renesas/drm.git - libdrm, cloned from git://anongit.freedesktop.org/mesa/drm

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author	Ben Skeggs <skeggsb@gmail.com>	2007-11-05 02:32:46 +1100
committer	Ben Skeggs <skeggsb@gmail.com>	2007-11-05 02:32:46 +1100
commit	dfa449cf9a7ce5de9cbd571f604ae7c3c778dabd (patch)
tree	3ad5d02b1eb430a8167ff37990ff4b8bdc282001 /shared-core/mach64_drm.h
parent	173a5be28f4ed59e27d7a719f62bc275959b5b70 (diff)

nouveau: vram is bar1

Diffstat (limited to 'shared-core/mach64_drm.h')

0 files changed, 0 insertions, 0 deletions

/* $Id$ * ffb_drv.c: Creator/Creator3D direct rendering driver. * * Copyright (C) 2000 David S. Miller (davem@redhat.com) */ #include <linux/config.h> #include "ffb.h" #include "drmP.h" #include "ffb_drv.h" #include <linux/sched.h> #include <linux/smp_lock.h> #include <asm/shmparam.h> #include <asm/oplib.h> #include <asm/upa.h> #define DRIVER_AUTHOR "David S. Miller" #define DRIVER_NAME "ffb" #define DRIVER_DESC "Creator/Creator3D" #define DRIVER_DATE "20000517" #define DRIVER_MAJOR 0 #define DRIVER_MINOR 0 #define DRIVER_PATCHLEVEL 1 typedef struct _ffb_position_t { int node; int root; } ffb_position_t; static ffb_position_t *ffb_position; static void get_ffb_type(ffb_dev_priv_t *ffb_priv, int instance) { volatile unsigned char *strap_bits; unsigned char val; strap_bits = (volatile unsigned char *) (ffb_priv->card_phys_base + 0x00200000UL); /* Don't ask, you have to read the value twice for whatever * reason to get correct contents. */ val = upa_readb(strap_bits); val = upa_readb(strap_bits); switch (val & 0x78) { case (0x0 << 5) | (0x0 << 3): ffb_priv->ffb_type = ffb1_prototype; printk("ffb%d: Detected FFB1 pre-FCS prototype\n", instance); break; case (0x0 << 5) | (0x1 << 3): ffb_priv->ffb_type = ffb1_standard; printk("ffb%d: Detected FFB1\n", instance); break; case (0x0 << 5) | (0x3 << 3): ffb_priv->ffb_type = ffb1_speedsort; printk("ffb%d: Detected FFB1-SpeedSort\n", instance); break; case (0x1 << 5) | (0x0 << 3): ffb_priv->ffb_type = ffb2_prototype; printk("ffb%d: Detected FFB2/vertical pre-FCS prototype\n", instance); break; case (0x1 << 5) | (0x1 << 3): ffb_priv->ffb_type = ffb2_vertical; printk("ffb%d: Detected FFB2/vertical\n", instance); break; case (0x1 << 5) | (0x2 << 3): ffb_priv->ffb_type = ffb2_vertical_plus; printk("ffb%d: Detected FFB2+/vertical\n", instance); break; case (0x2 << 5) | (0x0 << 3): ffb_priv->ffb_type = ffb2_horizontal; printk("ffb%d: Detected FFB2/horizontal\n", instance); break; case (0x2 << 5) | (0x2 << 3): ffb_priv->ffb_type = ffb2_horizontal; printk("ffb%d: Detected FFB2+/horizontal\n", instance); break; default: ffb_priv->ffb_type = ffb2_vertical; printk("ffb%d: Unknown boardID[%08x], assuming FFB2\n", instance, val); break; }; } static void ffb_apply_upa_parent_ranges(int parent, struct linux_prom64_registers *regs) { struct linux_prom64_ranges ranges[PROMREG_MAX]; char name[128]; int len, i; prom_getproperty(parent, "name", name, sizeof(name)); if (strcmp(name, "upa") != 0) return; len = prom_getproperty(parent, "ranges", (void *) ranges, sizeof(ranges)); if (len <= 0) return; len /= sizeof(struct linux_prom64_ranges); for (i = 0; i < len; i++) { struct linux_prom64_ranges *rng = &ranges[i]; u64 phys_addr = regs->phys_addr; if (phys_addr >= rng->ot_child_base && phys_addr < (rng->ot_child_base + rng->or_size)) { regs->phys_addr -= rng->ot_child_base; regs->phys_addr += rng->ot_parent_base; return; } } return; } static int ffb_init_one(drm_device_t *dev, int prom_node, int parent_node, int instance) { struct linux_prom64_registers regs[2*PROMREG_MAX]; ffb_dev_priv_t *ffb_priv = (ffb_dev_priv_t *)dev->dev_private; int i; ffb_priv->prom_node = prom_node; if (prom_getproperty(ffb_priv->prom_node, "reg", (void *)regs, sizeof(regs)) <= 0) { return -EINVAL; } ffb_apply_upa_parent_ranges(parent_node, &regs[0]); ffb_priv->card_phys_base = regs[0].phys_addr; ffb_priv->regs = (ffb_fbcPtr) (regs[0].phys_addr + 0x00600000UL); get_ffb_type(ffb_priv, instance); for (i = 0; i < FFB_MAX_CTXS; i++) ffb_priv->hw_state[i] = NULL; return 0; } static int __init ffb_count_siblings(int root) { int node, child, count = 0; child = prom_getchild(root); for (node = prom_searchsiblings(child, "SUNW,ffb"); node; node = prom_searchsiblings(prom_getsibling(node), "SUNW,ffb")) count++; return count; } static int __init ffb_scan_siblings(int root, int instance) { int node, child; child = prom_getchild(root); for (node = prom_searchsiblings(child, "SUNW,ffb"); node; node = prom_searchsiblings(prom_getsibling(node), "SUNW,ffb")) { ffb_position[instance].node = node; ffb_position[instance].root = root; instance++; } return instance; } static drm_map_t *ffb_find_map(struct file *filp, unsigned long off) { drm_file_t *priv = filp->private_data; drm_device_t *dev; drm_map_list_t *r_list; struct list_head *list; drm_map_t *map; if (!priv || (dev = priv->dev) == NULL) return NULL; list_for_each(list, &dev->maplist->head) { unsigned long uoff; r_list = (drm_map_list_t *)list; map = r_list->map; if (!map) continue; uoff = (map->offset & 0xffffffff); if (uoff == off) return map; } return NULL; } unsigned long ffb_get_unmapped_area(struct file *filp, unsigned long hint, unsigned long len, unsigned long pgoff, unsigned long flags) { drm_map_t *map = ffb_find_map(filp, pgoff << PAGE_SHIFT); unsigned long addr = -ENOMEM; if (!map) return get_unmapped_area(NULL, hint, len, pgoff, flags); if (map->type == _DRM_FRAME_BUFFER || map->type == _DRM_REGISTERS) { #ifdef HAVE_ARCH_FB_UNMAPPED_AREA addr = get_fb_unmapped_area(filp, hint, len, pgoff, flags); #else addr = get_unmapped_area(NULL, hint, len, pgoff, flags); #endif } else if (map->type == _DRM_SHM && SHMLBA > PAGE_SIZE) { unsigned long slack = SHMLBA - PAGE_SIZE; addr = get_unmapped_area(NULL, hint, len + slack, pgoff, flags); if (!(addr & ~PAGE_MASK)) { unsigned long kvirt = (unsigned long) map->handle; if ((kvirt & (SHMLBA - 1)) != (addr & (SHMLBA - 1))) { unsigned long koff, aoff; koff = kvirt & (SHMLBA - 1); aoff = addr & (SHMLBA - 1); if (koff < aoff) koff += SHMLBA; addr += (koff - aoff); } } } else { addr = get_unmapped_area(NULL, hint, len, pgoff, flags); } return addr; } #include "drm_core.h" /* This functions must be here since it references DRM(numdevs) * which drm_drv.h declares. */ int ffb_presetup(drm_device_t *dev) { ffb_dev_priv_t *ffb_priv; drm_device_t *temp_dev; int ret = 0; int i; /* Check for the case where no device was found. */ if (ffb_position == NULL) return -ENODEV; /* Find our instance number by finding our device in dev structure */ for (i = 0; i < DRM(numdevs); i++) { temp_dev = &(DRM(device)[i]); if(temp_dev == dev) break; } if (i == DRM(numdevs)) return -ENODEV; ffb_priv = kmalloc(sizeof(ffb_dev_priv_t), GFP_KERNEL); if (!ffb_priv) return -ENOMEM; memset(ffb_priv, 0, sizeof(*ffb_priv)); dev->dev_private = ffb_priv; ret = ffb_init_one(dev, ffb_position[i].node, ffb_position[i].root, i); return ret; }


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