Current Path : /sys/dev/drm/ |
FreeBSD hs32.drive.ne.jp 9.1-RELEASE FreeBSD 9.1-RELEASE #1: Wed Jan 14 12:18:08 JST 2015 root@hs32.drive.ne.jp:/sys/amd64/compile/hs32 amd64 |
Current File : //sys/dev/drm/via_mm.c |
/*- * 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 AUTHORS OR COPYRIGHT HOLDERS AND/OR THEIR 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 <sys/cdefs.h> __FBSDID("$FreeBSD: release/9.1.0/sys/dev/drm/via_mm.c 207066 2010-04-22 18:21:25Z rnoland $"); #include "dev/drm/drmP.h" #include "dev/drm/via_drm.h" #include "dev/drm/via_drv.h" #include "dev/drm/drm_sman.h" #define VIA_MM_ALIGN_SHIFT 4 #define VIA_MM_ALIGN_MASK ( (1 << VIA_MM_ALIGN_SHIFT) - 1) int via_agp_init(struct drm_device *dev, void *data, struct drm_file *file_priv) { drm_via_agp_t *agp = data; drm_via_private_t *dev_priv = (drm_via_private_t *) dev->dev_private; int ret; ret = drm_sman_set_range(&dev_priv->sman, VIA_MEM_AGP, 0, agp->size >> VIA_MM_ALIGN_SHIFT); if (ret) { DRM_ERROR("AGP memory manager initialisation error\n"); return ret; } dev_priv->agp_initialized = 1; dev_priv->agp_offset = agp->offset; DRM_DEBUG("offset = %u, size = %u\n", agp->offset, agp->size); return 0; } int via_fb_init(struct drm_device *dev, void *data, struct drm_file *file_priv) { drm_via_fb_t *fb = data; drm_via_private_t *dev_priv = (drm_via_private_t *) dev->dev_private; int ret; ret = drm_sman_set_range(&dev_priv->sman, VIA_MEM_VIDEO, 0, fb->size >> VIA_MM_ALIGN_SHIFT); if (ret) { DRM_ERROR("VRAM memory manager initialisation error\n"); return ret; } dev_priv->vram_initialized = 1; dev_priv->vram_offset = fb->offset; DRM_DEBUG("offset = %u, size = %u\n", fb->offset, fb->size); return 0; } int via_final_context(struct drm_device *dev, int context) { drm_via_private_t *dev_priv = (drm_via_private_t *) dev->dev_private; via_release_futex(dev_priv, context); #ifdef __linux__ /* Linux specific until context tracking code gets ported to BSD */ /* Last context, perform cleanup */ if (dev->ctx_count == 1 && dev->dev_private) { DRM_DEBUG("Last Context\n"); drm_irq_uninstall(dev); via_cleanup_futex(dev_priv); via_do_cleanup_map(dev); } #endif return 1; } void via_lastclose(struct drm_device *dev) { drm_via_private_t *dev_priv = (drm_via_private_t *) dev->dev_private; if (!dev_priv) return; drm_sman_cleanup(&dev_priv->sman); dev_priv->vram_initialized = 0; dev_priv->agp_initialized = 0; } int via_mem_alloc(struct drm_device *dev, void *data, struct drm_file *file_priv) { drm_via_mem_t *mem = data; int retval = 0; struct drm_memblock_item *item; drm_via_private_t *dev_priv = (drm_via_private_t *) dev->dev_private; unsigned long tmpSize; if (mem->type > VIA_MEM_AGP) { DRM_ERROR("Unknown memory type allocation\n"); return -EINVAL; } if (0 == ((mem->type == VIA_MEM_VIDEO) ? dev_priv->vram_initialized : dev_priv->agp_initialized)) { DRM_ERROR ("Attempt to allocate from uninitialized memory manager.\n"); return -EINVAL; } tmpSize = (mem->size + VIA_MM_ALIGN_MASK) >> VIA_MM_ALIGN_SHIFT; item = drm_sman_alloc(&dev_priv->sman, mem->type, tmpSize, 0, (unsigned long)file_priv); if (item) { mem->offset = ((mem->type == VIA_MEM_VIDEO) ? dev_priv->vram_offset : dev_priv->agp_offset) + (item->mm-> offset(item->mm, item->mm_info) << VIA_MM_ALIGN_SHIFT); mem->index = item->user_hash.key; } else { mem->offset = 0; mem->size = 0; mem->index = 0; DRM_DEBUG("Video memory allocation failed\n"); retval = -ENOMEM; } return retval; } int via_mem_free(struct drm_device *dev, void *data, struct drm_file *file_priv) { drm_via_private_t *dev_priv = dev->dev_private; drm_via_mem_t *mem = data; int ret; ret = drm_sman_free_key(&dev_priv->sman, mem->index); DRM_DEBUG("free = 0x%lx\n", mem->index); return ret; } void via_reclaim_buffers_locked(struct drm_device * dev, struct drm_file *file_priv) { drm_via_private_t *dev_priv = dev->dev_private; if (drm_sman_owner_clean(&dev_priv->sman, (unsigned long)file_priv)) return; if (dev->driver->dma_quiescent) dev->driver->dma_quiescent(dev); drm_sman_owner_cleanup(&dev_priv->sman, (unsigned long)file_priv); return; }