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authorYijie Yang <yijie.yang@oss.qualcomm.com>2026-08-11 16:46:47 +0800
committerRob Herring (Arm) <robh@kernel.org>2026-08-15 15:46:52 -0500
commite1c13aed4a1641550e8c9518c96f016e1d52d09b (patch)
tree61c2297688373db165cc857b7c7adcb147a5c419 /Documentation/filesystems/ext4/blockmap.rst
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dt-bindings: interconnect: qcom-bwmon: Add Maili cpu-bwmon compatiblegrafted
Add the Qualcomm Maili SoC compatible string for the CPU bandwidth monitor (BWMONv4). This falls back to the sdm845-bwmon compatible, consistent with the existing pattern used by other recent SoCs such as sm8750 and kaanapali. Signed-off-by: Yijie Yang <yijie.yang@oss.qualcomm.com> Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com> Reviewed-by: Jingyi Wang <jingyi.wang@oss.qualcomm.com> Link: https://patch.msgid.link/20260811-bwmon-v2-1-80f7f150ab9e@oss.qualcomm.com Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
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+.. SPDX-License-Identifier: GPL-2.0
+
++---------------------+------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
+| i.i_block Offset | Where It Points |
++=====================+==============================================================================================================================================================================================================================+
+| 0 to 11 | Direct map to file blocks 0 to 11. |
++---------------------+------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
+| 12 | Indirect block: (file blocks 12 to (``$block_size`` / 4) + 11, or 12 to 1035 if 4KiB blocks) |
+| | |
+| | +------------------------------+--------------------------------------------------------------------+ |
+| | | Indirect Block Offset | Where It Points | |
+| | +==============================+====================================================================+ |
+| | | 0 to (``$block_size`` / 4) | Direct map to (``$block_size`` / 4) blocks (1024 if 4KiB blocks) | |
+| | +------------------------------+--------------------------------------------------------------------+ |
++---------------------+------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
+| 13 | Double-indirect block: (file blocks ``$block_size``/4 + 12 to (``$block_size`` / 4) ^ 2 + (``$block_size`` / 4) + 11, or 1036 to 1049611 if 4KiB blocks) |
+| | |
+| | +--------------------------------+---------------------------------------------------------------------------------------------------------+ |
+| | | Double Indirect Block Offset | Where It Points | |
+| | +================================+=========================================================================================================+ |
+| | | 0 to (``$block_size`` / 4) | Map to (``$block_size`` / 4) indirect blocks (1024 if 4KiB blocks) | |
+| | | | | |
+| | | | +------------------------------+--------------------------------------------------------------------+ | |
+| | | | | Indirect Block Offset | Where It Points | | |
+| | | | +==============================+====================================================================+ | |
+| | | | | 0 to (``$block_size`` / 4) | Direct map to (``$block_size`` / 4) blocks (1024 if 4KiB blocks) | | |
+| | | | +------------------------------+--------------------------------------------------------------------+ | |
+| | +--------------------------------+---------------------------------------------------------------------------------------------------------+ |
++---------------------+------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
+| 14 | Triple-indirect block: (file blocks (``$block_size`` / 4) ^ 2 + (``$block_size`` / 4) + 12 to (``$block_size`` / 4) ^ 3 + (``$block_size`` / 4) ^ 2 + (``$block_size`` / 4) + 12, or 1049612 to 1074791436 if 4KiB blocks) |
+| | |
+| | +--------------------------------+------------------------------------------------------------------------------------------------------------------------------------------------+ |
+| | | Triple Indirect Block Offset | Where It Points | |
+| | +================================+================================================================================================================================================+ |
+| | | 0 to (``$block_size`` / 4) | Map to (``$block_size`` / 4) double indirect blocks (1024 if 4KiB blocks) | |
+| | | | | |
+| | | | +--------------------------------+---------------------------------------------------------------------------------------------------------+ | |
+| | | | | Double Indirect Block Offset | Where It Points | | |
+| | | | +================================+=========================================================================================================+ | |
+| | | | | 0 to (``$block_size`` / 4) | Map to (``$block_size`` / 4) indirect blocks (1024 if 4KiB blocks) | | |
+| | | | | | | | |
+| | | | | | +------------------------------+--------------------------------------------------------------------+ | | |
+| | | | | | | Indirect Block Offset | Where It Points | | | |
+| | | | | | +==============================+====================================================================+ | | |
+| | | | | | | 0 to (``$block_size`` / 4) | Direct map to (``$block_size`` / 4) blocks (1024 if 4KiB blocks) | | | |
+| | | | | | +------------------------------+--------------------------------------------------------------------+ | | |
+| | | | +--------------------------------+---------------------------------------------------------------------------------------------------------+ | |
+| | +--------------------------------+------------------------------------------------------------------------------------------------------------------------------------------------+ |
++---------------------+------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+