It is importeant to consistently apply the same handling for flushing within
level 2 and level 1 cache handling. In this case now both handling use clean and invalidate.
Reduce number of packet transmitted interrupts by using the interrupt mechanism only
if we run out of DMA descriptors.
Under normal conditions regaining DMA descriptors, mbufs and clusters is handled
via a counter.
The baud rate of the altera cyclone-V U-Boot can not be changed at the
u-Boot console prompt. Thus we use the same baud rate as the U-Boot for
the BSP.
Clustered/partitioned scheduling helps to control the worst-case
latencies in the system. The goal is to reduce the amount of shared
state in the system and thus prevention of lock contention. Modern
multi-processor systems tend to have several layers of data and
instruction caches. With clustered/partitioned scheduling it is
possible to honour the cache topology of a system and thus avoid
expensive cache synchronization traffic.
We have clustered scheduling in case the set of processors of a system
is partitioned into non-empty pairwise-disjoint subsets. These subsets
are called clusters. Clusters with a cardinality of one are partitions.
Each cluster is owned by exactly one scheduler instance.
Add and use _CPU_SMP_Start_processor(). Add and use
_CPU_SMP_Finalize_initialization(). This makes most
_CPU_SMP_Initialize() functions a bit simpler since we can calculate the
minimum value of the count of processors requested by the application
configuration and the count of physically or virtually available
processors in the high-level code.
The CPU port has now the ability to signal a processor start failure.
With the support for clustered/partitioned scheduling the presence of
particular processors can be configured to be optional or mandatory.
There will be a fatal error only in case mandatory processors are not
present.
The CPU port may use a timeout to monitor the start of a processor.
Rename rtems_smp_get_current_processor() in
rtems_get_current_processor(). Make rtems_get_current_processor() a
function in uni-processor configurations to enable ABI compatibility
with SMP configurations.
Rename rtems_smp_get_processor_count() in rtems_get_processor_count().
Make rtems_get_processor_count() a function in uni-processor
configurations to enable ABI compatibility with SMP configurations.
Changed console driver to use interrupts instead of polling.
Change to avoid overwriting CPU32Bug interrupt vector when setting up the Sci interrupt handler.
Fixed type for boolean flag in bsp.h.
Changed mrm332.h to use 25Mhz clock.
Fixes to mrm332.cfg to use correct mcpu32 value for RTEMS_CPU_MODEL instead of m68332 which is no longer supported.
Added -mcpu=cpu32 to compiler options.
Removed broken ROM linker script and replaced broken RAM linker script with working ROM linker script.
Removed no longer required file except_vect_332_ROM.S.
Enabled 0xbeefbeef magic string in start.S to allow MRM version of CPU32Bug to auto run RTEMS.
Removed old code from start.S
Changed compiler optimization flag to optimize for size.
