fffd429f13
locking, and the apparently unnecessary locking for -stable has been removed. This may fix issues with missed interrupts since April, which manifested themselves as slowdowns or hangs in radeon, in particular. Many cleanups also took place. In the shared code, there are improvements to r128 driver stability.
422 lines
11 KiB
C
422 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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* $FreeBSD$
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*/
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#include "drmP.h"
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#define DRM_SYSCTL_PRINT(fmt, arg...) \
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do { \
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snprintf(buf, sizeof(buf), fmt, ##arg); \
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error = SYSCTL_OUT(req, buf, strlen(buf)); \
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if (error) \
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return error; \
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} while (0)
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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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