[IA64] IA64 Kexec/kdump
Changes and updates.
1. Remove fake rendz path and related code according to discuss with Khalid Aziz.
2. fc.i offset fix in relocate_kernel.S.
3. iospic shutdown code eoi and mask race fix from Fujitsu.
4. Warm boot hook in machine_kexec to SN SAL code from Jack Steiner.
5. Send slave to SAL slave loop patch from Jay Lan.
6. Kdump on non-recoverable MCA event patch from Jay Lan
7. Use CTL_UNNUMBERED in kdump_on_init sysctl.
Signed-off-by: Zou Nan hai <nanhai.zou@intel.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
diff --git a/include/asm-ia64/kexec.h b/include/asm-ia64/kexec.h
new file mode 100644
index 0000000..01c36b0
--- /dev/null
+++ b/include/asm-ia64/kexec.h
@@ -0,0 +1,47 @@
+#ifndef _ASM_IA64_KEXEC_H
+#define _ASM_IA64_KEXEC_H
+
+
+/* Maximum physical address we can use pages from */
+#define KEXEC_SOURCE_MEMORY_LIMIT (-1UL)
+/* Maximum address we can reach in physical address mode */
+#define KEXEC_DESTINATION_MEMORY_LIMIT (-1UL)
+/* Maximum address we can use for the control code buffer */
+#define KEXEC_CONTROL_MEMORY_LIMIT TASK_SIZE
+
+#define KEXEC_CONTROL_CODE_SIZE (8192 + 8192 + 4096)
+
+/* The native architecture */
+#define KEXEC_ARCH KEXEC_ARCH_IA_64
+
+#define MAX_NOTE_BYTES 1024
+
+#define kexec_flush_icache_page(page) do { \
+ unsigned long page_addr = (unsigned long)page_address(page); \
+ flush_icache_range(page_addr, page_addr + PAGE_SIZE); \
+ } while(0)
+
+extern struct kimage *ia64_kimage;
+DECLARE_PER_CPU(u64, ia64_mca_pal_base);
+const extern unsigned int relocate_new_kernel_size;
+extern void relocate_new_kernel(unsigned long, unsigned long,
+ struct ia64_boot_param *, unsigned long);
+static inline void
+crash_setup_regs(struct pt_regs *newregs, struct pt_regs *oldregs)
+{
+}
+extern struct resource efi_memmap_res;
+extern struct resource boot_param_res;
+extern void kdump_smp_send_stop(void);
+extern void kdump_smp_send_init(void);
+extern void kexec_disable_iosapic(void);
+extern void crash_save_this_cpu(void);
+struct rsvd_region;
+extern unsigned long kdump_find_rsvd_region(unsigned long size,
+ struct rsvd_region *rsvd_regions, int n);
+extern void kdump_cpu_freeze(struct unw_frame_info *info, void *arg);
+extern int kdump_status[];
+extern atomic_t kdump_cpu_freezed;
+extern atomic_t kdump_in_progress;
+
+#endif /* _ASM_IA64_KEXEC_H */
diff --git a/include/asm-ia64/machvec.h b/include/asm-ia64/machvec.h
index 8f784f8..a3891eb 100644
--- a/include/asm-ia64/machvec.h
+++ b/include/asm-ia64/machvec.h
@@ -37,6 +37,7 @@
u8 size);
typedef void ia64_mv_migrate_t(struct task_struct * task);
typedef void ia64_mv_pci_fixup_bus_t (struct pci_bus *);
+typedef void ia64_mv_kernel_launch_event_t(void);
/* DMA-mapping interface: */
typedef void ia64_mv_dma_init (void);
@@ -218,6 +219,7 @@
ia64_mv_setup_msi_irq_t *setup_msi_irq;
ia64_mv_teardown_msi_irq_t *teardown_msi_irq;
ia64_mv_pci_fixup_bus_t *pci_fixup_bus;
+ ia64_mv_kernel_launch_event_t *kernel_launch_event;
} __attribute__((__aligned__(16))); /* align attrib? see above comment */
#define MACHVEC_INIT(name) \
@@ -318,6 +320,9 @@
#ifndef platform_tlb_migrate_finish
# define platform_tlb_migrate_finish machvec_noop_mm
#endif
+#ifndef platform_kernel_launch_event
+# define platform_kernel_launch_event machvec_noop
+#endif
#ifndef platform_dma_init
# define platform_dma_init swiotlb_init
#endif
diff --git a/include/asm-ia64/machvec_sn2.h b/include/asm-ia64/machvec_sn2.h
index 83325f6..eaa2fce 100644
--- a/include/asm-ia64/machvec_sn2.h
+++ b/include/asm-ia64/machvec_sn2.h
@@ -67,6 +67,7 @@
extern ia64_mv_dma_mapping_error sn_dma_mapping_error;
extern ia64_mv_dma_supported sn_dma_supported;
extern ia64_mv_migrate_t sn_migrate;
+extern ia64_mv_kernel_launch_event_t sn_kernel_launch_event;
extern ia64_mv_setup_msi_irq_t sn_setup_msi_irq;
extern ia64_mv_teardown_msi_irq_t sn_teardown_msi_irq;
extern ia64_mv_pci_fixup_bus_t sn_pci_fixup_bus;
@@ -121,6 +122,7 @@
#define platform_dma_mapping_error sn_dma_mapping_error
#define platform_dma_supported sn_dma_supported
#define platform_migrate sn_migrate
+#define platform_kernel_launch_event sn_kernel_launch_event
#ifdef CONFIG_PCI_MSI
#define platform_setup_msi_irq sn_setup_msi_irq
#define platform_teardown_msi_irq sn_teardown_msi_irq
diff --git a/include/asm-ia64/meminit.h b/include/asm-ia64/meminit.h
index c3b1f86..c8df759 100644
--- a/include/asm-ia64/meminit.h
+++ b/include/asm-ia64/meminit.h
@@ -15,11 +15,12 @@
* - initrd (optional)
* - command line string
* - kernel code & data
+ * - crash dumping code reserved region
* - Kernel memory map built from EFI memory map
*
* More could be added if necessary
*/
-#define IA64_MAX_RSVD_REGIONS 6
+#define IA64_MAX_RSVD_REGIONS 7
struct rsvd_region {
unsigned long start; /* virtual address of beginning of element */
diff --git a/include/asm-ia64/sn/sn_sal.h b/include/asm-ia64/sn/sn_sal.h
index be5d83a..2c4004e 100644
--- a/include/asm-ia64/sn/sn_sal.h
+++ b/include/asm-ia64/sn/sn_sal.h
@@ -88,6 +88,8 @@
#define SN_SAL_INJECT_ERROR 0x02000067
#define SN_SAL_SET_CPU_NUMBER 0x02000068
+#define SN_SAL_KERNEL_LAUNCH_EVENT 0x02000069
+
/*
* Service-specific constants
*/
@@ -1155,4 +1157,11 @@
SAL_CALL_NOLOCK(rv, SN_SAL_SET_CPU_NUMBER, cpu, 0, 0, 0, 0, 0, 0);
return rv.status;
}
+static inline int
+ia64_sn_kernel_launch_event(void)
+{
+ struct ia64_sal_retval rv;
+ SAL_CALL_NOLOCK(rv, SN_SAL_KERNEL_LAUNCH_EVENT, 0, 0, 0, 0, 0, 0, 0);
+ return rv.status;
+}
#endif /* _ASM_IA64_SN_SN_SAL_H */
diff --git a/include/linux/kexec.h b/include/linux/kexec.h
index a4ede62..e14cd38 100644
--- a/include/linux/kexec.h
+++ b/include/linux/kexec.h
@@ -108,6 +108,10 @@
extern struct kimage *kexec_image;
extern struct kimage *kexec_crash_image;
+#ifndef kexec_flush_icache_page
+#define kexec_flush_icache_page(page)
+#endif
+
#define KEXEC_ON_CRASH 0x00000001
#define KEXEC_ARCH_MASK 0xffff0000
@@ -133,6 +137,7 @@
typedef u32 note_buf_t[MAX_NOTE_BYTES/4];
extern note_buf_t *crash_notes;
+
#else /* !CONFIG_KEXEC */
struct pt_regs;
struct task_struct;