aboutsummaryrefslogtreecommitdiff
path: root/arch/powerpc/kernel
diff options
context:
space:
mode:
Diffstat (limited to 'arch/powerpc/kernel')
-rw-r--r--arch/powerpc/kernel/cputable.c16
-rw-r--r--arch/powerpc/kernel/module_64.c16
-rw-r--r--arch/powerpc/kernel/prom_init.c112
-rw-r--r--arch/powerpc/kernel/setup-common.c8
-rw-r--r--arch/powerpc/kernel/setup_64.c8
-rw-r--r--arch/powerpc/kernel/systbl.S13
6 files changed, 157 insertions, 16 deletions
diff --git a/arch/powerpc/kernel/cputable.c b/arch/powerpc/kernel/cputable.c
index 39e348a3ade..3f7182db9ed 100644
--- a/arch/powerpc/kernel/cputable.c
+++ b/arch/powerpc/kernel/cputable.c
@@ -57,6 +57,8 @@ extern void __setup_cpu_ppc970(unsigned long offset, struct cpu_spec* spec);
PPC_FEATURE_SMT | PPC_FEATURE_ICACHE_SNOOP)
#define COMMON_USER_POWER5_PLUS (COMMON_USER_PPC64 | PPC_FEATURE_POWER5_PLUS|\
PPC_FEATURE_SMT | PPC_FEATURE_ICACHE_SNOOP)
+#define COMMON_USER_POWER6 (COMMON_USER_PPC64 | PPC_FEATURE_ARCH_2_05 |\
+ PPC_FEATURE_SMT | PPC_FEATURE_ICACHE_SNOOP)
#define COMMON_USER_BOOKE (PPC_FEATURE_32 | PPC_FEATURE_HAS_MMU | \
PPC_FEATURE_BOOKE)
@@ -263,6 +265,20 @@ struct cpu_spec cpu_specs[] = {
.oprofile_type = PPC_OPROFILE_POWER4,
.platform = "power5+",
},
+ { /* Power6 */
+ .pvr_mask = 0xffff0000,
+ .pvr_value = 0x003e0000,
+ .cpu_name = "POWER6",
+ .cpu_features = CPU_FTRS_POWER6,
+ .cpu_user_features = COMMON_USER_POWER6,
+ .icache_bsize = 128,
+ .dcache_bsize = 128,
+ .num_pmcs = 6,
+ .cpu_setup = __setup_cpu_power4,
+ .oprofile_cpu_type = "ppc64/power6",
+ .oprofile_type = PPC_OPROFILE_POWER4,
+ .platform = "power6",
+ },
{ /* Cell Broadband Engine */
.pvr_mask = 0xffff0000,
.pvr_value = 0x00700000,
diff --git a/arch/powerpc/kernel/module_64.c b/arch/powerpc/kernel/module_64.c
index 928b8581fcb..ba34001fca8 100644
--- a/arch/powerpc/kernel/module_64.c
+++ b/arch/powerpc/kernel/module_64.c
@@ -191,11 +191,19 @@ int module_frob_arch_sections(Elf64_Ehdr *hdr,
(void *)hdr
+ sechdrs[sechdrs[i].sh_link].sh_offset);
}
- if (!me->arch.stubs_section || !me->arch.toc_section) {
- printk("%s: doesn't contain .toc or .stubs.\n", me->name);
+
+ if (!me->arch.stubs_section) {
+ printk("%s: doesn't contain .stubs.\n", me->name);
return -ENOEXEC;
}
+ /* If we don't have a .toc, just use .stubs. We need to set r2
+ to some reasonable value in case the module calls out to
+ other functions via a stub, or if a function pointer escapes
+ the module by some means. */
+ if (!me->arch.toc_section)
+ me->arch.toc_section = me->arch.stubs_section;
+
/* Override the stubs size */
sechdrs[me->arch.stubs_section].sh_size = get_stubs_size(hdr, sechdrs);
return 0;
@@ -342,7 +350,7 @@ int apply_relocate_add(Elf64_Shdr *sechdrs,
break;
case R_PPC64_TOC16:
- /* Subtact TOC pointer */
+ /* Subtract TOC pointer */
value -= my_r2(sechdrs, me);
if (value + 0x8000 > 0xffff) {
printk("%s: bad TOC16 relocation (%lu)\n",
@@ -355,7 +363,7 @@ int apply_relocate_add(Elf64_Shdr *sechdrs,
break;
case R_PPC64_TOC16_DS:
- /* Subtact TOC pointer */
+ /* Subtract TOC pointer */
value -= my_r2(sechdrs, me);
if ((value & 3) != 0 || value + 0x8000 > 0xffff) {
printk("%s: bad TOC16_DS relocation (%lu)\n",
diff --git a/arch/powerpc/kernel/prom_init.c b/arch/powerpc/kernel/prom_init.c
index 7e4d54821a0..078fb553354 100644
--- a/arch/powerpc/kernel/prom_init.c
+++ b/arch/powerpc/kernel/prom_init.c
@@ -636,10 +636,96 @@ static void __init early_cmdline_parse(void)
#ifdef CONFIG_PPC_PSERIES
/*
- * To tell the firmware what our capabilities are, we have to pass
- * it a fake 32-bit ELF header containing a couple of PT_NOTE sections
- * that contain structures that contain the actual values.
+ * There are two methods for telling firmware what our capabilities are.
+ * Newer machines have an "ibm,client-architecture-support" method on the
+ * root node. For older machines, we have to call the "process-elf-header"
+ * method in the /packages/elf-loader node, passing it a fake 32-bit
+ * ELF header containing a couple of PT_NOTE sections that contain
+ * structures that contain various information.
*/
+
+/*
+ * New method - extensible architecture description vector.
+ *
+ * Because the description vector contains a mix of byte and word
+ * values, we declare it as an unsigned char array, and use this
+ * macro to put word values in.
+ */
+#define W(x) ((x) >> 24) & 0xff, ((x) >> 16) & 0xff, \
+ ((x) >> 8) & 0xff, (x) & 0xff
+
+/* Option vector bits - generic bits in byte 1 */
+#define OV_IGNORE 0x80 /* ignore this vector */
+#define OV_CESSATION_POLICY 0x40 /* halt if unsupported option present*/
+
+/* Option vector 1: processor architectures supported */
+#define OV1_PPC_2_00 0x80 /* set if we support PowerPC 2.00 */
+#define OV1_PPC_2_01 0x40 /* set if we support PowerPC 2.01 */
+#define OV1_PPC_2_02 0x20 /* set if we support PowerPC 2.02 */
+#define OV1_PPC_2_03 0x10 /* set if we support PowerPC 2.03 */
+#define OV1_PPC_2_04 0x08 /* set if we support PowerPC 2.04 */
+#define OV1_PPC_2_05 0x04 /* set if we support PowerPC 2.05 */
+
+/* Option vector 2: Open Firmware options supported */
+#define OV2_REAL_MODE 0x20 /* set if we want OF in real mode */
+
+/* Option vector 3: processor options supported */
+#define OV3_FP 0x80 /* floating point */
+#define OV3_VMX 0x40 /* VMX/Altivec */
+
+/* Option vector 5: PAPR/OF options supported */
+#define OV5_LPAR 0x80 /* logical partitioning supported */
+#define OV5_SPLPAR 0x40 /* shared-processor LPAR supported */
+/* ibm,dynamic-reconfiguration-memory property supported */
+#define OV5_DRCONF_MEMORY 0x20
+#define OV5_LARGE_PAGES 0x10 /* large pages supported */
+
+/*
+ * The architecture vector has an array of PVR mask/value pairs,
+ * followed by # option vectors - 1, followed by the option vectors.
+ */
+static unsigned char ibm_architecture_vec[] = {
+ W(0xfffe0000), W(0x003a0000), /* POWER5/POWER5+ */
+ W(0xffff0000), W(0x003e0000), /* POWER6 */
+ W(0xfffffffe), W(0x0f000001), /* all 2.04-compliant and earlier */
+ 5 - 1, /* 5 option vectors */
+
+ /* option vector 1: processor architectures supported */
+ 3 - 1, /* length */
+ 0, /* don't ignore, don't halt */
+ OV1_PPC_2_00 | OV1_PPC_2_01 | OV1_PPC_2_02 | OV1_PPC_2_03 |
+ OV1_PPC_2_04 | OV1_PPC_2_05,
+
+ /* option vector 2: Open Firmware options supported */
+ 34 - 1, /* length */
+ OV2_REAL_MODE,
+ 0, 0,
+ W(0xffffffff), /* real_base */
+ W(0xffffffff), /* real_size */
+ W(0xffffffff), /* virt_base */
+ W(0xffffffff), /* virt_size */
+ W(0xffffffff), /* load_base */
+ W(64), /* 128MB min RMA */
+ W(0xffffffff), /* full client load */
+ 0, /* min RMA percentage of total RAM */
+ 48, /* max log_2(hash table size) */
+
+ /* option vector 3: processor options supported */
+ 3 - 1, /* length */
+ 0, /* don't ignore, don't halt */
+ OV3_FP | OV3_VMX,
+
+ /* option vector 4: IBM PAPR implementation */
+ 2 - 1, /* length */
+ 0, /* don't halt */
+
+ /* option vector 5: PAPR/OF options */
+ 3 - 1, /* length */
+ 0, /* don't ignore, don't halt */
+ OV5_LPAR | OV5_SPLPAR | OV5_LARGE_PAGES,
+};
+
+/* Old method - ELF header with PT_NOTE sections */
static struct fake_elf {
Elf32_Ehdr elfhdr;
Elf32_Phdr phdr[2];
@@ -728,8 +814,26 @@ static struct fake_elf {
static void __init prom_send_capabilities(void)
{
- ihandle elfloader;
+ ihandle elfloader, root;
+ prom_arg_t ret;
+
+ root = call_prom("open", 1, 1, ADDR("/"));
+ if (root != 0) {
+ /* try calling the ibm,client-architecture-support method */
+ if (call_prom_ret("call-method", 3, 2, &ret,
+ ADDR("ibm,client-architecture-support"),
+ ADDR(ibm_architecture_vec)) == 0) {
+ /* the call exists... */
+ if (ret)
+ prom_printf("WARNING: ibm,client-architecture"
+ "-support call FAILED!\n");
+ call_prom("close", 1, 0, root);
+ return;
+ }
+ call_prom("close", 1, 0, root);
+ }
+ /* no ibm,client-architecture-support call, try the old way */
elfloader = call_prom("open", 1, 1, ADDR("/packages/elf-loader"));
if (elfloader == 0) {
prom_printf("couldn't open /packages/elf-loader\n");
diff --git a/arch/powerpc/kernel/setup-common.c b/arch/powerpc/kernel/setup-common.c
index 1d93e73a700..684ab1d49c6 100644
--- a/arch/powerpc/kernel/setup-common.c
+++ b/arch/powerpc/kernel/setup-common.c
@@ -516,3 +516,11 @@ void probe_machine(void)
printk(KERN_INFO "Using %s machine description\n", ppc_md.name);
}
+
+int check_legacy_ioport(unsigned long base_port)
+{
+ if (ppc_md.check_legacy_ioport == NULL)
+ return 0;
+ return ppc_md.check_legacy_ioport(base_port);
+}
+EXPORT_SYMBOL(check_legacy_ioport);
diff --git a/arch/powerpc/kernel/setup_64.c b/arch/powerpc/kernel/setup_64.c
index 13e91c4d70a..4467c49903b 100644
--- a/arch/powerpc/kernel/setup_64.c
+++ b/arch/powerpc/kernel/setup_64.c
@@ -594,14 +594,6 @@ void ppc64_terminate_msg(unsigned int src, const char *msg)
printk("[terminate]%04x %s\n", src, msg);
}
-int check_legacy_ioport(unsigned long base_port)
-{
- if (ppc_md.check_legacy_ioport == NULL)
- return 0;
- return ppc_md.check_legacy_ioport(base_port);
-}
-EXPORT_SYMBOL(check_legacy_ioport);
-
void cpu_die(void)
{
if (ppc_md.cpu_die)
diff --git a/arch/powerpc/kernel/systbl.S b/arch/powerpc/kernel/systbl.S
index 0b98eea73c5..cf56a1d499f 100644
--- a/arch/powerpc/kernel/systbl.S
+++ b/arch/powerpc/kernel/systbl.S
@@ -325,6 +325,19 @@ SYSCALL(unshare)
SYSCALL(splice)
SYSCALL(tee)
SYSCALL(vmsplice)
+COMPAT_SYS(openat)
+SYSCALL(mkdirat)
+SYSCALL(mknodat)
+SYSCALL(fchownat)
+COMPAT_SYS(futimesat)
+SYSX(sys_newfstatat, sys_fstatat64, sys_fstatat64)
+SYSCALL(unlinkat)
+SYSCALL(renameat)
+SYSCALL(linkat)
+SYSCALL(symlinkat)
+SYSCALL(readlinkat)
+SYSCALL(fchmodat)
+SYSCALL(faccessat)
/*
* please add new calls to arch/powerpc/platforms/cell/spu_callbacks.c
generated by cgit v1.2.3 (git 2.25.1) at 2024-09-02 02:32:01 +0000