drm/nouveau/mpeg: remove dependence on namedb/engctx lookup

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

drivers/gpu/drm/nouveau/nvkm/engine/mpeg/nv31.c

@@ -24,9 +24,6 @@
 #include "nv31.h"
 
 #include <core/client.h>
-#include <core/handle.h>
-#include <engine/fifo.h>
-#include <subdev/instmem.h>
 #include <subdev/fb.h>
 #include <subdev/timer.h>
 
@@ -58,44 +55,58 @@ nv31_mpeg_object_ctor(struct nvkm_object *parent,
 	return 0;
 }
 
-static int
-nv31_mpeg_mthd_dma(struct nvkm_object *object, u32 mthd, void *arg, u32 len)
+static bool
+nv31_mpeg_mthd_dma(struct nvkm_device *device, u32 mthd, u32 data)
 {
-	struct nv31_mpeg *mpeg = (void *)object->engine;
-	struct nvkm_device *device = mpeg->base.engine.subdev.device;
-	struct nvkm_instmem *imem = device->imem;
-	u32 inst = *(u32 *)arg << 4;
-	u32 dma0 = imem->func->rd32(imem, inst + 0);
-	u32 dma1 = imem->func->rd32(imem, inst + 4);
-	u32 dma2 = imem->func->rd32(imem, inst + 8);
+	u32 inst = data << 4;
+	u32 dma0 = nvkm_rd32(device, 0x700000 + inst);
+	u32 dma1 = nvkm_rd32(device, 0x700004 + inst);
+	u32 dma2 = nvkm_rd32(device, 0x700008 + inst);
 	u32 base = (dma2 & 0xfffff000) | (dma0 >> 20);
 	u32 size = dma1 + 1;
 
 	/* only allow linear DMA objects */
 	if (!(dma0 & 0x00002000))
-		return -EINVAL;
+		return false;
 
 	if (mthd == 0x0190) {
 		/* DMA_CMD */
-		nvkm_mask(device, 0x00b300, 0x00010000, (dma0 & 0x00030000) ? 0x00010000 : 0);
+		nvkm_mask(device, 0x00b300, 0x00010000,
+				  (dma0 & 0x00030000) ? 0x00010000 : 0);
 		nvkm_wr32(device, 0x00b334, base);
 		nvkm_wr32(device, 0x00b324, size);
 	} else
 	if (mthd == 0x01a0) {
 		/* DMA_DATA */
-		nvkm_mask(device, 0x00b300, 0x00020000, (dma0 & 0x00030000) ? 0x00020000 : 0);
+		nvkm_mask(device, 0x00b300, 0x00020000,
+				  (dma0 & 0x00030000) ? 0x00020000 : 0);
 		nvkm_wr32(device, 0x00b360, base);
 		nvkm_wr32(device, 0x00b364, size);
 	} else {
 		/* DMA_IMAGE, VRAM only */
 		if (dma0 & 0x00030000)
-			return -EINVAL;
+			return false;
 
 		nvkm_wr32(device, 0x00b370, base);
 		nvkm_wr32(device, 0x00b374, size);
 	}
 
-	return 0;
+	return true;
+}
+
+static bool
+nv31_mpeg_mthd(struct nv31_mpeg *mpeg, u32 mthd, u32 data)
+{
+	struct nvkm_device *device = mpeg->base.engine.subdev.device;
+	switch (mthd) {
+	case 0x190:
+	case 0x1a0:
+	case 0x1b0:
+		return mpeg->mthd_dma(device, mthd, data);
+	default:
+		break;
+	}
+	return false;
 }
 
 struct nvkm_ofuncs
@@ -108,17 +119,9 @@ nv31_mpeg_ofuncs = {
 	.wr32 = _nvkm_gpuobj_wr32,
 };
 
-static struct nvkm_omthds
-nv31_mpeg_omthds[] = {
-	{ 0x0190, 0x0190, nv31_mpeg_mthd_dma },
-	{ 0x01a0, 0x01a0, nv31_mpeg_mthd_dma },
-	{ 0x01b0, 0x01b0, nv31_mpeg_mthd_dma },
-	{}
-};
-
 struct nvkm_oclass
 nv31_mpeg_sclass[] = {
-	{ 0x3174, &nv31_mpeg_ofuncs, nv31_mpeg_omthds },
+	{ 0x3174, &nv31_mpeg_ofuncs },
 	{}
 };
 
@@ -149,6 +152,7 @@ nv31_mpeg_context_ctor(struct nvkm_object *parent,
 		*pobject = NULL;
 		return -EBUSY;
 	}
+	chan->fifo = nvkm_fifo_chan(parent);
 	mpeg->chan = chan;
 	spin_unlock_irqrestore(&nv_engine(mpeg)->lock, flags);
 	return 0;
@@ -199,9 +203,6 @@ nv31_mpeg_intr(struct nvkm_subdev *subdev)
 {
 	struct nv31_mpeg *mpeg = (void *)subdev;
 	struct nvkm_device *device = mpeg->base.engine.subdev.device;
-	struct nvkm_fifo *fifo = device->fifo;
-	struct nvkm_handle *handle;
-	struct nvkm_object *engctx;
 	u32 stat = nvkm_rd32(device, 0x00b100);
 	u32 type = nvkm_rd32(device, 0x00b230);
 	u32 mthd = nvkm_rd32(device, 0x00b234);
@@ -209,8 +210,7 @@ nv31_mpeg_intr(struct nvkm_subdev *subdev)
 	u32 show = stat;
 	unsigned long flags;
 
-	spin_lock_irqsave(&nv_engine(mpeg)->lock, flags);
-	engctx = nv_object(mpeg->chan);
+	spin_lock_irqsave(&mpeg->base.engine.lock, flags);
 
 	if (stat & 0x01000000) {
 		/* happens on initial binding of the object */
@@ -219,11 +219,9 @@ nv31_mpeg_intr(struct nvkm_subdev *subdev)
 			show &= ~0x01000000;
 		}
 
-		if (type == 0x00000010 && engctx) {
-			handle = nvkm_handle_get_class(engctx, 0x3174);
-			if (handle && !nv_call(handle->object, mthd, data))
+		if (type == 0x00000010) {
+			if (!nv31_mpeg_mthd(mpeg, mthd, data))
 				show &= ~0x01000000;
-			nvkm_handle_put(handle);
 		}
 	}
 
@@ -232,11 +230,12 @@ nv31_mpeg_intr(struct nvkm_subdev *subdev)
 
 	if (show) {
 		nvkm_error(subdev, "ch %d [%s] %08x %08x %08x %08x\n",
-			   fifo->chid(fifo, engctx),
-			   nvkm_client_name(engctx), stat, type, mthd, data);
+			   mpeg->chan ? mpeg->chan->fifo->chid : -1,
+			   nvkm_client_name(mpeg->chan),
+			   stat, type, mthd, data);
 	}
 
-	spin_unlock_irqrestore(&nv_engine(mpeg)->lock, flags);
+	spin_unlock_irqrestore(&mpeg->base.engine.lock, flags);
 }
 
 static int
@@ -252,6 +251,7 @@ nv31_mpeg_ctor(struct nvkm_object *parent, struct nvkm_object *engine,
 	if (ret)
 		return ret;
 
+	mpeg->mthd_dma = nv31_mpeg_mthd_dma;
 	nv_subdev(mpeg)->unit = 0x00000002;
 	nv_subdev(mpeg)->intr = nv31_mpeg_intr;
 	nv_engine(mpeg)->cclass = &nv31_mpeg_cclass;

drivers/gpu/drm/nouveau/nvkm/engine/mpeg/nv31.h

 #ifndef __NV31_MPEG_H__
 #define __NV31_MPEG_H__
 #include <engine/mpeg.h>
+#include <engine/fifo.h>
 
 struct nv31_mpeg_chan {
 	struct nvkm_object base;
+	struct nvkm_fifo_chan *fifo;
 };
 
 struct nv31_mpeg {
 	struct nvkm_mpeg base;
 	struct nv31_mpeg_chan *chan;
+	bool (*mthd_dma)(struct nvkm_device *, u32 mthd, u32 data);
 };
 #endif

drivers/gpu/drm/nouveau/nvkm/engine/mpeg/nv40.c

@@ -29,13 +29,11 @@
  * MPEG object classes
  ******************************************************************************/
 
-static int
-nv40_mpeg_mthd_dma(struct nvkm_object *object, u32 mthd, void *arg, u32 len)
+bool
+nv40_mpeg_mthd_dma(struct nvkm_device *device, u32 mthd, u32 data)
 {
-	struct nv31_mpeg *mpeg = (void *)object->engine;
-	struct nvkm_device *device = mpeg->base.engine.subdev.device;
 	struct nvkm_instmem *imem = device->imem;
-	u32 inst = *(u32 *)arg << 4;
+	u32 inst = data << 4;
 	u32 dma0 = imem->func->rd32(imem, inst + 0);
 	u32 dma1 = imem->func->rd32(imem, inst + 4);
 	u32 dma2 = imem->func->rd32(imem, inst + 8);
@@ -44,7 +42,7 @@ nv40_mpeg_mthd_dma(struct nvkm_object *object, u32 mthd, void *arg, u32 len)
 
 	/* only allow linear DMA objects */
 	if (!(dma0 & 0x00002000))
-		return -EINVAL;
+		return false;
 
 	if (mthd == 0x0190) {
 		/* DMA_CMD */
@@ -60,26 +58,18 @@ nv40_mpeg_mthd_dma(struct nvkm_object *object, u32 mthd, void *arg, u32 len)
 	} else {
 		/* DMA_IMAGE, VRAM only */
 		if (dma0 & 0x00030000)
-			return -EINVAL;
+			return false;
 
 		nvkm_wr32(device, 0x00b370, base);
 		nvkm_wr32(device, 0x00b374, size);
 	}
 
-	return 0;
+	return true;
 }
 
-static struct nvkm_omthds
-nv40_mpeg_omthds[] = {
-	{ 0x0190, 0x0190, nv40_mpeg_mthd_dma },
-	{ 0x01a0, 0x01a0, nv40_mpeg_mthd_dma },
-	{ 0x01b0, 0x01b0, nv40_mpeg_mthd_dma },
-	{}
-};
-
 struct nvkm_oclass
 nv40_mpeg_sclass[] = {
-	{ 0x3174, &nv31_mpeg_ofuncs, nv40_mpeg_omthds },
+	{ 0x3174, &nv31_mpeg_ofuncs },
 	{}
 };
 
@@ -116,6 +106,7 @@ nv40_mpeg_ctor(struct nvkm_object *parent, struct nvkm_object *engine,
 	if (ret)
 		return ret;
 
+	mpeg->mthd_dma = nv40_mpeg_mthd_dma;
 	nv_subdev(mpeg)->unit = 0x00000002;
 	nv_subdev(mpeg)->intr = nv40_mpeg_intr;
 	nv_engine(mpeg)->cclass = &nv31_mpeg_cclass;

drivers/gpu/drm/nouveau/nvkm/engine/mpeg/nv44.c

@@ -24,24 +24,47 @@
 #include <engine/mpeg.h>
 
 #include <core/client.h>
-#include <core/handle.h>
 #include <engine/fifo.h>
 
+struct nv44_mpeg {
+	struct nvkm_mpeg base;
+	struct list_head chan;
+};
+
 struct nv44_mpeg_chan {
 	struct nvkm_mpeg_chan base;
+	struct nvkm_fifo_chan *fifo;
+	u32 inst;
+	struct list_head head;
 };
 
+bool nv40_mpeg_mthd_dma(struct nvkm_device *, u32, u32);
+
 /*******************************************************************************
  * PMPEG context
  ******************************************************************************/
 
+static void
+nv44_mpeg_context_dtor(struct nvkm_object *object)
+{
+	struct nv44_mpeg_chan *chan = (void *)object;
+	struct nv44_mpeg *mpeg = (void *)object->engine;
+	unsigned long flags;
+	spin_lock_irqsave(&mpeg->base.engine.lock, flags);
+	list_del(&chan->head);
+	spin_unlock_irqrestore(&mpeg->base.engine.lock, flags);
+	nvkm_mpeg_context_destroy(&chan->base);
+}
+
 static int
 nv44_mpeg_context_ctor(struct nvkm_object *parent,
 		       struct nvkm_object *engine,
 		       struct nvkm_oclass *oclass, void *data, u32 size,
 		       struct nvkm_object **pobject)
 {
+	struct nv44_mpeg *mpeg = (void *)engine;
 	struct nv44_mpeg_chan *chan;
+	unsigned long flags;
 	int ret;
 
 	ret = nvkm_mpeg_context_create(parent, engine, oclass, NULL, 264 * 4,
@@ -50,6 +73,12 @@ nv44_mpeg_context_ctor(struct nvkm_object *parent,
 	if (ret)
 		return ret;
 
+	spin_lock_irqsave(&mpeg->base.engine.lock, flags);
+	chan->fifo = nvkm_fifo_chan(parent);
+	chan->inst = chan->base.base.gpuobj.addr;
+	list_add(&chan->head, &mpeg->chan);
+	spin_unlock_irqrestore(&mpeg->base.engine.lock, flags);
+
 	nvkm_kmap(&chan->base.base.gpuobj);
 	nvkm_wo32(&chan->base.base.gpuobj, 0x78, 0x02001ec1);
 	nvkm_done(&chan->base.base.gpuobj);
@@ -77,7 +106,7 @@ nv44_mpeg_cclass = {
 	.handle = NV_ENGCTX(MPEG, 0x44),
 	.ofuncs = &(struct nvkm_ofuncs) {
 		.ctor = nv44_mpeg_context_ctor,
-		.dtor = _nvkm_mpeg_context_dtor,
+		.dtor = nv44_mpeg_context_dtor,
 		.init = _nvkm_mpeg_context_init,
 		.fini = nv44_mpeg_context_fini,
 		.rd32 = _nvkm_mpeg_context_rd32,
@@ -89,25 +118,45 @@ nv44_mpeg_cclass = {
  * PMPEG engine/subdev functions
  ******************************************************************************/
 
+static bool
+nv44_mpeg_mthd(struct nvkm_device *device, u32 mthd, u32 data)
+{
+	switch (mthd) {
+	case 0x190:
+	case 0x1a0:
+	case 0x1b0:
+		return nv40_mpeg_mthd_dma(device, mthd, data);
+	default:
+		break;
+	}
+	return false;
+}
+
 static void
 nv44_mpeg_intr(struct nvkm_subdev *subdev)
 {
-	struct nvkm_mpeg *mpeg = (void *)subdev;
-	struct nvkm_device *device = mpeg->engine.subdev.device;
-	struct nvkm_fifo *fifo = device->fifo;
-	struct nvkm_engine *engine = nv_engine(subdev);
-	struct nvkm_object *engctx;
-	struct nvkm_handle *handle;
+	struct nv44_mpeg *mpeg = (void *)subdev;
+	struct nv44_mpeg_chan *temp, *chan = NULL;
+	struct nvkm_device *device = mpeg->base.engine.subdev.device;
+	unsigned long flags;
 	u32 inst = nvkm_rd32(device, 0x00b318) & 0x000fffff;
 	u32 stat = nvkm_rd32(device, 0x00b100);
 	u32 type = nvkm_rd32(device, 0x00b230);
 	u32 mthd = nvkm_rd32(device, 0x00b234);
 	u32 data = nvkm_rd32(device, 0x00b238);
 	u32 show = stat;
-	int chid;
-
-	engctx = nvkm_engctx_get(engine, inst);
-	chid   = fifo->chid(fifo, engctx);
+	int chid = -1;
+
+	spin_lock_irqsave(&mpeg->base.engine.lock, flags);
+	list_for_each_entry(temp, &mpeg->chan, head) {
+		if (temp->inst >> 4 == inst) {
+			chan = temp;
+			chid = chan->fifo->chid;
+			list_del(&chan->head);
+			list_add(&chan->head, &mpeg->chan);
+			break;
+		}
+	}
 
 	if (stat & 0x01000000) {
 		/* happens on initial binding of the object */
@@ -117,10 +166,8 @@ nv44_mpeg_intr(struct nvkm_subdev *subdev)
 		}
 
 		if (type == 0x00000010) {
-			handle = nvkm_handle_get_class(engctx, 0x3174);
-			if (handle && !nv_call(handle->object, mthd, data))
+			if (!nv44_mpeg_mthd(subdev->device, mthd, data))
 				show &= ~0x01000000;
-			nvkm_handle_put(handle);
 		}
 	}
 
@@ -128,13 +175,12 @@ nv44_mpeg_intr(struct nvkm_subdev *subdev)
 	nvkm_wr32(device, 0x00b230, 0x00000001);
 
 	if (show) {
-		nvkm_error(subdev,
-			   "ch %d [%08x %s] %08x %08x %08x %08x\n",
-			   chid, inst << 4, nvkm_client_name(engctx), stat,
-			   type, mthd, data);
+		nvkm_error(subdev, "ch %d [%08x %s] %08x %08x %08x %08x\n",
+			   chid, inst << 4, nvkm_client_name(chan),
+			   stat, type, mthd, data);
 	}
 
-	nvkm_engctx_put(engctx);
+	spin_unlock_irqrestore(&mpeg->base.engine.lock, flags);
 }
 
 static void
@@ -158,7 +204,7 @@ nv44_mpeg_ctor(struct nvkm_object *parent, struct nvkm_object *engine,
 	       struct nvkm_oclass *oclass, void *data, u32 size,
 	       struct nvkm_object **pobject)
 {
-	struct nvkm_mpeg *mpeg;
+	struct nv44_mpeg *mpeg;
 	int ret;
 
 	ret = nvkm_mpeg_create(parent, engine, oclass, &mpeg);
@@ -166,6 +212,8 @@ nv44_mpeg_ctor(struct nvkm_object *parent, struct nvkm_object *engine,
 	if (ret)
 		return ret;
 
+	INIT_LIST_HEAD(&mpeg->chan);
+
 	nv_subdev(mpeg)->unit = 0x00000002;
 	nv_subdev(mpeg)->intr = nv44_mpeg_me_intr;
 	nv_engine(mpeg)->cclass = &nv44_mpeg_cclass;