From c2c7f240081da626ed9da6dc536306d2ad393c9a Mon Sep 17 00:00:00 2001 From: Dave Gordon Date: Wed, 13 Jul 2016 16:03:35 +0100 Subject: [PATCH] drm/i915: unify first-stage engine struct setup intel_lrc.c has a table of "logical rings" (meaning engines), while intel_ringbuffer.c has separately open-coded initialisation for each engine. We can deduplicate this somewhat by using the same first-stage engine-setup function for both modes. So here we expose the function that transfers information from the static table of (all) known engines to the dev_priv->engine array of engines available on this device (adjusting the names along the way) and then embed calls to it in both the LRC and the legacy-mode setup. Signed-off-by: Dave Gordon Reviewed-by: Chris Wilson Signed-off-by: Tvrtko Ursulin --- drivers/gpu/drm/i915/intel_lrc.c | 40 ++++++++++++++++--------- drivers/gpu/drm/i915/intel_ringbuffer.c | 40 +++++++------------------ drivers/gpu/drm/i915/intel_ringbuffer.h | 5 ++++ 3 files changed, 41 insertions(+), 44 deletions(-) diff --git a/drivers/gpu/drm/i915/intel_lrc.c b/drivers/gpu/drm/i915/intel_lrc.c index 70c699043d0e..1eb6d4608eff 100644 --- a/drivers/gpu/drm/i915/intel_lrc.c +++ b/drivers/gpu/drm/i915/intel_lrc.c @@ -1978,8 +1978,9 @@ logical_ring_default_vfuncs(struct intel_engine_cs *engine) } static inline void -logical_ring_default_irqs(struct intel_engine_cs *engine, unsigned shift) +logical_ring_default_irqs(struct intel_engine_cs *engine) { + unsigned shift = engine->irq_shift; engine->irq_enable_mask = GT_RENDER_USER_INTERRUPT << shift; engine->irq_keep_mask = GT_CONTEXT_SWITCH_INTERRUPT << shift; } @@ -2083,14 +2084,14 @@ static int logical_render_ring_init(struct intel_engine_cs *engine) return ret; } -static const struct logical_ring_info { +static const struct engine_info { const char *name; unsigned exec_id; unsigned guc_id; u32 mmio_base; unsigned irq_shift; int (*init)(struct intel_engine_cs *engine); -} logical_rings[] = { +} intel_engines[] = { [RCS] = { .name = "render ring", .exec_id = I915_EXEC_RENDER, @@ -2133,20 +2134,31 @@ static const struct logical_ring_info { }, }; -static struct intel_engine_cs * -logical_ring_setup(struct drm_i915_private *dev_priv, enum intel_engine_id id) +struct intel_engine_cs * +intel_engine_setup(struct drm_i915_private *dev_priv, + enum intel_engine_id id) { - const struct logical_ring_info *info = &logical_rings[id]; + const struct engine_info *info = &intel_engines[id]; struct intel_engine_cs *engine = &dev_priv->engine[id]; - enum forcewake_domains fw_domains; engine->id = id; + engine->i915 = dev_priv; engine->name = info->name; engine->exec_id = info->exec_id; - engine->guc_id = info->guc_id; + engine->hw_id = engine->guc_id = info->guc_id; engine->mmio_base = info->mmio_base; + engine->irq_shift = info->irq_shift; - engine->i915 = dev_priv; + return engine; +} + +static struct intel_engine_cs * +logical_ring_setup(struct drm_i915_private *dev_priv, enum intel_engine_id id) +{ + struct intel_engine_cs *engine; + enum forcewake_domains fw_domains; + + engine = intel_engine_setup(dev_priv, id); /* Intentionally left blank. */ engine->buffer = NULL; @@ -2176,7 +2188,7 @@ logical_ring_setup(struct drm_i915_private *dev_priv, enum intel_engine_id id) logical_ring_init_platform_invariants(engine); logical_ring_default_vfuncs(engine); - logical_ring_default_irqs(engine, info->irq_shift); + logical_ring_default_irqs(engine); intel_engine_init_hangcheck(engine); i915_gem_batch_pool_init(&dev_priv->drm, &engine->batch_pool); @@ -2205,14 +2217,14 @@ int intel_logical_rings_init(struct drm_device *dev) WARN_ON(INTEL_INFO(dev_priv)->ring_mask & GENMASK(sizeof(mask) * BITS_PER_BYTE - 1, I915_NUM_ENGINES)); - for (i = 0; i < ARRAY_SIZE(logical_rings); i++) { + for (i = 0; i < ARRAY_SIZE(intel_engines); i++) { if (!HAS_ENGINE(dev_priv, i)) continue; - if (!logical_rings[i].init) + if (!intel_engines[i].init) continue; - ret = logical_rings[i].init(logical_ring_setup(dev_priv, i)); + ret = intel_engines[i].init(logical_ring_setup(dev_priv, i)); if (ret) goto cleanup; @@ -2220,7 +2232,7 @@ int intel_logical_rings_init(struct drm_device *dev) } /* - * Catch failures to update logical_rings table when the new engines + * Catch failures to update intel_engines table when the new engines * are added to the driver by a warning and disabling the forgotten * engines. */ diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.c b/drivers/gpu/drm/i915/intel_ringbuffer.c index c8e77c082b21..6db194789f71 100644 --- a/drivers/gpu/drm/i915/intel_ringbuffer.c +++ b/drivers/gpu/drm/i915/intel_ringbuffer.c @@ -2839,14 +2839,10 @@ static void intel_ring_default_vfuncs(struct drm_i915_private *dev_priv, int intel_init_render_ring_buffer(struct drm_device *dev) { struct drm_i915_private *dev_priv = to_i915(dev); - struct intel_engine_cs *engine = &dev_priv->engine[RCS]; + struct intel_engine_cs *engine; int ret; - engine->name = "render ring"; - engine->id = RCS; - engine->exec_id = I915_EXEC_RENDER; - engine->hw_id = 0; - engine->mmio_base = RENDER_RING_BASE; + engine = intel_engine_setup(dev_priv, RCS); intel_ring_default_vfuncs(dev_priv, engine); @@ -2901,17 +2897,13 @@ int intel_init_render_ring_buffer(struct drm_device *dev) int intel_init_bsd_ring_buffer(struct drm_device *dev) { struct drm_i915_private *dev_priv = to_i915(dev); - struct intel_engine_cs *engine = &dev_priv->engine[VCS]; + struct intel_engine_cs *engine; - engine->name = "bsd ring"; - engine->id = VCS; - engine->exec_id = I915_EXEC_BSD; - engine->hw_id = 1; + engine = intel_engine_setup(dev_priv, VCS); intel_ring_default_vfuncs(dev_priv, engine); if (INTEL_GEN(dev_priv) >= 6) { - engine->mmio_base = GEN6_BSD_RING_BASE; /* gen6 bsd needs a special wa for tail updates */ if (IS_GEN6(dev_priv)) engine->write_tail = gen6_bsd_ring_write_tail; @@ -2939,13 +2931,9 @@ int intel_init_bsd_ring_buffer(struct drm_device *dev) int intel_init_bsd2_ring_buffer(struct drm_device *dev) { struct drm_i915_private *dev_priv = to_i915(dev); - struct intel_engine_cs *engine = &dev_priv->engine[VCS2]; + struct intel_engine_cs *engine; - engine->name = "bsd2 ring"; - engine->id = VCS2; - engine->exec_id = I915_EXEC_BSD; - engine->hw_id = 4; - engine->mmio_base = GEN8_BSD2_RING_BASE; + engine = intel_engine_setup(dev_priv, VCS2); intel_ring_default_vfuncs(dev_priv, engine); @@ -2959,13 +2947,9 @@ int intel_init_bsd2_ring_buffer(struct drm_device *dev) int intel_init_blt_ring_buffer(struct drm_device *dev) { struct drm_i915_private *dev_priv = to_i915(dev); - struct intel_engine_cs *engine = &dev_priv->engine[BCS]; + struct intel_engine_cs *engine; - engine->name = "blitter ring"; - engine->id = BCS; - engine->exec_id = I915_EXEC_BLT; - engine->hw_id = 2; - engine->mmio_base = BLT_RING_BASE; + engine = intel_engine_setup(dev_priv, BCS); intel_ring_default_vfuncs(dev_priv, engine); @@ -2982,13 +2966,9 @@ int intel_init_blt_ring_buffer(struct drm_device *dev) int intel_init_vebox_ring_buffer(struct drm_device *dev) { struct drm_i915_private *dev_priv = to_i915(dev); - struct intel_engine_cs *engine = &dev_priv->engine[VECS]; + struct intel_engine_cs *engine; - engine->name = "video enhancement ring"; - engine->id = VECS; - engine->exec_id = I915_EXEC_VEBOX; - engine->hw_id = 3; - engine->mmio_base = VEBOX_RING_BASE; + engine = intel_engine_setup(dev_priv, VECS); intel_ring_default_vfuncs(dev_priv, engine); diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.h b/drivers/gpu/drm/i915/intel_ringbuffer.h index 12cb7ed90014..f8eeb50868c3 100644 --- a/drivers/gpu/drm/i915/intel_ringbuffer.h +++ b/drivers/gpu/drm/i915/intel_ringbuffer.h @@ -147,6 +147,7 @@ struct intel_engine_cs { unsigned int hw_id; unsigned int guc_id; /* XXX same as hw_id? */ u32 mmio_base; + unsigned int irq_shift; struct intel_ringbuffer *buffer; struct list_head buffers; @@ -361,6 +362,10 @@ struct intel_engine_cs { u32 (*get_cmd_length_mask)(u32 cmd_header); }; +struct intel_engine_cs * +intel_engine_setup(struct drm_i915_private *dev_priv, + enum intel_engine_id id); + static inline bool intel_engine_initialized(const struct intel_engine_cs *engine) { -- 2.20.1