aboutsummaryrefslogtreecommitdiff
path: root/nx-X11/extras/drm/linux/drm_memory.h
diff options
context:
space:
mode:
authorMike Gabriel <mike.gabriel@das-netzwerkteam.de>2015-02-02 15:02:49 +0100
committerMike Gabriel <mike.gabriel@das-netzwerkteam.de>2015-02-02 15:02:49 +0100
commitb16b9e4656e7199c2aec74a4c8ebc7a875d3ba73 (patch)
tree4361edef0d42d5bf5ac984ef72b4fac35426eae7 /nx-X11/extras/drm/linux/drm_memory.h
parent0d5a83e986f39982c0924652a3662e60b1f23162 (diff)
downloadnx-libs-b16b9e4656e7199c2aec74a4c8ebc7a875d3ba73.tar.gz
nx-libs-b16b9e4656e7199c2aec74a4c8ebc7a875d3ba73.tar.bz2
nx-libs-b16b9e4656e7199c2aec74a4c8ebc7a875d3ba73.zip
massive reduction of unneeded files
Diffstat (limited to 'nx-X11/extras/drm/linux/drm_memory.h')
-rw-r--r--nx-X11/extras/drm/linux/drm_memory.h374
1 files changed, 0 insertions, 374 deletions
diff --git a/nx-X11/extras/drm/linux/drm_memory.h b/nx-X11/extras/drm/linux/drm_memory.h
deleted file mode 100644
index 9674cef0b..000000000
--- a/nx-X11/extras/drm/linux/drm_memory.h
+++ /dev/null
@@ -1,374 +0,0 @@
-/**
- * \file drm_memory.h
- * Memory management wrappers for DRM
- *
- * \author Rickard E. (Rik) Faith <faith@valinux.com>
- * \author Gareth Hughes <gareth@valinux.com>
- */
-
-/*
- * Created: Thu Feb 4 14:00:34 1999 by faith@valinux.com
- *
- * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas.
- * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
- * 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, 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 (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 NONINFRINGEMENT. IN NO EVENT SHALL
- * VA LINUX SYSTEMS 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 <linux/config.h>
-#include <linux/highmem.h>
-#include "drmP.h"
-
-/**
- * Cut down version of drm_memory_debug.h, which used to be called
- * drm_memory.h.
- */
-
-/* Need the 4-argument version of vmap(). */
-#if __OS_HAS_AGP && defined(VMAP_4_ARGS)
-
-#include <linux/vmalloc.h>
-
-#ifdef HAVE_PAGE_AGP
-#include <asm/agp.h>
-#else
-# ifdef __powerpc__
-# define PAGE_AGP __pgprot(_PAGE_KERNEL | _PAGE_NO_CACHE)
-# else
-# define PAGE_AGP PAGE_KERNEL
-# endif
-#endif
-
-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0)
-#ifndef pte_offset_kernel
-# define pte_offset_kernel(dir, address) pte_offset(dir, address)
-#endif
-#ifndef pte_pfn
-# define pte_pfn(pte) (pte_page(pte) - mem_map)
-#endif
-#ifndef pfn_to_page
-# define pfn_to_page(pfn) (mem_map + (pfn))
-#endif
-#endif
-
-/*
- * Find the drm_map that covers the range [offset, offset+size).
- */
-static inline drm_map_t *
-drm_lookup_map (unsigned long offset, unsigned long size, drm_device_t *dev)
-{
- struct list_head *list;
- drm_map_list_t *r_list;
- drm_map_t *map;
-
- list_for_each(list, &dev->maplist->head) {
- r_list = (drm_map_list_t *) list;
- map = r_list->map;
- if (!map)
- continue;
- if (map->offset <= offset && (offset + size) <= (map->offset + map->size))
- return map;
- }
- return NULL;
-}
-
-static inline void *
-agp_remap (unsigned long offset, unsigned long size, drm_device_t *dev)
-{
- unsigned long *phys_addr_map, i, num_pages = PAGE_ALIGN(size) / PAGE_SIZE;
- struct drm_agp_mem *agpmem;
- struct page **page_map;
- void *addr;
-
- size = PAGE_ALIGN(size);
-
-#ifdef __alpha__
- offset -= dev->hose->mem_space->start;
-#endif
-
- for (agpmem = dev->agp->memory; agpmem; agpmem = agpmem->next)
- if (agpmem->bound <= offset
- && (agpmem->bound + (agpmem->pages << PAGE_SHIFT)) >= (offset + size))
- break;
- if (!agpmem)
- return NULL;
-
- /*
- * OK, we're mapping AGP space on a chipset/platform on which memory accesses by
- * the CPU do not get remapped by the GART. We fix this by using the kernel's
- * page-table instead (that's probably faster anyhow...).
- */
- /* note: use vmalloc() because num_pages could be large... */
- page_map = vmalloc(num_pages * sizeof(struct page *));
- if (!page_map)
- return NULL;
-
- phys_addr_map = agpmem->memory->memory + (offset - agpmem->bound) / PAGE_SIZE;
- for (i = 0; i < num_pages; ++i)
- page_map[i] = pfn_to_page(phys_addr_map[i] >> PAGE_SHIFT);
- addr = vmap(page_map, num_pages, VM_IOREMAP, PAGE_AGP);
- vfree(page_map);
-
- return addr;
-}
-
-static inline unsigned long
-drm_follow_page (void *vaddr)
-{
- pgd_t *pgd = pgd_offset_k((unsigned long) vaddr);
- pmd_t *pmd = pmd_offset(pgd, (unsigned long) vaddr);
- pte_t *ptep = pte_offset_kernel(pmd, (unsigned long) vaddr);
- return pte_pfn(*ptep) << PAGE_SHIFT;
-}
-
-#else /* __OS_HAS_AGP */
-
-static inline drm_map_t *drm_lookup_map(unsigned long offset, unsigned long size, drm_device_t *dev)
-{
- return NULL;
-}
-
-static inline void *agp_remap(unsigned long offset, unsigned long size, drm_device_t *dev)
-{
- return NULL;
-}
-
-static inline unsigned long drm_follow_page (void *vaddr)
-{
- return 0;
-}
-
-#endif
-
-static inline void *drm_ioremap(unsigned long offset, unsigned long size, drm_device_t *dev)
-{
-#if defined(VMAP_4_ARGS)
- if (drm_core_has_AGP(dev) && dev->agp && dev->agp->cant_use_aperture) {
- drm_map_t *map = drm_lookup_map(offset, size, dev);
-
- if (map && map->type == _DRM_AGP)
- return agp_remap(offset, size, dev);
- }
-#endif
-
- return ioremap(offset, size);
-}
-
-static inline void *drm_ioremap_nocache(unsigned long offset, unsigned long size,
- drm_device_t *dev)
-{
-#if defined(VMAP_4_ARGS)
- if (drm_core_has_AGP(dev) && dev->agp && dev->agp->cant_use_aperture) {
- drm_map_t *map = drm_lookup_map(offset, size, dev);
-
- if (map && map->type == _DRM_AGP)
- return agp_remap(offset, size, dev);
- }
-#endif
-
- return ioremap_nocache(offset, size);
-}
-
-static inline void drm_ioremapfree(void *pt, unsigned long size, drm_device_t *dev)
-{
-#if defined(VMAP_4_ARGS)
- /*
- * This is a bit ugly. It would be much cleaner if the DRM API would use separate
- * routines for handling mappings in the AGP space. Hopefully this can be done in
- * a future revision of the interface...
- */
- if (drm_core_has_AGP(dev) && dev->agp && dev->agp->cant_use_aperture
- && ((unsigned long) pt >= VMALLOC_START && (unsigned long) pt < VMALLOC_END))
- {
- unsigned long offset;
- drm_map_t *map;
-
- offset = drm_follow_page(pt) | ((unsigned long) pt & ~PAGE_MASK);
- map = drm_lookup_map(offset, size, dev);
- if (map && map->type == _DRM_AGP) {
- vunmap(pt);
- return;
- }
- }
-#endif
-
- iounmap(pt);
-}
-
-
-#ifdef DEBUG_MEMORY
-#include "drm_memory_debug.h"
-#else
-
-/** No-op. */
-void DRM(mem_init)(void)
-{
-}
-
-/**
- * Called when "/proc/dri/%dev%/mem" is read.
- *
- * \param buf output buffer.
- * \param start start of output data.
- * \param offset requested start offset.
- * \param len requested number of bytes.
- * \param eof whether there is no more data to return.
- * \param data private data.
- * \return number of written bytes.
- *
- * No-op.
- */
-int DRM(mem_info)(char *buf, char **start, off_t offset,
- int len, int *eof, void *data)
-{
- return 0;
-}
-
-/** Wrapper around kmalloc() */
-void *DRM(calloc)(size_t nmemb, size_t size, int area)
-{
- void *addr;
-
- addr = kmalloc(size * nmemb, GFP_KERNEL);
- if (addr != NULL)
- memset((void *)addr, 0, size * nmemb);
-
- return addr;
-}
-
-/** Wrapper around kmalloc() and kfree() */
-void *DRM(realloc)(void *oldpt, size_t oldsize, size_t size, int area)
-{
- void *pt;
-
- if (!(pt = kmalloc(size, GFP_KERNEL))) return NULL;
- if (oldpt && oldsize) {
- memcpy(pt, oldpt, oldsize);
- kfree(oldpt);
- }
- return pt;
-}
-
-/**
- * Allocate pages.
- *
- * \param order size order.
- * \param area memory area. (Not used.)
- * \return page address on success, or zero on failure.
- *
- * Allocate and reserve free pages.
- */
-unsigned long DRM(alloc_pages)(int order, int area)
-{
- unsigned long address;
- unsigned long bytes = PAGE_SIZE << order;
- unsigned long addr;
- unsigned int sz;
-
- address = __get_free_pages(GFP_KERNEL, order);
- if (!address)
- return 0;
-
- /* Zero */
- memset((void *)address, 0, bytes);
-
- /* Reserve */
- for (addr = address, sz = bytes;
- sz > 0;
- addr += PAGE_SIZE, sz -= PAGE_SIZE) {
- SetPageReserved(virt_to_page(addr));
- }
-
- return address;
-}
-
-/**
- * Free pages.
- *
- * \param address address of the pages to free.
- * \param order size order.
- * \param area memory area. (Not used.)
- *
- * Unreserve and free pages allocated by alloc_pages().
- */
-void DRM(free_pages)(unsigned long address, int order, int area)
-{
- unsigned long bytes = PAGE_SIZE << order;
- unsigned long addr;
- unsigned int sz;
-
- if (!address)
- return;
-
- /* Unreserve */
- for (addr = address, sz = bytes;
- sz > 0;
- addr += PAGE_SIZE, sz -= PAGE_SIZE) {
- ClearPageReserved(virt_to_page(addr));
- }
-
- free_pages(address, order);
-}
-
-/** Wrapper around drm_ioremap() */
-void *DRM(ioremap)(unsigned long offset, unsigned long size, drm_device_t *dev)
-{
- return drm_ioremap(offset, size, dev);
-}
-
-/** Wrapper around drm_ioremap_nocache() */
-void *DRM(ioremap_nocache)(unsigned long offset, unsigned long size, drm_device_t *dev)
-{
- return drm_ioremap_nocache(offset, size, dev);
-}
-
-/** Wrapper around drm_iounmap() */
-void DRM(ioremapfree)(void *pt, unsigned long size, drm_device_t *dev)
-{
- drm_ioremapfree(pt, size, dev);
-}
-
-#if __OS_HAS_AGP
-/** Wrapper around agp_allocate_memory() */
-DRM_AGP_MEM *DRM(alloc_agp)(int pages, u32 type)
-{
- return DRM(agp_allocate_memory)(pages, type);
-}
-
-/** Wrapper around agp_free_memory() */
-int DRM(free_agp)(DRM_AGP_MEM *handle, int pages)
-{
- return DRM(agp_free_memory)(handle) ? 0 : -EINVAL;
-}
-
-/** Wrapper around agp_bind_memory() */
-int DRM(bind_agp)(DRM_AGP_MEM *handle, unsigned int start)
-{
- return DRM(agp_bind_memory)(handle, start);
-}
-
-/** Wrapper around agp_unbind_memory() */
-int DRM(unbind_agp)(DRM_AGP_MEM *handle)
-{
- return DRM(agp_unbind_memory)(handle);
-}
-#endif /* agp */
-#endif /* debug_memory */