/* * Copyright 2023 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 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 COPYRIGHT HOLDER(S) OR AUTHOR(S) 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. * */ #include <linux/pci.h> #include "amdgpu.h" #include "amdgpu_ih.h" #include "oss/osssys_7_0_0_offset.h" #include "oss/osssys_7_0_0_sh_mask.h" #include "soc15_common.h" #include "ih_v7_0.h" #define MAX_REARM_RETRY … static void ih_v7_0_set_interrupt_funcs(struct amdgpu_device *adev); /** * ih_v7_0_init_register_offset - Initialize register offset for ih rings * * @adev: amdgpu_device pointer * * Initialize register offset ih rings (IH_V7_0). */ static void ih_v7_0_init_register_offset(struct amdgpu_device *adev) { … } /** * force_update_wptr_for_self_int - Force update the wptr for self interrupt * * @adev: amdgpu_device pointer * @threshold: threshold to trigger the wptr reporting * @timeout: timeout to trigger the wptr reporting * @enabled: Enable/disable timeout flush mechanism * * threshold input range: 0 ~ 15, default 0, * real_threshold = 2^threshold * timeout input range: 0 ~ 20, default 8, * real_timeout = (2^timeout) * 1024 / (socclk_freq) * * Force update wptr for self interrupt ( >= SIENNA_CICHLID). */ static void force_update_wptr_for_self_int(struct amdgpu_device *adev, u32 threshold, u32 timeout, bool enabled) { … } /** * ih_v7_0_toggle_ring_interrupts - toggle the interrupt ring buffer * * @adev: amdgpu_device pointer * @ih: amdgpu_ih_ring pointet * @enable: true - enable the interrupts, false - disable the interrupts * * Toggle the interrupt ring buffer (IH_V7_0) */ static int ih_v7_0_toggle_ring_interrupts(struct amdgpu_device *adev, struct amdgpu_ih_ring *ih, bool enable) { … } /** * ih_v7_0_toggle_interrupts - Toggle all the available interrupt ring buffers * * @adev: amdgpu_device pointer * @enable: enable or disable interrupt ring buffers * * Toggle all the available interrupt ring buffers (IH_V7_0). */ static int ih_v7_0_toggle_interrupts(struct amdgpu_device *adev, bool enable) { … } static uint32_t ih_v7_0_rb_cntl(struct amdgpu_ih_ring *ih, uint32_t ih_rb_cntl) { … } static uint32_t ih_v7_0_doorbell_rptr(struct amdgpu_ih_ring *ih) { … } /** * ih_v7_0_enable_ring - enable an ih ring buffer * * @adev: amdgpu_device pointer * @ih: amdgpu_ih_ring pointer * * Enable an ih ring buffer (IH_V7_0) */ static int ih_v7_0_enable_ring(struct amdgpu_device *adev, struct amdgpu_ih_ring *ih) { … } /** * ih_v7_0_irq_init - init and enable the interrupt ring * * @adev: amdgpu_device pointer * * Allocate a ring buffer for the interrupt controller, * enable the RLC, disable interrupts, enable the IH * ring buffer and enable it. * Called at device load and reume. * Returns 0 for success, errors for failure. */ static int ih_v7_0_irq_init(struct amdgpu_device *adev) { … } /** * ih_v7_0_irq_disable - disable interrupts * * @adev: amdgpu_device pointer * * Disable interrupts on the hw. */ static void ih_v7_0_irq_disable(struct amdgpu_device *adev) { … } /** * ih_v7_0_get_wptr() - get the IH ring buffer wptr * * @adev: amdgpu_device pointer * @ih: IH ring buffer to fetch wptr * * Get the IH ring buffer wptr from either the register * or the writeback memory buffer. Also check for * ring buffer overflow and deal with it. * Returns the value of the wptr. */ static u32 ih_v7_0_get_wptr(struct amdgpu_device *adev, struct amdgpu_ih_ring *ih) { … } /** * ih_v7_0_irq_rearm - rearm IRQ if lost * * @adev: amdgpu_device pointer * @ih: IH ring to match * */ static void ih_v7_0_irq_rearm(struct amdgpu_device *adev, struct amdgpu_ih_ring *ih) { … } /** * ih_v7_0_set_rptr - set the IH ring buffer rptr * * @adev: amdgpu_device pointer * @ih: IH ring buffer to set rptr */ static void ih_v7_0_set_rptr(struct amdgpu_device *adev, struct amdgpu_ih_ring *ih) { … } /** * ih_v7_0_self_irq - dispatch work for ring 1 * * @adev: amdgpu_device pointer * @source: irq source * @entry: IV with WPTR update * * Update the WPTR from the IV and schedule work to handle the entries. */ static int ih_v7_0_self_irq(struct amdgpu_device *adev, struct amdgpu_irq_src *source, struct amdgpu_iv_entry *entry) { … } static const struct amdgpu_irq_src_funcs ih_v7_0_self_irq_funcs = …; static void ih_v7_0_set_self_irq_funcs(struct amdgpu_device *adev) { … } static int ih_v7_0_early_init(void *handle) { … } static int ih_v7_0_sw_init(void *handle) { … } static int ih_v7_0_sw_fini(void *handle) { … } static int ih_v7_0_hw_init(void *handle) { … } static int ih_v7_0_hw_fini(void *handle) { … } static int ih_v7_0_suspend(void *handle) { … } static int ih_v7_0_resume(void *handle) { … } static bool ih_v7_0_is_idle(void *handle) { … } static int ih_v7_0_wait_for_idle(void *handle) { … } static int ih_v7_0_soft_reset(void *handle) { … } static void ih_v7_0_update_clockgating_state(struct amdgpu_device *adev, bool enable) { … } static int ih_v7_0_set_clockgating_state(void *handle, enum amd_clockgating_state state) { … } static void ih_v7_0_update_ih_mem_power_gating(struct amdgpu_device *adev, bool enable) { … } static int ih_v7_0_set_powergating_state(void *handle, enum amd_powergating_state state) { … } static void ih_v7_0_get_clockgating_state(void *handle, u64 *flags) { … } static const struct amd_ip_funcs ih_v7_0_ip_funcs = …; static const struct amdgpu_ih_funcs ih_v7_0_funcs = …; static void ih_v7_0_set_interrupt_funcs(struct amdgpu_device *adev) { … } const struct amdgpu_ip_block_version ih_v7_0_ip_block = …;
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