Commit graph

2483 commits

Author SHA1 Message Date
Gabe Black
37a437893e System: Push boot_cpu_frequency down into the subclasses that actually use it.
This parameter depends on a number of coincidences to work properly. First,
there must be an array assigned to system called "cpu" even though there's no
parameter called that. Second, the items in the "cpu" array have to have a
"clock" parameter which has a "frequency" member. This is true of the normal
CPUs, but isn't true of the memory tester CPUs. This happened to work before
because the memory tester CPUs were only used in SE mode where this parameter
was being excluded. Since everything is being pulled into a common binary,
this won't work any more. Since the boot_cpu_frequency parameter is only used
by Alpha's Linux System object (and Mips's through copy and paste), the
definition of that parameter is moved down to those objects specifically.
2011-10-30 17:38:09 -07:00
Gabe Black
b144f05b53 SE/FS: Remove the last references to FULL_SYSTEM from POWER. 2011-10-30 03:55:24 -07:00
Gabe Black
6dc3cedc4e X86: Build the same files in SE and FS. 2011-10-30 03:06:40 -07:00
Gabe Black
1d8822a364 X86: Get rid of more uses of FULL_SYSTEM. 2011-10-30 00:33:02 -07:00
Gabe Black
facb40f3ff SE/FS: Make getProcessPtr available in both modes, and get rid of FULL_SYSTEMs. 2011-10-30 00:33:02 -07:00
Gabe Black
bcf664e5f9 SE/FS: Turn on the page table class in FS. 2011-10-16 05:06:40 -07:00
Gabe Black
79ba4b6595 SPARC: Build vtophys into SE mode. 2011-10-16 05:06:39 -07:00
Gabe Black
5ee3f586bf Power: Add a stub implementation for vtophys in SE and FS. 2011-10-16 05:06:39 -07:00
Gabe Black
baae510b56 MIPS: Build vtophys in SE mode. 2011-10-16 05:06:39 -07:00
Gabe Black
1eb459a79e ARM: Build vtophys in SE mode. 2011-10-16 05:06:39 -07:00
Gabe Black
b2af015b97 ARM: Turn on the page table walker on ARM in SE mode. 2011-10-16 05:06:38 -07:00
Gabe Black
dd8fed7387 Alpha: Turn on vtophys in SE mode. 2011-10-16 02:59:53 -07:00
Gabe Black
85ca77d114 X86: Build vtophys in SE mode. 2011-10-13 02:26:21 -07:00
Gabe Black
8adc6781bf X86: Turn on the page table walker in SE mode. 2011-10-13 02:22:23 -07:00
Gabe Black
4b2e5ebead SPARC: Remove the last checks of FULL_SYSTEM. 2011-10-13 01:37:19 -07:00
Gabe Black
6b5ede5e39 SPARC: Narrow the scope of #if FULL_SYSTEM in SPARC's faults. 2011-10-13 01:11:00 -07:00
Gabe Black
afa7a34563 SPARC: Let the TLB have friends in FS mode. 2011-10-10 00:38:57 -07:00
Gabe Black
8eec565d0d SPARC: Turn on handleIprRead and handleIprWrite in SE in SPARC. 2011-10-10 00:31:51 -07:00
Gabe Black
5bab52d56d [mq]: sefssparcregfile.patch 2011-10-09 23:48:27 -07:00
Gabe Black
48b40cff65 Interrupts: Make the IO APIC go get the local APICs.
This is so they don't have to declare themselves to the IO APIC and don't have
to have a pointer to the platform object.
2011-10-09 04:44:02 -07:00
Gabe Black
f338d60930 SE/FS: Build the Interrupt objects in SE mode. 2011-10-09 00:15:50 -07:00
Gabe Black
d368344092 SE/FS: Put platform pointers in fewer objects.
Not all objects need a platform pointer, and having one creates a dependence
on their being a platform object. This change removes the platform pointer to
from the base device object and moves it into subclasses that actually need
it.
2011-10-04 02:26:03 -07:00
Gabe Black
e2dbe59f5d SE/FS: Remove System::platform and Platform::intrFrequency.
In order for a system object to work in SE mode and FS mode, it has to either
always require a platform object even in SE mode, or get rid of the
requirement all together. Making SE mode carry around unnecessary/unused bits
of FS seems less than ideal, so I decided to go with the second option. The
platform pointer in the System class was used for exactly one purpose, a path
for the Alpha Linux system object to get to the real time clock and read its
frequency so that it could short cut the loops_per_jiffy calculation. There
was also a copy and pasted implementation in MIPS, but since it was only there
because it was there in Alpha I still count that as one use.

This change reverses the mechanism that communicates the RTC frequency so that
the Tsunami platform object pushes it up to the AlphaSystem object. This is
slightly less specific than it could be because really only the
AlphaLinuxSystem uses it. Because the intrFrequency function on the Platform
class was no longer necessary (and unimplemented on anything but Alpha) it was
eliminated.

After this change, a platform will need to have a system, but a system won't
have to have a platform.
2011-09-30 00:29:07 -07:00
Gabe Black
91dd72a99a X86: Remove FULL_SYSTEM from the x86 faults. 2011-09-30 00:28:40 -07:00
Gabe Black
51f7a66660 SE/FS: Build the devices in SE mode. 2011-09-30 00:28:33 -07:00
Gabe Black
35e20c7470 SE/FS: Use the new FullSystem constant where possible. 2011-09-30 00:27:16 -07:00
Gabe Black
44ed4849d4 Faults: Replace calls to genMachineCheckFault with M5PanicFault. 2011-09-27 00:24:43 -07:00
Gabe Black
2ed3eef9b0 Faults: Add in generic faults that work like panics, warns, etc.
These faults take varargs to their constructors which they print into a string
and pass to the M5DebugFault base class. They are basically faults wrapped
around panics, faults, warns, and warnonce-es so that they happen only at
commit.
2011-09-27 00:17:09 -07:00
Gabe Black
997cbe1c09 ISA parser: Use '_' instead of '.' to delimit type modifiers on operands.
By using an underscore, the "." is still available and can unambiguously be
used to refer to members of a structure if an operand is a structure, class,
etc. This change mostly just replaces the appropriate "."s with "_"s, but
there were also a few places where the ISA descriptions where handling the
extensions themselves and had their own regular expressions to update. The
regular expressions in the isa parser were updated as well. It also now
looks for one of the defined type extensions specifically after connecting "_"
where before it would look for any sequence of characters after a "."
following an operand name and try to use it as the extension. This helps to
disambiguate cases where a "_" may legitimately be part of an operand name but
not separate the name from the type suffix.

Because leaving the "_" and suffix on the variable name still leaves a valid
C++ identifier and all extensions need to be consistent in a given context, I
considered leaving them on as a breadcrumb that would show what the intended
type was for that operand. Unfortunately the operands can be referred to in
code templates, the Mem operand in particular, and since the exact type of Mem
can be different for different uses of the same template, that broke things.
2011-09-26 23:48:54 -07:00
Gabe Black
7770239792 SCons: Add a comment I forgot to add in earlier.
This comment was supposed to be added to an earlier change as part of review
feedback, but I accidentally left it out when I pushed. Add it in now.
2011-09-24 17:03:18 -07:00
Gabe Black
9f26aaa7d7 SCons: Make the ISA parser a source for its output files like the comments say.
There was a change a while ago that refactored some scons stuff which got rid
of cpu_models.py but also accidentally got rid of the ISA parser as a source
for its target files. That meant that changes which affected the parser
wouldn't cause a rebuild unless they also changed one of the description
files. This change fixes that.
2011-09-24 16:59:11 -07:00
Gabe Black
40b6c9cb2e X86: Move the MSR lookup table out of the TLB and into its own file.
Translating MSR addresses into MSR register indices took a lot of space in the
TLB source and made looking around in that file awkward. This change moves
the lookup into its own file to get it out of the way. It also changes it from
a switch statement to a hash map which should hopefully be a little more
efficient.
2011-09-23 02:42:22 -07:00
Gabe Black
9a38dc6194 MIPS: Final overhaul of MIPS faults to kill #if FULL_SYSTEM
This change is a significant reorganization of the MIPS fault code that gets
rid of duplication, fixes some bugs, doubtlessly introduces others, and adds
names for the exception code constants.
2011-09-19 06:17:21 -07:00
Gabe Black
4455fc484d MIPS, faults: Update how the PC is set. 2011-09-19 06:17:21 -07:00
Gabe Black
0d9ee17012 MIPS: Get rid of skipFaultInstruction and setRestartAddress.
Neither of these functions were used.
2011-09-19 06:17:21 -07:00
Gabe Black
5ea09771be MIPS: Use inheritance to consolidate class definitions. 2011-09-19 06:17:21 -07:00
Gabe Black
7d19ff170d MIPS: Always compile in setExceptionState, including in SE mode.
Also fix the newly exposed and preexisting compile errors. This code hasn't
been exposed in a while, and it's not up to date with the rest of gem5.
2011-09-19 06:17:21 -07:00
Gabe Black
48b6636d01 MIPS: Consolidate TLB related faults.
Pass in a bool to indicate if the fault is from a store instead of having two
different classes. The classes were also misleadingly named since loads are
also processed by the DTB but should return ITB faults since they aren't
stores. The TLB may be returning the wrong fault in this case, but I haven't
looked at it closely.
2011-09-19 06:17:20 -07:00
Gabe Black
efcded334c MIPS: Get rid of the unused "count" field in FaultVals. 2011-09-19 06:17:20 -07:00
Gabe Black
ffeab06378 MIPS: Move the genMachineCheckFault function near MachineCheckFault.
Since they're so closely linked, they should be next to each other in the
file.
2011-09-19 06:17:20 -07:00
Gabe Black
59d7fc6b26 MIPS: Consolidate the two AddressErrorFault variants. 2011-09-19 06:17:20 -07:00
Gabe Black
717d4ae930 Faults: Get rid of the unused isAlignmentFault and isMachineCheckFault.
These functions aren't called anywhere and are probably only theoretically
useful.
2011-09-19 06:17:20 -07:00
Gabe Black
110c59b414 MIPS: Get rid of cruft in the fault classes.
Get rid of Fault classes left over from when this file was copied from Alpha,
and rename ArithmeticOverflowFault to be IntegerOverflowFault and get rid of
the old IntegerOverflowFault stub. The Integer version is what's actually in
the manual, but the Arithmetic version had the implementation.
2011-09-19 06:17:19 -07:00
Gabe Black
7e704c9f51 MIPS: Add constructors to the fault classes. 2011-09-19 06:17:19 -07:00
Gabe Black
27388c0fe0 MIPS: Use the CRTP to streamline the Fault class definitions.
CRTP stands for the curiously recurring template pattern.
2011-09-19 06:17:19 -07:00
Gabe Black
59a5605fff SPARC: Remove #if FULL_SYSTEMs from the ISA description. 2011-09-19 06:17:19 -07:00
Gabe Black
f21ae529fb MIPS: Get rid of #if style config checks in the ISA description. 2011-09-19 06:14:02 -07:00
Gabe Black
4ad36a4684 MIPS: Guard SystemCallFault::invoke consistently.
Make sure it's declared iff it's also defined.
2011-09-19 06:09:15 -07:00
Gabe Black
49967ed268 MIPS: Get rid of the unused (and partially defined) CacheError fault. 2011-09-19 05:53:54 -07:00
Gabe Black
978e41eab0 Alpha: Get rid of some #if FULL_SYSTEMs in the Alpha ISA description.
The remaining ones are more complicated and may require adjustments in other
parts of the simulator.
2011-09-19 03:40:30 -07:00