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| author | Olof Johansson <olof@lixom.net> | 2012-11-05 10:09:12 -0800 |
|---|---|---|
| committer | Olof Johansson <olof@lixom.net> | 2012-11-05 10:09:12 -0800 |
| commit | 6d06721570aa0c38d886e3036796d59983963a27 (patch) | |
| tree | d674cf54e26837bee89095c211ffa362c8546f03 /arch/x86/kernel/setup.c | |
| parent | 148a8698763130c96004ef419b5f0d44a93d413c (diff) | |
| parent | 54ec52b6dd3b0ba4bc4eb97e7e1b2534705b326c (diff) | |
Merge branch 'depends/tty' into next/headers
Merging in Greg's tty tree including a cleanup patch needed by the OMAP serial
header cleanups.
* depends/tty: (305 commits)
tty/serial/8250: Make omap hardware workarounds local to 8250.h
serial/8250/8250_early: Prevent rounding error in uartclk
serial: samsung: use clk_prepare_enable and clk_disable_unprepare
TTY: Report warning when low_latency flag is wrongly used
console: use might_sleep in console_lock
TTY: move tty buffers to tty_port
TTY: add port -> tty link
TTY: tty_buffer, cache pointer to tty->buf
TTY: move TTY_FLUSH* flags to tty_port
TTY: n_tty, propagate n_tty_data
TTY: move ldisc data from tty_struct: locks
TTY: move ldisc data from tty_struct: read_* and echo_* and canon_* stuff
TTY: move ldisc data from tty_struct: bitmaps
TTY: move ldisc data from tty_struct: simple members
TTY: n_tty, add ldisc data to n_tty
TTY: audit, stop accessing tty->icount
TTY: n_tty, remove bogus checks
TTY: n_tty, simplify read_buf+echo_buf allocation
TTY: hci_ldisc, remove invalid check in open
TTY: ldisc, wait for idle ldisc in release
...
Diffstat (limited to 'arch/x86/kernel/setup.c')
| -rw-r--r-- | arch/x86/kernel/setup.c | 17 |
1 files changed, 15 insertions, 2 deletions
diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c index a2bb18e02839..468e98dfd44e 100644 --- a/arch/x86/kernel/setup.c +++ b/arch/x86/kernel/setup.c @@ -920,8 +920,21 @@ void __init setup_arch(char **cmdline_p) #ifdef CONFIG_X86_64 if (max_pfn > max_low_pfn) { - max_pfn_mapped = init_memory_mapping(1UL<<32, - max_pfn<<PAGE_SHIFT); + int i; + for (i = 0; i < e820.nr_map; i++) { + struct e820entry *ei = &e820.map[i]; + + if (ei->addr + ei->size <= 1UL << 32) + continue; + + if (ei->type == E820_RESERVED) + continue; + + max_pfn_mapped = init_memory_mapping( + ei->addr < 1UL << 32 ? 1UL << 32 : ei->addr, + ei->addr + ei->size); + } + /* can we preseve max_low_pfn ?*/ max_low_pfn = max_pfn; } |