diff options
Diffstat (limited to 'drivers/gpu/drm/nouveau/core/subdev/fb/nvc0.c')
-rw-r--r-- | drivers/gpu/drm/nouveau/core/subdev/fb/nvc0.c | 252 |
1 files changed, 181 insertions, 71 deletions
diff --git a/drivers/gpu/drm/nouveau/core/subdev/fb/nvc0.c b/drivers/gpu/drm/nouveau/core/subdev/fb/nvc0.c index f054331..9f59f2b 100644 --- a/drivers/gpu/drm/nouveau/core/subdev/fb/nvc0.c +++ b/drivers/gpu/drm/nouveau/core/subdev/fb/nvc0.c @@ -1,5 +1,5 @@ /* - * Copyright 2011 Red Hat Inc. + * Copyright 2012 Red Hat Inc. * * Permission is hereby granted, free of charge, to any person obtaining a * copy of this software and associated documentation files (the "Software"), @@ -22,114 +22,224 @@ * Authors: Ben Skeggs */ -#include "drmP.h" -#include "drm.h" -#include "nouveau_drv.h" -#include <nouveau_drm.h> +#include <subdev/fb.h> +#include <subdev/bios.h> struct nvc0_fb_priv { + struct nouveau_fb base; struct page *r100c10_page; dma_addr_t r100c10; }; -static inline void -nvc0_mfb_subp_isr(struct drm_device *dev, int unit, int subp) +/* 0 = unsupported + * 1 = non-compressed + * 3 = compressed + */ +static const u8 types[256] = { + 1, 1, 3, 3, 3, 3, 0, 3, 3, 3, 3, 0, 0, 0, 0, 0, + 0, 1, 0, 0, 0, 0, 0, 3, 3, 3, 3, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 3, 3, 3, 3, 3, 3, + 3, 3, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 3, 3, 3, 3, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 3, 3, 3, 3, 0, 1, 1, 1, 1, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 3, 3, 3, 3, 1, 1, 1, 1, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 3, + 3, 3, 3, 1, 0, 0, 0, 0, 0, 0, 0, 0, 3, 3, 3, 3, + 3, 3, 0, 0, 0, 0, 0, 0, 3, 0, 0, 3, 0, 3, 0, 3, + 3, 0, 3, 3, 3, 3, 3, 0, 0, 3, 0, 3, 0, 3, 3, 0, + 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 0, 1, 1, 0 +}; + +static bool +nvc0_fb_memtype_valid(struct nouveau_fb *pfb, u32 tile_flags) { - u32 subp_base = 0x141000 + (unit * 0x2000) + (subp * 0x400); - u32 stat = nv_rd32(dev, subp_base + 0x020); + u8 memtype = (tile_flags & 0x0000ff00) >> 8; + return likely((types[memtype] == 1)); +} - if (stat) { - NV_INFO(dev, "PMFB%d_SUBP%d: 0x%08x\n", unit, subp, stat); - nv_wr32(dev, subp_base + 0x020, stat); - } +static int +nvc0_fb_vram_new(struct nouveau_fb *pfb, u64 size, u32 align, u32 ncmin, + u32 memtype, struct nouveau_mem **pmem) +{ + struct nouveau_mm *mm = &pfb->vram; + struct nouveau_mm_node *r; + struct nouveau_mem *mem; + int type = (memtype & 0x0ff); + int back = (memtype & 0x800); + int ret; + + size >>= 12; + align >>= 12; + ncmin >>= 12; + if (!ncmin) + ncmin = size; + + mem = kzalloc(sizeof(*mem), GFP_KERNEL); + if (!mem) + return -ENOMEM; + + INIT_LIST_HEAD(&mem->regions); + mem->memtype = type; + mem->size = size; + + mutex_lock(&mm->mutex); + do { + if (back) + ret = nouveau_mm_tail(mm, 1, size, ncmin, align, &r); + else + ret = nouveau_mm_head(mm, 1, size, ncmin, align, &r); + if (ret) { + mutex_unlock(&mm->mutex); + pfb->ram.put(pfb, &mem); + return ret; + } + + list_add_tail(&r->rl_entry, &mem->regions); + size -= r->length; + } while (size); + mutex_unlock(&mm->mutex); + + r = list_first_entry(&mem->regions, struct nouveau_mm_node, rl_entry); + mem->offset = (u64)r->offset << 12; + *pmem = mem; + return 0; } -static void -nvc0_mfb_isr(struct drm_device *dev) +static int +nvc0_fb_init(struct nouveau_object *object) { - u32 units = nv_rd32(dev, 0x00017c); - while (units) { - u32 subp, unit = ffs(units) - 1; - for (subp = 0; subp < 2; subp++) - nvc0_mfb_subp_isr(dev, unit, subp); - units &= ~(1 << unit); - } + struct nvc0_fb_priv *priv = (void *)object; + int ret; + + ret = nouveau_fb_init(&priv->base); + if (ret) + return ret; - /* we do something horribly wrong and upset PMFB a lot, so mask off - * interrupts from it after the first one until it's fixed - */ - nv_mask(dev, 0x000640, 0x02000000, 0x00000000); + nv_wr32(priv, 0x100c10, priv->r100c10 >> 8); + return 0; } static void -nvc0_fb_destroy(struct drm_device *dev) +nvc0_fb_dtor(struct nouveau_object *object) { - struct drm_nouveau_private *dev_priv = dev->dev_private; - struct nouveau_fb_engine *pfb = &dev_priv->engine.fb; - struct nvc0_fb_priv *priv = pfb->priv; - - nouveau_irq_unregister(dev, 25); + struct nouveau_device *device = nv_device(object); + struct nvc0_fb_priv *priv = (void *)object; if (priv->r100c10_page) { - pci_unmap_page(dev->pdev, priv->r100c10, PAGE_SIZE, + pci_unmap_page(device->pdev, priv->r100c10, PAGE_SIZE, PCI_DMA_BIDIRECTIONAL); __free_page(priv->r100c10_page); } - kfree(priv); - pfb->priv = NULL; + nouveau_fb_destroy(&priv->base); } static int -nvc0_fb_create(struct drm_device *dev) +nvc0_vram_detect(struct nvc0_fb_priv *priv) { - struct drm_nouveau_private *dev_priv = dev->dev_private; - struct nouveau_fb_engine *pfb = &dev_priv->engine.fb; - struct nvc0_fb_priv *priv; - - priv = kzalloc(sizeof(*priv), GFP_KERNEL); - if (!priv) - return -ENOMEM; - pfb->priv = priv; + struct nouveau_bios *bios = nouveau_bios(priv); + struct nouveau_fb *pfb = &priv->base; + const u32 rsvd_head = ( 256 * 1024) >> 12; /* vga memory */ + const u32 rsvd_tail = (1024 * 1024) >> 12; /* vbios etc */ + u32 parts = nv_rd32(priv, 0x022438); + u32 pmask = nv_rd32(priv, 0x022554); + u32 bsize = nv_rd32(priv, 0x10f20c); + u32 offset, length; + bool uniform = true; + int ret, part; + + nv_debug(priv, "0x100800: 0x%08x\n", nv_rd32(priv, 0x100800)); + nv_debug(priv, "parts 0x%08x mask 0x%08x\n", parts, pmask); + + priv->base.ram.type = nouveau_fb_bios_memtype(bios); + priv->base.ram.ranks = (nv_rd32(priv, 0x10f200) & 0x00000004) ? 2 : 1; + + /* read amount of vram attached to each memory controller */ + for (part = 0; part < parts; part++) { + if (!(pmask & (1 << part))) { + u32 psize = nv_rd32(priv, 0x11020c + (part * 0x1000)); + if (psize != bsize) { + if (psize < bsize) + bsize = psize; + uniform = false; + } + + nv_debug(priv, "%d: mem_amount 0x%08x\n", part, psize); + priv->base.ram.size += (u64)psize << 20; + } + } - priv->r100c10_page = alloc_page(GFP_KERNEL | __GFP_ZERO); - if (!priv->r100c10_page) { - nvc0_fb_destroy(dev); - return -ENOMEM; + /* if all controllers have the same amount attached, there's no holes */ + if (uniform) { + offset = rsvd_head; + length = (priv->base.ram.size >> 12) - rsvd_head - rsvd_tail; + return nouveau_mm_init(&pfb->vram, offset, length, 1); } - priv->r100c10 = pci_map_page(dev->pdev, priv->r100c10_page, 0, - PAGE_SIZE, PCI_DMA_BIDIRECTIONAL); - if (pci_dma_mapping_error(dev->pdev, priv->r100c10)) { - nvc0_fb_destroy(dev); - return -EFAULT; + /* otherwise, address lowest common amount from 0GiB */ + ret = nouveau_mm_init(&pfb->vram, rsvd_head, (bsize << 8) * parts, 1); + if (ret) + return ret; + + /* and the rest starting from (8GiB + common_size) */ + offset = (0x0200000000ULL >> 12) + (bsize << 8); + length = (priv->base.ram.size >> 12) - (bsize << 8) - rsvd_tail; + + ret = nouveau_mm_init(&pfb->vram, offset, length, 0); + if (ret) { + nouveau_mm_fini(&pfb->vram); + return ret; } - nouveau_irq_register(dev, 25, nvc0_mfb_isr); return 0; } -int -nvc0_fb_init(struct drm_device *dev) +static int +nvc0_fb_ctor(struct nouveau_object *parent, struct nouveau_object *engine, + struct nouveau_oclass *oclass, void *data, u32 size, + struct nouveau_object **pobject) { - struct drm_nouveau_private *dev_priv = dev->dev_private; + struct nouveau_device *device = nv_device(parent); struct nvc0_fb_priv *priv; int ret; - if (!dev_priv->engine.fb.priv) { - ret = nvc0_fb_create(dev); - if (ret) - return ret; - } - priv = dev_priv->engine.fb.priv; + ret = nouveau_fb_create(parent, engine, oclass, &priv); + *pobject = nv_object(priv); + if (ret) + return ret; - nv_wr32(dev, 0x100c10, priv->r100c10 >> 8); - nv_mask(dev, 0x17e820, 0x00100000, 0x00000000); /* NV_PLTCG_INTR_EN */ - return 0; -} + priv->base.memtype_valid = nvc0_fb_memtype_valid; + priv->base.ram.get = nvc0_fb_vram_new; + priv->base.ram.put = nv50_fb_vram_del; -void -nvc0_fb_takedown(struct drm_device *dev) -{ - nvc0_fb_destroy(dev); + ret = nvc0_vram_detect(priv); + if (ret) + return ret; + + priv->r100c10_page = alloc_page(GFP_KERNEL | __GFP_ZERO); + if (!priv->r100c10_page) + return -ENOMEM; + + priv->r100c10 = pci_map_page(device->pdev, priv->r100c10_page, 0, + PAGE_SIZE, PCI_DMA_BIDIRECTIONAL); + if (pci_dma_mapping_error(device->pdev, priv->r100c10)) + return -EFAULT; + + return nouveau_fb_created(&priv->base); } + + +struct nouveau_oclass +nvc0_fb_oclass = { + .handle = NV_SUBDEV(FB, 0xc0), + .ofuncs = &(struct nouveau_ofuncs) { + .ctor = nvc0_fb_ctor, + .dtor = nvc0_fb_dtor, + .init = nvc0_fb_init, + .fini = _nouveau_fb_fini, + }, +}; |