
+ VK_EXTERNAL_MEMORY_HANDLE_TYPE_ANDROID_HARDWARE_BUFFER_BIT_ANDROID)
+ android_export = true;
+
+ const VkMemoryDedicatedAllocateInfo *dedicated_info =
+ vk_find_struct_const(pAllocateInfo->pNext,
+ MEMORY_DEDICATED_ALLOCATE_INFO);
+
+ /* Android memory import. */
+ const struct VkImportAndroidHardwareBufferInfoANDROID *ahw_info =
+ vk_find_struct_const(pAllocateInfo->pNext,
+ IMPORT_ANDROID_HARDWARE_BUFFER_INFO_ANDROID);
const VkImportMemoryFdInfoKHR *fd_info =
vk_find_struct_const(pAllocateInfo->pNext, IMPORT_MEMORY_FD_INFO_KHR);
+ /* Android export support required. */
+ if (android_export) {
+#ifdef ANDROID
+ result = anv_create_ahw_memory(_device, mem, pAllocateInfo);
+ if (result != VK_SUCCESS)
+ goto fail;
+
+ const struct VkImportAndroidHardwareBufferInfoANDROID import_info = {
+ .buffer = mem->ahw,
+ };
+ result = anv_import_ahw_memory(_device, mem, &import_info);
+ if (result != VK_SUCCESS)
+ goto fail;
+#endif
+ } else if (ahw_info) {
+#ifdef ANDROID
+
+ result = anv_import_ahw_memory(_device, mem, ahw_info);
+ if (result != VK_SUCCESS)
+ goto fail;
/* The Vulkan spec permits handleType to be 0, in which case the struct is
* ignored.
*/
- if (fd_info && fd_info->handleType) {
+#endif
+ } else if (fd_info && fd_info->handleType) {
/* At the moment, we support only the below handle types. */
assert(fd_info->handleType ==
VK_EXTERNAL_MEMORY_HANDLE_TYPE_OPAQUE_FD_BIT ||
@@ -2313,6 +2356,11 @@ void anv_FreeMemory(
anv_bo_cache_release(device, &device->bo_cache, mem->bo);
+#ifdef ANDROID
+ if (mem->ahw)
+ AHardwareBuffer_release(mem->ahw);
+#endif
+
vk_free2(&device->alloc, pAllocator, mem);
}
diff --git a/src/intel/vulkan/anv_private.h b/src/intel/vulkan/anv_private.h
index 452773bfec8..6ae2de04c4f 100644
--- a/src/intel/vulkan/anv_private.h
+++ b/src/intel/vulkan/anv_private.h
@@ -85,6 +85,11 @@ struct gen_l3_config;
#include "common/intel_log.h"
#include "wsi_common.h"
+#ifdef ANDROID
+#include <vndk/hardware_buffer.h>
+#include "vulkan/vulkan_android.h"
+#endif
+
/* anv Virtual Memory Layout
* =========================
*
@@ -1354,6 +1359,11 @@ struct anv_device_memory {
struct anv_memory_type * type;
VkDeviceSize map_size;
void * map;
+
+ /* If set, we are holding reference to AHardwareBuffer
+ * which we must release when memory is freed.
+ */
+ struct AHardwareBuffer * ahw;
};
/**
@@ -3045,6 +3055,14 @@ VkResult anv_image_from_gralloc(VkDevice device_h,
const VkNativeBufferANDROID *gralloc_info,
const VkAllocationCallbacks *alloc,
VkImage *pImage);
+
+VkResult anv_import_ahw_memory(VkDevice device_h,
+ struct anv_device_memory *mem,
+ const VkImportAndroidHardwareBufferInfoANDROID *info);
+
+VkResult anv_create_ahw_memory(VkDevice device_h,
+ struct anv_device_memory *mem,
+ const VkMemoryAllocateInfo *pAllocateInfo);
#endif
const struct anv_surface *
--
2.14.4
More information about the mesa-dev
mailing list