/*
 * Copyright 2014 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 "amdgpu_amdkfd.h"
#include "amd_shared.h"

#include "amdgpu.h"
#include "amdgpu_gfx.h"
#include "amdgpu_dma_buf.h"
#include <linux/module.h>
#include <linux/dma-buf.h>
#include "amdgpu_xgmi.h"

static const unsigned int compute_vmid_bitmap = 0xFF00;

/* Total memory size in system memory and all GPU VRAM. Used to
 * estimate worst case amount of memory to reserve for page tables
 */
uint64_t amdgpu_amdkfd_total_mem_size;

int amdgpu_amdkfd_init(void)
{
        struct sysinfo si;
        int ret;

        si_meminfo(&si);
        amdgpu_amdkfd_total_mem_size = si.totalram - si.totalhigh;
        amdgpu_amdkfd_total_mem_size *= si.mem_unit;

#ifdef CONFIG_HSA_AMD
        ret = kgd2kfd_init();
        amdgpu_amdkfd_gpuvm_init_mem_limits();
#else
        ret = -ENOENT;
#endif

        return ret;
}

void amdgpu_amdkfd_fini(void)
{
        kgd2kfd_exit();
}

void amdgpu_amdkfd_device_probe(struct amdgpu_device *adev)
{
        const struct kfd2kgd_calls *kfd2kgd;

        switch (adev->asic_type) {
#ifdef CONFIG_DRM_AMDGPU_CIK
        case CHIP_KAVERI:
        case CHIP_HAWAII:
                kfd2kgd = amdgpu_amdkfd_gfx_7_get_functions();
                break;
#endif
        case CHIP_CARRIZO:
        case CHIP_TONGA:
        case CHIP_FIJI:
        case CHIP_POLARIS10:
        case CHIP_POLARIS11:
        case CHIP_POLARIS12:
        case CHIP_VEGAM:
                kfd2kgd = amdgpu_amdkfd_gfx_8_0_get_functions();
                break;
        case CHIP_VEGA10:
        case CHIP_VEGA12:
        case CHIP_VEGA20:
        case CHIP_RAVEN:
                kfd2kgd = amdgpu_amdkfd_gfx_9_0_get_functions();
                break;
        case CHIP_NAVI10:
                kfd2kgd = amdgpu_amdkfd_gfx_10_0_get_functions();
                break;
        default:
                dev_info(adev->dev, "kfd not supported on this ASIC\n");
                return;
        }

        adev->kfd.dev = kgd2kfd_probe((struct kgd_dev *)adev,
                                      adev->pdev, kfd2kgd);

        if (adev->kfd.dev)
                amdgpu_amdkfd_total_mem_size += adev->gmc.real_vram_size;
}

/**
 * amdgpu_doorbell_get_kfd_info - Report doorbell configuration required to
 *                                setup amdkfd
 *
 * @adev: amdgpu_device pointer
 * @aperture_base: output returning doorbell aperture base physical address
 * @aperture_size: output returning doorbell aperture size in bytes
 * @start_offset: output returning # of doorbell bytes reserved for amdgpu.
 *
 * amdgpu and amdkfd share the doorbell aperture. amdgpu sets it up,
 * takes doorbells required for its own rings and reports the setup to amdkfd.
 * amdgpu reserved doorbells are at the start of the doorbell aperture.
 */
static void amdgpu_doorbell_get_kfd_info(struct amdgpu_device *adev,
                                         phys_addr_t *aperture_base,
                                         size_t *aperture_size,
                                         size_t *start_offset)
{
        /*
         * The first num_doorbells are used by amdgpu.
         * amdkfd takes whatever's left in the aperture.
         */
        if (adev->doorbell.size > adev->doorbell.num_doorbells * sizeof(u32)) {
                *aperture_base = adev->doorbell.base;
                *aperture_size = adev->doorbell.size;
                *start_offset = adev->doorbell.num_doorbells * sizeof(u32);
        } else {
                *aperture_base = 0;
                *aperture_size = 0;
                *start_offset = 0;
        }
}

void amdgpu_amdkfd_device_init(struct amdgpu_device *adev)
{
        int i;
        int last_valid_bit;

        if (adev->kfd.dev) {
                struct kgd2kfd_shared_resources gpu_resources = {
                        .compute_vmid_bitmap = compute_vmid_bitmap,
                        .num_pipe_per_mec = adev->gfx.mec.num_pipe_per_mec,
                        .num_queue_per_pipe = adev->gfx.mec.num_queue_per_pipe,
                        .gpuvm_size = min(adev->vm_manager.max_pfn
                                          << AMDGPU_GPU_PAGE_SHIFT,
                                          AMDGPU_GMC_HOLE_START),
                        .drm_render_minor = adev->ddev->render->index,
                        .sdma_doorbell_idx = adev->doorbell_index.sdma_engine,

                };

                /* this is going to have a few of the MSBs set that we need to
                 * clear
                 */
                bitmap_complement(gpu_resources.queue_bitmap,
                                  adev->gfx.mec.queue_bitmap,
                                  KGD_MAX_QUEUES);

                /* remove the KIQ bit as well */
                if (adev->gfx.kiq.ring.sched.ready)
                        clear_bit(amdgpu_gfx_mec_queue_to_bit(adev,
                                                          adev->gfx.kiq.ring.me - 1,
                                                          adev->gfx.kiq.ring.pipe,
                                                          adev->gfx.kiq.ring.queue),
                                  gpu_resources.queue_bitmap);

                /* According to linux/bitmap.h we shouldn't use bitmap_clear if
                 * nbits is not compile time constant
                 */
                last_valid_bit = 1 /* only first MEC can have compute queues */
                                * adev->gfx.mec.num_pipe_per_mec
                                * adev->gfx.mec.num_queue_per_pipe;
                for (i = last_valid_bit; i < KGD_MAX_QUEUES; ++i)
                        clear_bit(i, gpu_resources.queue_bitmap);

                amdgpu_doorbell_get_kfd_info(adev,
                                &gpu_resources.doorbell_physical_address,
                                &gpu_resources.doorbell_aperture_size,
                                &gpu_resources.doorbell_start_offset);

                /* Since SOC15, BIF starts to statically use the
                 * lower 12 bits of doorbell addresses for routing
                 * based on settings in registers like
                 * SDMA0_DOORBELL_RANGE etc..
                 * In order to route a doorbell to CP engine, the lower
                 * 12 bits of its address has to be outside the range
                 * set for SDMA, VCN, and IH blocks.
                 */
                if (adev->asic_type >= CHIP_VEGA10) {
                        gpu_resources.non_cp_doorbells_start =
                                        adev->doorbell_index.first_non_cp;
                        gpu_resources.non_cp_doorbells_end =
                                        adev->doorbell_index.last_non_cp;
                }

                kgd2kfd_device_init(adev->kfd.dev, &gpu_resources);
        }
}

void amdgpu_amdkfd_device_fini(struct amdgpu_device *adev)
{
        if (adev->kfd.dev) {
                kgd2kfd_device_exit(adev->kfd.dev);
                adev->kfd.dev = NULL;
        }
}

void amdgpu_amdkfd_interrupt(struct amdgpu_device *adev,
                const void *ih_ring_entry)
{
        if (adev->kfd.dev)
                kgd2kfd_interrupt(adev->kfd.dev, ih_ring_entry);
}

void amdgpu_amdkfd_suspend(struct amdgpu_device *adev)
{
        if (adev->kfd.dev)
                kgd2kfd_suspend(adev->kfd.dev);
}

int amdgpu_amdkfd_resume(struct amdgpu_device *adev)
{
        int r = 0;

        if (adev->kfd.dev)
                r = kgd2kfd_resume(adev->kfd.dev);

        return r;
}

int amdgpu_amdkfd_pre_reset(struct amdgpu_device *adev)
{
        int r = 0;

        if (adev->kfd.dev)
                r = kgd2kfd_pre_reset(adev->kfd.dev);

        return r;
}

int amdgpu_amdkfd_post_reset(struct amdgpu_device *adev)
{
        int r = 0;

        if (adev->kfd.dev)
                r = kgd2kfd_post_reset(adev->kfd.dev);

        return r;
}

void amdgpu_amdkfd_gpu_reset(struct kgd_dev *kgd)
{
        struct amdgpu_device *adev = (struct amdgpu_device *)kgd;

        if (amdgpu_device_should_recover_gpu(adev))
                amdgpu_device_gpu_recover(adev, NULL);
}

int amdgpu_amdkfd_alloc_gtt_mem(struct kgd_dev *kgd, size_t size,
                                void **mem_obj, uint64_t *gpu_addr,
                                void **cpu_ptr, bool mqd_gfx9)
{
        struct amdgpu_device *adev = (struct amdgpu_device *)kgd;
        struct amdgpu_bo *bo = NULL;
        struct amdgpu_bo_param bp;
        int r;
        void *cpu_ptr_tmp = NULL;

        memset(&bp, 0, sizeof(bp));
        bp.size = size;
        bp.byte_align = PAGE_SIZE;
        bp.domain = AMDGPU_GEM_DOMAIN_GTT;
        bp.flags = AMDGPU_GEM_CREATE_CPU_GTT_USWC;
        bp.type = ttm_bo_type_kernel;
        bp.resv = NULL;

        if (mqd_gfx9)
                bp.flags |= AMDGPU_GEM_CREATE_MQD_GFX9;

        r = amdgpu_bo_create(adev, &bp, &bo);
        if (r) {
                dev_err(adev->dev,
                        "failed to allocate BO for amdkfd (%d)\n", r);
                return r;
        }

        /* map the buffer */
        r = amdgpu_bo_reserve(bo, true);
        if (r) {
                dev_err(adev->dev, "(%d) failed to reserve bo for amdkfd\n", r);
                goto allocate_mem_reserve_bo_failed;
        }

        r = amdgpu_bo_pin(bo, AMDGPU_GEM_DOMAIN_GTT);
        if (r) {
                dev_err(adev->dev, "(%d) failed to pin bo for amdkfd\n", r);
                goto allocate_mem_pin_bo_failed;
        }

        r = amdgpu_ttm_alloc_gart(&bo->tbo);
        if (r) {
                dev_err(adev->dev, "%p bind failed\n", bo);
                goto allocate_mem_kmap_bo_failed;
        }

        r = amdgpu_bo_kmap(bo, &cpu_ptr_tmp);
        if (r) {
                dev_err(adev->dev,
                        "(%d) failed to map bo to kernel for amdkfd\n", r);
                goto allocate_mem_kmap_bo_failed;
        }

        *mem_obj = bo;
        *gpu_addr = amdgpu_bo_gpu_offset(bo);
        *cpu_ptr = cpu_ptr_tmp;

        amdgpu_bo_unreserve(bo);

        return 0;

allocate_mem_kmap_bo_failed:
        amdgpu_bo_unpin(bo);
allocate_mem_pin_bo_failed:
        amdgpu_bo_unreserve(bo);
allocate_mem_reserve_bo_failed:
        amdgpu_bo_unref(&bo);

        return r;
}

void amdgpu_amdkfd_free_gtt_mem(struct kgd_dev *kgd, void *mem_obj)
{
        struct amdgpu_bo *bo = (struct amdgpu_bo *) mem_obj;

        amdgpu_bo_reserve(bo, true);
        amdgpu_bo_kunmap(bo);
        amdgpu_bo_unpin(bo);
        amdgpu_bo_unreserve(bo);
        amdgpu_bo_unref(&(bo));
}

int amdgpu_amdkfd_alloc_gws(struct kgd_dev *kgd, size_t size,
                                void **mem_obj)
{
        struct amdgpu_device *adev = (struct amdgpu_device *)kgd;
        struct amdgpu_bo *bo = NULL;
        struct amdgpu_bo_param bp;
        int r;

        memset(&bp, 0, sizeof(bp));
        bp.size = size;
        bp.byte_align = 1;
        bp.domain = AMDGPU_GEM_DOMAIN_GWS;
        bp.flags = AMDGPU_GEM_CREATE_NO_CPU_ACCESS;
        bp.type = ttm_bo_type_device;
        bp.resv = NULL;

        r = amdgpu_bo_create(adev, &bp, &bo);
        if (r) {
                dev_err(adev->dev,
                        "failed to allocate gws BO for amdkfd (%d)\n", r);
                return r;
        }

        *mem_obj = bo;
        return 0;
}

void amdgpu_amdkfd_free_gws(struct kgd_dev *kgd, void *mem_obj)
{
        struct amdgpu_bo *bo = (struct amdgpu_bo *)mem_obj;

        amdgpu_bo_unref(&bo);
}

uint32_t amdgpu_amdkfd_get_fw_version(struct kgd_dev *kgd,
                                      enum kgd_engine_type type)
{
        struct amdgpu_device *adev = (struct amdgpu_device *)kgd;

        switch (type) {
        case KGD_ENGINE_PFP:
                return adev->gfx.pfp_fw_version;

        case KGD_ENGINE_ME:
                return adev->gfx.me_fw_version;

        case KGD_ENGINE_CE:
                return adev->gfx.ce_fw_version;

        case KGD_ENGINE_MEC1:
                return adev->gfx.mec_fw_version;

        case KGD_ENGINE_MEC2:
                return adev->gfx.mec2_fw_version;

        case KGD_ENGINE_RLC:
                return adev->gfx.rlc_fw_version;

        case KGD_ENGINE_SDMA1:
                return adev->sdma.instance[0].fw_version;

        case KGD_ENGINE_SDMA2:
                return adev->sdma.instance[1].fw_version;

        default:
                return 0;
        }

        return 0;
}

void amdgpu_amdkfd_get_local_mem_info(struct kgd_dev *kgd,
                                      struct kfd_local_mem_info *mem_info)
{
        struct amdgpu_device *adev = (struct amdgpu_device *)kgd;
        uint64_t address_mask = adev->dev->dma_mask ? ~*adev->dev->dma_mask :
                                             ~((1ULL << 32) - 1);
        resource_size_t aper_limit = adev->gmc.aper_base + adev->gmc.aper_size;

        memset(mem_info, 0, sizeof(*mem_info));
        if (!(adev->gmc.aper_base & address_mask || aper_limit & address_mask)) {
                mem_info->local_mem_size_public = adev->gmc.visible_vram_size;
                mem_info->local_mem_size_private = adev->gmc.real_vram_size -
                                adev->gmc.visible_vram_size;
        } else {
                mem_info->local_mem_size_public = 0;
                mem_info->local_mem_size_private = adev->gmc.real_vram_size;
        }
        mem_info->vram_width = adev->gmc.vram_width;

        pr_debug("Address base: %pap limit %pap public 0x%llx private 0x%llx\n",
                        &adev->gmc.aper_base, &aper_limit,
                        mem_info->local_mem_size_public,
                        mem_info->local_mem_size_private);

        if (amdgpu_sriov_vf(adev))
                mem_info->mem_clk_max = adev->clock.default_mclk / 100;
        else if (adev->powerplay.pp_funcs) {
                if (amdgpu_emu_mode == 1)
                        mem_info->mem_clk_max = 0;
                else
                        mem_info->mem_clk_max = amdgpu_dpm_get_mclk(adev, false) / 100;
        } else
                mem_info->mem_clk_max = 100;
}

uint64_t amdgpu_amdkfd_get_gpu_clock_counter(struct kgd_dev *kgd)
{
        struct amdgpu_device *adev = (struct amdgpu_device *)kgd;

        if (adev->gfx.funcs->get_gpu_clock_counter)
                return adev->gfx.funcs->get_gpu_clock_counter(adev);
        return 0;
}

uint32_t amdgpu_amdkfd_get_max_engine_clock_in_mhz(struct kgd_dev *kgd)
{
        struct amdgpu_device *adev = (struct amdgpu_device *)kgd;

        /* the sclk is in quantas of 10kHz */
        if (amdgpu_sriov_vf(adev))
                return adev->clock.default_sclk / 100;
        else if (adev->powerplay.pp_funcs)
                return amdgpu_dpm_get_sclk(adev, false) / 100;
        else
                return 100;
}

void amdgpu_amdkfd_get_cu_info(struct kgd_dev *kgd, struct kfd_cu_info *cu_info)
{
        struct amdgpu_device *adev = (struct amdgpu_device *)kgd;
        struct amdgpu_cu_info acu_info = adev->gfx.cu_info;

        memset(cu_info, 0, sizeof(*cu_info));
        if (sizeof(cu_info->cu_bitmap) != sizeof(acu_info.bitmap))
                return;

        cu_info->cu_active_number = acu_info.number;
        cu_info->cu_ao_mask = acu_info.ao_cu_mask;
        memcpy(&cu_info->cu_bitmap[0], &acu_info.bitmap[0],
               sizeof(acu_info.bitmap));
        cu_info->num_shader_engines = adev->gfx.config.max_shader_engines;
        cu_info->num_shader_arrays_per_engine = adev->gfx.config.max_sh_per_se;
        cu_info->num_cu_per_sh = adev->gfx.config.max_cu_per_sh;
        cu_info->simd_per_cu = acu_info.simd_per_cu;
        cu_info->max_waves_per_simd = acu_info.max_waves_per_simd;
        cu_info->wave_front_size = acu_info.wave_front_size;
        cu_info->max_scratch_slots_per_cu = acu_info.max_scratch_slots_per_cu;
        cu_info->lds_size = acu_info.lds_size;
}

int amdgpu_amdkfd_get_dmabuf_info(struct kgd_dev *kgd, int dma_buf_fd,
                                  struct kgd_dev **dma_buf_kgd,
                                  uint64_t *bo_size, void *metadata_buffer,
                                  size_t buffer_size, uint32_t *metadata_size,
                                  uint32_t *flags)
{
        struct amdgpu_device *adev = (struct amdgpu_device *)kgd;
        struct dma_buf *dma_buf;
        struct drm_gem_object *obj;
        struct amdgpu_bo *bo;
        uint64_t metadata_flags;
        int r = -EINVAL;

        dma_buf = dma_buf_get(dma_buf_fd);
        if (IS_ERR(dma_buf))
                return PTR_ERR(dma_buf);

        if (dma_buf->ops != &amdgpu_dmabuf_ops)
                /* Can't handle non-graphics buffers */
                goto out_put;

        obj = dma_buf->priv;
        if (obj->dev->driver != adev->ddev->driver)
                /* Can't handle buffers from different drivers */
                goto out_put;

        adev = obj->dev->dev_private;
        bo = gem_to_amdgpu_bo(obj);
        if (!(bo->preferred_domains & (AMDGPU_GEM_DOMAIN_VRAM |
                                    AMDGPU_GEM_DOMAIN_GTT)))
                /* Only VRAM and GTT BOs are supported */
                goto out_put;

        r = 0;
        if (dma_buf_kgd)
                *dma_buf_kgd = (struct kgd_dev *)adev;
        if (bo_size)
                *bo_size = amdgpu_bo_size(bo);
        if (metadata_size)
                *metadata_size = bo->metadata_size;
        if (metadata_buffer)
                r = amdgpu_bo_get_metadata(bo, metadata_buffer, buffer_size,
                                           metadata_size, &metadata_flags);
        if (flags) {
                *flags = (bo->preferred_domains & AMDGPU_GEM_DOMAIN_VRAM) ?
                        ALLOC_MEM_FLAGS_VRAM : ALLOC_MEM_FLAGS_GTT;

                if (bo->flags & AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED)
                        *flags |= ALLOC_MEM_FLAGS_PUBLIC;
        }

out_put:
        dma_buf_put(dma_buf);
        return r;
}

uint64_t amdgpu_amdkfd_get_vram_usage(struct kgd_dev *kgd)
{
        struct amdgpu_device *adev = (struct amdgpu_device *)kgd;

        return amdgpu_vram_mgr_usage(&adev->mman.bdev.man[TTM_PL_VRAM]);
}

uint64_t amdgpu_amdkfd_get_hive_id(struct kgd_dev *kgd)
{
        struct amdgpu_device *adev = (struct amdgpu_device *)kgd;

        return adev->gmc.xgmi.hive_id;
}
uint8_t amdgpu_amdkfd_get_xgmi_hops_count(struct kgd_dev *dst, struct kgd_dev *src)
{
        struct amdgpu_device *peer_adev = (struct amdgpu_device *)src;
        struct amdgpu_device *adev = (struct amdgpu_device *)dst;
        int ret = amdgpu_xgmi_get_hops_count(adev, peer_adev);

        if (ret < 0) {
                DRM_ERROR("amdgpu: failed to get  xgmi hops count between node %d and %d. ret = %d\n",
                        adev->gmc.xgmi.physical_node_id,
                        peer_adev->gmc.xgmi.physical_node_id, ret);
                ret = 0;
        }
        return  (uint8_t)ret;
}

uint64_t amdgpu_amdkfd_get_mmio_remap_phys_addr(struct kgd_dev *kgd)
{
        struct amdgpu_device *adev = (struct amdgpu_device *)kgd;

        return adev->rmmio_remap.bus_addr;
}

uint32_t amdgpu_amdkfd_get_num_gws(struct kgd_dev *kgd)
{
        struct amdgpu_device *adev = (struct amdgpu_device *)kgd;

        return adev->gds.gws_size;
}

int amdgpu_amdkfd_submit_ib(struct kgd_dev *kgd, enum kgd_engine_type engine,
                                uint32_t vmid, uint64_t gpu_addr,
                                uint32_t *ib_cmd, uint32_t ib_len)
{
        struct amdgpu_device *adev = (struct amdgpu_device *)kgd;
        struct amdgpu_job *job;
        struct amdgpu_ib *ib;
        struct amdgpu_ring *ring;
        struct dma_fence *f = NULL;
        int ret;

        switch (engine) {
        case KGD_ENGINE_MEC1:
                ring = &adev->gfx.compute_ring[0];
                break;
        case KGD_ENGINE_SDMA1:
                ring = &adev->sdma.instance[0].ring;
                break;
        case KGD_ENGINE_SDMA2:
                ring = &adev->sdma.instance[1].ring;
                break;
        default:
                pr_err("Invalid engine in IB submission: %d\n", engine);
                ret = -EINVAL;
                goto err;
        }

        ret = amdgpu_job_alloc(adev, 1, &job, NULL);
        if (ret)
                goto err;

        ib = &job->ibs[0];
        memset(ib, 0, sizeof(struct amdgpu_ib));

        ib->gpu_addr = gpu_addr;
        ib->ptr = ib_cmd;
        ib->length_dw = ib_len;
        /* This works for NO_HWS. TODO: need to handle without knowing VMID */
        job->vmid = vmid;

        ret = amdgpu_ib_schedule(ring, 1, ib, job, &f);
        if (ret) {
                DRM_ERROR("amdgpu: failed to schedule IB.\n");
                goto err_ib_sched;
        }

        ret = dma_fence_wait(f, false);

err_ib_sched:
        dma_fence_put(f);
        amdgpu_job_free(job);
err:
        return ret;
}

void amdgpu_amdkfd_set_compute_idle(struct kgd_dev *kgd, bool idle)
{
        struct amdgpu_device *adev = (struct amdgpu_device *)kgd;

        if (adev->powerplay.pp_funcs &&
            adev->powerplay.pp_funcs->switch_power_profile)
                amdgpu_dpm_switch_power_profile(adev,
                                                PP_SMC_POWER_PROFILE_COMPUTE,
                                                !idle);
}

bool amdgpu_amdkfd_is_kfd_vmid(struct amdgpu_device *adev, u32 vmid)
{
        if (adev->kfd.dev) {
                if ((1 << vmid) & compute_vmid_bitmap)
                        return true;
        }

        return false;
}

bool amdgpu_amdkfd_have_atomics_support(struct kgd_dev *kgd)
{
        struct amdgpu_device *adev = (struct amdgpu_device *)kgd;

        return adev->have_atomics_support;
}

#ifndef CONFIG_HSA_AMD
bool amdkfd_fence_check_mm(struct dma_fence *f, struct mm_struct *mm)
{
        return false;
}

void amdgpu_amdkfd_unreserve_memory_limit(struct amdgpu_bo *bo)
{
}

void amdgpu_amdkfd_gpuvm_destroy_cb(struct amdgpu_device *adev,
                                        struct amdgpu_vm *vm)
{
}

struct amdgpu_amdkfd_fence *to_amdgpu_amdkfd_fence(struct dma_fence *f)
{
        return NULL;
}

int amdgpu_amdkfd_evict_userptr(struct kgd_mem *mem, struct mm_struct *mm)
{
        return 0;
}

struct kfd2kgd_calls *amdgpu_amdkfd_gfx_7_get_functions(void)
{
        return NULL;
}

struct kfd2kgd_calls *amdgpu_amdkfd_gfx_8_0_get_functions(void)
{
        return NULL;
}

struct kfd2kgd_calls *amdgpu_amdkfd_gfx_9_0_get_functions(void)
{
        return NULL;
}

struct kfd2kgd_calls *amdgpu_amdkfd_gfx_10_0_get_functions(void)
{
        return NULL;
}

struct kfd_dev *kgd2kfd_probe(struct kgd_dev *kgd, struct pci_dev *pdev,
                              const struct kfd2kgd_calls *f2g)
{
        return NULL;
}

bool kgd2kfd_device_init(struct kfd_dev *kfd,
                         const struct kgd2kfd_shared_resources *gpu_resources)
{
        return false;
}

void kgd2kfd_device_exit(struct kfd_dev *kfd)
{
}

void kgd2kfd_exit(void)
{
}

void kgd2kfd_suspend(struct kfd_dev *kfd)
{
}

int kgd2kfd_resume(struct kfd_dev *kfd)
{
        return 0;
}

int kgd2kfd_pre_reset(struct kfd_dev *kfd)
{
        return 0;
}

int kgd2kfd_post_reset(struct kfd_dev *kfd)
{
        return 0;
}

void kgd2kfd_interrupt(struct kfd_dev *kfd, const void *ih_ring_entry)
{
}

void kgd2kfd_set_sram_ecc_flag(struct kfd_dev *kfd)
{
}
#endif