diff options
Diffstat (limited to 'lib/mesa/src/gallium/drivers/radeon/r600_gpu_load.c')
| -rw-r--r-- | lib/mesa/src/gallium/drivers/radeon/r600_gpu_load.c | 283 |
1 files changed, 0 insertions, 283 deletions
diff --git a/lib/mesa/src/gallium/drivers/radeon/r600_gpu_load.c b/lib/mesa/src/gallium/drivers/radeon/r600_gpu_load.c deleted file mode 100644 index 625370b8e..000000000 --- a/lib/mesa/src/gallium/drivers/radeon/r600_gpu_load.c +++ /dev/null @@ -1,283 +0,0 @@ -/* - * Copyright 2015 Advanced Micro Devices, Inc. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice (including the next - * paragraph) shall be included in all copies or substantial portions of the - * Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER - * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, - * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE - * SOFTWARE. - * - * Authors: Marek Olšák <maraeo@gmail.com> - * - */ - -/* The GPU load is measured as follows. - * - * There is a thread which samples the GRBM_STATUS register at a certain - * frequency and the "busy" or "idle" counter is incremented based on - * whether the GUI_ACTIVE bit is set or not. - * - * Then, the user can sample the counters twice and calculate the average - * GPU load between the two samples. - */ - -#include "r600_pipe_common.h" -#include "r600_query.h" -#include "os/os_time.h" - -/* For good accuracy at 1000 fps or lower. This will be inaccurate for higher - * fps (there are too few samples per frame). */ -#define SAMPLES_PER_SEC 10000 - -#define GRBM_STATUS 0x8010 -#define TA_BUSY(x) (((x) >> 14) & 0x1) -#define GDS_BUSY(x) (((x) >> 15) & 0x1) -#define VGT_BUSY(x) (((x) >> 17) & 0x1) -#define IA_BUSY(x) (((x) >> 19) & 0x1) -#define SX_BUSY(x) (((x) >> 20) & 0x1) -#define WD_BUSY(x) (((x) >> 21) & 0x1) -#define SPI_BUSY(x) (((x) >> 22) & 0x1) -#define BCI_BUSY(x) (((x) >> 23) & 0x1) -#define SC_BUSY(x) (((x) >> 24) & 0x1) -#define PA_BUSY(x) (((x) >> 25) & 0x1) -#define DB_BUSY(x) (((x) >> 26) & 0x1) -#define CP_BUSY(x) (((x) >> 29) & 0x1) -#define CB_BUSY(x) (((x) >> 30) & 0x1) -#define GUI_ACTIVE(x) (((x) >> 31) & 0x1) - -#define SRBM_STATUS2 0x0e4c -#define SDMA_BUSY(x) (((x) >> 5) & 0x1) - -#define CP_STAT 0x8680 -#define PFP_BUSY(x) (((x) >> 15) & 0x1) -#define MEQ_BUSY(x) (((x) >> 16) & 0x1) -#define ME_BUSY(x) (((x) >> 17) & 0x1) -#define SURFACE_SYNC_BUSY(x) (((x) >> 21) & 0x1) -#define DMA_BUSY(x) (((x) >> 22) & 0x1) -#define SCRATCH_RAM_BUSY(x) (((x) >> 24) & 0x1) - -#define IDENTITY(x) x - -#define UPDATE_COUNTER(field, mask) \ - do { \ - if (mask(value)) \ - p_atomic_inc(&counters->named.field.busy); \ - else \ - p_atomic_inc(&counters->named.field.idle); \ - } while (0) - -static void r600_update_mmio_counters(struct r600_common_screen *rscreen, - union r600_mmio_counters *counters) -{ - uint32_t value = 0; - bool gui_busy, sdma_busy = false; - - /* GRBM_STATUS */ - rscreen->ws->read_registers(rscreen->ws, GRBM_STATUS, 1, &value); - - UPDATE_COUNTER(ta, TA_BUSY); - UPDATE_COUNTER(gds, GDS_BUSY); - UPDATE_COUNTER(vgt, VGT_BUSY); - UPDATE_COUNTER(ia, IA_BUSY); - UPDATE_COUNTER(sx, SX_BUSY); - UPDATE_COUNTER(wd, WD_BUSY); - UPDATE_COUNTER(spi, SPI_BUSY); - UPDATE_COUNTER(bci, BCI_BUSY); - UPDATE_COUNTER(sc, SC_BUSY); - UPDATE_COUNTER(pa, PA_BUSY); - UPDATE_COUNTER(db, DB_BUSY); - UPDATE_COUNTER(cp, CP_BUSY); - UPDATE_COUNTER(cb, CB_BUSY); - UPDATE_COUNTER(gui, GUI_ACTIVE); - gui_busy = GUI_ACTIVE(value); - - if (rscreen->chip_class == CIK || rscreen->chip_class == VI) { - /* SRBM_STATUS2 */ - rscreen->ws->read_registers(rscreen->ws, SRBM_STATUS2, 1, &value); - - UPDATE_COUNTER(sdma, SDMA_BUSY); - sdma_busy = SDMA_BUSY(value); - } - - if (rscreen->chip_class >= VI) { - /* CP_STAT */ - rscreen->ws->read_registers(rscreen->ws, CP_STAT, 1, &value); - - UPDATE_COUNTER(pfp, PFP_BUSY); - UPDATE_COUNTER(meq, MEQ_BUSY); - UPDATE_COUNTER(me, ME_BUSY); - UPDATE_COUNTER(surf_sync, SURFACE_SYNC_BUSY); - UPDATE_COUNTER(cp_dma, DMA_BUSY); - UPDATE_COUNTER(scratch_ram, SCRATCH_RAM_BUSY); - } - - value = gui_busy || sdma_busy; - UPDATE_COUNTER(gpu, IDENTITY); -} - -#undef UPDATE_COUNTER - -static int -r600_gpu_load_thread(void *param) -{ - struct r600_common_screen *rscreen = (struct r600_common_screen*)param; - const int period_us = 1000000 / SAMPLES_PER_SEC; - int sleep_us = period_us; - int64_t cur_time, last_time = os_time_get(); - - while (!p_atomic_read(&rscreen->gpu_load_stop_thread)) { - if (sleep_us) - os_time_sleep(sleep_us); - - /* Make sure we sleep the ideal amount of time to match - * the expected frequency. */ - cur_time = os_time_get(); - - if (os_time_timeout(last_time, last_time + period_us, - cur_time)) - sleep_us = MAX2(sleep_us - 1, 1); - else - sleep_us += 1; - - /*printf("Hz: %.1f\n", 1000000.0 / (cur_time - last_time));*/ - last_time = cur_time; - - /* Update the counters. */ - r600_update_mmio_counters(rscreen, &rscreen->mmio_counters); - } - p_atomic_dec(&rscreen->gpu_load_stop_thread); - return 0; -} - -void si_gpu_load_kill_thread(struct r600_common_screen *rscreen) -{ - if (!rscreen->gpu_load_thread) - return; - - p_atomic_inc(&rscreen->gpu_load_stop_thread); - thrd_join(rscreen->gpu_load_thread, NULL); - rscreen->gpu_load_thread = 0; -} - -static uint64_t r600_read_mmio_counter(struct r600_common_screen *rscreen, - unsigned busy_index) -{ - /* Start the thread if needed. */ - if (!rscreen->gpu_load_thread) { - mtx_lock(&rscreen->gpu_load_mutex); - /* Check again inside the mutex. */ - if (!rscreen->gpu_load_thread) - rscreen->gpu_load_thread = - u_thread_create(r600_gpu_load_thread, rscreen); - mtx_unlock(&rscreen->gpu_load_mutex); - } - - unsigned busy = p_atomic_read(&rscreen->mmio_counters.array[busy_index]); - unsigned idle = p_atomic_read(&rscreen->mmio_counters.array[busy_index + 1]); - - return busy | ((uint64_t)idle << 32); -} - -static unsigned r600_end_mmio_counter(struct r600_common_screen *rscreen, - uint64_t begin, unsigned busy_index) -{ - uint64_t end = r600_read_mmio_counter(rscreen, busy_index); - unsigned busy = (end & 0xffffffff) - (begin & 0xffffffff); - unsigned idle = (end >> 32) - (begin >> 32); - - /* Calculate the % of time the busy counter was being incremented. - * - * If no counters were incremented, return the current counter status. - * It's for the case when the load is queried faster than - * the counters are updated. - */ - if (idle || busy) { - return busy*100 / (busy + idle); - } else { - union r600_mmio_counters counters; - - memset(&counters, 0, sizeof(counters)); - r600_update_mmio_counters(rscreen, &counters); - return counters.array[busy_index] ? 100 : 0; - } -} - -#define BUSY_INDEX(rscreen, field) (&rscreen->mmio_counters.named.field.busy - \ - rscreen->mmio_counters.array) - -static unsigned busy_index_from_type(struct r600_common_screen *rscreen, - unsigned type) -{ - switch (type) { - case R600_QUERY_GPU_LOAD: - return BUSY_INDEX(rscreen, gpu); - case R600_QUERY_GPU_SHADERS_BUSY: - return BUSY_INDEX(rscreen, spi); - case R600_QUERY_GPU_TA_BUSY: - return BUSY_INDEX(rscreen, ta); - case R600_QUERY_GPU_GDS_BUSY: - return BUSY_INDEX(rscreen, gds); - case R600_QUERY_GPU_VGT_BUSY: - return BUSY_INDEX(rscreen, vgt); - case R600_QUERY_GPU_IA_BUSY: - return BUSY_INDEX(rscreen, ia); - case R600_QUERY_GPU_SX_BUSY: - return BUSY_INDEX(rscreen, sx); - case R600_QUERY_GPU_WD_BUSY: - return BUSY_INDEX(rscreen, wd); - case R600_QUERY_GPU_BCI_BUSY: - return BUSY_INDEX(rscreen, bci); - case R600_QUERY_GPU_SC_BUSY: - return BUSY_INDEX(rscreen, sc); - case R600_QUERY_GPU_PA_BUSY: - return BUSY_INDEX(rscreen, pa); - case R600_QUERY_GPU_DB_BUSY: - return BUSY_INDEX(rscreen, db); - case R600_QUERY_GPU_CP_BUSY: - return BUSY_INDEX(rscreen, cp); - case R600_QUERY_GPU_CB_BUSY: - return BUSY_INDEX(rscreen, cb); - case R600_QUERY_GPU_SDMA_BUSY: - return BUSY_INDEX(rscreen, sdma); - case R600_QUERY_GPU_PFP_BUSY: - return BUSY_INDEX(rscreen, pfp); - case R600_QUERY_GPU_MEQ_BUSY: - return BUSY_INDEX(rscreen, meq); - case R600_QUERY_GPU_ME_BUSY: - return BUSY_INDEX(rscreen, me); - case R600_QUERY_GPU_SURF_SYNC_BUSY: - return BUSY_INDEX(rscreen, surf_sync); - case R600_QUERY_GPU_CP_DMA_BUSY: - return BUSY_INDEX(rscreen, cp_dma); - case R600_QUERY_GPU_SCRATCH_RAM_BUSY: - return BUSY_INDEX(rscreen, scratch_ram); - default: - unreachable("invalid query type"); - } -} - -uint64_t si_begin_counter(struct r600_common_screen *rscreen, unsigned type) -{ - unsigned busy_index = busy_index_from_type(rscreen, type); - return r600_read_mmio_counter(rscreen, busy_index); -} - -unsigned si_end_counter(struct r600_common_screen *rscreen, unsigned type, - uint64_t begin) -{ - unsigned busy_index = busy_index_from_type(rscreen, type); - return r600_end_mmio_counter(rscreen, begin, busy_index); -} |