Revision f32ab7547161b9fa7ebfbc4f18ea1eb3fd49fe25 authored by =?UTF-8?q?Christian=20K=C3=B6nig?= on 11 January 2018, 13:23:29 UTC, committed by Bjorn Helgaas on 11 January 2018, 17:22:39 UTC
Only try to enable a 64-bit window on AMD CPUs when "pci=big_root_window" is specified. This taints the kernel because the new 64-bit window uses address space we don't know anything about, and it may contain unreported devices or memory that would conflict with the window. The pci_amd_enable_64bit_bar() quirk that enables the window is specific to AMD CPUs. The generic solution would be to have the firmware enable the window and describe it in the host bridge's _CRS method, or at least describe it in the _PRS method so the OS would have the option of enabling it. Signed-off-by: Christian König <christian.koenig@amd.com> [bhelgaas: changelog, extend doc, mention taint in dmesg] Signed-off-by: Bjorn Helgaas <helgaas@kernel.org>
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| File | Mode | Size |
|---|---|---|
| include-prefixes | ||
| libfdt | ||
| .gitignore | -rw-r--r-- | 54 bytes |
| Makefile | -rw-r--r-- | 1.0 KB |
| Makefile.dtc | -rw-r--r-- | 372 bytes |
| checks.c | -rw-r--r-- | 36.3 KB |
| data.c | -rw-r--r-- | 5.1 KB |
| dt_to_config | -rwxr-xr-x | 40.9 KB |
| dtc-lexer.l | -rw-r--r-- | 6.7 KB |
| dtc-lexer.lex.c_shipped | -rw-r--r-- | 59.0 KB |
| dtc-parser.tab.c_shipped | -rw-r--r-- | 70.9 KB |
| dtc-parser.tab.h_shipped | -rw-r--r-- | 3.1 KB |
| dtc-parser.y | -rw-r--r-- | 9.8 KB |
| dtc.c | -rw-r--r-- | 9.3 KB |
| dtc.h | -rw-r--r-- | 8.3 KB |
| dtx_diff | -rwxr-xr-x | 8.5 KB |
| fdtdump.c | -rw-r--r-- | 3.7 KB |
| fdtget.c | -rw-r--r-- | 8.6 KB |
| fdtput.c | -rw-r--r-- | 8.3 KB |
| flattree.c | -rw-r--r-- | 22.2 KB |
| fstree.c | -rw-r--r-- | 2.2 KB |
| livetree.c | -rw-r--r-- | 20.1 KB |
| srcpos.c | -rw-r--r-- | 6.8 KB |
| srcpos.h | -rw-r--r-- | 3.5 KB |
| treesource.c | -rw-r--r-- | 6.0 KB |
| update-dtc-source.sh | -rwxr-xr-x | 2.6 KB |
| util.c | -rw-r--r-- | 9.4 KB |
| util.h | -rw-r--r-- | 7.6 KB |
| version_gen.h | -rw-r--r-- | 42 bytes |
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