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Diffstat (limited to 'drivers/char/drm/sis_mm.c')
-rw-r--r--drivers/char/drm/sis_mm.c348
1 files changed, 0 insertions, 348 deletions
diff --git a/drivers/char/drm/sis_mm.c b/drivers/char/drm/sis_mm.c
deleted file mode 100644
index 441bbdbf151..00000000000
--- a/drivers/char/drm/sis_mm.c
+++ /dev/null
@@ -1,348 +0,0 @@
-/**************************************************************************
- *
- * Copyright 2006 Tungsten Graphics, Inc., Bismarck, ND., USA.
- * 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, sub license, 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 NON-INFRINGEMENT. IN NO EVENT SHALL
- * THE COPYRIGHT HOLDERS, AUTHORS 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:
- * Thomas Hellström <thomas-at-tungstengraphics-dot-com>
- */
-
-#include "drmP.h"
-#include "sis_drm.h"
-#include "sis_drv.h"
-
-#include <video/sisfb.h>
-
-#define VIDEO_TYPE 0
-#define AGP_TYPE 1
-
-
-#if defined(CONFIG_FB_SIS)
-/* fb management via fb device */
-
-#define SIS_MM_ALIGN_SHIFT 0
-#define SIS_MM_ALIGN_MASK 0
-
-static void *sis_sman_mm_allocate(void *private, unsigned long size,
- unsigned alignment)
-{
- struct sis_memreq req;
-
- req.size = size;
- sis_malloc(&req);
- if (req.size == 0)
- return NULL;
- else
- return (void *)~req.offset;
-}
-
-static void sis_sman_mm_free(void *private, void *ref)
-{
- sis_free(~((unsigned long)ref));
-}
-
-static void sis_sman_mm_destroy(void *private)
-{
- ;
-}
-
-static unsigned long sis_sman_mm_offset(void *private, void *ref)
-{
- return ~((unsigned long)ref);
-}
-
-#else /* CONFIG_FB_SIS */
-
-#define SIS_MM_ALIGN_SHIFT 4
-#define SIS_MM_ALIGN_MASK ( (1 << SIS_MM_ALIGN_SHIFT) - 1)
-
-#endif /* CONFIG_FB_SIS */
-
-static int sis_fb_init(DRM_IOCTL_ARGS)
-{
- DRM_DEVICE;
- drm_sis_private_t *dev_priv = dev->dev_private;
- drm_sis_fb_t fb;
- int ret;
-
- DRM_COPY_FROM_USER_IOCTL(fb, (drm_sis_fb_t __user *) data, sizeof(fb));
-
- mutex_lock(&dev->struct_mutex);
-#if defined(CONFIG_FB_SIS)
- {
- struct drm_sman_mm sman_mm;
- sman_mm.private = (void *)0xFFFFFFFF;
- sman_mm.allocate = sis_sman_mm_allocate;
- sman_mm.free = sis_sman_mm_free;
- sman_mm.destroy = sis_sman_mm_destroy;
- sman_mm.offset = sis_sman_mm_offset;
- ret =
- drm_sman_set_manager(&dev_priv->sman, VIDEO_TYPE, &sman_mm);
- }
-#else
- ret = drm_sman_set_range(&dev_priv->sman, VIDEO_TYPE, 0,
- fb.size >> SIS_MM_ALIGN_SHIFT);
-#endif
-
- if (ret) {
- DRM_ERROR("VRAM memory manager initialisation error\n");
- mutex_unlock(&dev->struct_mutex);
- return ret;
- }
-
- dev_priv->vram_initialized = 1;
- dev_priv->vram_offset = fb.offset;
-
- mutex_unlock(&dev->struct_mutex);
- DRM_DEBUG("offset = %u, size = %u", fb.offset, fb.size);
-
- return 0;
-}
-
-static int sis_drm_alloc(struct drm_device *dev, struct drm_file * priv,
- unsigned long data, int pool)
-{
- drm_sis_private_t *dev_priv = dev->dev_private;
- drm_sis_mem_t __user *argp = (drm_sis_mem_t __user *) data;
- drm_sis_mem_t mem;
- int retval = 0;
- struct drm_memblock_item *item;
-
- DRM_COPY_FROM_USER_IOCTL(mem, argp, sizeof(mem));
-
- mutex_lock(&dev->struct_mutex);
-
- if (0 == ((pool == 0) ? dev_priv->vram_initialized :
- dev_priv->agp_initialized)) {
- DRM_ERROR
- ("Attempt to allocate from uninitialized memory manager.\n");
- return DRM_ERR(EINVAL);
- }
-
- mem.size = (mem.size + SIS_MM_ALIGN_MASK) >> SIS_MM_ALIGN_SHIFT;
- item = drm_sman_alloc(&dev_priv->sman, pool, mem.size, 0,
- (unsigned long)priv);
-
- mutex_unlock(&dev->struct_mutex);
- if (item) {
- mem.offset = ((pool == 0) ?
- dev_priv->vram_offset : dev_priv->agp_offset) +
- (item->mm->
- offset(item->mm, item->mm_info) << SIS_MM_ALIGN_SHIFT);
- mem.free = item->user_hash.key;
- mem.size = mem.size << SIS_MM_ALIGN_SHIFT;
- } else {
- mem.offset = 0;
- mem.size = 0;
- mem.free = 0;
- retval = DRM_ERR(ENOMEM);
- }
-
- DRM_COPY_TO_USER_IOCTL(argp, mem, sizeof(mem));
-
- DRM_DEBUG("alloc %d, size = %d, offset = %d\n", pool, mem.size,
- mem.offset);
-
- return retval;
-}
-
-static int sis_drm_free(DRM_IOCTL_ARGS)
-{
- DRM_DEVICE;
- drm_sis_private_t *dev_priv = dev->dev_private;
- drm_sis_mem_t mem;
- int ret;
-
- DRM_COPY_FROM_USER_IOCTL(mem, (drm_sis_mem_t __user *) data,
- sizeof(mem));
-
- mutex_lock(&dev->struct_mutex);
- ret = drm_sman_free_key(&dev_priv->sman, mem.free);
- mutex_unlock(&dev->struct_mutex);
- DRM_DEBUG("free = 0x%lx\n", mem.free);
-
- return ret;
-}
-
-static int sis_fb_alloc(DRM_IOCTL_ARGS)
-{
- DRM_DEVICE;
- return sis_drm_alloc(dev, priv, data, VIDEO_TYPE);
-}
-
-static int sis_ioctl_agp_init(DRM_IOCTL_ARGS)
-{
- DRM_DEVICE;
- drm_sis_private_t *dev_priv = dev->dev_private;
- drm_sis_agp_t agp;
- int ret;
- dev_priv = dev->dev_private;
-
- DRM_COPY_FROM_USER_IOCTL(agp, (drm_sis_agp_t __user *) data,
- sizeof(agp));
- mutex_lock(&dev->struct_mutex);
- ret = drm_sman_set_range(&dev_priv->sman, AGP_TYPE, 0,
- agp.size >> SIS_MM_ALIGN_SHIFT);
-
- if (ret) {
- DRM_ERROR("AGP memory manager initialisation error\n");
- mutex_unlock(&dev->struct_mutex);
- return ret;
- }
-
- dev_priv->agp_initialized = 1;
- dev_priv->agp_offset = agp.offset;
- mutex_unlock(&dev->struct_mutex);
-
- DRM_DEBUG("offset = %u, size = %u", agp.offset, agp.size);
- return 0;
-}
-
-static int sis_ioctl_agp_alloc(DRM_IOCTL_ARGS)
-{
- DRM_DEVICE;
-
- return sis_drm_alloc(dev, priv, data, AGP_TYPE);
-}
-
-static drm_local_map_t *sis_reg_init(struct drm_device *dev)
-{
- struct drm_map_list *entry;
- drm_local_map_t *map;
-
- list_for_each_entry(entry, &dev->maplist, head) {
- map = entry->map;
- if (!map)
- continue;
- if (map->type == _DRM_REGISTERS) {
- return map;
- }
- }
- return NULL;
-}
-
-int sis_idle(struct drm_device *dev)
-{
- drm_sis_private_t *dev_priv = dev->dev_private;
- uint32_t idle_reg;
- unsigned long end;
- int i;
-
- if (dev_priv->idle_fault)
- return 0;
-
- if (dev_priv->mmio == NULL) {
- dev_priv->mmio = sis_reg_init(dev);
- if (dev_priv->mmio == NULL) {
- DRM_ERROR("Could not find register map.\n");
- return 0;
- }
- }
-
- /*
- * Implement a device switch here if needed
- */
-
- if (dev_priv->chipset != SIS_CHIP_315)
- return 0;
-
- /*
- * Timeout after 3 seconds. We cannot use DRM_WAIT_ON here
- * because its polling frequency is too low.
- */
-
- end = jiffies + (DRM_HZ * 3);
-
- for (i=0; i<4; ++i) {
- do {
- idle_reg = SIS_READ(0x85cc);
- } while ( !time_after_eq(jiffies, end) &&
- ((idle_reg & 0x80000000) != 0x80000000));
- }
-
- if (time_after_eq(jiffies, end)) {
- DRM_ERROR("Graphics engine idle timeout. "
- "Disabling idle check\n");
- dev_priv->idle_fault = 1;
- }
-
- /*
- * The caller never sees an error code. It gets trapped
- * in libdrm.
- */
-
- return 0;
-}
-
-
-void sis_lastclose(struct drm_device *dev)
-{
- drm_sis_private_t *dev_priv = dev->dev_private;
-
- if (!dev_priv)
- return;
-
- mutex_lock(&dev->struct_mutex);
- drm_sman_cleanup(&dev_priv->sman);
- dev_priv->vram_initialized = 0;
- dev_priv->agp_initialized = 0;
- dev_priv->mmio = NULL;
- mutex_unlock(&dev->struct_mutex);
-}
-
-void sis_reclaim_buffers_locked(struct drm_device * dev, struct file *filp)
-{
- drm_sis_private_t *dev_priv = dev->dev_private;
- struct drm_file *priv = filp->private_data;
-
- mutex_lock(&dev->struct_mutex);
- if (drm_sman_owner_clean(&dev_priv->sman, (unsigned long)priv)) {
- mutex_unlock(&dev->struct_mutex);
- return;
- }
-
- if (dev->driver->dma_quiescent) {
- dev->driver->dma_quiescent(dev);
- }
-
- drm_sman_owner_cleanup(&dev_priv->sman, (unsigned long)priv);
- mutex_unlock(&dev->struct_mutex);
- return;
-}
-
-drm_ioctl_desc_t sis_ioctls[] = {
- [DRM_IOCTL_NR(DRM_SIS_FB_ALLOC)] = {sis_fb_alloc, DRM_AUTH},
- [DRM_IOCTL_NR(DRM_SIS_FB_FREE)] = {sis_drm_free, DRM_AUTH},
- [DRM_IOCTL_NR(DRM_SIS_AGP_INIT)] =
- {sis_ioctl_agp_init, DRM_AUTH | DRM_MASTER | DRM_ROOT_ONLY},
- [DRM_IOCTL_NR(DRM_SIS_AGP_ALLOC)] = {sis_ioctl_agp_alloc, DRM_AUTH},
- [DRM_IOCTL_NR(DRM_SIS_AGP_FREE)] = {sis_drm_free, DRM_AUTH},
- [DRM_IOCTL_NR(DRM_SIS_FB_INIT)] =
- {sis_fb_init, DRM_AUTH | DRM_MASTER | DRM_ROOT_ONLY}
-};
-
-int sis_max_ioctl = DRM_ARRAY_SIZE(sis_ioctls);
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-12-13 08:28:10 +0000