diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c index e35d0cc16e03c91364a6af604341fcf876ae7dbe..fbf26d6c7d255a275d98a928df36ba0209d88dd4 100644 --- a/drivers/gpu/drm/i915/i915_debugfs.c +++ b/drivers/gpu/drm/i915/i915_debugfs.c @@ -2043,15 +2043,13 @@ static void i915_dump_lrc_obj(struct seq_file *m, struct drm_i915_gem_object *ctx_obj = ctx->engine[engine->id].state; unsigned long ggtt_offset = 0; + seq_printf(m, "CONTEXT: %s %u\n", engine->name, ctx->hw_id); + if (ctx_obj == NULL) { - seq_printf(m, "Context on %s with no gem object\n", - engine->name); + seq_puts(m, "\tNot allocated\n"); return; } - seq_printf(m, "CONTEXT: %s %u\n", engine->name, - intel_execlists_ctx_id(ctx, engine)); - if (!i915_gem_obj_ggtt_bound(ctx_obj)) seq_puts(m, "\tNot bound in GGTT\n"); else @@ -2170,8 +2168,8 @@ static int i915_execlists(struct seq_file *m, void *data) seq_printf(m, "\t%d requests in queue\n", count); if (head_req) { - seq_printf(m, "\tHead request id: %u\n", - intel_execlists_ctx_id(head_req->ctx, engine)); + seq_printf(m, "\tHead request context: %u\n", + head_req->ctx->hw_id); seq_printf(m, "\tHead request tail: %u\n", head_req->tail); } diff --git a/drivers/gpu/drm/i915/intel_lrc.c b/drivers/gpu/drm/i915/intel_lrc.c index 21787419800187cff270ed4db89a700ddf8c842d..3baa458d45716532a10e8a7d7dc3bf638b9c603a 100644 --- a/drivers/gpu/drm/i915/intel_lrc.c +++ b/drivers/gpu/drm/i915/intel_lrc.c @@ -224,6 +224,7 @@ enum { FAULT_AND_CONTINUE /* Unsupported */ }; #define GEN8_CTX_ID_SHIFT 32 +#define GEN8_CTX_ID_WIDTH 21 #define GEN8_CTX_RCS_INDIRECT_CTX_OFFSET_DEFAULT 0x17 #define GEN9_CTX_RCS_INDIRECT_CTX_OFFSET_DEFAULT 0x26 @@ -307,7 +308,7 @@ logical_ring_init_platform_invariants(struct intel_engine_cs *engine) * This is what a descriptor looks like, from LSB to MSB: * bits 0-11: flags, GEN8_CTX_* (cached in ctx_desc_template) * bits 12-31: LRCA, GTT address of (the HWSP of) this context - * bits 32-52: ctx ID, a globally unique tag (the LRCA again!) + * bits 32-52: ctx ID, a globally unique tag * bits 53-54: mbz, reserved for use by hardware * bits 55-63: group ID, currently unused and set to 0 */ @@ -315,14 +316,14 @@ static void intel_lr_context_descriptor_update(struct intel_context *ctx, struct intel_engine_cs *engine) { - uint64_t lrca, desc; + u64 desc; - lrca = ctx->engine[engine->id].lrc_vma->node.start + - LRC_PPHWSP_PN * PAGE_SIZE; + BUILD_BUG_ON(MAX_CONTEXT_HW_ID > (1<ctx_desc_template; /* bits 0-11 */ - desc |= lrca; /* bits 12-31 */ - desc |= (lrca >> PAGE_SHIFT) << GEN8_CTX_ID_SHIFT; /* bits 32-52 */ + desc = engine->ctx_desc_template; /* bits 0-11 */ + desc |= ctx->engine[engine->id].lrc_vma->node.start + /* bits 12-31 */ + LRC_PPHWSP_PN * PAGE_SIZE; + desc |= (u64)ctx->hw_id << GEN8_CTX_ID_SHIFT; /* bits 32-52 */ ctx->engine[engine->id].lrc_desc = desc; } @@ -333,28 +334,6 @@ uint64_t intel_lr_context_descriptor(struct intel_context *ctx, return ctx->engine[engine->id].lrc_desc; } -/** - * intel_execlists_ctx_id() - get the Execlists Context ID - * @ctx: Context to get the ID for - * @ring: Engine to get the ID for - * - * Do not confuse with ctx->id! Unfortunately we have a name overload - * here: the old context ID we pass to userspace as a handler so that - * they can refer to a context, and the new context ID we pass to the - * ELSP so that the GPU can inform us of the context status via - * interrupts. - * - * The context ID is a portion of the context descriptor, so we can - * just extract the required part from the cached descriptor. - * - * Return: 20-bits globally unique context ID. - */ -u32 intel_execlists_ctx_id(struct intel_context *ctx, - struct intel_engine_cs *engine) -{ - return intel_lr_context_descriptor(ctx, engine) >> GEN8_CTX_ID_SHIFT; -} - static void execlists_elsp_write(struct drm_i915_gem_request *rq0, struct drm_i915_gem_request *rq1) { @@ -500,7 +479,7 @@ execlists_check_remove_request(struct intel_engine_cs *engine, u32 request_id) if (!head_req) return 0; - if (unlikely(intel_execlists_ctx_id(head_req->ctx, engine) != request_id)) + if (unlikely(head_req->ctx->hw_id != request_id)) return 0; WARN(head_req->elsp_submitted == 0, "Never submitted head request\n"); diff --git a/drivers/gpu/drm/i915/intel_lrc.h b/drivers/gpu/drm/i915/intel_lrc.h index 60a7385bc531639090ac2ced24b2eb6c4003680a..9510826f0d900b4a6e3bebdb0179c3a1c3a20af5 100644 --- a/drivers/gpu/drm/i915/intel_lrc.h +++ b/drivers/gpu/drm/i915/intel_lrc.h @@ -113,9 +113,6 @@ void intel_lr_context_reset(struct drm_i915_private *dev_priv, uint64_t intel_lr_context_descriptor(struct intel_context *ctx, struct intel_engine_cs *engine); -u32 intel_execlists_ctx_id(struct intel_context *ctx, - struct intel_engine_cs *engine); - /* Execlists */ int intel_sanitize_enable_execlists(struct drm_device *dev, int enable_execlists); struct i915_execbuffer_params;