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author | Linus Torvalds <torvalds@linux-foundation.org> | 2011-07-26 09:21:09 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2011-07-26 09:21:09 -0700 |
commit | 757c26b804428ef10888b8e00f34994dbe361d3a (patch) | |
tree | 4695afbf476ce9818bc01d34d4c266811365296c /drivers/gpu/drm/nouveau/nvc0_fb.c | |
parent | e08dc1325feaf49eec392ee52feb2974ec3f5155 (diff) | |
parent | 5a96a899bbdee86024ab9ea6d02b9e242faacbed (diff) | |
download | op-kernel-dev-757c26b804428ef10888b8e00f34994dbe361d3a.zip op-kernel-dev-757c26b804428ef10888b8e00f34994dbe361d3a.tar.gz |
Merge branch 'drm-core-next' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6
* 'drm-core-next' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6: (135 commits)
drm/radeon/kms: fix DP training for DPEncoderService revision bigger than 1.1
drm/radeon/kms: add missing vddci setting on NI+
drm/radeon: Add a rmb() in IH processing
drm/radeon: ATOM Endian fix for atombios_crtc_program_pll()
drm/radeon: Fix the definition of RADEON_BUF_SWAP_32BIT
drm/radeon: Do an MMIO read on interrupts when not uisng MSIs
drm/radeon: Writeback endian fixes
drm/radeon: Remove a bunch of useless _iomem casts
drm/gem: add support for private objects
DRM: clean up and document parsing of video= parameter
DRM: Radeon: Fix section mismatch.
drm: really make debug levels match in edid failure code
drm/radeon/kms: fix i2c map for rv250/280
drm/nouveau/gr: disable fifo access and idle before suspend ctx unload
drm/nouveau: pass flag to engine fini() method on suspend
drm/nouveau: replace nv04_graph_fifo_access() use with direct reg bashing
drm/nv40/gr: rewrite/split context takedown functions
drm/nouveau: detect disabled device in irq handler and return IRQ_NONE
drm/nouveau: ignore connector type when deciding digital/analog on DVI-I
drm/nouveau: Add a quirk for Gigabyte NX86T
...
Diffstat (limited to 'drivers/gpu/drm/nouveau/nvc0_fb.c')
-rw-r--r-- | drivers/gpu/drm/nouveau/nvc0_fb.c | 68 |
1 files changed, 66 insertions, 2 deletions
diff --git a/drivers/gpu/drm/nouveau/nvc0_fb.c b/drivers/gpu/drm/nouveau/nvc0_fb.c index 26a9960..08e6b11 100644 --- a/drivers/gpu/drm/nouveau/nvc0_fb.c +++ b/drivers/gpu/drm/nouveau/nvc0_fb.c @@ -1,5 +1,5 @@ /* - * Copyright 2010 Red Hat Inc. + * 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"), @@ -23,16 +23,80 @@ */ #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 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; + + 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; + } + + 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); } |