146 lines
4.0 KiB
C
146 lines
4.0 KiB
C
/* SPDX-License-Identifier: MIT */
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/*
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* Copyright © 2014 Intel Corporation
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*/
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#ifndef __INTEL_LRC_H__
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#define __INTEL_LRC_H__
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#include "i915_priolist_types.h"
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#include <linux/bitfield.h>
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#include <linux/types.h>
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#include "intel_context.h"
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struct drm_i915_gem_object;
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struct i915_gem_ww_ctx;
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struct intel_engine_cs;
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struct intel_ring;
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struct kref;
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/* At the start of the context image is its per-process HWS page */
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#define LRC_PPHWSP_PN (0)
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#define LRC_PPHWSP_SZ (1)
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/* After the PPHWSP we have the logical state for the context */
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#define LRC_STATE_PN (LRC_PPHWSP_PN + LRC_PPHWSP_SZ)
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#define LRC_STATE_OFFSET (LRC_STATE_PN * PAGE_SIZE)
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/* Space within PPHWSP reserved to be used as scratch */
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#define LRC_PPHWSP_SCRATCH 0x34
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#define LRC_PPHWSP_SCRATCH_ADDR (LRC_PPHWSP_SCRATCH * sizeof(u32))
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void lrc_init_wa_ctx(struct intel_engine_cs *engine);
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void lrc_fini_wa_ctx(struct intel_engine_cs *engine);
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int lrc_alloc(struct intel_context *ce,
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struct intel_engine_cs *engine);
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void lrc_reset(struct intel_context *ce);
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void lrc_fini(struct intel_context *ce);
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void lrc_destroy(struct kref *kref);
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int
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lrc_pre_pin(struct intel_context *ce,
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struct intel_engine_cs *engine,
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struct i915_gem_ww_ctx *ww,
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void **vaddr);
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int
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lrc_pin(struct intel_context *ce,
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struct intel_engine_cs *engine,
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void *vaddr);
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void lrc_unpin(struct intel_context *ce);
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void lrc_post_unpin(struct intel_context *ce);
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void lrc_init_state(struct intel_context *ce,
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struct intel_engine_cs *engine,
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void *state);
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void lrc_init_regs(const struct intel_context *ce,
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const struct intel_engine_cs *engine,
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bool clear);
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void lrc_reset_regs(const struct intel_context *ce,
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const struct intel_engine_cs *engine);
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u32 lrc_update_regs(const struct intel_context *ce,
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const struct intel_engine_cs *engine,
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u32 head);
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void lrc_update_offsets(struct intel_context *ce,
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struct intel_engine_cs *engine);
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void lrc_check_regs(const struct intel_context *ce,
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const struct intel_engine_cs *engine,
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const char *when);
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void lrc_update_runtime(struct intel_context *ce);
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enum {
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INTEL_ADVANCED_CONTEXT = 0,
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INTEL_LEGACY_32B_CONTEXT,
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INTEL_ADVANCED_AD_CONTEXT,
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INTEL_LEGACY_64B_CONTEXT
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};
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enum {
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FAULT_AND_HANG = 0,
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FAULT_AND_HALT, /* Debug only */
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FAULT_AND_STREAM,
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FAULT_AND_CONTINUE /* Unsupported */
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};
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#define CTX_GTT_ADDRESS_MASK GENMASK(31, 12)
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#define GEN8_CTX_VALID (1 << 0)
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#define GEN8_CTX_FORCE_PD_RESTORE (1 << 1)
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#define GEN8_CTX_FORCE_RESTORE (1 << 2)
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#define GEN8_CTX_L3LLC_COHERENT (1 << 5)
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#define GEN8_CTX_PRIVILEGE (1 << 8)
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#define GEN8_CTX_ADDRESSING_MODE_SHIFT 3
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#define GEN12_CTX_PRIORITY_MASK GENMASK(10, 9)
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#define GEN12_CTX_PRIORITY_HIGH FIELD_PREP(GEN12_CTX_PRIORITY_MASK, 2)
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#define GEN12_CTX_PRIORITY_NORMAL FIELD_PREP(GEN12_CTX_PRIORITY_MASK, 1)
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#define GEN12_CTX_PRIORITY_LOW FIELD_PREP(GEN12_CTX_PRIORITY_MASK, 0)
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#define GEN8_CTX_ID_SHIFT 32
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#define GEN8_CTX_ID_WIDTH 21
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#define GEN11_SW_CTX_ID_SHIFT 37
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#define GEN11_SW_CTX_ID_WIDTH 11
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#define GEN11_ENGINE_CLASS_SHIFT 61
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#define GEN11_ENGINE_CLASS_WIDTH 3
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#define GEN11_ENGINE_INSTANCE_SHIFT 48
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#define GEN11_ENGINE_INSTANCE_WIDTH 6
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#define XEHP_SW_CTX_ID_SHIFT 39
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#define XEHP_SW_CTX_ID_WIDTH 16
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#define XEHP_SW_COUNTER_SHIFT 58
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#define XEHP_SW_COUNTER_WIDTH 6
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#define GEN12_GUC_SW_CTX_ID_SHIFT 39
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#define GEN12_GUC_SW_CTX_ID_WIDTH 16
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static inline void lrc_runtime_start(struct intel_context *ce)
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{
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struct intel_context_stats *stats = &ce->stats;
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if (intel_context_is_barrier(ce))
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return;
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if (stats->active)
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return;
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WRITE_ONCE(stats->active, intel_context_clock());
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}
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static inline void lrc_runtime_stop(struct intel_context *ce)
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{
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struct intel_context_stats *stats = &ce->stats;
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if (!stats->active)
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return;
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lrc_update_runtime(ce);
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WRITE_ONCE(stats->active, 0);
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}
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#define DG2_PREDICATE_RESULT_WA (PAGE_SIZE - sizeof(u64))
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#define DG2_PREDICATE_RESULT_BB (2048)
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u32 lrc_indirect_bb(const struct intel_context *ce);
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#endif /* __INTEL_LRC_H__ */
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