Good morning, On Thu, May 28, 2026 at 07:16:32PM -0700, Ben Levinsky wrote: > This series is a preparatory remoteproc cleanup split out from review of > the AMD BRAM-based remoteproc series. > > During review, there was a request to move the duplicated plain > ioremap_wc()/iounmap() carveout callbacks into common code and to > factor the "missing resource table is OK" ELF parsing path into a > common helper as well. There was also a request to send that cleanup as > its own patchset first, with the AMD BRAM series respun afterwards on > top once this cleanup is merged. > > This version keeps the same overall cleanup goals as v2, but reworks > the optional resource-table pieces based on follow-up review: > > - reshape the optional resource-table helper in patch 4 into the thin > parse_fw() wrapper form suggested on the thread > - switch the patch 5 clients over to that helper shape directly, > without post-helper rproc->table_ptr checks > - keep the driver-local parse_fw() wrappers and their existing log > messages and severity choices > - retain as much of the existing per-driver parse_fw() logic and code > placement as possible while moving the missing-table handling > through the shared helper > > This series now does that in five patches: > > 1. add common subsystem-private callbacks for the exact-match > wc-ioremap carveout case > 2. switch the in-tree exact-match users over to those callbacks > 3. mark carveouts mapped through the shared wc-ioremap helper as > iomem so the framework uses the proper I/O accessors > 4. add a common helper for drivers that treat a missing ELF resource > table as optional while keeping per-driver logging decisions local > 5. switch the matching in-tree drivers over to that helper while > keeping thin local parse_fw() wrappers > > For the carveout map/unmap cleanup, this series covers the exact-match > users called out in review: xlnx_r5_remoteproc, rcar_rproc, > st_remoteproc, stm32_rproc, imx_rproc, and imx_dsp_rproc. The zynqmp R5 > TCM mapping path is left alone because it also clears the mapped memory > and is not an exact match. > > For the optional resource-table handling, this series converts > xlnx_r5_remoteproc, rcar_rproc, stm32_rproc, imx_rproc, and > imx_dsp_rproc. st_remoteproc is intentionally left unchanged because its > parse_fw() callback also builds carveouts and is therefore not a direct > match for the helper introduced here. > > Changes in v3: > - rework patch 4 so the optional resource-table helper matches the > thin-wrapper form suggested in review > - note that patch 4 still triggers a checkpatch --strict warning for > the flow-control macro form, but that implementation follows the > maintainer's review suggestion for the thin parse_fw() wrapper shape > - update patch 5 to use that helper shape directly in the client > parse_fw() callbacks > - drop the post-helper rproc->table_ptr checks from the converted > drivers > - keep the converted parse_fw() wrappers otherwise close to their > existing structure and placement > - test xlnx_r5_remoteproc on the latest tree with firmware images > both with and without an ELF resource table > > Changes in v2: > - split the mem->is_iomem change out into a separate patch > - add a common error message on ioremap_wc() failure > - drop logging from the optional resource-table helper > - keep driver-local parse_fw() wrappers to preserve per-platform > missing-resource-table logging policy > > Ben Levinsky (5): > remoteproc: add common wc-ioremap carveout callbacks > remoteproc: switch exact-match drivers to wc-ioremap callbacks > remoteproc: mark wc-ioremap carveouts as iomem > remoteproc: add helper for optional ELF resource tables > remoteproc: switch drivers to optional resource-table helper > > drivers/remoteproc/imx_dsp_rproc.c | 41 +++----------- > drivers/remoteproc/imx_rproc.c | 40 ++------------ > drivers/remoteproc/rcar_rproc.c | 41 ++------------ > drivers/remoteproc/remoteproc_internal.h | 38 +++++++++++++ > drivers/remoteproc/st_remoteproc.c | 31 +---------- > drivers/remoteproc/stm32_rproc.c | 39 ++----------- > drivers/remoteproc/xlnx_r5_remoteproc.c | 70 +++++-------------------
This set looks good to me. I am fine with the checkpatch warning on the macro - given the redundancy it avoids, I think it can be tolerated. Wolfram has already indicated he wanted to test these changes - Arnaud, Daniel and Peng, please do the same for your platforms. Thanks, Mathieu > 7 files changed, 73 insertions(+), 227 deletions(-) > > -- > 2.34.1
