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/engine/fifo/nvc0.c b/drivers/gpu/drm/nouveau/core/engine/fifo/nvc0.c
new file mode 100644
index 0000000..398f32d
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/core/engine/fifo/nvc0.c
@@ -0,0 +1,477 @@
+/*
+ * 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 <core/mm.h>
+#include <engine/fifo.h>
+
+static void nvc0_fifo_isr(struct drm_device *);
+
+struct nvc0_fifo_priv {
+ struct nouveau_fifo_priv base;
+ struct nouveau_gpuobj *playlist[2];
+ int cur_playlist;
+ struct nouveau_vma user_vma;
+ int spoon_nr;
+};
+
+struct nvc0_fifo_chan {
+ struct nouveau_fifo_chan base;
+ struct nouveau_gpuobj *user;
+};
+
+static void
+nvc0_fifo_playlist_update(struct drm_device *dev)
+{
+ struct drm_nouveau_private *dev_priv = dev->dev_private;
+ struct nouveau_instmem_engine *pinstmem = &dev_priv->engine.instmem;
+ struct nvc0_fifo_priv *priv = nv_engine(dev, NVOBJ_ENGINE_FIFO);
+ struct nouveau_gpuobj *cur;
+ int i, p;
+
+ cur = priv->playlist[priv->cur_playlist];
+ priv->cur_playlist = !priv->cur_playlist;
+
+ for (i = 0, p = 0; i < 128; i++) {
+ if (!(nv_rd32(dev, 0x3004 + (i * 8)) & 1))
+ continue;
+ nv_wo32(cur, p + 0, i);
+ nv_wo32(cur, p + 4, 0x00000004);
+ p += 8;
+ }
+ pinstmem->flush(dev);
+
+ nv_wr32(dev, 0x002270, cur->vinst >> 12);
+ nv_wr32(dev, 0x002274, 0x01f00000 | (p >> 3));
+ if (!nv_wait(dev, 0x00227c, 0x00100000, 0x00000000))
+ NV_ERROR(dev, "PFIFO - playlist update failed\n");
+}
+
+static int
+nvc0_fifo_context_new(struct nouveau_channel *chan, int engine)
+{
+ struct drm_device *dev = chan->dev;
+ struct drm_nouveau_private *dev_priv = dev->dev_private;
+ struct nouveau_instmem_engine *pinstmem = &dev_priv->engine.instmem;
+ struct nvc0_fifo_priv *priv = nv_engine(dev, engine);
+ struct nvc0_fifo_chan *fctx;
+ u64 ib_virt = chan->pushbuf_base + chan->dma.ib_base * 4;
+ int ret, i;
+
+ fctx = chan->engctx[engine] = kzalloc(sizeof(*fctx), GFP_KERNEL);
+ if (!fctx)
+ return -ENOMEM;
+
+ chan->user = ioremap_wc(pci_resource_start(dev->pdev, 1) +
+ priv->user_vma.offset + (chan->id * 0x1000),
+ PAGE_SIZE);
+ if (!chan->user) {
+ ret = -ENOMEM;
+ goto error;
+ }
+
+ /* allocate vram for control regs, map into polling area */
+ ret = nouveau_gpuobj_new(dev, NULL, 0x1000, 0x1000,
+ NVOBJ_FLAG_ZERO_ALLOC, &fctx->user);
+ if (ret)
+ goto error;
+
+ nouveau_vm_map_at(&priv->user_vma, chan->id * 0x1000,
+ *(struct nouveau_mem **)fctx->user->node);
+
+ for (i = 0; i < 0x100; i += 4)
+ nv_wo32(chan->ramin, i, 0x00000000);
+ nv_wo32(chan->ramin, 0x08, lower_32_bits(fctx->user->vinst));
+ nv_wo32(chan->ramin, 0x0c, upper_32_bits(fctx->user->vinst));
+ nv_wo32(chan->ramin, 0x10, 0x0000face);
+ nv_wo32(chan->ramin, 0x30, 0xfffff902);
+ nv_wo32(chan->ramin, 0x48, lower_32_bits(ib_virt));
+ nv_wo32(chan->ramin, 0x4c, drm_order(chan->dma.ib_max + 1) << 16 |
+ upper_32_bits(ib_virt));
+ nv_wo32(chan->ramin, 0x54, 0x00000002);
+ nv_wo32(chan->ramin, 0x84, 0x20400000);
+ nv_wo32(chan->ramin, 0x94, 0x30000001);
+ nv_wo32(chan->ramin, 0x9c, 0x00000100);
+ nv_wo32(chan->ramin, 0xa4, 0x1f1f1f1f);
+ nv_wo32(chan->ramin, 0xa8, 0x1f1f1f1f);
+ nv_wo32(chan->ramin, 0xac, 0x0000001f);
+ nv_wo32(chan->ramin, 0xb8, 0xf8000000);
+ nv_wo32(chan->ramin, 0xf8, 0x10003080); /* 0x002310 */
+ nv_wo32(chan->ramin, 0xfc, 0x10000010); /* 0x002350 */
+ pinstmem->flush(dev);
+
+ nv_wr32(dev, 0x003000 + (chan->id * 8), 0xc0000000 |
+ (chan->ramin->vinst >> 12));
+ nv_wr32(dev, 0x003004 + (chan->id * 8), 0x001f0001);
+ nvc0_fifo_playlist_update(dev);
+
+error:
+ if (ret)
+ priv->base.base.context_del(chan, engine);
+ return ret;
+}
+
+static void
+nvc0_fifo_context_del(struct nouveau_channel *chan, int engine)
+{
+ struct nvc0_fifo_chan *fctx = chan->engctx[engine];
+ struct drm_device *dev = chan->dev;
+
+ nv_mask(dev, 0x003004 + (chan->id * 8), 0x00000001, 0x00000000);
+ nv_wr32(dev, 0x002634, chan->id);
+ if (!nv_wait(dev, 0x0002634, 0xffffffff, chan->id))
+ NV_WARN(dev, "0x2634 != chid: 0x%08x\n", nv_rd32(dev, 0x2634));
+ nvc0_fifo_playlist_update(dev);
+ nv_wr32(dev, 0x003000 + (chan->id * 8), 0x00000000);
+
+ nouveau_gpuobj_ref(NULL, &fctx->user);
+ if (chan->user) {
+ iounmap(chan->user);
+ chan->user = NULL;
+ }
+
+ chan->engctx[engine] = NULL;
+ kfree(fctx);
+}
+
+static int
+nvc0_fifo_init(struct drm_device *dev, int engine)
+{
+ struct drm_nouveau_private *dev_priv = dev->dev_private;
+ struct nvc0_fifo_priv *priv = nv_engine(dev, engine);
+ struct nouveau_channel *chan;
+ int i;
+
+ /* reset PFIFO, enable all available PSUBFIFO areas */
+ nv_mask(dev, 0x000200, 0x00000100, 0x00000000);
+ nv_mask(dev, 0x000200, 0x00000100, 0x00000100);
+ nv_wr32(dev, 0x000204, 0xffffffff);
+ nv_wr32(dev, 0x002204, 0xffffffff);
+
+ priv->spoon_nr = hweight32(nv_rd32(dev, 0x002204));
+ NV_DEBUG(dev, "PFIFO: %d subfifo(s)\n", priv->spoon_nr);
+
+ /* assign engines to subfifos */
+ if (priv->spoon_nr >= 3) {
+ nv_wr32(dev, 0x002208, ~(1 << 0)); /* PGRAPH */
+ nv_wr32(dev, 0x00220c, ~(1 << 1)); /* PVP */
+ nv_wr32(dev, 0x002210, ~(1 << 1)); /* PPP */
+ nv_wr32(dev, 0x002214, ~(1 << 1)); /* PBSP */
+ nv_wr32(dev, 0x002218, ~(1 << 2)); /* PCE0 */
+ nv_wr32(dev, 0x00221c, ~(1 << 1)); /* PCE1 */
+ }
+
+ /* PSUBFIFO[n] */
+ for (i = 0; i < priv->spoon_nr; i++) {
+ nv_mask(dev, 0x04013c + (i * 0x2000), 0x10000100, 0x00000000);
+ nv_wr32(dev, 0x040108 + (i * 0x2000), 0xffffffff); /* INTR */
+ nv_wr32(dev, 0x04010c + (i * 0x2000), 0xfffffeff); /* INTR_EN */
+ }
+
+ nv_mask(dev, 0x002200, 0x00000001, 0x00000001);
+ nv_wr32(dev, 0x002254, 0x10000000 | priv->user_vma.offset >> 12);
+
+ nv_wr32(dev, 0x002a00, 0xffffffff); /* clears PFIFO.INTR bit 30 */
+ nv_wr32(dev, 0x002100, 0xffffffff);
+ nv_wr32(dev, 0x002140, 0xbfffffff);
+
+ /* restore PFIFO context table */
+ for (i = 0; i < 128; i++) {
+ chan = dev_priv->channels.ptr[i];
+ if (!chan || !chan->engctx[engine])
+ continue;
+
+ nv_wr32(dev, 0x003000 + (i * 8), 0xc0000000 |
+ (chan->ramin->vinst >> 12));
+ nv_wr32(dev, 0x003004 + (i * 8), 0x001f0001);
+ }
+ nvc0_fifo_playlist_update(dev);
+
+ return 0;
+}
+
+static int
+nvc0_fifo_fini(struct drm_device *dev, int engine, bool suspend)
+{
+ int i;
+
+ for (i = 0; i < 128; i++) {
+ if (!(nv_rd32(dev, 0x003004 + (i * 8)) & 1))
+ continue;
+
+ nv_mask(dev, 0x003004 + (i * 8), 0x00000001, 0x00000000);
+ nv_wr32(dev, 0x002634, i);
+ if (!nv_wait(dev, 0x002634, 0xffffffff, i)) {
+ NV_INFO(dev, "PFIFO: kick ch %d failed: 0x%08x\n",
+ i, nv_rd32(dev, 0x002634));
+ return -EBUSY;
+ }
+ }
+
+ nv_wr32(dev, 0x002140, 0x00000000);
+ return 0;
+}
+
+
+struct nouveau_enum nvc0_fifo_fault_unit[] = {
+ { 0x00, "PGRAPH" },
+ { 0x03, "PEEPHOLE" },
+ { 0x04, "BAR1" },
+ { 0x05, "BAR3" },
+ { 0x07, "PFIFO" },
+ { 0x10, "PBSP" },
+ { 0x11, "PPPP" },
+ { 0x13, "PCOUNTER" },
+ { 0x14, "PVP" },
+ { 0x15, "PCOPY0" },
+ { 0x16, "PCOPY1" },
+ { 0x17, "PDAEMON" },
+ {}
+};
+
+struct nouveau_enum nvc0_fifo_fault_reason[] = {
+ { 0x00, "PT_NOT_PRESENT" },
+ { 0x01, "PT_TOO_SHORT" },
+ { 0x02, "PAGE_NOT_PRESENT" },
+ { 0x03, "VM_LIMIT_EXCEEDED" },
+ { 0x04, "NO_CHANNEL" },
+ { 0x05, "PAGE_SYSTEM_ONLY" },
+ { 0x06, "PAGE_READ_ONLY" },
+ { 0x0a, "COMPRESSED_SYSRAM" },
+ { 0x0c, "INVALID_STORAGE_TYPE" },
+ {}
+};
+
+struct nouveau_enum nvc0_fifo_fault_hubclient[] = {
+ { 0x01, "PCOPY0" },
+ { 0x02, "PCOPY1" },
+ { 0x04, "DISPATCH" },
+ { 0x05, "CTXCTL" },
+ { 0x06, "PFIFO" },
+ { 0x07, "BAR_READ" },
+ { 0x08, "BAR_WRITE" },
+ { 0x0b, "PVP" },
+ { 0x0c, "PPPP" },
+ { 0x0d, "PBSP" },
+ { 0x11, "PCOUNTER" },
+ { 0x12, "PDAEMON" },
+ { 0x14, "CCACHE" },
+ { 0x15, "CCACHE_POST" },
+ {}
+};
+
+struct nouveau_enum nvc0_fifo_fault_gpcclient[] = {
+ { 0x01, "TEX" },
+ { 0x0c, "ESETUP" },
+ { 0x0e, "CTXCTL" },
+ { 0x0f, "PROP" },
+ {}
+};
+
+struct nouveau_bitfield nvc0_fifo_subfifo_intr[] = {
+/* { 0x00008000, "" } seen with null ib push */
+ { 0x00200000, "ILLEGAL_MTHD" },
+ { 0x00800000, "EMPTY_SUBC" },
+ {}
+};
+
+static void
+nvc0_fifo_isr_vm_fault(struct drm_device *dev, int unit)
+{
+ u32 inst = nv_rd32(dev, 0x2800 + (unit * 0x10));
+ u32 valo = nv_rd32(dev, 0x2804 + (unit * 0x10));
+ u32 vahi = nv_rd32(dev, 0x2808 + (unit * 0x10));
+ u32 stat = nv_rd32(dev, 0x280c + (unit * 0x10));
+ u32 client = (stat & 0x00001f00) >> 8;
+
+ NV_INFO(dev, "PFIFO: %s fault at 0x%010llx [",
+ (stat & 0x00000080) ? "write" : "read", (u64)vahi << 32 | valo);
+ nouveau_enum_print(nvc0_fifo_fault_reason, stat & 0x0000000f);
+ printk("] from ");
+ nouveau_enum_print(nvc0_fifo_fault_unit, unit);
+ if (stat & 0x00000040) {
+ printk("/");
+ nouveau_enum_print(nvc0_fifo_fault_hubclient, client);
+ } else {
+ printk("/GPC%d/", (stat & 0x1f000000) >> 24);
+ nouveau_enum_print(nvc0_fifo_fault_gpcclient, client);
+ }
+ printk(" on channel 0x%010llx\n", (u64)inst << 12);
+}
+
+static int
+nvc0_fifo_page_flip(struct drm_device *dev, u32 chid)
+{
+ struct nvc0_fifo_priv *priv = nv_engine(dev, NVOBJ_ENGINE_FIFO);
+ struct drm_nouveau_private *dev_priv = dev->dev_private;
+ struct nouveau_channel *chan = NULL;
+ unsigned long flags;
+ int ret = -EINVAL;
+
+ spin_lock_irqsave(&dev_priv->channels.lock, flags);
+ if (likely(chid >= 0 && chid < priv->base.channels)) {
+ chan = dev_priv->channels.ptr[chid];
+ if (likely(chan))
+ ret = nouveau_finish_page_flip(chan, NULL);
+ }
+ spin_unlock_irqrestore(&dev_priv->channels.lock, flags);
+ return ret;
+}
+
+static void
+nvc0_fifo_isr_subfifo_intr(struct drm_device *dev, int unit)
+{
+ u32 stat = nv_rd32(dev, 0x040108 + (unit * 0x2000));
+ u32 addr = nv_rd32(dev, 0x0400c0 + (unit * 0x2000));
+ u32 data = nv_rd32(dev, 0x0400c4 + (unit * 0x2000));
+ u32 chid = nv_rd32(dev, 0x040120 + (unit * 0x2000)) & 0x7f;
+ u32 subc = (addr & 0x00070000);
+ u32 mthd = (addr & 0x00003ffc);
+ u32 show = stat;
+
+ if (stat & 0x00200000) {
+ if (mthd == 0x0054) {
+ if (!nvc0_fifo_page_flip(dev, chid))
+ show &= ~0x00200000;
+ }
+ }
+
+ if (show) {
+ NV_INFO(dev, "PFIFO%d:", unit);
+ nouveau_bitfield_print(nvc0_fifo_subfifo_intr, show);
+ NV_INFO(dev, "PFIFO%d: ch %d subc %d mthd 0x%04x data 0x%08x\n",
+ unit, chid, subc, mthd, data);
+ }
+
+ nv_wr32(dev, 0x0400c0 + (unit * 0x2000), 0x80600008);
+ nv_wr32(dev, 0x040108 + (unit * 0x2000), stat);
+}
+
+static void
+nvc0_fifo_isr(struct drm_device *dev)
+{
+ u32 mask = nv_rd32(dev, 0x002140);
+ u32 stat = nv_rd32(dev, 0x002100) & mask;
+
+ if (stat & 0x00000100) {
+ NV_INFO(dev, "PFIFO: unknown status 0x00000100\n");
+ nv_wr32(dev, 0x002100, 0x00000100);
+ stat &= ~0x00000100;
+ }
+
+ if (stat & 0x10000000) {
+ u32 units = nv_rd32(dev, 0x00259c);
+ u32 u = units;
+
+ while (u) {
+ int i = ffs(u) - 1;
+ nvc0_fifo_isr_vm_fault(dev, i);
+ u &= ~(1 << i);
+ }
+
+ nv_wr32(dev, 0x00259c, units);
+ stat &= ~0x10000000;
+ }
+
+ if (stat & 0x20000000) {
+ u32 units = nv_rd32(dev, 0x0025a0);
+ u32 u = units;
+
+ while (u) {
+ int i = ffs(u) - 1;
+ nvc0_fifo_isr_subfifo_intr(dev, i);
+ u &= ~(1 << i);
+ }
+
+ nv_wr32(dev, 0x0025a0, units);
+ stat &= ~0x20000000;
+ }
+
+ if (stat & 0x40000000) {
+ NV_INFO(dev, "PFIFO: unknown status 0x40000000\n");
+ nv_mask(dev, 0x002a00, 0x00000000, 0x00000000);
+ stat &= ~0x40000000;
+ }
+
+ if (stat) {
+ NV_INFO(dev, "PFIFO: unhandled status 0x%08x\n", stat);
+ nv_wr32(dev, 0x002100, stat);
+ nv_wr32(dev, 0x002140, 0);
+ }
+}
+
+static void
+nvc0_fifo_destroy(struct drm_device *dev, int engine)
+{
+ struct nvc0_fifo_priv *priv = nv_engine(dev, NVOBJ_ENGINE_FIFO);
+ struct drm_nouveau_private *dev_priv = dev->dev_private;
+
+ nouveau_vm_put(&priv->user_vma);
+ nouveau_gpuobj_ref(NULL, &priv->playlist[1]);
+ nouveau_gpuobj_ref(NULL, &priv->playlist[0]);
+
+ dev_priv->eng[engine] = NULL;
+ kfree(priv);
+}
+
+int
+nvc0_fifo_create(struct drm_device *dev)
+{
+ struct drm_nouveau_private *dev_priv = dev->dev_private;
+ struct nvc0_fifo_priv *priv;
+ int ret;
+
+ priv = kzalloc(sizeof(*priv), GFP_KERNEL);
+ if (!priv)
+ return -ENOMEM;
+
+ priv->base.base.destroy = nvc0_fifo_destroy;
+ priv->base.base.init = nvc0_fifo_init;
+ priv->base.base.fini = nvc0_fifo_fini;
+ priv->base.base.context_new = nvc0_fifo_context_new;
+ priv->base.base.context_del = nvc0_fifo_context_del;
+ priv->base.channels = 128;
+ dev_priv->eng[NVOBJ_ENGINE_FIFO] = &priv->base.base;
+
+ ret = nouveau_gpuobj_new(dev, NULL, 4096, 4096, 0, &priv->playlist[0]);
+ if (ret)
+ goto error;
+
+ ret = nouveau_gpuobj_new(dev, NULL, 4096, 4096, 0, &priv->playlist[1]);
+ if (ret)
+ goto error;
+
+ ret = nouveau_vm_get(dev_priv->bar1_vm, priv->base.channels * 0x1000,
+ 12, NV_MEM_ACCESS_RW, &priv->user_vma);
+ if (ret)
+ goto error;
+
+ nouveau_irq_register(dev, 8, nvc0_fifo_isr);
+error:
+ if (ret)
+ priv->base.base.destroy(dev, NVOBJ_ENGINE_FIFO);
+ return ret;
+}