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platform: generic: Constify FDT pointers in fw_platform_init()

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Indicate that none of these functions modify the devicetree by
constifying the parameter type.

Signed-off-by: Samuel Holland <samuel.holland@sifive.com>
Reviewed-by: Andrew Jones <ajones@ventanamicro.com>
Reviewed-by: Anup Patel <anup@brainfault.org>
This commit is contained in:
Samuel Holland
2024-07-30 21:58:53 -07:00
committed by Anup Patel
parent b15cc7715a
commit 3f964652d9
3 changed files with 5 additions and 5 deletions
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2
platform/generic/include/platform_override.h
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@@ -29,7 +29,7 @@ struct platform_override {
int (*extensions_init)(const struct fdt_match *match, int (*extensions_init)(const struct fdt_match *match,
struct sbi_hart_features *hfeatures); struct sbi_hart_features *hfeatures);
int (*pmu_init)(const struct fdt_match *match); int (*pmu_init)(const struct fdt_match *match);
void (*fw_init)(void *fdt, const struct fdt_match *match); void (*fw_init)(const void *fdt, const struct fdt_match *match);
int (*vendor_ext_provider)(long funcid, int (*vendor_ext_provider)(long funcid,
struct sbi_trap_regs *regs, struct sbi_trap_regs *regs,
struct sbi_ecall_return *out, struct sbi_ecall_return *out,

6
platform/generic/platform.c
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@@ -36,7 +36,7 @@ extern unsigned long platform_override_modules_size;
static const struct platform_override *generic_plat = NULL; static const struct platform_override *generic_plat = NULL;
static const struct fdt_match *generic_plat_match = NULL; static const struct fdt_match *generic_plat_match = NULL;
static void fw_platform_lookup_special(void *fdt, int root_offset) static void fw_platform_lookup_special(const void *fdt, int root_offset)
{ {
const struct platform_override *plat; const struct platform_override *plat;
const struct fdt_match *match; const struct fdt_match *match;
@@ -81,7 +81,7 @@ static DECLARE_BITMAP(generic_coldboot_harts, SBI_HARTMASK_MAX_BITS);
* according to the DT property "cold-boot-harts" in "/chosen/opensbi-config" * according to the DT property "cold-boot-harts" in "/chosen/opensbi-config"
* DT node. If there is no "cold-boot-harts" in DT, all harts will be allowed. * DT node. If there is no "cold-boot-harts" in DT, all harts will be allowed.
*/ */
static void fw_platform_coldboot_harts_init(void *fdt) static void fw_platform_coldboot_harts_init(const void *fdt)
{ {
int chosen_offset, config_offset, cpu_offset, len, err; int chosen_offset, config_offset, cpu_offset, len, err;
u32 val32; u32 val32;
@@ -146,7 +146,7 @@ unsigned long fw_platform_init(unsigned long arg0, unsigned long arg1,
unsigned long arg4) unsigned long arg4)
{ {
const char *model; const char *model;
void *fdt = (void *)arg1; const void *fdt = (void *)arg1;
u32 hartid, hart_count = 0; u32 hartid, hart_count = 0;
int rc, root_offset, cpus_offset, cpu_offset, len; int rc, root_offset, cpus_offset, cpu_offset, len;

2
platform/generic/starfive/jh7110.c
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@@ -298,7 +298,7 @@ static bool starfive_jh7110_cold_boot_allowed(u32 hartid,
return true; return true;
} }
static void starfive_jh7110_fw_init(void *fdt, const struct fdt_match *match) static void starfive_jh7110_fw_init(const void *fdt, const struct fdt_match *match)
{ {
const fdt32_t *val; const fdt32_t *val;
int len, coff; int len, coff;