[POWERPC] iSeries: Localise and constify some iSeries data

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>

diff --git a/arch/powerpc/platforms/iseries/ipl_parms.h b/arch/powerpc/platforms/iseries/ipl_parms.h
index 77c135d..83e4ca4 100644 (file)
--- a/arch/powerpc/platforms/iseries/ipl_parms.h
+++ b/arch/powerpc/platforms/iseries/ipl_parms.h
@@ -65,6 +65,4 @@ struct ItIplParmsReal {
        u64     xRsvd13;                // Reserved                     x38-x3F
 };
 
-extern struct ItIplParmsReal   xItIplParmsReal;
-
 #endif /* _ISERIES_IPL_PARMS_H */

diff --git a/arch/powerpc/platforms/iseries/lpardata.c b/arch/powerpc/platforms/iseries/lpardata.c
index 2331d97..98bd2d3 100644 (file)
--- a/arch/powerpc/platforms/iseries/lpardata.c
+++ b/arch/powerpc/platforms/iseries/lpardata.c
@@ -31,7 +31,7 @@
 /* The HvReleaseData is the root of the information shared between
  * the hypervisor and Linux.
  */
-struct HvReleaseData hvReleaseData = {
+const struct HvReleaseData hvReleaseData = {
        .xDesc = 0xc8a5d9c4,    /* "HvRD" ebcdic */
        .xSize = sizeof(struct HvReleaseData),
        .xVpdAreasPtrOffset = offsetof(struct naca_struct, xItVpdAreas),
@@ -186,7 +186,7 @@ struct ItLpNaca itLpNaca = {
 };
 
 /* May be filled in by the hypervisor so cannot end up in the BSS */
-struct ItIplParmsReal xItIplParmsReal __attribute__((__section__(".data")));
+static struct ItIplParmsReal xItIplParmsReal __attribute__((__section__(".data")));
 
 /* May be filled in by the hypervisor so cannot end up in the BSS */
 struct ItExtVpdPanel xItExtVpdPanel __attribute__((__section__(".data")));
@@ -209,14 +209,14 @@ u64    xMsVpd[3400] __attribute__((__section__(".data")));
 
 /* Space for Recovery Log Buffer */
 /* May be filled in by the hypervisor so cannot end up in the BSS */
-u64    xRecoveryLogBuffer[32] __attribute__((__section__(".data")));
+static u64    xRecoveryLogBuffer[32] __attribute__((__section__(".data")));
 
-struct SpCommArea xSpCommArea = {
+static const struct SpCommArea xSpCommArea = {
        .xDesc = 0xE2D7C3C2,
        .xFormat = 1,
 };
 
-static struct ItLpRegSave iseries_reg_save[] = {
+static const struct ItLpRegSave iseries_reg_save[] = {
        [0 ... (NR_CPUS-1)] = {
                .xDesc = 0xd397d9e2,    /* "LpRS" */
                .xSize = sizeof(struct ItLpRegSave),
@@ -229,7 +229,7 @@ static struct ItLpRegSave iseries_reg_save[] = {
        .reg_save_ptr = &iseries_reg_save[number],                      \
 }
 
-struct alpaca alpaca[] = {
+const struct alpaca alpaca[] = {
        ALPACA_INIT( 0),
 #if NR_CPUS > 1
        ALPACA_INIT( 1), ALPACA_INIT( 2), ALPACA_INIT( 3),
@@ -265,7 +265,7 @@ struct alpaca alpaca[] = {
  * the Naca via the HvReleaseData area.  The HvReleaseData has the
  * offset into the Naca of the pointer to the ItVpdAreas.
  */
-struct ItVpdAreas itVpdAreas = {
+const struct ItVpdAreas itVpdAreas = {
        .xSlicDesc = 0xc9a3e5c1,                /* "ItVA" */
        .xSlicSize = sizeof(struct ItVpdAreas),
        .xSlicVpdEntries = ItVpdMaxEntries,     /* # VPD array entries */

diff --git a/arch/powerpc/platforms/iseries/naca.h b/arch/powerpc/platforms/iseries/naca.h
index ab2372e..f01708e 100644 (file)
--- a/arch/powerpc/platforms/iseries/naca.h
+++ b/arch/powerpc/platforms/iseries/naca.h
@@ -14,7 +14,7 @@
 
 struct naca_struct {
        /* Kernel only data - undefined for user space */
-       void *xItVpdAreas;              /* VPD Data                  0x00 */
+       const void *xItVpdAreas;        /* VPD Data                  0x00 */
        void *xRamDisk;                 /* iSeries ramdisk           0x08 */
        u64   xRamDiskSize;             /* In pages                  0x10 */
 };

diff --git a/arch/powerpc/platforms/iseries/release_data.h b/arch/powerpc/platforms/iseries/release_data.h
index 66189fd..6ad7d84 100644 (file)
--- a/arch/powerpc/platforms/iseries/release_data.h
+++ b/arch/powerpc/platforms/iseries/release_data.h
@@ -58,6 +58,6 @@ struct HvReleaseData {
        char    xRsvd3[20];     /* Reserved                     x2C-x3F */
 };
 
-extern struct HvReleaseData    hvReleaseData;
+extern const struct HvReleaseData      hvReleaseData;
 
 #endif /* _ISERIES_RELEASE_DATA_H */

diff --git a/arch/powerpc/platforms/iseries/spcomm_area.h b/arch/powerpc/platforms/iseries/spcomm_area.h
index 6e3b685..598b7c1 100644 (file)
--- a/arch/powerpc/platforms/iseries/spcomm_area.h
+++ b/arch/powerpc/platforms/iseries/spcomm_area.h
@@ -31,6 +31,4 @@ struct SpCommArea {
        u8      xRsvd2[80];             // Reserved                             030-07F
 };
 
-extern struct SpCommArea xSpCommArea;
-
 #endif /* _ISERIES_SPCOMM_AREA_H */

diff --git a/arch/powerpc/platforms/iseries/vpd_areas.h b/arch/powerpc/platforms/iseries/vpd_areas.h
index 601e6dd..feb001f 100644 (file)
--- a/arch/powerpc/platforms/iseries/vpd_areas.h
+++ b/arch/powerpc/platforms/iseries/vpd_areas.h
@@ -80,9 +80,9 @@ struct ItVpdAreas {
        u32     xPlicDmaLens[ItDmaMaxEntries];// Array of DMA lengths   080-0A7
        u32     xPlicDmaToks[ItDmaMaxEntries];// Array of DMA tokens    0A8-0CF
        u32     xSlicVpdLens[ItVpdMaxEntries];// Array of VPD lengths   0D0-12F
-       void    *xSlicVpdAdrs[ItVpdMaxEntries];// Array of VPD buffers  130-1EF
+       const void *xSlicVpdAdrs[ItVpdMaxEntries];// Array of VPD buffers 130-1EF
 };
 
-extern struct ItVpdAreas       itVpdAreas;
+extern const struct ItVpdAreas itVpdAreas;
 
 #endif /* _ISERIES_VPD_AREAS_H */

diff --git a/include/asm-powerpc/iseries/alpaca.h b/include/asm-powerpc/iseries/alpaca.h
index 26fc081..c0cce67 100644 (file)
--- a/include/asm-powerpc/iseries/alpaca.h
+++ b/include/asm-powerpc/iseries/alpaca.h
@@ -25,7 +25,7 @@
  */
 struct alpaca {
        struct lppaca *lppaca_ptr;      /* Pointer to LpPaca for PLIC */
-       void *reg_save_ptr;             /* Pointer to LpRegSave for PLIC */
+       const void *reg_save_ptr;       /* Pointer to LpRegSave for PLIC */
 };
 
 #endif /* _ASM_POWERPC_ISERIES_ALPACA_H */