root/sys/dev/pci/drm/amd/amdgpu/amdgpu_nbio.h
/*
 * Copyright 2019 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.
 *
 */
#ifndef __AMDGPU_NBIO_H__
#define __AMDGPU_NBIO_H__

/*
 * amdgpu nbio functions
 */
struct nbio_hdp_flush_reg {
        u32 ref_and_mask_cp0;
        u32 ref_and_mask_cp1;
        u32 ref_and_mask_cp2;
        u32 ref_and_mask_cp3;
        u32 ref_and_mask_cp4;
        u32 ref_and_mask_cp5;
        u32 ref_and_mask_cp6;
        u32 ref_and_mask_cp7;
        u32 ref_and_mask_cp8;
        u32 ref_and_mask_cp9;
        u32 ref_and_mask_sdma0;
        u32 ref_and_mask_sdma1;
        u32 ref_and_mask_sdma2;
        u32 ref_and_mask_sdma3;
        u32 ref_and_mask_sdma4;
        u32 ref_and_mask_sdma5;
        u32 ref_and_mask_sdma6;
        u32 ref_and_mask_sdma7;
};

struct amdgpu_nbio_ras {
        struct amdgpu_ras_block_object ras_block;
        void (*handle_ras_controller_intr_no_bifring)(struct amdgpu_device *adev);
        void (*handle_ras_err_event_athub_intr_no_bifring)(struct amdgpu_device *adev);
        int (*init_ras_controller_interrupt)(struct amdgpu_device *adev);
        int (*init_ras_err_event_athub_interrupt)(struct amdgpu_device *adev);
};

struct amdgpu_nbio_funcs {
        const struct nbio_hdp_flush_reg *hdp_flush_reg;
        u32 (*get_hdp_flush_req_offset)(struct amdgpu_device *adev);
        u32 (*get_hdp_flush_done_offset)(struct amdgpu_device *adev);
        u32 (*get_pcie_index_offset)(struct amdgpu_device *adev);
        u32 (*get_pcie_data_offset)(struct amdgpu_device *adev);
        u32 (*get_pcie_index_hi_offset)(struct amdgpu_device *adev);
        u32 (*get_pcie_port_index_offset)(struct amdgpu_device *adev);
        u32 (*get_pcie_port_data_offset)(struct amdgpu_device *adev);
        u32 (*get_rev_id)(struct amdgpu_device *adev);
        void (*mc_access_enable)(struct amdgpu_device *adev, bool enable);
        u32 (*get_memsize)(struct amdgpu_device *adev);
        void (*sdma_doorbell_range)(struct amdgpu_device *adev, int instance,
                        bool use_doorbell, int doorbell_index, int doorbell_size);
        void (*vpe_doorbell_range)(struct amdgpu_device *adev, int instance,
                        bool use_doorbell, int doorbell_index, int doorbell_size);
        void (*vcn_doorbell_range)(struct amdgpu_device *adev, bool use_doorbell,
                                   int doorbell_index, int instance);
        void (*gc_doorbell_init)(struct amdgpu_device *adev);
        void (*enable_doorbell_aperture)(struct amdgpu_device *adev,
                                         bool enable);
        void (*enable_doorbell_selfring_aperture)(struct amdgpu_device *adev,
                                                  bool enable);
        void (*ih_doorbell_range)(struct amdgpu_device *adev,
                                  bool use_doorbell, int doorbell_index);
        void (*enable_doorbell_interrupt)(struct amdgpu_device *adev,
                                          bool enable);
        void (*update_medium_grain_clock_gating)(struct amdgpu_device *adev,
                                                 bool enable);
        void (*update_medium_grain_light_sleep)(struct amdgpu_device *adev,
                                                bool enable);
        void (*get_clockgating_state)(struct amdgpu_device *adev,
                                      u64 *flags);
        void (*ih_control)(struct amdgpu_device *adev);
        void (*init_registers)(struct amdgpu_device *adev);
        void (*remap_hdp_registers)(struct amdgpu_device *adev);
        void (*enable_aspm)(struct amdgpu_device *adev,
                            bool enable);
        void (*program_aspm)(struct amdgpu_device *adev);
        void (*apply_lc_spc_mode_wa)(struct amdgpu_device *adev);
        void (*apply_l1_link_width_reconfig_wa)(struct amdgpu_device *adev);
        void (*clear_doorbell_interrupt)(struct amdgpu_device *adev);
        u32 (*get_rom_offset)(struct amdgpu_device *adev);
        int (*get_compute_partition_mode)(struct amdgpu_device *adev);
        u32 (*get_memory_partition_mode)(struct amdgpu_device *adev,
                                         u32 *supp_modes);
        bool (*is_nps_switch_requested)(struct amdgpu_device *adev);
        u64 (*get_pcie_replay_count)(struct amdgpu_device *adev);
        void (*set_reg_remap)(struct amdgpu_device *adev);
};

struct amdgpu_nbio {
        const struct nbio_hdp_flush_reg *hdp_flush_reg;
        struct amdgpu_irq_src ras_controller_irq;
        struct amdgpu_irq_src ras_err_event_athub_irq;
        struct ras_common_if *ras_if;
        const struct amdgpu_nbio_funcs *funcs;
        struct amdgpu_nbio_ras  *ras;
};

int amdgpu_nbio_ras_sw_init(struct amdgpu_device *adev);
int amdgpu_nbio_ras_late_init(struct amdgpu_device *adev, struct ras_common_if *ras_block);
u64 amdgpu_nbio_get_pcie_replay_count(struct amdgpu_device *adev);

bool amdgpu_nbio_is_replay_cnt_supported(struct amdgpu_device *adev);

#endif