From f4cdf7ca9a1fdcca413157df19753f388a5a224e Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Wed, 19 Aug 2026 10:09:22 -0700 Subject: Merge tag 'media/v7.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media Pull media updates from Mauro Carvalho Chehab: - v4l2-core: added ISP statistics support and per-block validation - v4l2-core: Allow unknown HDR10 white point and luminance - New camera sensors: Sony IMX678 and IMX471m, Himax HM1092 IR sensor - New codec: Milos: VPU v2.0 codec support - isp driver: gained support for Dreamchip RPPX1 ISP framework - vsp1 driver: gained support for RZ/T2H and RZ/N2H - Novalake driver: gained CVS support for new NVL hardware - dvb-core: fix feed leak on failed DMX_ADD_PID - several driver fixes, cleanups and minor improvements * tag 'media/v7.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (308 commits) media: ipu-bridge: check all DMI entries when overriding sensor rotation media: v4l2-async: avoid deleting unlinked ASC entry on link error media: rzg2l-cru: Align bytesperline to hardware DMA stride requirement media: intel/ipu6: fix async notifier cleanup leak on parse error media: staging/ipu7: fix async notifier UAF on probe error path media: amd: isp4: fix self-deadlock in isp4sd_pwron_and_init() error path media: amd: isp4: release partial allocations in isp4if_alloc_fw_gpumem() media: rcar-isp: Fix VSPX reference leaks media: rcar-isp: Release ISPCORE resources media: i2c: imx415: Release runtime PM reference on VBLANK error media: i2c: imx415: Return test pattern write errors media: renesas: vsp1: Declare index variables in for loop statement media: renesas: vsp1: Make reset control optional to support platforms without a reset line media: dt-bindings: media: renesas,vsp1: Document RZ/T2H and RZ/N2H SoCs media: dt-bindings: media: renesas,fcp: Document RZ/T2H and RZ/N2H SoCs media: nxp: imx8-isi: Add additional 32-bit RGB format support media: nxp: imx8-isi: Add 16-bit raw Bayer format support media: nxp: imx8-isi: Implement per-stream reference counting for multiplexed streams media: nxp: imx8-isi: Use BIT_ULL() for 64-bit stream masks media: nxp: imx8-isi: Correct color map between V4L2 and ISI ... --- arch/hexagon/mm/cache.c | 126 ++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 126 insertions(+) create mode 100644 arch/hexagon/mm/cache.c (limited to 'arch/hexagon/mm/cache.c') diff --git a/arch/hexagon/mm/cache.c b/arch/hexagon/mm/cache.c new file mode 100644 index 000000000..7e46f40c8 --- /dev/null +++ b/arch/hexagon/mm/cache.c @@ -0,0 +1,126 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * Cache management functions for Hexagon + * + * Copyright (c) 2010-2011, The Linux Foundation. All rights reserved. + */ + +#include +#include +#include + +#define spanlines(start, end) \ + (((end - (start & ~(LINESIZE - 1))) >> LINEBITS) + 1) + +void flush_dcache_range(unsigned long start, unsigned long end) +{ + unsigned long lines = spanlines(start, end-1); + unsigned long i, flags; + + start &= ~(LINESIZE - 1); + + local_irq_save(flags); + + for (i = 0; i < lines; i++) { + __asm__ __volatile__ ( + " dccleaninva(%0); " + : + : "r" (start) + ); + start += LINESIZE; + } + local_irq_restore(flags); +} + +void flush_icache_range(unsigned long start, unsigned long end) +{ + unsigned long lines = spanlines(start, end-1); + unsigned long i, flags; + + start &= ~(LINESIZE - 1); + + local_irq_save(flags); + + for (i = 0; i < lines; i++) { + __asm__ __volatile__ ( + " dccleana(%0); " + " icinva(%0); " + : + : "r" (start) + ); + start += LINESIZE; + } + __asm__ __volatile__ ( + "isync" + ); + local_irq_restore(flags); +} +EXPORT_SYMBOL(flush_icache_range); + +void hexagon_clean_dcache_range(unsigned long start, unsigned long end) +{ + unsigned long lines = spanlines(start, end-1); + unsigned long i, flags; + + start &= ~(LINESIZE - 1); + + local_irq_save(flags); + + for (i = 0; i < lines; i++) { + __asm__ __volatile__ ( + " dccleana(%0); " + : + : "r" (start) + ); + start += LINESIZE; + } + local_irq_restore(flags); +} + +void hexagon_inv_dcache_range(unsigned long start, unsigned long end) +{ + unsigned long lines = spanlines(start, end-1); + unsigned long i, flags; + + start &= ~(LINESIZE - 1); + + local_irq_save(flags); + + for (i = 0; i < lines; i++) { + __asm__ __volatile__ ( + " dcinva(%0); " + : + : "r" (start) + ); + start += LINESIZE; + } + local_irq_restore(flags); +} + + + + +/* + * This is just really brutal and shouldn't be used anyways, + * especially on V2. Left here just in case. + */ +void flush_cache_all_hexagon(void) +{ + unsigned long flags; + local_irq_save(flags); + __vmcache_ickill(); + __vmcache_dckill(); + __vmcache_l2kill(); + local_irq_restore(flags); + mb(); +} + +void copy_to_user_page(struct vm_area_struct *vma, struct page *page, + unsigned long vaddr, void *dst, void *src, int len) +{ + memcpy(dst, src, len); + if (vma->vm_flags & VM_EXEC) { + flush_icache_range((unsigned long) dst, + (unsigned long) dst + len); + } +} -- cgit v1.3.1