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4 Commits

Author SHA1 Message Date
Maciej W. Rozycki
65ae8d2621 MIPS16e2: Provide feature overrides for non-MIPS16 systems 
Hardcode the absence of the MIPS16e2 ASE for all the systems that do so
for the MIPS16 ASE already, providing for code to be optimized away.

Signed-off-by: Maciej W. Rozycki <macro@imgtec.com>
Reviewed-by: James Hogan <james.hogan@imgtec.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/16097/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
 2017-07-11 14:13:06 +02:00
Maciej W. Rozycki
bc4f12e639 MIPS: DEC: Update CPU overrides 
Update CPU overrides for the DEC port with the recent additions, shaving
off some effectively dead code:

   text    data      bss      dec     hex filename
5586952  233132  5990368 11810452  b43694 vmlinux.32-old
5581248  233140  5990368 11804756  b42054 vmlinux.32-new

   text    data      bss      dec     hex filename
6036936  356648 10756544 17150128 105b0b0 vmlinux.64-old
6029896  360752 10756544 17147192 105a538 vmlinux.64-new

The data size increase is due to the special alignment requirement of
`init_thread_union' aka `.data..init_task' moving it up to the nearest
page boundary and making the amount of padding at its front rely on how
far within a page text ends.

Signed-off-by: Maciej W. Rozycki <macro@linux-mips.org>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/10197/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
 2015-06-21 21:52:44 +02:00
Maciej W. Rozycki
18a2c2c6b9 MIPS: Correct `nofpu' non-functionality 
The `cpu_has_fpu' feature flag must not be hardcoded to 1 or the `nofpu'
kernel option will be ignored.  Remove any such overrides and add a
cautionary note.  Hardcoding to 0 is fine for FPU-less platforms.

Signed-off-by: Maciej W. Rozycki <macro@linux-mips.org>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/9694/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
 2015-04-08 01:09:49 +02:00
Maciej W. Rozycki
33afab80f0 MIPS: DECstation CPU feature overrides 
Signed-off-by: Maciej W. Rozycki <macro@linux-mips.org>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/5877/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
 2013-10-29 21:24:46 +01:00