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  1. 10 8月, 2017 1 次提交
  3. 01 3月, 2016 1 次提交
  5. 23 10月, 2015 1 次提交
    • S
      powerpc/85xx: Load all early TLB entries at once · d9e1831a
      由 Scott Wood 提交于 
      Use an AS=1 trampoline TLB entry to allow all normal TLB1 entries to
be loaded at once.  This avoids the need to keep the translation that
code is executing from in the same TLB entry in the final TLB
configuration as during early boot, which in turn is helpful for
relocatable kernels (e.g. kdump) where the kernel is not running from
what would be the first TLB entry.

On e6500, we limit map_mem_in_cams() to the primary hwthread of a
core (the boot cpu is always considered primary, as a kdump kernel
can be entered on any cpu).  Each TLB only needs to be set up once,
and when we do, we don't want another thread to be running when we
create a temporary trampoline TLB1 entry.
Signed-off-by: NScott Wood <scottwood@freescale.com>
      d9e1831a
  7. 10 1月, 2014 1 次提交
    • K
      powerpc/fsl_booke: smp support for booting a relocatable kernel above 64M · 0be7d969
      由 Kevin Hao 提交于 
      When booting above the 64M for a secondary cpu, we also face the
same issue as the boot cpu that the PAGE_OFFSET map two different
physical address for the init tlb and the final map. So we have to use
switch_to_as1/restore_to_as0 between the conversion of these two
maps. When restoring to as0 for a secondary cpu, we only need to
return to the caller. So add a new parameter for function
restore_to_as0 for this purpose.

Use LOAD_REG_ADDR_PIC to get the address of variables which may
be used before we set the final map in cams for the secondary cpu.
Move the setting of cams a bit earlier in order to avoid the
unnecessary using of LOAD_REG_ADDR_PIC.
Signed-off-by: NKevin Hao <haokexin@gmail.com>
Signed-off-by: NScott Wood <scottwood@freescale.com>
      0be7d969
  9. 15 11月, 2012 1 次提交
  11. 10 7月, 2012 3 次提交
  13. 02 2月, 2011 1 次提交
  15. 14 10月, 2010 1 次提交
    • K
      powerpc/fsl-booke64: Use TLB CAMs to cover linear mapping on FSL 64-bit chips · 55fd766b
      由 Kumar Gala 提交于 
      On Freescale parts typically have TLB array for large mappings that we can
bolt the linear mapping into.  We utilize the code that already exists
on PPC32 on the 64-bit side to setup the linear mapping to be cover by
bolted TLB entries.  We utilize a quarter of the variable size TLB array
for this purpose.

Additionally, we limit the amount of memory to what we can cover via
bolted entries so we don't get secondary faults in the TLB miss
handlers.  We should fix this limitation in the future.
Signed-off-by: NKumar Gala <galak@kernel.crashing.org>
      55fd766b
  17. 23 8月, 2010 1 次提交
  19. 17 5月, 2010 1 次提交
  21. 14 5月, 2010 1 次提交
  23. 05 5月, 2010 1 次提交
  25. 25 8月, 2009 1 次提交
  27. 20 8月, 2009 2 次提交
  29. 23 4月, 2009 2 次提交
  31. 07 4月, 2009 1 次提交
  33. 09 3月, 2009 1 次提交
  35. 21 12月, 2008 2 次提交