![Ben Goz](/assets/img/avatar_default.png)
This patch adds the gfx8 interface file between amdgpu and amdkfd. This interface file is currently in use when running on a Carrizo-based system. The interface itself is represented by a pointer to struct kfd_dev. The pointer is located inside amdgpu_device structure. All the register accesses that amdkfd need are done using this interface. This allows us to avoid direct register accesses in amdkfd proper, while also allows us to avoid locking between amdkfd and amdgpu. The single exception is the doorbells that are used in both of the drivers. However, because they are located in separate pci bar pages, the danger of sharing registers between the drivers is minimal. Having said that, we are planning to move the doorbells as well to amdgpu. Signed-off-by: Ben Goz <ben.goz@amd.com> Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
544 lines
15 KiB
C
544 lines
15 KiB
C
/*
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* Copyright 2014 Advanced Micro Devices, Inc.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
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* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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* OTHER DEALINGS IN THE SOFTWARE.
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*/
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#include <linux/module.h>
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#include <linux/fdtable.h>
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#include <linux/uaccess.h>
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#include <linux/firmware.h>
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#include <drm/drmP.h>
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#include "amdgpu.h"
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#include "amdgpu_amdkfd.h"
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#include "amdgpu_ucode.h"
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#include "gca/gfx_8_0_sh_mask.h"
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#include "gca/gfx_8_0_d.h"
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#include "gca/gfx_8_0_enum.h"
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#include "oss/oss_3_0_sh_mask.h"
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#include "oss/oss_3_0_d.h"
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#include "gmc/gmc_8_1_sh_mask.h"
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#include "gmc/gmc_8_1_d.h"
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#include "vi_structs.h"
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#include "vid.h"
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#define VI_PIPE_PER_MEC (4)
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struct cik_sdma_rlc_registers;
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/*
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* Register access functions
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*/
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static void kgd_program_sh_mem_settings(struct kgd_dev *kgd, uint32_t vmid,
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uint32_t sh_mem_config,
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uint32_t sh_mem_ape1_base, uint32_t sh_mem_ape1_limit,
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uint32_t sh_mem_bases);
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static int kgd_set_pasid_vmid_mapping(struct kgd_dev *kgd, unsigned int pasid,
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unsigned int vmid);
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static int kgd_init_pipeline(struct kgd_dev *kgd, uint32_t pipe_id,
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uint32_t hpd_size, uint64_t hpd_gpu_addr);
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static int kgd_init_interrupts(struct kgd_dev *kgd, uint32_t pipe_id);
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static int kgd_hqd_load(struct kgd_dev *kgd, void *mqd, uint32_t pipe_id,
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uint32_t queue_id, uint32_t __user *wptr);
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static int kgd_hqd_sdma_load(struct kgd_dev *kgd, void *mqd);
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static bool kgd_hqd_is_occupied(struct kgd_dev *kgd, uint64_t queue_address,
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uint32_t pipe_id, uint32_t queue_id);
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static bool kgd_hqd_sdma_is_occupied(struct kgd_dev *kgd, void *mqd);
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static int kgd_hqd_destroy(struct kgd_dev *kgd, uint32_t reset_type,
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unsigned int timeout, uint32_t pipe_id,
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uint32_t queue_id);
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static int kgd_hqd_sdma_destroy(struct kgd_dev *kgd, void *mqd,
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unsigned int timeout);
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static void write_vmid_invalidate_request(struct kgd_dev *kgd, uint8_t vmid);
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static int kgd_address_watch_disable(struct kgd_dev *kgd);
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static int kgd_address_watch_execute(struct kgd_dev *kgd,
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unsigned int watch_point_id,
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uint32_t cntl_val,
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uint32_t addr_hi,
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uint32_t addr_lo);
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static int kgd_wave_control_execute(struct kgd_dev *kgd,
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uint32_t gfx_index_val,
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uint32_t sq_cmd);
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static uint32_t kgd_address_watch_get_offset(struct kgd_dev *kgd,
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unsigned int watch_point_id,
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unsigned int reg_offset);
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static bool get_atc_vmid_pasid_mapping_valid(struct kgd_dev *kgd,
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uint8_t vmid);
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static uint16_t get_atc_vmid_pasid_mapping_pasid(struct kgd_dev *kgd,
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uint8_t vmid);
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static void write_vmid_invalidate_request(struct kgd_dev *kgd, uint8_t vmid);
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static uint16_t get_fw_version(struct kgd_dev *kgd, enum kgd_engine_type type);
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static const struct kfd2kgd_calls kfd2kgd = {
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.init_gtt_mem_allocation = alloc_gtt_mem,
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.free_gtt_mem = free_gtt_mem,
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.get_vmem_size = get_vmem_size,
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.get_gpu_clock_counter = get_gpu_clock_counter,
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.get_max_engine_clock_in_mhz = get_max_engine_clock_in_mhz,
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.program_sh_mem_settings = kgd_program_sh_mem_settings,
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.set_pasid_vmid_mapping = kgd_set_pasid_vmid_mapping,
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.init_pipeline = kgd_init_pipeline,
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.init_interrupts = kgd_init_interrupts,
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.hqd_load = kgd_hqd_load,
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.hqd_sdma_load = kgd_hqd_sdma_load,
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.hqd_is_occupied = kgd_hqd_is_occupied,
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.hqd_sdma_is_occupied = kgd_hqd_sdma_is_occupied,
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.hqd_destroy = kgd_hqd_destroy,
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.hqd_sdma_destroy = kgd_hqd_sdma_destroy,
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.address_watch_disable = kgd_address_watch_disable,
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.address_watch_execute = kgd_address_watch_execute,
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.wave_control_execute = kgd_wave_control_execute,
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.address_watch_get_offset = kgd_address_watch_get_offset,
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.get_atc_vmid_pasid_mapping_pasid =
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get_atc_vmid_pasid_mapping_pasid,
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.get_atc_vmid_pasid_mapping_valid =
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get_atc_vmid_pasid_mapping_valid,
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.write_vmid_invalidate_request = write_vmid_invalidate_request,
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.get_fw_version = get_fw_version
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};
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struct kfd2kgd_calls *amdgpu_amdkfd_gfx_8_0_get_functions()
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{
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return (struct kfd2kgd_calls *)&kfd2kgd;
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}
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static inline struct amdgpu_device *get_amdgpu_device(struct kgd_dev *kgd)
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{
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return (struct amdgpu_device *)kgd;
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}
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static void lock_srbm(struct kgd_dev *kgd, uint32_t mec, uint32_t pipe,
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uint32_t queue, uint32_t vmid)
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{
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struct amdgpu_device *adev = get_amdgpu_device(kgd);
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uint32_t value = PIPEID(pipe) | MEID(mec) | VMID(vmid) | QUEUEID(queue);
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mutex_lock(&adev->srbm_mutex);
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WREG32(mmSRBM_GFX_CNTL, value);
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}
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static void unlock_srbm(struct kgd_dev *kgd)
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{
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struct amdgpu_device *adev = get_amdgpu_device(kgd);
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WREG32(mmSRBM_GFX_CNTL, 0);
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mutex_unlock(&adev->srbm_mutex);
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}
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static void acquire_queue(struct kgd_dev *kgd, uint32_t pipe_id,
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uint32_t queue_id)
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{
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uint32_t mec = (++pipe_id / VI_PIPE_PER_MEC) + 1;
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uint32_t pipe = (pipe_id % VI_PIPE_PER_MEC);
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lock_srbm(kgd, mec, pipe, queue_id, 0);
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}
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static void release_queue(struct kgd_dev *kgd)
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{
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unlock_srbm(kgd);
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}
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static void kgd_program_sh_mem_settings(struct kgd_dev *kgd, uint32_t vmid,
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uint32_t sh_mem_config,
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uint32_t sh_mem_ape1_base,
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uint32_t sh_mem_ape1_limit,
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uint32_t sh_mem_bases)
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{
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struct amdgpu_device *adev = get_amdgpu_device(kgd);
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lock_srbm(kgd, 0, 0, 0, vmid);
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WREG32(mmSH_MEM_CONFIG, sh_mem_config);
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WREG32(mmSH_MEM_APE1_BASE, sh_mem_ape1_base);
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WREG32(mmSH_MEM_APE1_LIMIT, sh_mem_ape1_limit);
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WREG32(mmSH_MEM_BASES, sh_mem_bases);
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unlock_srbm(kgd);
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}
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static int kgd_set_pasid_vmid_mapping(struct kgd_dev *kgd, unsigned int pasid,
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unsigned int vmid)
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{
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struct amdgpu_device *adev = get_amdgpu_device(kgd);
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/*
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* We have to assume that there is no outstanding mapping.
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* The ATC_VMID_PASID_MAPPING_UPDATE_STATUS bit could be 0 because
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* a mapping is in progress or because a mapping finished
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* and the SW cleared it.
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* So the protocol is to always wait & clear.
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*/
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uint32_t pasid_mapping = (pasid == 0) ? 0 : (uint32_t)pasid |
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ATC_VMID0_PASID_MAPPING__VALID_MASK;
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WREG32(mmATC_VMID0_PASID_MAPPING + vmid, pasid_mapping);
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while (!(RREG32(mmATC_VMID_PASID_MAPPING_UPDATE_STATUS) & (1U << vmid)))
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cpu_relax();
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WREG32(mmATC_VMID_PASID_MAPPING_UPDATE_STATUS, 1U << vmid);
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/* Mapping vmid to pasid also for IH block */
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WREG32(mmIH_VMID_0_LUT + vmid, pasid_mapping);
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return 0;
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}
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static int kgd_init_pipeline(struct kgd_dev *kgd, uint32_t pipe_id,
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uint32_t hpd_size, uint64_t hpd_gpu_addr)
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{
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return 0;
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}
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static int kgd_init_interrupts(struct kgd_dev *kgd, uint32_t pipe_id)
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{
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struct amdgpu_device *adev = get_amdgpu_device(kgd);
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uint32_t mec;
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uint32_t pipe;
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mec = (++pipe_id / VI_PIPE_PER_MEC) + 1;
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pipe = (pipe_id % VI_PIPE_PER_MEC);
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lock_srbm(kgd, mec, pipe, 0, 0);
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WREG32(mmCPC_INT_CNTL, CP_INT_CNTL_RING0__TIME_STAMP_INT_ENABLE_MASK);
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unlock_srbm(kgd);
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return 0;
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}
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static inline uint32_t get_sdma_base_addr(struct cik_sdma_rlc_registers *m)
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{
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return 0;
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}
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static inline struct vi_mqd *get_mqd(void *mqd)
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{
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return (struct vi_mqd *)mqd;
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}
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static inline struct cik_sdma_rlc_registers *get_sdma_mqd(void *mqd)
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{
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return (struct cik_sdma_rlc_registers *)mqd;
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}
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static int kgd_hqd_load(struct kgd_dev *kgd, void *mqd, uint32_t pipe_id,
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uint32_t queue_id, uint32_t __user *wptr)
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{
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struct vi_mqd *m;
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uint32_t shadow_wptr, valid_wptr;
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struct amdgpu_device *adev = get_amdgpu_device(kgd);
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m = get_mqd(mqd);
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valid_wptr = copy_from_user(&shadow_wptr, wptr, sizeof(shadow_wptr));
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acquire_queue(kgd, pipe_id, queue_id);
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WREG32(mmCP_MQD_CONTROL, m->cp_mqd_control);
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WREG32(mmCP_MQD_BASE_ADDR, m->cp_mqd_base_addr_lo);
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WREG32(mmCP_MQD_BASE_ADDR_HI, m->cp_mqd_base_addr_hi);
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WREG32(mmCP_HQD_VMID, m->cp_hqd_vmid);
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WREG32(mmCP_HQD_PERSISTENT_STATE, m->cp_hqd_persistent_state);
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WREG32(mmCP_HQD_PIPE_PRIORITY, m->cp_hqd_pipe_priority);
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WREG32(mmCP_HQD_QUEUE_PRIORITY, m->cp_hqd_queue_priority);
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WREG32(mmCP_HQD_QUANTUM, m->cp_hqd_quantum);
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WREG32(mmCP_HQD_PQ_BASE, m->cp_hqd_pq_base_lo);
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WREG32(mmCP_HQD_PQ_BASE_HI, m->cp_hqd_pq_base_hi);
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WREG32(mmCP_HQD_PQ_RPTR_REPORT_ADDR, m->cp_hqd_pq_rptr_report_addr_lo);
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WREG32(mmCP_HQD_PQ_RPTR_REPORT_ADDR_HI,
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m->cp_hqd_pq_rptr_report_addr_hi);
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if (valid_wptr > 0)
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WREG32(mmCP_HQD_PQ_WPTR, shadow_wptr);
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WREG32(mmCP_HQD_PQ_CONTROL, m->cp_hqd_pq_control);
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WREG32(mmCP_HQD_PQ_DOORBELL_CONTROL, m->cp_hqd_pq_doorbell_control);
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WREG32(mmCP_HQD_EOP_BASE_ADDR, m->cp_hqd_eop_base_addr_lo);
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WREG32(mmCP_HQD_EOP_BASE_ADDR_HI, m->cp_hqd_eop_base_addr_hi);
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WREG32(mmCP_HQD_EOP_CONTROL, m->cp_hqd_eop_control);
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WREG32(mmCP_HQD_EOP_RPTR, m->cp_hqd_eop_rptr);
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WREG32(mmCP_HQD_EOP_WPTR, m->cp_hqd_eop_wptr);
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WREG32(mmCP_HQD_EOP_EVENTS, m->cp_hqd_eop_done_events);
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WREG32(mmCP_HQD_CTX_SAVE_BASE_ADDR_LO, m->cp_hqd_ctx_save_base_addr_lo);
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WREG32(mmCP_HQD_CTX_SAVE_BASE_ADDR_HI, m->cp_hqd_ctx_save_base_addr_hi);
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WREG32(mmCP_HQD_CTX_SAVE_CONTROL, m->cp_hqd_ctx_save_control);
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WREG32(mmCP_HQD_CNTL_STACK_OFFSET, m->cp_hqd_cntl_stack_offset);
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WREG32(mmCP_HQD_CNTL_STACK_SIZE, m->cp_hqd_cntl_stack_size);
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WREG32(mmCP_HQD_WG_STATE_OFFSET, m->cp_hqd_wg_state_offset);
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WREG32(mmCP_HQD_CTX_SAVE_SIZE, m->cp_hqd_ctx_save_size);
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WREG32(mmCP_HQD_IB_CONTROL, m->cp_hqd_ib_control);
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WREG32(mmCP_HQD_DEQUEUE_REQUEST, m->cp_hqd_dequeue_request);
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WREG32(mmCP_HQD_ERROR, m->cp_hqd_error);
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WREG32(mmCP_HQD_EOP_WPTR_MEM, m->cp_hqd_eop_wptr_mem);
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WREG32(mmCP_HQD_EOP_DONES, m->cp_hqd_eop_dones);
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WREG32(mmCP_HQD_ACTIVE, m->cp_hqd_active);
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release_queue(kgd);
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return 0;
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}
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static int kgd_hqd_sdma_load(struct kgd_dev *kgd, void *mqd)
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{
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return 0;
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}
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static bool kgd_hqd_is_occupied(struct kgd_dev *kgd, uint64_t queue_address,
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uint32_t pipe_id, uint32_t queue_id)
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{
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struct amdgpu_device *adev = get_amdgpu_device(kgd);
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uint32_t act;
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bool retval = false;
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uint32_t low, high;
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acquire_queue(kgd, pipe_id, queue_id);
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act = RREG32(mmCP_HQD_ACTIVE);
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if (act) {
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low = lower_32_bits(queue_address >> 8);
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high = upper_32_bits(queue_address >> 8);
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if (low == RREG32(mmCP_HQD_PQ_BASE) &&
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high == RREG32(mmCP_HQD_PQ_BASE_HI))
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retval = true;
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}
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release_queue(kgd);
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return retval;
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}
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static bool kgd_hqd_sdma_is_occupied(struct kgd_dev *kgd, void *mqd)
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{
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struct amdgpu_device *adev = get_amdgpu_device(kgd);
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struct cik_sdma_rlc_registers *m;
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uint32_t sdma_base_addr;
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uint32_t sdma_rlc_rb_cntl;
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m = get_sdma_mqd(mqd);
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sdma_base_addr = get_sdma_base_addr(m);
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sdma_rlc_rb_cntl = RREG32(sdma_base_addr + mmSDMA0_RLC0_RB_CNTL);
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if (sdma_rlc_rb_cntl & SDMA0_RLC0_RB_CNTL__RB_ENABLE_MASK)
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return true;
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return false;
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}
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static int kgd_hqd_destroy(struct kgd_dev *kgd, uint32_t reset_type,
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unsigned int timeout, uint32_t pipe_id,
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uint32_t queue_id)
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{
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struct amdgpu_device *adev = get_amdgpu_device(kgd);
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uint32_t temp;
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acquire_queue(kgd, pipe_id, queue_id);
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WREG32(mmCP_HQD_DEQUEUE_REQUEST, reset_type);
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while (true) {
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temp = RREG32(mmCP_HQD_ACTIVE);
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if (temp & CP_HQD_ACTIVE__ACTIVE_MASK)
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break;
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if (timeout == 0) {
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pr_err("kfd: cp queue preemption time out (%dms)\n",
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temp);
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release_queue(kgd);
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return -ETIME;
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}
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msleep(20);
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timeout -= 20;
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}
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release_queue(kgd);
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return 0;
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}
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static int kgd_hqd_sdma_destroy(struct kgd_dev *kgd, void *mqd,
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unsigned int timeout)
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{
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struct amdgpu_device *adev = get_amdgpu_device(kgd);
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struct cik_sdma_rlc_registers *m;
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uint32_t sdma_base_addr;
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uint32_t temp;
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m = get_sdma_mqd(mqd);
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sdma_base_addr = get_sdma_base_addr(m);
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temp = RREG32(sdma_base_addr + mmSDMA0_RLC0_RB_CNTL);
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temp = temp & ~SDMA0_RLC0_RB_CNTL__RB_ENABLE_MASK;
|
|
WREG32(sdma_base_addr + mmSDMA0_RLC0_RB_CNTL, temp);
|
|
|
|
while (true) {
|
|
temp = RREG32(sdma_base_addr + mmSDMA0_RLC0_CONTEXT_STATUS);
|
|
if (temp & SDMA0_STATUS_REG__RB_CMD_IDLE__SHIFT)
|
|
break;
|
|
if (timeout == 0)
|
|
return -ETIME;
|
|
msleep(20);
|
|
timeout -= 20;
|
|
}
|
|
|
|
WREG32(sdma_base_addr + mmSDMA0_RLC0_DOORBELL, 0);
|
|
WREG32(sdma_base_addr + mmSDMA0_RLC0_RB_RPTR, 0);
|
|
WREG32(sdma_base_addr + mmSDMA0_RLC0_RB_WPTR, 0);
|
|
WREG32(sdma_base_addr + mmSDMA0_RLC0_RB_BASE, 0);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static bool get_atc_vmid_pasid_mapping_valid(struct kgd_dev *kgd,
|
|
uint8_t vmid)
|
|
{
|
|
uint32_t reg;
|
|
struct amdgpu_device *adev = (struct amdgpu_device *) kgd;
|
|
|
|
reg = RREG32(mmATC_VMID0_PASID_MAPPING + vmid);
|
|
return reg & ATC_VMID0_PASID_MAPPING__VALID_MASK;
|
|
}
|
|
|
|
static uint16_t get_atc_vmid_pasid_mapping_pasid(struct kgd_dev *kgd,
|
|
uint8_t vmid)
|
|
{
|
|
uint32_t reg;
|
|
struct amdgpu_device *adev = (struct amdgpu_device *) kgd;
|
|
|
|
reg = RREG32(mmATC_VMID0_PASID_MAPPING + vmid);
|
|
return reg & ATC_VMID0_PASID_MAPPING__VALID_MASK;
|
|
}
|
|
|
|
static void write_vmid_invalidate_request(struct kgd_dev *kgd, uint8_t vmid)
|
|
{
|
|
struct amdgpu_device *adev = (struct amdgpu_device *) kgd;
|
|
|
|
WREG32(mmVM_INVALIDATE_REQUEST, 1 << vmid);
|
|
}
|
|
|
|
static int kgd_address_watch_disable(struct kgd_dev *kgd)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static int kgd_address_watch_execute(struct kgd_dev *kgd,
|
|
unsigned int watch_point_id,
|
|
uint32_t cntl_val,
|
|
uint32_t addr_hi,
|
|
uint32_t addr_lo)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static int kgd_wave_control_execute(struct kgd_dev *kgd,
|
|
uint32_t gfx_index_val,
|
|
uint32_t sq_cmd)
|
|
{
|
|
struct amdgpu_device *adev = get_amdgpu_device(kgd);
|
|
uint32_t data = 0;
|
|
|
|
mutex_lock(&adev->grbm_idx_mutex);
|
|
|
|
WREG32(mmGRBM_GFX_INDEX, gfx_index_val);
|
|
WREG32(mmSQ_CMD, sq_cmd);
|
|
|
|
data = REG_SET_FIELD(data, GRBM_GFX_INDEX,
|
|
INSTANCE_BROADCAST_WRITES, 1);
|
|
data = REG_SET_FIELD(data, GRBM_GFX_INDEX,
|
|
SH_BROADCAST_WRITES, 1);
|
|
data = REG_SET_FIELD(data, GRBM_GFX_INDEX,
|
|
SE_BROADCAST_WRITES, 1);
|
|
|
|
WREG32(mmGRBM_GFX_INDEX, data);
|
|
mutex_unlock(&adev->grbm_idx_mutex);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static uint32_t kgd_address_watch_get_offset(struct kgd_dev *kgd,
|
|
unsigned int watch_point_id,
|
|
unsigned int reg_offset)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static uint16_t get_fw_version(struct kgd_dev *kgd, enum kgd_engine_type type)
|
|
{
|
|
struct amdgpu_device *adev = (struct amdgpu_device *) kgd;
|
|
const union amdgpu_firmware_header *hdr;
|
|
|
|
BUG_ON(kgd == NULL);
|
|
|
|
switch (type) {
|
|
case KGD_ENGINE_PFP:
|
|
hdr = (const union amdgpu_firmware_header *)
|
|
adev->gfx.pfp_fw->data;
|
|
break;
|
|
|
|
case KGD_ENGINE_ME:
|
|
hdr = (const union amdgpu_firmware_header *)
|
|
adev->gfx.me_fw->data;
|
|
break;
|
|
|
|
case KGD_ENGINE_CE:
|
|
hdr = (const union amdgpu_firmware_header *)
|
|
adev->gfx.ce_fw->data;
|
|
break;
|
|
|
|
case KGD_ENGINE_MEC1:
|
|
hdr = (const union amdgpu_firmware_header *)
|
|
adev->gfx.mec_fw->data;
|
|
break;
|
|
|
|
case KGD_ENGINE_MEC2:
|
|
hdr = (const union amdgpu_firmware_header *)
|
|
adev->gfx.mec2_fw->data;
|
|
break;
|
|
|
|
case KGD_ENGINE_RLC:
|
|
hdr = (const union amdgpu_firmware_header *)
|
|
adev->gfx.rlc_fw->data;
|
|
break;
|
|
|
|
case KGD_ENGINE_SDMA1:
|
|
hdr = (const union amdgpu_firmware_header *)
|
|
adev->sdma[0].fw->data;
|
|
break;
|
|
|
|
case KGD_ENGINE_SDMA2:
|
|
hdr = (const union amdgpu_firmware_header *)
|
|
adev->sdma[1].fw->data;
|
|
break;
|
|
|
|
default:
|
|
return 0;
|
|
}
|
|
|
|
if (hdr == NULL)
|
|
return 0;
|
|
|
|
/* Only 12 bit in use*/
|
|
return hdr->common.ucode_version;
|
|
}
|