From bd00e73ede5933322e01fc9b32e91d85826ac1c2 Mon Sep 17 00:00:00 2001 From: Chris Wilson Date: Thu, 23 Mar 2017 23:00:00 +0000 Subject: [PATCH] drm/i915/guc: Refactor the retrieval of guc_process_desc MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit Move the common "client->vaddr + client->proc_desc_offset" to its own function, __get_process_desc() to match the newly established pattern. Signed-off-by: Chris Wilson Link: http://patchwork.freedesktop.org/patch/msgid/20170323230000.20786-1-chris@chris-wilson.co.uk Reviewed-by: Michał Winiarski --- drivers/gpu/drm/i915/i915_guc_submission.c | 24 +++++++++++------------- 1 file changed, 11 insertions(+), 13 deletions(-) diff --git a/drivers/gpu/drm/i915/i915_guc_submission.c b/drivers/gpu/drm/i915/i915_guc_submission.c index 20ab20b..991e76e 100644 --- a/drivers/gpu/drm/i915/i915_guc_submission.c +++ b/drivers/gpu/drm/i915/i915_guc_submission.c @@ -280,6 +280,12 @@ static unsigned long __select_cacheline(struct intel_guc* guc) return offset; } +static inline struct guc_process_desc * +__get_process_desc(struct i915_guc_client *client) +{ + return client->vaddr + client->proc_desc_offset; +} + /* * Initialise the process descriptor shared with the GuC firmware. */ @@ -288,9 +294,7 @@ static void guc_proc_desc_init(struct intel_guc *guc, { struct guc_process_desc *desc; - desc = client->vaddr + client->proc_desc_offset; - - memset(desc, 0, sizeof(*desc)); + desc = memset(__get_process_desc(client), 0, sizeof(*desc)); /* * XXX: pDoorbell and WQVBaseAddress are pointers in process address @@ -422,8 +426,7 @@ int i915_guc_wq_reserve(struct drm_i915_gem_request *request) { const size_t wqi_size = sizeof(struct guc_wq_item); struct i915_guc_client *client = request->i915->guc.execbuf_client; - struct guc_process_desc *desc = client->vaddr + - client->proc_desc_offset; + struct guc_process_desc *desc = __get_process_desc(client); u32 freespace; int ret; @@ -468,12 +471,10 @@ static void guc_wq_item_append(struct i915_guc_client *client, const size_t wqi_size = sizeof(struct guc_wq_item); const u32 wqi_len = wqi_size/sizeof(u32) - 1; struct intel_engine_cs *engine = rq->engine; - struct guc_process_desc *desc; + struct guc_process_desc *desc = __get_process_desc(client); struct guc_wq_item *wqi; u32 freespace, tail, wq_off; - desc = client->vaddr + client->proc_desc_offset; - /* Free space is guaranteed, see i915_guc_wq_reserve() above */ freespace = CIRC_SPACE(client->wq_tail, desc->head, client->wq_size); GEM_BUG_ON(freespace < wqi_size); @@ -519,8 +520,7 @@ static void guc_wq_item_append(struct i915_guc_client *client, static void guc_reset_wq(struct i915_guc_client *client) { - struct guc_process_desc *desc = client->vaddr + - client->proc_desc_offset; + struct guc_process_desc *desc = __get_process_desc(client); desc->head = 0; desc->tail = 0; @@ -530,13 +530,11 @@ static void guc_reset_wq(struct i915_guc_client *client) static int guc_ring_doorbell(struct i915_guc_client *client) { - struct guc_process_desc *desc; + struct guc_process_desc *desc = __get_process_desc(client); union guc_doorbell_qw db_cmp, db_exc, db_ret; union guc_doorbell_qw *db; int attempt = 2, ret = -EAGAIN; - desc = client->vaddr + client->proc_desc_offset; - /* Update the tail so it is visible to GuC */ desc->tail = client->wq_tail; -- 2.7.4