[Mesa-dev] [PATCH] anv/device: fix timestampPeriod for Broxton

[Robert Bragg]

Broxton's reference clock for timestamps runs at 19.2MHz and gives us
a period of 52.083 nanoseconds.

Signed-off-by: Robert Bragg <robert at sixbynine.org>
---
 src/intel/vulkan/anv_device.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/intel/vulkan/anv_device.c b/src/intel/vulkan/anv_device.c
index 014b2f7d9c..d9eba859a1 100644
--- a/src/intel/vulkan/anv_device.c
+++ b/src/intel/vulkan/anv_device.c
@@ -535,7 +535,8 @@ void anv_GetPhysicalDeviceProperties(
    ANV_FROM_HANDLE(anv_physical_device, pdevice, physicalDevice);
    const struct gen_device_info *devinfo = &pdevice->info;
 
-   const float time_stamp_base = devinfo->gen >= 9 ? 83.333 : 80.0;
+   const float time_stamp_base = (devinfo->gen < 9 ? 80.0 :
+                                  (devinfo->is_broxton ? 52.083 : 83.333));
 
    /* See assertions made when programming the buffer surface state. */
    const uint32_t max_raw_buffer_sz = devinfo->gen >= 7 ?
-- 
2.12.0