diff options
Diffstat (limited to 'drivers/gpu/drm/nouveau/nvc0_fb.c')
| -rw-r--r-- | drivers/gpu/drm/nouveau/nvc0_fb.c | 134 |
1 files changed, 0 insertions, 134 deletions
diff --git a/drivers/gpu/drm/nouveau/nvc0_fb.c b/drivers/gpu/drm/nouveau/nvc0_fb.c deleted file mode 100644 index f704e942372..00000000000 --- a/drivers/gpu/drm/nouveau/nvc0_fb.c +++ /dev/null @@ -1,134 +0,0 @@ -/* - * Copyright 2011 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"), - * 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 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 - * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) 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: Ben Skeggs - */ - -#include "drmP.h" -#include "drm.h" -#include "nouveau_drv.h" -#include "nouveau_drm.h" - -struct nvc0_fb_priv { - struct page *r100c10_page; - dma_addr_t r100c10; -}; - -static inline void -nvc0_mfb_subp_isr(struct drm_device *dev, int unit, int subp) -{ - u32 subp_base = 0x141000 + (unit * 0x2000) + (subp * 0x400); - u32 stat = nv_rd32(dev, subp_base + 0x020); - - if (stat) { - NV_INFO(dev, "PMFB%d_SUBP%d: 0x%08x\n", unit, subp, stat); - nv_wr32(dev, subp_base + 0x020, stat); - } -} - -static void -nvc0_mfb_isr(struct drm_device *dev) -{ - 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); - } - - /* 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); -} - -static void -nvc0_fb_destroy(struct drm_device *dev) -{ - 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); - - if (priv->r100c10_page) { - pci_unmap_page(dev->pdev, priv->r100c10, PAGE_SIZE, - PCI_DMA_BIDIRECTIONAL); - __free_page(priv->r100c10_page); - } - - kfree(priv); - pfb->priv = NULL; -} - -static int -nvc0_fb_create(struct drm_device *dev) -{ - 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; - - priv->r100c10_page = alloc_page(GFP_KERNEL | __GFP_ZERO); - if (!priv->r100c10_page) { - nvc0_fb_destroy(dev); - return -ENOMEM; - } - - 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; - } - - nouveau_irq_register(dev, 25, nvc0_mfb_isr); - return 0; -} - -int -nvc0_fb_init(struct drm_device *dev) -{ - struct drm_nouveau_private *dev_priv = dev->dev_private; - 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; - - nv_wr32(dev, 0x100c10, priv->r100c10 >> 8); - return 0; -} - -void -nvc0_fb_takedown(struct drm_device *dev) -{ - nvc0_fb_destroy(dev); -} |