From 0c7dd53b84def4fbbba907bef3d32a5171b617a5 Mon Sep 17 00:00:00 2001 From: Daniel Vetter Date: Mon, 11 Aug 2014 16:17:44 +0200 Subject: [PATCH] drm/i915/bdw: Add a context and an engine pointers to the ringbuffer Any given ringbuffer is unequivocally tied to one context and one engine. By setting the appropriate pointers to them, the ringbuffer struct holds all the infromation you might need to submit a workload for processing, Execlists style. v2: Drop ring->ctx since that looks terribly ill-defined for legacy ringbuffer submission. Signed-off-by: Oscar Mateo (v1) Acked-by: Damien Lespiau (v2) Signed-off-by: Daniel Vetter --- drivers/gpu/drm/i915/intel_lrc.c | 1 + drivers/gpu/drm/i915/intel_ringbuffer.c | 1 + drivers/gpu/drm/i915/intel_ringbuffer.h | 2 ++ 3 files changed, 4 insertions(+) diff --git a/drivers/gpu/drm/i915/intel_lrc.c b/drivers/gpu/drm/i915/intel_lrc.c index 0c80bb1f5420..8f2d14da6228 100644 --- a/drivers/gpu/drm/i915/intel_lrc.c +++ b/drivers/gpu/drm/i915/intel_lrc.c @@ -134,6 +134,7 @@ int intel_lr_context_deferred_create(struct intel_context *ctx, return ret; } + ringbuf->ring = ring; ringbuf->size = 32 * PAGE_SIZE; ringbuf->effective_size = ringbuf->size; ringbuf->head = 0; diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.c b/drivers/gpu/drm/i915/intel_ringbuffer.c index 064652034d7e..c35f956ed6a0 100644 --- a/drivers/gpu/drm/i915/intel_ringbuffer.c +++ b/drivers/gpu/drm/i915/intel_ringbuffer.c @@ -1594,6 +1594,7 @@ static int intel_init_ring_buffer(struct drm_device *dev, INIT_LIST_HEAD(&ring->active_list); INIT_LIST_HEAD(&ring->request_list); ringbuf->size = 32 * PAGE_SIZE; + ringbuf->ring = ring; memset(ring->semaphore.sync_seqno, 0, sizeof(ring->semaphore.sync_seqno)); init_waitqueue_head(&ring->irq_queue); diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.h b/drivers/gpu/drm/i915/intel_ringbuffer.h index 669cc7527f9a..fe9d9d9d3598 100644 --- a/drivers/gpu/drm/i915/intel_ringbuffer.h +++ b/drivers/gpu/drm/i915/intel_ringbuffer.h @@ -90,6 +90,8 @@ struct intel_ringbuffer { struct drm_i915_gem_object *obj; void __iomem *virtual_start; + struct intel_engine_cs *ring; + u32 head; u32 tail; int space; -- 2.39.5