Am Montag, 19. August 2024, 10:02:22 CEST schrieb Mary Guillemard: > Expose system timestamp and frequency supported by the GPU. > > Mali uses an external timer as GPU system time. On ARM, this is wired to > the generic arch timer so we wire cntfrq_el0 as device frequency. > > This new uAPI will be used in Mesa to implement timestamp queries and > VK_KHR_calibrated_timestamps. > > v2: > - Rewrote to use GPU timestamp register > - Add missing include for arch_timer_get_cntfrq > - Rework commit message > > v3: > - Move panfrost_cycle_counter_get and panfrost_cycle_counter_put to > panfrost_ioctl_query_timestamp > - Handle possible overflow in panfrost_timestamp_read > > Signed-off-by: Mary Guillemard <mary.guillemard@xxxxxxxxxxxxx> On a rk3588-tiger with matching MESA build and "RUSTICL_ENABLE=panfrost clpeak" Tested-by: Heiko Stuebner <heiko@xxxxxxxxx> Without this change, clpeak fails with clCreateCommandQueue (-35)
