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  1. 29 10月, 2005 3 次提交
  3. 27 10月, 2005 4 次提交
    • P
      powerpc: 32-bit CHRP SMP fixes · 80579e1f
      由 Paul Mackerras 提交于 
      Untested, but "should" work...  at least this way it compiles.
Signed-off-by: NPaul Mackerras <paulus@samba.org>
      80579e1f
    • D
      [PATCH] powerpc: Merge parport.h · 2765ca25
      由 David Gibson 提交于 
      Save for the header #define, ppc32 and ppc64 versions of parport.h are
identical.  This patch merges them.
Signed-off-by: NDavid Gibson <dwg@au1.ibm.com>
Signed-off-by: NPaul Mackerras <paulus@samba.org>
      2765ca25
    • D
      [PATCH] powerpc: Fix handling of fpscr on 64-bit · 25c8a78b
      由 David Gibson 提交于 
      The recent merge of fpu.S broken the handling of fpscr for
ARCH=powerpc and CONFIG_PPC64=y.  FP registers could be corrupted,
leading to strange random application crashes.

The confusion arises, because the thread_struct has (and requires) a
64-bit area to save the fpscr, because we use load/store double
instructions to get it in to/out of the FPU.  However, only the low
32-bits are actually used, so we want to treat it as a 32-bit quantity
when manipulating its bits to avoid extra load/stores on 32-bit.  This
patch replaces the current definition with a structure of two 32-bit
quantities (pad and val), to clarify things as much as is possible.
The 'val' field is used when manipulating bits, the structure itself
is used when obtaining the address for loading/unloading the value
from the FPU.

While we're at it, consolidate the 4 (!) almost identical versions of
cvt_fd() and cvt_df() (arch/ppc/kernel/misc.S,
arch/ppc64/kernel/misc.S, arch/powerpc/kernel/misc_32.S,
arch/powerpc/kernel/misc_64.S) into a single version in fpu.S.  The
new version takes a pointer to thread_struct and applies the correct
offset itself, rather than a pointer to the fpscr field itself, again
to avoid confusion as to which is the correct field to use.

Finally, this patch makes ARCH=ppc64 also use the consolidated fpu.S
code, which it previously did not.

Built for G5 (ARCH=ppc64 and ARCH=powerpc), 32-bit powermac (ARCH=ppc
and ARCH=powerpc) and Walnut (ARCH=ppc, CONFIG_MATH_EMULATION=y).
Booted on G5 (ARCH=powerpc) and things which previously fell over no
longer do.
Signed-off-by: NDavid Gibson <dwg@au1.ibm.com>
Signed-off-by: NPaul Mackerras <paulus@samba.org>
      25c8a78b
    • S
      [PATCH] powerpc: merge scatterlist.h · 89edce0b
      由 Stephen Rothwell 提交于 
      This depends on the 64bit dma_addr_t patch.
Signed-off-by: NStephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: NPaul Mackerras <paulus@samba.org>
      89edce0b
  5. 26 10月, 2005 1 次提交
  7. 21 10月, 2005 1 次提交
    • D
      [PATCH] powerpc: Merge thread_info.h · 6cb7bfeb
      由 David Gibson 提交于 
      Merge ppc32 and ppc64 versions of thread_info.h.  They were pretty
similar already, the chief changes are:

	- Instead of inline asm to implement current_thread_info(),
which needs to be different for ppc32 and ppc64, we use C with an
asm("r1") register variable.  gcc turns it into the same asm as we
used to have for both platforms.
	- We replace ppc32's 'local_flags' with the ppc64
'syscall_noerror' field.  The noerror flag was in fact the only thing
in the local_flags field anyway, so the ppc64 approach is simpler, and
means we only need a load-immediate/store instead of load/mask/store
when clearing the flag.
	- In readiness for 64k pages, when THREAD_SIZE will be less
than a page, ppc64 used kmalloc() rather than get_free_pages() to
allocate the kernel stack.  With this patch we do the same for ppc32,
since there's no strong reason not to.
	- For ppc64, we no longer export THREAD_SHIFT and THREAD_SIZE
via asm-offsets, thread_info.h can now be safely included in asm, as
on ppc32.

Built and booted on G4 Powerbook (ARCH=ppc and ARCH=powerpc) and
Power5 (ARCH=ppc64 and ARCH=powerpc).
Signed-off-by: NDavid Gibson <david@gibson.dropbear.id.au>
Signed-off-by: NPaul Mackerras <paulus@samba.org>
      6cb7bfeb
  9. 20 10月, 2005 5 次提交
  11. 19 10月, 2005 1 次提交
  13. 17 10月, 2005 2 次提交
  15. 12 10月, 2005 1 次提交
    • B
      [PATCH] ppc32: Tell userland about lack of standard TB · d8e998c5
      由 Benjamin Herrenschmidt 提交于 
      Glibc is about to get some new high precision timer stuff that relies on
the standard timebase of the PPC architecture.

However, some (rare & old) CPUs do not have such timebase and it is a
bit annoying to have your stuff just crash because you are running on
the wrong CPU...

This exposes to userland a CPU feature bit that tells that the current
processor doesn't have a standard timebase.  It's negative logic so that
glibc will still "just work" on older kernels (it will just be unhappy
on those old CPUs but that doesn't really matter as distro tend to
update glibc & kernel at the same time).
Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
      d8e998c5
  17. 11 10月, 2005 4 次提交
  19. 10 10月, 2005 4 次提交
  21. 09 10月, 2005 1 次提交
  23. 06 10月, 2005 2 次提交
  25. 01 10月, 2005 1 次提交
  27. 30 9月, 2005 1 次提交
  29. 29 9月, 2005 1 次提交
  31. 28 9月, 2005 2 次提交
  33. 27 9月, 2005 1 次提交
  35. 26 9月, 2005 1 次提交
    • P
      powerpc: Merge enough to start building in arch/powerpc. · 14cf11af
      由 Paul Mackerras 提交于 
      This creates the directory structure under arch/powerpc and a bunch
of Kconfig files.  It does a first-cut merge of arch/powerpc/mm,
arch/powerpc/lib and arch/powerpc/platforms/powermac.  This is enough
to build a 32-bit powermac kernel with ARCH=powerpc.

For now we are getting some unmerged files from arch/ppc/kernel and
arch/ppc/syslib, or arch/ppc64/kernel.  This makes some minor changes
to files in those directories and files outside arch/powerpc.

The boot directory is still not merged.  That's going to be interesting.
Signed-off-by: NPaul Mackerras <paulus@samba.org>
      14cf11af
  37. 25 9月, 2005 4 次提交