14b223eefe43d201c323d120a01dbd0dcbba64e6dBen Skeggs/* 2310ff414b32e66d832307bedd99ba75908e4e36dBen Skeggs * Copyright 2011 Red Hat Inc. 34b223eefe43d201c323d120a01dbd0dcbba64e6dBen Skeggs * 44b223eefe43d201c323d120a01dbd0dcbba64e6dBen Skeggs * Permission is hereby granted, free of charge, to any person obtaining a 54b223eefe43d201c323d120a01dbd0dcbba64e6dBen Skeggs * copy of this software and associated documentation files (the "Software"), 64b223eefe43d201c323d120a01dbd0dcbba64e6dBen Skeggs * to deal in the Software without restriction, including without limitation 74b223eefe43d201c323d120a01dbd0dcbba64e6dBen Skeggs * the rights to use, copy, modify, merge, publish, distribute, sublicense, 84b223eefe43d201c323d120a01dbd0dcbba64e6dBen Skeggs * and/or sell copies of the Software, and to permit persons to whom the 94b223eefe43d201c323d120a01dbd0dcbba64e6dBen Skeggs * Software is furnished to do so, subject to the following conditions: 104b223eefe43d201c323d120a01dbd0dcbba64e6dBen Skeggs * 114b223eefe43d201c323d120a01dbd0dcbba64e6dBen Skeggs * The above copyright notice and this permission notice shall be included in 124b223eefe43d201c323d120a01dbd0dcbba64e6dBen Skeggs * all copies or substantial portions of the Software. 134b223eefe43d201c323d120a01dbd0dcbba64e6dBen Skeggs * 144b223eefe43d201c323d120a01dbd0dcbba64e6dBen Skeggs * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 154b223eefe43d201c323d120a01dbd0dcbba64e6dBen Skeggs * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 164b223eefe43d201c323d120a01dbd0dcbba64e6dBen Skeggs * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 174b223eefe43d201c323d120a01dbd0dcbba64e6dBen Skeggs * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR 184b223eefe43d201c323d120a01dbd0dcbba64e6dBen Skeggs * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, 194b223eefe43d201c323d120a01dbd0dcbba64e6dBen Skeggs * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR 204b223eefe43d201c323d120a01dbd0dcbba64e6dBen Skeggs * OTHER DEALINGS IN THE SOFTWARE. 214b223eefe43d201c323d120a01dbd0dcbba64e6dBen Skeggs * 224b223eefe43d201c323d120a01dbd0dcbba64e6dBen Skeggs * Authors: Ben Skeggs 234b223eefe43d201c323d120a01dbd0dcbba64e6dBen Skeggs */ 244b223eefe43d201c323d120a01dbd0dcbba64e6dBen Skeggs 254b223eefe43d201c323d120a01dbd0dcbba64e6dBen Skeggs#include "drmP.h" 26310ff414b32e66d832307bedd99ba75908e4e36dBen Skeggs#include "drm.h" 274b223eefe43d201c323d120a01dbd0dcbba64e6dBen Skeggs#include "nouveau_drv.h" 28310ff414b32e66d832307bedd99ba75908e4e36dBen Skeggs#include "nouveau_drm.h" 29310ff414b32e66d832307bedd99ba75908e4e36dBen Skeggs 30310ff414b32e66d832307bedd99ba75908e4e36dBen Skeggsstruct nvc0_fb_priv { 31310ff414b32e66d832307bedd99ba75908e4e36dBen Skeggs struct page *r100c10_page; 32310ff414b32e66d832307bedd99ba75908e4e36dBen Skeggs dma_addr_t r100c10; 33310ff414b32e66d832307bedd99ba75908e4e36dBen Skeggs}; 34310ff414b32e66d832307bedd99ba75908e4e36dBen Skeggs 35a14845121c1e9cfe302d23ca4ffcfc62cf8e1033Ben Skeggsstatic inline void 36a14845121c1e9cfe302d23ca4ffcfc62cf8e1033Ben Skeggsnvc0_mfb_subp_isr(struct drm_device *dev, int unit, int subp) 37a14845121c1e9cfe302d23ca4ffcfc62cf8e1033Ben Skeggs{ 38a14845121c1e9cfe302d23ca4ffcfc62cf8e1033Ben Skeggs u32 subp_base = 0x141000 + (unit * 0x2000) + (subp * 0x400); 39a14845121c1e9cfe302d23ca4ffcfc62cf8e1033Ben Skeggs u32 stat = nv_rd32(dev, subp_base + 0x020); 40a14845121c1e9cfe302d23ca4ffcfc62cf8e1033Ben Skeggs 41a14845121c1e9cfe302d23ca4ffcfc62cf8e1033Ben Skeggs if (stat) { 42a14845121c1e9cfe302d23ca4ffcfc62cf8e1033Ben Skeggs NV_INFO(dev, "PMFB%d_SUBP%d: 0x%08x\n", unit, subp, stat); 43a14845121c1e9cfe302d23ca4ffcfc62cf8e1033Ben Skeggs nv_wr32(dev, subp_base + 0x020, stat); 44a14845121c1e9cfe302d23ca4ffcfc62cf8e1033Ben Skeggs } 45a14845121c1e9cfe302d23ca4ffcfc62cf8e1033Ben Skeggs} 46a14845121c1e9cfe302d23ca4ffcfc62cf8e1033Ben Skeggs 47a14845121c1e9cfe302d23ca4ffcfc62cf8e1033Ben Skeggsstatic void 48a14845121c1e9cfe302d23ca4ffcfc62cf8e1033Ben Skeggsnvc0_mfb_isr(struct drm_device *dev) 49a14845121c1e9cfe302d23ca4ffcfc62cf8e1033Ben Skeggs{ 50a14845121c1e9cfe302d23ca4ffcfc62cf8e1033Ben Skeggs u32 units = nv_rd32(dev, 0x00017c); 51a14845121c1e9cfe302d23ca4ffcfc62cf8e1033Ben Skeggs while (units) { 52a14845121c1e9cfe302d23ca4ffcfc62cf8e1033Ben Skeggs u32 subp, unit = ffs(units) - 1; 53a14845121c1e9cfe302d23ca4ffcfc62cf8e1033Ben Skeggs for (subp = 0; subp < 2; subp++) 54a14845121c1e9cfe302d23ca4ffcfc62cf8e1033Ben Skeggs nvc0_mfb_subp_isr(dev, unit, subp); 55a14845121c1e9cfe302d23ca4ffcfc62cf8e1033Ben Skeggs units &= ~(1 << unit); 56a14845121c1e9cfe302d23ca4ffcfc62cf8e1033Ben Skeggs } 57ffc6a4e49e5bc117aac13ed752cfc018c163e2acChristoph Bumiller 58ffc6a4e49e5bc117aac13ed752cfc018c163e2acChristoph Bumiller /* we do something horribly wrong and upset PMFB a lot, so mask off 59ffc6a4e49e5bc117aac13ed752cfc018c163e2acChristoph Bumiller * interrupts from it after the first one until it's fixed 60ffc6a4e49e5bc117aac13ed752cfc018c163e2acChristoph Bumiller */ 61ffc6a4e49e5bc117aac13ed752cfc018c163e2acChristoph Bumiller nv_mask(dev, 0x000640, 0x02000000, 0x00000000); 62a14845121c1e9cfe302d23ca4ffcfc62cf8e1033Ben Skeggs} 63a14845121c1e9cfe302d23ca4ffcfc62cf8e1033Ben Skeggs 64310ff414b32e66d832307bedd99ba75908e4e36dBen Skeggsstatic void 65310ff414b32e66d832307bedd99ba75908e4e36dBen Skeggsnvc0_fb_destroy(struct drm_device *dev) 66310ff414b32e66d832307bedd99ba75908e4e36dBen Skeggs{ 67310ff414b32e66d832307bedd99ba75908e4e36dBen Skeggs struct drm_nouveau_private *dev_priv = dev->dev_private; 68310ff414b32e66d832307bedd99ba75908e4e36dBen Skeggs struct nouveau_fb_engine *pfb = &dev_priv->engine.fb; 69310ff414b32e66d832307bedd99ba75908e4e36dBen Skeggs struct nvc0_fb_priv *priv = pfb->priv; 70310ff414b32e66d832307bedd99ba75908e4e36dBen Skeggs 71a14845121c1e9cfe302d23ca4ffcfc62cf8e1033Ben Skeggs nouveau_irq_unregister(dev, 25); 72a14845121c1e9cfe302d23ca4ffcfc62cf8e1033Ben Skeggs 73310ff414b32e66d832307bedd99ba75908e4e36dBen Skeggs if (priv->r100c10_page) { 74310ff414b32e66d832307bedd99ba75908e4e36dBen Skeggs pci_unmap_page(dev->pdev, priv->r100c10, PAGE_SIZE, 75310ff414b32e66d832307bedd99ba75908e4e36dBen Skeggs PCI_DMA_BIDIRECTIONAL); 76310ff414b32e66d832307bedd99ba75908e4e36dBen Skeggs __free_page(priv->r100c10_page); 77310ff414b32e66d832307bedd99ba75908e4e36dBen Skeggs } 78310ff414b32e66d832307bedd99ba75908e4e36dBen Skeggs 79310ff414b32e66d832307bedd99ba75908e4e36dBen Skeggs kfree(priv); 80310ff414b32e66d832307bedd99ba75908e4e36dBen Skeggs pfb->priv = NULL; 81310ff414b32e66d832307bedd99ba75908e4e36dBen Skeggs} 82310ff414b32e66d832307bedd99ba75908e4e36dBen Skeggs 83310ff414b32e66d832307bedd99ba75908e4e36dBen Skeggsstatic int 84310ff414b32e66d832307bedd99ba75908e4e36dBen Skeggsnvc0_fb_create(struct drm_device *dev) 85310ff414b32e66d832307bedd99ba75908e4e36dBen Skeggs{ 86310ff414b32e66d832307bedd99ba75908e4e36dBen Skeggs struct drm_nouveau_private *dev_priv = dev->dev_private; 87310ff414b32e66d832307bedd99ba75908e4e36dBen Skeggs struct nouveau_fb_engine *pfb = &dev_priv->engine.fb; 88310ff414b32e66d832307bedd99ba75908e4e36dBen Skeggs struct nvc0_fb_priv *priv; 89310ff414b32e66d832307bedd99ba75908e4e36dBen Skeggs 90310ff414b32e66d832307bedd99ba75908e4e36dBen Skeggs priv = kzalloc(sizeof(*priv), GFP_KERNEL); 91310ff414b32e66d832307bedd99ba75908e4e36dBen Skeggs if (!priv) 92310ff414b32e66d832307bedd99ba75908e4e36dBen Skeggs return -ENOMEM; 93310ff414b32e66d832307bedd99ba75908e4e36dBen Skeggs pfb->priv = priv; 94310ff414b32e66d832307bedd99ba75908e4e36dBen Skeggs 95310ff414b32e66d832307bedd99ba75908e4e36dBen Skeggs priv->r100c10_page = alloc_page(GFP_KERNEL | __GFP_ZERO); 96310ff414b32e66d832307bedd99ba75908e4e36dBen Skeggs if (!priv->r100c10_page) { 97310ff414b32e66d832307bedd99ba75908e4e36dBen Skeggs nvc0_fb_destroy(dev); 98310ff414b32e66d832307bedd99ba75908e4e36dBen Skeggs return -ENOMEM; 99310ff414b32e66d832307bedd99ba75908e4e36dBen Skeggs } 100310ff414b32e66d832307bedd99ba75908e4e36dBen Skeggs 101310ff414b32e66d832307bedd99ba75908e4e36dBen Skeggs priv->r100c10 = pci_map_page(dev->pdev, priv->r100c10_page, 0, 102310ff414b32e66d832307bedd99ba75908e4e36dBen Skeggs PAGE_SIZE, PCI_DMA_BIDIRECTIONAL); 103310ff414b32e66d832307bedd99ba75908e4e36dBen Skeggs if (pci_dma_mapping_error(dev->pdev, priv->r100c10)) { 104310ff414b32e66d832307bedd99ba75908e4e36dBen Skeggs nvc0_fb_destroy(dev); 105310ff414b32e66d832307bedd99ba75908e4e36dBen Skeggs return -EFAULT; 106310ff414b32e66d832307bedd99ba75908e4e36dBen Skeggs } 107310ff414b32e66d832307bedd99ba75908e4e36dBen Skeggs 108a14845121c1e9cfe302d23ca4ffcfc62cf8e1033Ben Skeggs nouveau_irq_register(dev, 25, nvc0_mfb_isr); 109310ff414b32e66d832307bedd99ba75908e4e36dBen Skeggs return 0; 110310ff414b32e66d832307bedd99ba75908e4e36dBen Skeggs} 1114b223eefe43d201c323d120a01dbd0dcbba64e6dBen Skeggs 1124b223eefe43d201c323d120a01dbd0dcbba64e6dBen Skeggsint 1134b223eefe43d201c323d120a01dbd0dcbba64e6dBen Skeggsnvc0_fb_init(struct drm_device *dev) 1144b223eefe43d201c323d120a01dbd0dcbba64e6dBen Skeggs{ 115310ff414b32e66d832307bedd99ba75908e4e36dBen Skeggs struct drm_nouveau_private *dev_priv = dev->dev_private; 116310ff414b32e66d832307bedd99ba75908e4e36dBen Skeggs struct nvc0_fb_priv *priv; 117310ff414b32e66d832307bedd99ba75908e4e36dBen Skeggs int ret; 118310ff414b32e66d832307bedd99ba75908e4e36dBen Skeggs 119310ff414b32e66d832307bedd99ba75908e4e36dBen Skeggs if (!dev_priv->engine.fb.priv) { 120310ff414b32e66d832307bedd99ba75908e4e36dBen Skeggs ret = nvc0_fb_create(dev); 121310ff414b32e66d832307bedd99ba75908e4e36dBen Skeggs if (ret) 122310ff414b32e66d832307bedd99ba75908e4e36dBen Skeggs return ret; 123310ff414b32e66d832307bedd99ba75908e4e36dBen Skeggs } 124310ff414b32e66d832307bedd99ba75908e4e36dBen Skeggs priv = dev_priv->engine.fb.priv; 125310ff414b32e66d832307bedd99ba75908e4e36dBen Skeggs 126310ff414b32e66d832307bedd99ba75908e4e36dBen Skeggs nv_wr32(dev, 0x100c10, priv->r100c10 >> 8); 1274b223eefe43d201c323d120a01dbd0dcbba64e6dBen Skeggs return 0; 1284b223eefe43d201c323d120a01dbd0dcbba64e6dBen Skeggs} 1294b223eefe43d201c323d120a01dbd0dcbba64e6dBen Skeggs 1304b223eefe43d201c323d120a01dbd0dcbba64e6dBen Skeggsvoid 1314b223eefe43d201c323d120a01dbd0dcbba64e6dBen Skeggsnvc0_fb_takedown(struct drm_device *dev) 1324b223eefe43d201c323d120a01dbd0dcbba64e6dBen Skeggs{ 133310ff414b32e66d832307bedd99ba75908e4e36dBen Skeggs nvc0_fb_destroy(dev); 1344b223eefe43d201c323d120a01dbd0dcbba64e6dBen Skeggs} 135