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Commit f7a849153be3b66326b52dce0d07896b56cb4cd7

Authored by Atsushi Nemoto
Committed by Ralf Baechle
1 parent 6feb6efaec
Exists in master and in 7 other branches imx_3.0.35_4.1.0, imx_3.10.17_1.0.1_ga, imx_3.10.53_1.1.0_ga, imx_3.14.28_1.0.0_ga, smarc-imx_3.10.53_1.1.0_ga, smarc-imx_3.14.28_1.0.0_ga, smarc-l5.0.0_1.0.0-ga

[MIPS] Fix FIXADDR_TOP for TX39/TX49. 

FIXADDR_TOP is used for HIGHMEM and for upper limit of vmalloc area on
32bit kernel.  TX39XX and TX49XX have "reserved" segment in CKSEG3
area.  0xff000000-0xff3fffff on TX49XX and 0xff000000-0xfffeffff on
TX39XX are reserved (unmapped, uncached) therefore can not be used as
mapped area.

Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

Showing 1 changed file with 4 additions and 0 deletions Side-by-side Diff

include/asm-mips/fixmap.h
Diff comments   View file @ f7a8491
... ... @@ -69,7 +69,11 @@
69 69 * the start of the fixmap, and leave one page empty
70 70 * at the top of mem..
71 71 */
  72 +#if defined(CONFIG_CPU_TX39XX) || defined(CONFIG_CPU_TX49XX)
  73 +#define FIXADDR_TOP (0xff000000UL - 0x2000)
  74 +#else
72 75 #define FIXADDR_TOP (0xffffe000UL)
  76 +#endif
73 77 #define FIXADDR_SIZE (__end_of_fixed_addresses << PAGE_SHIFT)
74 78 #define FIXADDR_START (FIXADDR_TOP - FIXADDR_SIZE)
75 79