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-rw-r--r--arch/ia64/kernel/efi.c502
1 files changed, 272 insertions, 230 deletions
diff --git a/arch/ia64/kernel/efi.c b/arch/ia64/kernel/efi.c
index 242d7934112..919070a9aed 100644
--- a/arch/ia64/kernel/efi.c
+++ b/arch/ia64/kernel/efi.c
@@ -1,7 +1,8 @@
/*
* Extensible Firmware Interface
*
- * Based on Extensible Firmware Interface Specification version 0.9 April 30, 1999
+ * Based on Extensible Firmware Interface Specification version 0.9
+ * April 30, 1999
*
* Copyright (C) 1999 VA Linux Systems
* Copyright (C) 1999 Walt Drummond <drummond@valinux.com>
@@ -48,145 +49,157 @@ static unsigned long mem_limit = ~0UL, max_addr = ~0UL, min_addr = 0UL;
#define efi_call_virt(f, args...) (*(f))(args)
-#define STUB_GET_TIME(prefix, adjust_arg) \
-static efi_status_t \
-prefix##_get_time (efi_time_t *tm, efi_time_cap_t *tc) \
-{ \
- struct ia64_fpreg fr[6]; \
- efi_time_cap_t *atc = NULL; \
- efi_status_t ret; \
- \
- if (tc) \
- atc = adjust_arg(tc); \
- ia64_save_scratch_fpregs(fr); \
- ret = efi_call_##prefix((efi_get_time_t *) __va(runtime->get_time), adjust_arg(tm), atc); \
- ia64_load_scratch_fpregs(fr); \
- return ret; \
+#define STUB_GET_TIME(prefix, adjust_arg) \
+static efi_status_t \
+prefix##_get_time (efi_time_t *tm, efi_time_cap_t *tc) \
+{ \
+ struct ia64_fpreg fr[6]; \
+ efi_time_cap_t *atc = NULL; \
+ efi_status_t ret; \
+ \
+ if (tc) \
+ atc = adjust_arg(tc); \
+ ia64_save_scratch_fpregs(fr); \
+ ret = efi_call_##prefix((efi_get_time_t *) __va(runtime->get_time), \
+ adjust_arg(tm), atc); \
+ ia64_load_scratch_fpregs(fr); \
+ return ret; \
}
-#define STUB_SET_TIME(prefix, adjust_arg) \
-static efi_status_t \
-prefix##_set_time (efi_time_t *tm) \
-{ \
- struct ia64_fpreg fr[6]; \
- efi_status_t ret; \
- \
- ia64_save_scratch_fpregs(fr); \
- ret = efi_call_##prefix((efi_set_time_t *) __va(runtime->set_time), adjust_arg(tm)); \
- ia64_load_scratch_fpregs(fr); \
- return ret; \
+#define STUB_SET_TIME(prefix, adjust_arg) \
+static efi_status_t \
+prefix##_set_time (efi_time_t *tm) \
+{ \
+ struct ia64_fpreg fr[6]; \
+ efi_status_t ret; \
+ \
+ ia64_save_scratch_fpregs(fr); \
+ ret = efi_call_##prefix((efi_set_time_t *) __va(runtime->set_time), \
+ adjust_arg(tm)); \
+ ia64_load_scratch_fpregs(fr); \
+ return ret; \
}
-#define STUB_GET_WAKEUP_TIME(prefix, adjust_arg) \
-static efi_status_t \
-prefix##_get_wakeup_time (efi_bool_t *enabled, efi_bool_t *pending, efi_time_t *tm) \
-{ \
- struct ia64_fpreg fr[6]; \
- efi_status_t ret; \
- \
- ia64_save_scratch_fpregs(fr); \
- ret = efi_call_##prefix((efi_get_wakeup_time_t *) __va(runtime->get_wakeup_time), \
- adjust_arg(enabled), adjust_arg(pending), adjust_arg(tm)); \
- ia64_load_scratch_fpregs(fr); \
- return ret; \
+#define STUB_GET_WAKEUP_TIME(prefix, adjust_arg) \
+static efi_status_t \
+prefix##_get_wakeup_time (efi_bool_t *enabled, efi_bool_t *pending, \
+ efi_time_t *tm) \
+{ \
+ struct ia64_fpreg fr[6]; \
+ efi_status_t ret; \
+ \
+ ia64_save_scratch_fpregs(fr); \
+ ret = efi_call_##prefix( \
+ (efi_get_wakeup_time_t *) __va(runtime->get_wakeup_time), \
+ adjust_arg(enabled), adjust_arg(pending), adjust_arg(tm)); \
+ ia64_load_scratch_fpregs(fr); \
+ return ret; \
}
-#define STUB_SET_WAKEUP_TIME(prefix, adjust_arg) \
-static efi_status_t \
-prefix##_set_wakeup_time (efi_bool_t enabled, efi_time_t *tm) \
-{ \
- struct ia64_fpreg fr[6]; \
- efi_time_t *atm = NULL; \
- efi_status_t ret; \
- \
- if (tm) \
- atm = adjust_arg(tm); \
- ia64_save_scratch_fpregs(fr); \
- ret = efi_call_##prefix((efi_set_wakeup_time_t *) __va(runtime->set_wakeup_time), \
- enabled, atm); \
- ia64_load_scratch_fpregs(fr); \
- return ret; \
+#define STUB_SET_WAKEUP_TIME(prefix, adjust_arg) \
+static efi_status_t \
+prefix##_set_wakeup_time (efi_bool_t enabled, efi_time_t *tm) \
+{ \
+ struct ia64_fpreg fr[6]; \
+ efi_time_t *atm = NULL; \
+ efi_status_t ret; \
+ \
+ if (tm) \
+ atm = adjust_arg(tm); \
+ ia64_save_scratch_fpregs(fr); \
+ ret = efi_call_##prefix( \
+ (efi_set_wakeup_time_t *) __va(runtime->set_wakeup_time), \
+ enabled, atm); \
+ ia64_load_scratch_fpregs(fr); \
+ return ret; \
}
-#define STUB_GET_VARIABLE(prefix, adjust_arg) \
-static efi_status_t \
-prefix##_get_variable (efi_char16_t *name, efi_guid_t *vendor, u32 *attr, \
- unsigned long *data_size, void *data) \
-{ \
- struct ia64_fpreg fr[6]; \
- u32 *aattr = NULL; \
- efi_status_t ret; \
- \
- if (attr) \
- aattr = adjust_arg(attr); \
- ia64_save_scratch_fpregs(fr); \
- ret = efi_call_##prefix((efi_get_variable_t *) __va(runtime->get_variable), \
- adjust_arg(name), adjust_arg(vendor), aattr, \
- adjust_arg(data_size), adjust_arg(data)); \
- ia64_load_scratch_fpregs(fr); \
- return ret; \
+#define STUB_GET_VARIABLE(prefix, adjust_arg) \
+static efi_status_t \
+prefix##_get_variable (efi_char16_t *name, efi_guid_t *vendor, u32 *attr, \
+ unsigned long *data_size, void *data) \
+{ \
+ struct ia64_fpreg fr[6]; \
+ u32 *aattr = NULL; \
+ efi_status_t ret; \
+ \
+ if (attr) \
+ aattr = adjust_arg(attr); \
+ ia64_save_scratch_fpregs(fr); \
+ ret = efi_call_##prefix( \
+ (efi_get_variable_t *) __va(runtime->get_variable), \
+ adjust_arg(name), adjust_arg(vendor), aattr, \
+ adjust_arg(data_size), adjust_arg(data)); \
+ ia64_load_scratch_fpregs(fr); \
+ return ret; \
}
-#define STUB_GET_NEXT_VARIABLE(prefix, adjust_arg) \
-static efi_status_t \
-prefix##_get_next_variable (unsigned long *name_size, efi_char16_t *name, efi_guid_t *vendor) \
-{ \
- struct ia64_fpreg fr[6]; \
- efi_status_t ret; \
- \
- ia64_save_scratch_fpregs(fr); \
- ret = efi_call_##prefix((efi_get_next_variable_t *) __va(runtime->get_next_variable), \
- adjust_arg(name_size), adjust_arg(name), adjust_arg(vendor)); \
- ia64_load_scratch_fpregs(fr); \
- return ret; \
+#define STUB_GET_NEXT_VARIABLE(prefix, adjust_arg) \
+static efi_status_t \
+prefix##_get_next_variable (unsigned long *name_size, efi_char16_t *name, \
+ efi_guid_t *vendor) \
+{ \
+ struct ia64_fpreg fr[6]; \
+ efi_status_t ret; \
+ \
+ ia64_save_scratch_fpregs(fr); \
+ ret = efi_call_##prefix( \
+ (efi_get_next_variable_t *) __va(runtime->get_next_variable), \
+ adjust_arg(name_size), adjust_arg(name), adjust_arg(vendor)); \
+ ia64_load_scratch_fpregs(fr); \
+ return ret; \
}
-#define STUB_SET_VARIABLE(prefix, adjust_arg) \
-static efi_status_t \
-prefix##_set_variable (efi_char16_t *name, efi_guid_t *vendor, unsigned long attr, \
- unsigned long data_size, void *data) \
-{ \
- struct ia64_fpreg fr[6]; \
- efi_status_t ret; \
- \
- ia64_save_scratch_fpregs(fr); \
- ret = efi_call_##prefix((efi_set_variable_t *) __va(runtime->set_variable), \
- adjust_arg(name), adjust_arg(vendor), attr, data_size, \
- adjust_arg(data)); \
- ia64_load_scratch_fpregs(fr); \
- return ret; \
+#define STUB_SET_VARIABLE(prefix, adjust_arg) \
+static efi_status_t \
+prefix##_set_variable (efi_char16_t *name, efi_guid_t *vendor, \
+ unsigned long attr, unsigned long data_size, \
+ void *data) \
+{ \
+ struct ia64_fpreg fr[6]; \
+ efi_status_t ret; \
+ \
+ ia64_save_scratch_fpregs(fr); \
+ ret = efi_call_##prefix( \
+ (efi_set_variable_t *) __va(runtime->set_variable), \
+ adjust_arg(name), adjust_arg(vendor), attr, data_size, \
+ adjust_arg(data)); \
+ ia64_load_scratch_fpregs(fr); \
+ return ret; \
}
-#define STUB_GET_NEXT_HIGH_MONO_COUNT(prefix, adjust_arg) \
-static efi_status_t \
-prefix##_get_next_high_mono_count (u32 *count) \
-{ \
- struct ia64_fpreg fr[6]; \
- efi_status_t ret; \
- \
- ia64_save_scratch_fpregs(fr); \
- ret = efi_call_##prefix((efi_get_next_high_mono_count_t *) \
- __va(runtime->get_next_high_mono_count), adjust_arg(count)); \
- ia64_load_scratch_fpregs(fr); \
- return ret; \
+#define STUB_GET_NEXT_HIGH_MONO_COUNT(prefix, adjust_arg) \
+static efi_status_t \
+prefix##_get_next_high_mono_count (u32 *count) \
+{ \
+ struct ia64_fpreg fr[6]; \
+ efi_status_t ret; \
+ \
+ ia64_save_scratch_fpregs(fr); \
+ ret = efi_call_##prefix((efi_get_next_high_mono_count_t *) \
+ __va(runtime->get_next_high_mono_count), \
+ adjust_arg(count)); \
+ ia64_load_scratch_fpregs(fr); \
+ return ret; \
}
-#define STUB_RESET_SYSTEM(prefix, adjust_arg) \
-static void \
-prefix##_reset_system (int reset_type, efi_status_t status, \
- unsigned long data_size, efi_char16_t *data) \
-{ \
- struct ia64_fpreg fr[6]; \
- efi_char16_t *adata = NULL; \
- \
- if (data) \
- adata = adjust_arg(data); \
- \
- ia64_save_scratch_fpregs(fr); \
- efi_call_##prefix((efi_reset_system_t *) __va(runtime->reset_system), \
- reset_type, status, data_size, adata); \
- /* should not return, but just in case... */ \
- ia64_load_scratch_fpregs(fr); \
+#define STUB_RESET_SYSTEM(prefix, adjust_arg) \
+static void \
+prefix##_reset_system (int reset_type, efi_status_t status, \
+ unsigned long data_size, efi_char16_t *data) \
+{ \
+ struct ia64_fpreg fr[6]; \
+ efi_char16_t *adata = NULL; \
+ \
+ if (data) \
+ adata = adjust_arg(data); \
+ \
+ ia64_save_scratch_fpregs(fr); \
+ efi_call_##prefix( \
+ (efi_reset_system_t *) __va(runtime->reset_system), \
+ reset_type, status, data_size, adata); \
+ /* should not return, but just in case... */ \
+ ia64_load_scratch_fpregs(fr); \
}
#define phys_ptr(arg) ((__typeof__(arg)) ia64_tpa(arg))
@@ -223,7 +236,8 @@ efi_gettimeofday (struct timespec *ts)
return;
}
- ts->tv_sec = mktime(tm.year, tm.month, tm.day, tm.hour, tm.minute, tm.second);
+ ts->tv_sec = mktime(tm.year, tm.month, tm.day,
+ tm.hour, tm.minute, tm.second);
ts->tv_nsec = tm.nanosecond;
}
@@ -297,8 +311,8 @@ walk (efi_freemem_callback_t callback, void *arg, u64 attr)
}
/*
- * Walks the EFI memory map and calls CALLBACK once for each EFI memory descriptor that
- * has memory that is available for OS use.
+ * Walk the EFI memory map and call CALLBACK once for each EFI memory
+ * descriptor that has memory that is available for OS use.
*/
void
efi_memmap_walk (efi_freemem_callback_t callback, void *arg)
@@ -307,8 +321,8 @@ efi_memmap_walk (efi_freemem_callback_t callback, void *arg)
}
/*
- * Walks the EFI memory map and calls CALLBACK once for each EFI memory descriptor that
- * has memory that is available for uncached allocator.
+ * Walk the EFI memory map and call CALLBACK once for each EFI memory
+ * descriptor that has memory that is available for uncached allocator.
*/
void
efi_memmap_walk_uc (efi_freemem_callback_t callback, void *arg)
@@ -317,11 +331,10 @@ efi_memmap_walk_uc (efi_freemem_callback_t callback, void *arg)
}
/*
- * Look for the PAL_CODE region reported by EFI and maps it using an
+ * Look for the PAL_CODE region reported by EFI and map it using an
* ITR to enable safe PAL calls in virtual mode. See IA-64 Processor
* Abstraction Layer chapter 11 in ADAG
*/
-
void *
efi_get_pal_addr (void)
{
@@ -341,45 +354,47 @@ efi_get_pal_addr (void)
continue;
if (++pal_code_count > 1) {
- printk(KERN_ERR "Too many EFI Pal Code memory ranges, dropped @ %lx\n",
- md->phys_addr);
+ printk(KERN_ERR "Too many EFI Pal Code memory ranges, "
+ "dropped @ %lx\n", md->phys_addr);
continue;
}
/*
- * The only ITLB entry in region 7 that is used is the one installed by
- * __start(). That entry covers a 64MB range.
+ * The only ITLB entry in region 7 that is used is the one
+ * installed by __start(). That entry covers a 64MB range.
*/
mask = ~((1 << KERNEL_TR_PAGE_SHIFT) - 1);
vaddr = PAGE_OFFSET + md->phys_addr;
/*
- * We must check that the PAL mapping won't overlap with the kernel
- * mapping.
+ * We must check that the PAL mapping won't overlap with the
+ * kernel mapping.
*
- * PAL code is guaranteed to be aligned on a power of 2 between 4k and
- * 256KB and that only one ITR is needed to map it. This implies that the
- * PAL code is always aligned on its size, i.e., the closest matching page
- * size supported by the TLB. Therefore PAL code is guaranteed never to
- * cross a 64MB unless it is bigger than 64MB (very unlikely!). So for
- * now the following test is enough to determine whether or not we need a
- * dedicated ITR for the PAL code.
+ * PAL code is guaranteed to be aligned on a power of 2 between
+ * 4k and 256KB and that only one ITR is needed to map it. This
+ * implies that the PAL code is always aligned on its size,
+ * i.e., the closest matching page size supported by the TLB.
+ * Therefore PAL code is guaranteed never to cross a 64MB unless
+ * it is bigger than 64MB (very unlikely!). So for now the
+ * following test is enough to determine whether or not we need
+ * a dedicated ITR for the PAL code.
*/
if ((vaddr & mask) == (KERNEL_START & mask)) {
- printk(KERN_INFO "%s: no need to install ITR for PAL code\n",
- __FUNCTION__);
+ printk(KERN_INFO "%s: no need to install ITR for "
+ "PAL code\n", __FUNCTION__);
continue;
}
if (efi_md_size(md) > IA64_GRANULE_SIZE)
- panic("Woah! PAL code size bigger than a granule!");
+ panic("Whoa! PAL code size bigger than a granule!");
#if EFI_DEBUG
mask = ~((1 << IA64_GRANULE_SHIFT) - 1);
- printk(KERN_INFO "CPU %d: mapping PAL code [0x%lx-0x%lx) into [0x%lx-0x%lx)\n",
- smp_processor_id(), md->phys_addr,
- md->phys_addr + efi_md_size(md),
- vaddr & mask, (vaddr & mask) + IA64_GRANULE_SIZE);
+ printk(KERN_INFO "CPU %d: mapping PAL code "
+ "[0x%lx-0x%lx) into [0x%lx-0x%lx)\n",
+ smp_processor_id(), md->phys_addr,
+ md->phys_addr + efi_md_size(md),
+ vaddr & mask, (vaddr & mask) + IA64_GRANULE_SIZE);
#endif
return __va(md->phys_addr);
}
@@ -401,11 +416,11 @@ efi_map_pal_code (void)
* Cannot write to CRx with PSR.ic=1
*/
psr = ia64_clear_ic();
- ia64_itr(0x1, IA64_TR_PALCODE, GRANULEROUNDDOWN((unsigned long) pal_vaddr),
+ ia64_itr(0x1, IA64_TR_PALCODE,
+ GRANULEROUNDDOWN((unsigned long) pal_vaddr),
pte_val(pfn_pte(__pa(pal_vaddr) >> PAGE_SHIFT, PAGE_KERNEL)),
IA64_GRANULE_SHIFT);
ia64_set_psr(psr); /* restore psr */
- ia64_srlz_i();
}
void __init
@@ -418,7 +433,10 @@ efi_init (void)
char *cp, vendor[100] = "unknown";
int i;
- /* it's too early to be able to use the standard kernel command line support... */
+ /*
+ * It's too early to be able to use the standard kernel command line
+ * support...
+ */
for (cp = boot_command_line; *cp; ) {
if (memcmp(cp, "mem=", 4) == 0) {
mem_limit = memparse(cp + 4, &cp);
@@ -434,9 +452,11 @@ efi_init (void)
}
}
if (min_addr != 0UL)
- printk(KERN_INFO "Ignoring memory below %luMB\n", min_addr >> 20);
+ printk(KERN_INFO "Ignoring memory below %luMB\n",
+ min_addr >> 20);
if (max_addr != ~0UL)
- printk(KERN_INFO "Ignoring memory above %luMB\n", max_addr >> 20);
+ printk(KERN_INFO "Ignoring memory above %luMB\n",
+ max_addr >> 20);
efi.systab = __va(ia64_boot_param->efi_systab);
@@ -444,9 +464,9 @@ efi_init (void)
* Verify the EFI Table
*/
if (efi.systab == NULL)
- panic("Woah! Can't find EFI system table.\n");
+ panic("Whoa! Can't find EFI system table.\n");
if (efi.systab->hdr.signature != EFI_SYSTEM_TABLE_SIGNATURE)
- panic("Woah! EFI system table signature incorrect\n");
+ panic("Whoa! EFI system table signature incorrect\n");
if ((efi.systab->hdr.revision >> 16) == 0)
printk(KERN_WARNING "Warning: EFI system table version "
"%d.%02d, expected 1.00 or greater\n",
@@ -464,7 +484,8 @@ efi_init (void)
}
printk(KERN_INFO "EFI v%u.%.02u by %s:",
- efi.systab->hdr.revision >> 16, efi.systab->hdr.revision & 0xffff, vendor);
+ efi.systab->hdr.revision >> 16,
+ efi.systab->hdr.revision & 0xffff, vendor);
efi.mps = EFI_INVALID_TABLE_ADDR;
efi.acpi = EFI_INVALID_TABLE_ADDR;
@@ -519,9 +540,12 @@ efi_init (void)
efi_memory_desc_t *md;
void *p;
- for (i = 0, p = efi_map_start; p < efi_map_end; ++i, p += efi_desc_size) {
+ for (i = 0, p = efi_map_start; p < efi_map_end;
+ ++i, p += efi_desc_size)
+ {
md = p;
- printk("mem%02u: type=%u, attr=0x%lx, range=[0x%016lx-0x%016lx) (%luMB)\n",
+ printk("mem%02u: type=%u, attr=0x%lx, "
+ "range=[0x%016lx-0x%016lx) (%luMB)\n",
i, md->type, md->attribute, md->phys_addr,
md->phys_addr + efi_md_size(md),
md->num_pages >> (20 - EFI_PAGE_SHIFT));
@@ -549,8 +573,8 @@ efi_enter_virtual_mode (void)
md = p;
if (md->attribute & EFI_MEMORY_RUNTIME) {
/*
- * Some descriptors have multiple bits set, so the order of
- * the tests is relevant.
+ * Some descriptors have multiple bits set, so the
+ * order of the tests is relevant.
*/
if (md->attribute & EFI_MEMORY_WB) {
md->virt_addr = (u64) __va(md->phys_addr);
@@ -558,21 +582,26 @@ efi_enter_virtual_mode (void)
md->virt_addr = (u64) ioremap(md->phys_addr, 0);
} else if (md->attribute & EFI_MEMORY_WC) {
#if 0
- md->virt_addr = ia64_remap(md->phys_addr, (_PAGE_A | _PAGE_P
- | _PAGE_D
- | _PAGE_MA_WC
- | _PAGE_PL_0
- | _PAGE_AR_RW));
+ md->virt_addr = ia64_remap(md->phys_addr,
+ (_PAGE_A |
+ _PAGE_P |
+ _PAGE_D |
+ _PAGE_MA_WC |
+ _PAGE_PL_0 |
+ _PAGE_AR_RW));
#else
printk(KERN_INFO "EFI_MEMORY_WC mapping\n");
md->virt_addr = (u64) ioremap(md->phys_addr, 0);
#endif
} else if (md->attribute & EFI_MEMORY_WT) {
#if 0
- md->virt_addr = ia64_remap(md->phys_addr, (_PAGE_A | _PAGE_P
- | _PAGE_D | _PAGE_MA_WT
- | _PAGE_PL_0
- | _PAGE_AR_RW));
+ md->virt_addr = ia64_remap(md->phys_addr,
+ (_PAGE_A |
+ _PAGE_P |
+ _PAGE_D |
+ _PAGE_MA_WT |
+ _PAGE_PL_0 |
+ _PAGE_AR_RW));
#else
printk(KERN_INFO "EFI_MEMORY_WT mapping\n");
md->virt_addr = (u64) ioremap(md->phys_addr, 0);
@@ -583,16 +612,18 @@ efi_enter_virtual_mode (void)
status = efi_call_phys(__va(runtime->set_virtual_address_map),
ia64_boot_param->efi_memmap_size,
- efi_desc_size, ia64_boot_param->efi_memdesc_version,
+ efi_desc_size,
+ ia64_boot_param->efi_memdesc_version,
ia64_boot_param->efi_memmap);
if (status != EFI_SUCCESS) {
- printk(KERN_WARNING "warning: unable to switch EFI into virtual mode "
- "(status=%lu)\n", status);
+ printk(KERN_WARNING "warning: unable to switch EFI into "
+ "virtual mode (status=%lu)\n", status);
return;
}
/*
- * Now that EFI is in virtual mode, we call the EFI functions more efficiently:
+ * Now that EFI is in virtual mode, we call the EFI functions more
+ * efficiently:
*/
efi.get_time = virt_get_time;
efi.set_time = virt_set_time;
@@ -606,8 +637,8 @@ efi_enter_virtual_mode (void)
}
/*
- * Walk the EFI memory map looking for the I/O port range. There can only be one entry of
- * this type, other I/O port ranges should be described via ACPI.
+ * Walk the EFI memory map looking for the I/O port range. There can only be
+ * one entry of this type, other I/O port ranges should be described via ACPI.
*/
u64
efi_get_iobase (void)
@@ -678,7 +709,6 @@ efi_memmap_intersects (unsigned long phys_addr, unsigned long size)
for (p = efi_map_start; p < efi_map_end; p += efi_desc_size) {
md = p;
-
if (md->phys_addr < end && efi_md_end(md) > phys_addr)
return 1;
}
@@ -731,7 +761,7 @@ efi_mem_attribute (unsigned long phys_addr, unsigned long size)
if (!md || (md->attribute & ~EFI_MEMORY_RUNTIME) != attr)
return 0;
} while (md);
- return 0;
+ return 0; /* never reached */
}
u64
@@ -767,7 +797,7 @@ kern_mem_attribute (unsigned long phys_addr, unsigned long size)
if (!md || md->attribute != attr)
return 0;
} while (md);
- return 0;
+ return 0; /* never reached */
}
EXPORT_SYMBOL(kern_mem_attribute);
@@ -883,7 +913,7 @@ efi_uart_console_only(void)
return 1;
uart = 0;
}
- hdr = (struct efi_generic_dev_path *) ((u8 *) hdr + hdr->length);
+ hdr = (struct efi_generic_dev_path *)((u8 *) hdr + hdr->length);
}
printk(KERN_ERR "Malformed %s value\n", name);
return 0;
@@ -921,10 +951,12 @@ find_memmap_space (void)
if (!efi_wb(md)) {
continue;
}
- if (pmd == NULL || !efi_wb(pmd) || efi_md_end(pmd) != md->phys_addr) {
+ if (pmd == NULL || !efi_wb(pmd) ||
+ efi_md_end(pmd) != md->phys_addr) {
contig_low = GRANULEROUNDUP(md->phys_addr);
contig_high = efi_md_end(md);
- for (q = p + efi_desc_size; q < efi_map_end; q += efi_desc_size) {
+ for (q = p + efi_desc_size; q < efi_map_end;
+ q += efi_desc_size) {
check_md = q;
if (!efi_wb(check_md))
break;
@@ -988,8 +1020,9 @@ efi_memmap_init(unsigned long *s, unsigned long *e)
for (p = efi_map_start; p < efi_map_end; pmd = md, p += efi_desc_size) {
md = p;
if (!efi_wb(md)) {
- if (efi_uc(md) && (md->type == EFI_CONVENTIONAL_MEMORY ||
- md->type == EFI_BOOT_SERVICES_DATA)) {
+ if (efi_uc(md) &&
+ (md->type == EFI_CONVENTIONAL_MEMORY ||
+ md->type == EFI_BOOT_SERVICES_DATA)) {
k->attribute = EFI_MEMORY_UC;
k->start = md->phys_addr;
k->num_pages = md->num_pages;
@@ -997,10 +1030,12 @@ efi_memmap_init(unsigned long *s, unsigned long *e)
}
continue;
}
- if (pmd == NULL || !efi_wb(pmd) || efi_md_end(pmd) != md->phys_addr) {
+ if (pmd == NULL || !efi_wb(pmd) ||
+ efi_md_end(pmd) != md->phys_addr) {
contig_low = GRANULEROUNDUP(md->phys_addr);
contig_high = efi_md_end(md);
- for (q = p + efi_desc_size; q < efi_map_end; q += efi_desc_size) {
+ for (q = p + efi_desc_size; q < efi_map_end;
+ q += efi_desc_size) {
check_md = q;
if (!efi_wb(check_md))
break;
@@ -1025,13 +1060,17 @@ efi_memmap_init(unsigned long *s, unsigned long *e)
if (md->phys_addr < contig_low) {
lim = min(efi_md_end(md), contig_low);
if (efi_uc(md)) {
- if (k > kern_memmap && (k-1)->attribute == EFI_MEMORY_UC &&
+ if (k > kern_memmap &&
+ (k-1)->attribute == EFI_MEMORY_UC &&
kmd_end(k-1) == md->phys_addr) {
- (k-1)->num_pages += (lim - md->phys_addr) >> EFI_PAGE_SHIFT;
+ (k-1)->num_pages +=
+ (lim - md->phys_addr)
+ >> EFI_PAGE_SHIFT;
} else {
k->attribute = EFI_MEMORY_UC;
k->start = md->phys_addr;
- k->num_pages = (lim - md->phys_addr) >> EFI_PAGE_SHIFT;
+ k->num_pages = (lim - md->phys_addr)
+ >> EFI_PAGE_SHIFT;
k++;
}
}
@@ -1049,7 +1088,8 @@ efi_memmap_init(unsigned long *s, unsigned long *e)
} else {
k->attribute = EFI_MEMORY_UC;
k->start = lim;
- k->num_pages = (efi_md_end(md) - lim) >> EFI_PAGE_SHIFT;
+ k->num_pages = (efi_md_end(md) - lim)
+ >> EFI_PAGE_SHIFT;
k++;
}
}
@@ -1151,8 +1191,10 @@ efi_initialize_iomem_resources(struct resource *code_resource,
break;
}
- if ((res = kzalloc(sizeof(struct resource), GFP_KERNEL)) == NULL) {
- printk(KERN_ERR "failed to alocate resource for iomem\n");
+ if ((res = kzalloc(sizeof(struct resource),
+ GFP_KERNEL)) == NULL) {
+ printk(KERN_ERR
+ "failed to allocate resource for iomem\n");
return;
}
@@ -1187,44 +1229,44 @@ efi_initialize_iomem_resources(struct resource *code_resource,
rsvd_regions are sorted
*/
unsigned long __init
-kdump_find_rsvd_region (unsigned long size,
- struct rsvd_region *r, int n)
+kdump_find_rsvd_region (unsigned long size, struct rsvd_region *r, int n)
{
- int i;
- u64 start, end;
- u64 alignment = 1UL << _PAGE_SIZE_64M;
- void *efi_map_start, *efi_map_end, *p;
- efi_memory_desc_t *md;
- u64 efi_desc_size;
-
- efi_map_start = __va(ia64_boot_param->efi_memmap);
- efi_map_end = efi_map_start + ia64_boot_param->efi_memmap_size;
- efi_desc_size = ia64_boot_param->efi_memdesc_size;
-
- for (p = efi_map_start; p < efi_map_end; p += efi_desc_size) {
- md = p;
- if (!efi_wb(md))
- continue;
- start = ALIGN(md->phys_addr, alignment);
- end = efi_md_end(md);
- for (i = 0; i < n; i++) {
- if (__pa(r[i].start) >= start && __pa(r[i].end) < end) {
- if (__pa(r[i].start) > start + size)
- return start;
- start = ALIGN(__pa(r[i].end), alignment);
- if (i < n-1 && __pa(r[i+1].start) < start + size)
- continue;
- else
- break;
+ int i;
+ u64 start, end;
+ u64 alignment = 1UL << _PAGE_SIZE_64M;
+ void *efi_map_start, *efi_map_end, *p;
+ efi_memory_desc_t *md;
+ u64 efi_desc_size;
+
+ efi_map_start = __va(ia64_boot_param->efi_memmap);
+ efi_map_end = efi_map_start + ia64_boot_param->efi_memmap_size;
+ efi_desc_size = ia64_boot_param->efi_memdesc_size;
+
+ for (p = efi_map_start; p < efi_map_end; p += efi_desc_size) {
+ md = p;
+ if (!efi_wb(md))
+ continue;
+ start = ALIGN(md->phys_addr, alignment);
+ end = efi_md_end(md);
+ for (i = 0; i < n; i++) {
+ if (__pa(r[i].start) >= start && __pa(r[i].end) < end) {
+ if (__pa(r[i].start) > start + size)
+ return start;
+ start = ALIGN(__pa(r[i].end), alignment);
+ if (i < n-1 &&
+ __pa(r[i+1].start) < start + size)
+ continue;
+ else
+ break;
+ }
}
- }
- if (end > start + size)
- return start;
- }
-
- printk(KERN_WARNING "Cannot reserve 0x%lx byte of memory for crashdump\n",
- size);
- return ~0UL;
+ if (end > start + size)
+ return start;
+ }
+
+ printk(KERN_WARNING
+ "Cannot reserve 0x%lx byte of memory for crashdump\n", size);
+ return ~0UL;
}
#endif
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-15 18:43:17 +0000