592ffb2175
Revert r338177, r338176, r338175, r338174, r338172 After long consultations with re@, core members and mmacy, revert these changes. Followup changes will be made to mark them as deprecated and prent a message about where to find the up-to-date driver. Followup commits will be made to make this clear in the installer. Followup commits to reduce POLA in ways we're still exploring. It's anticipated that after the freeze, this will be removed in 13-current (with the residual of the drm2 code copied to sys/arm/dev/drm2 for the TEGRA port's use w/o the intel or radeon drivers). Due to the impending freeze, there was no formal core vote for this. I've been talking to different core members all day, as well as Matt Macey and Glen Barber. Nobody is completely happy, all are grudgingly going along with this. Work is in progress to mitigate the negative effects as much as possible. Requested by: re@ (gjb, rgrimes)
390 lines
9.6 KiB
C
390 lines
9.6 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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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#if defined(__linux__) && defined(CONFIG_FB_SIS)
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#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
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#include <video/sisfb.h>
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#else
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#include <linux/sisfb.h>
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#endif
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#endif
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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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#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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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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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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static int sis_fb_init(struct drm_device *dev, void *data, struct drm_file *file_priv)
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{
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return 0;
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}
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static int sis_fb_alloc(struct drm_device *dev, void *data, struct drm_file *file_priv)
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{
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drm_sis_mem_t *fb = data;
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struct sis_memreq req;
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int retval = 0;
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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 = -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_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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static int sis_fb_free(struct drm_device *dev, void *data, struct drm_file *file_priv)
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{
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drm_sis_mem_t fb;
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int retval = 0;
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if (!fb->free)
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return -EINVAL;
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if (!del_alloc_set(fb->context, VIDEO_TYPE, fb->free))
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retval = -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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static int sis_fb_init(struct drm_device *dev, void *data, struct drm_file *file_priv)
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{
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drm_sis_private_t *dev_priv = dev->dev_private;
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drm_sis_fb_t *fb = data;
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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 -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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static int sis_fb_alloc(struct drm_device *dev, void *data, struct drm_file *file_priv)
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{
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drm_sis_private_t *dev_priv = dev->dev_private;
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drm_sis_mem_t *fb = data;
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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 -EINVAL;
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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 = -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_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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static int sis_fb_free(struct drm_device *dev, void *data, struct drm_file *file_priv)
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{
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drm_sis_private_t *dev_priv = dev->dev_private;
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drm_sis_mem_t *fb = data;
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if (dev_priv == NULL || dev_priv->FBHeap == NULL)
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return -EINVAL;
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if (!mmBlockInHeap(dev_priv->FBHeap, (PMemBlock) fb->free))
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return -EINVAL;
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if (!del_alloc_set(fb->context, VIDEO_TYPE, fb->free))
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return -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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static int sis_ioctl_agp_init(struct drm_device *dev, void *data, struct drm_file *file_priv)
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{
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drm_sis_private_t *dev_priv = dev->dev_private;
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drm_sis_agp_t *agp = data;
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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 -EINVAL;
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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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static int sis_ioctl_agp_alloc(struct drm_device *dev, void *data, struct drm_file *file_priv)
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{
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drm_sis_private_t *dev_priv = dev->dev_private;
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drm_sis_mem_t *agp = data;
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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 -EINVAL;
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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_DEBUG("alloc agp, size = %d, offset = %d\n", agp->size,
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agp->offset);
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return retval;
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}
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static int sis_ioctl_agp_free(struct drm_device *dev, void *data, struct drm_file *file_priv)
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{
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drm_sis_private_t *dev_priv = dev->dev_private;
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drm_sis_mem_t *agp = data;
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if (dev_priv == NULL || dev_priv->AGPHeap == NULL)
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return -EINVAL;
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if (!mmBlockInHeap(dev_priv->AGPHeap, (PMemBlock) agp->free))
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return -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 -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(struct drm_device *dev, 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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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(struct drm_device *dev, 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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ITEM_TYPE 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%lx\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%lx\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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drm_ioctl_desc_t sis_ioctls[] = {
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DRM_IOCTL_DEF(DRM_SIS_FB_ALLOC, sis_fb_alloc, DRM_AUTH),
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DRM_IOCTL_DEF(DRM_SIS_FB_FREE, sis_fb_free, DRM_AUTH),
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DRM_IOCTL_DEF(DRM_SIS_AGP_INIT, sis_ioctl_agp_init, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
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DRM_IOCTL_DEF(DRM_SIS_AGP_ALLOC, sis_ioctl_agp_alloc, DRM_AUTH),
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DRM_IOCTL_DEF(DRM_SIS_AGP_FREE, sis_ioctl_agp_free, DRM_AUTH),
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DRM_IOCTL_DEF(DRM_SIS_FB_INIT, sis_fb_init, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY)
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};
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int sis_max_ioctl = DRM_ARRAY_SIZE(sis_ioctls);
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