diff options
Diffstat (limited to 'drivers/gpu/drm/sis')
| -rw-r--r-- | drivers/gpu/drm/sis/Makefile | 10 | ||||
| -rw-r--r-- | drivers/gpu/drm/sis/sis_drv.c | 143 | ||||
| -rw-r--r-- | drivers/gpu/drm/sis/sis_drv.h | 80 | ||||
| -rw-r--r-- | drivers/gpu/drm/sis/sis_mm.c | 363 |
4 files changed, 596 insertions, 0 deletions
diff --git a/drivers/gpu/drm/sis/Makefile b/drivers/gpu/drm/sis/Makefile new file mode 100644 index 000000000..02b0253fd --- /dev/null +++ b/drivers/gpu/drm/sis/Makefile @@ -0,0 +1,10 @@ +# SPDX-License-Identifier: GPL-2.0-only +# +# Makefile for the drm device driver. This driver provides support for the +# Direct Rendering Infrastructure (DRI) in XFree86 4.1.0 and higher. + +sis-y := sis_drv.o sis_mm.o + +obj-$(CONFIG_DRM_SIS) += sis.o + + diff --git a/drivers/gpu/drm/sis/sis_drv.c b/drivers/gpu/drm/sis/sis_drv.c new file mode 100644 index 000000000..6173020a9 --- /dev/null +++ b/drivers/gpu/drm/sis/sis_drv.c @@ -0,0 +1,143 @@ +/* sis.c -- sis driver -*- linux-c -*- + * + * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas. + * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice (including the next + * paragraph) shall be included in all copies or substantial portions of the + * Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * PRECISION INSIGHT 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. + * + */ + +#include <linux/module.h> +#include <linux/pci.h> + +#include <drm/drm_drv.h> +#include <drm/drm_file.h> +#include <drm/drm_pciids.h> +#include <drm/sis_drm.h> + +#include "sis_drv.h" + +static struct pci_device_id pciidlist[] = { + sisdrv_PCI_IDS +}; + +static int sis_driver_load(struct drm_device *dev, unsigned long chipset) +{ + struct pci_dev *pdev = to_pci_dev(dev->dev); + drm_sis_private_t *dev_priv; + + pci_set_master(pdev); + + dev_priv = kzalloc(sizeof(drm_sis_private_t), GFP_KERNEL); + if (dev_priv == NULL) + return -ENOMEM; + + idr_init_base(&dev_priv->object_idr, 1); + dev->dev_private = (void *)dev_priv; + dev_priv->chipset = chipset; + + return 0; +} + +static void sis_driver_unload(struct drm_device *dev) +{ + drm_sis_private_t *dev_priv = dev->dev_private; + + idr_destroy(&dev_priv->object_idr); + + kfree(dev_priv); +} + +static const struct file_operations sis_driver_fops = { + .owner = THIS_MODULE, + .open = drm_open, + .release = drm_release, + .unlocked_ioctl = drm_ioctl, + .mmap = drm_legacy_mmap, + .poll = drm_poll, + .compat_ioctl = drm_compat_ioctl, + .llseek = noop_llseek, +}; + +static int sis_driver_open(struct drm_device *dev, struct drm_file *file) +{ + struct sis_file_private *file_priv; + + DRM_DEBUG_DRIVER("\n"); + file_priv = kmalloc(sizeof(*file_priv), GFP_KERNEL); + if (!file_priv) + return -ENOMEM; + + file->driver_priv = file_priv; + + INIT_LIST_HEAD(&file_priv->obj_list); + + return 0; +} + +static void sis_driver_postclose(struct drm_device *dev, struct drm_file *file) +{ + struct sis_file_private *file_priv = file->driver_priv; + + kfree(file_priv); +} + +static struct drm_driver driver = { + .driver_features = DRIVER_USE_AGP | DRIVER_LEGACY, + .load = sis_driver_load, + .unload = sis_driver_unload, + .open = sis_driver_open, + .preclose = sis_reclaim_buffers_locked, + .postclose = sis_driver_postclose, + .dma_quiescent = sis_idle, + .lastclose = sis_lastclose, + .ioctls = sis_ioctls, + .fops = &sis_driver_fops, + .name = DRIVER_NAME, + .desc = DRIVER_DESC, + .date = DRIVER_DATE, + .major = DRIVER_MAJOR, + .minor = DRIVER_MINOR, + .patchlevel = DRIVER_PATCHLEVEL, +}; + +static struct pci_driver sis_pci_driver = { + .name = DRIVER_NAME, + .id_table = pciidlist, +}; + +static int __init sis_init(void) +{ + driver.num_ioctls = sis_max_ioctl; + return drm_legacy_pci_init(&driver, &sis_pci_driver); +} + +static void __exit sis_exit(void) +{ + drm_legacy_pci_exit(&driver, &sis_pci_driver); +} + +module_init(sis_init); +module_exit(sis_exit); + +MODULE_AUTHOR(DRIVER_AUTHOR); +MODULE_DESCRIPTION(DRIVER_DESC); +MODULE_LICENSE("GPL and additional rights"); diff --git a/drivers/gpu/drm/sis/sis_drv.h b/drivers/gpu/drm/sis/sis_drv.h new file mode 100644 index 000000000..81339443b --- /dev/null +++ b/drivers/gpu/drm/sis/sis_drv.h @@ -0,0 +1,80 @@ +/* sis_drv.h -- Private header for sis driver -*- linux-c -*- */ +/* + * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas. + * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California. + * All rights reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice (including the next + * paragraph) shall be included in all copies or substantial portions of the + * Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * PRECISION INSIGHT 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. + * + */ + +#ifndef _SIS_DRV_H_ +#define _SIS_DRV_H_ + +#include <drm/drm_ioctl.h> +#include <drm/drm_legacy.h> +#include <drm/drm_mm.h> + +/* General customization: + */ + +#define DRIVER_AUTHOR "SIS, Tungsten Graphics" +#define DRIVER_NAME "sis" +#define DRIVER_DESC "SIS 300/630/540 and XGI V3XE/V5/V8" +#define DRIVER_DATE "20070626" +#define DRIVER_MAJOR 1 +#define DRIVER_MINOR 3 +#define DRIVER_PATCHLEVEL 0 + +enum sis_family { + SIS_OTHER = 0, + SIS_CHIP_315 = 1, +}; + +#define SIS_READ(reg) readl(((void __iomem *)dev_priv->mmio->handle) + (reg)) +#define SIS_WRITE(reg, val) writel(val, ((void __iomem *)dev_priv->mmio->handle) + (reg)) + +typedef struct drm_sis_private { + drm_local_map_t *mmio; + unsigned int idle_fault; + unsigned int chipset; + int vram_initialized; + int agp_initialized; + unsigned long vram_offset; + unsigned long agp_offset; + struct drm_mm vram_mm; + struct drm_mm agp_mm; + /** Mapping of userspace keys to mm objects */ + struct idr object_idr; +} drm_sis_private_t; + +struct sis_file_private { + struct list_head obj_list; +}; + +extern int sis_idle(struct drm_device *dev); +extern void sis_reclaim_buffers_locked(struct drm_device *dev, + struct drm_file *file_priv); +extern void sis_lastclose(struct drm_device *dev); + +extern const struct drm_ioctl_desc sis_ioctls[]; +extern int sis_max_ioctl; + +#endif diff --git a/drivers/gpu/drm/sis/sis_mm.c b/drivers/gpu/drm/sis/sis_mm.c new file mode 100644 index 000000000..e51d4289a --- /dev/null +++ b/drivers/gpu/drm/sis/sis_mm.c @@ -0,0 +1,363 @@ +/************************************************************************** + * + * 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 <video/sisfb.h> + +#include <drm/drm_device.h> +#include <drm/drm_file.h> +#include <drm/sis_drm.h> + +#include "sis_drv.h" + + +#define VIDEO_TYPE 0 +#define AGP_TYPE 1 + + +struct sis_memblock { + struct drm_mm_node mm_node; + struct sis_memreq req; + struct list_head owner_list; +}; + +#if defined(CONFIG_FB_SIS) || defined(CONFIG_FB_SIS_MODULE) +/* fb management via fb device */ + +#define SIS_MM_ALIGN_SHIFT 0 +#define SIS_MM_ALIGN_MASK 0 + +#else /* CONFIG_FB_SIS[_MODULE] */ + +#define SIS_MM_ALIGN_SHIFT 4 +#define SIS_MM_ALIGN_MASK ((1 << SIS_MM_ALIGN_SHIFT) - 1) + +#endif /* CONFIG_FB_SIS[_MODULE] */ + +static int sis_fb_init(struct drm_device *dev, void *data, struct drm_file *file_priv) +{ + drm_sis_private_t *dev_priv = dev->dev_private; + drm_sis_fb_t *fb = data; + + mutex_lock(&dev->struct_mutex); + /* Unconditionally init the drm_mm, even though we don't use it when the + * fb sis driver is available - make cleanup easier. */ + drm_mm_init(&dev_priv->vram_mm, 0, fb->size >> SIS_MM_ALIGN_SHIFT); + + dev_priv->vram_initialized = 1; + dev_priv->vram_offset = fb->offset; + + mutex_unlock(&dev->struct_mutex); + DRM_DEBUG("offset = %lu, size = %lu\n", fb->offset, fb->size); + + return 0; +} + +static int sis_drm_alloc(struct drm_device *dev, struct drm_file *file, + void *data, int pool) +{ + drm_sis_private_t *dev_priv = dev->dev_private; + drm_sis_mem_t *mem = data; + int retval = 0, user_key; + struct sis_memblock *item; + struct sis_file_private *file_priv = file->driver_priv; + unsigned long offset; + + 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"); + mutex_unlock(&dev->struct_mutex); + return -EINVAL; + } + + item = kzalloc(sizeof(*item), GFP_KERNEL); + if (!item) { + retval = -ENOMEM; + goto fail_alloc; + } + + mem->size = (mem->size + SIS_MM_ALIGN_MASK) >> SIS_MM_ALIGN_SHIFT; + if (pool == AGP_TYPE) { + retval = drm_mm_insert_node(&dev_priv->agp_mm, + &item->mm_node, + mem->size); + offset = item->mm_node.start; + } else { +#if defined(CONFIG_FB_SIS) || defined(CONFIG_FB_SIS_MODULE) + item->req.size = mem->size; + sis_malloc(&item->req); + if (item->req.size == 0) + retval = -ENOMEM; + offset = item->req.offset; +#else + retval = drm_mm_insert_node(&dev_priv->vram_mm, + &item->mm_node, + mem->size); + offset = item->mm_node.start; +#endif + } + if (retval) + goto fail_alloc; + + retval = idr_alloc(&dev_priv->object_idr, item, 1, 0, GFP_KERNEL); + if (retval < 0) + goto fail_idr; + user_key = retval; + + list_add(&item->owner_list, &file_priv->obj_list); + mutex_unlock(&dev->struct_mutex); + + mem->offset = ((pool == 0) ? + dev_priv->vram_offset : dev_priv->agp_offset) + + (offset << SIS_MM_ALIGN_SHIFT); + mem->free = user_key; + mem->size = mem->size << SIS_MM_ALIGN_SHIFT; + + return 0; + +fail_idr: + drm_mm_remove_node(&item->mm_node); +fail_alloc: + kfree(item); + mutex_unlock(&dev->struct_mutex); + + mem->offset = 0; + mem->size = 0; + mem->free = 0; + + DRM_DEBUG("alloc %d, size = %ld, offset = %ld\n", pool, mem->size, + mem->offset); + + return retval; +} + +static int sis_drm_free(struct drm_device *dev, void *data, struct drm_file *file_priv) +{ + drm_sis_private_t *dev_priv = dev->dev_private; + drm_sis_mem_t *mem = data; + struct sis_memblock *obj; + + mutex_lock(&dev->struct_mutex); + obj = idr_find(&dev_priv->object_idr, mem->free); + if (obj == NULL) { + mutex_unlock(&dev->struct_mutex); + return -EINVAL; + } + + idr_remove(&dev_priv->object_idr, mem->free); + list_del(&obj->owner_list); + if (drm_mm_node_allocated(&obj->mm_node)) + drm_mm_remove_node(&obj->mm_node); +#if defined(CONFIG_FB_SIS) || defined(CONFIG_FB_SIS_MODULE) + else + sis_free(obj->req.offset); +#endif + kfree(obj); + mutex_unlock(&dev->struct_mutex); + DRM_DEBUG("free = 0x%lx\n", mem->free); + + return 0; +} + +static int sis_fb_alloc(struct drm_device *dev, void *data, + struct drm_file *file_priv) +{ + return sis_drm_alloc(dev, file_priv, data, VIDEO_TYPE); +} + +static int sis_ioctl_agp_init(struct drm_device *dev, void *data, + struct drm_file *file_priv) +{ + drm_sis_private_t *dev_priv = dev->dev_private; + drm_sis_agp_t *agp = data; + dev_priv = dev->dev_private; + + mutex_lock(&dev->struct_mutex); + drm_mm_init(&dev_priv->agp_mm, 0, agp->size >> SIS_MM_ALIGN_SHIFT); + + dev_priv->agp_initialized = 1; + dev_priv->agp_offset = agp->offset; + mutex_unlock(&dev->struct_mutex); + + DRM_DEBUG("offset = %lu, size = %lu\n", agp->offset, agp->size); + return 0; +} + +static int sis_ioctl_agp_alloc(struct drm_device *dev, void *data, + struct drm_file *file_priv) +{ + + return sis_drm_alloc(dev, file_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 + (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); + if (dev_priv->vram_initialized) { + drm_mm_takedown(&dev_priv->vram_mm); + dev_priv->vram_initialized = 0; + } + if (dev_priv->agp_initialized) { + drm_mm_takedown(&dev_priv->agp_mm); + dev_priv->agp_initialized = 0; + } + dev_priv->mmio = NULL; + mutex_unlock(&dev->struct_mutex); +} + +void sis_reclaim_buffers_locked(struct drm_device *dev, + struct drm_file *file) +{ + struct sis_file_private *file_priv = file->driver_priv; + struct sis_memblock *entry, *next; + + if (!(dev->master && file->master->lock.hw_lock)) + return; + + drm_legacy_idlelock_take(&file->master->lock); + + mutex_lock(&dev->struct_mutex); + if (list_empty(&file_priv->obj_list)) { + mutex_unlock(&dev->struct_mutex); + drm_legacy_idlelock_release(&file->master->lock); + + return; + } + + sis_idle(dev); + + + list_for_each_entry_safe(entry, next, &file_priv->obj_list, + owner_list) { + list_del(&entry->owner_list); + if (drm_mm_node_allocated(&entry->mm_node)) + drm_mm_remove_node(&entry->mm_node); +#if defined(CONFIG_FB_SIS) || defined(CONFIG_FB_SIS_MODULE) + else + sis_free(entry->req.offset); +#endif + kfree(entry); + } + mutex_unlock(&dev->struct_mutex); + + drm_legacy_idlelock_release(&file->master->lock); + + return; +} + +const struct drm_ioctl_desc sis_ioctls[] = { + DRM_IOCTL_DEF_DRV(SIS_FB_ALLOC, sis_fb_alloc, DRM_AUTH), + DRM_IOCTL_DEF_DRV(SIS_FB_FREE, sis_drm_free, DRM_AUTH), + DRM_IOCTL_DEF_DRV(SIS_AGP_INIT, sis_ioctl_agp_init, DRM_AUTH | DRM_MASTER | DRM_ROOT_ONLY), + DRM_IOCTL_DEF_DRV(SIS_AGP_ALLOC, sis_ioctl_agp_alloc, DRM_AUTH), + DRM_IOCTL_DEF_DRV(SIS_AGP_FREE, sis_drm_free, DRM_AUTH), + DRM_IOCTL_DEF_DRV(SIS_FB_INIT, sis_fb_init, DRM_AUTH | DRM_MASTER | DRM_ROOT_ONLY), +}; + +int sis_max_ioctl = ARRAY_SIZE(sis_ioctls); |