414 lines
11 KiB
C
414 lines
11 KiB
C
/* drm_memory.h -- Memory management wrappers for DRM -*- linux-c -*-
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* Created: Thu Feb 4 14:00:34 1999 by faith@valinux.com
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*
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* Copyright 1999 Precision Insight, Inc., Cedar Park, Texas.
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* Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
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* All Rights Reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice (including the next
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* paragraph) shall be included in all copies or substantial portions of the
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* Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
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* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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* OTHER DEALINGS IN THE SOFTWARE.
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*
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* Authors:
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* Rickard E. (Rik) Faith <faith@valinux.com>
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* Gareth Hughes <gareth@valinux.com>
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*
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* $FreeBSD: src/sys/dev/drm/drm_memory.h,v 1.8 2003/04/25 01:18:46 anholt Exp $
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*/
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#include "drmP.h"
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typedef struct drm_mem_stats {
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const char *name;
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int succeed_count;
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int free_count;
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int fail_count;
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unsigned long bytes_allocated;
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unsigned long bytes_freed;
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} drm_mem_stats_t;
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static DRM_SPINTYPE DRM(mem_lock);
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static unsigned long DRM(ram_available) = 0; /* In pages */
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static unsigned long DRM(ram_used) = 0;
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static drm_mem_stats_t DRM(mem_stats)[] = {
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[DRM_MEM_DMA] = { "dmabufs" },
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[DRM_MEM_SAREA] = { "sareas" },
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[DRM_MEM_DRIVER] = { "driver" },
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[DRM_MEM_MAGIC] = { "magic" },
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[DRM_MEM_IOCTLS] = { "ioctltab" },
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[DRM_MEM_MAPS] = { "maplist" },
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[DRM_MEM_BUFS] = { "buflist" },
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[DRM_MEM_SEGS] = { "seglist" },
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[DRM_MEM_PAGES] = { "pagelist" },
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[DRM_MEM_FILES] = { "files" },
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[DRM_MEM_QUEUES] = { "queues" },
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[DRM_MEM_CMDS] = { "commands" },
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[DRM_MEM_MAPPINGS] = { "mappings" },
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[DRM_MEM_BUFLISTS] = { "buflists" },
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[DRM_MEM_AGPLISTS] = { "agplist" },
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[DRM_MEM_SGLISTS] = { "sglist" },
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[DRM_MEM_TOTALAGP] = { "totalagp" },
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[DRM_MEM_BOUNDAGP] = { "boundagp" },
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[DRM_MEM_CTXBITMAP] = { "ctxbitmap"},
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[DRM_MEM_STUB] = { "stub" },
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{ NULL, 0, } /* Last entry must be null */
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};
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void DRM(mem_init)(void)
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{
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drm_mem_stats_t *mem;
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#ifdef __NetBSD__
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malloc_type_attach(DRM(M_DRM));
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#endif
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DRM_SPININIT(DRM(mem_lock), "drm memory");
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for (mem = DRM(mem_stats); mem->name; ++mem) {
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mem->succeed_count = 0;
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mem->free_count = 0;
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mem->fail_count = 0;
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mem->bytes_allocated = 0;
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mem->bytes_freed = 0;
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}
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DRM(ram_available) = 0; /* si.totalram */
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DRM(ram_used) = 0;
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}
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void DRM(mem_uninit)(void)
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{
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DRM_SPINUNINIT(DRM(mem_lock));
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}
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#ifdef __FreeBSD__
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/* drm_mem_info is called whenever a process reads /dev/drm/mem. */
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static int
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DRM(_mem_info)(drm_mem_stats_t *stats, struct sysctl_oid *oidp, void *arg1,
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int arg2, struct sysctl_req *req)
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{
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drm_mem_stats_t *pt;
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char buf[128];
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int error;
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DRM_SYSCTL_PRINT(" total counts "
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" | outstanding \n");
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DRM_SYSCTL_PRINT("type alloc freed fail bytes freed"
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" | allocs bytes\n\n");
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DRM_SYSCTL_PRINT("%-9.9s %5d %5d %4d %10lu |\n",
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"system", 0, 0, 0, DRM(ram_available));
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DRM_SYSCTL_PRINT("%-9.9s %5d %5d %4d %10lu |\n",
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"locked", 0, 0, 0, DRM(ram_used));
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DRM_SYSCTL_PRINT("\n");
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for (pt = stats; pt->name; pt++) {
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DRM_SYSCTL_PRINT("%-9.9s %5d %5d %4d %10lu %10lu | %6d %10ld\n",
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pt->name,
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pt->succeed_count,
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pt->free_count,
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pt->fail_count,
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pt->bytes_allocated,
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pt->bytes_freed,
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pt->succeed_count - pt->free_count,
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(long)pt->bytes_allocated
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- (long)pt->bytes_freed);
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}
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SYSCTL_OUT(req, "", 1);
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return 0;
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}
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int DRM(mem_info) DRM_SYSCTL_HANDLER_ARGS
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{
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int ret;
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drm_mem_stats_t *stats;
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stats = malloc(sizeof(DRM(mem_stats)), DRM(M_DRM), M_NOWAIT);
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if (stats == NULL)
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return ENOMEM;
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DRM_SPINLOCK(&DRM(mem_lock));
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bcopy(DRM(mem_stats), stats, sizeof(DRM(mem_stats)));
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DRM_SPINUNLOCK(&DRM(mem_lock));
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ret = DRM(_mem_info)(stats, oidp, arg1, arg2, req);
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free(stats, DRM(M_DRM));
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return ret;
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}
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#endif /* __FreeBSD__ */
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void *DRM(alloc)(size_t size, int area)
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{
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void *pt;
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if (!size) {
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DRM_MEM_ERROR(area, "Allocating 0 bytes\n");
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return NULL;
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}
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if (!(pt = malloc(size, DRM(M_DRM), M_NOWAIT))) {
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DRM_SPINLOCK(&DRM(mem_lock));
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++DRM(mem_stats)[area].fail_count;
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DRM_SPINUNLOCK(&DRM(mem_lock));
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return NULL;
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}
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DRM_SPINLOCK(&DRM(mem_lock));
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++DRM(mem_stats)[area].succeed_count;
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DRM(mem_stats)[area].bytes_allocated += size;
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DRM_SPINUNLOCK(&DRM(mem_lock));
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return pt;
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}
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void *DRM(realloc)(void *oldpt, size_t oldsize, size_t size, int area)
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{
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void *pt;
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if (!(pt = DRM(alloc)(size, area))) return NULL;
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if (oldpt && oldsize) {
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memcpy(pt, oldpt, oldsize);
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DRM(free)(oldpt, oldsize, area);
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}
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return pt;
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}
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void DRM(free)(void *pt, size_t size, int area)
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{
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int alloc_count;
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int free_count;
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if (pt == NULL)
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return;
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free(pt, DRM(M_DRM));
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DRM_SPINLOCK(&DRM(mem_lock));
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DRM(mem_stats)[area].bytes_freed += size;
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free_count = ++DRM(mem_stats)[area].free_count;
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alloc_count = DRM(mem_stats)[area].succeed_count;
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DRM_SPINUNLOCK(&DRM(mem_lock));
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if (free_count > alloc_count) {
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DRM_MEM_ERROR(area, "Excess frees: %d frees, %d allocs\n",
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free_count, alloc_count);
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}
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}
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void *DRM(ioremap)( drm_device_t *dev, drm_local_map_t *map )
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{
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void *pt;
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if (!map->size) {
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DRM_MEM_ERROR(DRM_MEM_MAPPINGS,
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"Mapping 0 bytes at 0x%08lx\n", map->offset);
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return NULL;
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}
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#ifdef __NetBSD__
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map->iot = dev->pa.pa_memt;
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#endif
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#ifdef __FreeBSD__
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if (!(pt = pmap_mapdev(map->offset, map->size))) {
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#elif defined(__NetBSD__)
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if (bus_space_map(map->iot, map->offset, map->size,
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BUS_SPACE_MAP_LINEAR, &map->ioh)) {
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#endif
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DRM_SPINLOCK(&DRM(mem_lock));
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++DRM(mem_stats)[DRM_MEM_MAPPINGS].fail_count;
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DRM_SPINUNLOCK(&DRM(mem_lock));
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return NULL;
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}
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#ifdef __NetBSD__
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pt = bus_space_vaddr(map->iot, map->ioh);
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#endif
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DRM_SPINLOCK(&DRM(mem_lock));
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++DRM(mem_stats)[DRM_MEM_MAPPINGS].succeed_count;
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DRM(mem_stats)[DRM_MEM_MAPPINGS].bytes_allocated += map->size;
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DRM_SPINUNLOCK(&DRM(mem_lock));
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return pt;
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}
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/* unused so far */
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#if 0
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void *DRM(ioremap_nocache)(unsigned long offset, unsigned long size)
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{
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void *pt;
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if (!size) {
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DRM_MEM_ERROR(DRM_MEM_MAPPINGS,
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"Mapping 0 bytes at 0x%08lx\n", offset);
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return NULL;
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}
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/* FIXME FOR BSD */
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if (!(pt = ioremap_nocache(offset, size))) {
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DRM_SPINLOCK(&DRM(mem_lock));
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++DRM(mem_stats)[DRM_MEM_MAPPINGS].fail_count;
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DRM_SPINUNLOCK(&DRM(mem_lock));
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return NULL;
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}
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DRM_SPINLOCK(&DRM(mem_lock));
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++DRM(mem_stats)[DRM_MEM_MAPPINGS].succeed_count;
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DRM(mem_stats)[DRM_MEM_MAPPINGS].bytes_allocated += size;
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DRM_SPINUNLOCK(&DRM(mem_lock));
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return pt;
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}
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#endif
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void DRM(ioremapfree)(drm_local_map_t *map)
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{
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int alloc_count;
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int free_count;
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if (map->handle == NULL)
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DRM_MEM_ERROR(DRM_MEM_MAPPINGS,
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"Attempt to free NULL pointer\n");
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else
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#ifdef __FreeBSD__
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pmap_unmapdev((vm_offset_t) map->handle, map->size);
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#elif defined(__NetBSD__)
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bus_space_unmap(map->iot, map->ioh, map->size);
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#endif
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DRM_SPINLOCK(&DRM(mem_lock));
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DRM(mem_stats)[DRM_MEM_MAPPINGS].bytes_freed += map->size;
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free_count = ++DRM(mem_stats)[DRM_MEM_MAPPINGS].free_count;
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alloc_count = DRM(mem_stats)[DRM_MEM_MAPPINGS].succeed_count;
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DRM_SPINUNLOCK(&DRM(mem_lock));
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if (free_count > alloc_count) {
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DRM_MEM_ERROR(DRM_MEM_MAPPINGS,
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"Excess frees: %d frees, %d allocs\n",
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free_count, alloc_count);
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}
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}
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#if __REALLY_HAVE_AGP
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agp_memory *DRM(alloc_agp)(int pages, u32 type)
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{
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agp_memory *handle;
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if (!pages) {
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DRM_MEM_ERROR(DRM_MEM_TOTALAGP, "Allocating 0 pages\n");
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return NULL;
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}
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if ((handle = DRM(agp_allocate_memory)(pages, type))) {
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DRM_SPINLOCK(&DRM(mem_lock));
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++DRM(mem_stats)[DRM_MEM_TOTALAGP].succeed_count;
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DRM(mem_stats)[DRM_MEM_TOTALAGP].bytes_allocated
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+= pages << PAGE_SHIFT;
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DRM_SPINUNLOCK(&DRM(mem_lock));
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return handle;
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}
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DRM_SPINLOCK(&DRM(mem_lock));
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++DRM(mem_stats)[DRM_MEM_TOTALAGP].fail_count;
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DRM_SPINUNLOCK(&DRM(mem_lock));
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return NULL;
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}
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int DRM(free_agp)(agp_memory *handle, int pages)
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{
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int alloc_count;
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int free_count;
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if (!handle) {
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DRM_MEM_ERROR(DRM_MEM_TOTALAGP,
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"Attempt to free NULL AGP handle\n");
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return DRM_ERR(EINVAL);
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}
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if (DRM(agp_free_memory)(handle)) {
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DRM_SPINLOCK(&DRM(mem_lock));
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free_count = ++DRM(mem_stats)[DRM_MEM_TOTALAGP].free_count;
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alloc_count = DRM(mem_stats)[DRM_MEM_TOTALAGP].succeed_count;
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DRM(mem_stats)[DRM_MEM_TOTALAGP].bytes_freed
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+= pages << PAGE_SHIFT;
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DRM_SPINUNLOCK(&DRM(mem_lock));
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if (free_count > alloc_count) {
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DRM_MEM_ERROR(DRM_MEM_TOTALAGP,
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"Excess frees: %d frees, %d allocs\n",
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free_count, alloc_count);
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}
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return 0;
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}
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return DRM_ERR(EINVAL);
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}
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int DRM(bind_agp)(agp_memory *handle, unsigned int start)
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{
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int retcode;
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device_t dev = DRM_AGP_FIND_DEVICE();
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struct agp_memory_info info;
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if (!dev)
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return EINVAL;
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if (!handle) {
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DRM_MEM_ERROR(DRM_MEM_BOUNDAGP,
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"Attempt to bind NULL AGP handle\n");
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return DRM_ERR(EINVAL);
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}
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if (!(retcode = DRM(agp_bind_memory)(handle, start))) {
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DRM_SPINLOCK(&DRM(mem_lock));
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++DRM(mem_stats)[DRM_MEM_BOUNDAGP].succeed_count;
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agp_memory_info(dev, handle, &info);
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DRM(mem_stats)[DRM_MEM_BOUNDAGP].bytes_allocated
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+= info.ami_size;
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DRM_SPINUNLOCK(&DRM(mem_lock));
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return DRM_ERR(0);
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}
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DRM_SPINLOCK(&DRM(mem_lock));
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++DRM(mem_stats)[DRM_MEM_BOUNDAGP].fail_count;
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DRM_SPINUNLOCK(&DRM(mem_lock));
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return DRM_ERR(retcode);
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}
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int DRM(unbind_agp)(agp_memory *handle)
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{
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int alloc_count;
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int free_count;
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int retcode = EINVAL;
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device_t dev = DRM_AGP_FIND_DEVICE();
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struct agp_memory_info info;
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if (!dev)
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return EINVAL;
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if (!handle) {
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DRM_MEM_ERROR(DRM_MEM_BOUNDAGP,
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"Attempt to unbind NULL AGP handle\n");
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return DRM_ERR(retcode);
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}
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agp_memory_info(dev, handle, &info);
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if ((retcode = DRM(agp_unbind_memory)(handle)))
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return DRM_ERR(retcode);
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DRM_SPINLOCK(&DRM(mem_lock));
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free_count = ++DRM(mem_stats)[DRM_MEM_BOUNDAGP].free_count;
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alloc_count = DRM(mem_stats)[DRM_MEM_BOUNDAGP].succeed_count;
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DRM(mem_stats)[DRM_MEM_BOUNDAGP].bytes_freed
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+= info.ami_size;
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DRM_SPINUNLOCK(&DRM(mem_lock));
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if (free_count > alloc_count) {
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DRM_MEM_ERROR(DRM_MEM_BOUNDAGP,
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"Excess frees: %d frees, %d allocs\n",
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free_count, alloc_count);
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}
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return DRM_ERR(retcode);
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}
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#endif
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