diff options
| author | Kees Cook <kees+treewide@kernel.org> | 2026-09-02 15:31:14 -0700 |
|---|---|---|
| committer | Kees Cook <kees@kernel.org> | 2026-09-04 21:37:00 -0700 |
| commit | 3a2c4d55e32ad65efebdb6de44eef3bfa08bb49d (patch) | |
| tree | c65086f9bdcd48c6360fb7cb4598bca084da1f32 /arch/arm/mach-omap1/io.c | |
| download | linux-stable-3a2c4d55e32ad65efebdb6de44eef3bfa08bb49d.tar.gz linux-stable-3a2c4d55e32ad65efebdb6de44eef3bfa08bb49d.zip | |
treewide: refresh kmalloc_obj() conversionsgrafted
This is another run of the Coccinelle script for converting kmalloc()
family of allocations to kmalloc_obj() via the existing rules in
scripts/coccinelle/api/kmalloc_objs.cocci
This catches both the set of kmalloc() uses added since the first
kmalloc_obj() conversions in v7.0 and adds a large group missed in the
first pass due to Coccinelle not interacting well with the cleanup.h
scoped_...() family of macros[1]. I worked around this with spatch's
"--macro-file" argument to a file with all the scoped_...() macros mapped
to Coccinelle's YACFE_ITERATOR[2] as that was the closest viable control
flow indicator I could find.
Build tested allmodconfig on x86, arm64, arm, loongarch, mips, powerpc,
riscv, and s390 with no new warnings.
Link: https://lore.kernel.org/lkml/202609021314.8A9C0B8@keescook/ [1]
Link: https://github.com/coccinelle/coccinelle/blob/master/standard.h [2]
Signed-off-by: Kees Cook <kees+treewide@kernel.org>
Diffstat (limited to 'arch/arm/mach-omap1/io.c')
| -rw-r--r-- | arch/arm/mach-omap1/io.c | 109 |
1 files changed, 109 insertions, 0 deletions
diff --git a/arch/arm/mach-omap1/io.c b/arch/arm/mach-omap1/io.c new file mode 100644 index 000000000..1f20fe99b --- /dev/null +++ b/arch/arm/mach-omap1/io.c @@ -0,0 +1,109 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * linux/arch/arm/mach-omap1/io.c + * + * OMAP1 I/O mapping code + */ + +#include <linux/module.h> +#include <linux/kernel.h> +#include <linux/init.h> +#include <linux/io.h> +#include <linux/omap-dma.h> + +#include <asm/tlb.h> +#include <asm/mach/map.h> + +#include "tc.h" +#include "iomap.h" +#include "common.h" + +/* + * The machine specific code may provide the extra mapping besides the + * default mapping provided here. + */ +static struct map_desc omap1_io_desc[] __initdata = { + { + .virtual = OMAP1_IO_VIRT, + .pfn = __phys_to_pfn(OMAP1_IO_PHYS), + .length = OMAP1_IO_SIZE, + .type = MT_DEVICE + }, { + .virtual = OMAP1_DSP_BASE, + .pfn = __phys_to_pfn(OMAP1_DSP_START), + .length = OMAP1_DSP_SIZE, + .type = MT_DEVICE + }, { + .virtual = OMAP1_DSPREG_BASE, + .pfn = __phys_to_pfn(OMAP1_DSPREG_START), + .length = OMAP1_DSPREG_SIZE, + .type = MT_DEVICE + } +}; + +/* + * Maps common IO regions for omap1 + */ +void __init omap1_map_io(void) +{ + iotable_init(omap1_io_desc, ARRAY_SIZE(omap1_io_desc)); +} + +/* + * Common low-level hardware init for omap1. + */ +void __init omap1_init_early(void) +{ + omap_check_revision(); + + /* REVISIT: Refer to OMAP5910 Errata, Advisory SYS_1: "Timeout Abort + * on a Posted Write in the TIPB Bridge". + */ + omap_writew(0x0, MPU_PUBLIC_TIPB_CNTL); + omap_writew(0x0, MPU_PRIVATE_TIPB_CNTL); +} + +void __init omap1_init_late(void) +{ + omap_serial_wakeup_init(); +} + +/* + * NOTE: Please use ioremap + __raw_read/write where possible instead of these + */ + +u8 omap_readb(u32 pa) +{ + return __raw_readb(OMAP1_IO_ADDRESS(pa)); +} +EXPORT_SYMBOL(omap_readb); + +u16 omap_readw(u32 pa) +{ + return __raw_readw(OMAP1_IO_ADDRESS(pa)); +} +EXPORT_SYMBOL(omap_readw); + +u32 omap_readl(u32 pa) +{ + return __raw_readl(OMAP1_IO_ADDRESS(pa)); +} +EXPORT_SYMBOL(omap_readl); + +void omap_writeb(u8 v, u32 pa) +{ + __raw_writeb(v, OMAP1_IO_ADDRESS(pa)); +} +EXPORT_SYMBOL(omap_writeb); + +void omap_writew(u16 v, u32 pa) +{ + __raw_writew(v, OMAP1_IO_ADDRESS(pa)); +} +EXPORT_SYMBOL(omap_writew); + +void omap_writel(u32 v, u32 pa) +{ + __raw_writel(v, OMAP1_IO_ADDRESS(pa)); +} +EXPORT_SYMBOL(omap_writel); |
