Merge branch 'disintegrate-asm-generic' of git://git.infradead.org/users/dhowells/linux-headers into asm-generic

Patches from David Howells <dhowells@redhat.com>:

This is to complete part of the UAPI disintegration for which the
preparatory patches were pulled recently.

Note that there are some fixup patches which are at the base of the
branch aimed at you, plus all arches get the asm-generic branch merged in too.

* 'disintegrate-asm-generic' of git://git.infradead.org/users/dhowells/linux-headers:
  UAPI: (Scripted) Disintegrate include/asm-generic
  UAPI: Fix conditional header installation handling (notably kvm_para.h on m68k)
  c6x: remove c6x signal.h
  UAPI: Split compound conditionals containing __KERNEL__ in Arm64
  UAPI: Fix the guards on various asm/unistd.h files

Signed-off-by: Arnd Bergmann <arnd@arndb.de>

1 files changed, 105 insertions, 45 deletions

diff --git a/drivers/gpu/drm/nouveau/nvc0_fence.c b/drivers/gpu/drm/nouveau/nvc0_fence.c
index 47ab388a606..53299eac967 100644
--- a/drivers/gpu/drm/nouveau/nvc0_fence.c
+++ b/drivers/gpu/drm/nouveau/nvc0_fence.c
@@ -22,29 +22,44 @@
  * Authors: Ben Skeggs
  */
 
-#include "drmP.h"
-#include "nouveau_drv.h"
+#include <core/object.h>
+#include <core/client.h>
+#include <core/class.h>
+
+#include <engine/fifo.h>
+
+#include "nouveau_drm.h"
 #include "nouveau_dma.h"
-#include "nouveau_fifo.h"
-#include "nouveau_ramht.h"
 #include "nouveau_fence.h"
 
+#include "nv50_display.h"
+
 struct nvc0_fence_priv {
 	struct nouveau_fence_priv base;
 	struct nouveau_bo *bo;
+	u32 *suspend;
 };
 
 struct nvc0_fence_chan {
 	struct nouveau_fence_chan base;
 	struct nouveau_vma vma;
+	struct nouveau_vma dispc_vma[4];
 };
 
+u64
+nvc0_fence_crtc(struct nouveau_channel *chan, int crtc)
+{
+	struct nvc0_fence_chan *fctx = chan->fence;
+	return fctx->dispc_vma[crtc].offset;
+}
+
 static int
 nvc0_fence_emit(struct nouveau_fence *fence)
 {
 	struct nouveau_channel *chan = fence->channel;
-	struct nvc0_fence_chan *fctx = chan->engctx[NVOBJ_ENGINE_FENCE];
-	u64 addr = fctx->vma.offset + chan->id * 16;
+	struct nvc0_fence_chan *fctx = chan->fence;
+	struct nouveau_fifo_chan *fifo = (void *)chan->object;
+	u64 addr = fctx->vma.offset + fifo->chid * 16;
 	int ret;
 
 	ret = RING_SPACE(chan, 5);
@@ -64,8 +79,9 @@ static int
 nvc0_fence_sync(struct nouveau_fence *fence,
 		struct nouveau_channel *prev, struct nouveau_channel *chan)
 {
-	struct nvc0_fence_chan *fctx = chan->engctx[NVOBJ_ENGINE_FENCE];
-	u64 addr = fctx->vma.offset + prev->id * 16;
+	struct nvc0_fence_chan *fctx = chan->fence;
+	struct nouveau_fifo_chan *fifo = (void *)prev->object;
+	u64 addr = fctx->vma.offset + fifo->chid * 16;
 	int ret;
 
 	ret = RING_SPACE(chan, 5);
@@ -85,91 +101,135 @@ nvc0_fence_sync(struct nouveau_fence *fence,
 static u32
 nvc0_fence_read(struct nouveau_channel *chan)
 {
-	struct nvc0_fence_priv *priv = nv_engine(chan->dev, NVOBJ_ENGINE_FENCE);
-	return nouveau_bo_rd32(priv->bo, chan->id * 16/4);
+	struct nouveau_fifo_chan *fifo = (void *)chan->object;
+	struct nvc0_fence_priv *priv = chan->drm->fence;
+	return nouveau_bo_rd32(priv->bo, fifo->chid * 16/4);
 }
 
 static void
-nvc0_fence_context_del(struct nouveau_channel *chan, int engine)
+nvc0_fence_context_del(struct nouveau_channel *chan)
 {
-	struct nvc0_fence_priv *priv = nv_engine(chan->dev, engine);
-	struct nvc0_fence_chan *fctx = chan->engctx[engine];
+	struct drm_device *dev = chan->drm->dev;
+	struct nvc0_fence_priv *priv = chan->drm->fence;
+	struct nvc0_fence_chan *fctx = chan->fence;
+	int i;
+
+	if (nv_device(chan->drm->device)->card_type >= NV_D0) {
+		for (i = 0; i < dev->mode_config.num_crtc; i++) {
+			struct nouveau_bo *bo = nvd0_display_crtc_sema(dev, i);
+			nouveau_bo_vma_del(bo, &fctx->dispc_vma[i]);
+		}
+	} else
+	if (nv_device(chan->drm->device)->card_type >= NV_50) {
+		for (i = 0; i < dev->mode_config.num_crtc; i++) {
+			struct nouveau_bo *bo = nv50_display_crtc_sema(dev, i);
+			nouveau_bo_vma_del(bo, &fctx->dispc_vma[i]);
+		}
+	}
 
 	nouveau_bo_vma_del(priv->bo, &fctx->vma);
 	nouveau_fence_context_del(&fctx->base);
-	chan->engctx[engine] = NULL;
+	chan->fence = NULL;
 	kfree(fctx);
 }
 
 static int
-nvc0_fence_context_new(struct nouveau_channel *chan, int engine)
+nvc0_fence_context_new(struct nouveau_channel *chan)
 {
-	struct nvc0_fence_priv *priv = nv_engine(chan->dev, engine);
+	struct nouveau_fifo_chan *fifo = (void *)chan->object;
+	struct nouveau_client *client = nouveau_client(fifo);
+	struct nvc0_fence_priv *priv = chan->drm->fence;
 	struct nvc0_fence_chan *fctx;
-	int ret;
+	int ret, i;
 
-	fctx = chan->engctx[engine] = kzalloc(sizeof(*fctx), GFP_KERNEL);
+	fctx = chan->fence = kzalloc(sizeof(*fctx), GFP_KERNEL);
 	if (!fctx)
 		return -ENOMEM;
 
 	nouveau_fence_context_new(&fctx->base);
 
-	ret = nouveau_bo_vma_add(priv->bo, chan->vm, &fctx->vma);
+	ret = nouveau_bo_vma_add(priv->bo, client->vm, &fctx->vma);
 	if (ret)
-		nvc0_fence_context_del(chan, engine);
+		nvc0_fence_context_del(chan);
+
+	/* map display semaphore buffers into channel's vm */
+	for (i = 0; !ret && i < chan->drm->dev->mode_config.num_crtc; i++) {
+		struct nouveau_bo *bo;
+		if (nv_device(chan->drm->device)->card_type >= NV_D0)
+			bo = nvd0_display_crtc_sema(chan->drm->dev, i);
+		else
+			bo = nv50_display_crtc_sema(chan->drm->dev, i);
 
-	nouveau_bo_wr32(priv->bo, chan->id * 16/4, 0x00000000);
+		ret = nouveau_bo_vma_add(bo, client->vm, &fctx->dispc_vma[i]);
+	}
+
+	nouveau_bo_wr32(priv->bo, fifo->chid * 16/4, 0x00000000);
 	return ret;
 }
 
-static int
-nvc0_fence_fini(struct drm_device *dev, int engine, bool suspend)
+static bool
+nvc0_fence_suspend(struct nouveau_drm *drm)
 {
-	return 0;
+	struct nouveau_fifo *pfifo = nouveau_fifo(drm->device);
+	struct nvc0_fence_priv *priv = drm->fence;
+	int i;
+
+	priv->suspend = vmalloc((pfifo->max + 1) * sizeof(u32));
+	if (priv->suspend) {
+		for (i = 0; i <= pfifo->max; i++)
+			priv->suspend[i] = nouveau_bo_rd32(priv->bo, i);
+	}
+
+	return priv->suspend != NULL;
 }
 
-static int
-nvc0_fence_init(struct drm_device *dev, int engine)
+static void
+nvc0_fence_resume(struct nouveau_drm *drm)
 {
-	return 0;
+	struct nouveau_fifo *pfifo = nouveau_fifo(drm->device);
+	struct nvc0_fence_priv *priv = drm->fence;
+	int i;
+
+	if (priv->suspend) {
+		for (i = 0; i <= pfifo->max; i++)
+			nouveau_bo_wr32(priv->bo, i, priv->suspend[i]);
+		vfree(priv->suspend);
+		priv->suspend = NULL;
+	}
 }
 
 static void
-nvc0_fence_destroy(struct drm_device *dev, int engine)
+nvc0_fence_destroy(struct nouveau_drm *drm)
 {
-	struct drm_nouveau_private *dev_priv = dev->dev_private;
-	struct nvc0_fence_priv *priv = nv_engine(dev, engine);
-
+	struct nvc0_fence_priv *priv = drm->fence;
 	nouveau_bo_unmap(priv->bo);
 	nouveau_bo_ref(NULL, &priv->bo);
-	dev_priv->eng[engine] = NULL;
+	drm->fence = NULL;
 	kfree(priv);
 }
 
 int
-nvc0_fence_create(struct drm_device *dev)
+nvc0_fence_create(struct nouveau_drm *drm)
 {
-	struct nouveau_fifo_priv *pfifo = nv_engine(dev, NVOBJ_ENGINE_FIFO);
-	struct drm_nouveau_private *dev_priv = dev->dev_private;
+	struct nouveau_fifo *pfifo = nouveau_fifo(drm->device);
 	struct nvc0_fence_priv *priv;
 	int ret;
 
-	priv = kzalloc(sizeof(*priv), GFP_KERNEL);
+	priv = drm->fence = kzalloc(sizeof(*priv), GFP_KERNEL);
 	if (!priv)
 		return -ENOMEM;
 
-	priv->base.engine.destroy = nvc0_fence_destroy;
-	priv->base.engine.init = nvc0_fence_init;
-	priv->base.engine.fini = nvc0_fence_fini;
-	priv->base.engine.context_new = nvc0_fence_context_new;
-	priv->base.engine.context_del = nvc0_fence_context_del;
+	priv->base.dtor = nvc0_fence_destroy;
+	priv->base.suspend = nvc0_fence_suspend;
+	priv->base.resume = nvc0_fence_resume;
+	priv->base.context_new = nvc0_fence_context_new;
+	priv->base.context_del = nvc0_fence_context_del;
 	priv->base.emit = nvc0_fence_emit;
 	priv->base.sync = nvc0_fence_sync;
 	priv->base.read = nvc0_fence_read;
-	dev_priv->eng[NVOBJ_ENGINE_FENCE] = &priv->base.engine;
 
-	ret = nouveau_bo_new(dev, 16 * pfifo->channels, 0, TTM_PL_FLAG_VRAM,
-			     0, 0, NULL, &priv->bo);
+	ret = nouveau_bo_new(drm->dev, 16 * (pfifo->max + 1), 0,
+			     TTM_PL_FLAG_VRAM, 0, 0, NULL, &priv->bo);
 	if (ret == 0) {
 		ret = nouveau_bo_pin(priv->bo, TTM_PL_FLAG_VRAM);
 		if (ret == 0)
@@ -179,6 +239,6 @@ nvc0_fence_create(struct drm_device *dev)
 	}
 
 	if (ret)
-		nvc0_fence_destroy(dev, NVOBJ_ENGINE_FENCE);
+		nvc0_fence_destroy(drm);
 	return ret;
 }