| Commit message (Collapse) | Author | Age | Files | Lines |
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Update #3433.
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Update #3433.
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Update #3433.
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Update #3433.
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Update #3433.
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Initialize fcsr to zero for a defined rounding mode.
Update #3433.
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Do not assume that mtime is zero at boot time.
Update #3433.
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The previous version worked only on a patched Qemu. Writes to mip are
illegal according to the The RISC-V Instruction Set Manual, Volume II:
Privileged Architecture, Privileged Architecture Version 1.10.
Update #3433.
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Update #3433.
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Update #3433.
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Update #3433.
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This is a hack. The clock interrupt should be handled by each hart.
Update #3433.
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Update #3433.
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Update #3433.
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The CLINT and PLIC need some per-processor state.
Update #3433.
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Update #3433.
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Update #3433.
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Update #3433.
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Update #3433.
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Remove _CPU_ISR_install_raw_handler() and _CPU_ISR_install_vector()
functions. Applications can install an exception handler via the fatal
error handler to handle synchronous exceptions.
Handle interrupt exceptions via _RISCV_Interrupt_dispatch() which must
be provided by the BSP.
Update #3433.
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Update #3433.
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This is a prepartion to add NS16550 driver support to the console
driver.
Update #3433.
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An address must be loaded to a register according to the code model.
Add LADDR define for use in assembler code.
Update #3433.
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Update #3433.
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Update #3433.
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Remove <rtems/score/riscv-utility.h> include from <rtems/score/cpu.h>
(which is visible via <rtems.h> for example).
Update #3433.
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It duplicated the default implementation.
Update #3433.
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Use device tree provided timebase frequency. Do not write to read-only
mtime register.
Update #3433.
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Update #3433.
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Update #3433.
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Update #3433.
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Update #3433.
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Update #3433.
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Update #3433.
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Update #3433.
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Use tabs to match the GCC generated assembler output.
Update #3433.
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There is no need to do this.
Update #3433.
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Update #3444.
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Update #3433.
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The latest RISC-V tool chain introduced new multilib variants. Add
corresponding BSP variants.
Update #3433.
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Update #3433.
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Update #3433.
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Add BSP variants to match supported RISC-V ISA variants (multilibs).
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This linker command file is based on the "riscv64-rtems5-ld --verbose"
output.
Update #3433.
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Statically initialize the interrupt stack area
(_Configuration_Interrupt_stack_area_begin,
_Configuration_Interrupt_stack_area_end, and
_Configuration_Interrupt_stack_size) via <rtems/confdefs.h>. Place the
interrupt stack area in a special section ".rtemsstack.interrupt". Let
BSPs define the optimal placement of this section in their linker
command files (e.g. in a fast on-chip memory).
This change makes makes the CPU_HAS_SOFTWARE_INTERRUPT_STACK and
CPU_HAS_HARDWARE_INTERRUPT_STACK CPU port defines superfluous, since the
low level initialization code has all information available via global
symbols.
This change makes the CPU_ALLOCATE_INTERRUPT_STACK CPU port define
superfluous, since the interrupt stacks are allocated by confdefs.h for
all architectures. There is no need for BSP-specific linker command
file magic (except the section placement), see previous ARM linker
command file as a bad example.
Remove _CPU_Install_interrupt_stack(). Initialize the hardware
interrupt stack in _CPU_Initialize() if necessary (e.g.
m68k_install_interrupt_stack()).
The optional _CPU_Interrupt_stack_setup() is still useful to customize
the registration of the interrupt stack area in the per-CPU information.
The initialization stack can reuse the interrupt stack, since
* interrupts are disabled during the sequential system initialization,
and
* the boot_card() function does not return.
This stack resuse saves memory.
Changes per architecture:
arm:
* Mostly replace the linker symbol based configuration of stacks with
the standard <rtems/confdefs.h> configuration via
CONFIGURE_INTERRUPT_STACK_SIZE. The size of the FIQ, ABT and UND
mode stack is still defined via linker symbols. These modes are
rarely used in applications and the default values provided by the
BSP should be sufficient in most cases.
* Remove the bsp_processor_count linker symbol hack used for the SMP
support. This is possible since the interrupt stack area is now
allocated by the linker and not allocated from the heap. This makes
some configure.ac stuff obsolete. Remove the now superfluous BSP
variants altcycv_devkit_smp and realview_pbx_a9_qemu_smp.
bfin:
* Remove unused magic linker command file allocation of initialization
stack. Maybe a previous linker command file copy and paste problem?
In the start.S the initialization stack is set to a hard coded value.
lm32, m32c, mips, nios2, riscv, sh, v850:
* Remove magic linker command file allocation of initialization stack.
Reuse interrupt stack for initialization stack.
m68k:
* Remove magic linker command file allocation of initialization stack.
Reuse interrupt stack for initialization stack.
powerpc:
* Remove magic linker command file allocation of initialization stack.
Reuse interrupt stack for initialization stack.
* Used dedicated memory region (REGION_RTEMSSTACK) for the interrupt
stack on BSPs using the shared linkcmds.base (replacement for
REGION_RWEXTRA).
sparc:
* Remove the hard coded initialization stack. Use the interrupt stack
for the initialization stack on the boot processor. This saves
16KiB of RAM.
Update #3459.
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Use a dedicated memory region or place it between the BSS and workspace.
Update #3459.
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The aim of this clock driver hook was to stop clock tick interrupts at
some late point in the exit() procedure.
The use of atexit() pulls in malloc() which pulls in errno. It is
incompatible with the intention of the
CONFIGURE_DISABLE_NEWLIB_REENTRANCY configuration option.
The exit() function must be called from thread context, so accompanied
clock tick interrupts should cause no harm. On the contrary, someone
may assume a normal operating system operation, e.g. working timeouts.
Remove the Clock_driver_support_shutdown_hardware() clock driver hook.
Close #3436.
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This is unused copy and paste stuff.
Update #3459.
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This patch is a part of the BSP source reorganization.
Update #3285.
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