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Rev Age Author Path Log message Diff
3972 5600 d 4 h decky /trunk/kernel/ kernel memory management revisited (phase 1): proper support for zone flags
- the zone_t structures are now statically allocated to be easily available
- the locking scheme was simplified
- new flags for non-available zones were introduced
- FRAME_LOW_4_GiB flag is removed, the functionality will be eventually reimplemented using a generic mechanism
 
3971 5601 d 4 h vana /trunk/kernel/arch/ia64/src/mm/ Fix I/O access to identicaly mapped space  
3969 5601 d 6 h jermar /trunk/ Add simple userspace FHC driver.
Modify the z8530 userspace driver
to send BUS_CLEAR_INTERRUPT
notification to the FHC driver.
 
3967 5601 d 10 h decky /trunk/kernel/arch/mips32/src/mm/ remove typo  
3966 5601 d 10 h decky /trunk/kernel/arch/mips32/src/mm/ replace old ifdefs  
3964 5602 d 14 h decky /trunk/kernel/ switch between the preference of kernel/uspace IRQ hash table  
3963 5604 d 12 h jermar /trunk/kernel/ The kernel i8042 driver should be instance-neutral.  
3962 5604 d 12 h jermar /trunk/kernel/arch/ia64/src/ski/ Make ia64 for ski build again.
Need to implement kernel notifications independent of IRQ notifications.
 
3961 5604 d 12 h jermar /trunk/ Unbreak sparc64.
Due to the lack of userspace bus drivers for the z8530 and ns16550,
we are currently handling exactly one interrupt from these devices
in userspace.
 
3957 5605 d 6 h jermar /trunk/kernel/arch/ppc32/ Unbreak ppc32 candidate.  
3956 5605 d 6 h jermar /trunk/kernel/arch/ppc32/include/ Add missing PIO functions to ppc32.  
3955 5605 d 7 h jermar /trunk/ Unbreak mips32 candidate.  
3953 5605 d 7 h jermar /trunk/kernel/arch/mips32/include/ Add missing PIO functions for mips32.  
3952 5605 d 7 h jermar /trunk/kernel/arch/arm32/ Remove unnecessary stuff from arm32.  
3951 5605 d 8 h jermar /trunk/ Unreak arm32 (as far as breakage introduced by 3947 goes) and
adapt the uspace GXemul kbd IRQ driver to use the new pseudo code.
 
3949 5605 d 8 h jermar /trunk/kernel/arch/arm32/include/ PIO functions for arm32.  
3948 5605 d 10 h jermar /trunk/kernel/arch/amd64/ Unbreak amd64.  
3947 5605 d 10 h jermar /trunk/ This is the evil commit. In particular, it does:

- introduces more powerful pseudo code for userspace IRQ top-half handlers
- changes the internals of IRQ dispatching
- simplifies the kernel's i8042 driver
- adapts the uspace i8042 driver to make use of the new pseudocode
- breaks all other architectures except ia32
- breaks almost all existing drivers
- breaks switching between uspace and kernel drivers
 
3946 5605 d 10 h jermar /trunk/kernel/arch/ia32/include/ Fix ia32's pio_{read,write}_32().  
3941 5606 d 7 h jermar /trunk/kernel/ Let IRQ claim methods take irq_t * instead of the instance argument.  
3940 5606 d 10 h decky /trunk/kernel/ make hw_area API more generic
this allows mapping of EGA VRAM on ia32/amd64
 
3936 5606 d 12 h decky /trunk/ dash is not a safe character for C preprocessor, use underscore instead  
3935 5607 d 3 h jermar /trunk/kernel/arch/sparc64/src/drivers/ Fix sparc64 build.  
3934 5607 d 4 h jermar /trunk/kernel/ Improve the ns16550 driver.

- The driver support multiple instances.
- It still remembers the last registered IRQ in a global structure (cannot be
easily fixed now)
- Was converted to use PIO directly
 
3932 5607 d 5 h jermar /trunk/kernel/ Kill arch/drivers/ega.h. Provide one-stop shopping
place for architectures with ia32 legacy I/O space.
 
3930 5607 d 6 h jermar /trunk/kernel/ Adapt most of the kernel to ioport8_t, ioport16_t and ioport32_t types.  
3929 5607 d 6 h jermar /trunk/kernel/arch/ Introduce ioport8_t, ioport16_t and ioport32_t. These types are to be used with
pio_read_n() and pio_write_n() functions. This breaks everything.
 
3928 5607 d 8 h jermar /trunk/kernel/ Kill arch/drivers/i8042.h.  
3922 5609 d 5 h decky /trunk/ make arch_pre_main optional, don't force any specific prototype
simplify boot process
mips32: detect number of configured CPUs in msim
 
3917 5609 d 6 h decky /trunk/ remove non-standard define  
3913 5609 d 13 h decky /trunk/ mips32: basic SMP support  
3910 5610 d 3 h decky /trunk/kernel/arch/mips32/ eliminate non-standard -D$(MACHINE)  
3908 5610 d 9 h decky /trunk/ overhaul pareas: use one single physical area for the physical address space not belonging to physical memory  
3906 5611 d 4 h jermar /trunk/kernel/ IRQ handlers are using one superfluous argument and an unused elipsis.
On the other hand, IRQ claim functions would need to be passed the instance
argument.
 
3903 5611 d 12 h jermar /trunk/kernel/arch/ia32/include/ Fix ia32 build for Pentium 3 systems.  
3902 5611 d 12 h jermar /trunk/kernel/ Introduce a more platform-neutral name for programmed I/O.

The new API looks like pio_read_n() or pio_write_n(), where n is 8, 16 or 32.
The old API (i.e. inb(), inw(), inl(), outb() outw(), outl()) may have made
some people think that the interface is only to be used with the separate I/O
space. That's not the case. This API is to be implemented on all platforms
so that we can finally have really generic kernel device drivers.
 
3900 5611 d 14 h jermar /trunk/ Get rid of CONFIG_NS16550_INTERRUPT_DRIVEN and CONFIG_I8042_INTERRUPT_DRIVEN.  
3892 5612 d 6 h jermar /trunk/ Get rid of CONFIG_DEBUG_AS_WATCHPOINT.  
3891 5612 d 7 h jermar /trunk/ Get rid of CONFIG_SIMICS_FIX.  
3890 5612 d 7 h jermar /trunk/ Get rid of CONFIG_DEBUG_ALLREGS.