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a02b0cde8e
In commit721255b982("genirq: Use a maple tree for interrupt descriptor management"), the irq_desc_tree was replaced with a sparse_irqs tree using a maple tree structure. Since the script looked for the irq_desc_tree symbol which is no longer available, no interrupts would be printed and the script output would not be useful anymore. In addition to looking up the correct symbol (sparse_irqs), a new module (mapletree.py) is added whose mtree_load() implementation is largely copied after the C version and uses the same variable and intermediate function names wherever possible to ensure that both the C and Python version be updated in the future. This restores the scripts' output to match that of /proc/interrupts. Link: https://lkml.kernel.org/r/20250625021020.1056930-1-florian.fainelli@broadcom.com Fixes:721255b982("genirq: Use a maple tree for interrupt descriptor management") Signed-off-by: Florian Fainelli <florian.fainelli@broadcom.com> Cc: Jan Kiszka <jan.kiszka@siemens.com> Cc: Kieran Bingham <kbingham@kernel.org> Cc: Shanker Donthineni <sdonthineni@nvidia.com> Cc: Thomas Gleinxer <tglx@linutronix.de> Cc: <stable@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
29 lines
636 B
Python
29 lines
636 B
Python
# SPDX-License-Identifier: GPL-2.0
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#
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# Xarray helpers
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#
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# Copyright (c) 2025 Broadcom
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#
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# Authors:
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# Florian Fainelli <florian.fainelli@broadcom.com>
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import gdb
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from linux import utils
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from linux import constants
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def xa_is_internal(entry):
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ulong_type = utils.get_ulong_type()
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return ((entry.cast(ulong_type) & 3) == 2)
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def xa_mk_internal(v):
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return ((v << 2) | 2)
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def xa_is_zero(entry):
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ulong_type = utils.get_ulong_type()
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return entry.cast(ulong_type) == xa_mk_internal(257)
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def xa_is_node(entry):
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ulong_type = utils.get_ulong_type()
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return xa_is_internal(entry) and (entry.cast(ulong_type) > 4096)
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