Commits · a33532af18e7c0c775cf70a15dbc5602d371e880 · nexedi / linux

04 Oct, 2016 40 commits

powerpc/64s: Use a single macro for both parts of OOL exception · a33532af

Nicholas Piggin authored Sep 21, 2016

Simple substitution. This is possible now that both parts of the OOL
initial handler get linked into their correct location.
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>

a33532af

powerpc/64s: Move __replay_interrupt function below handlers · 0f0c6ca1

Nicholas Piggin authored Sep 21, 2016

This is not an exception handler as such, it's called from
local_irq_enable(), not exception entry.

Also clean up some now redundant comments at the end of the
consolidation series.
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>

0f0c6ca1

powerpc/64s: Consolidate CBE Thermal 0x1800 interrupt · 3965f8ab

Nicholas Piggin authored Sep 21, 2016

Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>

3965f8ab

powerpc/64s: Consolidate Altivec 0x1700 interrupt · b51c079e

Nicholas Piggin authored Sep 21, 2016

Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>

b51c079e

powerpc/64s: Consolidate Debug 0x1600 interrupt · 69a79344

Nicholas Piggin authored Sep 21, 2016

Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>

69a79344

powerpc/64s: Consolidate Softpatch 0x1500 interrupt · d7e89849

Nicholas Piggin authored Sep 21, 2016

Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>

d7e89849

powerpc/64s: Consolidate Instruction Breakpoint 0x1300 interrupt · 4e96dbbf
Nicholas Piggin authored Sep 21, 2016
```
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
```
4e96dbbf
powerpc/64s: Consolidate CBE System Error 0x1200 interrupt · ff1b3206
Nicholas Piggin authored Sep 21, 2016
```
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
```
ff1b3206
powerpc/64s: Consolidate Reserved 0xfa0-0x1200 interrupts · e46b964c
Nicholas Piggin authored Sep 21, 2016
```
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
```
e46b964c
powerpc/64s: Consolidate Hypervisor Facility Unavailable 0xf80 interrupt · 14b0072c
Nicholas Piggin authored Sep 21, 2016
```
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
```
14b0072c
powerpc/64s: Consolidate Facility Unavailable 0xf60 interrupt · 1134713c
Nicholas Piggin authored Sep 21, 2016
```
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
```
1134713c
powerpc/64s: Consolidate VSX Unavailable 0xf40 interrupt · 792cbddd
Nicholas Piggin authored Sep 21, 2016
```
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
```
792cbddd
powerpc/64s: Consolidate Vector Unavailable 0xf20 interrupt · d1a0ca9c
Nicholas Piggin authored Sep 21, 2016
```
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
```
d1a0ca9c
powerpc/64s: Consolidate Performance Monitor 0xf00 interrupt · b1c7f150
Nicholas Piggin authored Sep 21, 2016
```
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
```
b1c7f150
powerpc/64s: Consolidate Reserved 0xec0, 0xee0 interrupts · bda7fea2
Nicholas Piggin authored Sep 21, 2016
```
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
```
bda7fea2
powerpc/64s: Consolidate Hypervisor Virtualization 0xea0 interrupt · 74408776
Nicholas Piggin authored Sep 21, 2016
```
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
```
74408776
powerpc/64s: Consolidate Directed Hypervisor Doorbell 0xe80 interrupt · 9bcb81bf
Nicholas Piggin authored Sep 21, 2016
```
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
```
9bcb81bf
powerpc/64s: Consolidate Hypervisor Maintenance 0xe60 interrupt · 62f9b03b
Nicholas Piggin authored Sep 21, 2016
```
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
```
62f9b03b
powerpc/64s: Consolidate Hypervisor Emulation Assistance 0xe40 interrupt · 031b4026
Nicholas Piggin authored Sep 21, 2016
```
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
```
031b4026
powerpc/64s: Consolidate Hypervisor Instruction Storage 0xe20 interrupt · 82517cab
Nicholas Piggin authored Sep 21, 2016
```
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
```
82517cab
powerpc/64s: Consolidate Hypervisor Data Storage 0xe00 interrupt · f5c32c1d
Nicholas Piggin authored Sep 21, 2016
```
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
```
f5c32c1d

powerpc/64s: Consolidate Trace 0xd00 interrupt · bc6675c6

Nicholas Piggin authored Sep 21, 2016

Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>

bc6675c6

powerpc/64s: Consolidate System Call 0xc00 interrupt · d807ad37

Nicholas Piggin authored Sep 21, 2016

Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>

d807ad37

powerpc/64s: Consolidate Reserved 0xb00 interrupt · 341215dc

Nicholas Piggin authored Sep 21, 2016

Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>

341215dc

powerpc/64s: Consolidate Directed Privileged Doorbell 0xa00 interrupt · ca243163
Nicholas Piggin authored Sep 21, 2016
```
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
```
ca243163
powerpc/64s: Consolidate Hypervisor Decrementer 0x980 interrupt · facc6d74
Nicholas Piggin authored Sep 21, 2016
```
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
```
facc6d74

powerpc/64s: Consolidate Decrementer 0x900 interrupt · 39c0da57

Nicholas Piggin authored Sep 21, 2016

Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>

39c0da57

powerpc/64s: Consolidate FP Unavailable 0x800 interrupt · c78d9b97
Nicholas Piggin authored Sep 21, 2016
```
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
```
c78d9b97

powerpc/64s: Consolidate Program 0x700 interrupt · 11e87346

Nicholas Piggin authored Sep 21, 2016

Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>

11e87346

powerpc/64s: Consolidate Alignment 0x600 interrupt · f9aa6714

Nicholas Piggin authored Sep 21, 2016

Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>

f9aa6714

powerpc/64s: Consolidate External 0x500 interrupt · c138e588

Nicholas Piggin authored Sep 21, 2016

Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>

c138e588

powerpc/64s: Consolidate Instruction Segment 0x480 interrupt · 8d04631a
Nicholas Piggin authored Sep 21, 2016
```
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
```
8d04631a
powerpc/64s: Consolidate Instruction Storage 0x400 interrupt · 27ce77df
Nicholas Piggin authored Sep 21, 2016
```
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
```
27ce77df

powerpc/64s: Consolidate Data Segment 0x380 interrupt · 2b9af6e4

Nicholas Piggin authored Sep 21, 2016

Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>

2b9af6e4

powerpc/64s: Consolidate Data Storage 0x300 interrupt · 80795e6c

Nicholas Piggin authored Sep 21, 2016

Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>

80795e6c

powerpc/64s: Consolidate Machine Check 0x200 interrupt · afcf0095

Nicholas Piggin authored Sep 21, 2016

Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>

afcf0095

powerpc/64s: Consolidate System Reset 0x100 interrupt · 582baf44

Nicholas Piggin authored Sep 21, 2016

Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>

582baf44

powerpc: Use gas sections for arranging exception vectors · 57f26649

Nicholas Piggin authored Sep 28, 2016

Use assembler sections of fixed size and location to arrange the 64-bit
Book3S exception vector code (64-bit Book3E also uses it in head_64.S
for 0x0..0x100).

This allows better flexibility in arranging exception code and hiding
unimportant details behind macros.

Gas sections can be a bit painful to use this way, mainly because the
assembler does not know where they will be finally linked. Taking
absolute addresses requires a bit of trickery for example, but it can
be hidden behind macros for the most part.

Generated code is mostly the same except locations, offsets, alignments.

The "+ 0x2" is only required for the trap number / kvm exit number,
which gets loaded as a constant into a register.

Previously, code also used + 0x2 for label names, but we changed to
using "H" to distinguish HV case for that. Remove the last vestiges
of that.

__after_prom_start is taking absolute address of a label in another
fixed section. Newer toolchains seemed to compile this okay, but older
ones do not. FIXED_SYMBOL_ABS_ADDR is more foolproof, it just takes an
additional line to define.
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>

57f26649

powerpc/64: Change the way relocation copy is calculated · 573819e3

Nicholas Piggin authored Sep 28, 2016

With a subsequent patch to put text into different sections,
(_end - _stext) can no longer be computed at link time to determine
the end of the copy. Instead, calculate it at runtime with
(copy_to_here - _stext) + (_end - copy_to_here).
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>

573819e3

powerpc/64s: Consolidate exception handler alignment · be642c34

Nicholas Piggin authored Sep 21, 2016

Move exception handler alignment directives into the head-64.h macros,
beause they will no longer work in-place after the next patch. This
slightly changes functions that have alignments applied and therefore
code generation, which is why it was not done initially (see earlier
patch).
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>

be642c34