1d0d7f3ee4
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.
405 lines
9.3 KiB
C
405 lines
9.3 KiB
C
/* sis_mm.c -- Private header for Direct Rendering Manager -*- linux-c -*-
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* Created: Mon Jan 4 10:05:05 1999 by sclin@sis.com.tw
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*
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* Copyright 2000 Silicon Integrated Systems Corp, Inc., HsinChu, Taiwan.
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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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* PRECISION INSIGHT 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 OTHER
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* DEALINGS IN THE SOFTWARE.
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*
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* Authors:
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* Sung-Ching Lin <sclin@sis.com.tw>
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*
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* $FreeBSD$
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*/
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#include "dev/drm/sis.h"
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#include "dev/drm/drmP.h"
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#include "dev/drm/sis_drm.h"
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#include "dev/drm/sis_drv.h"
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#include "dev/drm/sis_ds.h"
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#if defined(__linux__) && defined(CONFIG_FB_SIS)
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#include <linux/sisfb.h>
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#endif
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#define MAX_CONTEXT 100
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#define VIDEO_TYPE 0
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#define AGP_TYPE 1
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typedef struct {
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int used;
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int context;
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set_t *sets[2]; /* 0 for video, 1 for AGP */
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} sis_context_t;
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static sis_context_t global_ppriv[MAX_CONTEXT];
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static int add_alloc_set(int context, int type, unsigned int val)
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{
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int i, retval = 0;
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for (i = 0; i < MAX_CONTEXT; i++) {
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if (global_ppriv[i].used && global_ppriv[i].context == context)
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{
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retval = setAdd(global_ppriv[i].sets[type], val);
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break;
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}
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}
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return retval;
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}
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static int del_alloc_set(int context, int type, unsigned int val)
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{
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int i, retval = 0;
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for (i = 0; i < MAX_CONTEXT; i++) {
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if (global_ppriv[i].used && global_ppriv[i].context == context)
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{
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retval = setDel(global_ppriv[i].sets[type], val);
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break;
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}
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}
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return retval;
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}
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/* fb management via fb device */
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#if defined(__linux__) && defined(CONFIG_FB_SIS)
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int sis_fb_init( DRM_IOCTL_ARGS )
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{
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return 0;
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}
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int sis_fb_alloc( DRM_IOCTL_ARGS )
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{
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drm_sis_mem_t fb;
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struct sis_memreq req;
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int retval = 0;
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DRM_COPY_FROM_USER_IOCTL(fb, (drm_sis_mem_t *)data, sizeof(fb));
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req.size = fb.size;
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sis_malloc(&req);
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if (req.offset) {
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/* TODO */
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fb.offset = req.offset;
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fb.free = req.offset;
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if (!add_alloc_set(fb.context, VIDEO_TYPE, fb.free)) {
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DRM_DEBUG("adding to allocation set fails\n");
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sis_free(req.offset);
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retval = DRM_ERR(EINVAL);
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}
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} else {
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fb.offset = 0;
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fb.size = 0;
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fb.free = 0;
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}
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DRM_COPY_TO_USER_IOCTL((drm_sis_mem_t *)data, fb, sizeof(fb));
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DRM_DEBUG("alloc fb, size = %d, offset = %ld\n", fb.size, req.offset);
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return retval;
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}
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int sis_fb_free( DRM_IOCTL_ARGS )
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{
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drm_sis_mem_t fb;
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int retval = 0;
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DRM_COPY_FROM_USER_IOCTL(fb, (drm_sis_mem_t *)data, sizeof(fb));
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if (!fb.free)
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return DRM_ERR(EINVAL);
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if (!del_alloc_set(fb.context, VIDEO_TYPE, fb.free))
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retval = DRM_ERR(EINVAL);
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sis_free(fb.free);
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DRM_DEBUG("free fb, offset = 0x%lx\n", fb.free);
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return retval;
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}
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#else
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/* Called by the X Server to initialize the FB heap. Allocations will fail
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* unless this is called. Offset is the beginning of the heap from the
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* framebuffer offset (MaxXFBMem in XFree86).
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*
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* Memory layout according to Thomas Winischofer:
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* |------------------|DDDDDDDDDDDDDDDDDDDDDDDDDDDDD|HHHH|CCCCCCCCCCC|
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*
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* X driver/sisfb HW- Command-
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* framebuffer memory DRI heap Cursor queue
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*/
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int sis_fb_init( DRM_IOCTL_ARGS )
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{
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DRM_DEVICE;
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drm_sis_private_t *dev_priv = dev->dev_private;
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drm_sis_fb_t fb;
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DRM_COPY_FROM_USER_IOCTL(fb, (drm_sis_fb_t *)data, sizeof(fb));
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if (dev_priv == NULL) {
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dev->dev_private = DRM(calloc)(1, sizeof(drm_sis_private_t),
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DRM_MEM_DRIVER);
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dev_priv = dev->dev_private;
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if (dev_priv == NULL)
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return ENOMEM;
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}
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if (dev_priv->FBHeap != NULL)
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return DRM_ERR(EINVAL);
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dev_priv->FBHeap = mmInit(fb.offset, fb.size);
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DRM_DEBUG("offset = %u, size = %u", fb.offset, fb.size);
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return 0;
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}
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int sis_fb_alloc( DRM_IOCTL_ARGS )
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{
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DRM_DEVICE;
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drm_sis_private_t *dev_priv = dev->dev_private;
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drm_sis_mem_t fb;
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PMemBlock block;
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int retval = 0;
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if (dev_priv == NULL || dev_priv->FBHeap == NULL)
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return DRM_ERR(EINVAL);
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DRM_COPY_FROM_USER_IOCTL(fb, (drm_sis_mem_t *)data, sizeof(fb));
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block = mmAllocMem(dev_priv->FBHeap, fb.size, 0, 0);
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if (block) {
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/* TODO */
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fb.offset = block->ofs;
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fb.free = (unsigned long)block;
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if (!add_alloc_set(fb.context, VIDEO_TYPE, fb.free)) {
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DRM_DEBUG("adding to allocation set fails\n");
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mmFreeMem((PMemBlock)fb.free);
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retval = DRM_ERR(EINVAL);
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}
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} else {
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fb.offset = 0;
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fb.size = 0;
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fb.free = 0;
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}
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DRM_COPY_TO_USER_IOCTL((drm_sis_mem_t *)data, fb, sizeof(fb));
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DRM_DEBUG("alloc fb, size = %d, offset = %d\n", fb.size, fb.offset);
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return retval;
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}
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int sis_fb_free( DRM_IOCTL_ARGS )
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{
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DRM_DEVICE;
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drm_sis_private_t *dev_priv = dev->dev_private;
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drm_sis_mem_t fb;
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if (dev_priv == NULL || dev_priv->FBHeap == NULL)
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return DRM_ERR(EINVAL);
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DRM_COPY_FROM_USER_IOCTL(fb, (drm_sis_mem_t *)data, sizeof(fb));
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if (!mmBlockInHeap(dev_priv->FBHeap, (PMemBlock)fb.free))
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return DRM_ERR(EINVAL);
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if (!del_alloc_set(fb.context, VIDEO_TYPE, fb.free))
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return DRM_ERR(EINVAL);
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mmFreeMem((PMemBlock)fb.free);
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DRM_DEBUG("free fb, free = 0x%lx\n", fb.free);
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return 0;
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}
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#endif
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/* agp memory management */
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int sis_ioctl_agp_init( DRM_IOCTL_ARGS )
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{
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DRM_DEVICE;
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drm_sis_private_t *dev_priv = dev->dev_private;
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drm_sis_agp_t agp;
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if (dev_priv == NULL) {
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dev->dev_private = DRM(calloc)(1, sizeof(drm_sis_private_t),
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DRM_MEM_DRIVER);
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dev_priv = dev->dev_private;
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if (dev_priv == NULL)
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return ENOMEM;
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}
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if (dev_priv->AGPHeap != NULL)
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return DRM_ERR(EINVAL);
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DRM_COPY_FROM_USER_IOCTL(agp, (drm_sis_agp_t *)data, sizeof(agp));
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dev_priv->AGPHeap = mmInit(agp.offset, agp.size);
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DRM_DEBUG("offset = %u, size = %u", agp.offset, agp.size);
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return 0;
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}
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int sis_ioctl_agp_alloc( DRM_IOCTL_ARGS )
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{
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DRM_DEVICE;
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drm_sis_private_t *dev_priv = dev->dev_private;
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drm_sis_mem_t agp;
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PMemBlock block;
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int retval = 0;
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if (dev_priv == NULL || dev_priv->AGPHeap == NULL)
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return DRM_ERR(EINVAL);
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DRM_COPY_FROM_USER_IOCTL(agp, (drm_sis_mem_t *)data, sizeof(agp));
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block = mmAllocMem(dev_priv->AGPHeap, agp.size, 0, 0);
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if (block) {
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/* TODO */
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agp.offset = block->ofs;
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agp.free = (unsigned long)block;
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if (!add_alloc_set(agp.context, AGP_TYPE, agp.free)) {
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DRM_DEBUG("adding to allocation set fails\n");
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mmFreeMem((PMemBlock)agp.free);
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retval = -1;
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}
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} else {
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agp.offset = 0;
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agp.size = 0;
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agp.free = 0;
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}
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DRM_COPY_TO_USER_IOCTL((drm_sis_mem_t *)data, agp, sizeof(agp));
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DRM_DEBUG("alloc agp, size = %d, offset = %d\n", agp.size, agp.offset);
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return retval;
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}
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int sis_ioctl_agp_free( DRM_IOCTL_ARGS )
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{
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DRM_DEVICE;
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drm_sis_private_t *dev_priv = dev->dev_private;
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drm_sis_mem_t agp;
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if (dev_priv == NULL || dev_priv->AGPHeap == NULL)
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return DRM_ERR(EINVAL);
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DRM_COPY_FROM_USER_IOCTL(agp, (drm_sis_mem_t *)data, sizeof(agp));
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if (!mmBlockInHeap(dev_priv->AGPHeap, (PMemBlock)agp.free))
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return DRM_ERR(EINVAL);
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mmFreeMem((PMemBlock)agp.free);
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if (!del_alloc_set(agp.context, AGP_TYPE, agp.free))
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return DRM_ERR(EINVAL);
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DRM_DEBUG("free agp, free = 0x%lx\n", agp.free);
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return 0;
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}
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int sis_init_context(int context)
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{
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int i;
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for (i = 0; i < MAX_CONTEXT ; i++) {
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if (global_ppriv[i].used &&
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(global_ppriv[i].context == context))
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break;
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}
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if (i >= MAX_CONTEXT) {
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for (i = 0; i < MAX_CONTEXT ; i++) {
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if (!global_ppriv[i].used) {
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global_ppriv[i].context = context;
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global_ppriv[i].used = 1;
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global_ppriv[i].sets[0] = setInit();
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global_ppriv[i].sets[1] = setInit();
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DRM_DEBUG("init allocation set, socket=%d, "
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"context = %d\n", i, context);
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break;
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}
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}
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if ((i >= MAX_CONTEXT) || (global_ppriv[i].sets[0] == NULL) ||
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(global_ppriv[i].sets[1] == NULL))
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{
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return 0;
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}
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}
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return 1;
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}
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int sis_final_context(int context)
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{
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int i;
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for (i=0; i<MAX_CONTEXT; i++) {
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if (global_ppriv[i].used &&
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(global_ppriv[i].context == context))
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break;
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}
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if (i < MAX_CONTEXT) {
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set_t *set;
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unsigned int item;
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int retval;
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DRM_DEBUG("find socket %d, context = %d\n", i, context);
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/* Video Memory */
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set = global_ppriv[i].sets[0];
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retval = setFirst(set, &item);
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while (retval) {
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DRM_DEBUG("free video memory 0x%x\n", item);
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#if defined(__linux__) && defined(CONFIG_FB_SIS)
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sis_free(item);
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#else
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mmFreeMem((PMemBlock)item);
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#endif
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retval = setNext(set, &item);
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}
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setDestroy(set);
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/* AGP Memory */
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set = global_ppriv[i].sets[1];
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retval = setFirst(set, &item);
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while (retval) {
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DRM_DEBUG("free agp memory 0x%x\n", item);
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mmFreeMem((PMemBlock)item);
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retval = setNext(set, &item);
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}
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setDestroy(set);
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global_ppriv[i].used = 0;
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}
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return 1;
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}
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