This extension adds a single function to query the current GPU timestamp, just like glGetInteger64v(GL_TIMESTAMP, ×tamp). This function is needed to complete the implementation of GOOGLE_display_timing, which needs to be able to correlate GPU and CPU timestamps.
Signed-off-by: Keith Packard keithp@keithp.com --- src/amd/vulkan/radv_device.c | 8 ++++++++ src/amd/vulkan/radv_extensions.py | 1 + src/amd/vulkan/radv_private.h | 1 + 3 files changed, 10 insertions(+)
diff --git a/src/amd/vulkan/radv_device.c b/src/amd/vulkan/radv_device.c index 62e1b9dba66..c552030491f 100644 --- a/src/amd/vulkan/radv_device.c +++ b/src/amd/vulkan/radv_device.c @@ -4770,3 +4770,11 @@ radv_GetDeviceGroupPeerMemoryFeatures( VK_PEER_MEMORY_FEATURE_GENERIC_SRC_BIT | VK_PEER_MEMORY_FEATURE_GENERIC_DST_BIT; } + +VkResult radv_QueryCurrentTimestampMESA(VkDevice _device, uint64_t *timestamp) +{ + RADV_FROM_HANDLE(radv_device, device, _device); + + *timestamp = device->ws->query_value(device->ws, RADEON_TIMESTAMP); + return VK_SUCCESS; +} diff --git a/src/amd/vulkan/radv_extensions.py b/src/amd/vulkan/radv_extensions.py index ebc3f6bc2b5..008e5cfe960 100644 --- a/src/amd/vulkan/radv_extensions.py +++ b/src/amd/vulkan/radv_extensions.py @@ -107,6 +107,7 @@ EXTENSIONS = [ Extension('VK_AMD_shader_core_properties', 1, True), Extension('VK_AMD_shader_info', 1, True), Extension('VK_AMD_shader_trinary_minmax', 1, True), + Extension('VK_MESA_query_timestamp', 1, True), ]
class VkVersion: diff --git a/src/amd/vulkan/radv_private.h b/src/amd/vulkan/radv_private.h index f001b836c8f..a3e0a6f013c 100644 --- a/src/amd/vulkan/radv_private.h +++ b/src/amd/vulkan/radv_private.h @@ -75,6 +75,7 @@ typedef uint32_t xcb_window_t; #include <vulkan/vulkan_intel.h> #include <vulkan/vk_icd.h> #include <vulkan/vk_android_native_buffer.h> +#include <vulkan/vk_mesa_query_timestamp.h>
#include "radv_entrypoints.h"