From: Ben Skeggs <bskeggs@redhat.com>
Date: Tue, 14 Jan 2020 20:34:22 +0000 (+1000)
Subject: drm/nouveau/flcn/qmgr: explicitly create queue manager from subdevs
X-Git-Tag: v5.6-rc1~114^2~8^2~29
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=8763955ba73807c6f5d38364074c1802d8415172;p=thirdparty%2Flinux.git

drm/nouveau/flcn/qmgr: explicitly create queue manager from subdevs

Code to interface with LS firmwares is being moved to the subdevs where it
belongs, rather than living in the common falcon code.

This is an incremental step towards that goal.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
---

diff --git a/drivers/gpu/drm/nouveau/include/nvkm/core/falcon.h b/drivers/gpu/drm/nouveau/include/nvkm/core/falcon.h
index 7bef0e666bd47..043bd498e5c94 100644
--- a/drivers/gpu/drm/nouveau/include/nvkm/core/falcon.h
+++ b/drivers/gpu/drm/nouveau/include/nvkm/core/falcon.h
@@ -29,4 +29,8 @@ int gp102_sec2_flcn_enable(struct nvkm_falcon *);
 } while(0)
 #define FLCN_DBG(f,fmt,a...) FLCN_PRINTK(debug, (f), fmt, ##a)
 #define FLCN_ERR(f,fmt,a...) FLCN_PRINTK(error, (f), fmt, ##a)
+
+struct nvkm_falcon_qmgr;
+int nvkm_falcon_qmgr_new(struct nvkm_falcon *, struct nvkm_falcon_qmgr **);
+void nvkm_falcon_qmgr_del(struct nvkm_falcon_qmgr **);
 #endif
diff --git a/drivers/gpu/drm/nouveau/include/nvkm/engine/sec2.h b/drivers/gpu/drm/nouveau/include/nvkm/engine/sec2.h
index 25f016fefe15b..3b6586e6c8f82 100644
--- a/drivers/gpu/drm/nouveau/include/nvkm/engine/sec2.h
+++ b/drivers/gpu/drm/nouveau/include/nvkm/engine/sec2.h
@@ -10,6 +10,7 @@ struct nvkm_sec2 {
 	struct nvkm_engine engine;
 	struct nvkm_falcon falcon;
 
+	struct nvkm_falcon_qmgr *qmgr;
 	struct nvkm_msgqueue *queue;
 	struct work_struct work;
 };
diff --git a/drivers/gpu/drm/nouveau/include/nvkm/subdev/pmu.h b/drivers/gpu/drm/nouveau/include/nvkm/subdev/pmu.h
index 0b72d63b24272..10b3c71ccf4bd 100644
--- a/drivers/gpu/drm/nouveau/include/nvkm/subdev/pmu.h
+++ b/drivers/gpu/drm/nouveau/include/nvkm/subdev/pmu.h
@@ -8,6 +8,8 @@ struct nvkm_pmu {
 	const struct nvkm_pmu_func *func;
 	struct nvkm_subdev subdev;
 	struct nvkm_falcon falcon;
+
+	struct nvkm_falcon_qmgr *qmgr;
 	struct nvkm_msgqueue *queue;
 
 	struct {
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/sec2/base.c b/drivers/gpu/drm/nouveau/nvkm/engine/sec2/base.c
index bb79488f414da..542f88a6fc396 100644
--- a/drivers/gpu/drm/nouveau/nvkm/engine/sec2/base.c
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/sec2/base.c
@@ -59,6 +59,7 @@ nvkm_sec2_dtor(struct nvkm_engine *engine)
 {
 	struct nvkm_sec2 *sec2 = nvkm_sec2(engine);
 	nvkm_msgqueue_del(&sec2->queue);
+	nvkm_falcon_qmgr_del(&sec2->qmgr);
 	nvkm_falcon_dtor(&sec2->falcon);
 	return sec2;
 }
@@ -95,6 +96,9 @@ nvkm_sec2_new_(const struct nvkm_sec2_fwif *fwif, struct nvkm_device *device,
 	if (ret)
 		return ret;
 
+	if ((ret = nvkm_falcon_qmgr_new(&sec2->falcon, &sec2->qmgr)))
+		return ret;
+
 	INIT_WORK(&sec2->work, nvkm_sec2_recv);
 	return 0;
 };
diff --git a/drivers/gpu/drm/nouveau/nvkm/falcon/msgqueue.h b/drivers/gpu/drm/nouveau/nvkm/falcon/msgqueue.h
index 13b54f8d8e049..e978fb15d3b6d 100644
--- a/drivers/gpu/drm/nouveau/nvkm/falcon/msgqueue.h
+++ b/drivers/gpu/drm/nouveau/nvkm/falcon/msgqueue.h
@@ -132,6 +132,7 @@ struct nvkm_msgqueue_func {
  * @tail_reg:	address of the TAIL register for this queue
  */
 struct nvkm_msgqueue_queue {
+	struct nvkm_falcon_qmgr *qmgr;
 	struct mutex mutex;
 	u32 index;
 	u32 offset;
diff --git a/drivers/gpu/drm/nouveau/nvkm/falcon/qmgr.c b/drivers/gpu/drm/nouveau/nvkm/falcon/qmgr.c
index edf941559aec4..f1469ecb7a4e5 100644
--- a/drivers/gpu/drm/nouveau/nvkm/falcon/qmgr.c
+++ b/drivers/gpu/drm/nouveau/nvkm/falcon/qmgr.c
@@ -54,3 +54,26 @@ msgqueue_seq_release(struct nvkm_msgqueue *priv, struct nvkm_msgqueue_seq *seq)
 	seq->completion = NULL;
 	clear_bit(seq->id, priv->seq_tbl);
 }
+
+void
+nvkm_falcon_qmgr_del(struct nvkm_falcon_qmgr **pqmgr)
+{
+	struct nvkm_falcon_qmgr *qmgr = *pqmgr;
+	if (qmgr) {
+		kfree(*pqmgr);
+		*pqmgr = NULL;
+	}
+}
+
+int
+nvkm_falcon_qmgr_new(struct nvkm_falcon *falcon,
+		     struct nvkm_falcon_qmgr **pqmgr)
+{
+	struct nvkm_falcon_qmgr *qmgr;
+
+	if (!(qmgr = *pqmgr = kzalloc(sizeof(*qmgr), GFP_KERNEL)))
+		return -ENOMEM;
+
+	qmgr->falcon = falcon;
+	return 0;
+}
diff --git a/drivers/gpu/drm/nouveau/nvkm/falcon/qmgr.h b/drivers/gpu/drm/nouveau/nvkm/falcon/qmgr.h
index db00c5ee6124a..9c8d77c11fd99 100644
--- a/drivers/gpu/drm/nouveau/nvkm/falcon/qmgr.h
+++ b/drivers/gpu/drm/nouveau/nvkm/falcon/qmgr.h
@@ -9,6 +9,10 @@
 /* max size of the messages we can receive */
 #define MSG_BUF_SIZE 128
 
+struct nvkm_falcon_qmgr {
+	struct nvkm_falcon *falcon;
+};
+
 struct nvkm_msgqueue_seq *msgqueue_seq_acquire(struct nvkm_msgqueue *);
 void msgqueue_seq_release(struct nvkm_msgqueue *, struct nvkm_msgqueue_seq *);
 #endif
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/base.c b/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/base.c
index 60e14f9a5415b..850939f7e2878 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/base.c
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/base.c
@@ -139,6 +139,7 @@ nvkm_pmu_dtor(struct nvkm_subdev *subdev)
 {
 	struct nvkm_pmu *pmu = nvkm_pmu(subdev);
 	nvkm_msgqueue_del(&pmu->queue);
+	nvkm_falcon_qmgr_del(&pmu->qmgr);
 	nvkm_falcon_dtor(&pmu->falcon);
 	return nvkm_pmu(subdev);
 }
@@ -156,6 +157,8 @@ int
 nvkm_pmu_ctor(const struct nvkm_pmu_fwif *fwif, struct nvkm_device *device,
 	      int index, struct nvkm_pmu *pmu)
 {
+	int ret;
+
 	nvkm_subdev_ctor(&nvkm_pmu, device, index, &pmu->subdev);
 
 	INIT_WORK(&pmu->recv.work, nvkm_pmu_recv);
@@ -167,9 +170,16 @@ nvkm_pmu_ctor(const struct nvkm_pmu_fwif *fwif, struct nvkm_device *device,
 
 	pmu->func = fwif->func;
 
-	return nvkm_falcon_ctor(pmu->func->flcn, &pmu->subdev,
-				nvkm_subdev_name[pmu->subdev.index], 0x10a000,
-				&pmu->falcon);
+	ret = nvkm_falcon_ctor(pmu->func->flcn, &pmu->subdev,
+			       nvkm_subdev_name[pmu->subdev.index], 0x10a000,
+			       &pmu->falcon);
+	if (ret)
+		return ret;
+
+	if ((ret = nvkm_falcon_qmgr_new(&pmu->falcon, &pmu->qmgr)))
+		return ret;
+
+	return 0;
 }
 
 int