[PATCH v3 0/9] drm/nouveau: support for GK20A, cont'd

[PATCH v3 0/9] drm/nouveau: support for GK20A, cont'd

[Alexandre Courbot]

Changes since v2:
- Enabled software class
- Removed unneeded changes to nouveau_accel_init()
- Replaced use of architecture-private pfn_to_dma() and dma_to_pfn() with
  the portable page_to_phys()/phys_to_page()
- Fixed incorrect comment/commit log talking about bytes instead of words

Hope this looks good! Once this gets merged the next set will be to use this
driver on Jetson and Venice2 boards.

Cheers,

Alexandre Courbot (9):
  drm/nouveau/bar: only ioremap BAR3 if it exists
  drm/nouveau/bar/nvc0: support chips without BAR3
  drm/nouveau/ibus: add GK20A support
  drm/nouveau/fb: add GK20A support
  drm/nouveau/fifo: add GK20A support
  drm/nouveau/graph: enable when using external firmware
  drm/nouveau/graph: pad firmware code at load time
  drm/nouveau/graph: add GK20A support
  drm/nouveau: support for probing GK20A

 drivers/gpu/drm/nouveau/Makefile                   |   6 +
 drivers/gpu/drm/nouveau/core/engine/device/nve0.c  |  17 +++
 drivers/gpu/drm/nouveau/core/engine/fifo/gk20a.c   |  35 +++++
 drivers/gpu/drm/nouveau/core/engine/fifo/nve0.h    |   1 +
 .../gpu/drm/nouveau/core/engine/graph/ctxgk20a.c   |  53 +++++++
 .../gpu/drm/nouveau/core/engine/graph/ctxnvc0.h    |   9 ++
 .../gpu/drm/nouveau/core/engine/graph/ctxnve4.c    |  14 +-
 drivers/gpu/drm/nouveau/core/engine/graph/gk20a.c  |  47 ++++++
 drivers/gpu/drm/nouveau/core/engine/graph/nvc0.c   |  13 +-
 drivers/gpu/drm/nouveau/core/engine/graph/nvc0.h   |   2 +
 drivers/gpu/drm/nouveau/core/engine/graph/nve4.c   |   4 +-
 drivers/gpu/drm/nouveau/core/include/engine/fifo.h |   1 +
 .../gpu/drm/nouveau/core/include/engine/graph.h    |   1 +
 drivers/gpu/drm/nouveau/core/include/subdev/fb.h   |   1 +
 drivers/gpu/drm/nouveau/core/include/subdev/ibus.h |   1 +
 drivers/gpu/drm/nouveau/core/subdev/bar/base.c     |   6 +-
 drivers/gpu/drm/nouveau/core/subdev/bar/nvc0.c     | 114 +++++++-------
 drivers/gpu/drm/nouveau/core/subdev/fb/gk20a.c     |  56 +++++++
 drivers/gpu/drm/nouveau/core/subdev/fb/priv.h      |   1 +
 drivers/gpu/drm/nouveau/core/subdev/fb/ramgk20a.c  | 167 +++++++++++++++++++++
 drivers/gpu/drm/nouveau/core/subdev/ibus/gk20a.c   | 103 +++++++++++++
 21 files changed, 583 insertions(+), 69 deletions(-)
 create mode 100644 drivers/gpu/drm/nouveau/core/engine/fifo/gk20a.c
 create mode 100644 drivers/gpu/drm/nouveau/core/engine/graph/ctxgk20a.c
 create mode 100644 drivers/gpu/drm/nouveau/core/engine/graph/gk20a.c
 create mode 100644 drivers/gpu/drm/nouveau/core/subdev/fb/gk20a.c
 create mode 100644 drivers/gpu/drm/nouveau/core/subdev/fb/ramgk20a.c
 create mode 100644 drivers/gpu/drm/nouveau/core/subdev/ibus/gk20a.c

-- 
1.9.2

[PATCH v3 1/9] drm/nouveau/bar: only ioremap BAR3 if it exists

[Alexandre Courbot]

Some chips that use system memory exclusively (e.g. GK20A) do not
expose 2 BAR regions. For them only BAR1 exists, and it should be used
for USERD mapping. Do not map BAR3 if its resource does not exist.

Signed-off-by: Alexandre Courbot <acourbot-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
Reviewed-by: Thierry Reding <treding-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
---
 drivers/gpu/drm/nouveau/core/subdev/bar/base.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/nouveau/core/subdev/bar/base.c b/drivers/gpu/drm/nouveau/core/subdev/bar/base.c
index bdf594116f3f..73b1ed20c8d5 100644
--- a/drivers/gpu/drm/nouveau/core/subdev/bar/base.c
+++ b/drivers/gpu/drm/nouveau/core/subdev/bar/base.c
@@ -118,8 +118,10 @@ nouveau_bar_create_(struct nouveau_object *parent,
 	if (ret)
 		return ret;
 
-	bar->iomem = ioremap(nv_device_resource_start(device, 3),
-			     nv_device_resource_len(device, 3));
+	if (nv_device_resource_len(device, 3) != 0)
+		bar->iomem = ioremap(nv_device_resource_start(device, 3),
+				     nv_device_resource_len(device, 3));
+
 	return 0;
 }
 
-- 
1.9.2

[PATCH v3 2/9] drm/nouveau/bar/nvc0: support chips without BAR3

[Alexandre Courbot]

Adapt the NVC0 BAR driver to make it able to support chips that do not
expose a BAR3. When this happens, BAR1 is then used for USERD mapping
and the BAR alloc() functions is disabled, making GPU objects unable
to rely on BAR for data access and falling back to PRAMIN.

Signed-off-by: Alexandre Courbot <acourbot-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
---
 drivers/gpu/drm/nouveau/core/subdev/bar/nvc0.c | 114 +++++++++++++------------
 1 file changed, 59 insertions(+), 55 deletions(-)

diff --git a/drivers/gpu/drm/nouveau/core/subdev/bar/nvc0.c b/drivers/gpu/drm/nouveau/core/subdev/bar/nvc0.c
index 3f30db62e656..ca8139b9ab27 100644
--- a/drivers/gpu/drm/nouveau/core/subdev/bar/nvc0.c
+++ b/drivers/gpu/drm/nouveau/core/subdev/bar/nvc0.c
@@ -30,14 +30,16 @@
 
 #include "priv.h"
 
+struct nvc0_bar_priv_vm {
+	struct nouveau_gpuobj *mem;
+	struct nouveau_gpuobj *pgd;
+	struct nouveau_vm *vm;
+};
+
 struct nvc0_bar_priv {
 	struct nouveau_bar base;
 	spinlock_t lock;
-	struct {
-		struct nouveau_gpuobj *mem;
-		struct nouveau_gpuobj *pgd;
-		struct nouveau_vm *vm;
-	} bar[2];
+	struct nvc0_bar_priv_vm bar[2];
 };
 
 static int
@@ -79,87 +81,87 @@ nvc0_bar_unmap(struct nouveau_bar *bar, struct nouveau_vma *vma)
 }
 
 static int
-nvc0_bar_ctor(struct nouveau_object *parent, struct nouveau_object *engine,
-	      struct nouveau_oclass *oclass, void *data, u32 size,
-	      struct nouveau_object **pobject)
+nvc0_bar_init_vm(struct nvc0_bar_priv *priv, struct nvc0_bar_priv_vm *bar_vm,
+		 int bar_nr)
 {
-	struct nouveau_device *device = nv_device(parent);
-	struct nvc0_bar_priv *priv;
-	struct nouveau_gpuobj *mem;
+	struct nouveau_device *device = nv_device(&priv->base);
 	struct nouveau_vm *vm;
+	resource_size_t bar_len;
 	int ret;
 
-	ret = nouveau_bar_create(parent, engine, oclass, &priv);
-	*pobject = nv_object(priv);
-	if (ret)
-		return ret;
-
-	/* BAR3 */
 	ret = nouveau_gpuobj_new(nv_object(priv), NULL, 0x1000, 0, 0,
-				&priv->bar[0].mem);
-	mem = priv->bar[0].mem;
+				&bar_vm->mem);
 	if (ret)
 		return ret;
 
 	ret = nouveau_gpuobj_new(nv_object(priv), NULL, 0x8000, 0, 0,
-				&priv->bar[0].pgd);
+				&bar_vm->pgd);
 	if (ret)
 		return ret;
 
-	ret = nouveau_vm_new(device, 0, nv_device_resource_len(device, 3), 0, &vm);
+	bar_len = nv_device_resource_len(device, bar_nr);
+
+	ret = nouveau_vm_new(device, 0, bar_len, 0, &vm);
 	if (ret)
 		return ret;
 
 	atomic_inc(&vm->engref[NVDEV_SUBDEV_BAR]);
 
-	ret = nouveau_gpuobj_new(nv_object(priv), NULL,
-				 (nv_device_resource_len(device, 3) >> 12) * 8,
-				 0x1000, NVOBJ_FLAG_ZERO_ALLOC,
-				 &vm->pgt[0].obj[0]);
-	vm->pgt[0].refcount[0] = 1;
-	if (ret)
-		return ret;
+	/*
+	 * Bootstrap page table lookup.
+	 */
+	if (bar_nr == 3) {
+		ret = nouveau_gpuobj_new(nv_object(priv), NULL,
+					 (bar_len >> 12) * 8, 0x1000,
+					 NVOBJ_FLAG_ZERO_ALLOC,
+					&vm->pgt[0].obj[0]);
+		vm->pgt[0].refcount[0] = 1;
+		if (ret)
+			return ret;
+	}
 
-	ret = nouveau_vm_ref(vm, &priv->bar[0].vm, priv->bar[0].pgd);
+	ret = nouveau_vm_ref(vm, &bar_vm->vm, bar_vm->pgd);
 	nouveau_vm_ref(NULL, &vm, NULL);
 	if (ret)
 		return ret;
 
-	nv_wo32(mem, 0x0200, lower_32_bits(priv->bar[0].pgd->addr));
-	nv_wo32(mem, 0x0204, upper_32_bits(priv->bar[0].pgd->addr));
-	nv_wo32(mem, 0x0208, lower_32_bits(nv_device_resource_len(device, 3) - 1));
-	nv_wo32(mem, 0x020c, upper_32_bits(nv_device_resource_len(device, 3) - 1));
+	nv_wo32(bar_vm->mem, 0x0200, lower_32_bits(bar_vm->pgd->addr));
+	nv_wo32(bar_vm->mem, 0x0204, upper_32_bits(bar_vm->pgd->addr));
+	nv_wo32(bar_vm->mem, 0x0208, lower_32_bits(bar_len - 1));
+	nv_wo32(bar_vm->mem, 0x020c, upper_32_bits(bar_len - 1));
 
-	/* BAR1 */
-	ret = nouveau_gpuobj_new(nv_object(priv), NULL, 0x1000, 0, 0,
-				&priv->bar[1].mem);
-	mem = priv->bar[1].mem;
-	if (ret)
-		return ret;
+	return 0;
+}
 
-	ret = nouveau_gpuobj_new(nv_object(priv), NULL, 0x8000, 0, 0,
-				&priv->bar[1].pgd);
-	if (ret)
-		return ret;
+static int
+nvc0_bar_ctor(struct nouveau_object *parent, struct nouveau_object *engine,
+	      struct nouveau_oclass *oclass, void *data, u32 size,
+	      struct nouveau_object **pobject)
+{
+	struct nouveau_device *device = nv_device(parent);
+	struct nvc0_bar_priv *priv;
+	bool has_bar3 = nv_device_resource_len(device, 3) != 0;
+	int ret;
 
-	ret = nouveau_vm_new(device, 0, nv_device_resource_len(device, 1), 0, &vm);
+	ret = nouveau_bar_create(parent, engine, oclass, &priv);
+	*pobject = nv_object(priv);
 	if (ret)
 		return ret;
 
-	atomic_inc(&vm->engref[NVDEV_SUBDEV_BAR]);
+	/* BAR3 */
+	if (has_bar3) {
+		ret = nvc0_bar_init_vm(priv, &priv->bar[0], 3);
+		if (ret)
+			return ret;
+		priv->base.alloc = nouveau_bar_alloc;
+		priv->base.kmap = nvc0_bar_kmap;
+	}
 
-	ret = nouveau_vm_ref(vm, &priv->bar[1].vm, priv->bar[1].pgd);
-	nouveau_vm_ref(NULL, &vm, NULL);
+	/* BAR1 */
+	ret = nvc0_bar_init_vm(priv, &priv->bar[1], 1);
 	if (ret)
 		return ret;
 
-	nv_wo32(mem, 0x0200, lower_32_bits(priv->bar[1].pgd->addr));
-	nv_wo32(mem, 0x0204, upper_32_bits(priv->bar[1].pgd->addr));
-	nv_wo32(mem, 0x0208, lower_32_bits(nv_device_resource_len(device, 1) - 1));
-	nv_wo32(mem, 0x020c, upper_32_bits(nv_device_resource_len(device, 1) - 1));
-
-	priv->base.alloc = nouveau_bar_alloc;
-	priv->base.kmap = nvc0_bar_kmap;
 	priv->base.umap = nvc0_bar_umap;
 	priv->base.unmap = nvc0_bar_unmap;
 	priv->base.flush = nv84_bar_flush;
@@ -201,7 +203,9 @@ nvc0_bar_init(struct nouveau_object *object)
 	nv_mask(priv, 0x100c80, 0x00000001, 0x00000000);
 
 	nv_wr32(priv, 0x001704, 0x80000000 | priv->bar[1].mem->addr >> 12);
-	nv_wr32(priv, 0x001714, 0xc0000000 | priv->bar[0].mem->addr >> 12);
+	if (priv->bar[0].mem)
+		nv_wr32(priv, 0x001714,
+			0xc0000000 | priv->bar[0].mem->addr >> 12);
 	return 0;
 }
 
-- 
1.9.2

[PATCH v3 3/9] drm/nouveau/ibus: add GK20A support

[Alexandre Courbot]

Add support for initializing the priv ring of GK20A. This is done by the
BIOS on desktop GPUs, but needs to be done by hand on Tegra.

Signed-off-by: Alexandre Courbot <acourbot-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
---
 drivers/gpu/drm/nouveau/Makefile                   |   1 +
 drivers/gpu/drm/nouveau/core/include/subdev/ibus.h |   1 +
 drivers/gpu/drm/nouveau/core/subdev/ibus/gk20a.c   | 103 +++++++++++++++++++++
 3 files changed, 105 insertions(+)
 create mode 100644 drivers/gpu/drm/nouveau/core/subdev/ibus/gk20a.c

diff --git a/drivers/gpu/drm/nouveau/Makefile b/drivers/gpu/drm/nouveau/Makefile
index b7d216264775..bc5fb24630e6 100644
--- a/drivers/gpu/drm/nouveau/Makefile
+++ b/drivers/gpu/drm/nouveau/Makefile
@@ -136,6 +136,7 @@ nouveau-y += core/subdev/i2c/nv94.o
 nouveau-y += core/subdev/i2c/nvd0.o
 nouveau-y += core/subdev/ibus/nvc0.o
 nouveau-y += core/subdev/ibus/nve0.o
+nouveau-y += core/subdev/ibus/gk20a.o
 nouveau-y += core/subdev/instmem/base.o
 nouveau-y += core/subdev/instmem/nv04.o
 nouveau-y += core/subdev/instmem/nv40.o
diff --git a/drivers/gpu/drm/nouveau/core/include/subdev/ibus.h b/drivers/gpu/drm/nouveau/core/include/subdev/ibus.h
index 88814f159d89..31df634c0fdc 100644
--- a/drivers/gpu/drm/nouveau/core/include/subdev/ibus.h
+++ b/drivers/gpu/drm/nouveau/core/include/subdev/ibus.h
@@ -30,5 +30,6 @@ nouveau_ibus(void *obj)
 
 extern struct nouveau_oclass nvc0_ibus_oclass;
 extern struct nouveau_oclass nve0_ibus_oclass;
+extern struct nouveau_oclass gk20a_ibus_oclass;
 
 #endif
diff --git a/drivers/gpu/drm/nouveau/core/subdev/ibus/gk20a.c b/drivers/gpu/drm/nouveau/core/subdev/ibus/gk20a.c
new file mode 100644
index 000000000000..245f0ebaa6af
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/core/subdev/ibus/gk20a.c
@@ -0,0 +1,103 @@
+/*
+ * Copyright (c) 2014, NVIDIA CORPORATION. All rights reserved.
+ *
+ * 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 AUTHORS OR COPYRIGHT HOLDERS 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.
+ */
+
+#include <subdev/ibus.h>
+#include <subdev/timer.h>
+
+struct gk20a_ibus_priv {
+	struct nouveau_ibus base;
+};
+
+static void
+gk20a_ibus_init_priv_ring(struct gk20a_ibus_priv *priv)
+{
+	nv_mask(priv, 0x137250, 0x3f, 0);
+
+	nv_mask(priv, 0x000200, 0x20, 0);
+	usleep_range(20, 30);
+	nv_mask(priv, 0x000200, 0x20, 0x20);
+
+	nv_wr32(priv, 0x12004c, 0x4);
+	nv_wr32(priv, 0x122204, 0x2);
+	nv_rd32(priv, 0x122204);
+}
+
+static void
+gk20a_ibus_intr(struct nouveau_subdev *subdev)
+{
+	struct gk20a_ibus_priv *priv = (void *)subdev;
+	u32 status0 = nv_rd32(priv, 0x120058);
+
+	if (status0 & 0x7) {
+		nv_debug(priv, "resetting priv ring\n");
+		gk20a_ibus_init_priv_ring(priv);
+	}
+
+	/* Acknowledge interrupt */
+	nv_mask(priv, 0x12004c, 0x2, 0x2);
+
+	if (!nv_wait(subdev, 0x12004c, 0x3f, 0x00))
+		nv_warn(priv, "timeout waiting for ringmaster ack\n");
+}
+
+static int
+gk20a_ibus_init(struct nouveau_object *object)
+{
+	struct gk20a_ibus_priv *priv = (void *)object;
+	int ret;
+
+	ret = _nouveau_ibus_init(object);
+	if (ret)
+		return ret;
+
+	gk20a_ibus_init_priv_ring(priv);
+
+	return 0;
+}
+
+static int
+gk20a_ibus_ctor(struct nouveau_object *parent, struct nouveau_object *engine,
+	       struct nouveau_oclass *oclass, void *data, u32 size,
+	       struct nouveau_object **pobject)
+{
+	struct gk20a_ibus_priv *priv;
+	int ret;
+
+	ret = nouveau_ibus_create(parent, engine, oclass, &priv);
+	*pobject = nv_object(priv);
+	if (ret)
+		return ret;
+
+	nv_subdev(priv)->intr = gk20a_ibus_intr;
+	return 0;
+}
+
+struct nouveau_oclass
+gk20a_ibus_oclass = {
+	.handle = NV_SUBDEV(IBUS, 0xea),
+	.ofuncs = &(struct nouveau_ofuncs) {
+		.ctor = gk20a_ibus_ctor,
+		.dtor = _nouveau_ibus_dtor,
+		.init = gk20a_ibus_init,
+		.fini = _nouveau_ibus_fini,
+	},
+};
-- 
1.9.2

[PATCH v3 4/9] drm/nouveau/fb: add GK20A support

[Alexandre Courbot]

Add a simple FB device for GK20A, as well as a RAM implementation based
on contiguous DMA memory allocations suitable for chips that use system
memory as video RAM.

Signed-off-by: Alexandre Courbot <acourbot-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
---
 drivers/gpu/drm/nouveau/Makefile                  |   2 +
 drivers/gpu/drm/nouveau/core/include/subdev/fb.h  |   1 +
 drivers/gpu/drm/nouveau/core/subdev/fb/gk20a.c    |  56 ++++++++
 drivers/gpu/drm/nouveau/core/subdev/fb/priv.h     |   1 +
 drivers/gpu/drm/nouveau/core/subdev/fb/ramgk20a.c | 167 ++++++++++++++++++++++
 5 files changed, 227 insertions(+)
 create mode 100644 drivers/gpu/drm/nouveau/core/subdev/fb/gk20a.c
 create mode 100644 drivers/gpu/drm/nouveau/core/subdev/fb/ramgk20a.c

diff --git a/drivers/gpu/drm/nouveau/Makefile b/drivers/gpu/drm/nouveau/Makefile
index bc5fb24630e6..34fef246e779 100644
--- a/drivers/gpu/drm/nouveau/Makefile
+++ b/drivers/gpu/drm/nouveau/Makefile
@@ -102,6 +102,7 @@ nouveau-y += core/subdev/fb/nvaa.o
 nouveau-y += core/subdev/fb/nvaf.o
 nouveau-y += core/subdev/fb/nvc0.o
 nouveau-y += core/subdev/fb/nve0.o
+nouveau-y += core/subdev/fb/gk20a.o
 nouveau-y += core/subdev/fb/gm107.o
 nouveau-y += core/subdev/fb/ramnv04.o
 nouveau-y += core/subdev/fb/ramnv10.o
@@ -117,6 +118,7 @@ nouveau-y += core/subdev/fb/ramnva3.o
 nouveau-y += core/subdev/fb/ramnvaa.o
 nouveau-y += core/subdev/fb/ramnvc0.o
 nouveau-y += core/subdev/fb/ramnve0.o
+nouveau-y += core/subdev/fb/ramgk20a.o
 nouveau-y += core/subdev/fb/ramgm107.o
 nouveau-y += core/subdev/fb/sddr3.o
 nouveau-y += core/subdev/fb/gddr5.o
diff --git a/drivers/gpu/drm/nouveau/core/include/subdev/fb.h b/drivers/gpu/drm/nouveau/core/include/subdev/fb.h
index 58c7ccdebb01..871e73914b24 100644
--- a/drivers/gpu/drm/nouveau/core/include/subdev/fb.h
+++ b/drivers/gpu/drm/nouveau/core/include/subdev/fb.h
@@ -105,6 +105,7 @@ extern struct nouveau_oclass *nvaa_fb_oclass;
 extern struct nouveau_oclass *nvaf_fb_oclass;
 extern struct nouveau_oclass *nvc0_fb_oclass;
 extern struct nouveau_oclass *nve0_fb_oclass;
+extern struct nouveau_oclass *gk20a_fb_oclass;
 extern struct nouveau_oclass *gm107_fb_oclass;
 
 #include <subdev/bios/ramcfg.h>
diff --git a/drivers/gpu/drm/nouveau/core/subdev/fb/gk20a.c b/drivers/gpu/drm/nouveau/core/subdev/fb/gk20a.c
new file mode 100644
index 000000000000..a16024a74771
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/core/subdev/fb/gk20a.c
@@ -0,0 +1,56 @@
+/*
+ * Copyright (c) 2014, NVIDIA CORPORATION. All rights reserved.
+ *
+ * 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 AUTHORS OR COPYRIGHT HOLDERS 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.
+ */
+
+#include "nvc0.h"
+
+struct gk20a_fb_priv {
+	struct nouveau_fb base;
+};
+
+static int
+gk20a_fb_ctor(struct nouveau_object *parent, struct nouveau_object *engine,
+	     struct nouveau_oclass *oclass, void *data, u32 size,
+	     struct nouveau_object **pobject)
+{
+	struct gk20a_fb_priv *priv;
+	int ret;
+
+	ret = nouveau_fb_create(parent, engine, oclass, &priv);
+	*pobject = nv_object(priv);
+	if (ret)
+		return ret;
+
+	return 0;
+}
+
+struct nouveau_oclass *
+gk20a_fb_oclass = &(struct nouveau_fb_impl) {
+	.base.handle = NV_SUBDEV(FB, 0xea),
+	.base.ofuncs = &(struct nouveau_ofuncs) {
+		.ctor = gk20a_fb_ctor,
+		.dtor = _nouveau_fb_dtor,
+		.init = _nouveau_fb_init,
+		.fini = _nouveau_fb_fini,
+	},
+	.memtype = nvc0_fb_memtype_valid,
+	.ram = &gk20a_ram_oclass,
+}.base;
diff --git a/drivers/gpu/drm/nouveau/core/subdev/fb/priv.h b/drivers/gpu/drm/nouveau/core/subdev/fb/priv.h
index da74c889aed4..82273f832e42 100644
--- a/drivers/gpu/drm/nouveau/core/subdev/fb/priv.h
+++ b/drivers/gpu/drm/nouveau/core/subdev/fb/priv.h
@@ -32,6 +32,7 @@ extern struct nouveau_oclass nva3_ram_oclass;
 extern struct nouveau_oclass nvaa_ram_oclass;
 extern struct nouveau_oclass nvc0_ram_oclass;
 extern struct nouveau_oclass nve0_ram_oclass;
+extern struct nouveau_oclass gk20a_ram_oclass;
 extern struct nouveau_oclass gm107_ram_oclass;
 
 int nouveau_sddr3_calc(struct nouveau_ram *ram);
diff --git a/drivers/gpu/drm/nouveau/core/subdev/fb/ramgk20a.c b/drivers/gpu/drm/nouveau/core/subdev/fb/ramgk20a.c
new file mode 100644
index 000000000000..d3f997956d0c
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/core/subdev/fb/ramgk20a.c
@@ -0,0 +1,167 @@
+/*
+ * Copyright (c) 2014, NVIDIA CORPORATION. All rights reserved.
+ *
+ * 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 AUTHORS OR COPYRIGHT HOLDERS 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.
+ */
+
+#include "priv.h"
+
+#include <subdev/fb.h>
+
+#include <linux/mm.h>
+#include <linux/types.h>
+#include <linux/dma-contiguous.h>
+
+static void
+gk20a_ram_put(struct nouveau_fb *pfb, struct nouveau_mem **pmem)
+{
+	struct device *dev = nv_device_base(nv_device(pfb));
+	struct nouveau_mem *mem = *pmem;
+	int i;
+
+	*pmem = NULL;
+
+	for (i = 0; i < mem->size; i++) {
+		struct page *page;
+
+		if (mem->pages[i] == 0)
+			break;
+
+		page = phys_to_page(mem->pages[i]);
+		dma_release_from_contiguous(dev, page, 1);
+	}
+
+	kfree(mem->pages);
+	kfree(mem);
+}
+
+static int
+gk20a_ram_get(struct nouveau_fb *pfb, u64 size, u32 align, u32 ncmin,
+	     u32 memtype, struct nouveau_mem **pmem)
+{
+	struct device *dev = nv_device_base(nv_device(pfb));
+	struct nouveau_mem *mem;
+	int type = memtype & 0xff;
+	dma_addr_t dma_addr;
+	int npages;
+	int order;
+	int i;
+
+	nv_debug(pfb, "%s: size: %llx align: %x, ncmin: %x\n", __func__, size,
+		 align, ncmin);
+
+	npages = size >> PAGE_SHIFT;
+	if (npages == 0)
+		npages = 1;
+
+	if (align == 0)
+		align = PAGE_SIZE;
+	align >>= PAGE_SHIFT;
+
+	/* round alignment to the next power of 2, if needed */
+	order = fls(align);
+	if ((align & (align - 1)) == 0)
+		order--;
+
+	ncmin >>= PAGE_SHIFT;
+	/*
+	 * allocate pages by chunks of "align" size, otherwise we may leave
+	 * holes in the contiguous memory area.
+	 */
+	if (ncmin == 0)
+		ncmin = npages;
+	else if (align > ncmin)
+		ncmin = align;
+
+	mem = kzalloc(sizeof(*mem), GFP_KERNEL);
+	if (!mem)
+		return -ENOMEM;
+
+	mem->size = npages;
+	mem->memtype = type;
+
+	mem->pages = kzalloc(sizeof(dma_addr_t) * npages, GFP_KERNEL);
+	if (!mem) {
+		kfree(mem);
+		return -ENOMEM;
+	}
+
+	while (npages) {
+		struct page *pages;
+		int pos = 0;
+
+		/* don't overflow in case size is not a multiple of ncmin */
+		if (ncmin > npages)
+			ncmin = npages;
+
+		pages = dma_alloc_from_contiguous(dev, ncmin, order);
+		if (!pages) {
+			gk20a_ram_put(pfb, &mem);
+			return -ENOMEM;
+		}
+
+		dma_addr = page_to_phys(pages);
+
+		nv_debug(pfb, "  alloc count: %x, order: %x, addr: %x\n", ncmin,
+			 order, dma_addr);
+
+		for (i = 0; i < ncmin; i++)
+			mem->pages[pos + i] = dma_addr + (PAGE_SIZE * i);
+
+		pos += ncmin;
+		npages -= ncmin;
+	}
+
+	mem->offset = (u64)mem->pages[0];
+
+	*pmem = mem;
+
+	return 0;
+}
+
+static int
+gk20a_ram_ctor(struct nouveau_object *parent, struct nouveau_object *engine,
+	      struct nouveau_oclass *oclass, void *data, u32 datasize,
+	      struct nouveau_object **pobject)
+{
+	struct nouveau_ram *ram;
+	int ret;
+
+	ret = nouveau_ram_create(parent, engine, oclass, &ram);
+	*pobject = nv_object(ram);
+	if (ret)
+		return ret;
+	ram->type = NV_MEM_TYPE_STOLEN;
+	ram->size = get_num_physpages() << PAGE_SHIFT;
+
+	ram->get = gk20a_ram_get;
+	ram->put = gk20a_ram_put;
+
+	return 0;
+}
+
+struct nouveau_oclass
+gk20a_ram_oclass = {
+	.ofuncs = &(struct nouveau_ofuncs) {
+		.ctor = gk20a_ram_ctor,
+		.dtor = _nouveau_ram_dtor,
+		.init = _nouveau_ram_init,
+		.fini = _nouveau_ram_fini,
+	},
+};
-- 
1.9.2

[PATCH v3 5/9] drm/nouveau/fifo: add GK20A support

[Alexandre Courbot]

GK20A's FIFO is compatible with NVE0, but only features 128 channels and
1 runlist.

Signed-off-by: Alexandre Courbot <acourbot-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
Reviewed-by: Thierry Reding <treding-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
---
 drivers/gpu/drm/nouveau/Makefile                   |  1 +
 drivers/gpu/drm/nouveau/core/engine/fifo/gk20a.c   | 35 ++++++++++++++++++++++
 drivers/gpu/drm/nouveau/core/engine/fifo/nve0.h    |  1 +
 drivers/gpu/drm/nouveau/core/include/engine/fifo.h |  1 +
 4 files changed, 38 insertions(+)
 create mode 100644 drivers/gpu/drm/nouveau/core/engine/fifo/gk20a.c

diff --git a/drivers/gpu/drm/nouveau/Makefile b/drivers/gpu/drm/nouveau/Makefile
index 34fef246e779..e6fe53bab593 100644
--- a/drivers/gpu/drm/nouveau/Makefile
+++ b/drivers/gpu/drm/nouveau/Makefile
@@ -248,6 +248,7 @@ nouveau-y += core/engine/fifo/nv50.o
 nouveau-y += core/engine/fifo/nv84.o
 nouveau-y += core/engine/fifo/nvc0.o
 nouveau-y += core/engine/fifo/nve0.o
+nouveau-y += core/engine/fifo/gk20a.o
 nouveau-y += core/engine/fifo/nv108.o
 nouveau-y += core/engine/graph/ctxnv40.o
 nouveau-y += core/engine/graph/ctxnv50.o
diff --git a/drivers/gpu/drm/nouveau/core/engine/fifo/gk20a.c b/drivers/gpu/drm/nouveau/core/engine/fifo/gk20a.c
new file mode 100644
index 000000000000..327456eae963
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/core/engine/fifo/gk20a.c
@@ -0,0 +1,35 @@
+/*
+ * Copyright (c) 2014, NVIDIA CORPORATION. All rights reserved.
+ *
+ * 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 AUTHORS OR COPYRIGHT HOLDERS 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.
+ */
+
+#include "nve0.h"
+
+struct nouveau_oclass *
+gk20a_fifo_oclass = &(struct nve0_fifo_impl) {
+	.base.handle = NV_ENGINE(FIFO, 0xea),
+	.base.ofuncs = &(struct nouveau_ofuncs) {
+		.ctor = nve0_fifo_ctor,
+		.dtor = nve0_fifo_dtor,
+		.init = nve0_fifo_init,
+		.fini = nve0_fifo_fini,
+	},
+	.channels = 128,
+}.base;
diff --git a/drivers/gpu/drm/nouveau/core/engine/fifo/nve0.h b/drivers/gpu/drm/nouveau/core/engine/fifo/nve0.h
index 014344ebee66..e96b32bb1bbc 100644
--- a/drivers/gpu/drm/nouveau/core/engine/fifo/nve0.h
+++ b/drivers/gpu/drm/nouveau/core/engine/fifo/nve0.h
@@ -8,6 +8,7 @@ int  nve0_fifo_ctor(struct nouveau_object *, struct nouveau_object *,
 		    struct nouveau_object **);
 void nve0_fifo_dtor(struct nouveau_object *);
 int  nve0_fifo_init(struct nouveau_object *);
+int  nve0_fifo_fini(struct nouveau_object *, bool);
 
 struct nve0_fifo_impl {
 	struct nouveau_oclass base;
diff --git a/drivers/gpu/drm/nouveau/core/include/engine/fifo.h b/drivers/gpu/drm/nouveau/core/include/engine/fifo.h
index 26b6b2bb1112..b639eb2c74ff 100644
--- a/drivers/gpu/drm/nouveau/core/include/engine/fifo.h
+++ b/drivers/gpu/drm/nouveau/core/include/engine/fifo.h
@@ -109,6 +109,7 @@ extern struct nouveau_oclass *nv50_fifo_oclass;
 extern struct nouveau_oclass *nv84_fifo_oclass;
 extern struct nouveau_oclass *nvc0_fifo_oclass;
 extern struct nouveau_oclass *nve0_fifo_oclass;
+extern struct nouveau_oclass *gk20a_fifo_oclass;
 extern struct nouveau_oclass *nv108_fifo_oclass;
 
 void nv04_fifo_intr(struct nouveau_subdev *);
-- 
1.9.2

[PATCH v3 6/9] drm/nouveau/graph: enable when using external firmware

[Alexandre Courbot]

nvc0_graph_ctor() would only let the graphics engine be enabled if its
oclass has a proper microcode linked to it. This prevents GR from being
enabled at all on chips that rely exclusively on external firmware, even
though such a use-case is valid.

Relax the conditions enabling the GR engine to also include the case
where an external firmware has also been loaded.

Signed-off-by: Alexandre Courbot <acourbot-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
---
 drivers/gpu/drm/nouveau/core/engine/graph/nvc0.c | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/nouveau/core/engine/graph/nvc0.c b/drivers/gpu/drm/nouveau/core/engine/graph/nvc0.c
index f3c7329da0a0..e5b75f189988 100644
--- a/drivers/gpu/drm/nouveau/core/engine/graph/nvc0.c
+++ b/drivers/gpu/drm/nouveau/core/engine/graph/nvc0.c
@@ -1259,10 +1259,13 @@ nvc0_graph_ctor(struct nouveau_object *parent, struct nouveau_object *engine,
 	struct nvc0_graph_oclass *oclass = (void *)bclass;
 	struct nouveau_device *device = nv_device(parent);
 	struct nvc0_graph_priv *priv;
+	bool use_ext_fw, enable;
 	int ret, i;
 
-	ret = nouveau_graph_create(parent, engine, bclass,
-				   (oclass->fecs.ucode != NULL), &priv);
+	use_ext_fw = nouveau_boolopt(device->cfgopt, "NvGrUseFW", false);
+	enable = use_ext_fw || oclass->fecs.ucode != NULL;
+
+	ret = nouveau_graph_create(parent, engine, bclass, enable, &priv);
 	*pobject = nv_object(priv);
 	if (ret)
 		return ret;
@@ -1272,7 +1275,7 @@ nvc0_graph_ctor(struct nouveau_object *parent, struct nouveau_object *engine,
 
 	priv->base.units = nvc0_graph_units;
 
-	if (nouveau_boolopt(device->cfgopt, "NvGrUseFW", false)) {
+	if (use_ext_fw) {
 		nv_info(priv, "using external firmware\n");
 		if (nvc0_graph_ctor_fw(priv, "fuc409c", &priv->fuc409c) ||
 		    nvc0_graph_ctor_fw(priv, "fuc409d", &priv->fuc409d) ||
-- 
1.9.2

Re: [PATCH v3 6/9] drm/nouveau/graph: enable when using external firmware

[Ben Skeggs]

On Fri, Apr 25, 2014 at 5:19 PM, Alexandre Courbot <acourbot-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org> wrote:
> nvc0_graph_ctor() would only let the graphics engine be enabled if its
> oclass has a proper microcode linked to it. This prevents GR from being
> enabled at all on chips that rely exclusively on external firmware, even
> though such a use-case is valid.
>
> Relax the conditions enabling the GR engine to also include the case
> where an external firmware has also been loaded.
I'm happy to take this patch as-is.  I do wonder if we should do
something like this though:

if (nouveau_boolopt(device->cfgopt, "NvGrUseFW", oclass->fecs.ucode == NULL))

Which will automatically switch to external firmware if there's no
internal implementation available.

Thoughts?  This could be a separate patch even, if preferred.

Thanks,
Ben.

>
> Signed-off-by: Alexandre Courbot <acourbot-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
> ---
>  drivers/gpu/drm/nouveau/core/engine/graph/nvc0.c | 9 ++++++---
>  1 file changed, 6 insertions(+), 3 deletions(-)
>
> diff --git a/drivers/gpu/drm/nouveau/core/engine/graph/nvc0.c b/drivers/gpu/drm/nouveau/core/engine/graph/nvc0.c
> index f3c7329da0a0..e5b75f189988 100644
> --- a/drivers/gpu/drm/nouveau/core/engine/graph/nvc0.c
> +++ b/drivers/gpu/drm/nouveau/core/engine/graph/nvc0.c
> @@ -1259,10 +1259,13 @@ nvc0_graph_ctor(struct nouveau_object *parent, struct nouveau_object *engine,
>         struct nvc0_graph_oclass *oclass = (void *)bclass;
>         struct nouveau_device *device = nv_device(parent);
>         struct nvc0_graph_priv *priv;
> +       bool use_ext_fw, enable;
>         int ret, i;
>
> -       ret = nouveau_graph_create(parent, engine, bclass,
> -                                  (oclass->fecs.ucode != NULL), &priv);
> +       use_ext_fw = nouveau_boolopt(device->cfgopt, "NvGrUseFW", false);
> +       enable = use_ext_fw || oclass->fecs.ucode != NULL;
> +
> +       ret = nouveau_graph_create(parent, engine, bclass, enable, &priv);
>         *pobject = nv_object(priv);
>         if (ret)
>                 return ret;
> @@ -1272,7 +1275,7 @@ nvc0_graph_ctor(struct nouveau_object *parent, struct nouveau_object *engine,
>
>         priv->base.units = nvc0_graph_units;
>
> -       if (nouveau_boolopt(device->cfgopt, "NvGrUseFW", false)) {
> +       if (use_ext_fw) {
>                 nv_info(priv, "using external firmware\n");
>                 if (nvc0_graph_ctor_fw(priv, "fuc409c", &priv->fuc409c) ||
>                     nvc0_graph_ctor_fw(priv, "fuc409d", &priv->fuc409d) ||
> --
> 1.9.2
>
> _______________________________________________
> Nouveau mailing list
> Nouveau-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org
> http://lists.freedesktop.org/mailman/listinfo/nouveau

Re: [Nouveau] [PATCH v3 6/9] drm/nouveau/graph: enable when using external firmware

[Thierry Reding]

[-- Attachment #1.1: Type: text/plain, Size: 1130 bytes --]

On Mon, Apr 28, 2014 at 12:10:27PM +1000, Ben Skeggs wrote:
> On Fri, Apr 25, 2014 at 5:19 PM, Alexandre Courbot <acourbot@nvidia.com> wrote:
> > nvc0_graph_ctor() would only let the graphics engine be enabled if its
> > oclass has a proper microcode linked to it. This prevents GR from being
> > enabled at all on chips that rely exclusively on external firmware, even
> > though such a use-case is valid.
> >
> > Relax the conditions enabling the GR engine to also include the case
> > where an external firmware has also been loaded.
> I'm happy to take this patch as-is.  I do wonder if we should do
> something like this though:
> 
> if (nouveau_boolopt(device->cfgopt, "NvGrUseFW", oclass->fecs.ucode == NULL))
> 
> Which will automatically switch to external firmware if there's no
> internal implementation available.

I think that makes a lot of sense. Perhaps outputting a warning or so at
runtime when this happens would be helpful in reminding people that the
goal is to make the GPU run with nouveau firmware rather than external
firmware, and hence that there's some work left to do.

Thierry

[-- Attachment #1.2: Type: application/pgp-signature, Size: 836 bytes --]

[-- Attachment #2: Type: text/plain, Size: 159 bytes --]

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Re: [Nouveau] [PATCH v3 6/9] drm/nouveau/graph: enable when using external firmware

[Ben Skeggs]

On Mon, Apr 28, 2014 at 4:57 PM, Thierry Reding
<thierry.reding@gmail.com> wrote:
> On Mon, Apr 28, 2014 at 12:10:27PM +1000, Ben Skeggs wrote:
>> On Fri, Apr 25, 2014 at 5:19 PM, Alexandre Courbot <acourbot@nvidia.com> wrote:
>> > nvc0_graph_ctor() would only let the graphics engine be enabled if its
>> > oclass has a proper microcode linked to it. This prevents GR from being
>> > enabled at all on chips that rely exclusively on external firmware, even
>> > though such a use-case is valid.
>> >
>> > Relax the conditions enabling the GR engine to also include the case
>> > where an external firmware has also been loaded.
>> I'm happy to take this patch as-is.  I do wonder if we should do
>> something like this though:
>>
>> if (nouveau_boolopt(device->cfgopt, "NvGrUseFW", oclass->fecs.ucode == NULL))
>>
>> Which will automatically switch to external firmware if there's no
>> internal implementation available.
>
> I think that makes a lot of sense. Perhaps outputting a warning or so at
> runtime when this happens would be helpful in reminding people that the
> goal is to make the GPU run with nouveau firmware rather than external
> firmware, and hence that there's some work left to do.
That already happens with a "using external firmware" notice.

>
> Thierry

Re: [PATCH v3 6/9] drm/nouveau/graph: enable when using external firmware

[Alexandre Courbot]

On Mon, Apr 28, 2014 at 11:10 AM, Ben Skeggs <skeggsb-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
> On Fri, Apr 25, 2014 at 5:19 PM, Alexandre Courbot <acourbot-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org> wrote:
>> nvc0_graph_ctor() would only let the graphics engine be enabled if its
>> oclass has a proper microcode linked to it. This prevents GR from being
>> enabled at all on chips that rely exclusively on external firmware, even
>> though such a use-case is valid.
>>
>> Relax the conditions enabling the GR engine to also include the case
>> where an external firmware has also been loaded.
> I'm happy to take this patch as-is.  I do wonder if we should do
> something like this though:
>
> if (nouveau_boolopt(device->cfgopt, "NvGrUseFW", oclass->fecs.ucode == NULL))
>
> Which will automatically switch to external firmware if there's no
> internal implementation available.
>
> Thoughts?  This could be a separate patch even, if preferred.

Sure, that should work. Do you mind if I come with a follow-up patch
for this so I don't have to re-sent the current patch series? Since
this is the only comment it received so far.

Thanks,
Alex.

Re: [Nouveau] [PATCH v3 6/9] drm/nouveau/graph: enable when using external firmware

[Ben Skeggs]

On Thu, May 1, 2014 at 2:53 PM, Alexandre Courbot <gnurou-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
> On Mon, Apr 28, 2014 at 11:10 AM, Ben Skeggs <skeggsb-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
>> On Fri, Apr 25, 2014 at 5:19 PM, Alexandre Courbot <acourbot-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org> wrote:
>>> nvc0_graph_ctor() would only let the graphics engine be enabled if its
>>> oclass has a proper microcode linked to it. This prevents GR from being
>>> enabled at all on chips that rely exclusively on external firmware, even
>>> though such a use-case is valid.
>>>
>>> Relax the conditions enabling the GR engine to also include the case
>>> where an external firmware has also been loaded.
>> I'm happy to take this patch as-is.  I do wonder if we should do
>> something like this though:
>>
>> if (nouveau_boolopt(device->cfgopt, "NvGrUseFW", oclass->fecs.ucode == NULL))
>>
>> Which will automatically switch to external firmware if there's no
>> internal implementation available.
>>
>> Thoughts?  This could be a separate patch even, if preferred.
>
> Sure, that should work. Do you mind if I come with a follow-up patch
> for this so I don't have to re-sent the current patch series? Since
> this is the only comment it received so far.
Yeah that's fine.  I suspect I'll merge this tomorrow, assuming no
further objections are raised.

Ben.

>
> Thanks,
> Alex.

[PATCH v3 8/9] drm/nouveau/graph: add GK20A support

[Alexandre Courbot]

Add a GR device for GK20A based on NVE4, with the correct classes
definitions (GK20A's 3D class is 0xa297).

Most of the NVE4 code can be used on GK20A, so make relevant bits of
NVE4 available to other chips as well.

Signed-off-by: Alexandre Courbot <acourbot-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
---
 drivers/gpu/drm/nouveau/Makefile                   |  2 +
 .../gpu/drm/nouveau/core/engine/graph/ctxgk20a.c   | 53 ++++++++++++++++++++++
 .../gpu/drm/nouveau/core/engine/graph/ctxnvc0.h    |  9 ++++
 .../gpu/drm/nouveau/core/engine/graph/ctxnve4.c    | 14 +++---
 drivers/gpu/drm/nouveau/core/engine/graph/gk20a.c  | 47 +++++++++++++++++++
 drivers/gpu/drm/nouveau/core/engine/graph/nvc0.h   |  2 +
 drivers/gpu/drm/nouveau/core/engine/graph/nve4.c   |  4 +-
 .../gpu/drm/nouveau/core/include/engine/graph.h    |  1 +
 8 files changed, 123 insertions(+), 9 deletions(-)
 create mode 100644 drivers/gpu/drm/nouveau/core/engine/graph/ctxgk20a.c
 create mode 100644 drivers/gpu/drm/nouveau/core/engine/graph/gk20a.c

diff --git a/drivers/gpu/drm/nouveau/Makefile b/drivers/gpu/drm/nouveau/Makefile
index e6fe53bab593..1aaa2ef577d9 100644
--- a/drivers/gpu/drm/nouveau/Makefile
+++ b/drivers/gpu/drm/nouveau/Makefile
@@ -259,6 +259,7 @@ nouveau-y += core/engine/graph/ctxnvc8.o
 nouveau-y += core/engine/graph/ctxnvd7.o
 nouveau-y += core/engine/graph/ctxnvd9.o
 nouveau-y += core/engine/graph/ctxnve4.o
+nouveau-y += core/engine/graph/ctxgk20a.o
 nouveau-y += core/engine/graph/ctxnvf0.o
 nouveau-y += core/engine/graph/ctxnv108.o
 nouveau-y += core/engine/graph/ctxgm107.o
@@ -279,6 +280,7 @@ nouveau-y += core/engine/graph/nvc8.o
 nouveau-y += core/engine/graph/nvd7.o
 nouveau-y += core/engine/graph/nvd9.o
 nouveau-y += core/engine/graph/nve4.o
+nouveau-y += core/engine/graph/gk20a.o
 nouveau-y += core/engine/graph/nvf0.o
 nouveau-y += core/engine/graph/nv108.o
 nouveau-y += core/engine/graph/gm107.o
diff --git a/drivers/gpu/drm/nouveau/core/engine/graph/ctxgk20a.c b/drivers/gpu/drm/nouveau/core/engine/graph/ctxgk20a.c
new file mode 100644
index 000000000000..224ee0287ab7
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/core/engine/graph/ctxgk20a.c
@@ -0,0 +1,53 @@
+/*
+ * Copyright (c) 2014, NVIDIA CORPORATION. All rights reserved.
+ *
+ * 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 AUTHORS OR COPYRIGHT HOLDERS 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.
+ */
+
+#include "ctxnvc0.h"
+
+static const struct nvc0_graph_pack
+gk20a_grctx_pack_mthd[] = {
+	{ nve4_grctx_init_a097_0, 0xa297 },
+	{ nvc0_grctx_init_902d_0, 0x902d },
+	{}
+};
+
+struct nouveau_oclass *
+gk20a_grctx_oclass = &(struct nvc0_grctx_oclass) {
+	.base.handle = NV_ENGCTX(GR, 0xea),
+	.base.ofuncs = &(struct nouveau_ofuncs) {
+		.ctor = nvc0_graph_context_ctor,
+		.dtor = nvc0_graph_context_dtor,
+		.init = _nouveau_graph_context_init,
+		.fini = _nouveau_graph_context_fini,
+		.rd32 = _nouveau_graph_context_rd32,
+		.wr32 = _nouveau_graph_context_wr32,
+	},
+	.main  = nve4_grctx_generate_main,
+	.mods  = nve4_grctx_generate_mods,
+	.unkn  = nve4_grctx_generate_unkn,
+	.hub   = nve4_grctx_pack_hub,
+	.gpc   = nve4_grctx_pack_gpc,
+	.zcull = nvc0_grctx_pack_zcull,
+	.tpc   = nve4_grctx_pack_tpc,
+	.ppc   = nve4_grctx_pack_ppc,
+	.icmd  = nve4_grctx_pack_icmd,
+	.mthd  = gk20a_grctx_pack_mthd,
+}.base;
diff --git a/drivers/gpu/drm/nouveau/core/engine/graph/ctxnvc0.h b/drivers/gpu/drm/nouveau/core/engine/graph/ctxnvc0.h
index 9c815d1f99ef..8da8b627b9d0 100644
--- a/drivers/gpu/drm/nouveau/core/engine/graph/ctxnvc0.h
+++ b/drivers/gpu/drm/nouveau/core/engine/graph/ctxnvc0.h
@@ -69,7 +69,9 @@ extern struct nouveau_oclass *nvd7_grctx_oclass;
 extern struct nouveau_oclass *nvd9_grctx_oclass;
 
 extern struct nouveau_oclass *nve4_grctx_oclass;
+extern struct nouveau_oclass *gk20a_grctx_oclass;
 void nve4_grctx_generate_main(struct nvc0_graph_priv *, struct nvc0_grctx *);
+void nve4_grctx_generate_mods(struct nvc0_graph_priv *, struct nvc0_grctx *);
 void nve4_grctx_generate_unkn(struct nvc0_graph_priv *);
 void nve4_grctx_generate_r418bb8(struct nvc0_graph_priv *);
 
@@ -151,6 +153,13 @@ extern const struct nvc0_graph_init nve4_grctx_init_gpm_0[];
 
 extern const struct nvc0_graph_init nve4_grctx_init_pes_0[];
 
+extern const struct nvc0_graph_pack nve4_grctx_pack_hub[];
+extern const struct nvc0_graph_pack nve4_grctx_pack_gpc[];
+extern const struct nvc0_graph_pack nve4_grctx_pack_tpc[];
+extern const struct nvc0_graph_pack nve4_grctx_pack_ppc[];
+extern const struct nvc0_graph_pack nve4_grctx_pack_icmd[];
+extern const struct nvc0_graph_init nve4_grctx_init_a097_0[];
+
 extern const struct nvc0_graph_pack nvf0_grctx_pack_mthd[];
 
 extern const struct nvc0_graph_init nvf0_grctx_init_pri_0[];
diff --git a/drivers/gpu/drm/nouveau/core/engine/graph/ctxnve4.c b/drivers/gpu/drm/nouveau/core/engine/graph/ctxnve4.c
index 49a14b116a5f..c5b249238587 100644
--- a/drivers/gpu/drm/nouveau/core/engine/graph/ctxnve4.c
+++ b/drivers/gpu/drm/nouveau/core/engine/graph/ctxnve4.c
@@ -272,13 +272,13 @@ nve4_grctx_init_icmd_0[] = {
 	{}
 };
 
-static const struct nvc0_graph_pack
+const struct nvc0_graph_pack
 nve4_grctx_pack_icmd[] = {
 	{ nve4_grctx_init_icmd_0 },
 	{}
 };
 
-static const struct nvc0_graph_init
+const struct nvc0_graph_init
 nve4_grctx_init_a097_0[] = {
 	{ 0x000800,   8, 0x40, 0x00000000 },
 	{ 0x000804,   8, 0x40, 0x00000000 },
@@ -697,7 +697,7 @@ nve4_grctx_init_be_0[] = {
 	{}
 };
 
-static const struct nvc0_graph_pack
+const struct nvc0_graph_pack
 nve4_grctx_pack_hub[] = {
 	{ nvc0_grctx_init_main_0 },
 	{ nve4_grctx_init_fe_0 },
@@ -737,7 +737,7 @@ nve4_grctx_init_gpm_0[] = {
 	{}
 };
 
-static const struct nvc0_graph_pack
+const struct nvc0_graph_pack
 nve4_grctx_pack_gpc[] = {
 	{ nvc0_grctx_init_gpc_unk_0 },
 	{ nvd9_grctx_init_prop_0 },
@@ -802,7 +802,7 @@ nve4_grctx_init_sm_0[] = {
 	{}
 };
 
-static const struct nvc0_graph_pack
+const struct nvc0_graph_pack
 nve4_grctx_pack_tpc[] = {
 	{ nvd7_grctx_init_pe_0 },
 	{ nve4_grctx_init_tex_0 },
@@ -826,7 +826,7 @@ nve4_grctx_init_cbm_0[] = {
 	{}
 };
 
-static const struct nvc0_graph_pack
+const struct nvc0_graph_pack
 nve4_grctx_pack_ppc[] = {
 	{ nve4_grctx_init_pes_0 },
 	{ nve4_grctx_init_cbm_0 },
@@ -838,7 +838,7 @@ nve4_grctx_pack_ppc[] = {
  * PGRAPH context implementation
  ******************************************************************************/
 
-static void
+void
 nve4_grctx_generate_mods(struct nvc0_graph_priv *priv, struct nvc0_grctx *info)
 {
 	u32 magic[GPC_MAX][2];
diff --git a/drivers/gpu/drm/nouveau/core/engine/graph/gk20a.c b/drivers/gpu/drm/nouveau/core/engine/graph/gk20a.c
new file mode 100644
index 000000000000..83048a56430d
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/core/engine/graph/gk20a.c
@@ -0,0 +1,47 @@
+/*
+ * Copyright (c) 2014, NVIDIA CORPORATION. All rights reserved.
+ *
+ * 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 AUTHORS OR COPYRIGHT HOLDERS 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.
+ */
+
+#include "nvc0.h"
+#include "ctxnvc0.h"
+
+static struct nouveau_oclass
+gk20a_graph_sclass[] = {
+	{ 0x902d, &nouveau_object_ofuncs },
+	{ 0xa040, &nouveau_object_ofuncs },
+	{ 0xa297, &nouveau_object_ofuncs },
+	{ 0xa0c0, &nouveau_object_ofuncs },
+	{}
+};
+
+struct nouveau_oclass *
+gk20a_graph_oclass = &(struct nvc0_graph_oclass) {
+	.base.handle = NV_ENGINE(GR, 0xea),
+	.base.ofuncs = &(struct nouveau_ofuncs) {
+		.ctor = nvc0_graph_ctor,
+		.dtor = nvc0_graph_dtor,
+		.init = nve4_graph_init,
+		.fini = nve4_graph_fini,
+	},
+	.cclass = &gk20a_grctx_oclass,
+	.sclass = gk20a_graph_sclass,
+	.mmio = nve4_graph_pack_mmio,
+}.base;
diff --git a/drivers/gpu/drm/nouveau/core/engine/graph/nvc0.h b/drivers/gpu/drm/nouveau/core/engine/graph/nvc0.h
index 90d44616c876..75203a99d902 100644
--- a/drivers/gpu/drm/nouveau/core/engine/graph/nvc0.h
+++ b/drivers/gpu/drm/nouveau/core/engine/graph/nvc0.h
@@ -116,6 +116,7 @@ int  nvc0_graph_ctor(struct nouveau_object *, struct nouveau_object *,
 		     struct nouveau_object **);
 void nvc0_graph_dtor(struct nouveau_object *);
 int  nvc0_graph_init(struct nouveau_object *);
+int  nve4_graph_fini(struct nouveau_object *, bool);
 int  nve4_graph_init(struct nouveau_object *);
 
 extern struct nouveau_oclass nvc0_graph_sclass[];
@@ -217,6 +218,7 @@ extern const struct nvc0_graph_init nve4_graph_init_main_0[];
 extern const struct nvc0_graph_init nve4_graph_init_tpccs_0[];
 extern const struct nvc0_graph_init nve4_graph_init_pe_0[];
 extern const struct nvc0_graph_init nve4_graph_init_be_0[];
+extern const struct nvc0_graph_pack nve4_graph_pack_mmio[];
 
 extern const struct nvc0_graph_init nvf0_graph_init_fe_0[];
 extern const struct nvc0_graph_init nvf0_graph_init_sked_0[];
diff --git a/drivers/gpu/drm/nouveau/core/engine/graph/nve4.c b/drivers/gpu/drm/nouveau/core/engine/graph/nve4.c
index f7c011217175..51e0c075ad34 100644
--- a/drivers/gpu/drm/nouveau/core/engine/graph/nve4.c
+++ b/drivers/gpu/drm/nouveau/core/engine/graph/nve4.c
@@ -151,7 +151,7 @@ nve4_graph_init_be_0[] = {
 	{}
 };
 
-static const struct nvc0_graph_pack
+const struct nvc0_graph_pack
 nve4_graph_pack_mmio[] = {
 	{ nve4_graph_init_main_0 },
 	{ nvc0_graph_init_fe_0 },
@@ -189,7 +189,7 @@ nve4_graph_pack_mmio[] = {
  * PGRAPH engine/subdev functions
  ******************************************************************************/
 
-static int
+int
 nve4_graph_fini(struct nouveau_object *object, bool suspend)
 {
 	struct nvc0_graph_priv *priv = (void *)object;
diff --git a/drivers/gpu/drm/nouveau/core/include/engine/graph.h b/drivers/gpu/drm/nouveau/core/include/engine/graph.h
index 871edfdf3d5b..8c1d4772da0c 100644
--- a/drivers/gpu/drm/nouveau/core/include/engine/graph.h
+++ b/drivers/gpu/drm/nouveau/core/include/engine/graph.h
@@ -68,6 +68,7 @@ extern struct nouveau_oclass *nvc8_graph_oclass;
 extern struct nouveau_oclass *nvd7_graph_oclass;
 extern struct nouveau_oclass *nvd9_graph_oclass;
 extern struct nouveau_oclass *nve4_graph_oclass;
+extern struct nouveau_oclass *gk20a_graph_oclass;
 extern struct nouveau_oclass *nvf0_graph_oclass;
 extern struct nouveau_oclass *nv108_graph_oclass;
 extern struct nouveau_oclass *gm107_graph_oclass;
-- 
1.9.2

Re: [PATCH v3 0/9] drm/nouveau: support for GK20A, cont'd

[Ben Skeggs]

On Fri, Apr 25, 2014 at 5:19 PM, Alexandre Courbot <acourbot-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org> wrote:
> Changes since v2:
> - Enabled software class
> - Removed unneeded changes to nouveau_accel_init()
> - Replaced use of architecture-private pfn_to_dma() and dma_to_pfn() with
>   the portable page_to_phys()/phys_to_page()
page_to_phys() looks well defined and used everywhere, phys_to_page()
not so much (including on amd64) :(

> - Fixed incorrect comment/commit log talking about bytes instead of words
>
> Hope this looks good! Once this gets merged the next set will be to use this
> driver on Jetson and Venice2 boards.
>
> Cheers,
>
> Alexandre Courbot (9):
>   drm/nouveau/bar: only ioremap BAR3 if it exists
>   drm/nouveau/bar/nvc0: support chips without BAR3
>   drm/nouveau/ibus: add GK20A support
>   drm/nouveau/fb: add GK20A support
>   drm/nouveau/fifo: add GK20A support
>   drm/nouveau/graph: enable when using external firmware
>   drm/nouveau/graph: pad firmware code at load time
>   drm/nouveau/graph: add GK20A support
>   drm/nouveau: support for probing GK20A
>
>  drivers/gpu/drm/nouveau/Makefile                   |   6 +
>  drivers/gpu/drm/nouveau/core/engine/device/nve0.c  |  17 +++
>  drivers/gpu/drm/nouveau/core/engine/fifo/gk20a.c   |  35 +++++
>  drivers/gpu/drm/nouveau/core/engine/fifo/nve0.h    |   1 +
>  .../gpu/drm/nouveau/core/engine/graph/ctxgk20a.c   |  53 +++++++
>  .../gpu/drm/nouveau/core/engine/graph/ctxnvc0.h    |   9 ++
>  .../gpu/drm/nouveau/core/engine/graph/ctxnve4.c    |  14 +-
>  drivers/gpu/drm/nouveau/core/engine/graph/gk20a.c  |  47 ++++++
>  drivers/gpu/drm/nouveau/core/engine/graph/nvc0.c   |  13 +-
>  drivers/gpu/drm/nouveau/core/engine/graph/nvc0.h   |   2 +
>  drivers/gpu/drm/nouveau/core/engine/graph/nve4.c   |   4 +-
>  drivers/gpu/drm/nouveau/core/include/engine/fifo.h |   1 +
>  .../gpu/drm/nouveau/core/include/engine/graph.h    |   1 +
>  drivers/gpu/drm/nouveau/core/include/subdev/fb.h   |   1 +
>  drivers/gpu/drm/nouveau/core/include/subdev/ibus.h |   1 +
>  drivers/gpu/drm/nouveau/core/subdev/bar/base.c     |   6 +-
>  drivers/gpu/drm/nouveau/core/subdev/bar/nvc0.c     | 114 +++++++-------
>  drivers/gpu/drm/nouveau/core/subdev/fb/gk20a.c     |  56 +++++++
>  drivers/gpu/drm/nouveau/core/subdev/fb/priv.h      |   1 +
>  drivers/gpu/drm/nouveau/core/subdev/fb/ramgk20a.c  | 167 +++++++++++++++++++++
>  drivers/gpu/drm/nouveau/core/subdev/ibus/gk20a.c   | 103 +++++++++++++
>  21 files changed, 583 insertions(+), 69 deletions(-)
>  create mode 100644 drivers/gpu/drm/nouveau/core/engine/fifo/gk20a.c
>  create mode 100644 drivers/gpu/drm/nouveau/core/engine/graph/ctxgk20a.c
>  create mode 100644 drivers/gpu/drm/nouveau/core/engine/graph/gk20a.c
>  create mode 100644 drivers/gpu/drm/nouveau/core/subdev/fb/gk20a.c
>  create mode 100644 drivers/gpu/drm/nouveau/core/subdev/fb/ramgk20a.c
>  create mode 100644 drivers/gpu/drm/nouveau/core/subdev/ibus/gk20a.c
>
> --
> 1.9.2
>
> _______________________________________________
> dri-devel mailing list
> dri-devel-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org
> http://lists.freedesktop.org/mailman/listinfo/dri-devel

Re: [PATCH v3 0/9] drm/nouveau: support for GK20A, cont'd

[Alexandre Courbot]

On 05/01/2014 04:11 PM, Ben Skeggs wrote:
> On Fri, Apr 25, 2014 at 5:19 PM, Alexandre Courbot <acourbot-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org> wrote:
>> Changes since v2:
>> - Enabled software class
>> - Removed unneeded changes to nouveau_accel_init()
>> - Replaced use of architecture-private pfn_to_dma() and dma_to_pfn() with
>>    the portable page_to_phys()/phys_to_page()
> page_to_phys() looks well defined and used everywhere, phys_to_page()
> not so much (including on amd64) :(

Argh, dammit. Now I *really* wonder what one is supposed to use in such 
cases...

Let me come with a v4 then. I will address the other issue with external 
firmware at the same time.

Sorry for the inconvenience.

>
>> - Fixed incorrect comment/commit log talking about bytes instead of words
>>
>> Hope this looks good! Once this gets merged the next set will be to use this
>> driver on Jetson and Venice2 boards.
>>
>> Cheers,
>>
>> Alexandre Courbot (9):
>>    drm/nouveau/bar: only ioremap BAR3 if it exists
>>    drm/nouveau/bar/nvc0: support chips without BAR3
>>    drm/nouveau/ibus: add GK20A support
>>    drm/nouveau/fb: add GK20A support
>>    drm/nouveau/fifo: add GK20A support
>>    drm/nouveau/graph: enable when using external firmware
>>    drm/nouveau/graph: pad firmware code at load time
>>    drm/nouveau/graph: add GK20A support
>>    drm/nouveau: support for probing GK20A
>>
>>   drivers/gpu/drm/nouveau/Makefile                   |   6 +
>>   drivers/gpu/drm/nouveau/core/engine/device/nve0.c  |  17 +++
>>   drivers/gpu/drm/nouveau/core/engine/fifo/gk20a.c   |  35 +++++
>>   drivers/gpu/drm/nouveau/core/engine/fifo/nve0.h    |   1 +
>>   .../gpu/drm/nouveau/core/engine/graph/ctxgk20a.c   |  53 +++++++
>>   .../gpu/drm/nouveau/core/engine/graph/ctxnvc0.h    |   9 ++
>>   .../gpu/drm/nouveau/core/engine/graph/ctxnve4.c    |  14 +-
>>   drivers/gpu/drm/nouveau/core/engine/graph/gk20a.c  |  47 ++++++
>>   drivers/gpu/drm/nouveau/core/engine/graph/nvc0.c   |  13 +-
>>   drivers/gpu/drm/nouveau/core/engine/graph/nvc0.h   |   2 +
>>   drivers/gpu/drm/nouveau/core/engine/graph/nve4.c   |   4 +-
>>   drivers/gpu/drm/nouveau/core/include/engine/fifo.h |   1 +
>>   .../gpu/drm/nouveau/core/include/engine/graph.h    |   1 +
>>   drivers/gpu/drm/nouveau/core/include/subdev/fb.h   |   1 +
>>   drivers/gpu/drm/nouveau/core/include/subdev/ibus.h |   1 +
>>   drivers/gpu/drm/nouveau/core/subdev/bar/base.c     |   6 +-
>>   drivers/gpu/drm/nouveau/core/subdev/bar/nvc0.c     | 114 +++++++-------
>>   drivers/gpu/drm/nouveau/core/subdev/fb/gk20a.c     |  56 +++++++
>>   drivers/gpu/drm/nouveau/core/subdev/fb/priv.h      |   1 +
>>   drivers/gpu/drm/nouveau/core/subdev/fb/ramgk20a.c  | 167 +++++++++++++++++++++
>>   drivers/gpu/drm/nouveau/core/subdev/ibus/gk20a.c   | 103 +++++++++++++
>>   21 files changed, 583 insertions(+), 69 deletions(-)
>>   create mode 100644 drivers/gpu/drm/nouveau/core/engine/fifo/gk20a.c
>>   create mode 100644 drivers/gpu/drm/nouveau/core/engine/graph/ctxgk20a.c
>>   create mode 100644 drivers/gpu/drm/nouveau/core/engine/graph/gk20a.c
>>   create mode 100644 drivers/gpu/drm/nouveau/core/subdev/fb/gk20a.c
>>   create mode 100644 drivers/gpu/drm/nouveau/core/subdev/fb/ramgk20a.c
>>   create mode 100644 drivers/gpu/drm/nouveau/core/subdev/ibus/gk20a.c
>>
>> --
>> 1.9.2
>>
>> _______________________________________________
>> dri-devel mailing list
>> dri-devel-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org
>> http://lists.freedesktop.org/mailman/listinfo/dri-devel

[PATCH v3 7/9] drm/nouveau/graph: pad firmware code at load time

[Alexandre Courbot]

Pad the microcode to a multiple of 0x40 words, otherwise firmware will
fail to run from non-prepadded firmware files.

Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Reviewed-by: Thierry Reding <treding@nvidia.com>
---
 drivers/gpu/drm/nouveau/core/engine/graph/nvc0.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/gpu/drm/nouveau/core/engine/graph/nvc0.c b/drivers/gpu/drm/nouveau/core/engine/graph/nvc0.c
index e5b75f189988..ba324016120a 100644
--- a/drivers/gpu/drm/nouveau/core/engine/graph/nvc0.c
+++ b/drivers/gpu/drm/nouveau/core/engine/graph/nvc0.c
@@ -894,6 +894,10 @@ nvc0_graph_init_fw(struct nvc0_graph_priv *priv, u32 fuc_base,
 			nv_wr32(priv, fuc_base + 0x0188, i >> 6);
 		nv_wr32(priv, fuc_base + 0x0184, code->data[i]);
 	}
+
+	/* code must be padded to 0x40 words */
+	for (; i & 0x3f; i++)
+		nv_wr32(priv, fuc_base + 0x0184, 0);
 }
 
 static void
-- 
1.9.2

[PATCH v3 9/9] drm/nouveau: support for probing GK20A

[Alexandre Courbot]

Set the correct subdev/engine classes when GK20A (0xea) is probed.

Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
---
 drivers/gpu/drm/nouveau/core/engine/device/nve0.c | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

diff --git a/drivers/gpu/drm/nouveau/core/engine/device/nve0.c b/drivers/gpu/drm/nouveau/core/engine/device/nve0.c
index 9784cbf8a9d2..964c183322a2 100644
--- a/drivers/gpu/drm/nouveau/core/engine/device/nve0.c
+++ b/drivers/gpu/drm/nouveau/core/engine/device/nve0.c
@@ -156,6 +156,23 @@ nve0_identify(struct nouveau_device *device)
 		device->oclass[NVDEV_ENGINE_PPP    ] = &nvc0_ppp_oclass;
 		device->oclass[NVDEV_ENGINE_PERFMON] = &nve0_perfmon_oclass;
 		break;
+	case 0xea:
+		device->cname = "GK20A";
+		device->oclass[NVDEV_SUBDEV_MC     ] =  nvc3_mc_oclass;
+		device->oclass[NVDEV_SUBDEV_BUS    ] =  nvc0_bus_oclass;
+		device->oclass[NVDEV_SUBDEV_TIMER  ] = &gk20a_timer_oclass;
+		device->oclass[NVDEV_SUBDEV_FB     ] =  gk20a_fb_oclass;
+		device->oclass[NVDEV_SUBDEV_IBUS   ] = &gk20a_ibus_oclass;
+		device->oclass[NVDEV_SUBDEV_INSTMEM] = nv50_instmem_oclass;
+		device->oclass[NVDEV_SUBDEV_VM     ] = &nvc0_vmmgr_oclass;
+		device->oclass[NVDEV_SUBDEV_BAR    ] = &nvc0_bar_oclass;
+		device->oclass[NVDEV_ENGINE_DMAOBJ ] = &nvd0_dmaeng_oclass;
+		device->oclass[NVDEV_ENGINE_FIFO   ] =  gk20a_fifo_oclass;
+		device->oclass[NVDEV_ENGINE_SW     ] =  nvc0_software_oclass;
+		device->oclass[NVDEV_ENGINE_GR     ] =  gk20a_graph_oclass;
+		device->oclass[NVDEV_ENGINE_COPY2  ] = &nve0_copy2_oclass;
+		device->oclass[NVDEV_ENGINE_PERFMON] = &nve0_perfmon_oclass;
+		break;
 	case 0xf0:
 		device->cname = "GK110";
 		device->oclass[NVDEV_SUBDEV_VBIOS  ] = &nouveau_bios_oclass;
-- 
1.9.2