From mboxrd@z Thu Jan 1 00:00:00 1970 From: oscar.mateo@intel.com Subject: [PATCH 22/53] drm/i915: Make ring_space more generic and outside accesible Date: Fri, 13 Jun 2014 16:37:40 +0100 Message-ID: <1402673891-14618-23-git-send-email-oscar.mateo@intel.com> References: <1402673891-14618-1-git-send-email-oscar.mateo@intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Received: from mga01.intel.com (mga01.intel.com [192.55.52.88]) by gabe.freedesktop.org (Postfix) with ESMTP id 258C56EA4D for ; Fri, 13 Jun 2014 08:43:14 -0700 (PDT) In-Reply-To: <1402673891-14618-1-git-send-email-oscar.mateo@intel.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" To: intel-gfx@lists.freedesktop.org List-Id: intel-gfx@lists.freedesktop.org From: Oscar Mateo I want to reuse it from the new logical ring code (as it seems innocent enough). Signed-off-by: Oscar Mateo --- drivers/gpu/drm/i915/intel_ringbuffer.c | 26 ++++++-------------------- drivers/gpu/drm/i915/intel_ringbuffer.h | 13 +++++++++++++ 2 files changed, 19 insertions(+), 20 deletions(-) diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.c b/drivers/gpu/drm/i915/intel_ringbuffer.c index 254e4c5..249804c 100644 --- a/drivers/gpu/drm/i915/intel_ringbuffer.c +++ b/drivers/gpu/drm/i915/intel_ringbuffer.c @@ -57,20 +57,6 @@ intel_ring_initialized(struct intel_engine_cs *ring) return ring->buffer && ring->buffer->obj; } -static inline int __ring_space(int head, int tail, int size) -{ - int space = head - (tail + I915_RING_FREE_SPACE); - if (space < 0) - space += size; - return space; -} - -static inline int ring_space(struct intel_engine_cs *ring) -{ - struct intel_ringbuffer *ringbuf = ring->buffer; - return __ring_space(ringbuf->head & HEAD_ADDR, ringbuf->tail, ringbuf->size); -} - static bool intel_ring_stopped(struct intel_engine_cs *ring) { struct drm_i915_private *dev_priv = ring->dev->dev_private; @@ -562,7 +548,7 @@ static int init_ring_common(struct intel_engine_cs *ring) else { ringbuf->head = I915_READ_HEAD(ring); ringbuf->tail = I915_READ_TAIL(ring) & TAIL_ADDR; - ringbuf->space = ring_space(ring); + ringbuf->space = intel_ring_space(ringbuf); ringbuf->last_retired_head = -1; } @@ -1554,13 +1540,13 @@ static int intel_ring_wait_request(struct intel_engine_cs *ring, int n) ringbuf->head = ringbuf->last_retired_head; ringbuf->last_retired_head = -1; - ringbuf->space = ring_space(ring); + ringbuf->space = intel_ring_space(ringbuf); if (ringbuf->space >= n) return 0; } list_for_each_entry(request, &ring->request_list, list) { - if (__ring_space(request->tail, ringbuf->tail, ringbuf->size) >= n) { + if (__intel_ring_space(request->tail, ringbuf->tail, ringbuf->size) >= n) { seqno = request->seqno; break; } @@ -1577,7 +1563,7 @@ static int intel_ring_wait_request(struct intel_engine_cs *ring, int n) ringbuf->head = ringbuf->last_retired_head; ringbuf->last_retired_head = -1; - ringbuf->space = ring_space(ring); + ringbuf->space = intel_ring_space(ringbuf); return 0; } @@ -1606,7 +1592,7 @@ static int ring_wait_for_space(struct intel_engine_cs *ring, int n) trace_i915_ring_wait_begin(ring); do { ringbuf->head = I915_READ_HEAD(ring); - ringbuf->space = ring_space(ring); + ringbuf->space = intel_ring_space(ringbuf); if (ringbuf->space >= n) { ret = 0; break; @@ -1658,7 +1644,7 @@ static int intel_wrap_ring_buffer(struct intel_engine_cs *ring) iowrite32(MI_NOOP, virt++); ringbuf->tail = 0; - ringbuf->space = ring_space(ring); + ringbuf->space = intel_ring_space(ringbuf); return 0; } diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.h b/drivers/gpu/drm/i915/intel_ringbuffer.h index 42026a1..dc944fe 100644 --- a/drivers/gpu/drm/i915/intel_ringbuffer.h +++ b/drivers/gpu/drm/i915/intel_ringbuffer.h @@ -224,6 +224,19 @@ bool intel_ring_initialized(struct intel_engine_cs *ring); void intel_fini_pipe_control(struct intel_engine_cs *ring); int intel_init_pipe_control(struct intel_engine_cs *ring); +static inline int __intel_ring_space(int head, int tail, int size) +{ + int space = head - (tail + I915_RING_FREE_SPACE); + if (space < 0) + space += size; + return space; +} + +static inline int intel_ring_space(struct intel_ringbuffer *ringbuf) +{ + return __intel_ring_space(ringbuf->head & HEAD_ADDR, ringbuf->tail, ringbuf->size); +} + static inline unsigned intel_ring_flag(struct intel_engine_cs *ring) { -- 1.9.0