diff options
Diffstat (limited to 'bsd/drm_memory.h')
| -rw-r--r-- | bsd/drm_memory.h | 433 |
1 files changed, 433 insertions, 0 deletions
diff --git a/bsd/drm_memory.h b/bsd/drm_memory.h new file mode 100644 index 00000000..605b42ae --- /dev/null +++ b/bsd/drm_memory.h @@ -0,0 +1,433 @@ +/* drm_memory.h -- Memory management wrappers for DRM -*- linux-c -*- + * 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. + * + * Authors: + * Rickard E. (Rik) Faith <faith@valinux.com> + * Gareth Hughes <gareth@valinux.com> + */ + +#define __NO_VERSION__ +#include "drmP.h" +#include <vm/vm.h> +#include <vm/pmap.h> +#if __REALLY_HAVE_AGP +#include <sys/agpio.h> +#endif + +#define malloctype DRM(M_DRM) +/* The macros confliced in the MALLOC_DEFINE */ + +MALLOC_DEFINE(malloctype, "drm", "DRM Data Structures"); + +#undef malloctype + +typedef struct drm_mem_stats { + const char *name; + int succeed_count; + int free_count; + int fail_count; + unsigned long bytes_allocated; + unsigned long bytes_freed; +} drm_mem_stats_t; + +static DRM_OS_SPINTYPE DRM(mem_lock); +static unsigned long DRM(ram_available) = 0; /* In pages */ +static unsigned long DRM(ram_used) = 0; +static drm_mem_stats_t DRM(mem_stats)[] = { + [DRM_MEM_DMA] = { "dmabufs" }, + [DRM_MEM_SAREA] = { "sareas" }, + [DRM_MEM_DRIVER] = { "driver" }, + [DRM_MEM_MAGIC] = { "magic" }, + [DRM_MEM_IOCTLS] = { "ioctltab" }, + [DRM_MEM_MAPS] = { "maplist" }, + [DRM_MEM_VMAS] = { "vmalist" }, + [DRM_MEM_BUFS] = { "buflist" }, + [DRM_MEM_SEGS] = { "seglist" }, + [DRM_MEM_PAGES] = { "pagelist" }, + [DRM_MEM_FILES] = { "files" }, + [DRM_MEM_QUEUES] = { "queues" }, + [DRM_MEM_CMDS] = { "commands" }, + [DRM_MEM_MAPPINGS] = { "mappings" }, + [DRM_MEM_BUFLISTS] = { "buflists" }, + [DRM_MEM_AGPLISTS] = { "agplist" }, + [DRM_MEM_SGLISTS] = { "sglist" }, + [DRM_MEM_TOTALAGP] = { "totalagp" }, + [DRM_MEM_BOUNDAGP] = { "boundagp" }, + [DRM_MEM_CTXBITMAP] = { "ctxbitmap"}, + [DRM_MEM_STUB] = { "stub" }, + { NULL, 0, } /* Last entry must be null */ +}; + +void DRM(mem_init)(void) +{ + drm_mem_stats_t *mem; + + DRM_OS_SPININIT(DRM(mem_lock), "drm memory"); + + for (mem = DRM(mem_stats); mem->name; ++mem) { + mem->succeed_count = 0; + mem->free_count = 0; + mem->fail_count = 0; + mem->bytes_allocated = 0; + mem->bytes_freed = 0; + } + + DRM(ram_available) = 0; /* si.totalram */ + DRM(ram_used) = 0; +} + +/* drm_mem_info is called whenever a process reads /dev/drm/mem. */ + +static int DRM(_mem_info) DRM_SYSCTL_HANDLER_ARGS +{ + drm_mem_stats_t *pt; + char buf[128]; + int error; + + DRM_SYSCTL_PRINT(" total counts " + " | outstanding \n"); + DRM_SYSCTL_PRINT("type alloc freed fail bytes freed" + " | allocs bytes\n\n"); + DRM_SYSCTL_PRINT("%-9.9s %5d %5d %4d %10lu |\n", + "system", 0, 0, 0, DRM(ram_available)); + DRM_SYSCTL_PRINT("%-9.9s %5d %5d %4d %10lu |\n", + "locked", 0, 0, 0, DRM(ram_used)); + DRM_SYSCTL_PRINT("\n"); + for (pt = DRM(mem_stats); pt->name; pt++) { + DRM_SYSCTL_PRINT("%-9.9s %5d %5d %4d %10lu %10lu | %6d %10ld\n", + pt->name, + pt->succeed_count, + pt->free_count, + pt->fail_count, + pt->bytes_allocated, + pt->bytes_freed, + pt->succeed_count - pt->free_count, + (long)pt->bytes_allocated + - (long)pt->bytes_freed); + } + SYSCTL_OUT(req, "", 1); + + return 0; +} + +int DRM(mem_info) DRM_SYSCTL_HANDLER_ARGS +{ + int ret; + + DRM_OS_SPINLOCK(&DRM(mem_lock)); + ret = DRM(_mem_info)(oidp, arg1, arg2, req); + DRM_OS_SPINUNLOCK(&DRM(mem_lock)); + return ret; +} + +void *DRM(alloc)(size_t size, int area) +{ + void *pt; + + if (!size) { + DRM_MEM_ERROR(area, "Allocating 0 bytes\n"); + return NULL; + } + + if (!(pt = malloc(size, DRM(M_DRM), M_NOWAIT))) { + DRM_OS_SPINLOCK(&DRM(mem_lock)); + ++DRM(mem_stats)[area].fail_count; + DRM_OS_SPINUNLOCK(&DRM(mem_lock)); + return NULL; + } + DRM_OS_SPINLOCK(&DRM(mem_lock)); + ++DRM(mem_stats)[area].succeed_count; + DRM(mem_stats)[area].bytes_allocated += size; + DRM_OS_SPINUNLOCK(&DRM(mem_lock)); + return pt; +} + +void *DRM(realloc)(void *oldpt, size_t oldsize, size_t size, int area) +{ + void *pt; + + if (!(pt = DRM(alloc)(size, area))) return NULL; + if (oldpt && oldsize) { + memcpy(pt, oldpt, oldsize); + DRM(free)(oldpt, oldsize, area); + } + return pt; +} + +char *DRM(strdup)(const char *s, int area) +{ + char *pt; + int length = s ? strlen(s) : 0; + + if (!(pt = DRM(alloc)(length+1, area))) return NULL; + strcpy(pt, s); + return pt; +} + +void DRM(strfree)(char *s, int area) +{ + unsigned int size; + + if (!s) return; + + size = 1 + strlen(s); + DRM(free)((void *)s, size, area); +} + +void DRM(free)(void *pt, size_t size, int area) +{ + int alloc_count; + int free_count; + + if (!pt) DRM_MEM_ERROR(area, "Attempt to free NULL pointer\n"); + else free(pt, DRM(M_DRM)); + DRM_OS_SPINLOCK(&DRM(mem_lock)); + DRM(mem_stats)[area].bytes_freed += size; + free_count = ++DRM(mem_stats)[area].free_count; + alloc_count = DRM(mem_stats)[area].succeed_count; + DRM_OS_SPINUNLOCK(&DRM(mem_lock)); + if (free_count > alloc_count) { + DRM_MEM_ERROR(area, "Excess frees: %d frees, %d allocs\n", + free_count, alloc_count); + } +} + +unsigned long DRM(alloc_pages)(int order, int area) +{ + vm_offset_t address; + unsigned long bytes = PAGE_SIZE << order; + + + address = (vm_offset_t) contigmalloc(bytes, DRM(M_DRM), M_WAITOK, 0, ~0, 1, 0); + if (!address) { + DRM_OS_SPINLOCK(&DRM(mem_lock)); + ++DRM(mem_stats)[area].fail_count; + DRM_OS_SPINUNLOCK(&DRM(mem_lock)); + return 0; + } + DRM_OS_SPINLOCK(&DRM(mem_lock)); + ++DRM(mem_stats)[area].succeed_count; + DRM(mem_stats)[area].bytes_allocated += bytes; + DRM(ram_used) += bytes; + DRM_OS_SPINUNLOCK(&DRM(mem_lock)); + + + /* Zero outside the lock */ + memset((void *)address, 0, bytes); + + + return address; +} + +void DRM(free_pages)(unsigned long address, int order, int area) +{ + unsigned long bytes = PAGE_SIZE << order; + int alloc_count; + int free_count; + + if (!address) { + DRM_MEM_ERROR(area, "Attempt to free address 0\n"); + } else { + contigfree((void *) address, bytes, DRM(M_DRM)); + } + + DRM_OS_SPINLOCK(&DRM(mem_lock)); + free_count = ++DRM(mem_stats)[area].free_count; + alloc_count = DRM(mem_stats)[area].succeed_count; + DRM(mem_stats)[area].bytes_freed += bytes; + DRM(ram_used) -= bytes; + DRM_OS_SPINUNLOCK(&DRM(mem_lock)); + if (free_count > alloc_count) { + DRM_MEM_ERROR(area, + "Excess frees: %d frees, %d allocs\n", + free_count, alloc_count); + } +} + +void *DRM(ioremap)(unsigned long offset, unsigned long size) +{ + void *pt; + + if (!size) { + DRM_MEM_ERROR(DRM_MEM_MAPPINGS, + "Mapping 0 bytes at 0x%08lx\n", offset); + return NULL; + } + + if (!(pt = pmap_mapdev(offset, size))) { + DRM_OS_SPINLOCK(&DRM(mem_lock)); + ++DRM(mem_stats)[DRM_MEM_MAPPINGS].fail_count; + DRM_OS_SPINUNLOCK(&DRM(mem_lock)); + return NULL; + } + DRM_OS_SPINLOCK(&DRM(mem_lock)); + ++DRM(mem_stats)[DRM_MEM_MAPPINGS].succeed_count; + DRM(mem_stats)[DRM_MEM_MAPPINGS].bytes_allocated += size; + DRM_OS_SPINUNLOCK(&DRM(mem_lock)); + return pt; +} + +void DRM(ioremapfree)(void *pt, unsigned long size) +{ + int alloc_count; + int free_count; + + if (!pt) + DRM_MEM_ERROR(DRM_MEM_MAPPINGS, + "Attempt to free NULL pointer\n"); + else + pmap_unmapdev((vm_offset_t) pt, size); + + DRM_OS_SPINLOCK(&DRM(mem_lock)); + DRM(mem_stats)[DRM_MEM_MAPPINGS].bytes_freed += size; + free_count = ++DRM(mem_stats)[DRM_MEM_MAPPINGS].free_count; + alloc_count = DRM(mem_stats)[DRM_MEM_MAPPINGS].succeed_count; + DRM_OS_SPINUNLOCK(&DRM(mem_lock)); + if (free_count > alloc_count) { + DRM_MEM_ERROR(DRM_MEM_MAPPINGS, + "Excess frees: %d frees, %d allocs\n", + free_count, alloc_count); + } +} + +#if __REALLY_HAVE_AGP +agp_memory *DRM(alloc_agp)(int pages, u32 type) +{ + agp_memory *handle; + + if (!pages) { + DRM_MEM_ERROR(DRM_MEM_TOTALAGP, "Allocating 0 pages\n"); + return NULL; + } + + if ((handle = DRM(agp_allocate_memory)(pages, type))) { + DRM_OS_SPINLOCK(&DRM(mem_lock)); + ++DRM(mem_stats)[DRM_MEM_TOTALAGP].succeed_count; + DRM(mem_stats)[DRM_MEM_TOTALAGP].bytes_allocated + += pages << PAGE_SHIFT; + DRM_OS_SPINUNLOCK(&DRM(mem_lock)); + return handle; + } + DRM_OS_SPINLOCK(&DRM(mem_lock)); + ++DRM(mem_stats)[DRM_MEM_TOTALAGP].fail_count; + DRM_OS_SPINUNLOCK(&DRM(mem_lock)); + return NULL; +} + +int DRM(free_agp)(agp_memory *handle, int pages) +{ + int alloc_count; + int free_count; + + if (!handle) { + DRM_MEM_ERROR(DRM_MEM_TOTALAGP, + "Attempt to free NULL AGP handle\n"); + DRM_OS_RETURN(EINVAL); + } + + if (DRM(agp_free_memory)(handle)) { + DRM_OS_SPINLOCK(&DRM(mem_lock)); + free_count = ++DRM(mem_stats)[DRM_MEM_TOTALAGP].free_count; + alloc_count = DRM(mem_stats)[DRM_MEM_TOTALAGP].succeed_count; + DRM(mem_stats)[DRM_MEM_TOTALAGP].bytes_freed + += pages << PAGE_SHIFT; + DRM_OS_SPINUNLOCK(&DRM(mem_lock)); + if (free_count > alloc_count) { + DRM_MEM_ERROR(DRM_MEM_TOTALAGP, + "Excess frees: %d frees, %d allocs\n", + free_count, alloc_count); + } + return 0; + } + DRM_OS_RETURN(EINVAL); +} + +int DRM(bind_agp)(agp_memory *handle, unsigned int start) +{ + int retcode; + device_t dev = agp_find_device(); + struct agp_memory_info info; + + if (!dev) + return EINVAL; + + if (!handle) { + DRM_MEM_ERROR(DRM_MEM_BOUNDAGP, + "Attempt to bind NULL AGP handle\n"); + DRM_OS_RETURN(EINVAL); + } + + if (!(retcode = DRM(agp_bind_memory)(handle, start))) { + DRM_OS_SPINLOCK(&DRM(mem_lock)); + ++DRM(mem_stats)[DRM_MEM_BOUNDAGP].succeed_count; + agp_memory_info(dev, handle, &info); + DRM(mem_stats)[DRM_MEM_BOUNDAGP].bytes_allocated + += info.ami_size; + DRM_OS_SPINUNLOCK(&DRM(mem_lock)); + DRM_OS_RETURN(0); + } + DRM_OS_SPINLOCK(&DRM(mem_lock)); + ++DRM(mem_stats)[DRM_MEM_BOUNDAGP].fail_count; + DRM_OS_SPINUNLOCK(&DRM(mem_lock)); + DRM_OS_RETURN(retcode); +} + +int DRM(unbind_agp)(agp_memory *handle) +{ + int alloc_count; + int free_count; + int retcode = EINVAL; + device_t dev = agp_find_device(); + struct agp_memory_info info; + + if (!dev) + return EINVAL; + + if (!handle) { + DRM_MEM_ERROR(DRM_MEM_BOUNDAGP, + "Attempt to unbind NULL AGP handle\n"); + DRM_OS_RETURN(retcode); + } + + agp_memory_info(dev, handle, &info); + + if ((retcode = DRM(agp_unbind_memory)(handle))) + DRM_OS_RETURN(retcode); + + DRM_OS_SPINLOCK(&DRM(mem_lock)); + free_count = ++DRM(mem_stats)[DRM_MEM_BOUNDAGP].free_count; + alloc_count = DRM(mem_stats)[DRM_MEM_BOUNDAGP].succeed_count; + DRM(mem_stats)[DRM_MEM_BOUNDAGP].bytes_freed + += info.ami_size; + DRM_OS_SPINUNLOCK(&DRM(mem_lock)); + if (free_count > alloc_count) { + DRM_MEM_ERROR(DRM_MEM_BOUNDAGP, + "Excess frees: %d frees, %d allocs\n", + free_count, alloc_count); + } + DRM_OS_RETURN(retcode); +} +#endif |