diff options
Diffstat (limited to 'linux-core/xgi_drv.c')
| -rw-r--r-- | linux-core/xgi_drv.c | 362 |
1 files changed, 362 insertions, 0 deletions
diff --git a/linux-core/xgi_drv.c b/linux-core/xgi_drv.c new file mode 100644 index 00000000..2c3384b0 --- /dev/null +++ b/linux-core/xgi_drv.c @@ -0,0 +1,362 @@ +/**************************************************************************** + * Copyright (C) 2003-2006 by XGI Technology, Taiwan. + * + * 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 on 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 NON-INFRINGEMENT. IN NO EVENT SHALL + * XGI 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 "drmP.h" +#include "drm.h" +#include "xgi_drv.h" +#include "xgi_regs.h" +#include "xgi_misc.h" +#include "xgi_cmdlist.h" + +#include "drm_pciids.h" + +static struct pci_device_id pciidlist[] = { + xgi_PCI_IDS +}; + +static int xgi_bootstrap(DRM_IOCTL_ARGS); + +static drm_ioctl_desc_t xgi_ioctls[] = { + [DRM_IOCTL_NR(DRM_XGI_BOOTSTRAP)] = {xgi_bootstrap, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY}, + + [DRM_IOCTL_NR(DRM_XGI_FB_ALLOC)] = {xgi_fb_alloc_ioctl, DRM_AUTH}, + [DRM_IOCTL_NR(DRM_XGI_FB_FREE)] = {xgi_fb_free_ioctl, DRM_AUTH}, + + [DRM_IOCTL_NR(DRM_XGI_PCIE_ALLOC)] = {xgi_pcie_alloc_ioctl, DRM_AUTH}, + [DRM_IOCTL_NR(DRM_XGI_PCIE_FREE)] = {xgi_pcie_free_ioctl, DRM_AUTH}, + + [DRM_IOCTL_NR(DRM_XGI_GE_RESET)] = {xgi_ge_reset_ioctl, DRM_AUTH}, + [DRM_IOCTL_NR(DRM_XGI_DUMP_REGISTER)] = {xgi_dump_register_ioctl, DRM_AUTH}, + [DRM_IOCTL_NR(DRM_XGI_DEBUG_INFO)] = {xgi_restore_registers_ioctl, DRM_AUTH}, + [DRM_IOCTL_NR(DRM_XGI_SUBMIT_CMDLIST)] = {xgi_submit_cmdlist_ioctl, DRM_AUTH}, + [DRM_IOCTL_NR(DRM_XGI_TEST_RWINKERNEL)] = {xgi_test_rwinkernel_ioctl, DRM_AUTH}, + [DRM_IOCTL_NR(DRM_XGI_STATE_CHANGE)] = {xgi_state_change_ioctl, DRM_AUTH|DRM_MASTER}, +}; + +static const int xgi_max_ioctl = DRM_ARRAY_SIZE(xgi_ioctls); + +static int probe(struct pci_dev *pdev, const struct pci_device_id *ent); +static int xgi_driver_load(struct drm_device *dev, unsigned long flags); +static int xgi_driver_unload(struct drm_device *dev); +static void xgi_driver_preclose(struct drm_device * dev, DRMFILE filp); +static void xgi_driver_lastclose(drm_device_t * dev); +static irqreturn_t xgi_kern_isr(DRM_IRQ_ARGS); + + +static struct drm_driver driver = { + .driver_features = + DRIVER_PCI_DMA | DRIVER_HAVE_DMA | DRIVER_HAVE_IRQ | + DRIVER_IRQ_SHARED | DRIVER_SG, + .dev_priv_size = sizeof(struct xgi_info), + .load = xgi_driver_load, + .unload = xgi_driver_unload, + .preclose = xgi_driver_preclose, + .lastclose = xgi_driver_lastclose, + .dma_quiescent = NULL, + .irq_preinstall = NULL, + .irq_postinstall = NULL, + .irq_uninstall = NULL, + .irq_handler = xgi_kern_isr, + .reclaim_buffers = drm_core_reclaim_buffers, + .get_map_ofs = drm_core_get_map_ofs, + .get_reg_ofs = drm_core_get_reg_ofs, + .ioctls = xgi_ioctls, + .dma_ioctl = NULL, + + .fops = { + .owner = THIS_MODULE, + .open = drm_open, + .release = drm_release, + .ioctl = drm_ioctl, + .mmap = drm_mmap, + .poll = drm_poll, + .fasync = drm_fasync, + }, + + .pci_driver = { + .name = DRIVER_NAME, + .id_table = pciidlist, + .probe = probe, + .remove = __devexit_p(drm_cleanup_pci), + }, + + .name = DRIVER_NAME, + .desc = DRIVER_DESC, + .date = DRIVER_DATE, + .major = DRIVER_MAJOR, + .minor = DRIVER_MINOR, + .patchlevel = DRIVER_PATCHLEVEL, + +}; + +static int probe(struct pci_dev *pdev, const struct pci_device_id *ent) +{ + return drm_get_dev(pdev, ent, &driver); +} + + +static int __init xgi_init(void) +{ + driver.num_ioctls = xgi_max_ioctl; + return drm_init(&driver, pciidlist); +} + +static void __exit xgi_exit(void) +{ + drm_exit(&driver); +} + +module_init(xgi_init); +module_exit(xgi_exit); + +MODULE_AUTHOR(DRIVER_AUTHOR); +MODULE_DESCRIPTION(DRIVER_DESC); +MODULE_LICENSE("GPL and additional rights"); + + +void xgi_kern_isr_bh(struct drm_device *dev); + +int xgi_bootstrap(DRM_IOCTL_ARGS) +{ + DRM_DEVICE; + struct xgi_info *info = dev->dev_private; + struct xgi_bootstrap bs; + struct drm_map_list *maplist; + int err; + + + DRM_COPY_FROM_USER_IOCTL(bs, (struct xgi_bootstrap __user *) data, + sizeof(bs)); + + if (info->mmio_map == NULL) { + err = drm_addmap(dev, info->mmio.base, info->mmio.size, + _DRM_REGISTERS, _DRM_KERNEL, + &info->mmio_map); + if (err) { + DRM_ERROR("Unable to map MMIO region: %d\n", err); + return err; + } + + xgi_enable_mmio(info); + } + + + info->fb.size = IN3CFB(info->mmio_map, 0x54) * 8 * 1024 * 1024; + + DRM_INFO("fb base: 0x%lx, size: 0x%x (probed)\n", + (unsigned long) info->fb.base, info->fb.size); + + + if ((info->fb.base == 0) || (info->fb.size == 0)) { + DRM_ERROR("framebuffer appears to be wrong: 0x%lx 0x%x\n", + (unsigned long) info->fb.base, info->fb.size); + return DRM_ERR(EINVAL); + } + + + /* Init the resource manager */ + if (!info->fb_heap.initialized) { + err = xgi_fb_heap_init(info); + if (err) { + DRM_ERROR("Unable to initialize FB heap.\n"); + return err; + } + } + + + info->pcie.size = bs.gart.size; + + /* Init the resource manager */ + if (!info->pcie_heap.initialized) { + err = xgi_pcie_heap_init(info); + if (err) { + DRM_ERROR("Unable to initialize GART heap.\n"); + return err; + } + + /* Alloc 1M bytes for cmdbuffer which is flush2D batch array */ + err = xgi_cmdlist_initialize(info, 0x100000); + if (err) { + DRM_ERROR("xgi_cmdlist_initialize() failed\n"); + return err; + } + } + + + if (info->pcie_map == NULL) { + err = drm_addmap(info->dev, 0, info->pcie.size, + _DRM_SCATTER_GATHER, _DRM_LOCKED, + & info->pcie_map); + if (err) { + DRM_ERROR("Could not add map for GART backing " + "store.\n"); + return err; + } + } + + + maplist = drm_find_matching_map(dev, info->pcie_map); + if (maplist == NULL) { + DRM_ERROR("Could not find GART backing store map.\n"); + return DRM_ERR(EINVAL); + } + + bs.gart = *info->pcie_map; + bs.gart.handle = (void *)(unsigned long) maplist->user_token; + DRM_COPY_TO_USER_IOCTL((struct xgi_bootstrap __user *) data, + bs, sizeof(bs)); + + return 0; +} + + +void xgi_driver_preclose(struct drm_device * dev, DRMFILE filp) +{ + struct xgi_info * info = dev->dev_private; + + xgi_pcie_free_all(info, filp); + xgi_fb_free_all(info, filp); +} + + +void xgi_driver_lastclose(drm_device_t * dev) +{ + struct xgi_info * info = dev->dev_private; + + if (info != NULL) { + /* The core DRM lastclose routine will destroy all of our + * mappings for us. NULL out the pointers here so that + * xgi_bootstrap can do the right thing. + */ + info->pcie_map = NULL; + info->mmio_map = NULL; + info->fb_map = NULL; + + xgi_cmdlist_cleanup(info); + + if (info->fb_heap.initialized) { + xgi_mem_heap_cleanup(&info->fb_heap); + } + + if (info->pcie_heap.initialized) { + xgi_mem_heap_cleanup(&info->pcie_heap); + xgi_pcie_lut_cleanup(info); + } + } +} + + +/* + * driver receives an interrupt if someone waiting, then hand it off. + */ +irqreturn_t xgi_kern_isr(DRM_IRQ_ARGS) +{ + struct drm_device *dev = (struct drm_device *) arg; +// struct xgi_info *info = dev->dev_private; + u32 need_to_run_bottom_half = 0; + + //DRM_INFO("xgi_kern_isr \n"); + + //xgi_dvi_irq_handler(info); + + if (need_to_run_bottom_half) { + drm_locked_tasklet(dev, xgi_kern_isr_bh); + } + + return IRQ_HANDLED; +} + +void xgi_kern_isr_bh(struct drm_device *dev) +{ + struct xgi_info *info = dev->dev_private; + + DRM_INFO("xgi_kern_isr_bh \n"); + + //xgi_dvi_irq_handler(info); +} + +int xgi_driver_load(struct drm_device *dev, unsigned long flags) +{ + struct xgi_info *info = drm_alloc(sizeof(*info), DRM_MEM_DRIVER); + + if (!info) + return DRM_ERR(ENOMEM); + + (void) memset(info, 0, sizeof(*info)); + dev->dev_private = info; + info->dev = dev; + + sema_init(&info->fb_sem, 1); + sema_init(&info->pcie_sem, 1); + + info->mmio.base = drm_get_resource_start(dev, 1); + info->mmio.size = drm_get_resource_len(dev, 1); + + DRM_INFO("mmio base: 0x%lx, size: 0x%x\n", + (unsigned long) info->mmio.base, info->mmio.size); + + + if ((info->mmio.base == 0) || (info->mmio.size == 0)) { + DRM_ERROR("mmio appears to be wrong: 0x%lx 0x%x\n", + (unsigned long) info->mmio.base, info->mmio.size); + return DRM_ERR(EINVAL); + } + + + info->fb.base = drm_get_resource_start(dev, 0); + info->fb.size = drm_get_resource_len(dev, 0); + + DRM_INFO("fb base: 0x%lx, size: 0x%x\n", + (unsigned long) info->fb.base, info->fb.size); + + + xgi_mem_block_cache = kmem_cache_create("xgi_mem_block", + sizeof(struct xgi_mem_block), + 0, + SLAB_HWCACHE_ALIGN, + NULL, NULL); + if (xgi_mem_block_cache == NULL) { + return DRM_ERR(ENOMEM); + } + + + return 0; +} + +int xgi_driver_unload(struct drm_device *dev) +{ + struct xgi_info * info = dev->dev_private; + + if (xgi_mem_block_cache) { + kmem_cache_destroy(xgi_mem_block_cache); + xgi_mem_block_cache = NULL; + } + + drm_free(info, sizeof(*info), DRM_MEM_DRIVER); + dev->dev_private = NULL; + + return 0; +} |