| /* |
| * 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. |
| */ |
| |
| /* |
| * This file defines the private interface between the |
| * AMD kernel graphics drivers and the AMD KFD. |
| */ |
| |
| #ifndef KGD_KFD_INTERFACE_H_INCLUDED |
| #define KGD_KFD_INTERFACE_H_INCLUDED |
| |
| #include <linux/types.h> |
| #include <linux/bitmap.h> |
| #include <linux/dma-fence.h> |
| |
| struct pci_dev; |
| |
| #define KGD_MAX_QUEUES 128 |
| |
| struct kfd_dev; |
| struct kgd_dev; |
| |
| struct kgd_mem; |
| |
| enum kfd_preempt_type { |
| KFD_PREEMPT_TYPE_WAVEFRONT_DRAIN = 0, |
| KFD_PREEMPT_TYPE_WAVEFRONT_RESET, |
| }; |
| |
| struct kfd_vm_fault_info { |
| uint64_t page_addr; |
| uint32_t vmid; |
| uint32_t mc_id; |
| uint32_t status; |
| bool prot_valid; |
| bool prot_read; |
| bool prot_write; |
| bool prot_exec; |
| }; |
| |
| struct kfd_cu_info { |
| uint32_t num_shader_engines; |
| uint32_t num_shader_arrays_per_engine; |
| uint32_t num_cu_per_sh; |
| uint32_t cu_active_number; |
| uint32_t cu_ao_mask; |
| uint32_t simd_per_cu; |
| uint32_t max_waves_per_simd; |
| uint32_t wave_front_size; |
| uint32_t max_scratch_slots_per_cu; |
| uint32_t lds_size; |
| uint32_t cu_bitmap[4][4]; |
| }; |
| |
| /* For getting GPU local memory information from KGD */ |
| struct kfd_local_mem_info { |
| uint64_t local_mem_size_private; |
| uint64_t local_mem_size_public; |
| uint32_t vram_width; |
| uint32_t mem_clk_max; |
| }; |
| |
| enum kgd_memory_pool { |
| KGD_POOL_SYSTEM_CACHEABLE = 1, |
| KGD_POOL_SYSTEM_WRITECOMBINE = 2, |
| KGD_POOL_FRAMEBUFFER = 3, |
| }; |
| |
| /** |
| * enum kfd_sched_policy |
| * |
| * @KFD_SCHED_POLICY_HWS: H/W scheduling policy known as command processor (cp) |
| * scheduling. In this scheduling mode we're using the firmware code to |
| * schedule the user mode queues and kernel queues such as HIQ and DIQ. |
| * the HIQ queue is used as a special queue that dispatches the configuration |
| * to the cp and the user mode queues list that are currently running. |
| * the DIQ queue is a debugging queue that dispatches debugging commands to the |
| * firmware. |
| * in this scheduling mode user mode queues over subscription feature is |
| * enabled. |
| * |
| * @KFD_SCHED_POLICY_HWS_NO_OVERSUBSCRIPTION: The same as above but the over |
| * subscription feature disabled. |
| * |
| * @KFD_SCHED_POLICY_NO_HWS: no H/W scheduling policy is a mode which directly |
| * set the command processor registers and sets the queues "manually". This |
| * mode is used *ONLY* for debugging proposes. |
| * |
| */ |
| enum kfd_sched_policy { |
| KFD_SCHED_POLICY_HWS = 0, |
| KFD_SCHED_POLICY_HWS_NO_OVERSUBSCRIPTION, |
| KFD_SCHED_POLICY_NO_HWS |
| }; |
| |
| struct kgd2kfd_shared_resources { |
| /* Bit n == 1 means VMID n is available for KFD. */ |
| unsigned int compute_vmid_bitmap; |
| |
| /* number of pipes per mec */ |
| uint32_t num_pipe_per_mec; |
| |
| /* number of queues per pipe */ |
| uint32_t num_queue_per_pipe; |
| |
| /* Bit n == 1 means Queue n is available for KFD */ |
| DECLARE_BITMAP(queue_bitmap, KGD_MAX_QUEUES); |
| |
| /* SDMA doorbell assignments (SOC15 and later chips only). Only |
| * specific doorbells are routed to each SDMA engine. Others |
| * are routed to IH and VCN. They are not usable by the CP. |
| */ |
| uint32_t *sdma_doorbell_idx; |
| |
| /* From SOC15 onward, the doorbell index range not usable for CP |
| * queues. |
| */ |
| uint32_t non_cp_doorbells_start; |
| uint32_t non_cp_doorbells_end; |
| |
| /* Base address of doorbell aperture. */ |
| phys_addr_t doorbell_physical_address; |
| |
| /* Size in bytes of doorbell aperture. */ |
| size_t doorbell_aperture_size; |
| |
| /* Number of bytes at start of aperture reserved for KGD. */ |
| size_t doorbell_start_offset; |
| |
| /* GPUVM address space size in bytes */ |
| uint64_t gpuvm_size; |
| |
| /* Minor device number of the render node */ |
| int drm_render_minor; |
| }; |
| |
| struct tile_config { |
| uint32_t *tile_config_ptr; |
| uint32_t *macro_tile_config_ptr; |
| uint32_t num_tile_configs; |
| uint32_t num_macro_tile_configs; |
| |
| uint32_t gb_addr_config; |
| uint32_t num_banks; |
| uint32_t num_ranks; |
| }; |
| |
| #define KFD_MAX_NUM_OF_QUEUES_PER_DEVICE_DEFAULT 4096 |
| |
| /* |
| * Allocation flag domains |
| * NOTE: This must match the corresponding definitions in kfd_ioctl.h. |
| */ |
| #define ALLOC_MEM_FLAGS_VRAM (1 << 0) |
| #define ALLOC_MEM_FLAGS_GTT (1 << 1) |
| #define ALLOC_MEM_FLAGS_USERPTR (1 << 2) |
| #define ALLOC_MEM_FLAGS_DOORBELL (1 << 3) |
| #define ALLOC_MEM_FLAGS_MMIO_REMAP (1 << 4) |
| |
| /* |
| * Allocation flags attributes/access options. |
| * NOTE: This must match the corresponding definitions in kfd_ioctl.h. |
| */ |
| #define ALLOC_MEM_FLAGS_WRITABLE (1 << 31) |
| #define ALLOC_MEM_FLAGS_EXECUTABLE (1 << 30) |
| #define ALLOC_MEM_FLAGS_PUBLIC (1 << 29) |
| #define ALLOC_MEM_FLAGS_NO_SUBSTITUTE (1 << 28) /* TODO */ |
| #define ALLOC_MEM_FLAGS_AQL_QUEUE_MEM (1 << 27) |
| #define ALLOC_MEM_FLAGS_COHERENT (1 << 26) /* For GFXv9 or later */ |
| |
| /** |
| * struct kfd2kgd_calls |
| * |
| * @program_sh_mem_settings: A function that should initiate the memory |
| * properties such as main aperture memory type (cache / non cached) and |
| * secondary aperture base address, size and memory type. |
| * This function is used only for no cp scheduling mode. |
| * |
| * @set_pasid_vmid_mapping: Exposes pasid/vmid pair to the H/W for no cp |
| * scheduling mode. Only used for no cp scheduling mode. |
| * |
| * @hqd_load: Loads the mqd structure to a H/W hqd slot. used only for no cp |
| * sceduling mode. |
| * |
| * @hqd_sdma_load: Loads the SDMA mqd structure to a H/W SDMA hqd slot. |
| * used only for no HWS mode. |
| * |
| * @hqd_dump: Dumps CPC HQD registers to an array of address-value pairs. |
| * Array is allocated with kmalloc, needs to be freed with kfree by caller. |
| * |
| * @hqd_sdma_dump: Dumps SDMA HQD registers to an array of address-value pairs. |
| * Array is allocated with kmalloc, needs to be freed with kfree by caller. |
| * |
| * @hqd_is_occupies: Checks if a hqd slot is occupied. |
| * |
| * @hqd_destroy: Destructs and preempts the queue assigned to that hqd slot. |
| * |
| * @hqd_sdma_is_occupied: Checks if an SDMA hqd slot is occupied. |
| * |
| * @hqd_sdma_destroy: Destructs and preempts the SDMA queue assigned to that |
| * SDMA hqd slot. |
| * |
| * @set_scratch_backing_va: Sets VA for scratch backing memory of a VMID. |
| * Only used for no cp scheduling mode |
| * |
| * @get_tile_config: Returns GPU-specific tiling mode information |
| * |
| * @set_vm_context_page_table_base: Program page table base for a VMID |
| * |
| * @invalidate_tlbs: Invalidate TLBs for a specific PASID |
| * |
| * @invalidate_tlbs_vmid: Invalidate TLBs for a specific VMID |
| * |
| * @read_vmid_from_vmfault_reg: On Hawaii the VMID is not set in the |
| * IH ring entry. This function allows the KFD ISR to get the VMID |
| * from the fault status register as early as possible. |
| * |
| * @get_hive_id: Returns hive id of current device, 0 if xgmi is not enabled |
| * |
| * This structure contains function pointers to services that the kgd driver |
| * provides to amdkfd driver. |
| * |
| */ |
| struct kfd2kgd_calls { |
| /* Register access functions */ |
| void (*program_sh_mem_settings)(struct kgd_dev *kgd, uint32_t vmid, |
| uint32_t sh_mem_config, uint32_t sh_mem_ape1_base, |
| uint32_t sh_mem_ape1_limit, uint32_t sh_mem_bases); |
| |
| int (*set_pasid_vmid_mapping)(struct kgd_dev *kgd, unsigned int pasid, |
| unsigned int vmid); |
| |
| int (*init_interrupts)(struct kgd_dev *kgd, uint32_t pipe_id); |
| |
| int (*hqd_load)(struct kgd_dev *kgd, void *mqd, uint32_t pipe_id, |
| uint32_t queue_id, uint32_t __user *wptr, |
| uint32_t wptr_shift, uint32_t wptr_mask, |
| struct mm_struct *mm); |
| |
| int (*hqd_sdma_load)(struct kgd_dev *kgd, void *mqd, |
| uint32_t __user *wptr, struct mm_struct *mm); |
| |
| int (*hqd_dump)(struct kgd_dev *kgd, |
| uint32_t pipe_id, uint32_t queue_id, |
| uint32_t (**dump)[2], uint32_t *n_regs); |
| |
| int (*hqd_sdma_dump)(struct kgd_dev *kgd, |
| uint32_t engine_id, uint32_t queue_id, |
| uint32_t (**dump)[2], uint32_t *n_regs); |
| |
| bool (*hqd_is_occupied)(struct kgd_dev *kgd, uint64_t queue_address, |
| uint32_t pipe_id, uint32_t queue_id); |
| |
| int (*hqd_destroy)(struct kgd_dev *kgd, void *mqd, uint32_t reset_type, |
| unsigned int timeout, uint32_t pipe_id, |
| uint32_t queue_id); |
| |
| bool (*hqd_sdma_is_occupied)(struct kgd_dev *kgd, void *mqd); |
| |
| int (*hqd_sdma_destroy)(struct kgd_dev *kgd, void *mqd, |
| unsigned int timeout); |
| |
| int (*address_watch_disable)(struct kgd_dev *kgd); |
| int (*address_watch_execute)(struct kgd_dev *kgd, |
| unsigned int watch_point_id, |
| uint32_t cntl_val, |
| uint32_t addr_hi, |
| uint32_t addr_lo); |
| int (*wave_control_execute)(struct kgd_dev *kgd, |
| uint32_t gfx_index_val, |
| uint32_t sq_cmd); |
| uint32_t (*address_watch_get_offset)(struct kgd_dev *kgd, |
| unsigned int watch_point_id, |
| unsigned int reg_offset); |
| bool (*get_atc_vmid_pasid_mapping_valid)( |
| struct kgd_dev *kgd, |
| uint8_t vmid); |
| uint16_t (*get_atc_vmid_pasid_mapping_pasid)( |
| struct kgd_dev *kgd, |
| uint8_t vmid); |
| |
| void (*set_scratch_backing_va)(struct kgd_dev *kgd, |
| uint64_t va, uint32_t vmid); |
| int (*get_tile_config)(struct kgd_dev *kgd, struct tile_config *config); |
| |
| void (*set_vm_context_page_table_base)(struct kgd_dev *kgd, |
| uint32_t vmid, uint64_t page_table_base); |
| int (*invalidate_tlbs)(struct kgd_dev *kgd, uint16_t pasid); |
| int (*invalidate_tlbs_vmid)(struct kgd_dev *kgd, uint16_t vmid); |
| uint32_t (*read_vmid_from_vmfault_reg)(struct kgd_dev *kgd); |
| uint64_t (*get_hive_id)(struct kgd_dev *kgd); |
| |
| }; |
| |
| #endif /* KGD_KFD_INTERFACE_H_INCLUDED */ |
