Merge tag 'drm-intel-gt-next-2021-01-14' of git://anongit.freedesktop.org/drm/drm-intel into drm-next

UAPI Changes:
- Deprecate I915_PMU_LAST and optimize state tracking (Tvrtko)

  Avoid relying on last item ABI marker in i915_drm.h, add a
  comment to mark as deprecated.

Cross-subsystem Changes:

Core Changes:

Driver Changes:

- Restore clear residuals security mitigations for Ivybridge and
  Baytrail (Chris)
- Close #1858: Allow sysadmin to choose applied GPU security mitigations
  through i915.mitigations=... similar to CPU (Chris)
- Fix for #2024: GPU hangs on HSW GT1 (Chris)
- Fix for #2707: Driver hang when editing UVs in Blender (Chris, Ville)
- Fix for #2797: False positive GuC loading error message (Chris)
- Fix for #2859: Missing GuC firmware for older Cometlakes (Chris)
- Lessen probability of GPU hang due to DMAR faults [reason 7,
  next page table ptr is invalid] on Tigerlake (Chris)
- Fix REVID macros for TGL to fetch correct stepping (Aditya)
- Limit frequency drop to RPe on parking (Chris, Edward)
- Limit W/A 1406941453 to TGL, RKL and DG1 (Swathi)
- Make W/A 22010271021 permanent on DG1 (Lucas)
- Implement W/A 16011163337 to prevent a HS/DS hang on DG1 (Swathi)
- Only disable preemption on gen8 render engines (Chris)
- Disable arbitration around Braswell's PDP updates (Chris)
- Disable arbitration on no-preempt requests (Chris)
- Check for arbitration after writing start seqno before busywaiting (Chris)
- Retain default context state across shrinking (Venkata, CQ)
- Fix mismatch between misplaced vma check and vma insert for 32-bit
  addressing userspaces (Chris, CQ)
- Propagate error for vmap() failure instead kernel NULL deref (Chris)
- Propagate error from cancelled submit due to context closure
  immediately (Chris)
- Fix RCU race on HWSP tracking per request (Chris)
- Clear CMD parser shadow and GPU reloc batches (Matt A)

- Populate logical context during first pin (Maarten)
- Optimistically prune dma-resv from the shrinker (Chris)
- Fix for virtual engine ownership race (Chris)
- Remove timeslice suppression to restore fairness for virtual engines (Chris)
- Rearrange IVB/HSW workarounds properly between GT and engine (Chris)
- Taint the reset mutex with the shrinker (Chris)
- Replace direct submit with direct call to tasklet (Chris)
- Multiple corrections to virtual engine dequeue and breadcrumbs code (Chris)
- Avoid wakeref from potentially hard IRQ context in PMU (Tvrtko)
- Use raw clock for RC6 time estimation in PMU (Tvrtko)
- Differentiate OOM failures from invalid map types (Chris)
- Fix Gen9 to have 64 MOCS entries similar to Gen11 (Chris)
- Ignore repeated attempts to suspend request flow across reset (Chris)
- Remove livelock from "do_idle_maps" VT-d W/A (Chris)
- Cancel the preemption timeout early in case engine reset fails (Chris)
- Code flow optimization in the scheduling code (Chris)
- Clear the execlists timers upon reset (Chris)
- Drain the breadcrumbs just once (Chris, Matt A)
- Track the overall GT awake/busy time (Chris)
- Tweak submission tasklet flushing to avoid starvation (Chris)
- Track timelines created using the HWSP to restore on resume (Chris)
- Use cmpxchg64 for 32b compatilibity for active tracking (Chris)
- Prefer recycling an idle GGTT fence to avoid GPU wait (Chris)

- Restructure GT code organization for clearer split between GuC
  and execlists (Chris, Daniele, John, Matt A)
- Remove GuC code that will remain unused by new interfaces (Matt B)
- Restructure the CS timestamp clocks code to local to GT (Chris)
- Fix error return paths in perf code (Zhang)
- Replace idr_init() by idr_init_base() in perf (Deepak)
- Fix shmem_pin_map error path (Colin)
- Drop redundant free_work worker for GEM contexts (Chris, Mika)
- Increase readability and understandability of intel_workarounds.c (Lucas)
- Defer enabling the breadcrumb interrupt to after submission (Chris)
- Deal with buddy alloc block sizes beyond 4G (Venkata, Chris)
- Encode fence specific waitqueue behaviour into the wait.flags (Chris)
- Don't cancel the breadcrumb interrupt shadow too early (Chris)
- Cancel submitted requests upon context reset (Chris)
- Use correct locks in GuC code (Tvrtko)
- Prevent use of engine->wa_ctx after error (Chris, Matt R)

- Fix build warning on 32-bit (Arnd)
- Avoid memory leak if platform would have more than 16 W/A (Tvrtko)
- Avoid unnecessary #if CONFIG_PM in PMU code (Chris, Tvrtko)
- Improve debugging output (Chris, Tvrtko, Matt R)
- Make file local variables static (Jani)
- Avoid uint*_t types in i915 (Jani)
- Selftest improvements (Chris, Matt A, Dan)
- Documentation fixes (Chris, Jose)

Signed-off-by: Dave Airlie <airlied@redhat.com>

# Conflicts:
#	drivers/gpu/drm/i915/gt/intel_breadcrumbs.c
#	drivers/gpu/drm/i915/gt/intel_breadcrumbs_types.h
#	drivers/gpu/drm/i915/gt/intel_lrc.c
#	drivers/gpu/drm/i915/gvt/mmio_context.h
#	drivers/gpu/drm/i915/i915_drv.h
From: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210114152232.GA21588@jlahtine-mobl.ger.corp.intel.com

1 files changed, 61 insertions, 106 deletions

diff --git a/drivers/gpu/drm/i915/gt/intel_lrc.h b/drivers/gpu/drm/i915/gt/intel_lrc.h
index c2d287f25497..7f697845c4cf 100644
--- a/drivers/gpu/drm/i915/gt/intel_lrc.h
+++ b/drivers/gpu/drm/i915/gt/intel_lrc.h
@@ -1,90 +1,20 @@
+/* SPDX-License-Identifier: MIT */
 /*
  * Copyright © 2014 Intel Corporation
- *
- * 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 (including the next
- * paragraph) 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 _INTEL_LRC_H_
-#define _INTEL_LRC_H_
+#ifndef __INTEL_LRC_H__
+#define __INTEL_LRC_H__
 
 #include <linux/types.h>
 
-struct drm_printer;
+#include "intel_context.h"
+#include "intel_lrc_reg.h"
 
-struct drm_i915_private;
-struct i915_gem_context;
-struct i915_request;
-struct intel_context;
+struct drm_i915_gem_object;
 struct intel_engine_cs;
+struct intel_ring;
 
-/* Execlists regs */
-#define RING_ELSP(base)				_MMIO((base) + 0x230)
-#define RING_EXECLIST_STATUS_LO(base)		_MMIO((base) + 0x234)
-#define RING_EXECLIST_STATUS_HI(base)		_MMIO((base) + 0x234 + 4)
-#define RING_CONTEXT_CONTROL(base)		_MMIO((base) + 0x244)
-#define	  CTX_CTRL_INHIBIT_SYN_CTX_SWITCH	(1 << 3)
-#define	  CTX_CTRL_ENGINE_CTX_RESTORE_INHIBIT	(1 << 0)
-#define   CTX_CTRL_RS_CTX_ENABLE		(1 << 1)
-#define	  CTX_CTRL_ENGINE_CTX_SAVE_INHIBIT	(1 << 2)
-#define	  GEN12_CTX_CTRL_OAR_CONTEXT_ENABLE	(1 << 8)
-#define RING_CONTEXT_STATUS_PTR(base)		_MMIO((base) + 0x3a0)
-#define RING_EXECLIST_SQ_CONTENTS(base)		_MMIO((base) + 0x510)
-#define RING_EXECLIST_CONTROL(base)		_MMIO((base) + 0x550)
-
-#define	  EL_CTRL_LOAD				(1 << 0)
-
-/* The docs specify that the write pointer wraps around after 5h, "After status
- * is written out to the last available status QW at offset 5h, this pointer
- * wraps to 0."
- *
- * Therefore, one must infer than even though there are 3 bits available, 6 and
- * 7 appear to be * reserved.
- */
-#define GEN8_CSB_ENTRIES 6
-#define GEN8_CSB_PTR_MASK 0x7
-#define GEN8_CSB_READ_PTR_MASK (GEN8_CSB_PTR_MASK << 8)
-#define GEN8_CSB_WRITE_PTR_MASK (GEN8_CSB_PTR_MASK << 0)
-
-#define GEN11_CSB_ENTRIES 12
-#define GEN11_CSB_PTR_MASK 0xf
-#define GEN11_CSB_READ_PTR_MASK (GEN11_CSB_PTR_MASK << 8)
-#define GEN11_CSB_WRITE_PTR_MASK (GEN11_CSB_PTR_MASK << 0)
-
-#define MAX_CONTEXT_HW_ID (1<<21) /* exclusive */
-#define MAX_GUC_CONTEXT_HW_ID (1 << 20) /* exclusive */
-#define GEN11_MAX_CONTEXT_HW_ID (1<<11) /* exclusive */
-/* in Gen12 ID 0x7FF is reserved to indicate idle */
-#define GEN12_MAX_CONTEXT_HW_ID	(GEN11_MAX_CONTEXT_HW_ID - 1)
-
-enum {
-	INTEL_CONTEXT_SCHEDULE_IN = 0,
-	INTEL_CONTEXT_SCHEDULE_OUT,
-	INTEL_CONTEXT_SCHEDULE_PREEMPTED,
-};
-
-/* Logical Rings */
-void intel_logical_ring_cleanup(struct intel_engine_cs *engine);
-
-int intel_execlists_submission_setup(struct intel_engine_cs *engine);
-
-/* Logical Ring Contexts */
 /* At the start of the context image is its per-process HWS page */
 #define LRC_PPHWSP_PN	(0)
 #define LRC_PPHWSP_SZ	(1)
@@ -96,32 +26,57 @@ int intel_execlists_submission_setup(struct intel_engine_cs *engine);
 #define LRC_PPHWSP_SCRATCH		0x34
 #define LRC_PPHWSP_SCRATCH_ADDR		(LRC_PPHWSP_SCRATCH * sizeof(u32))
 
-void intel_execlists_set_default_submission(struct intel_engine_cs *engine);
-
-void intel_lr_context_reset(struct intel_engine_cs *engine,
-			    struct intel_context *ce,
-			    u32 head,
-			    bool scrub);
-
-void intel_execlists_show_requests(struct intel_engine_cs *engine,
-				   struct drm_printer *m,
-				   void (*show_request)(struct drm_printer *m,
-							struct i915_request *rq,
-							const char *prefix),
-				   unsigned int max);
-
-struct intel_context *
-intel_execlists_create_virtual(struct intel_engine_cs **siblings,
-			       unsigned int count);
-
-struct intel_context *
-intel_execlists_clone_virtual(struct intel_engine_cs *src);
-
-int intel_virtual_engine_attach_bond(struct intel_engine_cs *engine,
-				     const struct intel_engine_cs *master,
-				     const struct intel_engine_cs *sibling);
-
-bool
-intel_engine_in_execlists_submission_mode(const struct intel_engine_cs *engine);
-
-#endif /* _INTEL_LRC_H_ */
+void lrc_init_wa_ctx(struct intel_engine_cs *engine);
+void lrc_fini_wa_ctx(struct intel_engine_cs *engine);
+
+int lrc_alloc(struct intel_context *ce,
+	      struct intel_engine_cs *engine);
+void lrc_reset(struct intel_context *ce);
+void lrc_fini(struct intel_context *ce);
+void lrc_destroy(struct kref *kref);
+
+int
+lrc_pre_pin(struct intel_context *ce,
+	    struct intel_engine_cs *engine,
+	    struct i915_gem_ww_ctx *ww,
+	    void **vaddr);
+int
+lrc_pin(struct intel_context *ce,
+	struct intel_engine_cs *engine,
+	void *vaddr);
+void lrc_unpin(struct intel_context *ce);
+void lrc_post_unpin(struct intel_context *ce);
+
+void lrc_init_state(struct intel_context *ce,
+		    struct intel_engine_cs *engine,
+		    void *state);
+
+void lrc_init_regs(const struct intel_context *ce,
+		   const struct intel_engine_cs *engine,
+		   bool clear);
+void lrc_reset_regs(const struct intel_context *ce,
+		    const struct intel_engine_cs *engine);
+
+u32 lrc_update_regs(const struct intel_context *ce,
+		    const struct intel_engine_cs *engine,
+		    u32 head);
+void lrc_update_offsets(struct intel_context *ce,
+			struct intel_engine_cs *engine);
+
+void lrc_check_regs(const struct intel_context *ce,
+		    const struct intel_engine_cs *engine,
+		    const char *when);
+
+void lrc_update_runtime(struct intel_context *ce);
+static inline u32 lrc_get_runtime(const struct intel_context *ce)
+{
+	/*
+	 * We can use either ppHWSP[16] which is recorded before the context
+	 * switch (and so excludes the cost of context switches) or use the
+	 * value from the context image itself, which is saved/restored earlier
+	 * and so includes the cost of the save.
+	 */
+	return READ_ONCE(ce->lrc_reg_state[CTX_TIMESTAMP]);
+}
+
+#endif /* __INTEL_LRC_H__ */