OSDN Git Service

libdrm/nouveau: incr refcount on ref fence before decr on old fence
[android-x86/external-libdrm.git] / linux-core / sis_mm.c
index a89ed64..6782731 100644 (file)
@@ -1,8 +1,8 @@
 /**************************************************************************
- * 
+ *
  * Copyright 2006 Tungsten Graphics, Inc., Bismarck, ND., USA.
  * 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
  * distribute, sub license, 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 (including the
  * next paragraph) 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 NON-INFRINGEMENT. IN NO EVENT SHALL
- * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS 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 
+ * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS 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 "sis_drv.h"
 
 #if defined(__linux__)
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
 #include <video/sisfb.h>
-#else
-#include <linux/sisfb.h>
-#endif
 #endif
 
 #define VIDEO_TYPE 0
@@ -78,26 +74,23 @@ static void sis_sman_mm_destroy(void *private)
        ;
 }
 
-unsigned long sis_sman_mm_offset(void *private, void *ref)
+static unsigned long sis_sman_mm_offset(void *private, void *ref)
 {
        return ~((unsigned long)ref);
 }
 
 #endif
 
-static int sis_fb_init(DRM_IOCTL_ARGS)
+static int sis_fb_init(struct drm_device *dev, void *data, struct drm_file *file_priv)
 {
-       DRM_DEVICE;
        drm_sis_private_t *dev_priv = dev->dev_private;
-       drm_sis_fb_t fb;
+       drm_sis_fb_t *fb = data;
        int ret;
 
-       DRM_COPY_FROM_USER_IOCTL(fb, (drm_sis_fb_t __user *) data, sizeof(fb));
-
-       down(&dev->struct_sem);
+       mutex_lock(&dev->struct_mutex);
 #if defined(__linux__) && defined(CONFIG_FB_SIS)
        {
-               drm_sman_mm_t sman_mm;
+               struct drm_sman_mm sman_mm;
                sman_mm.private = (void *)0xFFFFFFFF;
                sman_mm.allocate = sis_sman_mm_allocate;
                sman_mm.free = sis_sman_mm_free;
@@ -108,130 +101,190 @@ static int sis_fb_init(DRM_IOCTL_ARGS)
        }
 #else
        ret = drm_sman_set_range(&dev_priv->sman, VIDEO_TYPE, 0,
-                                fb.size >> SIS_MM_ALIGN_SHIFT);
+                                fb->size >> SIS_MM_ALIGN_SHIFT);
 #endif
 
        if (ret) {
                DRM_ERROR("VRAM memory manager initialisation error\n");
-               up(&dev->struct_sem);
+               mutex_unlock(&dev->struct_mutex);
                return ret;
        }
 
-       dev_priv->vram_initialized = TRUE;
-       dev_priv->vram_offset = fb.offset;
+       dev_priv->vram_initialized = 1;
+       dev_priv->vram_offset = fb->offset;
 
-       up(&dev->struct_sem);
-       DRM_DEBUG("offset = %u, size = %u", fb.offset, fb.size);
+       mutex_unlock(&dev->struct_mutex);
+       DRM_DEBUG("offset = %u, size = %u\n", fb->offset, fb->size);
 
        return 0;
 }
 
-static int sis_drm_alloc(drm_device_t * dev, drm_file_t * priv,
-                        unsigned long data, int pool)
+static int sis_drm_alloc(struct drm_device *dev, struct drm_file *file_priv,
+                        void *data, int pool)
 {
        drm_sis_private_t *dev_priv = dev->dev_private;
-       drm_sis_mem_t __user *argp = (drm_sis_mem_t __user *) data;
-       drm_sis_mem_t mem;
+       drm_sis_mem_t *mem = data;
        int retval = 0;
-       drm_memblock_item_t *item;
+       struct drm_memblock_item *item;
 
-       DRM_COPY_FROM_USER_IOCTL(mem, argp, sizeof(mem));
+       mutex_lock(&dev->struct_mutex);
 
-       down(&dev->struct_sem);
-
-       if (FALSE == ((pool == 0) ? dev_priv->vram_initialized :
+       if (0 == ((pool == 0) ? dev_priv->vram_initialized :
                      dev_priv->agp_initialized)) {
                DRM_ERROR
                    ("Attempt to allocate from uninitialized memory manager.\n");
-               return DRM_ERR(EINVAL);
+               mutex_unlock(&dev->struct_mutex);
+               return -EINVAL;
        }
 
-       mem.size = (mem.size + SIS_MM_ALIGN_MASK) >> SIS_MM_ALIGN_SHIFT;
-       item = drm_sman_alloc(&dev_priv->sman, pool, mem.size, 0,
-                             (unsigned long)priv);
+       mem->size = (mem->size + SIS_MM_ALIGN_MASK) >> SIS_MM_ALIGN_SHIFT;
+       item = drm_sman_alloc(&dev_priv->sman, pool, mem->size, 0,
+                             (unsigned long)file_priv);
 
-       up(&dev->struct_sem);
+       mutex_unlock(&dev->struct_mutex);
        if (item) {
-               mem.offset = ((pool == 0) ?
+               mem->offset = ((pool == 0) ?
                              dev_priv->vram_offset : dev_priv->agp_offset) +
                    (item->mm->
                     offset(item->mm, item->mm_info) << SIS_MM_ALIGN_SHIFT);
-               mem.free = item->user_hash.key;
-               mem.size = mem.size << SIS_MM_ALIGN_SHIFT;
+               mem->free = item->user_hash.key;
+               mem->size = mem->size << SIS_MM_ALIGN_SHIFT;
        } else {
-               mem.offset = 0;
-               mem.size = 0;
-               mem.free = 0;
-               retval = DRM_ERR(ENOMEM);
+               mem->offset = 0;
+               mem->size = 0;
+               mem->free = 0;
+               retval = -ENOMEM;
        }
 
-       DRM_COPY_TO_USER_IOCTL(argp, mem, sizeof(mem));
-
-       DRM_DEBUG("alloc %d, size = %d, offset = %d\n", pool, mem.size,
-                 mem.offset);
+       DRM_DEBUG("alloc %d, size = %d, offset = %d\n", pool, mem->size,
+                 mem->offset);
 
        return retval;
 }
 
-static int sis_drm_free(DRM_IOCTL_ARGS)
+static int sis_drm_free(struct drm_device *dev, void *data, struct drm_file *file_priv)
 {
-       DRM_DEVICE;
        drm_sis_private_t *dev_priv = dev->dev_private;
-       drm_sis_mem_t mem;
+       drm_sis_mem_t *mem = data;
        int ret;
 
-       DRM_COPY_FROM_USER_IOCTL(mem, (drm_sis_mem_t __user *) data,
-                                sizeof(mem));
-
-       down(&dev->struct_sem);
-       ret = drm_sman_free_key(&dev_priv->sman, mem.free);
-       up(&dev->struct_sem);
-       DRM_DEBUG("free = 0x%lx\n", mem.free);
+       mutex_lock(&dev->struct_mutex);
+       ret = drm_sman_free_key(&dev_priv->sman, mem->free);
+       mutex_unlock(&dev->struct_mutex);
+       DRM_DEBUG("free = 0x%lx\n", mem->free);
 
        return ret;
 }
 
-static int sis_fb_alloc(DRM_IOCTL_ARGS)
+static int sis_fb_alloc(struct drm_device *dev, void *data,
+                       struct drm_file *file_priv)
 {
-       DRM_DEVICE;
-       return sis_drm_alloc(dev, priv, data, VIDEO_TYPE);
+       return sis_drm_alloc(dev, file_priv, data, VIDEO_TYPE);
 }
 
-static int sis_ioctl_agp_init(DRM_IOCTL_ARGS)
+static int sis_ioctl_agp_init(struct drm_device *dev, void *data,
+                             struct drm_file *file_priv)
 {
-       DRM_DEVICE;
        drm_sis_private_t *dev_priv = dev->dev_private;
-       drm_sis_agp_t agp;
+       drm_sis_agp_t *agp = data;
        int ret;
        dev_priv = dev->dev_private;
 
-       DRM_COPY_FROM_USER_IOCTL(agp, (drm_sis_agp_t __user *) data,
-                                sizeof(agp));
-       down(&dev->struct_sem);
+       mutex_lock(&dev->struct_mutex);
        ret = drm_sman_set_range(&dev_priv->sman, AGP_TYPE, 0,
-                                agp.size >> SIS_MM_ALIGN_SHIFT);
+                                agp->size >> SIS_MM_ALIGN_SHIFT);
 
        if (ret) {
                DRM_ERROR("AGP memory manager initialisation error\n");
-               up(&dev->struct_sem);
+               mutex_unlock(&dev->struct_mutex);
                return ret;
        }
 
-       dev_priv->agp_initialized = TRUE;
-       dev_priv->agp_offset = agp.offset;
-       up(&dev->struct_sem);
+       dev_priv->agp_initialized = 1;
+       dev_priv->agp_offset = agp->offset;
+       mutex_unlock(&dev->struct_mutex);
 
-       DRM_DEBUG("offset = %u, size = %u", agp.offset, agp.size);
+       DRM_DEBUG("offset = %u, size = %u\n", agp->offset, agp->size);
        return 0;
 }
 
-static int sis_ioctl_agp_alloc(DRM_IOCTL_ARGS)
+static int sis_ioctl_agp_alloc(struct drm_device *dev, void *data,
+                              struct drm_file *file_priv)
+{
+
+       return sis_drm_alloc(dev, file_priv, data, AGP_TYPE);
+}
+
+static drm_local_map_t *sis_reg_init(struct drm_device *dev)
+{
+       struct drm_map_list *entry;
+       drm_local_map_t *map;
+
+       list_for_each_entry(entry, &dev->maplist, head) {
+               map = entry->map;
+               if (!map)
+                       continue;
+               if (map->type == _DRM_REGISTERS) {
+                       return map;
+               }
+       }
+       return NULL;
+}
+
+int sis_idle(struct drm_device *dev)
 {
-       DRM_DEVICE;
+       drm_sis_private_t *dev_priv = dev->dev_private;
+       uint32_t idle_reg;
+       unsigned long end;
+       int i;
+
+       if (dev_priv->idle_fault)
+               return 0;
+
+       if (dev_priv->mmio == NULL) {
+               dev_priv->mmio = sis_reg_init(dev);
+               if (dev_priv->mmio == NULL) {
+                       DRM_ERROR("Could not find register map.\n");
+                       return 0;
+               }
+       }
+
+       /*
+        * Implement a device switch here if needed
+        */
+
+       if (dev_priv->chipset != SIS_CHIP_315)
+               return 0;
+
+       /*
+        * Timeout after 3 seconds. We cannot use DRM_WAIT_ON here
+        * because its polling frequency is too low.
+        */
 
-       return sis_drm_alloc(dev, priv, data, AGP_TYPE);
+       end = jiffies + (DRM_HZ * 3);
+
+       for (i=0; i<4; ++i) {
+               do {
+                       idle_reg = SIS_READ(0x85cc);
+               } while ( !time_after_eq(jiffies, end) &&
+                         ((idle_reg & 0x80000000) != 0x80000000));
+       }
+
+       if (time_after_eq(jiffies, end)) {
+               DRM_ERROR("Graphics engine idle timeout. "
+                         "Disabling idle check\n");
+               dev_priv->idle_fault = 1;
+       }
+
+       /*
+        * The caller never sees an error code. It gets trapped
+        * in libdrm.
+        */
+
+       return 0;
 }
 
+
 void sis_lastclose(struct drm_device *dev)
 {
        drm_sis_private_t *dev_priv = dev->dev_private;
@@ -239,21 +292,22 @@ void sis_lastclose(struct drm_device *dev)
        if (!dev_priv)
                return;
 
-       down(&dev->struct_sem);
+       mutex_lock(&dev->struct_mutex);
        drm_sman_cleanup(&dev_priv->sman);
-       dev_priv->vram_initialized = FALSE;
-       dev_priv->agp_initialized = FALSE;
-       up(&dev->struct_sem);
+       dev_priv->vram_initialized = 0;
+       dev_priv->agp_initialized = 0;
+       dev_priv->mmio = NULL;
+       mutex_unlock(&dev->struct_mutex);
 }
 
-void sis_reclaim_buffers_locked(drm_device_t * dev, struct file *filp)
+void sis_reclaim_buffers_locked(struct drm_device * dev,
+                               struct drm_file *file_priv)
 {
        drm_sis_private_t *dev_priv = dev->dev_private;
-       drm_file_t *priv = filp->private_data;
 
-       down(&dev->struct_sem);
-       if (drm_sman_owner_clean(&dev_priv->sman, (unsigned long)priv)) {
-               up(&dev->struct_sem);
+       mutex_lock(&dev->struct_mutex);
+       if (drm_sman_owner_clean(&dev_priv->sman, (unsigned long)file_priv)) {
+               mutex_unlock(&dev->struct_mutex);
                return;
        }
 
@@ -261,25 +315,18 @@ void sis_reclaim_buffers_locked(drm_device_t * dev, struct file *filp)
                dev->driver->dma_quiescent(dev);
        }
 
-       drm_sman_owner_cleanup(&dev_priv->sman, (unsigned long)priv);
-       up(&dev->struct_sem);
+       drm_sman_owner_cleanup(&dev_priv->sman, (unsigned long)file_priv);
+       mutex_unlock(&dev->struct_mutex);
        return;
 }
 
-drm_ioctl_desc_t sis_ioctls[] = {
-       [DRM_IOCTL_NR(DRM_SIS_FB_ALLOC)] = {sis_fb_alloc, DRM_AUTH}
-       ,
-       [DRM_IOCTL_NR(DRM_SIS_FB_FREE)] = {sis_drm_free, DRM_AUTH}
-       ,
-       [DRM_IOCTL_NR(DRM_SIS_AGP_INIT)] =
-           {sis_ioctl_agp_init, DRM_AUTH | DRM_MASTER | DRM_ROOT_ONLY}
-       ,
-       [DRM_IOCTL_NR(DRM_SIS_AGP_ALLOC)] = {sis_ioctl_agp_alloc, DRM_AUTH}
-       ,
-       [DRM_IOCTL_NR(DRM_SIS_AGP_FREE)] = {sis_drm_free, DRM_AUTH}
-       ,
-       [DRM_IOCTL_NR(DRM_SIS_FB_INIT)] =
-           {sis_fb_init, DRM_AUTH | DRM_MASTER | DRM_ROOT_ONLY}
+struct drm_ioctl_desc sis_ioctls[] = {
+       DRM_IOCTL_DEF(DRM_SIS_FB_ALLOC, sis_fb_alloc, DRM_AUTH),
+       DRM_IOCTL_DEF(DRM_SIS_FB_FREE, sis_drm_free, DRM_AUTH),
+       DRM_IOCTL_DEF(DRM_SIS_AGP_INIT, sis_ioctl_agp_init, DRM_AUTH | DRM_MASTER | DRM_ROOT_ONLY),
+       DRM_IOCTL_DEF(DRM_SIS_AGP_ALLOC, sis_ioctl_agp_alloc, DRM_AUTH),
+       DRM_IOCTL_DEF(DRM_SIS_AGP_FREE, sis_drm_free, DRM_AUTH),
+       DRM_IOCTL_DEF(DRM_SIS_FB_INIT, sis_fb_init, DRM_AUTH | DRM_MASTER | DRM_ROOT_ONLY),
 };
 
 int sis_max_ioctl = DRM_ARRAY_SIZE(sis_ioctls);