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This is required on CPUs which always operate in CLIC mode, such as the
T-HEAD E906 and E907. Per the CLIC specification: "In this mode, the
trap vector base address held in mtvec is constrained to be aligned on a
64-byte or larger power-of-two boundary."
Reported-by: Madushan Nishantha <[email protected]>
Signed-off-by: Samuel Holland <[email protected]>
Reviewed-by: Leo Yu-Chi Liang <[email protected]>
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We can remove common.h from most cases of the code here, and only a few
places need an additional header instead.
Signed-off-by: Tom Rini <[email protected]>
Reviewed-by: Rick Chen <[email protected]>
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When debugging, it can be helpful to see more information about an
unhandled exception. This patch adds an option to view the registers at
the time of the trap, similar to the linux output on a kernel panic.
Signed-off-by: Sean Anderson <[email protected]>
Reviewed-by: Rick Chen <[email protected]>
Reviewed-by: Bin Meng <[email protected]>
Tested-by: Bin Meng <[email protected]>
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At present the trap handler returns to hardcoded M-mode/S-mode.
Change to returning to previous privilege level instead.
Signed-off-by: Bin Meng <[email protected]>
Reviewed-by: Lukas Auer <[email protected]>
Reviewed-by: Anup Patel <[email protected]>
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sp cannot be loaded before restoring other registers.
Signed-off-by: Bin Meng <[email protected]>
Reviewed-by: Lukas Auer <[email protected]>
Reviewed-by: Anup Patel <[email protected]>
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Currently the M-mode trap handler codes are in start.S. For future
extension, move them to a separate file mtrap.S.
Signed-off-by: Bin Meng <[email protected]>
Reviewed-by: Lukas Auer <[email protected]>
Reviewed-by: Anup Patel <[email protected]>
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