Commit Graph

1635 Commits

Author SHA1 Message Date
marcel
931f52388d Support booting non FDT-capable loaders:
1.  Allow embedding the FDT into the kernel, just like PowerPC/book-E.
2.  If the loader passes us a pointer to the bootinfo structure, save
    it and use it to fill in the gaps (e.g. bus frequencies, etc).
2011-01-17 23:54:50 +00:00
jkim
ea861abf2a Add reader/writer lock around mem_range_attr_get() and mem_range_attr_set().
Compile sys/dev/mem/memutil.c for all supported platforms and remove now
unnecessary dev_mem_md_init().  Consistently define mem_range_softc from
mem.c for all platforms.  Add missing #include guards for machine/memdev.h
and sys/memrange.h.  Clean up some nearby style(9) nits.

MFC after:	1 month
2011-01-17 22:58:28 +00:00
marcel
bb7c654bae Don't redefine MODINFOMD_BOOTINFO as MODINFOMD_DTBP. This
breaks support for older loaders. Add MODINFOMD_DTBP as
a new tag instead.
2011-01-15 20:18:08 +00:00
andreast
3e024e1110 Remove unused variables. Spotted by a cppcheck
(devel/cppcheck, http://sourceforge.net/projects/cppcheck) run.

Approved by: nwhitehorn (mentor)
2011-01-15 19:16:05 +00:00
kib
a8f14f7c92 Enable shared page for the signal trampolines on PowerPC.
Reviewed and tested by:	nwhitehorn
2011-01-14 11:36:44 +00:00
nwhitehorn
612c23ffbb Fix handling of NX pages on capable CPUs. Thanks to kib for prodding me
in the right direction.
2011-01-13 04:37:48 +00:00
andreast
a13f07741c Add new functions, fcu_fan_set_pwm and fcu_fan_get_pwm, to set and get
the pwm values. We can now set the fan's speed of a PWM controlled fan
with % numbers between 30 and 100 % instead of trying to model a
% number based on rpm.
The fcu chip offers both, the dutycycle and the rpm value of the PWM
controlled fans. I added the rpm value to the list of information
available via sysctl(8).

Tested by: Paul Mather <paul at gromit dlib vt edu>

Approved by: nwhitehorn (mentor)
2011-01-11 21:18:29 +00:00
jhb
c17f46e472 Remove unneeded includes of <sys/linker_set.h>. Other headers that use
it internally contain nested includes.

Reviewed by:	bde
2011-01-11 13:59:06 +00:00
kib
4f8260e700 Move repeated MAXSLP definition from machine/vmparam.h to sys/vmmeter.h.
Update the outdated comments describing MAXSLP and the process
selection algorithm for swap out.

Comments wording and reviewed by:	alc
2011-01-09 12:50:44 +00:00
das
b0da71a682 We don't support any floating point types larger than double on
powerpc, so DECIMAL_DIG should be 17.
2011-01-09 06:05:22 +00:00
tijl
5003981953 White space changes to align comments. The mips and powerpc _inttypes.h
are now exactly the same.

Approved by:	kib (mentor)
2011-01-08 18:02:46 +00:00
tijl
4bdd0bc803 Rename PRIreg helper macro to PRIptr to better reflect its use. Registers
and pointers don't always have the same size, e.g. the __mips_n32 ABI
(ILP32) has 64 bit registers but 32 bit pointers.

On mips introduce PRIptr to fix the format specifier for (u)intptr_t.

Prefix PRI64 and PRIptr with underscores because macro names starting with
PRI[a-zX] are reserved for future use.

Approved by:	kib (mentor)
2011-01-08 18:00:19 +00:00
tijl
89281909e1 On mixed 32/64 bit architectures (mips, powerpc) use __LP64__ rather than
architecture macros (__mips_n64, __powerpc64__) when 64 bit types (and
corresponding macros) are different from 32 bit. [1]

Correct the type of INT64_MIN, INT64_MAX and UINT64_MAX.

Define (U)INTMAX_C as an alias for (U)INT64_C matching the type definition
for (u)intmax_t. Do this on all architectures for consistency.

Suggested by:	bde [1]
Approved by:	kib (mentor)
2011-01-08 12:43:05 +00:00
tijl
61d89c0b21 On 32 bit architectures define (u)int64_t as (unsigned) long long instead
of (unsigned) int __attribute__((__mode__(__DI__))). This aligns better
with macros such as (U)INT64_C, (U)INT64_MAX, etc. which assume (u)int64_t
has type (unsigned) long long.

The mode attribute was used because long long wasn't standardised until
C99. Nowadays compilers should support long long and use of the mode
attribute is discouraged according to GCC Internals documentation.

The type definition has to be marked with __extension__ to support
compilation with "-std=c89 -pedantic".

Discussed with:	bde
Approved by:	kib (mentor)
2011-01-08 11:47:55 +00:00
tijl
af03e997ba Fix types of some values in machine/_limits.h.
On some architectures UCHAR_MAX and USHRT_MAX had type unsigned int.
However, lacking integer suffixes for types smaller than int, their type
should correspond to that of an object of type unsigned char (or short)
when used in an expression with objects of type int. In that case unsigned
char (short) are promoted to int (i.e. signed) so the type of UCHAR_MAX and
USHRT_MAX should also be int.

Where MIN/MAX constants implicitly have the correct type the suffix has
been removed.

While here, correct some comments.

Reviewed by:	bde
Approved by:	kib (mentor)
2011-01-08 11:13:34 +00:00
tijl
69f9492737 Remove unused support for 64 bit long on 32 bit architectures.
It was used mainly to discover and fix some 64-bit portability problems
before 64-bit arches were widely available.

Discussed with:	bde
Approved by:	kib (mentor)
2011-01-07 22:57:31 +00:00
kib
ed862725de Add AT_STACKPROT elf aux vector. Will be used to inform rtld about the
initial stack protection set by the kernel image activator.
2011-01-07 14:22:34 +00:00
jhb
ae4deb7aad Remove bogus usage of INTR_FAST. "Fast" interrupts are now indicated by
registering a filter handler rather than a threaded handler.  Also remove
a bogus use of INTR_MPSAFE for a filter.
2011-01-06 21:08:06 +00:00
andreast
b3910b1de1 Remove unused variables. Spotted by a cppcheck
(devel/cppcheck, http://sourceforge.net/projects/cppcheck) run.

Approved by: nwhitehorn (mentor)
2011-01-06 20:19:01 +00:00
nwhitehorn
363ba22ed3 Unbreak the LINT build. PS3 kernels can only be built 64-bit, and LINT is
built for both architectures. We need a better solution here.
2011-01-06 14:12:24 +00:00
nwhitehorn
c2aa4fc0eb Import support for the Sony Playstation 3 using the OtherOS feature
available on firmwares 3.15 and earlier.

Caveats: Support for the internal SATA controller is currently missing,
as is support for framebuffer resolutions other than 720x480. These
deficiencies will be remedied soon.

Special thanks to Peter Grehan for providing the hardware that made this
port possible, and thanks to Geoff Levand of Sony Computer Entertainment
for advice on the LV1 hypervisor.
2011-01-06 04:12:29 +00:00
andreast
caa5bbfa02 Fix null string handling in ofw_real_nextprop function. Pass the right
length to ofw_real_map in case of a null string.
This makes ofwdump(8) work correctly when trying to print all properties
with ofwdump -p.

Approved by:	nwhitehorn (mentor)
2011-01-05 21:38:02 +00:00
nwhitehorn
df478abcd2 Only keep track of PTE validity statistics for pages not locked in the
table. The 'locked' attribute is used to circumvent the regular page table
locking for some special pages, with the result that including locked pages
here causes races when updating the stats.
2010-12-28 17:02:15 +00:00
nwhitehorn
84fc9a4631 Memory can be laid out with large gaps on 64-bit PowerPC, so switch to
VM_PHYSSEG_SPARSE.
2010-12-20 14:25:01 +00:00
nwhitehorn
708cd7af18 Garbage-collect unused variable. 2010-12-19 16:07:53 +00:00
nwhitehorn
b636c3db31 Add some isync()s related to the 64-bit MMU scratch page to avoid race
conditions on its invalidation.
2010-12-11 20:29:52 +00:00
nwhitehorn
40fdbfec53 Switch which software-reserved bit is used to designate a locked PTE
to correspond to the definition used by the PAPR spec so that its PTE
insertion algorithm will properly respect it.
2010-12-05 01:17:53 +00:00
nwhitehorn
0ff0fd520d Add an abstraction layer to the 64-bit AIM MMU's page table manipulation
logic to support modifying the page table through a hypervisor. This
uses KOBJ inheritance to provide subclasses of the base 64-bit AIM MMU
class with additional methods for page table manipulation.

Many thanks to Peter Grehan for suggesting this design and implementing
the MMU KOBJ inheritance mechanism.
2010-12-04 02:42:52 +00:00
nwhitehorn
c53b6b8773 Provide a simple IOMMU framework on PowerPC, which is required to support
PPC hypervisors.
2010-12-03 16:37:37 +00:00
brucec
6e3faf1602 Revert r216134. This checkin broke platforms where bus_space are macros:
they need to be a single statement, and do { } while (0) doesn't work in this
situation so revert until a solution can be devised.
2010-12-03 07:09:23 +00:00
brucec
dc1c4b9270 Disallow passing in a count of zero bytes to the bus_space(9) functions.
Passing a count of zero on i386 and amd64 for [I386|AMD64]_BUS_SPACE_MEM
causes a crash/hang since the 'loop' instruction decrements the counter
before checking if it's zero.

PR:	kern/80980
Discussed with:	jhb
2010-12-02 22:19:30 +00:00
nwhitehorn
058617f3a0 Define bswap macros for constants to allow the compiler to pre-compute
byte-swapped versions of compile-time constants. This allows use of
bswap() and htole*() in initializers, which is required to cross-build
btxld.

Obtained from:	sparc64
2010-12-02 15:10:27 +00:00
marius
768c79cd77 Several chipset drivers alter parameters relevant for the DMA tag creation,
i.e. alignment, max_address, max_iosize and segsize (only max_address is
thought to have an negative impact regarding this issue though), after
calling ata_dmainit() either directly or indirectly so these values have
no effect or at least no effect on the DMA tags and the defaults are used
for the latter instead. So change the drivers to set these parameters
up-front and ata_dmainit() to honor them.

This file was missed in r216013.

Submitted by:	nwhitehorn
2010-11-30 20:54:14 +00:00
dim
fb307d7d1d After some off-list discussion, revert a number of changes to the
DPCPU_DEFINE and VNET_DEFINE macros, as these cause problems for various
people working on the affected files.  A better long-term solution is
still being considered.  This reversal may give some modules empty
set_pcpu or set_vnet sections, but these are harmless.

Changes reverted:

------------------------------------------------------------------------
r215318 | dim | 2010-11-14 21:40:55 +0100 (Sun, 14 Nov 2010) | 4 lines

Instead of unconditionally emitting .globl's for the __start_set_xxx and
__stop_set_xxx symbols, only emit them when the set_vnet or set_pcpu
sections are actually defined.

------------------------------------------------------------------------
r215317 | dim | 2010-11-14 21:38:11 +0100 (Sun, 14 Nov 2010) | 3 lines

Apply the STATIC_VNET_DEFINE and STATIC_DPCPU_DEFINE macros throughout
the tree.

------------------------------------------------------------------------
r215316 | dim | 2010-11-14 21:23:02 +0100 (Sun, 14 Nov 2010) | 2 lines

Add macros to define static instances of VNET_DEFINE and DPCPU_DEFINE.
2010-11-22 19:32:54 +00:00
dim
fda4020a88 Apply the STATIC_VNET_DEFINE and STATIC_DPCPU_DEFINE macros throughout
the tree.
2010-11-14 20:38:11 +00:00
nwhitehorn
2666f52107 Partially revert r215182. There appears to be a silicon bug on the 970
that causes AP bringup to fail if some of the Cell HID-register code
is anywhere in the instruction stream. Pending a better solution, cache
performance on SMP Cell systems running without a hypervisor will be
suboptimal.
2010-11-12 20:26:34 +00:00
nwhitehorn
a1ec11b11a Add CPU support code for the IBM Cell Broadband Engine. 2010-11-12 15:20:10 +00:00
nwhitehorn
358939cf28 Remove use of a separate ofw_pmap on 32-bit CPUs. Many Open Firmware
mappings need to end up in the kernel anyway since the kernel begins
executing in OF context. Separating them adds needless complexity,
especially since the powerpc64 and mmu_oea64 code gave up on it a long
time ago.

As a side effect, the PPC ofw_machdep code is no longer AIM-specific,
so move it to powerpc/ofw.
2010-11-12 05:12:38 +00:00
nwhitehorn
81f6e90db2 Remove or conditionalize some hypervisor-unfriendly instruction sequences. 2010-11-12 04:22:00 +00:00
nwhitehorn
b5495356b2 Add some platform KOBJ extensions and continue integrating PowerPC
hypervisor infrastructure support:
- Fix coexistence of multiple platform modules in the same kernel
- Allow platform modules to provide an SMP topology
- PowerPC hypervisors limit the amount of memory accessible in real mode.
  Allow the platform modules to specify the maximum real-mode address,
  and modify the bits of the kernel that need to allocate
  real-mode-accessible buffers to respect this limits.
2010-11-12 04:18:19 +00:00
nwhitehorn
3d8843cae1 Fix an error in r215067. An existing /chosen/mmu but missing translations
property just means we shouldn't add any translations, not that we should
panic.
2010-11-12 04:13:48 +00:00
nwhitehorn
b60b3b7753 Centralize CPU idle routines into powerpc/cpu.c and use the same
cpu_idle_hook mechanism that x86 uses for overriding the idle routine.
This is required for supporting ilding the CPU under PowerPC hypervisors.
2010-11-12 03:43:22 +00:00
raj
c5bcf55d35 Fix typo in the comment. 2010-11-11 13:46:28 +00:00
raj
2222bc72a4 Use local TLB_UNLOCKED marker instead of MTX_UNOWNED for Book-E PowerPC trap
routines.

This unbreaks Book-E build after the recent machine/mutex.h removal.

While there move tlb_*lock() prototypes to machine/tlb.h.

Submitted by:	jhb
2010-11-11 13:35:23 +00:00
nwhitehorn
c4343a6448 Add support for the IMISS, DLMISS, and DSMISS traps required to run
FreeBSD on a G2 core.

PR:		powerpc/111296
Submitted by:	Andrew Turner
2010-11-11 02:40:00 +00:00
nwhitehorn
7da22d0dfc Entering deep nap mode on the 970MP requires that both MSR[NAP] and
MSR[DEEPNAP] be set, not just MSR[DEEPNAP]. Fixing this reduces the idle
temperature of my CPUs from 57 to 38 degrees and makes one-shot timer
mode work properly.

Hint from:	mav
MFC after:	4 days
2010-11-10 20:28:10 +00:00
nwhitehorn
a02271c20b Disabling CPU NAP modes during SMU commands is a hack needed only on U3
systems. Don't use it on non-U3 systems to allow cpu_idle() to work
correctly.
2010-11-10 20:09:05 +00:00
nwhitehorn
023e6598a8 Make AIM early-boot code function correctly without Open Firmware. 2010-11-09 23:53:47 +00:00
jhb
acd72eb169 - Remove <machine/mutex.h>. Most of the headers were empty, and the
contents of the ones that were not empty were stale and unused.
- Now that <machine/mutex.h> no longer exists, there is no need to allow it
  to override various helper macros in <sys/mutex.h>.
- Rename various helper macros for low-level operations on mutexes to live
  in the _mtx_* or __mtx_* namespaces.  While here, change the names to more
  closely match the real API functions they are backing.
- Drop support for including <sys/mutex.h> in assembly source files.

Suggested by:	bde (1, 2)
2010-11-09 20:46:41 +00:00
jhb
c016e5df49 Remove unused includes of <sys/mutex.h> and <machine/mutex.h>. 2010-11-09 20:41:10 +00:00