arm64: kernel: Add support for hibernate/suspend-to-disk

[firefly-linux-kernel-4.4.55.git] / arch / arm64 / kernel / vmlinux.lds.S

diff --git a/arch/arm64/kernel/vmlinux.lds.S b/arch/arm64/kernel/vmlinux.lds.S
index 71426a78db123d13e98acf8659d65155ff342a06..e2d63ed9c361c951fc3bc5969ada3bfb652960cf 100644 (file)
--- a/arch/arm64/kernel/vmlinux.lds.S
+++ b/arch/arm64/kernel/vmlinux.lds.S
@@ -46,6 +46,16 @@ jiffies = jiffies_64;
        *(.idmap.text)                                  \
        VMLINUX_SYMBOL(__idmap_text_end) = .;
 
+#ifdef CONFIG_HIBERNATION
+#define HIBERNATE_TEXT                                 \
+       . = ALIGN(SZ_4K);                               \
+       VMLINUX_SYMBOL(__hibernate_exit_text_start) = .;\
+       *(.hibernate_exit.text)                         \
+       VMLINUX_SYMBOL(__hibernate_exit_text_end) = .;
+#else
+#define HIBERNATE_TEXT
+#endif
+
 /*
  * The size of the PE/COFF section that covers the kernel image, which
  * runs from stext to _edata, must be a round multiple of the PE/COFF
@@ -102,11 +112,14 @@ SECTIONS
                        *(.exception.text)
                        __exception_text_end = .;
                        IRQENTRY_TEXT
+                       ENTRY_TEXT
                        TEXT_TEXT
                        SCHED_TEXT
                        LOCK_TEXT
+                       KPROBES_TEXT
                        HYPERVISOR_TEXT
                        IDMAP_TEXT
+                       HIBERNATE_TEXT
                        *(.fixup)
                        *(.gnu.warning)
                . = ALIGN(16);
@@ -143,9 +156,6 @@ SECTIONS
 
        PERCPU_SECTION(L1_CACHE_BYTES)
 
-       . = ALIGN(PAGE_SIZE);
-       __init_end = .;
-
        . = ALIGN(4);
        .altinstructions : {
                __alt_instructions = .;
@@ -157,6 +167,8 @@ SECTIONS
        }
 
        . = ALIGN(PAGE_SIZE);
+       __init_end = .;
+
        _data = .;
        _sdata = .;
        RW_DATA_SECTION(L1_CACHE_BYTES, PAGE_SIZE, THREAD_SIZE)
@@ -186,6 +198,10 @@ ASSERT(__hyp_idmap_text_end - (__hyp_idmap_text_start & ~(SZ_4K - 1)) <= SZ_4K,
        "HYP init code too big or misaligned")
 ASSERT(__idmap_text_end - (__idmap_text_start & ~(SZ_4K - 1)) <= SZ_4K,
        "ID map text too big or misaligned")
+#ifdef CONFIG_HIBERNATION
+ASSERT(__hibernate_exit_text_end - (__hibernate_exit_text_start & ~(SZ_4K - 1))
+       <= SZ_4K, "Hibernate exit text too big or misaligned")
+#endif
 
 /*
  * If padding is applied before .head.text, virt<->phys conversions will fail.