kernel/git/next/linux-next.git/drivers/gpu/ipu-v3/ipu-image-convert.c, branch master

Convert 'alloc_obj' family to use the new default GFP_KERNEL argument

2026-02-22T01:09:51+00:00

This was done entirely with mindless brute force, using git grep -l '\

treewide: Replace kmalloc with kmalloc_obj for non-scalar types

2026-02-21T09:02:28+00:00

This is the result of running the Coccinelle script from scripts/coccinelle/api/kmalloc_objs.cocci. The script is designed to avoid scalar types (which need careful case-by-case checking), and instead replace kmalloc-family calls that allocate struct or union object instances: Single allocations: kmalloc(sizeof(TYPE), ...) are replaced with: kmalloc_obj(TYPE, ...) Array allocations: kmalloc_array(COUNT, sizeof(TYPE), ...) are replaced with: kmalloc_objs(TYPE, COUNT, ...) Flex array allocations: kmalloc(struct_size(PTR, FAM, COUNT), ...) are replaced with: kmalloc_flex(*PTR, FAM, COUNT, ...) (where TYPE may also be *VAR) The resulting allocations no longer return "void *", instead returning "TYPE *". Signed-off-by: Kees Cook

gpu: ipu-v3: Remove unused ipu_image_convert_* functions

2025-03-01T09:29:03+00:00

ipu_image_convert_enum_format() and ipu_image_convert_sync() were both added in 2016 by commit cd98e85a6b78 ("gpu: ipu-v3: Add queued image conversion support") but have remained unused. Remove them. ipu_image_convert_sync() was the last user of image_convert_sync_complete(). Remove it. Signed-off-by: Dr. David Alan Gilbert Reviewed-by: Dmitry Baryshkov Link: https://patchwork.freedesktop.org/patch/msgid/20241226022752.219399-5-linux@treblig.org Signed-off-by: Dmitry Baryshkov

drm/i915: Move abs_diff() to math.h

2023-08-18T17:18:59+00:00

abs_diff() belongs to math.h. Move it there. This will allow others to use it. [andriy.shevchenko@linux.intel.com: add abs_diff() documentation] Link: https://lkml.kernel.org/r/20230804050934.83223-1-andriy.shevchenko@linux.intel.com [akpm@linux-foundation.org: fix comment, per Randy] Link: https://lkml.kernel.org/r/20230803131918.53727-1-andriy.shevchenko@linux.intel.com Signed-off-by: Andy Shevchenko Reviewed-by: Jiri Slaby # tty/serial Acked-by: Jani Nikula Acked-by: Greg Kroah-Hartman Reviewed-by: Andi Shyti Reviewed-by: Philipp Zabel # gpu/ipu-v3 Cc: Alexey Dobriyan Cc: Daniel Vetter Cc: David Airlie Cc: Helge Deller Cc: Imre Deak Cc: Jani Nikula Cc: Joonas Lahtinen Cc: Rasmus Villemoes Cc: Rodrigo Vivi Cc: Tvrtko Ursulin Cc: Randy Dunlap Signed-off-by: Andrew Morton

gpu: ipu-v3: image-convert: use swap()

2022-04-04T07:34:20+00:00

Use swap() instead of implementing it since it makes code cleaner. Signed-off-by: Salah Triki Link: https://lore.kernel.org/r/20210713140521.GA1873885@pc [p.zabel@pengutronix.de: add "image-convert:" prefix to commit description] Signed-off-by: Philipp Zabel

gpu: ipu-v3: image-convert: Wait for all EOFs before completing a tile

2020-07-20T13:16:05+00:00

Use a bit-mask of EOF irqs to determine when all required idmac channel EOFs have been received for a tile conversion, and only do tile completion processing after all EOFs have been received. Otherwise it was found that a conversion would stall after the completion of a tile and the start of the next tile, because the input/read idmac channel had not completed and entered idle state, thus locking up the channel when attempting to re-start it for the next tile. Fixes: 0537db801bb01 ("gpu: ipu-v3: image-convert: reconfigure IC per tile") Signed-off-by: Steve Longerbeam Signed-off-by: Philipp Zabel

gpu: ipu-v3: image-convert: Combine rotate/no-rotate irq handlers

2020-07-20T13:16:05+00:00

Combine the rotate_irq() and norotate_irq() handlers into a single eof_irq() handler. Signed-off-by: Steve Longerbeam Signed-off-by: Philipp Zabel

gpu: ipu-v3: image-convert: only sample into the next tile if necessary

2019-08-19T14:25:30+00:00

The first pixel of the next tile is only sampled by the hardware if the fractional input position corresponding to the last written output pixel is not an integer position. Signed-off-by: Philipp Zabel

gpu: ipu-v3: image-convert: move tile burst alignment out of loop

2019-08-19T14:25:30+00:00

Burst aligned input and output width can be calculated once per column, instead of repeatedly for each tile in the column. The same goes for input and output height per row. Also don't round up the same values repeatedly. Signed-off-by: Philipp Zabel

gpu: ipu-v3: image-convert: bail on invalid tile sizes

2019-08-19T14:25:30+00:00

If we managed to create tiles sized 0x0 because of a bug in the seam calculation, return with an error message instead of letting the driver run into a division by zero later. Also check for tile sizes that are larger than supported by the hardware. Signed-off-by: Philipp Zabel