drm/nouveau: restructure source tree, split core from drm implementation
Future work will be headed in the way of separating the policy supplied by
the nouveau drm module from the mechanisms provided by the driver core.
There will be a couple of major classes (subdev, engine) of driver modules
that have clearly defined tasks, and the further directory structure change
is to reflect this.
No code changes here whatsoever, aside from fixing up a couple of include
file pathnames.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
diff --git a/drivers/gpu/drm/nouveau/core/subdev/vm/nvc0.c b/drivers/gpu/drm/nouveau/core/subdev/vm/nvc0.c
new file mode 100644
index 0000000..734877a
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/core/subdev/vm/nvc0.c
@@ -0,0 +1,136 @@
+/*
+ * Copyright 2010 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 <subdev/vm.h>
+
+void
+nvc0_vm_map_pgt(struct nouveau_gpuobj *pgd, u32 index,
+ struct nouveau_gpuobj *pgt[2])
+{
+ u32 pde[2] = { 0, 0 };
+
+ if (pgt[0])
+ pde[1] = 0x00000001 | (pgt[0]->vinst >> 8);
+ if (pgt[1])
+ pde[0] = 0x00000001 | (pgt[1]->vinst >> 8);
+
+ nv_wo32(pgd, (index * 8) + 0, pde[0]);
+ nv_wo32(pgd, (index * 8) + 4, pde[1]);
+}
+
+static inline u64
+nvc0_vm_addr(struct nouveau_vma *vma, u64 phys, u32 memtype, u32 target)
+{
+ phys >>= 8;
+
+ phys |= 0x00000001; /* present */
+ if (vma->access & NV_MEM_ACCESS_SYS)
+ phys |= 0x00000002;
+
+ phys |= ((u64)target << 32);
+ phys |= ((u64)memtype << 36);
+
+ return phys;
+}
+
+void
+nvc0_vm_map(struct nouveau_vma *vma, struct nouveau_gpuobj *pgt,
+ struct nouveau_mem *mem, u32 pte, u32 cnt, u64 phys, u64 delta)
+{
+ u32 next = 1 << (vma->node->type - 8);
+
+ phys = nvc0_vm_addr(vma, phys, mem->memtype, 0);
+ pte <<= 3;
+ while (cnt--) {
+ nv_wo32(pgt, pte + 0, lower_32_bits(phys));
+ nv_wo32(pgt, pte + 4, upper_32_bits(phys));
+ phys += next;
+ pte += 8;
+ }
+}
+
+void
+nvc0_vm_map_sg(struct nouveau_vma *vma, struct nouveau_gpuobj *pgt,
+ struct nouveau_mem *mem, u32 pte, u32 cnt, dma_addr_t *list)
+{
+ u32 target = (vma->access & NV_MEM_ACCESS_NOSNOOP) ? 7 : 5;
+
+ pte <<= 3;
+ while (cnt--) {
+ u64 phys = nvc0_vm_addr(vma, *list++, mem->memtype, target);
+ nv_wo32(pgt, pte + 0, lower_32_bits(phys));
+ nv_wo32(pgt, pte + 4, upper_32_bits(phys));
+ pte += 8;
+ }
+}
+
+void
+nvc0_vm_unmap(struct nouveau_gpuobj *pgt, u32 pte, u32 cnt)
+{
+ pte <<= 3;
+ while (cnt--) {
+ nv_wo32(pgt, pte + 0, 0x00000000);
+ nv_wo32(pgt, pte + 4, 0x00000000);
+ pte += 8;
+ }
+}
+
+void
+nvc0_vm_flush(struct nouveau_vm *vm)
+{
+ struct drm_nouveau_private *dev_priv = vm->dev->dev_private;
+ struct nouveau_instmem_engine *pinstmem = &dev_priv->engine.instmem;
+ struct drm_device *dev = vm->dev;
+ struct nouveau_vm_pgd *vpgd;
+ unsigned long flags;
+ u32 engine;
+
+ engine = 1;
+ if (vm == dev_priv->bar1_vm || vm == dev_priv->bar3_vm)
+ engine |= 4;
+
+ pinstmem->flush(vm->dev);
+
+ spin_lock_irqsave(&dev_priv->vm_lock, flags);
+ list_for_each_entry(vpgd, &vm->pgd_list, head) {
+ /* looks like maybe a "free flush slots" counter, the
+ * faster you write to 0x100cbc to more it decreases
+ */
+ if (!nv_wait_ne(dev, 0x100c80, 0x00ff0000, 0x00000000)) {
+ NV_ERROR(dev, "vm timeout 0: 0x%08x %d\n",
+ nv_rd32(dev, 0x100c80), engine);
+ }
+ nv_wr32(dev, 0x100cb8, vpgd->obj->vinst >> 8);
+ nv_wr32(dev, 0x100cbc, 0x80000000 | engine);
+ /* wait for flush to be queued? */
+ if (!nv_wait(dev, 0x100c80, 0x00008000, 0x00008000)) {
+ NV_ERROR(dev, "vm timeout 1: 0x%08x %d\n",
+ nv_rd32(dev, 0x100c80), engine);
+ }
+ }
+ spin_unlock_irqrestore(&dev_priv->vm_lock, flags);
+}