I thought I remembered patches with those numbers in gen_device_info
somewhere...
Anyway :
Reviewed-by: Lionel Landwerlin <lionel.g.landwer...@intel.com>
On 17/03/17 14:41, Robert Bragg wrote:
Broxton's reference clock for timestamps runs at 19.2MHz and gives us
a period of 52.083 nanoseconds.
Signed-off-by: Robert Bragg <rob...@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 ?
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