These changes are the raw update to linux-4.4.6-rt14. Kernel sources

are taken from kernel.org, and rt patch from the rt wiki download page.

During the rebasing, the following patch collided:

Force tick interrupt and get rid of softirq magic(I70131fb85).

Collisions have been removed because its logic was found on the
source already.

Change-Id: I7f57a4081d9deaa0d9ccfc41a6c8daccdee3b769
Signed-off-by: José Pekkarinen <jose.pekkarinen@nokia.com>

1 files changed, 72 insertions, 67 deletions

diff --git a/kernel/drivers/gpu/drm/nouveau/nouveau_chan.c b/kernel/drivers/gpu/drm/nouveau/nouveau_chan.c
index 0589babc5..1860f389f 100644
--- a/kernel/drivers/gpu/drm/nouveau/nouveau_chan.c
+++ b/kernel/drivers/gpu/drm/nouveau/nouveau_chan.c
@@ -24,6 +24,7 @@
 
 #include <nvif/os.h>
 #include <nvif/class.h>
+#include <nvif/ioctl.h>
 
 /*XXX*/
 #include <core/client.h>
@@ -42,20 +43,24 @@ module_param_named(vram_pushbuf, nouveau_vram_pushbuf, int, 0400);
 int
 nouveau_channel_idle(struct nouveau_channel *chan)
 {
-	struct nouveau_cli *cli = (void *)nvif_client(chan->object);
-	struct nouveau_fence *fence = NULL;
-	int ret;
+	if (likely(chan && chan->fence)) {
+		struct nouveau_cli *cli = (void *)chan->user.client;
+		struct nouveau_fence *fence = NULL;
+		int ret;
+
+		ret = nouveau_fence_new(chan, false, &fence);
+		if (!ret) {
+			ret = nouveau_fence_wait(fence, false, false);
+			nouveau_fence_unref(&fence);
+		}
 
-	ret = nouveau_fence_new(chan, false, &fence);
-	if (!ret) {
-		ret = nouveau_fence_wait(fence, false, false);
-		nouveau_fence_unref(&fence);
+		if (ret) {
+			NV_PRINTK(err, cli, "failed to idle channel %d [%s]\n",
+				  chan->chid, nvxx_client(&cli->base)->name);
+			return ret;
+		}
 	}
-
-	if (ret)
-		NV_PRINTK(error, cli, "failed to idle channel 0x%08x [%s]\n",
-			  chan->object->handle, nvxx_client(&cli->base)->name);
-	return ret;
+	return 0;
 }
 
 void
@@ -63,21 +68,18 @@ nouveau_channel_del(struct nouveau_channel **pchan)
 {
 	struct nouveau_channel *chan = *pchan;
 	if (chan) {
-		if (chan->fence) {
-			nouveau_channel_idle(chan);
+		if (chan->fence)
 			nouveau_fence(chan->drm)->context_del(chan);
-		}
 		nvif_object_fini(&chan->nvsw);
 		nvif_object_fini(&chan->gart);
 		nvif_object_fini(&chan->vram);
-		nvif_object_ref(NULL, &chan->object);
+		nvif_object_fini(&chan->user);
 		nvif_object_fini(&chan->push.ctxdma);
 		nouveau_bo_vma_del(chan->push.buffer, &chan->push.vma);
 		nouveau_bo_unmap(chan->push.buffer);
 		if (chan->push.buffer && chan->push.buffer->pin_refcnt)
 			nouveau_bo_unpin(chan->push.buffer);
 		nouveau_bo_ref(NULL, &chan->push.buffer);
-		nvif_device_ref(NULL, &chan->device);
 		kfree(chan);
 	}
 	*pchan = NULL;
@@ -85,9 +87,9 @@ nouveau_channel_del(struct nouveau_channel **pchan)
 
 static int
 nouveau_channel_prep(struct nouveau_drm *drm, struct nvif_device *device,
-		     u32 handle, u32 size, struct nouveau_channel **pchan)
+		     u32 size, struct nouveau_channel **pchan)
 {
-	struct nouveau_cli *cli = (void *)nvif_client(&device->base);
+	struct nouveau_cli *cli = (void *)device->object.client;
 	struct nvkm_mmu *mmu = nvxx_mmu(device);
 	struct nv_dma_v0 args = {};
 	struct nouveau_channel *chan;
@@ -98,7 +100,7 @@ nouveau_channel_prep(struct nouveau_drm *drm, struct nvif_device *device,
 	if (!chan)
 		return -ENOMEM;
 
-	nvif_device_ref(device, &chan->device);
+	chan->device = device;
 	chan->drm = drm;
 
 	/* allocate memory for dma push buffer */
@@ -146,7 +148,8 @@ nouveau_channel_prep(struct nouveau_drm *drm, struct nvif_device *device,
 			 */
 			args.target = NV_DMA_V0_TARGET_PCI;
 			args.access = NV_DMA_V0_ACCESS_RDWR;
-			args.start = nv_device_resource_start(nvxx_device(device), 1);
+			args.start = nvxx_device(device)->func->
+				resource_addr(nvxx_device(device), 1);
 			args.limit = args.start + device->info.ram_user - 1;
 		} else {
 			args.target = NV_DMA_V0_TARGET_VRAM;
@@ -155,7 +158,7 @@ nouveau_channel_prep(struct nouveau_drm *drm, struct nvif_device *device,
 			args.limit = device->info.ram_user - 1;
 		}
 	} else {
-		if (chan->drm->agp.stat == ENABLED) {
+		if (chan->drm->agp.bridge) {
 			args.target = NV_DMA_V0_TARGET_AGP;
 			args.access = NV_DMA_V0_ACCESS_RDWR;
 			args.start = chan->drm->agp.base;
@@ -169,8 +172,7 @@ nouveau_channel_prep(struct nouveau_drm *drm, struct nvif_device *device,
 		}
 	}
 
-	ret = nvif_object_init(nvif_object(device), NULL, NVDRM_PUSH |
-			       (handle & 0xffff), NV_DMA_FROM_MEMORY,
+	ret = nvif_object_init(&device->object, 0, NV_DMA_FROM_MEMORY,
 			       &args, sizeof(args), &chan->push.ctxdma);
 	if (ret) {
 		nouveau_channel_del(pchan);
@@ -182,7 +184,7 @@ nouveau_channel_prep(struct nouveau_drm *drm, struct nvif_device *device,
 
 static int
 nouveau_channel_ind(struct nouveau_drm *drm, struct nvif_device *device,
-		    u32 handle, u32 engine, struct nouveau_channel **pchan)
+		    u32 engine, struct nouveau_channel **pchan)
 {
 	static const u16 oclasses[] = { MAXWELL_CHANNEL_GPFIFO_A,
 					KEPLER_CHANNEL_GPFIFO_A,
@@ -193,14 +195,15 @@ nouveau_channel_ind(struct nouveau_drm *drm, struct nvif_device *device,
 	const u16 *oclass = oclasses;
 	union {
 		struct nv50_channel_gpfifo_v0 nv50;
+		struct fermi_channel_gpfifo_v0 fermi;
 		struct kepler_channel_gpfifo_a_v0 kepler;
-	} args, *retn;
+	} args;
 	struct nouveau_channel *chan;
 	u32 size;
 	int ret;
 
 	/* allocate dma push buffer */
-	ret = nouveau_channel_prep(drm, device, handle, 0x12000, &chan);
+	ret = nouveau_channel_prep(drm, device, 0x12000, &chan);
 	*pchan = chan;
 	if (ret)
 		return ret;
@@ -210,26 +213,36 @@ nouveau_channel_ind(struct nouveau_drm *drm, struct nvif_device *device,
 		if (oclass[0] >= KEPLER_CHANNEL_GPFIFO_A) {
 			args.kepler.version = 0;
 			args.kepler.engine  = engine;
-			args.kepler.pushbuf = chan->push.ctxdma.handle;
 			args.kepler.ilength = 0x02000;
 			args.kepler.ioffset = 0x10000 + chan->push.vma.offset;
+			args.kepler.vm = 0;
 			size = sizeof(args.kepler);
+		} else
+		if (oclass[0] >= FERMI_CHANNEL_GPFIFO) {
+			args.fermi.version = 0;
+			args.fermi.ilength = 0x02000;
+			args.fermi.ioffset = 0x10000 + chan->push.vma.offset;
+			args.fermi.vm = 0;
+			size = sizeof(args.fermi);
 		} else {
 			args.nv50.version = 0;
-			args.nv50.pushbuf = chan->push.ctxdma.handle;
 			args.nv50.ilength = 0x02000;
 			args.nv50.ioffset = 0x10000 + chan->push.vma.offset;
+			args.nv50.pushbuf = nvif_handle(&chan->push.ctxdma);
+			args.nv50.vm = 0;
 			size = sizeof(args.nv50);
 		}
 
-		ret = nvif_object_new(nvif_object(device), handle, *oclass++,
-				      &args, size, &chan->object);
+		ret = nvif_object_init(&device->object, 0, *oclass++,
+				       &args, size, &chan->user);
 		if (ret == 0) {
-			retn = chan->object->data;
-			if (chan->object->oclass >= KEPLER_CHANNEL_GPFIFO_A)
-				chan->chid = retn->kepler.chid;
+			if (chan->user.oclass >= KEPLER_CHANNEL_GPFIFO_A)
+				chan->chid = args.kepler.chid;
+			else
+			if (chan->user.oclass >= FERMI_CHANNEL_GPFIFO)
+				chan->chid = args.fermi.chid;
 			else
-				chan->chid = retn->nv50.chid;
+				chan->chid = args.nv50.chid;
 			return ret;
 		}
 	} while (*oclass);
@@ -240,7 +253,7 @@ nouveau_channel_ind(struct nouveau_drm *drm, struct nvif_device *device,
 
 static int
 nouveau_channel_dma(struct nouveau_drm *drm, struct nvif_device *device,
-		    u32 handle, struct nouveau_channel **pchan)
+		    struct nouveau_channel **pchan)
 {
 	static const u16 oclasses[] = { NV40_CHANNEL_DMA,
 					NV17_CHANNEL_DMA,
@@ -248,27 +261,26 @@ nouveau_channel_dma(struct nouveau_drm *drm, struct nvif_device *device,
 					NV03_CHANNEL_DMA,
 					0 };
 	const u16 *oclass = oclasses;
-	struct nv03_channel_dma_v0 args, *retn;
+	struct nv03_channel_dma_v0 args;
 	struct nouveau_channel *chan;
 	int ret;
 
 	/* allocate dma push buffer */
-	ret = nouveau_channel_prep(drm, device, handle, 0x10000, &chan);
+	ret = nouveau_channel_prep(drm, device, 0x10000, &chan);
 	*pchan = chan;
 	if (ret)
 		return ret;
 
 	/* create channel object */
 	args.version = 0;
-	args.pushbuf = chan->push.ctxdma.handle;
+	args.pushbuf = nvif_handle(&chan->push.ctxdma);
 	args.offset = chan->push.vma.offset;
 
 	do {
-		ret = nvif_object_new(nvif_object(device), handle, *oclass++,
-				      &args, sizeof(args), &chan->object);
+		ret = nvif_object_init(&device->object, 0, *oclass++,
+				       &args, sizeof(args), &chan->user);
 		if (ret == 0) {
-			retn = chan->object->data;
-			chan->chid = retn->chid;
+			chan->chid = args.chid;
 			return ret;
 		}
 	} while (ret && *oclass);
@@ -281,13 +293,12 @@ static int
 nouveau_channel_init(struct nouveau_channel *chan, u32 vram, u32 gart)
 {
 	struct nvif_device *device = chan->device;
-	struct nouveau_cli *cli = (void *)nvif_client(&device->base);
+	struct nouveau_cli *cli = (void *)chan->user.client;
 	struct nvkm_mmu *mmu = nvxx_mmu(device);
-	struct nvkm_sw_chan *swch;
 	struct nv_dma_v0 args = {};
 	int ret, i;
 
-	nvif_object_map(chan->object);
+	nvif_object_map(&chan->user);
 
 	/* allocate dma objects to cover all allowed vram, and gart */
 	if (device->info.family < NV_DEVICE_INFO_V0_FERMI) {
@@ -303,9 +314,8 @@ nouveau_channel_init(struct nouveau_channel *chan, u32 vram, u32 gart)
 			args.limit = device->info.ram_user - 1;
 		}
 
-		ret = nvif_object_init(chan->object, NULL, vram,
-				       NV_DMA_IN_MEMORY, &args,
-				       sizeof(args), &chan->vram);
+		ret = nvif_object_init(&chan->user, vram, NV_DMA_IN_MEMORY,
+				       &args, sizeof(args), &chan->vram);
 		if (ret)
 			return ret;
 
@@ -315,7 +325,7 @@ nouveau_channel_init(struct nouveau_channel *chan, u32 vram, u32 gart)
 			args.start = 0;
 			args.limit = cli->vm->mmu->limit - 1;
 		} else
-		if (chan->drm->agp.stat == ENABLED) {
+		if (chan->drm->agp.bridge) {
 			args.target = NV_DMA_V0_TARGET_AGP;
 			args.access = NV_DMA_V0_ACCESS_RDWR;
 			args.start = chan->drm->agp.base;
@@ -328,15 +338,14 @@ nouveau_channel_init(struct nouveau_channel *chan, u32 vram, u32 gart)
 			args.limit = mmu->limit - 1;
 		}
 
-		ret = nvif_object_init(chan->object, NULL, gart,
-				       NV_DMA_IN_MEMORY, &args,
-				       sizeof(args), &chan->gart);
+		ret = nvif_object_init(&chan->user, gart, NV_DMA_IN_MEMORY,
+				       &args, sizeof(args), &chan->gart);
 		if (ret)
 			return ret;
 	}
 
 	/* initialise dma tracking parameters */
-	switch (chan->object->oclass & 0x00ff) {
+	switch (chan->user.oclass & 0x00ff) {
 	case 0x006b:
 	case 0x006e:
 		chan->user_put = 0x40;
@@ -368,15 +377,12 @@ nouveau_channel_init(struct nouveau_channel *chan, u32 vram, u32 gart)
 
 	/* allocate software object class (used for fences on <= nv05) */
 	if (device->info.family < NV_DEVICE_INFO_V0_CELSIUS) {
-		ret = nvif_object_init(chan->object, NULL, 0x006e, 0x006e,
+		ret = nvif_object_init(&chan->user, 0x006e,
+				       NVIF_IOCTL_NEW_V0_SW_NV04,
 				       NULL, 0, &chan->nvsw);
 		if (ret)
 			return ret;
 
-		swch = (void *)nvxx_object(&chan->nvsw)->parent;
-		swch->flip = nouveau_flip_complete;
-		swch->flip_data = chan;
-
 		ret = RING_SPACE(chan, 2);
 		if (ret)
 			return ret;
@@ -392,10 +398,9 @@ nouveau_channel_init(struct nouveau_channel *chan, u32 vram, u32 gart)
 
 int
 nouveau_channel_new(struct nouveau_drm *drm, struct nvif_device *device,
-		    u32 handle, u32 arg0, u32 arg1,
-		    struct nouveau_channel **pchan)
+		    u32 arg0, u32 arg1, struct nouveau_channel **pchan)
 {
-	struct nouveau_cli *cli = (void *)nvif_client(&device->base);
+	struct nouveau_cli *cli = (void *)device->object.client;
 	bool super;
 	int ret;
 
@@ -403,19 +408,19 @@ nouveau_channel_new(struct nouveau_drm *drm, struct nvif_device *device,
 	super = cli->base.super;
 	cli->base.super = true;
 
-	ret = nouveau_channel_ind(drm, device, handle, arg0, pchan);
+	ret = nouveau_channel_ind(drm, device, arg0, pchan);
 	if (ret) {
-		NV_PRINTK(debug, cli, "ib channel create, %d\n", ret);
-		ret = nouveau_channel_dma(drm, device, handle, pchan);
+		NV_PRINTK(dbg, cli, "ib channel create, %d\n", ret);
+		ret = nouveau_channel_dma(drm, device, pchan);
 		if (ret) {
-			NV_PRINTK(debug, cli, "dma channel create, %d\n", ret);
+			NV_PRINTK(dbg, cli, "dma channel create, %d\n", ret);
 			goto done;
 		}
 	}
 
 	ret = nouveau_channel_init(*pchan, arg0, arg1);
 	if (ret) {
-		NV_PRINTK(error, cli, "channel failed to initialise, %d\n", ret);
+		NV_PRINTK(err, cli, "channel failed to initialise, %d\n", ret);
 		nouveau_channel_del(pchan);
 	}