1 /* 2 * Copyright © 2020-2021 Collabora, Ltd. 3 * Author: Antonio Caggiano <antonio.caggiano@collabora.com> 4 * Author: Rohan Garg <rohan.garg@collabora.com> 5 * Author: Robert Beckett <bob.beckett@collabora.com> 6 * 7 * SPDX-License-Identifier: MIT 8 */ 9 10 #pragma once 11 12 #include <pps/pps_driver.h> 13 14 #include "pan_pps_perf.h" 15 16 namespace pps 17 { 18 /// @brief Panfrost implementation of PPS driver. 19 /// This driver queries the GPU through `drm/panfrost_drm.h`, using performance counters ioctls, 20 /// which can be enabled by setting a kernel parameter: `modprobe panfrost unstable_ioctls=1`. 21 /// The ioctl needs a buffer to copy data from kernel to user space. 22 class PanfrostDriver : public Driver 23 { 24 public: 25 static inline PanfrostDriver &into(Driver &dri); 26 static inline const PanfrostDriver &into(const Driver &dri); 27 28 /// @param A list of mali counter names 29 /// @return A pair with two lists: counter groups and available counters 30 static std::pair<std::vector<CounterGroup>, std::vector<Counter>> create_available_counters( 31 const PanfrostPerf& perf); 32 33 PanfrostDriver(); 34 ~PanfrostDriver(); 35 36 uint64_t get_min_sampling_period_ns() override; 37 bool init_perfcnt() override; 38 void enable_counter(uint32_t counter_id) override; 39 void enable_all_counters() override; 40 void enable_perfcnt(uint64_t sampling_period_ns) override; 41 void disable_perfcnt() override; 42 bool dump_perfcnt() override; 43 uint64_t next() override; 44 45 uint64_t last_dump_ts = 0; 46 47 std::unique_ptr<PanfrostDevice> dev = nullptr; 48 std::unique_ptr<PanfrostPerf> perf = nullptr; 49 }; 50 into(Driver & dri)51PanfrostDriver &PanfrostDriver::into(Driver &dri) 52 { 53 return reinterpret_cast<PanfrostDriver &>(dri); 54 } 55 into(const Driver & dri)56const PanfrostDriver &PanfrostDriver::into(const Driver &dri) 57 { 58 return reinterpret_cast<const PanfrostDriver &>(dri); 59 } 60 61 } // namespace pps 62