drm/nv50: move evo handling to nv50_evo.c
authorBen Skeggs <bskeggs@redhat.com>
Tue, 19 Oct 2010 03:05:51 +0000 (13:05 +1000)
committerBen Skeggs <bskeggs@redhat.com>
Fri, 3 Dec 2010 05:10:52 +0000 (15:10 +1000)
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
drivers/gpu/drm/nouveau/Makefile
drivers/gpu/drm/nouveau/nouveau_reg.h
drivers/gpu/drm/nouveau/nv50_display.c
drivers/gpu/drm/nouveau/nv50_evo.c [new file with mode: 0644]
drivers/gpu/drm/nouveau/nv50_evo.h

index a541f5b..c8c8de0 100644 (file)
@@ -20,7 +20,7 @@ nouveau-y := nouveau_drv.o nouveau_state.o nouveau_channel.o nouveau_mem.o \
              nv40_grctx.o nv50_grctx.o \
              nv84_crypt.o \
              nv04_instmem.o nv50_instmem.o nvc0_instmem.o \
-             nv50_crtc.o nv50_dac.o nv50_sor.o \
+             nv50_evo.o nv50_crtc.o nv50_dac.o nv50_sor.o \
              nv50_cursor.o nv50_display.o nv50_fbcon.o \
              nv04_dac.o nv04_dfp.o nv04_tv.o nv17_tv.o nv17_tv_modes.o \
              nv04_crtc.o nv04_display.o nv04_cursor.o nv04_fbcon.o \
index 5e28bc6..d0ce86c 100644 (file)
 #define NV50_PDISPLAY_UNK30_CTRL_PENDING                             0x80000000
 #define NV50_PDISPLAY_TRAPPED_ADDR                                   0x00610080
 #define NV50_PDISPLAY_TRAPPED_DATA                                   0x00610084
-#define NV50_PDISPLAY_CHANNEL_STAT(i)                  ((i) * 0x10 + 0x00610200)
-#define NV50_PDISPLAY_CHANNEL_STAT_DMA                               0x00000010
-#define NV50_PDISPLAY_CHANNEL_STAT_DMA_DISABLED                      0x00000000
-#define NV50_PDISPLAY_CHANNEL_STAT_DMA_ENABLED                       0x00000010
-#define NV50_PDISPLAY_CHANNEL_DMA_CB(i)                ((i) * 0x10 + 0x00610204)
-#define NV50_PDISPLAY_CHANNEL_DMA_CB_LOCATION                        0x00000002
-#define NV50_PDISPLAY_CHANNEL_DMA_CB_LOCATION_VRAM                   0x00000000
-#define NV50_PDISPLAY_CHANNEL_DMA_CB_LOCATION_SYSTEM                 0x00000002
-#define NV50_PDISPLAY_CHANNEL_DMA_CB_VALID                           0x00000001
-#define NV50_PDISPLAY_CHANNEL_UNK2(i)                  ((i) * 0x10 + 0x00610208)
-#define NV50_PDISPLAY_CHANNEL_UNK3(i)                  ((i) * 0x10 + 0x0061020c)
+#define NV50_PDISPLAY_EVO_CTRL(i)                      ((i) * 0x10 + 0x00610200)
+#define NV50_PDISPLAY_EVO_CTRL_DMA                                   0x00000010
+#define NV50_PDISPLAY_EVO_CTRL_DMA_DISABLED                          0x00000000
+#define NV50_PDISPLAY_EVO_CTRL_DMA_ENABLED                           0x00000010
+#define NV50_PDISPLAY_EVO_DMA_CB(i)                    ((i) * 0x10 + 0x00610204)
+#define NV50_PDISPLAY_EVO_DMA_CB_LOCATION                            0x00000002
+#define NV50_PDISPLAY_EVO_DMA_CB_LOCATION_VRAM                       0x00000000
+#define NV50_PDISPLAY_EVO_DMA_CB_LOCATION_SYSTEM                     0x00000002
+#define NV50_PDISPLAY_EVO_DMA_CB_VALID                               0x00000001
+#define NV50_PDISPLAY_EVO_UNK2(i)                      ((i) * 0x10 + 0x00610208)
+#define NV50_PDISPLAY_EVO_HASH_TAG(i)                  ((i) * 0x10 + 0x0061020c)
 
 #define NV50_PDISPLAY_CURSOR                                         0x00610270
 #define NV50_PDISPLAY_CURSOR_CURSOR_CTRL2(i)           ((i) * 0x10 + 0x00610270)
index 7c9c7c5..db100a8 100644 (file)
@@ -46,159 +46,6 @@ nv50_sor_nr(struct drm_device *dev)
        return 4;
 }
 
-static void
-nv50_evo_channel_del(struct nouveau_channel **pchan)
-{
-       struct nouveau_channel *chan = *pchan;
-
-       if (!chan)
-               return;
-       *pchan = NULL;
-
-       nouveau_gpuobj_channel_takedown(chan);
-       nouveau_bo_unmap(chan->pushbuf_bo);
-       nouveau_bo_ref(NULL, &chan->pushbuf_bo);
-
-       if (chan->user)
-               iounmap(chan->user);
-
-       kfree(chan);
-}
-
-static int
-nv50_evo_dmaobj_new(struct nouveau_channel *evo, uint32_t class, uint32_t name,
-                   uint32_t tile_flags, uint32_t magic_flags,
-                   uint32_t offset, uint32_t limit)
-{
-       struct drm_nouveau_private *dev_priv = evo->dev->dev_private;
-       struct drm_device *dev = evo->dev;
-       struct nouveau_gpuobj *obj = NULL;
-       int ret;
-
-       ret = nouveau_gpuobj_new(dev, evo, 6*4, 32, 0, &obj);
-       if (ret)
-               return ret;
-       obj->engine = NVOBJ_ENGINE_DISPLAY;
-
-       nv_wo32(obj,  0, (tile_flags << 22) | (magic_flags << 16) | class);
-       nv_wo32(obj,  4, limit);
-       nv_wo32(obj,  8, offset);
-       nv_wo32(obj, 12, 0x00000000);
-       nv_wo32(obj, 16, 0x00000000);
-       if (dev_priv->card_type < NV_C0)
-               nv_wo32(obj, 20, 0x00010000);
-       else
-               nv_wo32(obj, 20, 0x00020000);
-       dev_priv->engine.instmem.flush(dev);
-
-       ret = nouveau_ramht_insert(evo, name, obj);
-       nouveau_gpuobj_ref(NULL, &obj);
-       if (ret) {
-               return ret;
-       }
-
-       return 0;
-}
-
-static int
-nv50_evo_channel_new(struct drm_device *dev, struct nouveau_channel **pchan)
-{
-       struct drm_nouveau_private *dev_priv = dev->dev_private;
-       struct nouveau_gpuobj *ramht = NULL;
-       struct nouveau_channel *chan;
-       int ret;
-
-       chan = kzalloc(sizeof(struct nouveau_channel), GFP_KERNEL);
-       if (!chan)
-               return -ENOMEM;
-       *pchan = chan;
-
-       chan->id = -1;
-       chan->dev = dev;
-       chan->user_get = 4;
-       chan->user_put = 0;
-
-       ret = nouveau_gpuobj_new(dev, NULL, 32768, 0x1000,
-                                NVOBJ_FLAG_ZERO_ALLOC, &chan->ramin);
-       if (ret) {
-               NV_ERROR(dev, "Error allocating EVO channel memory: %d\n", ret);
-               nv50_evo_channel_del(pchan);
-               return ret;
-       }
-
-       ret = drm_mm_init(&chan->ramin_heap, 0, 32768);
-       if (ret) {
-               NV_ERROR(dev, "Error initialising EVO PRAMIN heap: %d\n", ret);
-               nv50_evo_channel_del(pchan);
-               return ret;
-       }
-
-       ret = nouveau_gpuobj_new(dev, chan, 4096, 16, 0, &ramht);
-       if (ret) {
-               NV_ERROR(dev, "Unable to allocate EVO RAMHT: %d\n", ret);
-               nv50_evo_channel_del(pchan);
-               return ret;
-       }
-
-       ret = nouveau_ramht_new(dev, ramht, &chan->ramht);
-       nouveau_gpuobj_ref(NULL, &ramht);
-       if (ret) {
-               nv50_evo_channel_del(pchan);
-               return ret;
-       }
-
-       if (dev_priv->chipset != 0x50) {
-               ret = nv50_evo_dmaobj_new(chan, 0x3d, NvEvoFB16, 0x70, 0x19,
-                                         0, 0xffffffff);
-               if (ret) {
-                       nv50_evo_channel_del(pchan);
-                       return ret;
-               }
-
-
-               ret = nv50_evo_dmaobj_new(chan, 0x3d, NvEvoFB32, 0x7a, 0x19,
-                                         0, 0xffffffff);
-               if (ret) {
-                       nv50_evo_channel_del(pchan);
-                       return ret;
-               }
-       }
-
-       ret = nv50_evo_dmaobj_new(chan, 0x3d, NvEvoVRAM, 0, 0x19,
-                                 0, dev_priv->vram_size);
-       if (ret) {
-               nv50_evo_channel_del(pchan);
-               return ret;
-       }
-
-       ret = nouveau_bo_new(dev, NULL, 4096, 0, TTM_PL_FLAG_VRAM, 0, 0,
-                            false, true, &chan->pushbuf_bo);
-       if (ret == 0)
-               ret = nouveau_bo_pin(chan->pushbuf_bo, TTM_PL_FLAG_VRAM);
-       if (ret) {
-               NV_ERROR(dev, "Error creating EVO DMA push buffer: %d\n", ret);
-               nv50_evo_channel_del(pchan);
-               return ret;
-       }
-
-       ret = nouveau_bo_map(chan->pushbuf_bo);
-       if (ret) {
-               NV_ERROR(dev, "Error mapping EVO DMA push buffer: %d\n", ret);
-               nv50_evo_channel_del(pchan);
-               return ret;
-       }
-
-       chan->user = ioremap(pci_resource_start(dev->pdev, 0) +
-                                       NV50_PDISPLAY_USER(0), PAGE_SIZE);
-       if (!chan->user) {
-               NV_ERROR(dev, "Error mapping EVO control regs.\n");
-               nv50_evo_channel_del(pchan);
-               return -ENOMEM;
-       }
-
-       return 0;
-}
-
 int
 nv50_display_early_init(struct drm_device *dev)
 {
@@ -214,12 +61,10 @@ int
 nv50_display_init(struct drm_device *dev)
 {
        struct drm_nouveau_private *dev_priv = dev->dev_private;
-       struct nouveau_timer_engine *ptimer = &dev_priv->engine.timer;
        struct nouveau_gpio_engine *pgpio = &dev_priv->engine.gpio;
-       struct nouveau_channel *evo = dev_priv->evo;
        struct drm_connector *connector;
+       struct nouveau_channel *evo;
        int ret, i;
-       u64 start;
        u32 val;
 
        NV_DEBUG_KMS(dev, "\n");
@@ -303,7 +148,6 @@ nv50_display_init(struct drm_device *dev)
                }
        }
 
-       nv_wr32(dev, NV50_PDISPLAY_OBJECTS, (evo->ramin->vinst >> 8) | 9);
        nv_wr32(dev, NV50_PDISPLAY_PIO_CTRL, 0x00000000);
        nv_wr32(dev, 0x610028, 0x00000000);
        nv_mask(dev, NV50_PDISPLAY_INTR_0, 0x00000000, 0x00000000);
@@ -323,69 +167,12 @@ nv50_display_init(struct drm_device *dev)
                pgpio->irq_enable(dev, conn->dcb->gpio_tag, true);
        }
 
-       /* taken from nv bug #12637, attempts to un-wedge the hw if it's
-        * stuck in some unspecified state
-        */
-       start = ptimer->read(dev);
-       nv_wr32(dev, NV50_PDISPLAY_CHANNEL_STAT(0), 0x2b00);
-       while ((val = nv_rd32(dev, NV50_PDISPLAY_CHANNEL_STAT(0))) & 0x1e0000) {
-               if ((val & 0x9f0000) == 0x20000)
-                       nv_wr32(dev, NV50_PDISPLAY_CHANNEL_STAT(0),
-                                                       val | 0x800000);
-
-               if ((val & 0x3f0000) == 0x30000)
-                       nv_wr32(dev, NV50_PDISPLAY_CHANNEL_STAT(0),
-                                                       val | 0x200000);
-
-               if (ptimer->read(dev) - start > 1000000000ULL) {
-                       NV_ERROR(dev, "timeout: (0x610200 & 0x1e0000) != 0\n");
-                       NV_ERROR(dev, "0x610200 = 0x%08x\n", val);
-                       return -EBUSY;
-               }
-       }
-
-       nv_wr32(dev, NV50_PDISPLAY_CHANNEL_STAT(0), 0x1000b03);
-       if (!nv_wait(dev, NV50_PDISPLAY_CHANNEL_STAT(0),
-                    0x40000000, 0x40000000)) {
-               NV_ERROR(dev, "timeout: (0x610200 & 0x40000000) == 0x40000000\n");
-               NV_ERROR(dev, "0x610200 = 0x%08x\n",
-                         nv_rd32(dev, NV50_PDISPLAY_CHANNEL_STAT(0)));
-               return -EBUSY;
-       }
-
-       /* initialise fifo */
-       nv_wr32(dev, NV50_PDISPLAY_CHANNEL_DMA_CB(0),
-               ((evo->pushbuf_bo->bo.mem.start << PAGE_SHIFT) >> 8) |
-               NV50_PDISPLAY_CHANNEL_DMA_CB_LOCATION_VRAM |
-               NV50_PDISPLAY_CHANNEL_DMA_CB_VALID);
-       nv_wr32(dev, NV50_PDISPLAY_CHANNEL_UNK2(0), 0x00010000);
-       nv_wr32(dev, NV50_PDISPLAY_CHANNEL_UNK3(0), 0x00000002);
-       if (!nv_wait(dev, 0x610200, 0x80000000, 0x00000000)) {
-               NV_ERROR(dev, "timeout: (0x610200 & 0x80000000) == 0\n");
-               NV_ERROR(dev, "0x610200 = 0x%08x\n", nv_rd32(dev, 0x610200));
-               return -EBUSY;
-       }
-       nv_wr32(dev, NV50_PDISPLAY_CHANNEL_STAT(0),
-               (nv_rd32(dev, NV50_PDISPLAY_CHANNEL_STAT(0)) & ~0x00000003) |
-                NV50_PDISPLAY_CHANNEL_STAT_DMA_ENABLED);
-       nv_wr32(dev, NV50_PDISPLAY_USER_PUT(0), 0);
-       nv_wr32(dev, NV50_PDISPLAY_CHANNEL_STAT(0), 0x01000003 |
-               NV50_PDISPLAY_CHANNEL_STAT_DMA_ENABLED);
-
-       /* enable error reporting on the channel */
-       nv_mask(dev, 0x610028, 0x00000000, 0x00010001 << 0);
-
-       evo->dma.max = (4096/4) - 2;
-       evo->dma.put = 0;
-       evo->dma.cur = evo->dma.put;
-       evo->dma.free = evo->dma.max - evo->dma.cur;
-
-       ret = RING_SPACE(evo, NOUVEAU_DMA_SKIPS);
+       ret = nv50_evo_init(dev);
        if (ret)
                return ret;
+       evo = dev_priv->evo;
 
-       for (i = 0; i < NOUVEAU_DMA_SKIPS; i++)
-               OUT_RING(evo, 0);
+       nv_wr32(dev, NV50_PDISPLAY_OBJECTS, (evo->ramin->vinst >> 8) | 9);
 
        ret = RING_SPACE(evo, 11);
        if (ret)
@@ -449,12 +236,7 @@ static int nv50_display_disable(struct drm_device *dev)
                }
        }
 
-       nv_wr32(dev, NV50_PDISPLAY_CHANNEL_STAT(0), 0);
-       if (!nv_wait(dev, NV50_PDISPLAY_CHANNEL_STAT(0), 0x1e0000, 0)) {
-               NV_ERROR(dev, "timeout: (0x610200 & 0x1e0000) == 0\n");
-               NV_ERROR(dev, "0x610200 = 0x%08x\n",
-                         nv_rd32(dev, NV50_PDISPLAY_CHANNEL_STAT(0)));
-       }
+       nv50_evo_fini(dev);
 
        for (i = 0; i < 3; i++) {
                if (!nv_wait(dev, NV50_PDISPLAY_SOR_DPMS_STATE(i),
@@ -504,13 +286,6 @@ int nv50_display_create(struct drm_device *dev)
 
        dev->mode_config.fb_base = dev_priv->fb_phys;
 
-       /* Create EVO channel */
-       ret = nv50_evo_channel_new(dev, &dev_priv->evo);
-       if (ret) {
-               NV_ERROR(dev, "Error creating EVO channel: %d\n", ret);
-               return ret;
-       }
-
        /* Create CRTC objects */
        for (i = 0; i < 2; i++)
                nv50_crtc_create(dev, i);
@@ -565,14 +340,11 @@ int nv50_display_create(struct drm_device *dev)
 void
 nv50_display_destroy(struct drm_device *dev)
 {
-       struct drm_nouveau_private *dev_priv = dev->dev_private;
-
        NV_DEBUG_KMS(dev, "\n");
 
        drm_mode_config_cleanup(dev);
 
        nv50_display_disable(dev);
-       nv50_evo_channel_del(&dev_priv->evo);
 }
 
 static u16
diff --git a/drivers/gpu/drm/nouveau/nv50_evo.c b/drivers/gpu/drm/nouveau/nv50_evo.c
new file mode 100644 (file)
index 0000000..211f5fb
--- /dev/null
@@ -0,0 +1,295 @@
+/*
+ * 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 "nouveau_dma.h"
+#include "nouveau_ramht.h"
+
+static void
+nv50_evo_channel_del(struct nouveau_channel **pchan)
+{
+       struct nouveau_channel *chan = *pchan;
+
+       if (!chan)
+               return;
+       *pchan = NULL;
+
+       nouveau_gpuobj_channel_takedown(chan);
+       nouveau_bo_unmap(chan->pushbuf_bo);
+       nouveau_bo_ref(NULL, &chan->pushbuf_bo);
+
+       if (chan->user)
+               iounmap(chan->user);
+
+       kfree(chan);
+}
+
+int
+nv50_evo_dmaobj_new(struct nouveau_channel *evo, u32 class, u32 name,
+                   u32 tile_flags, u32 magic_flags, u32 offset, u32 limit)
+{
+       struct drm_nouveau_private *dev_priv = evo->dev->dev_private;
+       struct drm_device *dev = evo->dev;
+       struct nouveau_gpuobj *obj = NULL;
+       int ret;
+
+       ret = nouveau_gpuobj_new(dev, evo, 6*4, 32, 0, &obj);
+       if (ret)
+               return ret;
+       obj->engine = NVOBJ_ENGINE_DISPLAY;
+
+       nv_wo32(obj,  0, (tile_flags << 22) | (magic_flags << 16) | class);
+       nv_wo32(obj,  4, limit);
+       nv_wo32(obj,  8, offset);
+       nv_wo32(obj, 12, 0x00000000);
+       nv_wo32(obj, 16, 0x00000000);
+       if (dev_priv->card_type < NV_C0)
+               nv_wo32(obj, 20, 0x00010000);
+       else
+               nv_wo32(obj, 20, 0x00020000);
+       dev_priv->engine.instmem.flush(dev);
+
+       ret = nouveau_ramht_insert(evo, name, obj);
+       nouveau_gpuobj_ref(NULL, &obj);
+       if (ret) {
+               return ret;
+       }
+
+       return 0;
+}
+
+static int
+nv50_evo_channel_new(struct drm_device *dev, struct nouveau_channel **pchan)
+{
+       struct drm_nouveau_private *dev_priv = dev->dev_private;
+       struct nouveau_gpuobj *ramht = NULL;
+       struct nouveau_channel *chan;
+       int ret;
+
+       chan = kzalloc(sizeof(struct nouveau_channel), GFP_KERNEL);
+       if (!chan)
+               return -ENOMEM;
+       *pchan = chan;
+
+       chan->id = -1;
+       chan->dev = dev;
+       chan->user_get = 4;
+       chan->user_put = 0;
+
+       ret = nouveau_gpuobj_new(dev, NULL, 32768, 0x1000,
+                                NVOBJ_FLAG_ZERO_ALLOC, &chan->ramin);
+       if (ret) {
+               NV_ERROR(dev, "Error allocating EVO channel memory: %d\n", ret);
+               nv50_evo_channel_del(pchan);
+               return ret;
+       }
+
+       ret = drm_mm_init(&chan->ramin_heap, 0, 32768);
+       if (ret) {
+               NV_ERROR(dev, "Error initialising EVO PRAMIN heap: %d\n", ret);
+               nv50_evo_channel_del(pchan);
+               return ret;
+       }
+
+       ret = nouveau_gpuobj_new(dev, chan, 4096, 16, 0, &ramht);
+       if (ret) {
+               NV_ERROR(dev, "Unable to allocate EVO RAMHT: %d\n", ret);
+               nv50_evo_channel_del(pchan);
+               return ret;
+       }
+
+       ret = nouveau_ramht_new(dev, ramht, &chan->ramht);
+       nouveau_gpuobj_ref(NULL, &ramht);
+       if (ret) {
+               nv50_evo_channel_del(pchan);
+               return ret;
+       }
+
+       if (dev_priv->chipset != 0x50) {
+               ret = nv50_evo_dmaobj_new(chan, 0x3d, NvEvoFB16, 0x70, 0x19,
+                                         0, 0xffffffff);
+               if (ret) {
+                       nv50_evo_channel_del(pchan);
+                       return ret;
+               }
+
+
+               ret = nv50_evo_dmaobj_new(chan, 0x3d, NvEvoFB32, 0x7a, 0x19,
+                                         0, 0xffffffff);
+               if (ret) {
+                       nv50_evo_channel_del(pchan);
+                       return ret;
+               }
+       }
+
+       ret = nv50_evo_dmaobj_new(chan, 0x3d, NvEvoVRAM, 0, 0x19,
+                                 0, dev_priv->vram_size);
+       if (ret) {
+               nv50_evo_channel_del(pchan);
+               return ret;
+       }
+
+       ret = nouveau_bo_new(dev, NULL, 4096, 0, TTM_PL_FLAG_VRAM, 0, 0,
+                            false, true, &chan->pushbuf_bo);
+       if (ret == 0)
+               ret = nouveau_bo_pin(chan->pushbuf_bo, TTM_PL_FLAG_VRAM);
+       if (ret) {
+               NV_ERROR(dev, "Error creating EVO DMA push buffer: %d\n", ret);
+               nv50_evo_channel_del(pchan);
+               return ret;
+       }
+
+       ret = nouveau_bo_map(chan->pushbuf_bo);
+       if (ret) {
+               NV_ERROR(dev, "Error mapping EVO DMA push buffer: %d\n", ret);
+               nv50_evo_channel_del(pchan);
+               return ret;
+       }
+
+       chan->user = ioremap(pci_resource_start(dev->pdev, 0) +
+                                       NV50_PDISPLAY_USER(0), PAGE_SIZE);
+       if (!chan->user) {
+               NV_ERROR(dev, "Error mapping EVO control regs.\n");
+               nv50_evo_channel_del(pchan);
+               return -ENOMEM;
+       }
+
+       return 0;
+}
+
+static int
+nv50_evo_channel_init(struct nouveau_channel *evo)
+{
+       struct drm_nouveau_private *dev_priv = evo->dev->dev_private;
+       struct nouveau_timer_engine *ptimer = &dev_priv->engine.timer;
+       struct drm_device *dev = evo->dev;
+       int ret, i;
+       u64 start;
+       u32 tmp;
+
+       /* taken from nv bug #12637, attempts to un-wedge the hw if it's
+        * stuck in some unspecified state
+        */
+       start = ptimer->read(dev);
+       nv_wr32(dev, NV50_PDISPLAY_EVO_CTRL(0), 0x2b00);
+       while ((tmp = nv_rd32(dev, NV50_PDISPLAY_EVO_CTRL(0))) & 0x1e0000) {
+               if ((tmp & 0x9f0000) == 0x20000)
+                       nv_wr32(dev, NV50_PDISPLAY_EVO_CTRL(0), tmp | 0x800000);
+
+               if ((tmp & 0x3f0000) == 0x30000)
+                       nv_wr32(dev, NV50_PDISPLAY_EVO_CTRL(0), tmp | 0x200000);
+
+               if (ptimer->read(dev) - start > 1000000000ULL) {
+                       NV_ERROR(dev, "timeout: (0x610200 & 0x1e0000) != 0\n");
+                       NV_ERROR(dev, "0x610200 = 0x%08x\n", tmp);
+                       return -EBUSY;
+               }
+       }
+
+       nv_wr32(dev, NV50_PDISPLAY_EVO_CTRL(0), 0x1000b03);
+       if (!nv_wait(dev, NV50_PDISPLAY_EVO_CTRL(0),
+                    0x40000000, 0x40000000)) {
+               NV_ERROR(dev, "timeout: (0x610200 & 0x40000000) == 0x40000000\n");
+               NV_ERROR(dev, "0x610200 = 0x%08x\n",
+                         nv_rd32(dev, NV50_PDISPLAY_EVO_CTRL(0)));
+               return -EBUSY;
+       }
+
+       /* initialise fifo */
+       nv_wr32(dev, NV50_PDISPLAY_EVO_DMA_CB(0),
+               ((evo->pushbuf_bo->bo.mem.start << PAGE_SHIFT) >> 8) |
+               NV50_PDISPLAY_EVO_DMA_CB_LOCATION_VRAM |
+               NV50_PDISPLAY_EVO_DMA_CB_VALID);
+       nv_wr32(dev, NV50_PDISPLAY_EVO_UNK2(0), 0x00010000);
+       nv_wr32(dev, NV50_PDISPLAY_EVO_HASH_TAG(0), 0x00000002);
+       if (!nv_wait(dev, 0x610200, 0x80000000, 0x00000000)) {
+               NV_ERROR(dev, "timeout: (0x610200 & 0x80000000) == 0\n");
+               NV_ERROR(dev, "0x610200 = 0x%08x\n", nv_rd32(dev, 0x610200));
+               return -EBUSY;
+       }
+       nv_wr32(dev, NV50_PDISPLAY_EVO_CTRL(0),
+               (nv_rd32(dev, NV50_PDISPLAY_EVO_CTRL(0)) & ~0x00000003) |
+                NV50_PDISPLAY_EVO_CTRL_DMA_ENABLED);
+       nv_wr32(dev, NV50_PDISPLAY_USER_PUT(0), 0);
+       nv_wr32(dev, NV50_PDISPLAY_EVO_CTRL(0), 0x01000003 |
+               NV50_PDISPLAY_EVO_CTRL_DMA_ENABLED);
+
+       /* enable error reporting on the channel */
+       nv_mask(dev, 0x610028, 0x00000000, 0x00010001 << 0);
+
+       evo->dma.max = (4096/4) - 2;
+       evo->dma.put = 0;
+       evo->dma.cur = evo->dma.put;
+       evo->dma.free = evo->dma.max - evo->dma.cur;
+
+       ret = RING_SPACE(evo, NOUVEAU_DMA_SKIPS);
+       if (ret)
+               return ret;
+
+       for (i = 0; i < NOUVEAU_DMA_SKIPS; i++)
+               OUT_RING(evo, 0);
+
+       return 0;
+}
+
+static void
+nv50_evo_channel_fini(struct nouveau_channel *evo)
+{
+       struct drm_device *dev = evo->dev;
+
+       nv_wr32(dev, NV50_PDISPLAY_EVO_CTRL(0), 0);
+       if (!nv_wait(dev, NV50_PDISPLAY_EVO_CTRL(0), 0x1e0000, 0)) {
+               NV_ERROR(dev, "timeout: (0x610200 & 0x1e0000) == 0\n");
+               NV_ERROR(dev, "0x610200 = 0x%08x\n",
+                         nv_rd32(dev, NV50_PDISPLAY_EVO_CTRL(0)));
+       }
+}
+
+int
+nv50_evo_init(struct drm_device *dev)
+{
+       struct drm_nouveau_private *dev_priv = dev->dev_private;
+       int ret;
+
+       if (!dev_priv->evo) {
+               ret = nv50_evo_channel_new(dev, &dev_priv->evo);
+               if (ret)
+                       return ret;
+       }
+
+       return nv50_evo_channel_init(dev_priv->evo);
+}
+
+void
+nv50_evo_fini(struct drm_device *dev)
+{
+       struct drm_nouveau_private *dev_priv = dev->dev_private;
+
+       if (dev_priv->evo) {
+               nv50_evo_channel_fini(dev_priv->evo);
+               nv50_evo_channel_del(&dev_priv->evo);
+       }
+}
index aae1334..aa4f0d3 100644 (file)
  *
  */
 
+#ifndef __NV50_EVO_H__
+#define __NV50_EVO_H__
+
+int  nv50_evo_init(struct drm_device *dev);
+void nv50_evo_fini(struct drm_device *dev);
+int  nv50_evo_dmaobj_new(struct nouveau_channel *, u32 class, u32 name,
+                        u32 tile_flags, u32 magic_flags,
+                        u32 offset, u32 limit);
+
 #define NV50_EVO_UPDATE                                              0x00000080
 #define NV50_EVO_UNK84                                               0x00000084
 #define NV50_EVO_UNK84_NOTIFY                                        0x40000000
 #define NV50_EVO_CRTC_SCALE_RES1                                     0x000008d8
 #define NV50_EVO_CRTC_SCALE_RES2                                     0x000008dc
 
+#endif