u-boot.git/arch/x86/include/asm/cpu.h, branch master

x86: cpu: Describe board final hooks in the header

2025-05-09T16:39:27+00:00

The new two declarations board_final_init() and board_final_cleanup()
need a description. Add it here.

Suggested-by: Simon Glass 
Signed-off-by: Andy Shevchenko 
Reviewed-by: Simon Glass

x86: Update cpuid_eax et al to work on amd64

2025-04-03T17:41:55+00:00

The existing functions work but the register clobbers are wrong, so
strange bugs results.

The original functions were taken from a very old version of Linux.
Update them from Linux 6.13

Signed-off-by: Simon Glass

x86: Support CPU functions in long mode

2025-04-03T17:41:55+00:00

At present it is not possible to find out the physical-address size in
long mode, so a predefined value is used.

Update the macros to support this properly, since it is important when
programming MTRRs.

Signed-off-by: Simon Glass

cpu: Provide a way to get the physical-address size

2025-01-22T21:58:03+00:00

This concept exists on x86. Declare it as a generic function so that the
value can be accessed by UPL.

Signed-off-by: Simon Glass

x86: cpu: Add a few prototypes to the header file

2024-10-18T20:10:22+00:00

The compiler is not happy to have no prototypes for the functions that
are not defined static. Add them. This helps avoiding the compiler warnings:

  arch/x86/cpu/cpu.c:197:13: warning: no previous prototype for ‘board_final_init’ [-Wmissing-prototypes]
  arch/x86/cpu/cpu.c:205:13: warning: no previous prototype for ‘board_final_cleanup’ [-Wmissing-prototypes]
  arch/x86/cpu/cpu.c:307:5: warning: no previous prototype for ‘reserve_arch’ [-Wmissing-prototypes]

Signed-off-by: Andy Shevchenko 
Reviewed-by: Simon Glass

x86: provide mb() macro

2024-09-03T15:12:00+00:00

Implement a x86 memory barrier mb(). Furthermore, remove the previously
used mfence() function, which does the same thing.

The mb() macro is now equivalent to Linux (v6.9):
linux/arch/x86/include/asm/barrier.h

Signed-off-by: Philip Oberfichtner 
Reviewed-by: Simon Glass

x86: Add return-value comment to cpu_jump_to_64bit()

2023-03-25T10:07:21+00:00

This does not mention what it returns. Add the missing documentation.

Signed-off-by: Simon Glass

doc: replace @return by Return:

2022-01-19T17:11:34+00:00

Sphinx expects Return: and not @return to indicate a return value.

find . -name '*.c' -exec \
sed -i 's/^\(\s\)\*\(\s*\)@return\(\s\)/\1*\2Return:\3/' {} \;

find . -name '*.h' -exec \
sed -i 's/^\(\s\)\*\(\s*\)@return\(\s\)/\1*\2Return:\3/' {} \;

Signed-off-by: Heinrich Schuchardt

x86: cpu: Report address width from cpu_get_info()

2020-09-25T03:27:21+00:00

Add support for this new field in the common code used by most x86 CPU
drivers.

Signed-off-by: Simon Glass

x86: spl: Support init of a PUNIT

2019-11-02T23:20:27+00:00

The x86 power unit handles power management. Support initing this device
which is modelled as a new type of system controller since there are no
operations needed.

Signed-off-by: Simon Glass 
Reviewed-by: Bin Meng