aboutsummaryrefslogtreecommitdiff
path: root/drivers/gpu/drm/i915/gt/intel_engine.h
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/gpu/drm/i915/gt/intel_engine.h')
-rw-r--r--drivers/gpu/drm/i915/gt/intel_engine.h509
1 files changed, 142 insertions, 367 deletions
diff --git a/drivers/gpu/drm/i915/gt/intel_engine.h b/drivers/gpu/drm/i915/gt/intel_engine.h
index 2f1c6871ee95..1431f1e9dbee 100644
--- a/drivers/gpu/drm/i915/gt/intel_engine.h
+++ b/drivers/gpu/drm/i915/gt/intel_engine.h
@@ -2,24 +2,27 @@
#ifndef _INTEL_RINGBUFFER_H_
#define _INTEL_RINGBUFFER_H_
+#include <asm/cacheflush.h>
#include <drm/drm_util.h>
+#include <drm/drm_cache.h>
#include <linux/hashtable.h>
#include <linux/irq_work.h>
#include <linux/random.h>
#include <linux/seqlock.h>
-#include "i915_gem_batch_pool.h"
#include "i915_pmu.h"
-#include "i915_reg.h"
#include "i915_request.h"
#include "i915_selftest.h"
-#include "i915_timeline.h"
#include "intel_engine_types.h"
-#include "intel_gpu_commands.h"
+#include "intel_gt_types.h"
+#include "intel_timeline.h"
#include "intel_workarounds.h"
struct drm_printer;
+struct intel_context;
+struct intel_gt;
+struct lock_class_key;
/* Early gen2 devices have a cacheline of just 32 bytes, using 64 is overkill,
* but keeps the logic simple. Indeed, the whole purpose of this macro is just
@@ -29,6 +32,13 @@ struct drm_printer;
#define CACHELINE_BYTES 64
#define CACHELINE_DWORDS (CACHELINE_BYTES / sizeof(u32))
+#define ENGINE_TRACE(e, fmt, ...) do { \
+ const struct intel_engine_cs *e__ __maybe_unused = (e); \
+ GEM_TRACE("%s %s: " fmt, \
+ dev_name(e__->i915->drm.dev), e__->name, \
+ ##__VA_ARGS__); \
+} while (0)
+
/*
* The register defines to be used with the following macros need to accept a
* base param, e.g:
@@ -51,7 +61,7 @@ struct drm_printer;
#define ENGINE_READ16(...) __ENGINE_READ_OP(read16, __VA_ARGS__)
#define ENGINE_READ(...) __ENGINE_READ_OP(read, __VA_ARGS__)
#define ENGINE_READ_FW(...) __ENGINE_READ_OP(read_fw, __VA_ARGS__)
-#define ENGINE_POSTING_READ(...) __ENGINE_READ_OP(posting_read, __VA_ARGS__)
+#define ENGINE_POSTING_READ(...) __ENGINE_READ_OP(posting_read_fw, __VA_ARGS__)
#define ENGINE_POSTING_READ16(...) __ENGINE_READ_OP(posting_read16, __VA_ARGS__)
#define ENGINE_READ64(engine__, lower_reg__, upper_reg__) \
@@ -90,84 +100,6 @@ struct drm_printer;
/* seqno size is actually only a uint32, but since we plan to use MI_FLUSH_DW to
* do the writes, and that must have qw aligned offsets, simply pretend it's 8b.
*/
-enum intel_engine_hangcheck_action {
- ENGINE_IDLE = 0,
- ENGINE_WAIT,
- ENGINE_ACTIVE_SEQNO,
- ENGINE_ACTIVE_HEAD,
- ENGINE_ACTIVE_SUBUNITS,
- ENGINE_WAIT_KICK,
- ENGINE_DEAD,
-};
-
-static inline const char *
-hangcheck_action_to_str(const enum intel_engine_hangcheck_action a)
-{
- switch (a) {
- case ENGINE_IDLE:
- return "idle";
- case ENGINE_WAIT:
- return "wait";
- case ENGINE_ACTIVE_SEQNO:
- return "active seqno";
- case ENGINE_ACTIVE_HEAD:
- return "active head";
- case ENGINE_ACTIVE_SUBUNITS:
- return "active subunits";
- case ENGINE_WAIT_KICK:
- return "wait kick";
- case ENGINE_DEAD:
- return "dead";
- }
-
- return "unknown";
-}
-
-void intel_engines_set_scheduler_caps(struct drm_i915_private *i915);
-
-static inline void
-execlists_set_active(struct intel_engine_execlists *execlists,
- unsigned int bit)
-{
- __set_bit(bit, (unsigned long *)&execlists->active);
-}
-
-static inline bool
-execlists_set_active_once(struct intel_engine_execlists *execlists,
- unsigned int bit)
-{
- return !__test_and_set_bit(bit, (unsigned long *)&execlists->active);
-}
-
-static inline void
-execlists_clear_active(struct intel_engine_execlists *execlists,
- unsigned int bit)
-{
- __clear_bit(bit, (unsigned long *)&execlists->active);
-}
-
-static inline void
-execlists_clear_all_active(struct intel_engine_execlists *execlists)
-{
- execlists->active = 0;
-}
-
-static inline bool
-execlists_is_active(const struct intel_engine_execlists *execlists,
- unsigned int bit)
-{
- return test_bit(bit, (unsigned long *)&execlists->active);
-}
-
-void execlists_user_begin(struct intel_engine_execlists *execlists,
- const struct execlist_port *port);
-void execlists_user_end(struct intel_engine_execlists *execlists);
-
-void
-execlists_cancel_port_requests(struct intel_engine_execlists * const execlists);
-
-struct i915_request *
-execlists_unwind_incomplete_requests(struct intel_engine_execlists *execlists);
static inline unsigned int
execlists_num_ports(const struct intel_engine_execlists * const execlists)
@@ -175,21 +107,28 @@ execlists_num_ports(const struct intel_engine_execlists * const execlists)
return execlists->port_mask + 1;
}
-static inline struct execlist_port *
-execlists_port_complete(struct intel_engine_execlists * const execlists,
- struct execlist_port * const port)
+static inline struct i915_request *
+execlists_active(const struct intel_engine_execlists *execlists)
{
- const unsigned int m = execlists->port_mask;
+ struct i915_request * const *cur, * const *old, *active;
- GEM_BUG_ON(port_index(port, execlists) != 0);
- GEM_BUG_ON(!execlists_is_active(execlists, EXECLISTS_ACTIVE_USER));
+ cur = READ_ONCE(execlists->active);
+ smp_rmb(); /* pairs with overwrite protection in process_csb() */
+ do {
+ old = cur;
- memmove(port, port + 1, m * sizeof(struct execlist_port));
- memset(port + m, 0, sizeof(struct execlist_port));
+ active = READ_ONCE(*cur);
+ cur = READ_ONCE(execlists->active);
- return port;
+ smp_rmb(); /* and complete the seqlock retry */
+ } while (unlikely(cur != old));
+
+ return active;
}
+struct i915_request *
+execlists_unwind_incomplete_requests(struct intel_engine_execlists *execlists);
+
static inline u32
intel_read_status_page(const struct intel_engine_cs *engine, int reg)
{
@@ -205,15 +144,9 @@ intel_write_status_page(struct intel_engine_cs *engine, int reg, u32 value)
* of extra paranoia to try and ensure that the HWS takes the value
* we give and that it doesn't end up trapped inside the CPU!
*/
- if (static_cpu_has(X86_FEATURE_CLFLUSH)) {
- mb();
- clflush(&engine->status_page.addr[reg]);
- engine->status_page.addr[reg] = value;
- clflush(&engine->status_page.addr[reg]);
- mb();
- } else {
- WRITE_ONCE(engine->status_page.addr[reg], value);
- }
+ drm_clflush_virt_range(&engine->status_page.addr[reg], sizeof(value));
+ WRITE_ONCE(engine->status_page.addr[reg], value);
+ drm_clflush_virt_range(&engine->status_page.addr[reg], sizeof(value));
}
/*
@@ -236,141 +169,34 @@ intel_write_status_page(struct intel_engine_cs *engine, int reg, u32 value)
#define I915_GEM_HWS_PREEMPT_ADDR (I915_GEM_HWS_PREEMPT * sizeof(u32))
#define I915_GEM_HWS_SEQNO 0x40
#define I915_GEM_HWS_SEQNO_ADDR (I915_GEM_HWS_SEQNO * sizeof(u32))
+#define I915_GEM_HWS_MIGRATE (0x42 * sizeof(u32))
+#define I915_GEM_HWS_PXP 0x60
+#define I915_GEM_HWS_PXP_ADDR (I915_GEM_HWS_PXP * sizeof(u32))
#define I915_GEM_HWS_SCRATCH 0x80
-#define I915_GEM_HWS_SCRATCH_ADDR (I915_GEM_HWS_SCRATCH * sizeof(u32))
#define I915_HWS_CSB_BUF0_INDEX 0x10
#define I915_HWS_CSB_WRITE_INDEX 0x1f
-#define CNL_HWS_CSB_WRITE_INDEX 0x2f
-
-struct intel_ring *
-intel_engine_create_ring(struct intel_engine_cs *engine,
- struct i915_timeline *timeline,
- int size);
-int intel_ring_pin(struct intel_ring *ring);
-void intel_ring_reset(struct intel_ring *ring, u32 tail);
-unsigned int intel_ring_update_space(struct intel_ring *ring);
-void intel_ring_unpin(struct intel_ring *ring);
-void intel_ring_free(struct kref *ref);
-
-static inline struct intel_ring *intel_ring_get(struct intel_ring *ring)
-{
- kref_get(&ring->ref);
- return ring;
-}
-
-static inline void intel_ring_put(struct intel_ring *ring)
-{
- kref_put(&ring->ref, intel_ring_free);
-}
+#define ICL_HWS_CSB_WRITE_INDEX 0x2f
+#define INTEL_HWS_CSB_WRITE_INDEX(__i915) \
+ (GRAPHICS_VER(__i915) >= 11 ? ICL_HWS_CSB_WRITE_INDEX : I915_HWS_CSB_WRITE_INDEX)
void intel_engine_stop(struct intel_engine_cs *engine);
void intel_engine_cleanup(struct intel_engine_cs *engine);
-int __must_check intel_ring_cacheline_align(struct i915_request *rq);
+int intel_engines_init_mmio(struct intel_gt *gt);
+int intel_engines_init(struct intel_gt *gt);
-u32 __must_check *intel_ring_begin(struct i915_request *rq, unsigned int n);
-
-static inline void intel_ring_advance(struct i915_request *rq, u32 *cs)
-{
- /* Dummy function.
- *
- * This serves as a placeholder in the code so that the reader
- * can compare against the preceding intel_ring_begin() and
- * check that the number of dwords emitted matches the space
- * reserved for the command packet (i.e. the value passed to
- * intel_ring_begin()).
- */
- GEM_BUG_ON((rq->ring->vaddr + rq->ring->emit) != cs);
-}
+void intel_engine_free_request_pool(struct intel_engine_cs *engine);
-static inline u32 intel_ring_wrap(const struct intel_ring *ring, u32 pos)
-{
- return pos & (ring->size - 1);
-}
-
-static inline bool
-intel_ring_offset_valid(const struct intel_ring *ring,
- unsigned int pos)
-{
- if (pos & -ring->size) /* must be strictly within the ring */
- return false;
-
- if (!IS_ALIGNED(pos, 8)) /* must be qword aligned */
- return false;
-
- return true;
-}
-
-static inline u32 intel_ring_offset(const struct i915_request *rq, void *addr)
-{
- /* Don't write ring->size (equivalent to 0) as that hangs some GPUs. */
- u32 offset = addr - rq->ring->vaddr;
- GEM_BUG_ON(offset > rq->ring->size);
- return intel_ring_wrap(rq->ring, offset);
-}
-
-static inline void
-assert_ring_tail_valid(const struct intel_ring *ring, unsigned int tail)
-{
- GEM_BUG_ON(!intel_ring_offset_valid(ring, tail));
-
- /*
- * "Ring Buffer Use"
- * Gen2 BSpec "1. Programming Environment" / 1.4.4.6
- * Gen3 BSpec "1c Memory Interface Functions" / 2.3.4.5
- * Gen4+ BSpec "1c Memory Interface and Command Stream" / 5.3.4.5
- * "If the Ring Buffer Head Pointer and the Tail Pointer are on the
- * same cacheline, the Head Pointer must not be greater than the Tail
- * Pointer."
- *
- * We use ring->head as the last known location of the actual RING_HEAD,
- * it may have advanced but in the worst case it is equally the same
- * as ring->head and so we should never program RING_TAIL to advance
- * into the same cacheline as ring->head.
- */
-#define cacheline(a) round_down(a, CACHELINE_BYTES)
- GEM_BUG_ON(cacheline(tail) == cacheline(ring->head) &&
- tail < ring->head);
-#undef cacheline
-}
-
-static inline unsigned int
-intel_ring_set_tail(struct intel_ring *ring, unsigned int tail)
-{
- /* Whilst writes to the tail are strictly order, there is no
- * serialisation between readers and the writers. The tail may be
- * read by i915_request_retire() just as it is being updated
- * by execlists, as although the breadcrumb is complete, the context
- * switch hasn't been seen.
- */
- assert_ring_tail_valid(ring, tail);
- ring->tail = tail;
- return tail;
-}
-
-static inline unsigned int
-__intel_ring_space(unsigned int head, unsigned int tail, unsigned int size)
-{
- /*
- * "If the Ring Buffer Head Pointer and the Tail Pointer are on the
- * same cacheline, the Head Pointer must not be greater than the Tail
- * Pointer."
- */
- GEM_BUG_ON(!is_power_of_2(size));
- return (head - tail - CACHELINE_BYTES) & (size - 1);
-}
-
-int intel_engines_init_mmio(struct drm_i915_private *i915);
-int intel_engines_setup(struct drm_i915_private *i915);
-int intel_engines_init(struct drm_i915_private *i915);
-void intel_engines_cleanup(struct drm_i915_private *i915);
+void intel_engines_release(struct intel_gt *gt);
+void intel_engines_free(struct intel_gt *gt);
int intel_engine_init_common(struct intel_engine_cs *engine);
void intel_engine_cleanup_common(struct intel_engine_cs *engine);
+int intel_engine_resume(struct intel_engine_cs *engine);
+
int intel_ring_submission_setup(struct intel_engine_cs *engine);
-int intel_ring_submission_init(struct intel_engine_cs *engine);
int intel_engine_stop_cs(struct intel_engine_cs *engine);
void intel_engine_cancel_stop_cs(struct intel_engine_cs *engine);
@@ -380,95 +206,32 @@ void intel_engine_set_hwsp_writemask(struct intel_engine_cs *engine, u32 mask);
u64 intel_engine_get_active_head(const struct intel_engine_cs *engine);
u64 intel_engine_get_last_batch_head(const struct intel_engine_cs *engine);
-void intel_engine_get_instdone(struct intel_engine_cs *engine,
+void intel_engine_get_instdone(const struct intel_engine_cs *engine,
struct intel_instdone *instdone);
void intel_engine_init_execlists(struct intel_engine_cs *engine);
-void intel_engine_init_breadcrumbs(struct intel_engine_cs *engine);
-void intel_engine_fini_breadcrumbs(struct intel_engine_cs *engine);
+bool intel_engine_irq_enable(struct intel_engine_cs *engine);
+void intel_engine_irq_disable(struct intel_engine_cs *engine);
-void intel_engine_pin_breadcrumbs_irq(struct intel_engine_cs *engine);
-void intel_engine_unpin_breadcrumbs_irq(struct intel_engine_cs *engine);
-
-void intel_engine_signal_breadcrumbs(struct intel_engine_cs *engine);
-void intel_engine_disarm_breadcrumbs(struct intel_engine_cs *engine);
-
-static inline void
-intel_engine_queue_breadcrumbs(struct intel_engine_cs *engine)
+static inline void __intel_engine_reset(struct intel_engine_cs *engine,
+ bool stalled)
{
- irq_work_queue(&engine->breadcrumbs.irq_work);
-}
-
-void intel_engine_breadcrumbs_irq(struct intel_engine_cs *engine);
-
-void intel_engine_reset_breadcrumbs(struct intel_engine_cs *engine);
-void intel_engine_fini_breadcrumbs(struct intel_engine_cs *engine);
-
-void intel_engine_print_breadcrumbs(struct intel_engine_cs *engine,
- struct drm_printer *p);
-
-static inline u32 *gen8_emit_pipe_control(u32 *batch, u32 flags, u32 offset)
-{
- memset(batch, 0, 6 * sizeof(u32));
-
- batch[0] = GFX_OP_PIPE_CONTROL(6);
- batch[1] = flags;
- batch[2] = offset;
-
- return batch + 6;
-}
-
-static inline u32 *
-gen8_emit_ggtt_write_rcs(u32 *cs, u32 value, u32 gtt_offset, u32 flags)
-{
- /* We're using qword write, offset should be aligned to 8 bytes. */
- GEM_BUG_ON(!IS_ALIGNED(gtt_offset, 8));
-
- /* w/a for post sync ops following a GPGPU operation we
- * need a prior CS_STALL, which is emitted by the flush
- * following the batch.
- */
- *cs++ = GFX_OP_PIPE_CONTROL(6);
- *cs++ = flags | PIPE_CONTROL_QW_WRITE | PIPE_CONTROL_GLOBAL_GTT_IVB;
- *cs++ = gtt_offset;
- *cs++ = 0;
- *cs++ = value;
- /* We're thrashing one dword of HWS. */
- *cs++ = 0;
-
- return cs;
+ if (engine->reset.rewind)
+ engine->reset.rewind(engine, stalled);
+ engine->serial++; /* contexts lost */
}
-static inline u32 *
-gen8_emit_ggtt_write(u32 *cs, u32 value, u32 gtt_offset, u32 flags)
-{
- /* w/a: bit 5 needs to be zero for MI_FLUSH_DW address. */
- GEM_BUG_ON(gtt_offset & (1 << 5));
- /* Offset should be aligned to 8 bytes for both (QW/DW) write types */
- GEM_BUG_ON(!IS_ALIGNED(gtt_offset, 8));
-
- *cs++ = (MI_FLUSH_DW + 1) | MI_FLUSH_DW_OP_STOREDW | flags;
- *cs++ = gtt_offset | MI_FLUSH_DW_USE_GTT;
- *cs++ = 0;
- *cs++ = value;
-
- return cs;
-}
+bool intel_engines_are_idle(struct intel_gt *gt);
+bool intel_engine_is_idle(struct intel_engine_cs *engine);
-static inline void intel_engine_reset(struct intel_engine_cs *engine,
- bool stalled)
+void __intel_engine_flush_submission(struct intel_engine_cs *engine, bool sync);
+static inline void intel_engine_flush_submission(struct intel_engine_cs *engine)
{
- if (engine->reset.reset)
- engine->reset.reset(engine, stalled);
- engine->serial++; /* contexts lost */
+ __intel_engine_flush_submission(engine, true);
}
-bool intel_engine_is_idle(struct intel_engine_cs *engine);
-bool intel_engines_are_idle(struct drm_i915_private *dev_priv);
-
-void intel_engines_reset_default_submission(struct drm_i915_private *i915);
-unsigned int intel_engines_has_context_isolation(struct drm_i915_private *i915);
+void intel_engines_reset_default_submission(struct intel_gt *gt);
bool intel_engine_can_store_dword(struct intel_engine_cs *engine);
@@ -476,99 +239,111 @@ __printf(3, 4)
void intel_engine_dump(struct intel_engine_cs *engine,
struct drm_printer *m,
const char *header, ...);
+void intel_engine_dump_active_requests(struct list_head *requests,
+ struct i915_request *hung_rq,
+ struct drm_printer *m);
-struct intel_engine_cs *
-intel_engine_lookup_user(struct drm_i915_private *i915, u8 class, u8 instance);
+ktime_t intel_engine_get_busy_time(struct intel_engine_cs *engine,
+ ktime_t *now);
-static inline void intel_engine_context_in(struct intel_engine_cs *engine)
-{
- unsigned long flags;
+struct i915_request *
+intel_engine_execlist_find_hung_request(struct intel_engine_cs *engine);
- if (READ_ONCE(engine->stats.enabled) == 0)
- return;
+u32 intel_engine_context_size(struct intel_gt *gt, u8 class);
+struct intel_context *
+intel_engine_create_pinned_context(struct intel_engine_cs *engine,
+ struct i915_address_space *vm,
+ unsigned int ring_size,
+ unsigned int hwsp,
+ struct lock_class_key *key,
+ const char *name);
- write_seqlock_irqsave(&engine->stats.lock, flags);
+void intel_engine_destroy_pinned_context(struct intel_context *ce);
- if (engine->stats.enabled > 0) {
- if (engine->stats.active++ == 0)
- engine->stats.start = ktime_get();
- GEM_BUG_ON(engine->stats.active == 0);
- }
+void xehp_enable_ccs_engines(struct intel_engine_cs *engine);
- write_sequnlock_irqrestore(&engine->stats.lock, flags);
-}
+#define ENGINE_PHYSICAL 0
+#define ENGINE_MOCK 1
+#define ENGINE_VIRTUAL 2
-static inline void intel_engine_context_out(struct intel_engine_cs *engine)
+static inline bool intel_engine_uses_guc(const struct intel_engine_cs *engine)
{
- unsigned long flags;
-
- if (READ_ONCE(engine->stats.enabled) == 0)
- return;
-
- write_seqlock_irqsave(&engine->stats.lock, flags);
-
- if (engine->stats.enabled > 0) {
- ktime_t last;
-
- if (engine->stats.active && --engine->stats.active == 0) {
- /*
- * Decrement the active context count and in case GPU
- * is now idle add up to the running total.
- */
- last = ktime_sub(ktime_get(), engine->stats.start);
-
- engine->stats.total = ktime_add(engine->stats.total,
- last);
- } else if (engine->stats.active == 0) {
- /*
- * After turning on engine stats, context out might be
- * the first event in which case we account from the
- * time stats gathering was turned on.
- */
- last = ktime_sub(ktime_get(), engine->stats.enabled_at);
-
- engine->stats.total = ktime_add(engine->stats.total,
- last);
- }
- }
-
- write_sequnlock_irqrestore(&engine->stats.lock, flags);
+ return engine->gt->submission_method >= INTEL_SUBMISSION_GUC;
}
-int intel_enable_engine_stats(struct intel_engine_cs *engine);
-void intel_disable_engine_stats(struct intel_engine_cs *engine);
+static inline bool
+intel_engine_has_preempt_reset(const struct intel_engine_cs *engine)
+{
+ if (!CONFIG_DRM_I915_PREEMPT_TIMEOUT)
+ return false;
+
+ return intel_engine_has_preemption(engine);
+}
-ktime_t intel_engine_get_busy_time(struct intel_engine_cs *engine);
+#define FORCE_VIRTUAL BIT(0)
+struct intel_context *
+intel_engine_create_virtual(struct intel_engine_cs **siblings,
+ unsigned int count, unsigned long flags);
-struct i915_request *
-intel_engine_find_active_request(struct intel_engine_cs *engine);
+static inline struct intel_context *
+intel_engine_create_parallel(struct intel_engine_cs **engines,
+ unsigned int num_engines,
+ unsigned int width)
+{
+ GEM_BUG_ON(!engines[0]->cops->create_parallel);
+ return engines[0]->cops->create_parallel(engines, num_engines, width);
+}
-u32 intel_engine_context_size(struct drm_i915_private *i915, u8 class);
+static inline bool
+intel_virtual_engine_has_heartbeat(const struct intel_engine_cs *engine)
+{
+ /*
+ * For non-GuC submission we expect the back-end to look at the
+ * heartbeat status of the actual physical engine that the work
+ * has been (or is being) scheduled on, so we should only reach
+ * here with GuC submission enabled.
+ */
+ GEM_BUG_ON(!intel_engine_uses_guc(engine));
-#if IS_ENABLED(CONFIG_DRM_I915_SELFTEST)
+ return intel_guc_virtual_engine_has_heartbeat(engine);
+}
-static inline bool inject_preempt_hang(struct intel_engine_execlists *execlists)
+static inline bool
+intel_engine_has_heartbeat(const struct intel_engine_cs *engine)
{
- if (!execlists->preempt_hang.inject_hang)
+ if (!CONFIG_DRM_I915_HEARTBEAT_INTERVAL)
return false;
- complete(&execlists->preempt_hang.completion);
- return true;
+ if (intel_engine_is_virtual(engine))
+ return intel_virtual_engine_has_heartbeat(engine);
+ else
+ return READ_ONCE(engine->props.heartbeat_interval_ms);
}
-#else
+static inline struct intel_engine_cs *
+intel_engine_get_sibling(struct intel_engine_cs *engine, unsigned int sibling)
+{
+ GEM_BUG_ON(!intel_engine_is_virtual(engine));
+ return engine->cops->get_sibling(engine, sibling);
+}
-static inline bool inject_preempt_hang(struct intel_engine_execlists *execlists)
+static inline void
+intel_engine_set_hung_context(struct intel_engine_cs *engine,
+ struct intel_context *ce)
{
- return false;
+ engine->hung_ce = ce;
}
-#endif
+static inline void
+intel_engine_clear_hung_context(struct intel_engine_cs *engine)
+{
+ intel_engine_set_hung_context(engine, NULL);
+}
-void intel_engine_init_active(struct intel_engine_cs *engine,
- unsigned int subclass);
-#define ENGINE_PHYSICAL 0
-#define ENGINE_MOCK 1
-#define ENGINE_VIRTUAL 2
+static inline struct intel_context *
+intel_engine_get_hung_context(struct intel_engine_cs *engine)
+{
+ return engine->hung_ce;
+}
#endif /* _INTEL_RINGBUFFER_H_ */