Merge branch 'drm-nouveau-next' of git://anongit.freedesktop.org/git/nouveau/linux-2.6 into drm-core-next

Ben was distracted:

"Apologies for being really late with this, feel free to bash me in the
future so I remember on time!

Overview:
- improvements to reclocking (especially memory) on nva3+
- kepler accel support (if you have blob ucode)
- better inter-channel synchronisation on nv84+
- async ttm buffer moves on nv84+ (earlier cards don't have a non-PGRAPH
engine that's useful)"

* 'drm-nouveau-next' of git://anongit.freedesktop.org/git/nouveau/linux-2.6: (60 commits)
  drm/nouveau/nvd9: Fix GPIO initialisation sequence.
  drm/nouveau: Unregister switcheroo client on exit
  drm/nouveau: Check dsm on switcheroo unregister
  drm/nouveau: fix a minor annoyance in an output string
  drm/nouveau: turn a BUG into a WARN
  drm/nv50: decode PGRAPH DATA_ERROR = 0x24
  drm/nouveau/disp: fix dithering not being enabled on some eDP macbooks
  drm/nvd9/copy: initialise copy engine, seems to work like nvc0
  drm/nvc0/ttm: use copy engines for async buffer moves
  drm/nva3/ttm: use copy engine for async buffer moves
  drm/nv98/ttm: add in a (disabled) crypto engine buffer copy method
  drm/nv84/ttm: use crypto engine for async buffer copies
  drm/nouveau/ttm: untangle code to support accelerated buffer moves
  drm/nouveau/fbcon: use fence for sync, rather than notifier
  drm/nv98/crypt: non-stub implementation of the engine hooks
  drm/nouveau/fifo: turn all fifo modules into engine modules
  drm/nv50/graph: remove ability to do interrupt-driven context switching
  drm/nv50: remove manual context unload on context destruction
  drm/nv50: remove execution engine context saves on suspend
  drm/nv50/fifo: use hardware channel kickoff functionality
  ...

1 files changed, 153 insertions, 0 deletions

diff --git a/drivers/gpu/drm/nouveau/nvc0_software.c b/drivers/gpu/drm/nouveau/nvc0_software.c
new file mode 100644
index 000000000000..93e8c164fec6
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/nvc0_software.c
@@ -0,0 +1,153 @@
+/*
+ * Copyright 2012 Red Hat Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: Ben Skeggs
+ */
+
+#include "drmP.h"
+
+#include "nouveau_drv.h"
+#include "nouveau_ramht.h"
+#include "nouveau_software.h"
+
+#include "nv50_display.h"
+
+struct nvc0_software_priv {
+	struct nouveau_software_priv base;
+};
+
+struct nvc0_software_chan {
+	struct nouveau_software_chan base;
+	struct nouveau_vma dispc_vma[4];
+};
+
+u64
+nvc0_software_crtc(struct nouveau_channel *chan, int crtc)
+{
+	struct nvc0_software_chan *pch = chan->engctx[NVOBJ_ENGINE_SW];
+	return pch->dispc_vma[crtc].offset;
+}
+
+static int
+nvc0_software_context_new(struct nouveau_channel *chan, int engine)
+{
+	struct drm_device *dev = chan->dev;
+	struct drm_nouveau_private *dev_priv = dev->dev_private;
+	struct nvc0_software_priv *psw = nv_engine(dev, NVOBJ_ENGINE_SW);
+	struct nvc0_software_chan *pch;
+	int ret = 0, i;
+
+	pch = kzalloc(sizeof(*pch), GFP_KERNEL);
+	if (!pch)
+		return -ENOMEM;
+
+	nouveau_software_context_new(&pch->base);
+	chan->engctx[engine] = pch;
+
+	/* map display semaphore buffers into channel's vm */
+	for (i = 0; !ret && i < dev->mode_config.num_crtc; i++) {
+		struct nouveau_bo *bo;
+		if (dev_priv->card_type >= NV_D0)
+			bo = nvd0_display_crtc_sema(dev, i);
+		else
+			bo = nv50_display(dev)->crtc[i].sem.bo;
+
+		ret = nouveau_bo_vma_add(bo, chan->vm, &pch->dispc_vma[i]);
+	}
+
+	if (ret)
+		psw->base.base.context_del(chan, engine);
+	return ret;
+}
+
+static void
+nvc0_software_context_del(struct nouveau_channel *chan, int engine)
+{
+	struct drm_device *dev = chan->dev;
+	struct drm_nouveau_private *dev_priv = dev->dev_private;
+	struct nvc0_software_chan *pch = chan->engctx[engine];
+	int i;
+
+	if (dev_priv->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, &pch->dispc_vma[i]);
+		}
+	} else
+	if (dev_priv->card_type >= NV_50) {
+		struct nv50_display *disp = nv50_display(dev);
+		for (i = 0; i < dev->mode_config.num_crtc; i++) {
+			struct nv50_display_crtc *dispc = &disp->crtc[i];
+			nouveau_bo_vma_del(dispc->sem.bo, &pch->dispc_vma[i]);
+		}
+	}
+
+	chan->engctx[engine] = NULL;
+	kfree(pch);
+}
+
+static int
+nvc0_software_object_new(struct nouveau_channel *chan, int engine,
+			 u32 handle, u16 class)
+{
+	return 0;
+}
+
+static int
+nvc0_software_init(struct drm_device *dev, int engine)
+{
+	return 0;
+}
+
+static int
+nvc0_software_fini(struct drm_device *dev, int engine, bool suspend)
+{
+	return 0;
+}
+
+static void
+nvc0_software_destroy(struct drm_device *dev, int engine)
+{
+	struct nvc0_software_priv *psw = nv_engine(dev, engine);
+
+	NVOBJ_ENGINE_DEL(dev, SW);
+	kfree(psw);
+}
+
+int
+nvc0_software_create(struct drm_device *dev)
+{
+	struct nvc0_software_priv *psw = kzalloc(sizeof(*psw), GFP_KERNEL);
+	if (!psw)
+		return -ENOMEM;
+
+	psw->base.base.destroy = nvc0_software_destroy;
+	psw->base.base.init = nvc0_software_init;
+	psw->base.base.fini = nvc0_software_fini;
+	psw->base.base.context_new = nvc0_software_context_new;
+	psw->base.base.context_del = nvc0_software_context_del;
+	psw->base.base.object_new = nvc0_software_object_new;
+	nouveau_software_create(&psw->base);
+
+	NVOBJ_ENGINE_ADD(dev, SW, &psw->base.base);
+	NVOBJ_CLASS(dev, 0x906e, SW);
+	return 0;
+}