Commit graph

7 commits

Author SHA1 Message Date
janwas
7a5655edde # major refactoring of system-dependent code (simplifies build system)
cpu.cpp: avoided the need for wrapper functions by calling the
OS-specific function directly (declared in central header, implemented
in the platform's cpp file)

avoid the need for init in cpu and ia32 via if(!init) Init() pattern.

optimized memcpy now requires SSE support

remove error-prone CAS macro; replace with cpu_CAS
config: no longer require inline asm for float->int conversions
lib_error: remove special-case in CHECK_ERR for windows (no longer
needed)

This was SVN commit r5365.
2007-09-23 15:36:29 +00:00
janwas
f039e1ce76 fix error path for acpi/mahaf failures (attempt#2)
prevent using mahaf if it's going to fail anyway
module_init: add ModuleIsError (allows acpi and mahaf init routines to
pass failure notification on to their second and later callers)

counter: safer memory management

This was SVN commit r5333.
2007-09-07 20:17:57 +00:00
janwas
94456a218a # bugfix for ACPI init on Win2k
mahaf: add API to check whether physical memory mapping ought to work
acpi: no longer consider itself initialized if the above is not true
(fixes undue warning in PMT and possibly HPET about invalid ACPI table
on Win2k)

cpu: remove redundant include

This was SVN commit r5329.
2007-09-05 21:29:33 +00:00
janwas
f331b7313d fix very very insidious bug with mapping physical memory (TLB corruption). fix weirdness reported by michael (underlying cause: using cpu_ClockFrequency instead of wcpu_*; that made the timer run at freq=0)
mahaf: now disabled on Win2k because we can't prevent the TLB bug there.
removed the CopyPhysical API.
wutil: allow querying windows version via number

View: fix warning

This was SVN commit r5169.
2007-06-12 23:29:27 +00:00
janwas
211999ac6a fixes to timer impls:
pmt: support ACPI 1.0 table name
qpc: just use wcpu_ClockFrequency, can't fail
tsc: do ia32_Init first

This was SVN commit r5111.
2007-05-28 16:50:08 +00:00
janwas
52ae284a7e new timer code (esp. HPET) now operational. TSC still disabled pending calibration code.
add update mechanism (needed to safely handle counter rollover) and
lock-free synchronization.

refactor:
. Counters now have Activate/Shutdown interface rather than throwing
exceptions from the ctor.
. whrt is responsible for caching frequency/resolution etc.
. fix counterBits handling

This was SVN commit r5105.
2007-05-28 09:25:38 +00:00
janwas
c45ef68a88 add work-in-progress WHRT (win high res timer). works well enough, but calibration is not yet complete nor is TSC usable.
cpu: accessor functions ensure what they return is valid. no longer
needs to call wtime_reset_impl (ugh). uses ModuleInitState.
ia32: add APIC ID accessor and prevent redundant init

This was SVN commit r5093.
2007-05-26 16:57:39 +00:00