linux-nvgpu/drivers/gpu/nvgpu/gk20a/gr_gk20a.h

/*
 * GK20A Graphics Engine
 *
 * Copyright (c) 2011-2019, NVIDIA CORPORATION.  All rights reserved.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
 * DEALINGS IN THE SOFTWARE.
 */
#ifndef GR_GK20A_H
#define GR_GK20A_H

#include <nvgpu/types.h>
#include <nvgpu/cond.h>

#include "mm_gk20a.h"

#define GK20A_TIMEOUT_FPGA		100000U /* 100 sec */

struct nvgpu_gr_ctx;
struct channel_gk20a;
struct nvgpu_warpstate;
struct nvgpu_gr_ctx_desc;
struct nvgpu_gr_falcon;
struct nvgpu_gr_global_ctx_buffer_desc;
struct nvgpu_gr_zbc;
struct nvgpu_gr_hwpm_map;
struct nvgpu_gr_isr_data;
struct nvgpu_gr_ctx_desc;
struct dbg_session_gk20a;

enum ctxsw_addr_type;

enum {
	ELCG_MODE = (1 << 0),
	BLCG_MODE = (1 << 1),
	INVALID_MODE = (1 << 2)
};

enum {
	NVGPU_EVENT_ID_BPT_INT = 0,
	NVGPU_EVENT_ID_BPT_PAUSE,
	NVGPU_EVENT_ID_BLOCKING_SYNC,
	NVGPU_EVENT_ID_CILP_PREEMPTION_STARTED,
	NVGPU_EVENT_ID_CILP_PREEMPTION_COMPLETE,
	NVGPU_EVENT_ID_GR_SEMAPHORE_WRITE_AWAKEN,
	NVGPU_EVENT_ID_MAX,
};

struct gr_channel_map_tlb_entry {
	u32 curr_ctx;
	u32 chid;
	u32 tsgid;
};

#if defined(CONFIG_GK20A_CYCLE_STATS)
struct gk20a_cs_snapshot_client;
struct gk20a_cs_snapshot;
#endif

struct nvgpu_preemption_modes_rec {
	u32 graphics_preemption_mode_flags; /* supported preemption modes */
	u32 compute_preemption_mode_flags; /* supported preemption modes */

	u32 default_graphics_preempt_mode; /* default mode */
	u32 default_compute_preempt_mode; /* default mode */
};

struct nvgpu_gr {
	struct gk20a *g;
	struct {
		bool golden_image_initialized;
		u32 golden_image_size;

		u32 pm_ctxsw_image_size;

		u32 preempt_image_size;

		u32 zcull_image_size;

		bool force_preemption_gfxp;
		bool force_preemption_cilp;

		bool dump_ctxsw_stats_on_channel_close;
	} ctx_vars;

	struct nvgpu_mutex ctx_mutex; /* protect golden ctx init */

	struct nvgpu_cond init_wq;
	bool initialized;

	u32 num_fbps;
	u32 max_fbps_count;

	u32 gfxp_wfi_timeout_count;
	bool gfxp_wfi_timeout_unit_usec;

	struct nvgpu_gr_global_ctx_buffer_desc *global_ctx_buffer;

	struct nvgpu_gr_obj_ctx_golden_image *golden_image;

	struct nvgpu_gr_ctx_desc *gr_ctx_desc;

	struct nvgpu_gr_config *config;

	struct nvgpu_gr_hwpm_map *hwpm_map;

	struct nvgpu_gr_zcull *zcull;

	struct nvgpu_gr_zbc *zbc;

	struct nvgpu_gr_falcon *falcon;

#define GR_CHANNEL_MAP_TLB_SIZE		2U /* must of power of 2 */
	struct gr_channel_map_tlb_entry chid_tlb[GR_CHANNEL_MAP_TLB_SIZE];
	u32 channel_tlb_flush_index;
	struct nvgpu_spinlock ch_tlb_lock;

	void (*remove_support)(struct gk20a *g);
	bool sw_ready;

	u32 fecs_feature_override_ecc_val;

	u32 cilp_preempt_pending_chid;

	u32 fbp_en_mask;
	u32 *fbp_rop_l2_en_mask;

#if defined(CONFIG_GK20A_CYCLE_STATS)
	struct nvgpu_mutex			cs_lock;
	struct gk20a_cs_snapshot	*cs_data;
#endif
	u32 max_css_buffer_size;
	u32 max_ctxsw_ring_buffer_size;
};



struct nvgpu_warpstate {
	u64 valid_warps[2];
	u64 trapped_warps[2];
	u64 paused_warps[2];
};

struct gpu_ops;
int gr_gk20a_init_golden_ctx_image(struct gk20a *g,
					  struct channel_gk20a *c,
					  struct nvgpu_gr_ctx *gr_ctx);

int gk20a_gr_isr(struct gk20a *g);

void gr_gk20a_init_cg_mode(struct gk20a *g, u32 cgmode, u32 mode_config);

/* sm */
bool gk20a_gr_sm_debugger_attached(struct gk20a *g);
u32 gk20a_gr_get_sm_no_lock_down_hww_global_esr_mask(struct gk20a *g);

struct nvgpu_dbg_reg_op;
int gr_gk20a_exec_ctx_ops(struct channel_gk20a *ch,
			  struct nvgpu_dbg_reg_op *ctx_ops, u32 num_ops,
			  u32 num_ctx_wr_ops, u32 num_ctx_rd_ops,
			  bool *is_curr_ctx);
int __gr_gk20a_exec_ctx_ops(struct channel_gk20a *ch,
			    struct nvgpu_dbg_reg_op *ctx_ops, u32 num_ops,
			    u32 num_ctx_wr_ops, u32 num_ctx_rd_ops,
			    bool ch_is_curr_ctx);
int gr_gk20a_get_ctx_buffer_offsets(struct gk20a *g,
				    u32 addr,
				    u32 max_offsets,
				    u32 *offsets, u32 *offset_addrs,
				    u32 *num_offsets,
				    bool is_quad, u32 quad);
int gr_gk20a_get_pm_ctx_buffer_offsets(struct gk20a *g,
				       u32 addr,
				       u32 max_offsets,
				       u32 *offsets, u32 *offset_addrs,
				       u32 *num_offsets);
int gr_gk20a_update_smpc_ctxsw_mode(struct gk20a *g,
				    struct channel_gk20a *c,
				    bool enable_smpc_ctxsw);
int gr_gk20a_update_hwpm_ctxsw_mode(struct gk20a *g,
				  struct channel_gk20a *c,
				  u64 gpu_va,
				  u32 mode);

void gk20a_gr_resume_single_sm(struct gk20a *g,
		u32 gpc, u32 tpc, u32 sm);
void gk20a_gr_resume_all_sms(struct gk20a *g);
void gk20a_gr_suspend_single_sm(struct gk20a *g,
		u32 gpc, u32 tpc, u32 sm,
		u32 global_esr_mask, bool check_errors);
void gk20a_gr_suspend_all_sms(struct gk20a *g,
		u32 global_esr_mask, bool check_errors);
int gr_gk20a_set_sm_debug_mode(struct gk20a *g,
	struct channel_gk20a *ch, u64 sms, bool enable);
bool gk20a_is_channel_ctx_resident(struct channel_gk20a *ch);
int gr_gk20a_handle_sm_exception(struct gk20a *g, u32 gpc, u32 tpc, u32 sm,
		bool *post_event, struct channel_gk20a *fault_ch,
		u32 *hww_global_esr);

#if defined(CONFIG_GK20A_CYCLE_STATS)
int gr_gk20a_css_attach(struct channel_gk20a *ch,   /* in - main hw structure */
			u32 perfmon_id_count,	    /* in - number of perfmons*/
			u32 *perfmon_id_start,	    /* out- index of first pm */
			/* in/out - pointer to client data used in later     */
			struct gk20a_cs_snapshot_client *css_client);

int gr_gk20a_css_detach(struct channel_gk20a *ch,
				struct gk20a_cs_snapshot_client *css_client);
int gr_gk20a_css_flush(struct channel_gk20a *ch,
				struct gk20a_cs_snapshot_client *css_client);

void gr_gk20a_free_cyclestats_snapshot_data(struct gk20a *g);

#else
/* fake empty cleanup function if no cyclestats snapshots enabled */
static inline void gr_gk20a_free_cyclestats_snapshot_data(struct gk20a *g)
{
	(void)g;
}
#endif

int gk20a_gr_handle_fecs_error(struct gk20a *g, struct channel_gk20a *ch,
		struct nvgpu_gr_isr_data *isr_data);
int gk20a_gr_lock_down_sm(struct gk20a *g,
			 u32 gpc, u32 tpc, u32 sm, u32 global_esr_mask,
			 bool check_errors);
int gk20a_gr_wait_for_sm_lock_down(struct gk20a *g, u32 gpc, u32 tpc, u32 sm,
		u32 global_esr_mask, bool check_errors);

u32 gk20a_gr_get_sm_hww_warp_esr(struct gk20a *g, u32 gpc, u32 tpc, u32 sm);
u32 gk20a_gr_get_sm_hww_global_esr(struct gk20a *g, u32 gpc, u32 tpc, u32 sm);

bool gr_gk20a_suspend_context(struct channel_gk20a *ch);
bool gr_gk20a_resume_context(struct channel_gk20a *ch);
int gr_gk20a_suspend_contexts(struct gk20a *g,
			      struct dbg_session_gk20a *dbg_s,
			      int *ctx_resident_ch_fd);
int gr_gk20a_resume_contexts(struct gk20a *g,
			      struct dbg_session_gk20a *dbg_s,
			      int *ctx_resident_ch_fd);
int gr_gk20a_trigger_suspend(struct gk20a *g);
int gr_gk20a_wait_for_pause(struct gk20a *g, struct nvgpu_warpstate *w_state);
int gr_gk20a_resume_from_pause(struct gk20a *g);
int gr_gk20a_clear_sm_errors(struct gk20a *g);
u32 gr_gk20a_tpc_enabled_exceptions(struct gk20a *g);

void gk20a_gr_get_esr_sm_sel(struct gk20a *g, u32 gpc, u32 tpc,
				u32 *esr_sm_sel);
void gk20a_gr_init_ovr_sm_dsm_perf(void);
void gk20a_gr_get_ovr_perf_regs(struct gk20a *g, u32 *num_ovr_perf_regs,
					       u32 **ovr_perf_regs);

int gk20a_init_sw_bundle(struct gk20a *g);
int gr_gk20a_decode_priv_addr(struct gk20a *g, u32 addr,
	enum ctxsw_addr_type *addr_type,
	u32 *gpc_num, u32 *tpc_num, u32 *ppc_num, u32 *be_num,
	u32 *broadcast_flags);
int gr_gk20a_split_ppc_broadcast_addr(struct gk20a *g, u32 addr,
	u32 gpc_num,
	u32 *priv_addr_table, u32 *t);
int gr_gk20a_create_priv_addr_table(struct gk20a *g,
	u32 addr,
	u32 *priv_addr_table,
	u32 *num_registers);
void gr_gk20a_split_fbpa_broadcast_addr(struct gk20a *g, u32 addr,
	u32 num_fbpas,
	u32 *priv_addr_table, u32 *t);
int gr_gk20a_get_offset_in_gpccs_segment(struct gk20a *g,
	enum ctxsw_addr_type addr_type, u32 num_tpcs, u32 num_ppcs,
	u32 reg_list_ppc_count, u32 *__offset_in_segment);

#endif /*__GR_GK20A_H__*/