linux-toradex.git/arch/sparc/kernel/viohs.c, branch v4.10 Linux kernel for Apalis and Colibri modules sparc: VIO protocol version 1.6 2014-09-30T21:17:08+00:00 David L Stevens david.stevens@oracle.com 2014-09-29T23:47:59+00:00 163a4e7473061388bba0899a1a063bae44e1715a Add VIO protocol version 1.6 interfaces. Signed-off-by: David L Stevens <david.stevens@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net> 
Add VIO protocol version 1.6 interfaces.

Signed-off-by: David L Stevens <david.stevens@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
sparc64: Move request_irq() from ldc_bind() to ldc_alloc() 2014-09-17T01:31:31+00:00 Sowmini Varadhan sowmini.varadhan@oracle.com 2014-09-16T15:37:08+00:00 c21c4ab0d6921f7160a43216fa6973b5924de561 The request_irq() needs to be done from ldc_alloc() to avoid the following (caught by lockdep) [00000000004a0738] __might_sleep+0xf8/0x120 [000000000058bea4] kmem_cache_alloc_trace+0x184/0x2c0 [00000000004faf80] request_threaded_irq+0x80/0x160 [000000000044f71c] ldc_bind+0x7c/0x220 [0000000000452454] vio_port_up+0x54/0xe0 [00000000101f6778] probe_disk+0x38/0x220 [sunvdc] [00000000101f6b8c] vdc_port_probe+0x22c/0x300 [sunvdc] [0000000000451a88] vio_device_probe+0x48/0x60 [000000000074c56c] really_probe+0x6c/0x300 [000000000074c83c] driver_probe_device+0x3c/0xa0 [000000000074c92c] __driver_attach+0x8c/0xa0 [000000000074a6ec] bus_for_each_dev+0x6c/0xa0 [000000000074c1dc] driver_attach+0x1c/0x40 [000000000074b0fc] bus_add_driver+0xbc/0x280 Signed-off-by: Sowmini Varadhan <sowmini.varadhan@oracle.com> Acked-by: Dwight Engen <dwight.engen@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net> 
The request_irq() needs to be done from ldc_alloc()
to avoid the following (caught by lockdep)

 [00000000004a0738] __might_sleep+0xf8/0x120
 [000000000058bea4] kmem_cache_alloc_trace+0x184/0x2c0
 [00000000004faf80] request_threaded_irq+0x80/0x160
 [000000000044f71c] ldc_bind+0x7c/0x220
 [0000000000452454] vio_port_up+0x54/0xe0
 [00000000101f6778] probe_disk+0x38/0x220 [sunvdc]
 [00000000101f6b8c] vdc_port_probe+0x22c/0x300 [sunvdc]
 [0000000000451a88] vio_device_probe+0x48/0x60
 [000000000074c56c] really_probe+0x6c/0x300
 [000000000074c83c] driver_probe_device+0x3c/0xa0
 [000000000074c92c] __driver_attach+0x8c/0xa0
 [000000000074a6ec] bus_for_each_dev+0x6c/0xa0
 [000000000074c1dc] driver_attach+0x1c/0x40
 [000000000074b0fc] bus_add_driver+0xbc/0x280

Signed-off-by: Sowmini Varadhan <sowmini.varadhan@oracle.com>
Acked-by: Dwight Engen <dwight.engen@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
sparc: move symbol exporters to use export.h not module.h 2011-10-31T23:30:53+00:00 Paul Gortmaker paul.gortmaker@windriver.com 2011-07-22T17:18:16+00:00 066bcaca51946c8305e3d637a795e8ccf8dbd3cf Many of the core sparc kernel files are not modules, but just including module.h for exporting symbols. Now these files can use the lighter footprint export.h for this role. Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com> 
Many of the core sparc kernel files are not modules, but just
including module.h for exporting symbols.  Now these files can
use the lighter footprint export.h for this role.

Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
sparc: Remove unnecessary semicolons 2011-06-07T23:06:34+00:00 Joe Perches joe@perches.com 2011-06-03T14:45:23+00:00 6cb79b3f3ba2b14590cac02ee13ab7410b6225ed Semicolons are not necessary after switch/while/for/if braces so remove them. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: David S. Miller <davem@davemloft.net> 
Semicolons are not necessary after switch/while/for/if braces
so remove them.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
sparc64: refactor code in viohs.c 2009-01-06T20:46:46+00:00 Sam Ravnborg sam@ravnborg.org 2009-01-06T20:46:46+00:00 2eac5a0d3a84acd267ff7aac5b45c020bfcb158c The sparc64 allmodconfig build broke due to enabling of the branch_tracer that does some very clever things with all if conditions. This caused my gcc 3.4.5 to be so confused that it emitted a warning: arch/sparc/kernel/viohs.c: In function `vio_control_pkt_engine': arch/sparc/kernel/viohs.c:335: warning: 'nver' might be used uninitialized in this function And with -Werror this broke the build. Refactor code so it: 1) becomes more readable 2) no longer emit a warning with the branch_tracer enabled Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: David S. Miller <davem@davemloft.net> 
The sparc64 allmodconfig build broke due to enabling of the
branch_tracer that does some very clever things with
all if conditions. This caused my gcc 3.4.5 to be so confused that
it emitted a warning:

arch/sparc/kernel/viohs.c: In function `vio_control_pkt_engine':
arch/sparc/kernel/viohs.c:335: warning: 'nver' might be used uninitialized in this function

And with -Werror this broke the build.

Refactor code so it:
1) becomes more readable
2) no longer emit a warning with the branch_tracer enabled

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
sparc,sparc64: unify kernel/ 2008-12-04T17:17:21+00:00 Sam Ravnborg sam@ravnborg.org 2008-12-03T11:11:52+00:00 a88b5ba8bd8ac18aad65ee6c6a254e2e74876db3 o Move all files from sparc64/kernel/ to sparc/kernel - rename as appropriate o Update sparc/Makefile to the changes o Update sparc/kernel/Makefile to include the sparc64 files NOTE: This commit changes link order on sparc64! Link order had to change for either of sparc32 and sparc64. And assuming sparc64 see more testing than sparc32 change link order on sparc64 where issues will be caught faster. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: David S. Miller <davem@davemloft.net> 
o Move all files from sparc64/kernel/ to sparc/kernel
  - rename as appropriate
o Update sparc/Makefile to the changes
o Update sparc/kernel/Makefile to include the sparc64 files

NOTE: This commit changes link order on sparc64!

Link order had to change for either of sparc32 and sparc64.
And assuming sparc64 see more testing than sparc32 change link
order on sparc64 where issues will be caught faster.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: David S. Miller <davem@davemloft.net>