1 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ 2 /* 3 * 4 * (C) COPYRIGHT 2018-2021 ARM Limited. All rights reserved. 5 * 6 * This program is free software and is provided to you under the terms of the 7 * GNU General Public License version 2 as published by the Free Software 8 * Foundation, and any use by you of this program is subject to the terms 9 * of such GNU license. 10 * 11 * This program is distributed in the hope that it will be useful, 12 * but WITHOUT ANY WARRANTY; without even the implied warranty of 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14 * GNU General Public License for more details. 15 * 16 * You should have received a copy of the GNU General Public License 17 * along with this program; if not, you can access it online at 18 * http://www.gnu.org/licenses/gpl-2.0.html. 19 * 20 */ 21 22 /* 23 * Backend-specific Power Manager shader core state definitions. 24 * The function-like macro KBASEP_SHADER_STATE() must be defined before 25 * including this header file. This header file can be included multiple 26 * times in the same compilation unit with different definitions of 27 * KBASEP_SHADER_STATE(). 28 * 29 * @OFF_CORESTACK_OFF: The shaders and core stacks are off 30 * @OFF_CORESTACK_PEND_ON: The shaders are off, core stacks have been 31 * requested to power on and hwcnt is being 32 * disabled 33 * @PEND_ON_CORESTACK_ON: Core stacks are on, shaders have been 34 * requested to power on. Or after doing 35 * partial shader on/off, checking whether 36 * it's the desired state. 37 * @ON_CORESTACK_ON: The shaders and core stacks are on, and 38 * hwcnt already enabled. 39 * @ON_CORESTACK_ON_RECHECK: The shaders and core stacks are on, hwcnt 40 * disabled, and checks to powering down or 41 * re-enabling hwcnt. 42 * @WAIT_OFF_CORESTACK_ON: The shaders have been requested to power 43 * off, but they remain on for the duration 44 * of the hysteresis timer 45 * @WAIT_GPU_IDLE: The shaders partial poweroff needs to 46 * reach a state where jobs on the GPU are 47 * finished including jobs currently running 48 * and in the GPU queue because of 49 * GPU2017-861 50 * @WAIT_FINISHED_CORESTACK_ON: The hysteresis timer has expired 51 * @L2_FLUSHING_CORESTACK_ON: The core stacks are on and the level 2 52 * cache is being flushed. 53 * @READY_OFF_CORESTACK_ON: The core stacks are on and the shaders are 54 * ready to be powered off. 55 * @PEND_OFF_CORESTACK_ON: The core stacks are on, and the shaders 56 * have been requested to power off 57 * @OFF_CORESTACK_PEND_OFF: The shaders are off, and the core stacks 58 * have been requested to power off 59 * @OFF_CORESTACK_OFF_TIMER_PEND_OFF: Shaders and corestacks are off, but the 60 * tick timer cancellation is still pending. 61 * @RESET_WAIT: The GPU is resetting, shader and core 62 * stack power states are unknown 63 */ 64 KBASEP_SHADER_STATE(OFF_CORESTACK_OFF) 65 KBASEP_SHADER_STATE(OFF_CORESTACK_PEND_ON) 66 KBASEP_SHADER_STATE(PEND_ON_CORESTACK_ON) 67 KBASEP_SHADER_STATE(ON_CORESTACK_ON) 68 KBASEP_SHADER_STATE(ON_CORESTACK_ON_RECHECK) 69 KBASEP_SHADER_STATE(WAIT_OFF_CORESTACK_ON) 70 #if !MALI_USE_CSF 71 KBASEP_SHADER_STATE(WAIT_GPU_IDLE) 72 #endif /* !MALI_USE_CSF */ 73 KBASEP_SHADER_STATE(WAIT_FINISHED_CORESTACK_ON) 74 KBASEP_SHADER_STATE(L2_FLUSHING_CORESTACK_ON) 75 KBASEP_SHADER_STATE(READY_OFF_CORESTACK_ON) 76 KBASEP_SHADER_STATE(PEND_OFF_CORESTACK_ON) 77 KBASEP_SHADER_STATE(OFF_CORESTACK_PEND_OFF) 78 KBASEP_SHADER_STATE(OFF_CORESTACK_OFF_TIMER_PEND_OFF) 79 KBASEP_SHADER_STATE(RESET_WAIT) 80