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Date: Mon, 12 Feb 2007 08:38:22 +0100 (CET)
From: Andi Kleen <ak@...e.de>
To: patches@...-64.org, linux-kernel@...r.kernel.org
Subject: [PATCH x86 for review II] [34/39] i386: Use stack arguments for calling into EFI
When calling into the EFI firmware, the parameters need to be passed on
the stack. The recent change to use -mregparm=3 breaks x86 EFI support.
This patch is needed to allow the new Intel-based Macs to suspend to ram
(efi.get_time is called during the suspend phase).
Signed-off-by: Frederic Riss <frederic.riss@...il.com>
Signed-off-by: Andi Kleen <ak@...e.de>
---
include/linux/efi.h | 43 +++++++++++++++++++++++++++----------------
1 file changed, 27 insertions(+), 16 deletions(-)
Index: linux/include/linux/efi.h
===================================================================
--- linux.orig/include/linux/efi.h
+++ linux/include/linux/efi.h
@@ -157,22 +157,33 @@ typedef struct {
unsigned long reset_system;
} efi_runtime_services_t;
-typedef efi_status_t efi_get_time_t (efi_time_t *tm, efi_time_cap_t *tc);
-typedef efi_status_t efi_set_time_t (efi_time_t *tm);
-typedef efi_status_t efi_get_wakeup_time_t (efi_bool_t *enabled, efi_bool_t *pending,
- efi_time_t *tm);
-typedef efi_status_t efi_set_wakeup_time_t (efi_bool_t enabled, efi_time_t *tm);
-typedef efi_status_t efi_get_variable_t (efi_char16_t *name, efi_guid_t *vendor, u32 *attr,
- unsigned long *data_size, void *data);
-typedef efi_status_t efi_get_next_variable_t (unsigned long *name_size, efi_char16_t *name,
- efi_guid_t *vendor);
-typedef efi_status_t efi_set_variable_t (efi_char16_t *name, efi_guid_t *vendor,
- unsigned long attr, unsigned long data_size,
- void *data);
-typedef efi_status_t efi_get_next_high_mono_count_t (u32 *count);
-typedef void efi_reset_system_t (int reset_type, efi_status_t status,
- unsigned long data_size, efi_char16_t *data);
-typedef efi_status_t efi_set_virtual_address_map_t (unsigned long memory_map_size,
+typedef asmlinkage efi_status_t efi_get_time_t (efi_time_t *tm,
+ efi_time_cap_t *tc);
+typedef asmlinkage efi_status_t efi_set_time_t (efi_time_t *tm);
+typedef asmlinkage efi_status_t efi_get_wakeup_time_t (efi_bool_t *enabled,
+ efi_bool_t *pending,
+ efi_time_t *tm);
+typedef asmlinkage efi_status_t efi_set_wakeup_time_t (efi_bool_t enabled,
+ efi_time_t *tm);
+typedef asmlinkage efi_status_t efi_get_variable_t (efi_char16_t *name,
+ efi_guid_t *vendor,
+ u32 *attr,
+ unsigned long *data_size,
+ void *data);
+typedef asmlinkage efi_status_t efi_get_next_variable_t (unsigned long *name_sz,
+ efi_char16_t *name,
+ efi_guid_t *vendor);
+typedef asmlinkage efi_status_t efi_set_variable_t (efi_char16_t *name,
+ efi_guid_t *vendor,
+ unsigned long attr,
+ unsigned long data_size,
+ void *data);
+typedef asmlinkage efi_status_t efi_get_next_high_mono_count_t (u32 *count);
+typedef asmlinkage void efi_reset_system_t (int reset_type,
+ efi_status_t status,
+ unsigned long data_size,
+ efi_char16_t *data);
+typedef asmlinkage efi_status_t efi_set_virtual_address_map_t (unsigned long memory_map_size,
unsigned long descriptor_size,
u32 descriptor_version,
efi_memory_desc_t *virtual_map);
-
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