diff options
Diffstat (limited to 'drivers/gpu/drm/sis/sis_mm.c')
-rw-r--r-- | drivers/gpu/drm/sis/sis_mm.c | 363 |
1 files changed, 0 insertions, 363 deletions
diff --git a/drivers/gpu/drm/sis/sis_mm.c b/drivers/gpu/drm/sis/sis_mm.c deleted file mode 100644 index e51d4289a3d0..000000000000 --- a/drivers/gpu/drm/sis/sis_mm.c +++ /dev/null @@ -1,363 +0,0 @@ -/************************************************************************** - * - * 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 - * without limitation the rights to use, copy, modify, merge, publish, - * 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 - * USE OR OTHER DEALINGS IN THE SOFTWARE. - * - * - **************************************************************************/ - -/* - * Authors: - * Thomas Hellström <thomas-at-tungstengraphics-dot-com> - */ - -#include <video/sisfb.h> - -#include <drm/drm_device.h> -#include <drm/drm_file.h> -#include <drm/sis_drm.h> - -#include "sis_drv.h" - - -#define VIDEO_TYPE 0 -#define AGP_TYPE 1 - - -struct sis_memblock { - struct drm_mm_node mm_node; - struct sis_memreq req; - struct list_head owner_list; -}; - -#if defined(CONFIG_FB_SIS) || defined(CONFIG_FB_SIS_MODULE) -/* fb management via fb device */ - -#define SIS_MM_ALIGN_SHIFT 0 -#define SIS_MM_ALIGN_MASK 0 - -#else /* CONFIG_FB_SIS[_MODULE] */ - -#define SIS_MM_ALIGN_SHIFT 4 -#define SIS_MM_ALIGN_MASK ((1 << SIS_MM_ALIGN_SHIFT) - 1) - -#endif /* CONFIG_FB_SIS[_MODULE] */ - -static int sis_fb_init(struct drm_device *dev, void *data, struct drm_file *file_priv) -{ - drm_sis_private_t *dev_priv = dev->dev_private; - drm_sis_fb_t *fb = data; - - mutex_lock(&dev->struct_mutex); - /* Unconditionally init the drm_mm, even though we don't use it when the - * fb sis driver is available - make cleanup easier. */ - drm_mm_init(&dev_priv->vram_mm, 0, fb->size >> SIS_MM_ALIGN_SHIFT); - - dev_priv->vram_initialized = 1; - dev_priv->vram_offset = fb->offset; - - mutex_unlock(&dev->struct_mutex); - DRM_DEBUG("offset = %lu, size = %lu\n", fb->offset, fb->size); - - return 0; -} - -static int sis_drm_alloc(struct drm_device *dev, struct drm_file *file, - void *data, int pool) -{ - drm_sis_private_t *dev_priv = dev->dev_private; - drm_sis_mem_t *mem = data; - int retval = 0, user_key; - struct sis_memblock *item; - struct sis_file_private *file_priv = file->driver_priv; - unsigned long offset; - - mutex_lock(&dev->struct_mutex); - - if (0 == ((pool == 0) ? dev_priv->vram_initialized : - dev_priv->agp_initialized)) { - DRM_ERROR - ("Attempt to allocate from uninitialized memory manager.\n"); - mutex_unlock(&dev->struct_mutex); - return -EINVAL; - } - - item = kzalloc(sizeof(*item), GFP_KERNEL); - if (!item) { - retval = -ENOMEM; - goto fail_alloc; - } - - mem->size = (mem->size + SIS_MM_ALIGN_MASK) >> SIS_MM_ALIGN_SHIFT; - if (pool == AGP_TYPE) { - retval = drm_mm_insert_node(&dev_priv->agp_mm, - &item->mm_node, - mem->size); - offset = item->mm_node.start; - } else { -#if defined(CONFIG_FB_SIS) || defined(CONFIG_FB_SIS_MODULE) - item->req.size = mem->size; - sis_malloc(&item->req); - if (item->req.size == 0) - retval = -ENOMEM; - offset = item->req.offset; -#else - retval = drm_mm_insert_node(&dev_priv->vram_mm, - &item->mm_node, - mem->size); - offset = item->mm_node.start; -#endif - } - if (retval) - goto fail_alloc; - - retval = idr_alloc(&dev_priv->object_idr, item, 1, 0, GFP_KERNEL); - if (retval < 0) - goto fail_idr; - user_key = retval; - - list_add(&item->owner_list, &file_priv->obj_list); - mutex_unlock(&dev->struct_mutex); - - mem->offset = ((pool == 0) ? - dev_priv->vram_offset : dev_priv->agp_offset) + - (offset << SIS_MM_ALIGN_SHIFT); - mem->free = user_key; - mem->size = mem->size << SIS_MM_ALIGN_SHIFT; - - return 0; - -fail_idr: - drm_mm_remove_node(&item->mm_node); -fail_alloc: - kfree(item); - mutex_unlock(&dev->struct_mutex); - - mem->offset = 0; - mem->size = 0; - mem->free = 0; - - DRM_DEBUG("alloc %d, size = %ld, offset = %ld\n", pool, mem->size, - mem->offset); - - return retval; -} - -static int sis_drm_free(struct drm_device *dev, void *data, struct drm_file *file_priv) -{ - drm_sis_private_t *dev_priv = dev->dev_private; - drm_sis_mem_t *mem = data; - struct sis_memblock *obj; - - mutex_lock(&dev->struct_mutex); - obj = idr_find(&dev_priv->object_idr, mem->free); - if (obj == NULL) { - mutex_unlock(&dev->struct_mutex); - return -EINVAL; - } - - idr_remove(&dev_priv->object_idr, mem->free); - list_del(&obj->owner_list); - if (drm_mm_node_allocated(&obj->mm_node)) - drm_mm_remove_node(&obj->mm_node); -#if defined(CONFIG_FB_SIS) || defined(CONFIG_FB_SIS_MODULE) - else - sis_free(obj->req.offset); -#endif - kfree(obj); - mutex_unlock(&dev->struct_mutex); - DRM_DEBUG("free = 0x%lx\n", mem->free); - - return 0; -} - -static int sis_fb_alloc(struct drm_device *dev, void *data, - struct drm_file *file_priv) -{ - return sis_drm_alloc(dev, file_priv, data, VIDEO_TYPE); -} - -static int sis_ioctl_agp_init(struct drm_device *dev, void *data, - struct drm_file *file_priv) -{ - drm_sis_private_t *dev_priv = dev->dev_private; - drm_sis_agp_t *agp = data; - dev_priv = dev->dev_private; - - mutex_lock(&dev->struct_mutex); - drm_mm_init(&dev_priv->agp_mm, 0, agp->size >> SIS_MM_ALIGN_SHIFT); - - dev_priv->agp_initialized = 1; - dev_priv->agp_offset = agp->offset; - mutex_unlock(&dev->struct_mutex); - - DRM_DEBUG("offset = %lu, size = %lu\n", agp->offset, agp->size); - return 0; -} - -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_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. - */ - - end = jiffies + (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; - - if (!dev_priv) - return; - - mutex_lock(&dev->struct_mutex); - if (dev_priv->vram_initialized) { - drm_mm_takedown(&dev_priv->vram_mm); - dev_priv->vram_initialized = 0; - } - if (dev_priv->agp_initialized) { - drm_mm_takedown(&dev_priv->agp_mm); - dev_priv->agp_initialized = 0; - } - dev_priv->mmio = NULL; - mutex_unlock(&dev->struct_mutex); -} - -void sis_reclaim_buffers_locked(struct drm_device *dev, - struct drm_file *file) -{ - struct sis_file_private *file_priv = file->driver_priv; - struct sis_memblock *entry, *next; - - if (!(dev->master && file->master->lock.hw_lock)) - return; - - drm_legacy_idlelock_take(&file->master->lock); - - mutex_lock(&dev->struct_mutex); - if (list_empty(&file_priv->obj_list)) { - mutex_unlock(&dev->struct_mutex); - drm_legacy_idlelock_release(&file->master->lock); - - return; - } - - sis_idle(dev); - - - list_for_each_entry_safe(entry, next, &file_priv->obj_list, - owner_list) { - list_del(&entry->owner_list); - if (drm_mm_node_allocated(&entry->mm_node)) - drm_mm_remove_node(&entry->mm_node); -#if defined(CONFIG_FB_SIS) || defined(CONFIG_FB_SIS_MODULE) - else - sis_free(entry->req.offset); -#endif - kfree(entry); - } - mutex_unlock(&dev->struct_mutex); - - drm_legacy_idlelock_release(&file->master->lock); - - return; -} - -const struct drm_ioctl_desc sis_ioctls[] = { - DRM_IOCTL_DEF_DRV(SIS_FB_ALLOC, sis_fb_alloc, DRM_AUTH), - DRM_IOCTL_DEF_DRV(SIS_FB_FREE, sis_drm_free, DRM_AUTH), - DRM_IOCTL_DEF_DRV(SIS_AGP_INIT, sis_ioctl_agp_init, DRM_AUTH | DRM_MASTER | DRM_ROOT_ONLY), - DRM_IOCTL_DEF_DRV(SIS_AGP_ALLOC, sis_ioctl_agp_alloc, DRM_AUTH), - DRM_IOCTL_DEF_DRV(SIS_AGP_FREE, sis_drm_free, DRM_AUTH), - DRM_IOCTL_DEF_DRV(SIS_FB_INIT, sis_fb_init, DRM_AUTH | DRM_MASTER | DRM_ROOT_ONLY), -}; - -int sis_max_ioctl = ARRAY_SIZE(sis_ioctls); |