- 13 Mar, 2024 1 commit
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Miquel Raynal authored
SPI NOR gets the non uniform erase code cleaned. We stopped using bitmasks for erase types and flags, and instead introduced dedicated members. We then passed the SPI NOR erase map to MTD. Users can now determine the erase regions and make informed decisions on partitions size.
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- 26 Feb, 2024 11 commits
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Takahiro Kuwano authored
Some of Infineon SPI NOR flash devices support hybrid sector layout that overlays 4KB sectors on a 256KB sector and SPI NOR framework recognizes that by parsing SMPT and construct params->erase_map. The hybrid sector layout is similar to CFI flash devices that have small sectors on top and/or bottom address. In case of CFI flash devices, the erase map information is parsed through CFI table and populated into mtd->eraseregions so that users can create MTD partitions that aligned with small sector boundaries. This patch provides the same capability to SPI NOR flash devices that have non-uniform erase map. Signed-off-by:
Takahiro Kuwano <Takahiro.Kuwano@infineon.com> Reviewed-by:
Michael Walle <mwalle@kernel.org> Link: https://lore.kernel.org/r/35d0962986e493b06c13bdf7ada8130a9966dc02.1708404584.git.Takahiro.Kuwano@infineon.comSigned-off-by:
Tudor Ambarus <tudor.ambarus@linaro.org>
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Takahiro Kuwano authored
Only SNOR_OVERLAID_REGION is defined for flags in the spi_nor_erase_region structure. It can be replaced by a boolean parameter. Signed-off-by:
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Takahiro Kuwano authored
Introduce n_regions in spi_nor_erase_map structure and remove SNOR_LAST_REGION flag. Loop logics that depend on the flag are also reworked to use n_regions as loop condition. Signed-off-by:
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Takahiro Kuwano authored
Encoding bitmask flags into offset worsen the code readability. The erase type mask and flags should be stored in dedicated members. Also, erase_map.uniform_erase_type can be removed as it is redundant. Signed-off-by:
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Matthew Wilcox (Oracle) authored
As far as anybody can tell, this product never shipped. If it did, it shipped in 2007 and nobody has access to one any more. Remove the mtd NOR driver. Signed-off-by:
Matthew Wilcox (Oracle) <willy@infradead.org> Signed-off-by:
Miquel Raynal <miquel.raynal@bootlin.com> Link: https://lore.kernel.org/linux-mtd/20231208224703.1603264-2-willy@infradead.org
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Marcel Hamer authored
Minor typo in the suspend description. Signed-off-by:
Marcel Hamer <marcel.hamer@windriver.com> Signed-off-by:
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Colin Ian King authored
In two functions the variable timeo is being initialized with a value that is never read, it is being re-assigned later on. The initializations are redundant and can be removed. Cleans up clang scan build warning: warning: Value stored to 'timeo' during its initialization is never read [deadcode.DeadStores] Signed-off-by:
Colin Ian King <colin.i.king@gmail.com> Signed-off-by:
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Krzysztof Kozlowski authored
Use existing typedef for dma_filter_fn to avoid duplicating type definition. Signed-off-by:
Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Acked-by:
Vladimir Zapolskiy <vz@mleia.com> Signed-off-by:
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Nayab Sayed authored
Commit f902baa9 ("dt-bindings: mtd: Remove useless file about partitions") removed the file partition.txt. Hence, in this commit, the lines mentioning this file are updated to reference mtd.yaml, which now includes partition{,s}.yaml. Signed-off-by:
Nayab Sayed <nayabbasha.sayed@microchip.com> Acked-by:
Rob Herring <robh@kernel.org> Signed-off-by:
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Baruch Siach authored
mtd-ram can potentially be larger than 4GB. get_bitmask_order() uses fls() that is not guaranteed to work with values larger than 32-bit. Specifically on aarch64 fls() returns 0 when all 32 LSB bits are clear. Use fls64() instead. Fixes: ba32ce95 ("mtd: maps: Merge gpio-addr-flash.c into physmap-core.c") Signed-off-by:
Baruch Siach <baruch@tkos.co.il> Signed-off-by:
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Josua Mayer authored
Some spi flash memories have an interrupt signal which can be used for signalling on-chip events such as busy status or ecc errors to the host. Add binding for "interrupts" property so that boards wiring this signal may describe the connection. Signed-off-by:
Josua Mayer <josua@solid-run.com> Acked-by:
Pratyush Yadav <pratyush@kernel.org> Acked-by:
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- 05 Feb, 2024 5 commits
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Tudor Ambarus authored
While reviewing the hyperbus sfdp proposal the following problem was noticed: In file included from ./include/linux/mtd/gen_probe.h:10, from drivers/mtd/hyperbus/hyperbus-sfdp.c:6: ./include/linux/mtd/flashchip.h:77:9: error: unknown type name ‘wait_queue_head_t’ 77 | wait_queue_head_t wq; /* Wait on here when we're waiting for the chip | ^~~~~~~~~~~~~~~~~ It is good practice to directly include all headers used, it avoids implicit dependencies and spurious breakage if someone rearranges headers and causes the implicit include to vanish. Explicitly include <linux/wait.h> in include/linux/mtd/flashchip. Signed-off-by: -
Markus Elfring authored
Replace the specification of a data structure by a pointer dereference as the parameter for the operator "sizeof" to make the corresponding size determination a bit safer according to the Linux coding style convention. Signed-off-by:
Markus Elfring <elfring@users.sourceforge.net> Signed-off-by:
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Markus Elfring authored
Replace eight space characters by one tab. Signed-off-by:
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Markus Elfring authored
The kfree() function was called in one case by the ssfdcr_add_mtd() function during error handling even if the passed data structure member contained a null pointer. This issue was detected by using the Coccinelle software. Thus use another label. Signed-off-by:
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Zhenhua Huang authored
The mtd binding is always $ref'ed by other bindings, default selector should be from other binding files which ref'ed it. Now, "$nodename" in mtd.yaml turns into a "select" automatically such that a few binding check issues reported because it conflicts with sram devices(eg, qcom,imem.yaml, rules in folder sram/*) To avoid the automatically created "select" in mtd.yaml, adding: select: false Suggested-by:
Bjorn Andersson <quic_bjorande@quicinc.com> Fixes: 7bdc6718 ("dt-bindings: mtd: physmap: Reuse the generic definitions") Signed-off-by:
Zhenhua Huang <quic_zhenhuah@quicinc.com> Reviewed-by:
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- 21 Jan, 2024 23 commits
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Linus Torvalds authored
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https://evilpiepirate.org/git/bcachefsLinus Torvalds authored
Pull more bcachefs updates from Kent Overstreet: "Some fixes, Some refactoring, some minor features: - Assorted prep work for disk space accounting rewrite - BTREE_TRIGGER_ATOMIC: after combining our trigger callbacks, this makes our trigger context more explicit - A few fixes to avoid excessive transaction restarts on multithreaded workloads: fstests (in addition to ktest tests) are now checking slowpath counters, and that's shaking out a few bugs - Assorted tracepoint improvements - Starting to break up bcachefs_format.h and move on disk types so they're with the code they belong to; this will make room to start documenting the on disk format better. - A few minor fixes" * tag 'bcachefs-2024-01-21' of https://evilpiepirate.org/git/bcachefs: (46 commits) bcachefs: Improve inode_to_text() bcachefs: logged_ops_format.h bcachefs: reflink_format.h bcachefs; extents_format.h bcachefs: ec_format.h bcachefs: subvolume_format.h bcachefs: snapshot_format.h bcachefs: alloc_background_format.h bcachefs: xattr_format.h bcachefs: dirent_format.h bcachefs: inode_format.h bcachefs; quota_format.h bcachefs: sb-counters_format.h bcachefs: counters.c -> sb-counters.c bcachefs: comment bch_subvolume bcachefs: bch_snapshot::btime bcachefs: add missing __GFP_NOWARN bcachefs: opts->compression can now also be applied in the background bcachefs: Prep work for variable size btree node buffers bcachefs: grab s_umount only if snapshotting ... -
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull timer updates from Thomas Gleixner: "Updates for time and clocksources: - A fix for the idle and iowait time accounting vs CPU hotplug. The time is reset on CPU hotplug which makes the accumulated systemwide time jump backwards. - Assorted fixes and improvements for clocksource/event drivers" * tag 'timers-core-2024-01-21' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: tick-sched: Fix idle and iowait sleeptime accounting vs CPU hotplug clocksource/drivers/ep93xx: Fix error handling during probe clocksource/drivers/cadence-ttc: Fix some kernel-doc warnings clocksource/drivers/timer-ti-dm: Fix make W=n kerneldoc warnings clocksource/timer-riscv: Add riscv_clock_shutdown callback dt-bindings: timer: Add StarFive JH8100 clint dt-bindings: timer: thead,c900-aclint-mtimer: separate mtime and mtimecmp regs -
git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linuxLinus Torvalds authored
Pull powerpc fixes from Aneesh Kumar: - Increase default stack size to 32KB for Book3S Thanks to Michael Ellerman. * tag 'powerpc-6.8-2' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: powerpc/64s: Increase default stack size to 32KB
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Kent Overstreet authored
Add line breaks - inode_to_text() is now much easier to read. Signed-off-by:Kent Overstreet <kent.overstreet@linux.dev>
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Kent Overstreet authored
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Kent Overstreet authored
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Kent Overstreet authored
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Kent Overstreet authored
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Kent Overstreet authored
Signed-off-by: -
Kent Overstreet authored
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Kent Overstreet authored
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Kent Overstreet authored
Signed-off-by: -
Kent Overstreet authored
Signed-off-by: -
Kent Overstreet authored
Signed-off-by: -
Kent Overstreet authored
Signed-off-by: -
Kent Overstreet authored
bcachefs_format.h has gotten too big; let's do some organizing. Signed-off-by: -
Kent Overstreet authored
Signed-off-by: -
Kent Overstreet authored
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Kent Overstreet authored
Add a field to bch_snapshot for creation time; this will be important when we start exposing the snapshot tree to userspace. Signed-off-by: -
Kent Overstreet authored
Signed-off-by: -
Kent Overstreet authored
The "apply this compression method in the background" paths now use the compression option if background_compression is not set; this means that setting or changing the compression option will cause existing data to be compressed accordingly in the background. Signed-off-by: -
Kent Overstreet authored
bcachefs btree nodes are big - typically 256k - and btree roots are pinned in memory. As we're now up to 18 btrees, we now have significant memory overhead in mostly empty btree roots. And in the future we're going to start enforcing that certain btree node boundaries exist, to solve lock contention issues - analagous to XFS's AGIs. Thus, we need to start allocating smaller btree node buffers when we can. This patch changes code that refers to the filesystem constant c->opts.btree_node_size to refer to the btree node buffer size - btree_buf_bytes() - where appropriate. Signed-off-by:
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