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amdgpu.h revision 1.1
      1 /*	$NetBSD: amdgpu.h,v 1.1 2018/08/27 01:34:43 riastradh Exp $	*/
      2 
      3 /*
      4  * Copyright 2008 Advanced Micro Devices, Inc.
      5  * Copyright 2008 Red Hat Inc.
      6  * Copyright 2009 Jerome Glisse.
      7  *
      8  * Permission is hereby granted, free of charge, to any person obtaining a
      9  * copy of this software and associated documentation files (the "Software"),
     10  * to deal in the Software without restriction, including without limitation
     11  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
     12  * and/or sell copies of the Software, and to permit persons to whom the
     13  * Software is furnished to do so, subject to the following conditions:
     14  *
     15  * The above copyright notice and this permission notice shall be included in
     16  * all copies or substantial portions of the Software.
     17  *
     18  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
     19  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
     20  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
     21  * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
     22  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
     23  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
     24  * OTHER DEALINGS IN THE SOFTWARE.
     25  *
     26  * Authors: Dave Airlie
     27  *          Alex Deucher
     28  *          Jerome Glisse
     29  */
     30 #ifndef __AMDGPU_H__
     31 #define __AMDGPU_H__
     32 
     33 #include <linux/atomic.h>
     34 #include <linux/wait.h>
     35 #include <linux/list.h>
     36 #include <linux/kref.h>
     37 #include <linux/interval_tree.h>
     38 #include <linux/hashtable.h>
     39 #include <linux/fence.h>
     40 
     41 #include <ttm/ttm_bo_api.h>
     42 #include <ttm/ttm_bo_driver.h>
     43 #include <ttm/ttm_placement.h>
     44 #include <ttm/ttm_module.h>
     45 #include <ttm/ttm_execbuf_util.h>
     46 
     47 #include <drm/drmP.h>
     48 #include <drm/drm_gem.h>
     49 #include <drm/amdgpu_drm.h>
     50 
     51 #include "amd_shared.h"
     52 #include "amdgpu_mode.h"
     53 #include "amdgpu_ih.h"
     54 #include "amdgpu_irq.h"
     55 #include "amdgpu_ucode.h"
     56 #include "amdgpu_gds.h"
     57 
     58 #include "gpu_scheduler.h"
     59 
     60 /*
     61  * Modules parameters.
     62  */
     63 extern int amdgpu_modeset;
     64 extern int amdgpu_vram_limit;
     65 extern int amdgpu_gart_size;
     66 extern int amdgpu_benchmarking;
     67 extern int amdgpu_testing;
     68 extern int amdgpu_audio;
     69 extern int amdgpu_disp_priority;
     70 extern int amdgpu_hw_i2c;
     71 extern int amdgpu_pcie_gen2;
     72 extern int amdgpu_msi;
     73 extern int amdgpu_lockup_timeout;
     74 extern int amdgpu_dpm;
     75 extern int amdgpu_smc_load_fw;
     76 extern int amdgpu_aspm;
     77 extern int amdgpu_runtime_pm;
     78 extern int amdgpu_hard_reset;
     79 extern unsigned amdgpu_ip_block_mask;
     80 extern int amdgpu_bapm;
     81 extern int amdgpu_deep_color;
     82 extern int amdgpu_vm_size;
     83 extern int amdgpu_vm_block_size;
     84 extern int amdgpu_vm_fault_stop;
     85 extern int amdgpu_vm_debug;
     86 extern int amdgpu_enable_scheduler;
     87 extern int amdgpu_sched_jobs;
     88 extern int amdgpu_sched_hw_submission;
     89 extern int amdgpu_enable_semaphores;
     90 
     91 #define AMDGPU_WAIT_IDLE_TIMEOUT_IN_MS	        3000
     92 #define AMDGPU_MAX_USEC_TIMEOUT			100000	/* 100 ms */
     93 #define AMDGPU_FENCE_JIFFIES_TIMEOUT		(HZ / 2)
     94 /* AMDGPU_IB_POOL_SIZE must be a power of 2 */
     95 #define AMDGPU_IB_POOL_SIZE			16
     96 #define AMDGPU_DEBUGFS_MAX_COMPONENTS		32
     97 #define AMDGPUFB_CONN_LIMIT			4
     98 #define AMDGPU_BIOS_NUM_SCRATCH			8
     99 
    100 /* max number of rings */
    101 #define AMDGPU_MAX_RINGS			16
    102 #define AMDGPU_MAX_GFX_RINGS			1
    103 #define AMDGPU_MAX_COMPUTE_RINGS		8
    104 #define AMDGPU_MAX_VCE_RINGS			2
    105 
    106 /* max number of IP instances */
    107 #define AMDGPU_MAX_SDMA_INSTANCES		2
    108 
    109 /* number of hw syncs before falling back on blocking */
    110 #define AMDGPU_NUM_SYNCS			4
    111 
    112 /* hardcode that limit for now */
    113 #define AMDGPU_VA_RESERVED_SIZE			(8 << 20)
    114 
    115 /* hard reset data */
    116 #define AMDGPU_ASIC_RESET_DATA                  0x39d5e86b
    117 
    118 /* reset flags */
    119 #define AMDGPU_RESET_GFX			(1 << 0)
    120 #define AMDGPU_RESET_COMPUTE			(1 << 1)
    121 #define AMDGPU_RESET_DMA			(1 << 2)
    122 #define AMDGPU_RESET_CP				(1 << 3)
    123 #define AMDGPU_RESET_GRBM			(1 << 4)
    124 #define AMDGPU_RESET_DMA1			(1 << 5)
    125 #define AMDGPU_RESET_RLC			(1 << 6)
    126 #define AMDGPU_RESET_SEM			(1 << 7)
    127 #define AMDGPU_RESET_IH				(1 << 8)
    128 #define AMDGPU_RESET_VMC			(1 << 9)
    129 #define AMDGPU_RESET_MC				(1 << 10)
    130 #define AMDGPU_RESET_DISPLAY			(1 << 11)
    131 #define AMDGPU_RESET_UVD			(1 << 12)
    132 #define AMDGPU_RESET_VCE			(1 << 13)
    133 #define AMDGPU_RESET_VCE1			(1 << 14)
    134 
    135 /* CG block flags */
    136 #define AMDGPU_CG_BLOCK_GFX			(1 << 0)
    137 #define AMDGPU_CG_BLOCK_MC			(1 << 1)
    138 #define AMDGPU_CG_BLOCK_SDMA			(1 << 2)
    139 #define AMDGPU_CG_BLOCK_UVD			(1 << 3)
    140 #define AMDGPU_CG_BLOCK_VCE			(1 << 4)
    141 #define AMDGPU_CG_BLOCK_HDP			(1 << 5)
    142 #define AMDGPU_CG_BLOCK_BIF			(1 << 6)
    143 
    144 /* CG flags */
    145 #define AMDGPU_CG_SUPPORT_GFX_MGCG		(1 << 0)
    146 #define AMDGPU_CG_SUPPORT_GFX_MGLS		(1 << 1)
    147 #define AMDGPU_CG_SUPPORT_GFX_CGCG		(1 << 2)
    148 #define AMDGPU_CG_SUPPORT_GFX_CGLS		(1 << 3)
    149 #define AMDGPU_CG_SUPPORT_GFX_CGTS		(1 << 4)
    150 #define AMDGPU_CG_SUPPORT_GFX_CGTS_LS		(1 << 5)
    151 #define AMDGPU_CG_SUPPORT_GFX_CP_LS		(1 << 6)
    152 #define AMDGPU_CG_SUPPORT_GFX_RLC_LS		(1 << 7)
    153 #define AMDGPU_CG_SUPPORT_MC_LS			(1 << 8)
    154 #define AMDGPU_CG_SUPPORT_MC_MGCG		(1 << 9)
    155 #define AMDGPU_CG_SUPPORT_SDMA_LS		(1 << 10)
    156 #define AMDGPU_CG_SUPPORT_SDMA_MGCG		(1 << 11)
    157 #define AMDGPU_CG_SUPPORT_BIF_LS		(1 << 12)
    158 #define AMDGPU_CG_SUPPORT_UVD_MGCG		(1 << 13)
    159 #define AMDGPU_CG_SUPPORT_VCE_MGCG		(1 << 14)
    160 #define AMDGPU_CG_SUPPORT_HDP_LS		(1 << 15)
    161 #define AMDGPU_CG_SUPPORT_HDP_MGCG		(1 << 16)
    162 
    163 /* PG flags */
    164 #define AMDGPU_PG_SUPPORT_GFX_PG		(1 << 0)
    165 #define AMDGPU_PG_SUPPORT_GFX_SMG		(1 << 1)
    166 #define AMDGPU_PG_SUPPORT_GFX_DMG		(1 << 2)
    167 #define AMDGPU_PG_SUPPORT_UVD			(1 << 3)
    168 #define AMDGPU_PG_SUPPORT_VCE			(1 << 4)
    169 #define AMDGPU_PG_SUPPORT_CP			(1 << 5)
    170 #define AMDGPU_PG_SUPPORT_GDS			(1 << 6)
    171 #define AMDGPU_PG_SUPPORT_RLC_SMU_HS		(1 << 7)
    172 #define AMDGPU_PG_SUPPORT_SDMA			(1 << 8)
    173 #define AMDGPU_PG_SUPPORT_ACP			(1 << 9)
    174 #define AMDGPU_PG_SUPPORT_SAMU			(1 << 10)
    175 
    176 /* GFX current status */
    177 #define AMDGPU_GFX_NORMAL_MODE			0x00000000L
    178 #define AMDGPU_GFX_SAFE_MODE			0x00000001L
    179 #define AMDGPU_GFX_PG_DISABLED_MODE		0x00000002L
    180 #define AMDGPU_GFX_CG_DISABLED_MODE		0x00000004L
    181 #define AMDGPU_GFX_LBPW_DISABLED_MODE		0x00000008L
    182 
    183 /* max cursor sizes (in pixels) */
    184 #define CIK_CURSOR_WIDTH 128
    185 #define CIK_CURSOR_HEIGHT 128
    186 
    187 struct amdgpu_device;
    188 struct amdgpu_fence;
    189 struct amdgpu_ib;
    190 struct amdgpu_vm;
    191 struct amdgpu_ring;
    192 struct amdgpu_semaphore;
    193 struct amdgpu_cs_parser;
    194 struct amdgpu_job;
    195 struct amdgpu_irq_src;
    196 struct amdgpu_fpriv;
    197 
    198 enum amdgpu_cp_irq {
    199 	AMDGPU_CP_IRQ_GFX_EOP = 0,
    200 	AMDGPU_CP_IRQ_COMPUTE_MEC1_PIPE0_EOP,
    201 	AMDGPU_CP_IRQ_COMPUTE_MEC1_PIPE1_EOP,
    202 	AMDGPU_CP_IRQ_COMPUTE_MEC1_PIPE2_EOP,
    203 	AMDGPU_CP_IRQ_COMPUTE_MEC1_PIPE3_EOP,
    204 	AMDGPU_CP_IRQ_COMPUTE_MEC2_PIPE0_EOP,
    205 	AMDGPU_CP_IRQ_COMPUTE_MEC2_PIPE1_EOP,
    206 	AMDGPU_CP_IRQ_COMPUTE_MEC2_PIPE2_EOP,
    207 	AMDGPU_CP_IRQ_COMPUTE_MEC2_PIPE3_EOP,
    208 
    209 	AMDGPU_CP_IRQ_LAST
    210 };
    211 
    212 enum amdgpu_sdma_irq {
    213 	AMDGPU_SDMA_IRQ_TRAP0 = 0,
    214 	AMDGPU_SDMA_IRQ_TRAP1,
    215 
    216 	AMDGPU_SDMA_IRQ_LAST
    217 };
    218 
    219 enum amdgpu_thermal_irq {
    220 	AMDGPU_THERMAL_IRQ_LOW_TO_HIGH = 0,
    221 	AMDGPU_THERMAL_IRQ_HIGH_TO_LOW,
    222 
    223 	AMDGPU_THERMAL_IRQ_LAST
    224 };
    225 
    226 int amdgpu_set_clockgating_state(struct amdgpu_device *adev,
    227 				  enum amd_ip_block_type block_type,
    228 				  enum amd_clockgating_state state);
    229 int amdgpu_set_powergating_state(struct amdgpu_device *adev,
    230 				  enum amd_ip_block_type block_type,
    231 				  enum amd_powergating_state state);
    232 
    233 struct amdgpu_ip_block_version {
    234 	enum amd_ip_block_type type;
    235 	u32 major;
    236 	u32 minor;
    237 	u32 rev;
    238 	const struct amd_ip_funcs *funcs;
    239 };
    240 
    241 int amdgpu_ip_block_version_cmp(struct amdgpu_device *adev,
    242 				enum amd_ip_block_type type,
    243 				u32 major, u32 minor);
    244 
    245 const struct amdgpu_ip_block_version * amdgpu_get_ip_block(
    246 					struct amdgpu_device *adev,
    247 					enum amd_ip_block_type type);
    248 
    249 /* provided by hw blocks that can move/clear data.  e.g., gfx or sdma */
    250 struct amdgpu_buffer_funcs {
    251 	/* maximum bytes in a single operation */
    252 	uint32_t	copy_max_bytes;
    253 
    254 	/* number of dw to reserve per operation */
    255 	unsigned	copy_num_dw;
    256 
    257 	/* used for buffer migration */
    258 	void (*emit_copy_buffer)(struct amdgpu_ib *ib,
    259 				 /* src addr in bytes */
    260 				 uint64_t src_offset,
    261 				 /* dst addr in bytes */
    262 				 uint64_t dst_offset,
    263 				 /* number of byte to transfer */
    264 				 uint32_t byte_count);
    265 
    266 	/* maximum bytes in a single operation */
    267 	uint32_t	fill_max_bytes;
    268 
    269 	/* number of dw to reserve per operation */
    270 	unsigned	fill_num_dw;
    271 
    272 	/* used for buffer clearing */
    273 	void (*emit_fill_buffer)(struct amdgpu_ib *ib,
    274 				 /* value to write to memory */
    275 				 uint32_t src_data,
    276 				 /* dst addr in bytes */
    277 				 uint64_t dst_offset,
    278 				 /* number of byte to fill */
    279 				 uint32_t byte_count);
    280 };
    281 
    282 /* provided by hw blocks that can write ptes, e.g., sdma */
    283 struct amdgpu_vm_pte_funcs {
    284 	/* copy pte entries from GART */
    285 	void (*copy_pte)(struct amdgpu_ib *ib,
    286 			 uint64_t pe, uint64_t src,
    287 			 unsigned count);
    288 	/* write pte one entry at a time with addr mapping */
    289 	void (*write_pte)(struct amdgpu_ib *ib,
    290 			  uint64_t pe,
    291 			  uint64_t addr, unsigned count,
    292 			  uint32_t incr, uint32_t flags);
    293 	/* for linear pte/pde updates without addr mapping */
    294 	void (*set_pte_pde)(struct amdgpu_ib *ib,
    295 			    uint64_t pe,
    296 			    uint64_t addr, unsigned count,
    297 			    uint32_t incr, uint32_t flags);
    298 	/* pad the indirect buffer to the necessary number of dw */
    299 	void (*pad_ib)(struct amdgpu_ib *ib);
    300 };
    301 
    302 /* provided by the gmc block */
    303 struct amdgpu_gart_funcs {
    304 	/* flush the vm tlb via mmio */
    305 	void (*flush_gpu_tlb)(struct amdgpu_device *adev,
    306 			      uint32_t vmid);
    307 	/* write pte/pde updates using the cpu */
    308 	int (*set_pte_pde)(struct amdgpu_device *adev,
    309 			   void *cpu_pt_addr, /* cpu addr of page table */
    310 			   uint32_t gpu_page_idx, /* pte/pde to update */
    311 			   uint64_t addr, /* addr to write into pte/pde */
    312 			   uint32_t flags); /* access flags */
    313 };
    314 
    315 /* provided by the ih block */
    316 struct amdgpu_ih_funcs {
    317 	/* ring read/write ptr handling, called from interrupt context */
    318 	u32 (*get_wptr)(struct amdgpu_device *adev);
    319 	void (*decode_iv)(struct amdgpu_device *adev,
    320 			  struct amdgpu_iv_entry *entry);
    321 	void (*set_rptr)(struct amdgpu_device *adev);
    322 };
    323 
    324 /* provided by hw blocks that expose a ring buffer for commands */
    325 struct amdgpu_ring_funcs {
    326 	/* ring read/write ptr handling */
    327 	u32 (*get_rptr)(struct amdgpu_ring *ring);
    328 	u32 (*get_wptr)(struct amdgpu_ring *ring);
    329 	void (*set_wptr)(struct amdgpu_ring *ring);
    330 	/* validating and patching of IBs */
    331 	int (*parse_cs)(struct amdgpu_cs_parser *p, uint32_t ib_idx);
    332 	/* command emit functions */
    333 	void (*emit_ib)(struct amdgpu_ring *ring,
    334 			struct amdgpu_ib *ib);
    335 	void (*emit_fence)(struct amdgpu_ring *ring, uint64_t addr,
    336 			   uint64_t seq, unsigned flags);
    337 	bool (*emit_semaphore)(struct amdgpu_ring *ring,
    338 			       struct amdgpu_semaphore *semaphore,
    339 			       bool emit_wait);
    340 	void (*emit_vm_flush)(struct amdgpu_ring *ring, unsigned vm_id,
    341 			      uint64_t pd_addr);
    342 	void (*emit_hdp_flush)(struct amdgpu_ring *ring);
    343 	void (*emit_gds_switch)(struct amdgpu_ring *ring, uint32_t vmid,
    344 				uint32_t gds_base, uint32_t gds_size,
    345 				uint32_t gws_base, uint32_t gws_size,
    346 				uint32_t oa_base, uint32_t oa_size);
    347 	/* testing functions */
    348 	int (*test_ring)(struct amdgpu_ring *ring);
    349 	int (*test_ib)(struct amdgpu_ring *ring);
    350 	/* insert NOP packets */
    351 	void (*insert_nop)(struct amdgpu_ring *ring, uint32_t count);
    352 };
    353 
    354 /*
    355  * BIOS.
    356  */
    357 bool amdgpu_get_bios(struct amdgpu_device *adev);
    358 bool amdgpu_read_bios(struct amdgpu_device *adev);
    359 
    360 /*
    361  * Dummy page
    362  */
    363 struct amdgpu_dummy_page {
    364 	struct page	*page;
    365 	dma_addr_t	addr;
    366 };
    367 int amdgpu_dummy_page_init(struct amdgpu_device *adev);
    368 void amdgpu_dummy_page_fini(struct amdgpu_device *adev);
    369 
    370 
    371 /*
    372  * Clocks
    373  */
    374 
    375 #define AMDGPU_MAX_PPLL 3
    376 
    377 struct amdgpu_clock {
    378 	struct amdgpu_pll ppll[AMDGPU_MAX_PPLL];
    379 	struct amdgpu_pll spll;
    380 	struct amdgpu_pll mpll;
    381 	/* 10 Khz units */
    382 	uint32_t default_mclk;
    383 	uint32_t default_sclk;
    384 	uint32_t default_dispclk;
    385 	uint32_t current_dispclk;
    386 	uint32_t dp_extclk;
    387 	uint32_t max_pixel_clock;
    388 };
    389 
    390 /*
    391  * Fences.
    392  */
    393 struct amdgpu_fence_driver {
    394 	uint64_t			gpu_addr;
    395 	volatile uint32_t		*cpu_addr;
    396 	/* sync_seq is protected by ring emission lock */
    397 	uint64_t			sync_seq[AMDGPU_MAX_RINGS];
    398 	atomic64_t			last_seq;
    399 	bool				initialized;
    400 	struct amdgpu_irq_src		*irq_src;
    401 	unsigned			irq_type;
    402 	struct timer_list		fallback_timer;
    403 	wait_queue_head_t		fence_queue;
    404 };
    405 
    406 /* some special values for the owner field */
    407 #define AMDGPU_FENCE_OWNER_UNDEFINED	((void*)0ul)
    408 #define AMDGPU_FENCE_OWNER_VM		((void*)1ul)
    409 
    410 #define AMDGPU_FENCE_FLAG_64BIT         (1 << 0)
    411 #define AMDGPU_FENCE_FLAG_INT           (1 << 1)
    412 
    413 struct amdgpu_fence {
    414 	struct fence base;
    415 
    416 	/* RB, DMA, etc. */
    417 	struct amdgpu_ring		*ring;
    418 	uint64_t			seq;
    419 
    420 	/* filp or special value for fence creator */
    421 	void				*owner;
    422 
    423 	wait_queue_t			fence_wake;
    424 };
    425 
    426 struct amdgpu_user_fence {
    427 	/* write-back bo */
    428 	struct amdgpu_bo 	*bo;
    429 	/* write-back address offset to bo start */
    430 	uint32_t                offset;
    431 };
    432 
    433 int amdgpu_fence_driver_init(struct amdgpu_device *adev);
    434 void amdgpu_fence_driver_fini(struct amdgpu_device *adev);
    435 void amdgpu_fence_driver_force_completion(struct amdgpu_device *adev);
    436 
    437 int amdgpu_fence_driver_init_ring(struct amdgpu_ring *ring);
    438 int amdgpu_fence_driver_start_ring(struct amdgpu_ring *ring,
    439 				   struct amdgpu_irq_src *irq_src,
    440 				   unsigned irq_type);
    441 void amdgpu_fence_driver_suspend(struct amdgpu_device *adev);
    442 void amdgpu_fence_driver_resume(struct amdgpu_device *adev);
    443 int amdgpu_fence_emit(struct amdgpu_ring *ring, void *owner,
    444 		      struct amdgpu_fence **fence);
    445 void amdgpu_fence_process(struct amdgpu_ring *ring);
    446 int amdgpu_fence_wait_next(struct amdgpu_ring *ring);
    447 int amdgpu_fence_wait_empty(struct amdgpu_ring *ring);
    448 unsigned amdgpu_fence_count_emitted(struct amdgpu_ring *ring);
    449 
    450 bool amdgpu_fence_need_sync(struct amdgpu_fence *fence,
    451 			    struct amdgpu_ring *ring);
    452 void amdgpu_fence_note_sync(struct amdgpu_fence *fence,
    453 			    struct amdgpu_ring *ring);
    454 
    455 /*
    456  * TTM.
    457  */
    458 struct amdgpu_mman {
    459 	struct ttm_bo_global_ref        bo_global_ref;
    460 	struct drm_global_reference	mem_global_ref;
    461 	struct ttm_bo_device		bdev;
    462 	bool				mem_global_referenced;
    463 	bool				initialized;
    464 
    465 #if defined(CONFIG_DEBUG_FS)
    466 	struct dentry			*vram;
    467 	struct dentry			*gtt;
    468 #endif
    469 
    470 	/* buffer handling */
    471 	const struct amdgpu_buffer_funcs	*buffer_funcs;
    472 	struct amdgpu_ring			*buffer_funcs_ring;
    473 };
    474 
    475 int amdgpu_copy_buffer(struct amdgpu_ring *ring,
    476 		       uint64_t src_offset,
    477 		       uint64_t dst_offset,
    478 		       uint32_t byte_count,
    479 		       struct reservation_object *resv,
    480 		       struct fence **fence);
    481 int amdgpu_mmap(struct file *filp, struct vm_area_struct *vma);
    482 
    483 struct amdgpu_bo_list_entry {
    484 	struct amdgpu_bo		*robj;
    485 	struct ttm_validate_buffer	tv;
    486 	struct amdgpu_bo_va		*bo_va;
    487 	unsigned			prefered_domains;
    488 	unsigned			allowed_domains;
    489 	uint32_t			priority;
    490 };
    491 
    492 struct amdgpu_bo_va_mapping {
    493 	struct list_head		list;
    494 	struct interval_tree_node	it;
    495 	uint64_t			offset;
    496 	uint32_t			flags;
    497 };
    498 
    499 /* bo virtual addresses in a specific vm */
    500 struct amdgpu_bo_va {
    501 	struct mutex		        mutex;
    502 	/* protected by bo being reserved */
    503 	struct list_head		bo_list;
    504 	struct fence		        *last_pt_update;
    505 	unsigned			ref_count;
    506 
    507 	/* protected by vm mutex and spinlock */
    508 	struct list_head		vm_status;
    509 
    510 	/* mappings for this bo_va */
    511 	struct list_head		invalids;
    512 	struct list_head		valids;
    513 
    514 	/* constant after initialization */
    515 	struct amdgpu_vm		*vm;
    516 	struct amdgpu_bo		*bo;
    517 };
    518 
    519 #define AMDGPU_GEM_DOMAIN_MAX		0x3
    520 
    521 struct amdgpu_bo {
    522 	/* Protected by gem.mutex */
    523 	struct list_head		list;
    524 	/* Protected by tbo.reserved */
    525 	u32				initial_domain;
    526 	struct ttm_place		placements[AMDGPU_GEM_DOMAIN_MAX + 1];
    527 	struct ttm_placement		placement;
    528 	struct ttm_buffer_object	tbo;
    529 	struct ttm_bo_kmap_obj		kmap;
    530 	u64				flags;
    531 	unsigned			pin_count;
    532 	void				*kptr;
    533 	u64				tiling_flags;
    534 	u64				metadata_flags;
    535 	void				*metadata;
    536 	u32				metadata_size;
    537 	unsigned			prime_shared_count;
    538 	/* list of all virtual address to which this bo
    539 	 * is associated to
    540 	 */
    541 	struct list_head		va;
    542 	/* Constant after initialization */
    543 	struct amdgpu_device		*adev;
    544 	struct drm_gem_object		gem_base;
    545 	struct amdgpu_bo		*parent;
    546 
    547 	struct ttm_bo_kmap_obj		dma_buf_vmap;
    548 	pid_t				pid;
    549 	struct amdgpu_mn		*mn;
    550 	struct list_head		mn_list;
    551 };
    552 #define gem_to_amdgpu_bo(gobj) container_of((gobj), struct amdgpu_bo, gem_base)
    553 
    554 void amdgpu_gem_object_free(struct drm_gem_object *obj);
    555 int amdgpu_gem_object_open(struct drm_gem_object *obj,
    556 				struct drm_file *file_priv);
    557 void amdgpu_gem_object_close(struct drm_gem_object *obj,
    558 				struct drm_file *file_priv);
    559 unsigned long amdgpu_gem_timeout(uint64_t timeout_ns);
    560 struct sg_table *amdgpu_gem_prime_get_sg_table(struct drm_gem_object *obj);
    561 struct drm_gem_object *amdgpu_gem_prime_import_sg_table(struct drm_device *dev,
    562 							struct dma_buf_attachment *attach,
    563 							struct sg_table *sg);
    564 struct dma_buf *amdgpu_gem_prime_export(struct drm_device *dev,
    565 					struct drm_gem_object *gobj,
    566 					int flags);
    567 int amdgpu_gem_prime_pin(struct drm_gem_object *obj);
    568 void amdgpu_gem_prime_unpin(struct drm_gem_object *obj);
    569 struct reservation_object *amdgpu_gem_prime_res_obj(struct drm_gem_object *);
    570 void *amdgpu_gem_prime_vmap(struct drm_gem_object *obj);
    571 void amdgpu_gem_prime_vunmap(struct drm_gem_object *obj, void *vaddr);
    572 int amdgpu_gem_debugfs_init(struct amdgpu_device *adev);
    573 
    574 /* sub-allocation manager, it has to be protected by another lock.
    575  * By conception this is an helper for other part of the driver
    576  * like the indirect buffer or semaphore, which both have their
    577  * locking.
    578  *
    579  * Principe is simple, we keep a list of sub allocation in offset
    580  * order (first entry has offset == 0, last entry has the highest
    581  * offset).
    582  *
    583  * When allocating new object we first check if there is room at
    584  * the end total_size - (last_object_offset + last_object_size) >=
    585  * alloc_size. If so we allocate new object there.
    586  *
    587  * When there is not enough room at the end, we start waiting for
    588  * each sub object until we reach object_offset+object_size >=
    589  * alloc_size, this object then become the sub object we return.
    590  *
    591  * Alignment can't be bigger than page size.
    592  *
    593  * Hole are not considered for allocation to keep things simple.
    594  * Assumption is that there won't be hole (all object on same
    595  * alignment).
    596  */
    597 struct amdgpu_sa_manager {
    598 	wait_queue_head_t	wq;
    599 	struct amdgpu_bo	*bo;
    600 	struct list_head	*hole;
    601 	struct list_head	flist[AMDGPU_MAX_RINGS];
    602 	struct list_head	olist;
    603 	unsigned		size;
    604 	uint64_t		gpu_addr;
    605 	void			*cpu_ptr;
    606 	uint32_t		domain;
    607 	uint32_t		align;
    608 };
    609 
    610 /* sub-allocation buffer */
    611 struct amdgpu_sa_bo {
    612 	struct list_head		olist;
    613 	struct list_head		flist;
    614 	struct amdgpu_sa_manager	*manager;
    615 	unsigned			soffset;
    616 	unsigned			eoffset;
    617 	struct fence		        *fence;
    618 };
    619 
    620 /*
    621  * GEM objects.
    622  */
    623 struct amdgpu_gem {
    624 	struct mutex		mutex;
    625 	struct list_head	objects;
    626 };
    627 
    628 int amdgpu_gem_init(struct amdgpu_device *adev);
    629 void amdgpu_gem_fini(struct amdgpu_device *adev);
    630 int amdgpu_gem_object_create(struct amdgpu_device *adev, unsigned long size,
    631 				int alignment, u32 initial_domain,
    632 				u64 flags, bool kernel,
    633 				struct drm_gem_object **obj);
    634 
    635 int amdgpu_mode_dumb_create(struct drm_file *file_priv,
    636 			    struct drm_device *dev,
    637 			    struct drm_mode_create_dumb *args);
    638 int amdgpu_mode_dumb_mmap(struct drm_file *filp,
    639 			  struct drm_device *dev,
    640 			  uint32_t handle, uint64_t *offset_p);
    641 
    642 /*
    643  * Semaphores.
    644  */
    645 struct amdgpu_semaphore {
    646 	struct amdgpu_sa_bo	*sa_bo;
    647 	signed			waiters;
    648 	uint64_t		gpu_addr;
    649 };
    650 
    651 int amdgpu_semaphore_create(struct amdgpu_device *adev,
    652 			    struct amdgpu_semaphore **semaphore);
    653 bool amdgpu_semaphore_emit_signal(struct amdgpu_ring *ring,
    654 				  struct amdgpu_semaphore *semaphore);
    655 bool amdgpu_semaphore_emit_wait(struct amdgpu_ring *ring,
    656 				struct amdgpu_semaphore *semaphore);
    657 void amdgpu_semaphore_free(struct amdgpu_device *adev,
    658 			   struct amdgpu_semaphore **semaphore,
    659 			   struct fence *fence);
    660 
    661 /*
    662  * Synchronization
    663  */
    664 struct amdgpu_sync {
    665 	struct amdgpu_semaphore *semaphores[AMDGPU_NUM_SYNCS];
    666 	struct fence		*sync_to[AMDGPU_MAX_RINGS];
    667 	DECLARE_HASHTABLE(fences, 4);
    668 	struct fence	        *last_vm_update;
    669 };
    670 
    671 void amdgpu_sync_create(struct amdgpu_sync *sync);
    672 int amdgpu_sync_fence(struct amdgpu_device *adev, struct amdgpu_sync *sync,
    673 		      struct fence *f);
    674 int amdgpu_sync_resv(struct amdgpu_device *adev,
    675 		     struct amdgpu_sync *sync,
    676 		     struct reservation_object *resv,
    677 		     void *owner);
    678 int amdgpu_sync_rings(struct amdgpu_sync *sync,
    679 		      struct amdgpu_ring *ring);
    680 struct fence *amdgpu_sync_get_fence(struct amdgpu_sync *sync);
    681 int amdgpu_sync_wait(struct amdgpu_sync *sync);
    682 void amdgpu_sync_free(struct amdgpu_device *adev, struct amdgpu_sync *sync,
    683 		      struct fence *fence);
    684 
    685 /*
    686  * GART structures, functions & helpers
    687  */
    688 struct amdgpu_mc;
    689 
    690 #define AMDGPU_GPU_PAGE_SIZE 4096
    691 #define AMDGPU_GPU_PAGE_MASK (AMDGPU_GPU_PAGE_SIZE - 1)
    692 #define AMDGPU_GPU_PAGE_SHIFT 12
    693 #define AMDGPU_GPU_PAGE_ALIGN(a) (((a) + AMDGPU_GPU_PAGE_MASK) & ~AMDGPU_GPU_PAGE_MASK)
    694 
    695 struct amdgpu_gart {
    696 	dma_addr_t			table_addr;
    697 	struct amdgpu_bo		*robj;
    698 	void				*ptr;
    699 	unsigned			num_gpu_pages;
    700 	unsigned			num_cpu_pages;
    701 	unsigned			table_size;
    702 	struct page			**pages;
    703 	dma_addr_t			*pages_addr;
    704 	bool				ready;
    705 	const struct amdgpu_gart_funcs *gart_funcs;
    706 };
    707 
    708 int amdgpu_gart_table_ram_alloc(struct amdgpu_device *adev);
    709 void amdgpu_gart_table_ram_free(struct amdgpu_device *adev);
    710 int amdgpu_gart_table_vram_alloc(struct amdgpu_device *adev);
    711 void amdgpu_gart_table_vram_free(struct amdgpu_device *adev);
    712 int amdgpu_gart_table_vram_pin(struct amdgpu_device *adev);
    713 void amdgpu_gart_table_vram_unpin(struct amdgpu_device *adev);
    714 int amdgpu_gart_init(struct amdgpu_device *adev);
    715 void amdgpu_gart_fini(struct amdgpu_device *adev);
    716 void amdgpu_gart_unbind(struct amdgpu_device *adev, uint64_t offset,
    717 			int pages);
    718 int amdgpu_gart_bind(struct amdgpu_device *adev, uint64_t offset,
    719 		     int pages, struct page **pagelist,
    720 		     dma_addr_t *dma_addr, uint32_t flags);
    721 
    722 /*
    723  * GPU MC structures, functions & helpers
    724  */
    725 struct amdgpu_mc {
    726 	resource_size_t		aper_size;
    727 	resource_size_t		aper_base;
    728 	resource_size_t		agp_base;
    729 	/* for some chips with <= 32MB we need to lie
    730 	 * about vram size near mc fb location */
    731 	u64			mc_vram_size;
    732 	u64			visible_vram_size;
    733 	u64			gtt_size;
    734 	u64			gtt_start;
    735 	u64			gtt_end;
    736 	u64			vram_start;
    737 	u64			vram_end;
    738 	unsigned		vram_width;
    739 	u64			real_vram_size;
    740 	int			vram_mtrr;
    741 	u64                     gtt_base_align;
    742 	u64                     mc_mask;
    743 	const struct firmware   *fw;	/* MC firmware */
    744 	uint32_t                fw_version;
    745 	struct amdgpu_irq_src	vm_fault;
    746 	uint32_t		vram_type;
    747 };
    748 
    749 /*
    750  * GPU doorbell structures, functions & helpers
    751  */
    752 typedef enum _AMDGPU_DOORBELL_ASSIGNMENT
    753 {
    754 	AMDGPU_DOORBELL_KIQ                     = 0x000,
    755 	AMDGPU_DOORBELL_HIQ                     = 0x001,
    756 	AMDGPU_DOORBELL_DIQ                     = 0x002,
    757 	AMDGPU_DOORBELL_MEC_RING0               = 0x010,
    758 	AMDGPU_DOORBELL_MEC_RING1               = 0x011,
    759 	AMDGPU_DOORBELL_MEC_RING2               = 0x012,
    760 	AMDGPU_DOORBELL_MEC_RING3               = 0x013,
    761 	AMDGPU_DOORBELL_MEC_RING4               = 0x014,
    762 	AMDGPU_DOORBELL_MEC_RING5               = 0x015,
    763 	AMDGPU_DOORBELL_MEC_RING6               = 0x016,
    764 	AMDGPU_DOORBELL_MEC_RING7               = 0x017,
    765 	AMDGPU_DOORBELL_GFX_RING0               = 0x020,
    766 	AMDGPU_DOORBELL_sDMA_ENGINE0            = 0x1E0,
    767 	AMDGPU_DOORBELL_sDMA_ENGINE1            = 0x1E1,
    768 	AMDGPU_DOORBELL_IH                      = 0x1E8,
    769 	AMDGPU_DOORBELL_MAX_ASSIGNMENT          = 0x3FF,
    770 	AMDGPU_DOORBELL_INVALID                 = 0xFFFF
    771 } AMDGPU_DOORBELL_ASSIGNMENT;
    772 
    773 struct amdgpu_doorbell {
    774 	/* doorbell mmio */
    775 	resource_size_t		base;
    776 	resource_size_t		size;
    777 	u32 __iomem		*ptr;
    778 	u32			num_doorbells;	/* Number of doorbells actually reserved for amdgpu. */
    779 };
    780 
    781 void amdgpu_doorbell_get_kfd_info(struct amdgpu_device *adev,
    782 				phys_addr_t *aperture_base,
    783 				size_t *aperture_size,
    784 				size_t *start_offset);
    785 
    786 /*
    787  * IRQS.
    788  */
    789 
    790 struct amdgpu_flip_work {
    791 	struct work_struct		flip_work;
    792 	struct work_struct		unpin_work;
    793 	struct amdgpu_device		*adev;
    794 	int				crtc_id;
    795 	uint64_t			base;
    796 	struct drm_pending_vblank_event *event;
    797 	struct amdgpu_bo		*old_rbo;
    798 	struct fence			*excl;
    799 	unsigned			shared_count;
    800 	struct fence			**shared;
    801 };
    802 
    803 
    804 /*
    805  * CP & rings.
    806  */
    807 
    808 struct amdgpu_ib {
    809 	struct amdgpu_sa_bo		*sa_bo;
    810 	uint32_t			length_dw;
    811 	uint64_t			gpu_addr;
    812 	uint32_t			*ptr;
    813 	struct amdgpu_ring		*ring;
    814 	struct amdgpu_fence		*fence;
    815 	struct amdgpu_user_fence        *user;
    816 	struct amdgpu_vm		*vm;
    817 	struct amdgpu_ctx		*ctx;
    818 	struct amdgpu_sync		sync;
    819 	uint32_t			gds_base, gds_size;
    820 	uint32_t			gws_base, gws_size;
    821 	uint32_t			oa_base, oa_size;
    822 	uint32_t			flags;
    823 	/* resulting sequence number */
    824 	uint64_t			sequence;
    825 };
    826 
    827 enum amdgpu_ring_type {
    828 	AMDGPU_RING_TYPE_GFX,
    829 	AMDGPU_RING_TYPE_COMPUTE,
    830 	AMDGPU_RING_TYPE_SDMA,
    831 	AMDGPU_RING_TYPE_UVD,
    832 	AMDGPU_RING_TYPE_VCE
    833 };
    834 
    835 extern struct amd_sched_backend_ops amdgpu_sched_ops;
    836 
    837 int amdgpu_sched_ib_submit_kernel_helper(struct amdgpu_device *adev,
    838 					 struct amdgpu_ring *ring,
    839 					 struct amdgpu_ib *ibs,
    840 					 unsigned num_ibs,
    841 					 int (*free_job)(struct amdgpu_job *),
    842 					 void *owner,
    843 					 struct fence **fence);
    844 
    845 struct amdgpu_ring {
    846 	struct amdgpu_device		*adev;
    847 	const struct amdgpu_ring_funcs	*funcs;
    848 	struct amdgpu_fence_driver	fence_drv;
    849 	struct amd_gpu_scheduler 	sched;
    850 
    851 	spinlock_t              fence_lock;
    852 	struct mutex		*ring_lock;
    853 	struct amdgpu_bo	*ring_obj;
    854 	volatile uint32_t	*ring;
    855 	unsigned		rptr_offs;
    856 	u64			next_rptr_gpu_addr;
    857 	volatile u32		*next_rptr_cpu_addr;
    858 	unsigned		wptr;
    859 	unsigned		wptr_old;
    860 	unsigned		ring_size;
    861 	unsigned		ring_free_dw;
    862 	int			count_dw;
    863 	uint64_t		gpu_addr;
    864 	uint32_t		align_mask;
    865 	uint32_t		ptr_mask;
    866 	bool			ready;
    867 	u32			nop;
    868 	u32			idx;
    869 	u64			last_semaphore_signal_addr;
    870 	u64			last_semaphore_wait_addr;
    871 	u32			me;
    872 	u32			pipe;
    873 	u32			queue;
    874 	struct amdgpu_bo	*mqd_obj;
    875 	u32			doorbell_index;
    876 	bool			use_doorbell;
    877 	unsigned		wptr_offs;
    878 	unsigned		next_rptr_offs;
    879 	unsigned		fence_offs;
    880 	struct amdgpu_ctx	*current_ctx;
    881 	enum amdgpu_ring_type	type;
    882 	char			name[16];
    883 	bool                    is_pte_ring;
    884 };
    885 
    886 /*
    887  * VM
    888  */
    889 
    890 /* maximum number of VMIDs */
    891 #define AMDGPU_NUM_VM	16
    892 
    893 /* number of entries in page table */
    894 #define AMDGPU_VM_PTE_COUNT (1 << amdgpu_vm_block_size)
    895 
    896 /* PTBs (Page Table Blocks) need to be aligned to 32K */
    897 #define AMDGPU_VM_PTB_ALIGN_SIZE   32768
    898 #define AMDGPU_VM_PTB_ALIGN_MASK (AMDGPU_VM_PTB_ALIGN_SIZE - 1)
    899 #define AMDGPU_VM_PTB_ALIGN(a) (((a) + AMDGPU_VM_PTB_ALIGN_MASK) & ~AMDGPU_VM_PTB_ALIGN_MASK)
    900 
    901 #define AMDGPU_PTE_VALID	(1 << 0)
    902 #define AMDGPU_PTE_SYSTEM	(1 << 1)
    903 #define AMDGPU_PTE_SNOOPED	(1 << 2)
    904 
    905 /* VI only */
    906 #define AMDGPU_PTE_EXECUTABLE	(1 << 4)
    907 
    908 #define AMDGPU_PTE_READABLE	(1 << 5)
    909 #define AMDGPU_PTE_WRITEABLE	(1 << 6)
    910 
    911 /* PTE (Page Table Entry) fragment field for different page sizes */
    912 #define AMDGPU_PTE_FRAG_4KB	(0 << 7)
    913 #define AMDGPU_PTE_FRAG_64KB	(4 << 7)
    914 #define AMDGPU_LOG2_PAGES_PER_FRAG 4
    915 
    916 /* How to programm VM fault handling */
    917 #define AMDGPU_VM_FAULT_STOP_NEVER	0
    918 #define AMDGPU_VM_FAULT_STOP_FIRST	1
    919 #define AMDGPU_VM_FAULT_STOP_ALWAYS	2
    920 
    921 struct amdgpu_vm_pt {
    922 	struct amdgpu_bo	*bo;
    923 	uint64_t		addr;
    924 };
    925 
    926 struct amdgpu_vm_id {
    927 	unsigned		id;
    928 	uint64_t		pd_gpu_addr;
    929 	/* last flushed PD/PT update */
    930 	struct fence	        *flushed_updates;
    931 };
    932 
    933 struct amdgpu_vm {
    934 	struct rb_root		va;
    935 
    936 	/* protecting invalidated */
    937 	spinlock_t		status_lock;
    938 
    939 	/* BOs moved, but not yet updated in the PT */
    940 	struct list_head	invalidated;
    941 
    942 	/* BOs cleared in the PT because of a move */
    943 	struct list_head	cleared;
    944 
    945 	/* BO mappings freed, but not yet updated in the PT */
    946 	struct list_head	freed;
    947 
    948 	/* contains the page directory */
    949 	struct amdgpu_bo	*page_directory;
    950 	unsigned		max_pde_used;
    951 	struct fence		*page_directory_fence;
    952 
    953 	/* array of page tables, one for each page directory entry */
    954 	struct amdgpu_vm_pt	*page_tables;
    955 
    956 	/* for id and flush management per ring */
    957 	struct amdgpu_vm_id	ids[AMDGPU_MAX_RINGS];
    958 	/* for interval tree */
    959 	spinlock_t		it_lock;
    960 	/* protecting freed */
    961 	spinlock_t		freed_lock;
    962 };
    963 
    964 struct amdgpu_vm_manager {
    965 	struct {
    966 		struct fence	*active;
    967 		atomic_long_t	owner;
    968 	} ids[AMDGPU_NUM_VM];
    969 
    970 	uint32_t				max_pfn;
    971 	/* number of VMIDs */
    972 	unsigned				nvm;
    973 	/* vram base address for page table entry  */
    974 	u64					vram_base_offset;
    975 	/* is vm enabled? */
    976 	bool					enabled;
    977 	/* vm pte handling */
    978 	const struct amdgpu_vm_pte_funcs        *vm_pte_funcs;
    979 	struct amdgpu_ring                      *vm_pte_funcs_ring;
    980 };
    981 
    982 void amdgpu_vm_manager_fini(struct amdgpu_device *adev);
    983 int amdgpu_vm_init(struct amdgpu_device *adev, struct amdgpu_vm *vm);
    984 void amdgpu_vm_fini(struct amdgpu_device *adev, struct amdgpu_vm *vm);
    985 struct amdgpu_bo_list_entry *amdgpu_vm_get_bos(struct amdgpu_device *adev,
    986 					       struct amdgpu_vm *vm,
    987 					       struct list_head *head);
    988 int amdgpu_vm_grab_id(struct amdgpu_vm *vm, struct amdgpu_ring *ring,
    989 		      struct amdgpu_sync *sync);
    990 void amdgpu_vm_flush(struct amdgpu_ring *ring,
    991 		     struct amdgpu_vm *vm,
    992 		     struct fence *updates);
    993 void amdgpu_vm_fence(struct amdgpu_device *adev,
    994 		     struct amdgpu_vm *vm,
    995 		     struct fence *fence);
    996 uint64_t amdgpu_vm_map_gart(struct amdgpu_device *adev, uint64_t addr);
    997 int amdgpu_vm_update_page_directory(struct amdgpu_device *adev,
    998 				    struct amdgpu_vm *vm);
    999 int amdgpu_vm_clear_freed(struct amdgpu_device *adev,
   1000 			  struct amdgpu_vm *vm);
   1001 int amdgpu_vm_clear_invalids(struct amdgpu_device *adev, struct amdgpu_vm *vm,
   1002 			     struct amdgpu_sync *sync);
   1003 int amdgpu_vm_bo_update(struct amdgpu_device *adev,
   1004 			struct amdgpu_bo_va *bo_va,
   1005 			struct ttm_mem_reg *mem);
   1006 void amdgpu_vm_bo_invalidate(struct amdgpu_device *adev,
   1007 			     struct amdgpu_bo *bo);
   1008 struct amdgpu_bo_va *amdgpu_vm_bo_find(struct amdgpu_vm *vm,
   1009 				       struct amdgpu_bo *bo);
   1010 struct amdgpu_bo_va *amdgpu_vm_bo_add(struct amdgpu_device *adev,
   1011 				      struct amdgpu_vm *vm,
   1012 				      struct amdgpu_bo *bo);
   1013 int amdgpu_vm_bo_map(struct amdgpu_device *adev,
   1014 		     struct amdgpu_bo_va *bo_va,
   1015 		     uint64_t addr, uint64_t offset,
   1016 		     uint64_t size, uint32_t flags);
   1017 int amdgpu_vm_bo_unmap(struct amdgpu_device *adev,
   1018 		       struct amdgpu_bo_va *bo_va,
   1019 		       uint64_t addr);
   1020 void amdgpu_vm_bo_rmv(struct amdgpu_device *adev,
   1021 		      struct amdgpu_bo_va *bo_va);
   1022 int amdgpu_vm_free_job(struct amdgpu_job *job);
   1023 
   1024 /*
   1025  * context related structures
   1026  */
   1027 
   1028 #define AMDGPU_CTX_MAX_CS_PENDING	16
   1029 
   1030 struct amdgpu_ctx_ring {
   1031 	uint64_t		sequence;
   1032 	struct fence		*fences[AMDGPU_CTX_MAX_CS_PENDING];
   1033 	struct amd_sched_entity	entity;
   1034 };
   1035 
   1036 struct amdgpu_ctx {
   1037 	struct kref		refcount;
   1038 	struct amdgpu_device    *adev;
   1039 	unsigned		reset_counter;
   1040 	spinlock_t		ring_lock;
   1041 	struct amdgpu_ctx_ring	rings[AMDGPU_MAX_RINGS];
   1042 };
   1043 
   1044 struct amdgpu_ctx_mgr {
   1045 	struct amdgpu_device	*adev;
   1046 	struct mutex		lock;
   1047 	/* protected by lock */
   1048 	struct idr		ctx_handles;
   1049 };
   1050 
   1051 int amdgpu_ctx_init(struct amdgpu_device *adev, bool kernel,
   1052 		    struct amdgpu_ctx *ctx);
   1053 void amdgpu_ctx_fini(struct amdgpu_ctx *ctx);
   1054 
   1055 struct amdgpu_ctx *amdgpu_ctx_get(struct amdgpu_fpriv *fpriv, uint32_t id);
   1056 int amdgpu_ctx_put(struct amdgpu_ctx *ctx);
   1057 
   1058 uint64_t amdgpu_ctx_add_fence(struct amdgpu_ctx *ctx, struct amdgpu_ring *ring,
   1059 			      struct fence *fence);
   1060 struct fence *amdgpu_ctx_get_fence(struct amdgpu_ctx *ctx,
   1061 				   struct amdgpu_ring *ring, uint64_t seq);
   1062 
   1063 int amdgpu_ctx_ioctl(struct drm_device *dev, void *data,
   1064 		     struct drm_file *filp);
   1065 
   1066 void amdgpu_ctx_mgr_init(struct amdgpu_ctx_mgr *mgr);
   1067 void amdgpu_ctx_mgr_fini(struct amdgpu_ctx_mgr *mgr);
   1068 
   1069 /*
   1070  * file private structure
   1071  */
   1072 
   1073 struct amdgpu_fpriv {
   1074 	struct amdgpu_vm	vm;
   1075 	struct mutex		bo_list_lock;
   1076 	struct idr		bo_list_handles;
   1077 	struct amdgpu_ctx_mgr	ctx_mgr;
   1078 };
   1079 
   1080 /*
   1081  * residency list
   1082  */
   1083 
   1084 struct amdgpu_bo_list {
   1085 	struct mutex lock;
   1086 	struct amdgpu_bo *gds_obj;
   1087 	struct amdgpu_bo *gws_obj;
   1088 	struct amdgpu_bo *oa_obj;
   1089 	bool has_userptr;
   1090 	unsigned num_entries;
   1091 	struct amdgpu_bo_list_entry *array;
   1092 };
   1093 
   1094 struct amdgpu_bo_list *
   1095 amdgpu_bo_list_get(struct amdgpu_fpriv *fpriv, int id);
   1096 void amdgpu_bo_list_put(struct amdgpu_bo_list *list);
   1097 void amdgpu_bo_list_free(struct amdgpu_bo_list *list);
   1098 
   1099 /*
   1100  * GFX stuff
   1101  */
   1102 #include "clearstate_defs.h"
   1103 
   1104 struct amdgpu_rlc {
   1105 	/* for power gating */
   1106 	struct amdgpu_bo	*save_restore_obj;
   1107 	uint64_t		save_restore_gpu_addr;
   1108 	volatile uint32_t	*sr_ptr;
   1109 	const u32               *reg_list;
   1110 	u32                     reg_list_size;
   1111 	/* for clear state */
   1112 	struct amdgpu_bo	*clear_state_obj;
   1113 	uint64_t		clear_state_gpu_addr;
   1114 	volatile uint32_t	*cs_ptr;
   1115 	const struct cs_section_def   *cs_data;
   1116 	u32                     clear_state_size;
   1117 	/* for cp tables */
   1118 	struct amdgpu_bo	*cp_table_obj;
   1119 	uint64_t		cp_table_gpu_addr;
   1120 	volatile uint32_t	*cp_table_ptr;
   1121 	u32                     cp_table_size;
   1122 };
   1123 
   1124 struct amdgpu_mec {
   1125 	struct amdgpu_bo	*hpd_eop_obj;
   1126 	u64			hpd_eop_gpu_addr;
   1127 	u32 num_pipe;
   1128 	u32 num_mec;
   1129 	u32 num_queue;
   1130 };
   1131 
   1132 /*
   1133  * GPU scratch registers structures, functions & helpers
   1134  */
   1135 struct amdgpu_scratch {
   1136 	unsigned		num_reg;
   1137 	uint32_t                reg_base;
   1138 	bool			free[32];
   1139 	uint32_t		reg[32];
   1140 };
   1141 
   1142 /*
   1143  * GFX configurations
   1144  */
   1145 struct amdgpu_gca_config {
   1146 	unsigned max_shader_engines;
   1147 	unsigned max_tile_pipes;
   1148 	unsigned max_cu_per_sh;
   1149 	unsigned max_sh_per_se;
   1150 	unsigned max_backends_per_se;
   1151 	unsigned max_texture_channel_caches;
   1152 	unsigned max_gprs;
   1153 	unsigned max_gs_threads;
   1154 	unsigned max_hw_contexts;
   1155 	unsigned sc_prim_fifo_size_frontend;
   1156 	unsigned sc_prim_fifo_size_backend;
   1157 	unsigned sc_hiz_tile_fifo_size;
   1158 	unsigned sc_earlyz_tile_fifo_size;
   1159 
   1160 	unsigned num_tile_pipes;
   1161 	unsigned backend_enable_mask;
   1162 	unsigned mem_max_burst_length_bytes;
   1163 	unsigned mem_row_size_in_kb;
   1164 	unsigned shader_engine_tile_size;
   1165 	unsigned num_gpus;
   1166 	unsigned multi_gpu_tile_size;
   1167 	unsigned mc_arb_ramcfg;
   1168 	unsigned gb_addr_config;
   1169 
   1170 	uint32_t tile_mode_array[32];
   1171 	uint32_t macrotile_mode_array[16];
   1172 };
   1173 
   1174 struct amdgpu_gfx {
   1175 	struct mutex			gpu_clock_mutex;
   1176 	struct amdgpu_gca_config	config;
   1177 	struct amdgpu_rlc		rlc;
   1178 	struct amdgpu_mec		mec;
   1179 	struct amdgpu_scratch		scratch;
   1180 	const struct firmware		*me_fw;	/* ME firmware */
   1181 	uint32_t			me_fw_version;
   1182 	const struct firmware		*pfp_fw; /* PFP firmware */
   1183 	uint32_t			pfp_fw_version;
   1184 	const struct firmware		*ce_fw;	/* CE firmware */
   1185 	uint32_t			ce_fw_version;
   1186 	const struct firmware		*rlc_fw; /* RLC firmware */
   1187 	uint32_t			rlc_fw_version;
   1188 	const struct firmware		*mec_fw; /* MEC firmware */
   1189 	uint32_t			mec_fw_version;
   1190 	const struct firmware		*mec2_fw; /* MEC2 firmware */
   1191 	uint32_t			mec2_fw_version;
   1192 	uint32_t			me_feature_version;
   1193 	uint32_t			ce_feature_version;
   1194 	uint32_t			pfp_feature_version;
   1195 	uint32_t			rlc_feature_version;
   1196 	uint32_t			mec_feature_version;
   1197 	uint32_t			mec2_feature_version;
   1198 	struct amdgpu_ring		gfx_ring[AMDGPU_MAX_GFX_RINGS];
   1199 	unsigned			num_gfx_rings;
   1200 	struct amdgpu_ring		compute_ring[AMDGPU_MAX_COMPUTE_RINGS];
   1201 	unsigned			num_compute_rings;
   1202 	struct amdgpu_irq_src		eop_irq;
   1203 	struct amdgpu_irq_src		priv_reg_irq;
   1204 	struct amdgpu_irq_src		priv_inst_irq;
   1205 	/* gfx status */
   1206 	uint32_t gfx_current_status;
   1207 	/* ce ram size*/
   1208 	unsigned ce_ram_size;
   1209 };
   1210 
   1211 int amdgpu_ib_get(struct amdgpu_ring *ring, struct amdgpu_vm *vm,
   1212 		  unsigned size, struct amdgpu_ib *ib);
   1213 void amdgpu_ib_free(struct amdgpu_device *adev, struct amdgpu_ib *ib);
   1214 int amdgpu_ib_schedule(struct amdgpu_device *adev, unsigned num_ibs,
   1215 		       struct amdgpu_ib *ib, void *owner);
   1216 int amdgpu_ib_pool_init(struct amdgpu_device *adev);
   1217 void amdgpu_ib_pool_fini(struct amdgpu_device *adev);
   1218 int amdgpu_ib_ring_tests(struct amdgpu_device *adev);
   1219 /* Ring access between begin & end cannot sleep */
   1220 void amdgpu_ring_free_size(struct amdgpu_ring *ring);
   1221 int amdgpu_ring_alloc(struct amdgpu_ring *ring, unsigned ndw);
   1222 int amdgpu_ring_lock(struct amdgpu_ring *ring, unsigned ndw);
   1223 void amdgpu_ring_insert_nop(struct amdgpu_ring *ring, uint32_t count);
   1224 void amdgpu_ring_commit(struct amdgpu_ring *ring);
   1225 void amdgpu_ring_unlock_commit(struct amdgpu_ring *ring);
   1226 void amdgpu_ring_undo(struct amdgpu_ring *ring);
   1227 void amdgpu_ring_unlock_undo(struct amdgpu_ring *ring);
   1228 unsigned amdgpu_ring_backup(struct amdgpu_ring *ring,
   1229 			    uint32_t **data);
   1230 int amdgpu_ring_restore(struct amdgpu_ring *ring,
   1231 			unsigned size, uint32_t *data);
   1232 int amdgpu_ring_init(struct amdgpu_device *adev, struct amdgpu_ring *ring,
   1233 		     unsigned ring_size, u32 nop, u32 align_mask,
   1234 		     struct amdgpu_irq_src *irq_src, unsigned irq_type,
   1235 		     enum amdgpu_ring_type ring_type);
   1236 void amdgpu_ring_fini(struct amdgpu_ring *ring);
   1237 struct amdgpu_ring *amdgpu_ring_from_fence(struct fence *f);
   1238 
   1239 /*
   1240  * CS.
   1241  */
   1242 struct amdgpu_cs_chunk {
   1243 	uint32_t		chunk_id;
   1244 	uint32_t		length_dw;
   1245 	uint32_t		*kdata;
   1246 	void __user		*user_ptr;
   1247 };
   1248 
   1249 struct amdgpu_cs_parser {
   1250 	struct amdgpu_device	*adev;
   1251 	struct drm_file		*filp;
   1252 	struct amdgpu_ctx	*ctx;
   1253 	struct amdgpu_bo_list *bo_list;
   1254 	/* chunks */
   1255 	unsigned		nchunks;
   1256 	struct amdgpu_cs_chunk	*chunks;
   1257 	/* relocations */
   1258 	struct amdgpu_bo_list_entry	*vm_bos;
   1259 	struct list_head	validated;
   1260 	struct fence		*fence;
   1261 
   1262 	struct amdgpu_ib	*ibs;
   1263 	uint32_t		num_ibs;
   1264 
   1265 	struct ww_acquire_ctx	ticket;
   1266 
   1267 	/* user fence */
   1268 	struct amdgpu_user_fence	uf;
   1269 	struct amdgpu_bo_list_entry	uf_entry;
   1270 };
   1271 
   1272 struct amdgpu_job {
   1273 	struct amd_sched_job    base;
   1274 	struct amdgpu_device	*adev;
   1275 	struct amdgpu_ib	*ibs;
   1276 	uint32_t		num_ibs;
   1277 	void			*owner;
   1278 	struct amdgpu_user_fence uf;
   1279 	int (*free_job)(struct amdgpu_job *job);
   1280 };
   1281 #define to_amdgpu_job(sched_job)		\
   1282 		container_of((sched_job), struct amdgpu_job, base)
   1283 
   1284 static inline u32 amdgpu_get_ib_value(struct amdgpu_cs_parser *p, uint32_t ib_idx, int idx)
   1285 {
   1286 	return p->ibs[ib_idx].ptr[idx];
   1287 }
   1288 
   1289 /*
   1290  * Writeback
   1291  */
   1292 #define AMDGPU_MAX_WB 1024	/* Reserve at most 1024 WB slots for amdgpu-owned rings. */
   1293 
   1294 struct amdgpu_wb {
   1295 	struct amdgpu_bo	*wb_obj;
   1296 	volatile uint32_t	*wb;
   1297 	uint64_t		gpu_addr;
   1298 	u32			num_wb;	/* Number of wb slots actually reserved for amdgpu. */
   1299 	unsigned long		used[DIV_ROUND_UP(AMDGPU_MAX_WB, BITS_PER_LONG)];
   1300 };
   1301 
   1302 int amdgpu_wb_get(struct amdgpu_device *adev, u32 *wb);
   1303 void amdgpu_wb_free(struct amdgpu_device *adev, u32 wb);
   1304 
   1305 /**
   1306  * struct amdgpu_pm - power management datas
   1307  * It keeps track of various data needed to take powermanagement decision.
   1308  */
   1309 
   1310 enum amdgpu_pm_state_type {
   1311 	/* not used for dpm */
   1312 	POWER_STATE_TYPE_DEFAULT,
   1313 	POWER_STATE_TYPE_POWERSAVE,
   1314 	/* user selectable states */
   1315 	POWER_STATE_TYPE_BATTERY,
   1316 	POWER_STATE_TYPE_BALANCED,
   1317 	POWER_STATE_TYPE_PERFORMANCE,
   1318 	/* internal states */
   1319 	POWER_STATE_TYPE_INTERNAL_UVD,
   1320 	POWER_STATE_TYPE_INTERNAL_UVD_SD,
   1321 	POWER_STATE_TYPE_INTERNAL_UVD_HD,
   1322 	POWER_STATE_TYPE_INTERNAL_UVD_HD2,
   1323 	POWER_STATE_TYPE_INTERNAL_UVD_MVC,
   1324 	POWER_STATE_TYPE_INTERNAL_BOOT,
   1325 	POWER_STATE_TYPE_INTERNAL_THERMAL,
   1326 	POWER_STATE_TYPE_INTERNAL_ACPI,
   1327 	POWER_STATE_TYPE_INTERNAL_ULV,
   1328 	POWER_STATE_TYPE_INTERNAL_3DPERF,
   1329 };
   1330 
   1331 enum amdgpu_int_thermal_type {
   1332 	THERMAL_TYPE_NONE,
   1333 	THERMAL_TYPE_EXTERNAL,
   1334 	THERMAL_TYPE_EXTERNAL_GPIO,
   1335 	THERMAL_TYPE_RV6XX,
   1336 	THERMAL_TYPE_RV770,
   1337 	THERMAL_TYPE_ADT7473_WITH_INTERNAL,
   1338 	THERMAL_TYPE_EVERGREEN,
   1339 	THERMAL_TYPE_SUMO,
   1340 	THERMAL_TYPE_NI,
   1341 	THERMAL_TYPE_SI,
   1342 	THERMAL_TYPE_EMC2103_WITH_INTERNAL,
   1343 	THERMAL_TYPE_CI,
   1344 	THERMAL_TYPE_KV,
   1345 };
   1346 
   1347 enum amdgpu_dpm_auto_throttle_src {
   1348 	AMDGPU_DPM_AUTO_THROTTLE_SRC_THERMAL,
   1349 	AMDGPU_DPM_AUTO_THROTTLE_SRC_EXTERNAL
   1350 };
   1351 
   1352 enum amdgpu_dpm_event_src {
   1353 	AMDGPU_DPM_EVENT_SRC_ANALOG = 0,
   1354 	AMDGPU_DPM_EVENT_SRC_EXTERNAL = 1,
   1355 	AMDGPU_DPM_EVENT_SRC_DIGITAL = 2,
   1356 	AMDGPU_DPM_EVENT_SRC_ANALOG_OR_EXTERNAL = 3,
   1357 	AMDGPU_DPM_EVENT_SRC_DIGIAL_OR_EXTERNAL = 4
   1358 };
   1359 
   1360 #define AMDGPU_MAX_VCE_LEVELS 6
   1361 
   1362 enum amdgpu_vce_level {
   1363 	AMDGPU_VCE_LEVEL_AC_ALL = 0,     /* AC, All cases */
   1364 	AMDGPU_VCE_LEVEL_DC_EE = 1,      /* DC, entropy encoding */
   1365 	AMDGPU_VCE_LEVEL_DC_LL_LOW = 2,  /* DC, low latency queue, res <= 720 */
   1366 	AMDGPU_VCE_LEVEL_DC_LL_HIGH = 3, /* DC, low latency queue, 1080 >= res > 720 */
   1367 	AMDGPU_VCE_LEVEL_DC_GP_LOW = 4,  /* DC, general purpose queue, res <= 720 */
   1368 	AMDGPU_VCE_LEVEL_DC_GP_HIGH = 5, /* DC, general purpose queue, 1080 >= res > 720 */
   1369 };
   1370 
   1371 struct amdgpu_ps {
   1372 	u32 caps; /* vbios flags */
   1373 	u32 class; /* vbios flags */
   1374 	u32 class2; /* vbios flags */
   1375 	/* UVD clocks */
   1376 	u32 vclk;
   1377 	u32 dclk;
   1378 	/* VCE clocks */
   1379 	u32 evclk;
   1380 	u32 ecclk;
   1381 	bool vce_active;
   1382 	enum amdgpu_vce_level vce_level;
   1383 	/* asic priv */
   1384 	void *ps_priv;
   1385 };
   1386 
   1387 struct amdgpu_dpm_thermal {
   1388 	/* thermal interrupt work */
   1389 	struct work_struct work;
   1390 	/* low temperature threshold */
   1391 	int                min_temp;
   1392 	/* high temperature threshold */
   1393 	int                max_temp;
   1394 	/* was last interrupt low to high or high to low */
   1395 	bool               high_to_low;
   1396 	/* interrupt source */
   1397 	struct amdgpu_irq_src	irq;
   1398 };
   1399 
   1400 enum amdgpu_clk_action
   1401 {
   1402 	AMDGPU_SCLK_UP = 1,
   1403 	AMDGPU_SCLK_DOWN
   1404 };
   1405 
   1406 struct amdgpu_blacklist_clocks
   1407 {
   1408 	u32 sclk;
   1409 	u32 mclk;
   1410 	enum amdgpu_clk_action action;
   1411 };
   1412 
   1413 struct amdgpu_clock_and_voltage_limits {
   1414 	u32 sclk;
   1415 	u32 mclk;
   1416 	u16 vddc;
   1417 	u16 vddci;
   1418 };
   1419 
   1420 struct amdgpu_clock_array {
   1421 	u32 count;
   1422 	u32 *values;
   1423 };
   1424 
   1425 struct amdgpu_clock_voltage_dependency_entry {
   1426 	u32 clk;
   1427 	u16 v;
   1428 };
   1429 
   1430 struct amdgpu_clock_voltage_dependency_table {
   1431 	u32 count;
   1432 	struct amdgpu_clock_voltage_dependency_entry *entries;
   1433 };
   1434 
   1435 union amdgpu_cac_leakage_entry {
   1436 	struct {
   1437 		u16 vddc;
   1438 		u32 leakage;
   1439 	};
   1440 	struct {
   1441 		u16 vddc1;
   1442 		u16 vddc2;
   1443 		u16 vddc3;
   1444 	};
   1445 };
   1446 
   1447 struct amdgpu_cac_leakage_table {
   1448 	u32 count;
   1449 	union amdgpu_cac_leakage_entry *entries;
   1450 };
   1451 
   1452 struct amdgpu_phase_shedding_limits_entry {
   1453 	u16 voltage;
   1454 	u32 sclk;
   1455 	u32 mclk;
   1456 };
   1457 
   1458 struct amdgpu_phase_shedding_limits_table {
   1459 	u32 count;
   1460 	struct amdgpu_phase_shedding_limits_entry *entries;
   1461 };
   1462 
   1463 struct amdgpu_uvd_clock_voltage_dependency_entry {
   1464 	u32 vclk;
   1465 	u32 dclk;
   1466 	u16 v;
   1467 };
   1468 
   1469 struct amdgpu_uvd_clock_voltage_dependency_table {
   1470 	u8 count;
   1471 	struct amdgpu_uvd_clock_voltage_dependency_entry *entries;
   1472 };
   1473 
   1474 struct amdgpu_vce_clock_voltage_dependency_entry {
   1475 	u32 ecclk;
   1476 	u32 evclk;
   1477 	u16 v;
   1478 };
   1479 
   1480 struct amdgpu_vce_clock_voltage_dependency_table {
   1481 	u8 count;
   1482 	struct amdgpu_vce_clock_voltage_dependency_entry *entries;
   1483 };
   1484 
   1485 struct amdgpu_ppm_table {
   1486 	u8 ppm_design;
   1487 	u16 cpu_core_number;
   1488 	u32 platform_tdp;
   1489 	u32 small_ac_platform_tdp;
   1490 	u32 platform_tdc;
   1491 	u32 small_ac_platform_tdc;
   1492 	u32 apu_tdp;
   1493 	u32 dgpu_tdp;
   1494 	u32 dgpu_ulv_power;
   1495 	u32 tj_max;
   1496 };
   1497 
   1498 struct amdgpu_cac_tdp_table {
   1499 	u16 tdp;
   1500 	u16 configurable_tdp;
   1501 	u16 tdc;
   1502 	u16 battery_power_limit;
   1503 	u16 small_power_limit;
   1504 	u16 low_cac_leakage;
   1505 	u16 high_cac_leakage;
   1506 	u16 maximum_power_delivery_limit;
   1507 };
   1508 
   1509 struct amdgpu_dpm_dynamic_state {
   1510 	struct amdgpu_clock_voltage_dependency_table vddc_dependency_on_sclk;
   1511 	struct amdgpu_clock_voltage_dependency_table vddci_dependency_on_mclk;
   1512 	struct amdgpu_clock_voltage_dependency_table vddc_dependency_on_mclk;
   1513 	struct amdgpu_clock_voltage_dependency_table mvdd_dependency_on_mclk;
   1514 	struct amdgpu_clock_voltage_dependency_table vddc_dependency_on_dispclk;
   1515 	struct amdgpu_uvd_clock_voltage_dependency_table uvd_clock_voltage_dependency_table;
   1516 	struct amdgpu_vce_clock_voltage_dependency_table vce_clock_voltage_dependency_table;
   1517 	struct amdgpu_clock_voltage_dependency_table samu_clock_voltage_dependency_table;
   1518 	struct amdgpu_clock_voltage_dependency_table acp_clock_voltage_dependency_table;
   1519 	struct amdgpu_clock_voltage_dependency_table vddgfx_dependency_on_sclk;
   1520 	struct amdgpu_clock_array valid_sclk_values;
   1521 	struct amdgpu_clock_array valid_mclk_values;
   1522 	struct amdgpu_clock_and_voltage_limits max_clock_voltage_on_dc;
   1523 	struct amdgpu_clock_and_voltage_limits max_clock_voltage_on_ac;
   1524 	u32 mclk_sclk_ratio;
   1525 	u32 sclk_mclk_delta;
   1526 	u16 vddc_vddci_delta;
   1527 	u16 min_vddc_for_pcie_gen2;
   1528 	struct amdgpu_cac_leakage_table cac_leakage_table;
   1529 	struct amdgpu_phase_shedding_limits_table phase_shedding_limits_table;
   1530 	struct amdgpu_ppm_table *ppm_table;
   1531 	struct amdgpu_cac_tdp_table *cac_tdp_table;
   1532 };
   1533 
   1534 struct amdgpu_dpm_fan {
   1535 	u16 t_min;
   1536 	u16 t_med;
   1537 	u16 t_high;
   1538 	u16 pwm_min;
   1539 	u16 pwm_med;
   1540 	u16 pwm_high;
   1541 	u8 t_hyst;
   1542 	u32 cycle_delay;
   1543 	u16 t_max;
   1544 	u8 control_mode;
   1545 	u16 default_max_fan_pwm;
   1546 	u16 default_fan_output_sensitivity;
   1547 	u16 fan_output_sensitivity;
   1548 	bool ucode_fan_control;
   1549 };
   1550 
   1551 enum amdgpu_pcie_gen {
   1552 	AMDGPU_PCIE_GEN1 = 0,
   1553 	AMDGPU_PCIE_GEN2 = 1,
   1554 	AMDGPU_PCIE_GEN3 = 2,
   1555 	AMDGPU_PCIE_GEN_INVALID = 0xffff
   1556 };
   1557 
   1558 enum amdgpu_dpm_forced_level {
   1559 	AMDGPU_DPM_FORCED_LEVEL_AUTO = 0,
   1560 	AMDGPU_DPM_FORCED_LEVEL_LOW = 1,
   1561 	AMDGPU_DPM_FORCED_LEVEL_HIGH = 2,
   1562 };
   1563 
   1564 struct amdgpu_vce_state {
   1565 	/* vce clocks */
   1566 	u32 evclk;
   1567 	u32 ecclk;
   1568 	/* gpu clocks */
   1569 	u32 sclk;
   1570 	u32 mclk;
   1571 	u8 clk_idx;
   1572 	u8 pstate;
   1573 };
   1574 
   1575 struct amdgpu_dpm_funcs {
   1576 	int (*get_temperature)(struct amdgpu_device *adev);
   1577 	int (*pre_set_power_state)(struct amdgpu_device *adev);
   1578 	int (*set_power_state)(struct amdgpu_device *adev);
   1579 	void (*post_set_power_state)(struct amdgpu_device *adev);
   1580 	void (*display_configuration_changed)(struct amdgpu_device *adev);
   1581 	u32 (*get_sclk)(struct amdgpu_device *adev, bool low);
   1582 	u32 (*get_mclk)(struct amdgpu_device *adev, bool low);
   1583 	void (*print_power_state)(struct amdgpu_device *adev, struct amdgpu_ps *ps);
   1584 	void (*debugfs_print_current_performance_level)(struct amdgpu_device *adev, struct seq_file *m);
   1585 	int (*force_performance_level)(struct amdgpu_device *adev, enum amdgpu_dpm_forced_level level);
   1586 	bool (*vblank_too_short)(struct amdgpu_device *adev);
   1587 	void (*powergate_uvd)(struct amdgpu_device *adev, bool gate);
   1588 	void (*powergate_vce)(struct amdgpu_device *adev, bool gate);
   1589 	void (*enable_bapm)(struct amdgpu_device *adev, bool enable);
   1590 	void (*set_fan_control_mode)(struct amdgpu_device *adev, u32 mode);
   1591 	u32 (*get_fan_control_mode)(struct amdgpu_device *adev);
   1592 	int (*set_fan_speed_percent)(struct amdgpu_device *adev, u32 speed);
   1593 	int (*get_fan_speed_percent)(struct amdgpu_device *adev, u32 *speed);
   1594 };
   1595 
   1596 struct amdgpu_dpm {
   1597 	struct amdgpu_ps        *ps;
   1598 	/* number of valid power states */
   1599 	int                     num_ps;
   1600 	/* current power state that is active */
   1601 	struct amdgpu_ps        *current_ps;
   1602 	/* requested power state */
   1603 	struct amdgpu_ps        *requested_ps;
   1604 	/* boot up power state */
   1605 	struct amdgpu_ps        *boot_ps;
   1606 	/* default uvd power state */
   1607 	struct amdgpu_ps        *uvd_ps;
   1608 	/* vce requirements */
   1609 	struct amdgpu_vce_state vce_states[AMDGPU_MAX_VCE_LEVELS];
   1610 	enum amdgpu_vce_level vce_level;
   1611 	enum amdgpu_pm_state_type state;
   1612 	enum amdgpu_pm_state_type user_state;
   1613 	u32                     platform_caps;
   1614 	u32                     voltage_response_time;
   1615 	u32                     backbias_response_time;
   1616 	void                    *priv;
   1617 	u32			new_active_crtcs;
   1618 	int			new_active_crtc_count;
   1619 	u32			current_active_crtcs;
   1620 	int			current_active_crtc_count;
   1621 	struct amdgpu_dpm_dynamic_state dyn_state;
   1622 	struct amdgpu_dpm_fan fan;
   1623 	u32 tdp_limit;
   1624 	u32 near_tdp_limit;
   1625 	u32 near_tdp_limit_adjusted;
   1626 	u32 sq_ramping_threshold;
   1627 	u32 cac_leakage;
   1628 	u16 tdp_od_limit;
   1629 	u32 tdp_adjustment;
   1630 	u16 load_line_slope;
   1631 	bool power_control;
   1632 	bool ac_power;
   1633 	/* special states active */
   1634 	bool                    thermal_active;
   1635 	bool                    uvd_active;
   1636 	bool                    vce_active;
   1637 	/* thermal handling */
   1638 	struct amdgpu_dpm_thermal thermal;
   1639 	/* forced levels */
   1640 	enum amdgpu_dpm_forced_level forced_level;
   1641 };
   1642 
   1643 struct amdgpu_pm {
   1644 	struct mutex		mutex;
   1645 	u32                     current_sclk;
   1646 	u32                     current_mclk;
   1647 	u32                     default_sclk;
   1648 	u32                     default_mclk;
   1649 	struct amdgpu_i2c_chan *i2c_bus;
   1650 	/* internal thermal controller on rv6xx+ */
   1651 	enum amdgpu_int_thermal_type int_thermal_type;
   1652 	struct device	        *int_hwmon_dev;
   1653 	/* fan control parameters */
   1654 	bool                    no_fan;
   1655 	u8                      fan_pulses_per_revolution;
   1656 	u8                      fan_min_rpm;
   1657 	u8                      fan_max_rpm;
   1658 	/* dpm */
   1659 	bool                    dpm_enabled;
   1660 	bool                    sysfs_initialized;
   1661 	struct amdgpu_dpm       dpm;
   1662 	const struct firmware	*fw;	/* SMC firmware */
   1663 	uint32_t                fw_version;
   1664 	const struct amdgpu_dpm_funcs *funcs;
   1665 };
   1666 
   1667 /*
   1668  * UVD
   1669  */
   1670 #define AMDGPU_MAX_UVD_HANDLES	10
   1671 #define AMDGPU_UVD_STACK_SIZE	(1024*1024)
   1672 #define AMDGPU_UVD_HEAP_SIZE	(1024*1024)
   1673 #define AMDGPU_UVD_FIRMWARE_OFFSET 256
   1674 
   1675 struct amdgpu_uvd {
   1676 	struct amdgpu_bo	*vcpu_bo;
   1677 	void			*cpu_addr;
   1678 	uint64_t		gpu_addr;
   1679 	unsigned		fw_version;
   1680 	atomic_t		handles[AMDGPU_MAX_UVD_HANDLES];
   1681 	struct drm_file		*filp[AMDGPU_MAX_UVD_HANDLES];
   1682 	struct delayed_work	idle_work;
   1683 	const struct firmware	*fw;	/* UVD firmware */
   1684 	struct amdgpu_ring	ring;
   1685 	struct amdgpu_irq_src	irq;
   1686 	bool			address_64_bit;
   1687 };
   1688 
   1689 /*
   1690  * VCE
   1691  */
   1692 #define AMDGPU_MAX_VCE_HANDLES	16
   1693 #define AMDGPU_VCE_FIRMWARE_OFFSET 256
   1694 
   1695 #define AMDGPU_VCE_HARVEST_VCE0 (1 << 0)
   1696 #define AMDGPU_VCE_HARVEST_VCE1 (1 << 1)
   1697 
   1698 struct amdgpu_vce {
   1699 	struct amdgpu_bo	*vcpu_bo;
   1700 	uint64_t		gpu_addr;
   1701 	unsigned		fw_version;
   1702 	unsigned		fb_version;
   1703 	atomic_t		handles[AMDGPU_MAX_VCE_HANDLES];
   1704 	struct drm_file		*filp[AMDGPU_MAX_VCE_HANDLES];
   1705 	uint32_t		img_size[AMDGPU_MAX_VCE_HANDLES];
   1706 	struct delayed_work	idle_work;
   1707 	const struct firmware	*fw;	/* VCE firmware */
   1708 	struct amdgpu_ring	ring[AMDGPU_MAX_VCE_RINGS];
   1709 	struct amdgpu_irq_src	irq;
   1710 	unsigned		harvest_config;
   1711 };
   1712 
   1713 /*
   1714  * SDMA
   1715  */
   1716 struct amdgpu_sdma_instance {
   1717 	/* SDMA firmware */
   1718 	const struct firmware	*fw;
   1719 	uint32_t		fw_version;
   1720 	uint32_t		feature_version;
   1721 
   1722 	struct amdgpu_ring	ring;
   1723 	bool			burst_nop;
   1724 };
   1725 
   1726 struct amdgpu_sdma {
   1727 	struct amdgpu_sdma_instance instance[AMDGPU_MAX_SDMA_INSTANCES];
   1728 	struct amdgpu_irq_src	trap_irq;
   1729 	struct amdgpu_irq_src	illegal_inst_irq;
   1730 	int 			num_instances;
   1731 };
   1732 
   1733 /*
   1734  * Firmware
   1735  */
   1736 struct amdgpu_firmware {
   1737 	struct amdgpu_firmware_info ucode[AMDGPU_UCODE_ID_MAXIMUM];
   1738 	bool smu_load;
   1739 	struct amdgpu_bo *fw_buf;
   1740 	unsigned int fw_size;
   1741 };
   1742 
   1743 /*
   1744  * Benchmarking
   1745  */
   1746 void amdgpu_benchmark(struct amdgpu_device *adev, int test_number);
   1747 
   1748 
   1749 /*
   1750  * Testing
   1751  */
   1752 void amdgpu_test_moves(struct amdgpu_device *adev);
   1753 void amdgpu_test_ring_sync(struct amdgpu_device *adev,
   1754 			   struct amdgpu_ring *cpA,
   1755 			   struct amdgpu_ring *cpB);
   1756 void amdgpu_test_syncing(struct amdgpu_device *adev);
   1757 
   1758 /*
   1759  * MMU Notifier
   1760  */
   1761 #if defined(CONFIG_MMU_NOTIFIER)
   1762 int amdgpu_mn_register(struct amdgpu_bo *bo, unsigned long addr);
   1763 void amdgpu_mn_unregister(struct amdgpu_bo *bo);
   1764 #else
   1765 static inline int amdgpu_mn_register(struct amdgpu_bo *bo, unsigned long addr)
   1766 {
   1767 	return -ENODEV;
   1768 }
   1769 static inline void amdgpu_mn_unregister(struct amdgpu_bo *bo) {}
   1770 #endif
   1771 
   1772 /*
   1773  * Debugfs
   1774  */
   1775 struct amdgpu_debugfs {
   1776 	struct drm_info_list	*files;
   1777 	unsigned		num_files;
   1778 };
   1779 
   1780 int amdgpu_debugfs_add_files(struct amdgpu_device *adev,
   1781 			     struct drm_info_list *files,
   1782 			     unsigned nfiles);
   1783 int amdgpu_debugfs_fence_init(struct amdgpu_device *adev);
   1784 
   1785 #if defined(CONFIG_DEBUG_FS)
   1786 int amdgpu_debugfs_init(struct drm_minor *minor);
   1787 void amdgpu_debugfs_cleanup(struct drm_minor *minor);
   1788 #endif
   1789 
   1790 /*
   1791  * amdgpu smumgr functions
   1792  */
   1793 struct amdgpu_smumgr_funcs {
   1794 	int (*check_fw_load_finish)(struct amdgpu_device *adev, uint32_t fwtype);
   1795 	int (*request_smu_load_fw)(struct amdgpu_device *adev);
   1796 	int (*request_smu_specific_fw)(struct amdgpu_device *adev, uint32_t fwtype);
   1797 };
   1798 
   1799 /*
   1800  * amdgpu smumgr
   1801  */
   1802 struct amdgpu_smumgr {
   1803 	struct amdgpu_bo *toc_buf;
   1804 	struct amdgpu_bo *smu_buf;
   1805 	/* asic priv smu data */
   1806 	void *priv;
   1807 	spinlock_t smu_lock;
   1808 	/* smumgr functions */
   1809 	const struct amdgpu_smumgr_funcs *smumgr_funcs;
   1810 	/* ucode loading complete flag */
   1811 	uint32_t fw_flags;
   1812 };
   1813 
   1814 /*
   1815  * ASIC specific register table accessible by UMD
   1816  */
   1817 struct amdgpu_allowed_register_entry {
   1818 	uint32_t reg_offset;
   1819 	bool untouched;
   1820 	bool grbm_indexed;
   1821 };
   1822 
   1823 struct amdgpu_cu_info {
   1824 	uint32_t number; /* total active CU number */
   1825 	uint32_t ao_cu_mask;
   1826 	uint32_t bitmap[4][4];
   1827 };
   1828 
   1829 
   1830 /*
   1831  * ASIC specific functions.
   1832  */
   1833 struct amdgpu_asic_funcs {
   1834 	bool (*read_disabled_bios)(struct amdgpu_device *adev);
   1835 	int (*read_register)(struct amdgpu_device *adev, u32 se_num,
   1836 			     u32 sh_num, u32 reg_offset, u32 *value);
   1837 	void (*set_vga_state)(struct amdgpu_device *adev, bool state);
   1838 	int (*reset)(struct amdgpu_device *adev);
   1839 	/* wait for mc_idle */
   1840 	int (*wait_for_mc_idle)(struct amdgpu_device *adev);
   1841 	/* get the reference clock */
   1842 	u32 (*get_xclk)(struct amdgpu_device *adev);
   1843 	/* get the gpu clock counter */
   1844 	uint64_t (*get_gpu_clock_counter)(struct amdgpu_device *adev);
   1845 	int (*get_cu_info)(struct amdgpu_device *adev, struct amdgpu_cu_info *info);
   1846 	/* MM block clocks */
   1847 	int (*set_uvd_clocks)(struct amdgpu_device *adev, u32 vclk, u32 dclk);
   1848 	int (*set_vce_clocks)(struct amdgpu_device *adev, u32 evclk, u32 ecclk);
   1849 };
   1850 
   1851 /*
   1852  * IOCTL.
   1853  */
   1854 int amdgpu_gem_create_ioctl(struct drm_device *dev, void *data,
   1855 			    struct drm_file *filp);
   1856 int amdgpu_bo_list_ioctl(struct drm_device *dev, void *data,
   1857 				struct drm_file *filp);
   1858 
   1859 int amdgpu_gem_info_ioctl(struct drm_device *dev, void *data,
   1860 			  struct drm_file *filp);
   1861 int amdgpu_gem_userptr_ioctl(struct drm_device *dev, void *data,
   1862 			struct drm_file *filp);
   1863 int amdgpu_gem_mmap_ioctl(struct drm_device *dev, void *data,
   1864 			  struct drm_file *filp);
   1865 int amdgpu_gem_wait_idle_ioctl(struct drm_device *dev, void *data,
   1866 			      struct drm_file *filp);
   1867 int amdgpu_gem_va_ioctl(struct drm_device *dev, void *data,
   1868 			  struct drm_file *filp);
   1869 int amdgpu_gem_op_ioctl(struct drm_device *dev, void *data,
   1870 			struct drm_file *filp);
   1871 int amdgpu_cs_ioctl(struct drm_device *dev, void *data, struct drm_file *filp);
   1872 int amdgpu_cs_wait_ioctl(struct drm_device *dev, void *data, struct drm_file *filp);
   1873 
   1874 int amdgpu_gem_metadata_ioctl(struct drm_device *dev, void *data,
   1875 				struct drm_file *filp);
   1876 
   1877 /* VRAM scratch page for HDP bug, default vram page */
   1878 struct amdgpu_vram_scratch {
   1879 	struct amdgpu_bo		*robj;
   1880 	volatile uint32_t		*ptr;
   1881 	u64				gpu_addr;
   1882 };
   1883 
   1884 /*
   1885  * ACPI
   1886  */
   1887 struct amdgpu_atif_notification_cfg {
   1888 	bool enabled;
   1889 	int command_code;
   1890 };
   1891 
   1892 struct amdgpu_atif_notifications {
   1893 	bool display_switch;
   1894 	bool expansion_mode_change;
   1895 	bool thermal_state;
   1896 	bool forced_power_state;
   1897 	bool system_power_state;
   1898 	bool display_conf_change;
   1899 	bool px_gfx_switch;
   1900 	bool brightness_change;
   1901 	bool dgpu_display_event;
   1902 };
   1903 
   1904 struct amdgpu_atif_functions {
   1905 	bool system_params;
   1906 	bool sbios_requests;
   1907 	bool select_active_disp;
   1908 	bool lid_state;
   1909 	bool get_tv_standard;
   1910 	bool set_tv_standard;
   1911 	bool get_panel_expansion_mode;
   1912 	bool set_panel_expansion_mode;
   1913 	bool temperature_change;
   1914 	bool graphics_device_types;
   1915 };
   1916 
   1917 struct amdgpu_atif {
   1918 	struct amdgpu_atif_notifications notifications;
   1919 	struct amdgpu_atif_functions functions;
   1920 	struct amdgpu_atif_notification_cfg notification_cfg;
   1921 	struct amdgpu_encoder *encoder_for_bl;
   1922 };
   1923 
   1924 struct amdgpu_atcs_functions {
   1925 	bool get_ext_state;
   1926 	bool pcie_perf_req;
   1927 	bool pcie_dev_rdy;
   1928 	bool pcie_bus_width;
   1929 };
   1930 
   1931 struct amdgpu_atcs {
   1932 	struct amdgpu_atcs_functions functions;
   1933 };
   1934 
   1935 /*
   1936  * CGS
   1937  */
   1938 void *amdgpu_cgs_create_device(struct amdgpu_device *adev);
   1939 void amdgpu_cgs_destroy_device(void *cgs_device);
   1940 
   1941 
   1942 /*
   1943  * Core structure, functions and helpers.
   1944  */
   1945 typedef uint32_t (*amdgpu_rreg_t)(struct amdgpu_device*, uint32_t);
   1946 typedef void (*amdgpu_wreg_t)(struct amdgpu_device*, uint32_t, uint32_t);
   1947 
   1948 typedef uint32_t (*amdgpu_block_rreg_t)(struct amdgpu_device*, uint32_t, uint32_t);
   1949 typedef void (*amdgpu_block_wreg_t)(struct amdgpu_device*, uint32_t, uint32_t, uint32_t);
   1950 
   1951 struct amdgpu_ip_block_status {
   1952 	bool valid;
   1953 	bool sw;
   1954 	bool hw;
   1955 };
   1956 
   1957 struct amdgpu_device {
   1958 	struct device			*dev;
   1959 	struct drm_device		*ddev;
   1960 	struct pci_dev			*pdev;
   1961 
   1962 	/* ASIC */
   1963 	enum amd_asic_type		asic_type;
   1964 	uint32_t			family;
   1965 	uint32_t			rev_id;
   1966 	uint32_t			external_rev_id;
   1967 	unsigned long			flags;
   1968 	int				usec_timeout;
   1969 	const struct amdgpu_asic_funcs	*asic_funcs;
   1970 	bool				shutdown;
   1971 	bool				suspend;
   1972 	bool				need_dma32;
   1973 	bool				accel_working;
   1974 	struct work_struct 		reset_work;
   1975 	struct notifier_block		acpi_nb;
   1976 	struct amdgpu_i2c_chan		*i2c_bus[AMDGPU_MAX_I2C_BUS];
   1977 	struct amdgpu_debugfs		debugfs[AMDGPU_DEBUGFS_MAX_COMPONENTS];
   1978 	unsigned 			debugfs_count;
   1979 #if defined(CONFIG_DEBUG_FS)
   1980 	struct dentry			*debugfs_regs;
   1981 #endif
   1982 	struct amdgpu_atif		atif;
   1983 	struct amdgpu_atcs		atcs;
   1984 	struct mutex			srbm_mutex;
   1985 	/* GRBM index mutex. Protects concurrent access to GRBM index */
   1986 	struct mutex                    grbm_idx_mutex;
   1987 	struct dev_pm_domain		vga_pm_domain;
   1988 	bool				have_disp_power_ref;
   1989 
   1990 	/* BIOS */
   1991 	uint8_t				*bios;
   1992 	bool				is_atom_bios;
   1993 	uint16_t			bios_header_start;
   1994 	struct amdgpu_bo		*stollen_vga_memory;
   1995 	uint32_t			bios_scratch[AMDGPU_BIOS_NUM_SCRATCH];
   1996 
   1997 	/* Register/doorbell mmio */
   1998 	resource_size_t			rmmio_base;
   1999 	resource_size_t			rmmio_size;
   2000 	void __iomem			*rmmio;
   2001 	/* protects concurrent MM_INDEX/DATA based register access */
   2002 	spinlock_t mmio_idx_lock;
   2003 	/* protects concurrent SMC based register access */
   2004 	spinlock_t smc_idx_lock;
   2005 	amdgpu_rreg_t			smc_rreg;
   2006 	amdgpu_wreg_t			smc_wreg;
   2007 	/* protects concurrent PCIE register access */
   2008 	spinlock_t pcie_idx_lock;
   2009 	amdgpu_rreg_t			pcie_rreg;
   2010 	amdgpu_wreg_t			pcie_wreg;
   2011 	/* protects concurrent UVD register access */
   2012 	spinlock_t uvd_ctx_idx_lock;
   2013 	amdgpu_rreg_t			uvd_ctx_rreg;
   2014 	amdgpu_wreg_t			uvd_ctx_wreg;
   2015 	/* protects concurrent DIDT register access */
   2016 	spinlock_t didt_idx_lock;
   2017 	amdgpu_rreg_t			didt_rreg;
   2018 	amdgpu_wreg_t			didt_wreg;
   2019 	/* protects concurrent ENDPOINT (audio) register access */
   2020 	spinlock_t audio_endpt_idx_lock;
   2021 	amdgpu_block_rreg_t		audio_endpt_rreg;
   2022 	amdgpu_block_wreg_t		audio_endpt_wreg;
   2023 	void __iomem                    *rio_mem;
   2024 	resource_size_t			rio_mem_size;
   2025 	struct amdgpu_doorbell		doorbell;
   2026 
   2027 	/* clock/pll info */
   2028 	struct amdgpu_clock            clock;
   2029 
   2030 	/* MC */
   2031 	struct amdgpu_mc		mc;
   2032 	struct amdgpu_gart		gart;
   2033 	struct amdgpu_dummy_page	dummy_page;
   2034 	struct amdgpu_vm_manager	vm_manager;
   2035 
   2036 	/* memory management */
   2037 	struct amdgpu_mman		mman;
   2038 	struct amdgpu_gem		gem;
   2039 	struct amdgpu_vram_scratch	vram_scratch;
   2040 	struct amdgpu_wb		wb;
   2041 	atomic64_t			vram_usage;
   2042 	atomic64_t			vram_vis_usage;
   2043 	atomic64_t			gtt_usage;
   2044 	atomic64_t			num_bytes_moved;
   2045 	atomic_t			gpu_reset_counter;
   2046 
   2047 	/* display */
   2048 	struct amdgpu_mode_info		mode_info;
   2049 	struct work_struct		hotplug_work;
   2050 	struct amdgpu_irq_src		crtc_irq;
   2051 	struct amdgpu_irq_src		pageflip_irq;
   2052 	struct amdgpu_irq_src		hpd_irq;
   2053 
   2054 	/* rings */
   2055 	unsigned			fence_context;
   2056 	struct mutex			ring_lock;
   2057 	unsigned			num_rings;
   2058 	struct amdgpu_ring		*rings[AMDGPU_MAX_RINGS];
   2059 	bool				ib_pool_ready;
   2060 	struct amdgpu_sa_manager	ring_tmp_bo;
   2061 
   2062 	/* interrupts */
   2063 	struct amdgpu_irq		irq;
   2064 
   2065 	/* dpm */
   2066 	struct amdgpu_pm		pm;
   2067 	u32				cg_flags;
   2068 	u32				pg_flags;
   2069 
   2070 	/* amdgpu smumgr */
   2071 	struct amdgpu_smumgr smu;
   2072 
   2073 	/* gfx */
   2074 	struct amdgpu_gfx		gfx;
   2075 
   2076 	/* sdma */
   2077 	struct amdgpu_sdma		sdma;
   2078 
   2079 	/* uvd */
   2080 	bool				has_uvd;
   2081 	struct amdgpu_uvd		uvd;
   2082 
   2083 	/* vce */
   2084 	struct amdgpu_vce		vce;
   2085 
   2086 	/* firmwares */
   2087 	struct amdgpu_firmware		firmware;
   2088 
   2089 	/* GDS */
   2090 	struct amdgpu_gds		gds;
   2091 
   2092 	const struct amdgpu_ip_block_version *ip_blocks;
   2093 	int				num_ip_blocks;
   2094 	struct amdgpu_ip_block_status	*ip_block_status;
   2095 	struct mutex	mn_lock;
   2096 	DECLARE_HASHTABLE(mn_hash, 7);
   2097 
   2098 	/* tracking pinned memory */
   2099 	u64 vram_pin_size;
   2100 	u64 gart_pin_size;
   2101 
   2102 	/* amdkfd interface */
   2103 	struct kfd_dev          *kfd;
   2104 
   2105 	/* kernel conext for IB submission */
   2106 	struct amdgpu_ctx	kernel_ctx;
   2107 };
   2108 
   2109 bool amdgpu_device_is_px(struct drm_device *dev);
   2110 int amdgpu_device_init(struct amdgpu_device *adev,
   2111 		       struct drm_device *ddev,
   2112 		       struct pci_dev *pdev,
   2113 		       uint32_t flags);
   2114 void amdgpu_device_fini(struct amdgpu_device *adev);
   2115 int amdgpu_gpu_wait_for_idle(struct amdgpu_device *adev);
   2116 
   2117 uint32_t amdgpu_mm_rreg(struct amdgpu_device *adev, uint32_t reg,
   2118 			bool always_indirect);
   2119 void amdgpu_mm_wreg(struct amdgpu_device *adev, uint32_t reg, uint32_t v,
   2120 		    bool always_indirect);
   2121 u32 amdgpu_io_rreg(struct amdgpu_device *adev, u32 reg);
   2122 void amdgpu_io_wreg(struct amdgpu_device *adev, u32 reg, u32 v);
   2123 
   2124 u32 amdgpu_mm_rdoorbell(struct amdgpu_device *adev, u32 index);
   2125 void amdgpu_mm_wdoorbell(struct amdgpu_device *adev, u32 index, u32 v);
   2126 
   2127 /*
   2128  * Cast helper
   2129  */
   2130 extern const struct fence_ops amdgpu_fence_ops;
   2131 static inline struct amdgpu_fence *to_amdgpu_fence(struct fence *f)
   2132 {
   2133 	struct amdgpu_fence *__f = container_of(f, struct amdgpu_fence, base);
   2134 
   2135 	if (__f->base.ops == &amdgpu_fence_ops)
   2136 		return __f;
   2137 
   2138 	return NULL;
   2139 }
   2140 
   2141 /*
   2142  * Registers read & write functions.
   2143  */
   2144 #define RREG32(reg) amdgpu_mm_rreg(adev, (reg), false)
   2145 #define RREG32_IDX(reg) amdgpu_mm_rreg(adev, (reg), true)
   2146 #define DREG32(reg) printk(KERN_INFO "REGISTER: " #reg " : 0x%08X\n", amdgpu_mm_rreg(adev, (reg), false))
   2147 #define WREG32(reg, v) amdgpu_mm_wreg(adev, (reg), (v), false)
   2148 #define WREG32_IDX(reg, v) amdgpu_mm_wreg(adev, (reg), (v), true)
   2149 #define REG_SET(FIELD, v) (((v) << FIELD##_SHIFT) & FIELD##_MASK)
   2150 #define REG_GET(FIELD, v) (((v) << FIELD##_SHIFT) & FIELD##_MASK)
   2151 #define RREG32_PCIE(reg) adev->pcie_rreg(adev, (reg))
   2152 #define WREG32_PCIE(reg, v) adev->pcie_wreg(adev, (reg), (v))
   2153 #define RREG32_SMC(reg) adev->smc_rreg(adev, (reg))
   2154 #define WREG32_SMC(reg, v) adev->smc_wreg(adev, (reg), (v))
   2155 #define RREG32_UVD_CTX(reg) adev->uvd_ctx_rreg(adev, (reg))
   2156 #define WREG32_UVD_CTX(reg, v) adev->uvd_ctx_wreg(adev, (reg), (v))
   2157 #define RREG32_DIDT(reg) adev->didt_rreg(adev, (reg))
   2158 #define WREG32_DIDT(reg, v) adev->didt_wreg(adev, (reg), (v))
   2159 #define RREG32_AUDIO_ENDPT(block, reg) adev->audio_endpt_rreg(adev, (block), (reg))
   2160 #define WREG32_AUDIO_ENDPT(block, reg, v) adev->audio_endpt_wreg(adev, (block), (reg), (v))
   2161 #define WREG32_P(reg, val, mask)				\
   2162 	do {							\
   2163 		uint32_t tmp_ = RREG32(reg);			\
   2164 		tmp_ &= (mask);					\
   2165 		tmp_ |= ((val) & ~(mask));			\
   2166 		WREG32(reg, tmp_);				\
   2167 	} while (0)
   2168 #define WREG32_AND(reg, and) WREG32_P(reg, 0, and)
   2169 #define WREG32_OR(reg, or) WREG32_P(reg, or, ~(or))
   2170 #define WREG32_PLL_P(reg, val, mask)				\
   2171 	do {							\
   2172 		uint32_t tmp_ = RREG32_PLL(reg);		\
   2173 		tmp_ &= (mask);					\
   2174 		tmp_ |= ((val) & ~(mask));			\
   2175 		WREG32_PLL(reg, tmp_);				\
   2176 	} while (0)
   2177 #define DREG32_SYS(sqf, adev, reg) seq_printf((sqf), #reg " : 0x%08X\n", amdgpu_mm_rreg((adev), (reg), false))
   2178 #define RREG32_IO(reg) amdgpu_io_rreg(adev, (reg))
   2179 #define WREG32_IO(reg, v) amdgpu_io_wreg(adev, (reg), (v))
   2180 
   2181 #define RDOORBELL32(index) amdgpu_mm_rdoorbell(adev, (index))
   2182 #define WDOORBELL32(index, v) amdgpu_mm_wdoorbell(adev, (index), (v))
   2183 
   2184 #define REG_FIELD_SHIFT(reg, field) reg##__##field##__SHIFT
   2185 #define REG_FIELD_MASK(reg, field) reg##__##field##_MASK
   2186 
   2187 #define REG_SET_FIELD(orig_val, reg, field, field_val)			\
   2188 	(((orig_val) & ~REG_FIELD_MASK(reg, field)) |			\
   2189 	 (REG_FIELD_MASK(reg, field) & ((field_val) << REG_FIELD_SHIFT(reg, field))))
   2190 
   2191 #define REG_GET_FIELD(value, reg, field)				\
   2192 	(((value) & REG_FIELD_MASK(reg, field)) >> REG_FIELD_SHIFT(reg, field))
   2193 
   2194 /*
   2195  * BIOS helpers.
   2196  */
   2197 #define RBIOS8(i) (adev->bios[i])
   2198 #define RBIOS16(i) (RBIOS8(i) | (RBIOS8((i)+1) << 8))
   2199 #define RBIOS32(i) ((RBIOS16(i)) | (RBIOS16((i)+2) << 16))
   2200 
   2201 /*
   2202  * RING helpers.
   2203  */
   2204 static inline void amdgpu_ring_write(struct amdgpu_ring *ring, uint32_t v)
   2205 {
   2206 	if (ring->count_dw <= 0)
   2207 		DRM_ERROR("amdgpu: writing more dwords to the ring than expected!\n");
   2208 	ring->ring[ring->wptr++] = v;
   2209 	ring->wptr &= ring->ptr_mask;
   2210 	ring->count_dw--;
   2211 	ring->ring_free_dw--;
   2212 }
   2213 
   2214 static inline struct amdgpu_sdma_instance *
   2215 amdgpu_get_sdma_instance(struct amdgpu_ring *ring)
   2216 {
   2217 	struct amdgpu_device *adev = ring->adev;
   2218 	int i;
   2219 
   2220 	for (i = 0; i < adev->sdma.num_instances; i++)
   2221 		if (&adev->sdma.instance[i].ring == ring)
   2222 			break;
   2223 
   2224 	if (i < AMDGPU_MAX_SDMA_INSTANCES)
   2225 		return &adev->sdma.instance[i];
   2226 	else
   2227 		return NULL;
   2228 }
   2229 
   2230 /*
   2231  * ASICs macro.
   2232  */
   2233 #define amdgpu_asic_set_vga_state(adev, state) (adev)->asic_funcs->set_vga_state((adev), (state))
   2234 #define amdgpu_asic_reset(adev) (adev)->asic_funcs->reset((adev))
   2235 #define amdgpu_asic_wait_for_mc_idle(adev) (adev)->asic_funcs->wait_for_mc_idle((adev))
   2236 #define amdgpu_asic_get_xclk(adev) (adev)->asic_funcs->get_xclk((adev))
   2237 #define amdgpu_asic_set_uvd_clocks(adev, v, d) (adev)->asic_funcs->set_uvd_clocks((adev), (v), (d))
   2238 #define amdgpu_asic_set_vce_clocks(adev, ev, ec) (adev)->asic_funcs->set_vce_clocks((adev), (ev), (ec))
   2239 #define amdgpu_asic_get_gpu_clock_counter(adev) (adev)->asic_funcs->get_gpu_clock_counter((adev))
   2240 #define amdgpu_asic_read_disabled_bios(adev) (adev)->asic_funcs->read_disabled_bios((adev))
   2241 #define amdgpu_asic_read_register(adev, se, sh, offset, v)((adev)->asic_funcs->read_register((adev), (se), (sh), (offset), (v)))
   2242 #define amdgpu_asic_get_cu_info(adev, info) (adev)->asic_funcs->get_cu_info((adev), (info))
   2243 #define amdgpu_gart_flush_gpu_tlb(adev, vmid) (adev)->gart.gart_funcs->flush_gpu_tlb((adev), (vmid))
   2244 #define amdgpu_gart_set_pte_pde(adev, pt, idx, addr, flags) (adev)->gart.gart_funcs->set_pte_pde((adev), (pt), (idx), (addr), (flags))
   2245 #define amdgpu_vm_copy_pte(adev, ib, pe, src, count) ((adev)->vm_manager.vm_pte_funcs->copy_pte((ib), (pe), (src), (count)))
   2246 #define amdgpu_vm_write_pte(adev, ib, pe, addr, count, incr, flags) ((adev)->vm_manager.vm_pte_funcs->write_pte((ib), (pe), (addr), (count), (incr), (flags)))
   2247 #define amdgpu_vm_set_pte_pde(adev, ib, pe, addr, count, incr, flags) ((adev)->vm_manager.vm_pte_funcs->set_pte_pde((ib), (pe), (addr), (count), (incr), (flags)))
   2248 #define amdgpu_vm_pad_ib(adev, ib) ((adev)->vm_manager.vm_pte_funcs->pad_ib((ib)))
   2249 #define amdgpu_ring_parse_cs(r, p, ib) ((r)->funcs->parse_cs((p), (ib)))
   2250 #define amdgpu_ring_test_ring(r) (r)->funcs->test_ring((r))
   2251 #define amdgpu_ring_test_ib(r) (r)->funcs->test_ib((r))
   2252 #define amdgpu_ring_get_rptr(r) (r)->funcs->get_rptr((r))
   2253 #define amdgpu_ring_get_wptr(r) (r)->funcs->get_wptr((r))
   2254 #define amdgpu_ring_set_wptr(r) (r)->funcs->set_wptr((r))
   2255 #define amdgpu_ring_emit_ib(r, ib) (r)->funcs->emit_ib((r), (ib))
   2256 #define amdgpu_ring_emit_vm_flush(r, vmid, addr) (r)->funcs->emit_vm_flush((r), (vmid), (addr))
   2257 #define amdgpu_ring_emit_fence(r, addr, seq, flags) (r)->funcs->emit_fence((r), (addr), (seq), (flags))
   2258 #define amdgpu_ring_emit_semaphore(r, semaphore, emit_wait) (r)->funcs->emit_semaphore((r), (semaphore), (emit_wait))
   2259 #define amdgpu_ring_emit_gds_switch(r, v, db, ds, wb, ws, ab, as) (r)->funcs->emit_gds_switch((r), (v), (db), (ds), (wb), (ws), (ab), (as))
   2260 #define amdgpu_ring_emit_hdp_flush(r) (r)->funcs->emit_hdp_flush((r))
   2261 #define amdgpu_ih_get_wptr(adev) (adev)->irq.ih_funcs->get_wptr((adev))
   2262 #define amdgpu_ih_decode_iv(adev, iv) (adev)->irq.ih_funcs->decode_iv((adev), (iv))
   2263 #define amdgpu_ih_set_rptr(adev) (adev)->irq.ih_funcs->set_rptr((adev))
   2264 #define amdgpu_display_set_vga_render_state(adev, r) (adev)->mode_info.funcs->set_vga_render_state((adev), (r))
   2265 #define amdgpu_display_vblank_get_counter(adev, crtc) (adev)->mode_info.funcs->vblank_get_counter((adev), (crtc))
   2266 #define amdgpu_display_vblank_wait(adev, crtc) (adev)->mode_info.funcs->vblank_wait((adev), (crtc))
   2267 #define amdgpu_display_is_display_hung(adev) (adev)->mode_info.funcs->is_display_hung((adev))
   2268 #define amdgpu_display_backlight_set_level(adev, e, l) (adev)->mode_info.funcs->backlight_set_level((e), (l))
   2269 #define amdgpu_display_backlight_get_level(adev, e) (adev)->mode_info.funcs->backlight_get_level((e))
   2270 #define amdgpu_display_hpd_sense(adev, h) (adev)->mode_info.funcs->hpd_sense((adev), (h))
   2271 #define amdgpu_display_hpd_set_polarity(adev, h) (adev)->mode_info.funcs->hpd_set_polarity((adev), (h))
   2272 #define amdgpu_display_hpd_get_gpio_reg(adev) (adev)->mode_info.funcs->hpd_get_gpio_reg((adev))
   2273 #define amdgpu_display_bandwidth_update(adev) (adev)->mode_info.funcs->bandwidth_update((adev))
   2274 #define amdgpu_display_page_flip(adev, crtc, base) (adev)->mode_info.funcs->page_flip((adev), (crtc), (base))
   2275 #define amdgpu_display_page_flip_get_scanoutpos(adev, crtc, vbl, pos) (adev)->mode_info.funcs->page_flip_get_scanoutpos((adev), (crtc), (vbl), (pos))
   2276 #define amdgpu_display_add_encoder(adev, e, s, c) (adev)->mode_info.funcs->add_encoder((adev), (e), (s), (c))
   2277 #define amdgpu_display_add_connector(adev, ci, sd, ct, ib, coi, h, r) (adev)->mode_info.funcs->add_connector((adev), (ci), (sd), (ct), (ib), (coi), (h), (r))
   2278 #define amdgpu_display_stop_mc_access(adev, s) (adev)->mode_info.funcs->stop_mc_access((adev), (s))
   2279 #define amdgpu_display_resume_mc_access(adev, s) (adev)->mode_info.funcs->resume_mc_access((adev), (s))
   2280 #define amdgpu_emit_copy_buffer(adev, ib, s, d, b) (adev)->mman.buffer_funcs->emit_copy_buffer((ib),  (s), (d), (b))
   2281 #define amdgpu_emit_fill_buffer(adev, ib, s, d, b) (adev)->mman.buffer_funcs->emit_fill_buffer((ib), (s), (d), (b))
   2282 #define amdgpu_dpm_get_temperature(adev) (adev)->pm.funcs->get_temperature((adev))
   2283 #define amdgpu_dpm_pre_set_power_state(adev) (adev)->pm.funcs->pre_set_power_state((adev))
   2284 #define amdgpu_dpm_set_power_state(adev) (adev)->pm.funcs->set_power_state((adev))
   2285 #define amdgpu_dpm_post_set_power_state(adev) (adev)->pm.funcs->post_set_power_state((adev))
   2286 #define amdgpu_dpm_display_configuration_changed(adev) (adev)->pm.funcs->display_configuration_changed((adev))
   2287 #define amdgpu_dpm_get_sclk(adev, l) (adev)->pm.funcs->get_sclk((adev), (l))
   2288 #define amdgpu_dpm_get_mclk(adev, l) (adev)->pm.funcs->get_mclk((adev), (l))
   2289 #define amdgpu_dpm_print_power_state(adev, ps) (adev)->pm.funcs->print_power_state((adev), (ps))
   2290 #define amdgpu_dpm_debugfs_print_current_performance_level(adev, m) (adev)->pm.funcs->debugfs_print_current_performance_level((adev), (m))
   2291 #define amdgpu_dpm_force_performance_level(adev, l) (adev)->pm.funcs->force_performance_level((adev), (l))
   2292 #define amdgpu_dpm_vblank_too_short(adev) (adev)->pm.funcs->vblank_too_short((adev))
   2293 #define amdgpu_dpm_powergate_uvd(adev, g) (adev)->pm.funcs->powergate_uvd((adev), (g))
   2294 #define amdgpu_dpm_powergate_vce(adev, g) (adev)->pm.funcs->powergate_vce((adev), (g))
   2295 #define amdgpu_dpm_enable_bapm(adev, e) (adev)->pm.funcs->enable_bapm((adev), (e))
   2296 #define amdgpu_dpm_set_fan_control_mode(adev, m) (adev)->pm.funcs->set_fan_control_mode((adev), (m))
   2297 #define amdgpu_dpm_get_fan_control_mode(adev) (adev)->pm.funcs->get_fan_control_mode((adev))
   2298 #define amdgpu_dpm_set_fan_speed_percent(adev, s) (adev)->pm.funcs->set_fan_speed_percent((adev), (s))
   2299 #define amdgpu_dpm_get_fan_speed_percent(adev, s) (adev)->pm.funcs->get_fan_speed_percent((adev), (s))
   2300 
   2301 #define amdgpu_gds_switch(adev, r, v, d, w, a) (adev)->gds.funcs->patch_gds_switch((r), (v), (d), (w), (a))
   2302 
   2303 /* Common functions */
   2304 int amdgpu_gpu_reset(struct amdgpu_device *adev);
   2305 void amdgpu_pci_config_reset(struct amdgpu_device *adev);
   2306 bool amdgpu_card_posted(struct amdgpu_device *adev);
   2307 void amdgpu_update_display_priority(struct amdgpu_device *adev);
   2308 bool amdgpu_boot_test_post_card(struct amdgpu_device *adev);
   2309 
   2310 int amdgpu_cs_parser_init(struct amdgpu_cs_parser *p, void *data);
   2311 int amdgpu_cs_get_ring(struct amdgpu_device *adev, u32 ip_type,
   2312 		       u32 ip_instance, u32 ring,
   2313 		       struct amdgpu_ring **out_ring);
   2314 void amdgpu_ttm_placement_from_domain(struct amdgpu_bo *rbo, u32 domain);
   2315 bool amdgpu_ttm_bo_is_amdgpu_bo(struct ttm_buffer_object *bo);
   2316 int amdgpu_ttm_tt_set_userptr(struct ttm_tt *ttm, uint64_t addr,
   2317 				     uint32_t flags);
   2318 bool amdgpu_ttm_tt_has_userptr(struct ttm_tt *ttm);
   2319 bool amdgpu_ttm_tt_affect_userptr(struct ttm_tt *ttm, unsigned long start,
   2320 				  unsigned long end);
   2321 bool amdgpu_ttm_tt_is_readonly(struct ttm_tt *ttm);
   2322 uint32_t amdgpu_ttm_tt_pte_flags(struct amdgpu_device *adev, struct ttm_tt *ttm,
   2323 				 struct ttm_mem_reg *mem);
   2324 void amdgpu_vram_location(struct amdgpu_device *adev, struct amdgpu_mc *mc, u64 base);
   2325 void amdgpu_gtt_location(struct amdgpu_device *adev, struct amdgpu_mc *mc);
   2326 void amdgpu_ttm_set_active_vram_size(struct amdgpu_device *adev, u64 size);
   2327 void amdgpu_program_register_sequence(struct amdgpu_device *adev,
   2328 					     const u32 *registers,
   2329 					     const u32 array_size);
   2330 
   2331 bool amdgpu_device_is_px(struct drm_device *dev);
   2332 /* atpx handler */
   2333 #if defined(CONFIG_VGA_SWITCHEROO)
   2334 void amdgpu_register_atpx_handler(void);
   2335 void amdgpu_unregister_atpx_handler(void);
   2336 #else
   2337 static inline void amdgpu_register_atpx_handler(void) {}
   2338 static inline void amdgpu_unregister_atpx_handler(void) {}
   2339 #endif
   2340 
   2341 /*
   2342  * KMS
   2343  */
   2344 extern const struct drm_ioctl_desc amdgpu_ioctls_kms[];
   2345 extern int amdgpu_max_kms_ioctl;
   2346 
   2347 int amdgpu_driver_load_kms(struct drm_device *dev, unsigned long flags);
   2348 int amdgpu_driver_unload_kms(struct drm_device *dev);
   2349 void amdgpu_driver_lastclose_kms(struct drm_device *dev);
   2350 int amdgpu_driver_open_kms(struct drm_device *dev, struct drm_file *file_priv);
   2351 void amdgpu_driver_postclose_kms(struct drm_device *dev,
   2352 				 struct drm_file *file_priv);
   2353 void amdgpu_driver_preclose_kms(struct drm_device *dev,
   2354 				struct drm_file *file_priv);
   2355 int amdgpu_suspend_kms(struct drm_device *dev, bool suspend, bool fbcon);
   2356 int amdgpu_resume_kms(struct drm_device *dev, bool resume, bool fbcon);
   2357 u32 amdgpu_get_vblank_counter_kms(struct drm_device *dev, unsigned int pipe);
   2358 int amdgpu_enable_vblank_kms(struct drm_device *dev, unsigned int pipe);
   2359 void amdgpu_disable_vblank_kms(struct drm_device *dev, unsigned int pipe);
   2360 int amdgpu_get_vblank_timestamp_kms(struct drm_device *dev, unsigned int pipe,
   2361 				    int *max_error,
   2362 				    struct timeval *vblank_time,
   2363 				    unsigned flags);
   2364 long amdgpu_kms_compat_ioctl(struct file *filp, unsigned int cmd,
   2365 			     unsigned long arg);
   2366 
   2367 /*
   2368  * functions used by amdgpu_encoder.c
   2369  */
   2370 struct amdgpu_afmt_acr {
   2371 	u32 clock;
   2372 
   2373 	int n_32khz;
   2374 	int cts_32khz;
   2375 
   2376 	int n_44_1khz;
   2377 	int cts_44_1khz;
   2378 
   2379 	int n_48khz;
   2380 	int cts_48khz;
   2381 
   2382 };
   2383 
   2384 struct amdgpu_afmt_acr amdgpu_afmt_acr(uint32_t clock);
   2385 
   2386 /* amdgpu_acpi.c */
   2387 #if defined(CONFIG_ACPI)
   2388 int amdgpu_acpi_init(struct amdgpu_device *adev);
   2389 void amdgpu_acpi_fini(struct amdgpu_device *adev);
   2390 bool amdgpu_acpi_is_pcie_performance_request_supported(struct amdgpu_device *adev);
   2391 int amdgpu_acpi_pcie_performance_request(struct amdgpu_device *adev,
   2392 						u8 perf_req, bool advertise);
   2393 int amdgpu_acpi_pcie_notify_device_ready(struct amdgpu_device *adev);
   2394 #else
   2395 static inline int amdgpu_acpi_init(struct amdgpu_device *adev) { return 0; }
   2396 static inline void amdgpu_acpi_fini(struct amdgpu_device *adev) { }
   2397 #endif
   2398 
   2399 struct amdgpu_bo_va_mapping *
   2400 amdgpu_cs_find_mapping(struct amdgpu_cs_parser *parser,
   2401 		       uint64_t addr, struct amdgpu_bo **bo);
   2402 
   2403 #include "amdgpu_object.h"
   2404 
   2405 #endif
   2406