diff options
Diffstat (limited to 'drivers/char/drm/sis_mm.c')
-rw-r--r-- | drivers/char/drm/sis_mm.c | 333 |
1 files changed, 0 insertions, 333 deletions
diff --git a/drivers/char/drm/sis_mm.c b/drivers/char/drm/sis_mm.c deleted file mode 100644 index b3878770fce1..000000000000 --- a/drivers/char/drm/sis_mm.c +++ /dev/null @@ -1,333 +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 "drmP.h" -#include "sis_drm.h" -#include "sis_drv.h" - -#include <video/sisfb.h> - -#define VIDEO_TYPE 0 -#define AGP_TYPE 1 - - -#if defined(CONFIG_FB_SIS) -/* fb management via fb device */ - -#define SIS_MM_ALIGN_SHIFT 0 -#define SIS_MM_ALIGN_MASK 0 - -static void *sis_sman_mm_allocate(void *private, unsigned long size, - unsigned alignment) -{ - struct sis_memreq req; - - req.size = size; - sis_malloc(&req); - if (req.size == 0) - return NULL; - else - return (void *)~req.offset; -} - -static void sis_sman_mm_free(void *private, void *ref) -{ - sis_free(~((unsigned long)ref)); -} - -static void sis_sman_mm_destroy(void *private) -{ - ; -} - -static unsigned long sis_sman_mm_offset(void *private, void *ref) -{ - return ~((unsigned long)ref); -} - -#else /* CONFIG_FB_SIS */ - -#define SIS_MM_ALIGN_SHIFT 4 -#define SIS_MM_ALIGN_MASK ( (1 << SIS_MM_ALIGN_SHIFT) - 1) - -#endif /* CONFIG_FB_SIS */ - -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; - int ret; - - mutex_lock(&dev->struct_mutex); -#if defined(CONFIG_FB_SIS) - { - 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; - sman_mm.destroy = sis_sman_mm_destroy; - sman_mm.offset = sis_sman_mm_offset; - ret = - drm_sman_set_manager(&dev_priv->sman, VIDEO_TYPE, &sman_mm); - } -#else - ret = drm_sman_set_range(&dev_priv->sman, VIDEO_TYPE, 0, - fb->size >> SIS_MM_ALIGN_SHIFT); -#endif - - if (ret) { - DRM_ERROR("VRAM memory manager initialisation error\n"); - mutex_unlock(&dev->struct_mutex); - return ret; - } - - dev_priv->vram_initialized = 1; - dev_priv->vram_offset = fb->offset; - - mutex_unlock(&dev->struct_mutex); - DRM_DEBUG("offset = %u, size = %u\n", fb->offset, fb->size); - - return 0; -} - -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 *mem = data; - int retval = 0; - struct drm_memblock_item *item; - - 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; - } - - 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); - - mutex_unlock(&dev->struct_mutex); - if (item) { - 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; - } else { - mem->offset = 0; - mem->size = 0; - mem->free = 0; - retval = -ENOMEM; - } - - DRM_DEBUG("alloc %d, size = %d, offset = %d\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; - int ret; - - 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(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; - int ret; - dev_priv = dev->dev_private; - - mutex_lock(&dev->struct_mutex); - ret = drm_sman_set_range(&dev_priv->sman, AGP_TYPE, 0, - agp->size >> SIS_MM_ALIGN_SHIFT); - - if (ret) { - DRM_ERROR("AGP memory manager initialisation error\n"); - mutex_unlock(&dev->struct_mutex); - return ret; - } - - dev_priv->agp_initialized = 1; - dev_priv->agp_offset = agp->offset; - mutex_unlock(&dev->struct_mutex); - - DRM_DEBUG("offset = %u, size = %u\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 + (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; - - if (!dev_priv) - return; - - mutex_lock(&dev->struct_mutex); - drm_sman_cleanup(&dev_priv->sman); - dev_priv->vram_initialized = 0; - 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_priv) -{ - drm_sis_private_t *dev_priv = dev->dev_private; - - mutex_lock(&dev->struct_mutex); - if (drm_sman_owner_clean(&dev_priv->sman, (unsigned long)file_priv)) { - mutex_unlock(&dev->struct_mutex); - return; - } - - if (dev->driver->dma_quiescent) { - dev->driver->dma_quiescent(dev); - } - - drm_sman_owner_cleanup(&dev_priv->sman, (unsigned long)file_priv); - mutex_unlock(&dev->struct_mutex); - return; -} - -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); |