350e262415
Enabling writebooster capability for Pixel UFS (pa/2994670)
enabled the following flags in Android Common Kernel:
- wb_flush_en
- wb_flush_during_h8
- wb_enable
This patch disables these writebooster-related flags to restore the
intended behavior for Pixel devices. This overrides the default Android
Common Kernel behavior.
While 'wb_flush_en' and 'wb_enable' have corresponding sysfs entries
('enable_wb_buf_flush' and 'wb_on') for toggling,
'wb_flush_during_h8' currently lacks this functionality in the Android
Common Kernel. Pixel provides the 'manual_gc' sysfs entry as a
workaround. Setting 'manual_gc' to 0 disables 'wb_flush_during_h8'.
Bug: 377958570
Flag: EXEMPT bugfix
Test: check if all writebooster-realated flags are false upon init
Change-Id: I918bf6939de3e208b715f554a96ccbd053f68a18
Signed-off-by: Daniel Lee <chullee@google.com>
74 lines
2.9 KiB
Text
74 lines
2.9 KiB
Text
on init
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# Make foreground and background I/O priority different. none-to-rt was
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# introduced in kernel 5.14. promote-to-rt was introduced in kernel 6.5.
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# Write none-to-rt first and promote-to-rt next to support both older and
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# newer kernel versions.
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write /dev/blkio/blkio.prio.class none-to-rt
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write /dev/blkio/blkio.prio.class promote-to-rt
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on property:ro.build.type=userdebug
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write /dev/sys/block/bootdevice/pixel/enable_pixel_ufs_logging 1
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chown system /dev/sg3
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on default_storage_mode
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# F2FS
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write /dev/sys/fs/by-name/userdata/data_io_flag 8
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write /dev/sys/fs/by-name/userdata/node_io_flag 8
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write /dev/sys/fs/by-name/userdata/max_io_bytes 524288
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write /dev/sys/fs/by-name/userdata/min_hot_blocks 0
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# Block
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write /dev/sys/block/by-name/rootdisk/queue/iostats 1
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write /dev/sys/block/by-name/rootdisk/queue/nr_requests 128
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write /dev/sys/block/by-name/rootdisk/queue/rq_affinity 2
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write /dev/sys/block/by-name/zoned_device/queue/rq_affinity 2
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# UFS
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write /dev/sys/block/bootdevice/clkgate_enable 1
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on init
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# Symlink /dev/sys/block/bootdevice
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wait /dev/block/platform/${ro.boot.boot_devices}
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symlink /dev/block/platform/${ro.boot.boot_devices} /dev/block/bootdevice
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symlink /sys/devices/platform/${ro.boot.boot_devices} /dev/sys/block/bootdevice
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# F2FS
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write /dev/sys/fs/by-name/userdata/data_io_flag 56
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write /dev/sys/fs/by-name/userdata/node_io_flag 56
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# Block
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write /dev/sys/block/by-name/rootdisk/queue/iostats 0
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write /dev/sys/block/by-name/rootdisk/queue/nr_requests 256
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# UFS
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write /dev/sys/block/bootdevice/clkgate_enable 0
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write /dev/sys/block/bootdevice/wb_on 0
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write /dev/sys/block/bootdevice/enable_wb_buf_flush 0
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on property:sys.boot_completed=1
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# Health Storage HAL
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chown system system /dev/sys/block/bootdevice/manual_gc
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write /dev/sys/block/bootdevice/manual_gc 0
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# Pixelstats
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chown system system /dev/sys/block/bootdevice/slowio_read_cnt
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chown system system /dev/sys/block/bootdevice/slowio_sync_cnt
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chown system system /dev/sys/block/bootdevice/slowio_unmap_cnt
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chown system system /dev/sys/block/bootdevice/slowio_write_cnt
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chown system system /dev/sys/fs/by-name/userdata/committed_atomic_block
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chown system system /dev/sys/fs/by-name/userdata/compr_new_inode
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chown system system /dev/sys/fs/by-name/userdata/compr_saved_block
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chown system system /dev/sys/fs/by-name/userdata/compr_written_block
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chown system system /dev/sys/fs/by-name/userdata/gc_reclaimed_segments
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chown system system /dev/sys/fs/by-name/userdata/gc_segment_mode
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chown system system /dev/sys/fs/by-name/userdata/peak_atomic_write
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chown system system /dev/sys/fs/by-name/userdata/revoked_atomic_block
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trigger default_storage_mode
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on charger
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trigger default_storage_mode
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on property:ro.boot.mode=charger && property:init.svc.vendor.charger=running
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trigger default_storage_mode
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