/* * Copyright (c) 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, sub license, * 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 (including the * next paragraph) 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 NON-INFRINGEMENT. IN NO EVENT SHALL * THE AUTHORS OR COPYRIGHT HOLDERS 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: Dave Airlie * Jerome Glisse */ #ifndef TTM_PAGE_ALLOC #define TTM_PAGE_ALLOC #include #include struct device; /** * Initialize pool allocator. */ int ttm_page_alloc_init(struct ttm_mem_global *glob, unsigned max_pages); /** * Free pool allocator. */ void ttm_page_alloc_fini(void); /** * ttm_pool_populate: * * @ttm: The struct ttm_tt to contain the backing pages. * * Add backing pages to all of @ttm */ extern int ttm_pool_populate(struct ttm_tt *ttm); /** * ttm_pool_unpopulate: * * @ttm: The struct ttm_tt which to free backing pages. * * Free all pages of @ttm */ extern void ttm_pool_unpopulate(struct ttm_tt *ttm); /** * Output the state of pools to debugfs file */ extern int ttm_page_alloc_debugfs(struct seq_file *m, void *data); #if defined(CONFIG_SWIOTLB) || defined(CONFIG_INTEL_IOMMU) /** * Initialize pool allocator. */ int ttm_dma_page_alloc_init(struct ttm_mem_global *glob, unsigned max_pages); /** * Free pool allocator. */ void ttm_dma_page_alloc_fini(void); /** * Output the state of pools to debugfs file */ extern int ttm_dma_page_alloc_debugfs(struct seq_file *m, void *data); extern int ttm_dma_populate(struct ttm_dma_tt *ttm_dma, struct device *dev); extern void ttm_dma_unpopulate(struct ttm_dma_tt *ttm_dma, struct device *dev); #else static inline int ttm_dma_page_alloc_init(struct ttm_mem_global *glob, unsigned max_pages) { return -ENODEV; } static inline void ttm_dma_page_alloc_fini(void) { return; } static inline int ttm_dma_page_alloc_debugfs(struct seq_file *m, void *data) { return 0; } static inline int ttm_dma_populate(struct ttm_dma_tt *ttm_dma, struct device *dev) { return -ENOMEM; } static inline void ttm_dma_unpopulate(struct ttm_dma_tt *ttm_dma, struct device *dev) { } #endif #endif git.cgi/linux/net-next.git/commit/include/trace/events?id=89e9f7bcd8744ea25fcf0ac671b8d72c10d7d790'>events/sunvnet.h
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authorBjorn Helgaas <bhelgaas@google.com>2016-12-28 14:55:16 -0600
committerBjorn Helgaas <bhelgaas@google.com>2017-01-11 09:11:15 -0600
commit89e9f7bcd8744ea25fcf0ac671b8d72c10d7d790 (patch)
treee941c52704b59bc7d5ffe0bbaa2d42b8fec8976a /include/trace/events/sunvnet.h
parenta782b5f986c3fa1cfa7f2b57941200c6a5809242 (diff)
x86/PCI: Ignore _CRS on Supermicro X8DTH-i/6/iF/6F
Martin reported that the Supermicro X8DTH-i/6/iF/6F advertises incorrect host bridge windows via _CRS: pci_root PNP0A08:00: host bridge window [io 0xf000-0xffff] pci_root PNP0A08:01: host bridge window [io 0xf000-0xffff] Both bridges advertise the 0xf000-0xffff window, which cannot be correct. Work around this by ignoring _CRS on this system. The downside is that we may not assign resources correctly to hot-added PCI devices (if they are possible on this system). Link: https://bugzilla.kernel.org/show_bug.cgi?id=42606 Reported-by: Martin Burnicki <martin.burnicki@meinberg.de> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> CC: stable@vger.kernel.org
Diffstat (limited to 'include/trace/events/sunvnet.h')