Commit d4f4cf77 authored by Linus Torvalds's avatar Linus Torvalds
Browse files

Merge branch 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm

Pull ARM updates from Russell King:

 - nommu updates from Afzal Mohammed cleaning up the vectors support

 - allow DMA memory "mapping" for nommu Benjamin Gaignard

 - fixing a correctness issue with R_ARM_PREL31 relocations in the
   module linker

 - add strlen() prototype for the decompressor

 - support for DEBUG_VIRTUAL from Florian Fainelli

 - adjusting memory bounds after memory reservations have been
   registered

 - unipher cache handling updates from Masahiro Yamada

 - initrd and Thumb Kconfig cleanups

* 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm: (23 commits)
  ARM: mm: round the initrd reservation to page boundaries
  ARM: mm: clean up initrd initialisation
  ARM: mm: move initrd init code out of arm_memblock_init()
  ARM: 8655/1: improve NOMMU definition of pgprot_*()
  ARM: 8654/1: decompressor: add strlen prototype
  ARM: 8652/1: cache-uniphier: clean up active way setup code
  ARM: 8651/1: cache-uniphier: include <linux/errno.h> instead of <linux/types.h>
  ARM: 8650/1: module: handle negative R_ARM_PREL31 addends correctly
  ARM: 8649/2: nommu: remove Hivecs configuration is asm
  ARM: 8648/2: nommu: display vectors base
  ARM: 8647/2: nommu: dynamic exception base address setting
  ARM: 8646/1: mmu: decouple VECTORS_BASE from Kconfig
  ARM: 8644/1: Reduce "CPU: shutdown" message to debug level
  ARM: 8641/1: treewide: Replace uses of virt_to_phys with __pa_symbol
  ARM: 8640/1: Add support for CONFIG_DEBUG_VIRTUAL
  ARM: 8639/1: Define KERNEL_START and KERNEL_END
  ARM: 8638/1: mtd: lart: Rename partition defines to be prefixed with PART_
  ARM: 8637/1: Adjust memory boundaries after reservations
  ARM: 8636/1: Cleanup sanity_check_meminfo
  ARM: add CPU_THUMB_CAPABLE to indicate possible Thumb support
  ...
parents f89db789 17a870be
......@@ -2,6 +2,7 @@ config ARM
bool
default y
select ARCH_CLOCKSOURCE_DATA
select ARCH_HAS_DEBUG_VIRTUAL
select ARCH_HAS_DEVMEM_IS_ALLOWED
select ARCH_HAS_ELF_RANDOMIZE
select ARCH_HAS_SET_MEMORY
......
......@@ -34,8 +34,7 @@ config PROCESSOR_ID
used instead of the auto-probing which utilizes the register.
config REMAP_VECTORS_TO_RAM
bool 'Install vectors to the beginning of RAM' if DRAM_BASE
depends on DRAM_BASE
bool 'Install vectors to the beginning of RAM'
help
The kernel needs to change the hardware exception vectors.
In nommu mode, the hardware exception vectors are normally
......
......@@ -32,6 +32,7 @@ extern void error(char *);
/* Not needed, but used in some headers pulled in by decompressors */
extern char * strstr(const char * s1, const char *s2);
extern size_t strlen(const char *s);
#ifdef CONFIG_KERNEL_GZIP
#include "../../../../lib/decompress_inflate.c"
......
......@@ -144,7 +144,7 @@ extern unsigned long mcpm_entry_vectors[MAX_NR_CLUSTERS][MAX_CPUS_PER_CLUSTER];
void mcpm_set_entry_vector(unsigned cpu, unsigned cluster, void *ptr)
{
unsigned long val = ptr ? virt_to_phys(ptr) : 0;
unsigned long val = ptr ? __pa_symbol(ptr) : 0;
mcpm_entry_vectors[cluster][cpu] = val;
sync_cache_w(&mcpm_entry_vectors[cluster][cpu]);
}
......@@ -299,8 +299,8 @@ void mcpm_cpu_power_down(void)
* the kernel as if the power_up method just had deasserted reset
* on the CPU.
*/
phys_reset = (phys_reset_t)(unsigned long)virt_to_phys(cpu_reset);
phys_reset(virt_to_phys(mcpm_entry_point));
phys_reset = (phys_reset_t)(unsigned long)__pa_symbol(cpu_reset);
phys_reset(__pa_symbol(mcpm_entry_point));
/* should never get here */
BUG();
......@@ -388,8 +388,8 @@ static int __init nocache_trampoline(unsigned long _arg)
__mcpm_outbound_leave_critical(cluster, CLUSTER_DOWN);
__mcpm_cpu_down(cpu, cluster);
phys_reset = (phys_reset_t)(unsigned long)virt_to_phys(cpu_reset);
phys_reset(virt_to_phys(mcpm_entry_point));
phys_reset = (phys_reset_t)(unsigned long)__pa_symbol(cpu_reset);
phys_reset(__pa_symbol(mcpm_entry_point));
BUG();
}
......@@ -449,7 +449,7 @@ int __init mcpm_sync_init(
sync_cache_w(&mcpm_sync);
if (power_up_setup) {
mcpm_power_up_setup_phys = virt_to_phys(power_up_setup);
mcpm_power_up_setup_phys = __pa_symbol(power_up_setup);
sync_cache_w(&mcpm_power_up_setup_phys);
}
......
......@@ -16,7 +16,7 @@
#ifndef __CACHE_UNIPHIER_H
#define __CACHE_UNIPHIER_H
#include <linux/types.h>
#include <linux/errno.h>
#ifdef CONFIG_CACHE_UNIPHIER
int uniphier_cache_init(void);
......
......@@ -83,8 +83,15 @@
#define IOREMAP_MAX_ORDER 24
#endif
#define VECTORS_BASE UL(0xffff0000)
#else /* CONFIG_MMU */
#ifndef __ASSEMBLY__
extern unsigned long vectors_base;
#define VECTORS_BASE vectors_base
#endif
/*
* The limitation of user task size can grow up to the end of free ram region.
* It is difficult to define and perhaps will never meet the original meaning
......@@ -111,6 +118,13 @@
#endif /* !CONFIG_MMU */
#ifdef CONFIG_XIP_KERNEL
#define KERNEL_START _sdata
#else
#define KERNEL_START _stext
#endif
#define KERNEL_END _end
/*
* We fix the TCM memories max 32 KiB ITCM resp DTCM at these
* locations
......@@ -206,7 +220,7 @@ extern const void *__pv_table_begin, *__pv_table_end;
: "r" (x), "I" (__PV_BITS_31_24) \
: "cc")
static inline phys_addr_t __virt_to_phys(unsigned long x)
static inline phys_addr_t __virt_to_phys_nodebug(unsigned long x)
{
phys_addr_t t;
......@@ -238,7 +252,7 @@ static inline unsigned long __phys_to_virt(phys_addr_t x)
#define PHYS_OFFSET PLAT_PHYS_OFFSET
#define PHYS_PFN_OFFSET ((unsigned long)(PHYS_OFFSET >> PAGE_SHIFT))
static inline phys_addr_t __virt_to_phys(unsigned long x)
static inline phys_addr_t __virt_to_phys_nodebug(unsigned long x)
{
return (phys_addr_t)x - PAGE_OFFSET + PHYS_OFFSET;
}
......@@ -254,6 +268,16 @@ static inline unsigned long __phys_to_virt(phys_addr_t x)
((((unsigned long)(kaddr) - PAGE_OFFSET) >> PAGE_SHIFT) + \
PHYS_PFN_OFFSET)
#define __pa_symbol_nodebug(x) __virt_to_phys_nodebug((x))
#ifdef CONFIG_DEBUG_VIRTUAL
extern phys_addr_t __virt_to_phys(unsigned long x);
extern phys_addr_t __phys_addr_symbol(unsigned long x);
#else
#define __virt_to_phys(x) __virt_to_phys_nodebug(x)
#define __phys_addr_symbol(x) __pa_symbol_nodebug(x)
#endif
/*
* These are *only* valid on the kernel direct mapped RAM memory.
* Note: Drivers should NOT use these. They are the wrong
......@@ -276,6 +300,7 @@ static inline void *phys_to_virt(phys_addr_t x)
* Drivers should NOT use these either.
*/
#define __pa(x) __virt_to_phys((unsigned long)(x))
#define __pa_symbol(x) __phys_addr_symbol(RELOC_HIDE((unsigned long)(x), 0))
#define __va(x) ((void *)__phys_to_virt((phys_addr_t)(x)))
#define pfn_to_kaddr(pfn) __va((phys_addr_t)(pfn) << PAGE_SHIFT)
......
......@@ -63,9 +63,9 @@ typedef pte_t *pte_addr_t;
/*
* Mark the prot value as uncacheable and unbufferable.
*/
#define pgprot_noncached(prot) __pgprot(0)
#define pgprot_writecombine(prot) __pgprot(0)
#define pgprot_dmacoherent(prot) __pgprot(0)
#define pgprot_noncached(prot) (prot)
#define pgprot_writecombine(prot) (prot)
#define pgprot_dmacoherent(prot) (prot)
/*
......
......@@ -151,11 +151,6 @@ __after_proc_init:
#endif
#ifdef CONFIG_CPU_ICACHE_DISABLE
bic r0, r0, #CR_I
#endif
#ifdef CONFIG_CPU_HIGH_VECTOR
orr r0, r0, #CR_V
#else
bic r0, r0, #CR_V
#endif
mcr p15, 0, r0, c1, c0, 0 @ write control reg
#elif defined (CONFIG_CPU_V7M)
......
......@@ -155,8 +155,17 @@ apply_relocate(Elf32_Shdr *sechdrs, const char *strtab, unsigned int symindex,
break;
case R_ARM_PREL31:
offset = *(u32 *)loc + sym->st_value - loc;
*(u32 *)loc = offset & 0x7fffffff;
offset = (*(s32 *)loc << 1) >> 1; /* sign extend */
offset += sym->st_value - loc;
if (offset >= 0x40000000 || offset < -0x40000000) {
pr_err("%s: section %u reloc %u sym '%s': relocation %u out of range (%#lx -> %#x)\n",
module->name, relindex, i, symname,
ELF32_R_TYPE(rel->r_info), loc,
sym->st_value);
return -ENOEXEC;
}
*(u32 *)loc &= 0x80000000;
*(u32 *)loc |= offset & 0x7fffffff;
break;
case R_ARM_MOVW_ABS_NC:
......
......@@ -81,7 +81,7 @@ __setup("fpe=", fpe_setup);
extern void init_default_cache_policy(unsigned long);
extern void paging_init(const struct machine_desc *desc);
extern void early_paging_init(const struct machine_desc *);
extern void sanity_check_meminfo(void);
extern void adjust_lowmem_bounds(void);
extern enum reboot_mode reboot_mode;
extern void setup_dma_zone(const struct machine_desc *desc);
......@@ -1093,8 +1093,14 @@ void __init setup_arch(char **cmdline_p)
setup_dma_zone(mdesc);
xen_early_init();
efi_init();
sanity_check_meminfo();
/*
* Make sure the calculation for lowmem/highmem is set appropriately
* before reserving/allocating any mmeory
*/
adjust_lowmem_bounds();
arm_memblock_init(mdesc);
/* Memory may have been removed so recalculate the bounds. */
adjust_lowmem_bounds();
early_ioremap_reset();
......
......@@ -251,7 +251,7 @@ void __cpu_die(unsigned int cpu)
pr_err("CPU%u: cpu didn't die\n", cpu);
return;
}
pr_notice("CPU%u: shutdown\n", cpu);
pr_debug("CPU%u: shutdown\n", cpu);
/*
* platform_cpu_kill() is generally expected to do the powering off
......
......@@ -27,7 +27,7 @@ static int alpine_boot_secondary(unsigned int cpu, struct task_struct *idle)
{
phys_addr_t addr;
addr = virt_to_phys(secondary_startup);
addr = __pa_symbol(secondary_startup);
if (addr > (phys_addr_t)(uint32_t)(-1)) {
pr_err("FAIL: resume address over 32bit (%pa)", &addr);
......
......@@ -25,7 +25,7 @@
static void write_release_addr(u32 release_phys)
{
u32 *virt = (u32 *) phys_to_virt(release_phys);
writel_relaxed(virt_to_phys(secondary_startup), virt);
writel_relaxed(__pa_symbol(secondary_startup), virt);
/* Make sure this store is visible to other CPUs */
smp_wmb();
__cpuc_flush_dcache_area(virt, sizeof(u32));
......
......@@ -135,7 +135,7 @@ static int bcm63138_smp_boot_secondary(unsigned int cpu,
}
/* Write the secondary init routine to the BootLUT reset vector */
val = virt_to_phys(secondary_startup);
val = __pa_symbol(secondary_startup);
writel_relaxed(val, bootlut_base + BOOTLUT_RESET_VECT);
/* Power up the core, will jump straight to its reset vector when we
......
......@@ -151,7 +151,7 @@ static void brcmstb_cpu_boot(u32 cpu)
* Set the reset vector to point to the secondary_startup
* routine
*/
cpu_set_boot_addr(cpu, virt_to_phys(secondary_startup));
cpu_set_boot_addr(cpu, __pa_symbol(secondary_startup));
/* Unhalt the cpu */
cpu_rst_cfg_set(cpu, 0);
......
......@@ -116,7 +116,7 @@ static int nsp_write_lut(unsigned int cpu)
return -ENOMEM;
}
secondary_startup_phy = virt_to_phys(secondary_startup);
secondary_startup_phy = __pa_symbol(secondary_startup);
BUG_ON(secondary_startup_phy > (phys_addr_t)U32_MAX);
writel_relaxed(secondary_startup_phy, sku_rom_lut);
......@@ -189,7 +189,7 @@ static int kona_boot_secondary(unsigned int cpu, struct task_struct *idle)
* Secondary cores will start in secondary_startup(),
* defined in "arch/arm/kernel/head.S"
*/
boot_func = virt_to_phys(secondary_startup);
boot_func = __pa_symbol(secondary_startup);
BUG_ON(boot_func & BOOT_ADDR_CPUID_MASK);
BUG_ON(boot_func > (phys_addr_t)U32_MAX);
......
......@@ -15,6 +15,7 @@
#include <asm/cacheflush.h>
#include <asm/cp15.h>
#include <asm/memory.h>
#include <asm/smp_plat.h>
#include <asm/smp_scu.h>
......@@ -75,7 +76,7 @@ static void __init berlin_smp_prepare_cpus(unsigned int max_cpus)
if (!cpu_ctrl)
goto unmap_scu;
vectors_base = ioremap(CONFIG_VECTORS_BASE, SZ_32K);
vectors_base = ioremap(VECTORS_BASE, SZ_32K);
if (!vectors_base)
goto unmap_scu;
......@@ -92,7 +93,7 @@ static void __init berlin_smp_prepare_cpus(unsigned int max_cpus)
* Write the secondary startup address into the SW reset address
* vector. This is used by boot_inst.
*/
writel(virt_to_phys(secondary_startup), vectors_base + SW_RESET_ADDR);
writel(__pa_symbol(secondary_startup), vectors_base + SW_RESET_ADDR);
iounmap(vectors_base);
unmap_scu:
......
......@@ -41,7 +41,7 @@ static int exynos_do_idle(unsigned long mode)
case FW_DO_IDLE_AFTR:
if (read_cpuid_part() == ARM_CPU_PART_CORTEX_A9)
exynos_save_cp15();
writel_relaxed(virt_to_phys(exynos_cpu_resume_ns),
writel_relaxed(__pa_symbol(exynos_cpu_resume_ns),
sysram_ns_base_addr + 0x24);
writel_relaxed(EXYNOS_AFTR_MAGIC, sysram_ns_base_addr + 0x20);
if (soc_is_exynos3250()) {
......@@ -135,7 +135,7 @@ static int exynos_suspend(void)
exynos_save_cp15();
writel(EXYNOS_SLEEP_MAGIC, sysram_ns_base_addr + EXYNOS_BOOT_FLAG);
writel(virt_to_phys(exynos_cpu_resume_ns),
writel(__pa_symbol(exynos_cpu_resume_ns),
sysram_ns_base_addr + EXYNOS_BOOT_ADDR);
return cpu_suspend(0, exynos_cpu_suspend);
......
......@@ -221,7 +221,7 @@ static void exynos_mcpm_setup_entry_point(void)
*/
__raw_writel(0xe59f0000, ns_sram_base_addr); /* ldr r0, [pc, #0] */
__raw_writel(0xe12fff10, ns_sram_base_addr + 4); /* bx r0 */
__raw_writel(virt_to_phys(mcpm_entry_point), ns_sram_base_addr + 8);
__raw_writel(__pa_symbol(mcpm_entry_point), ns_sram_base_addr + 8);
}
static struct syscore_ops exynos_mcpm_syscore_ops = {
......
......@@ -353,7 +353,7 @@ static int exynos_boot_secondary(unsigned int cpu, struct task_struct *idle)
smp_rmb();
boot_addr = virt_to_phys(exynos4_secondary_startup);
boot_addr = __pa_symbol(exynos4_secondary_startup);
ret = exynos_set_boot_addr(core_id, boot_addr);
if (ret)
......@@ -413,7 +413,7 @@ static void __init exynos_smp_prepare_cpus(unsigned int max_cpus)
mpidr = cpu_logical_map(i);
core_id = MPIDR_AFFINITY_LEVEL(mpidr, 0);
boot_addr = virt_to_phys(exynos4_secondary_startup);
boot_addr = __pa_symbol(exynos4_secondary_startup);
ret = exynos_set_boot_addr(core_id, boot_addr);
if (ret)
......
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