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-rw-r--r--arch/ppc/kernel/cputable.c20
-rw-r--r--arch/ppc/kernel/entry.S1
-rw-r--r--arch/ppc/kernel/head_44x.S24
-rw-r--r--arch/ppc/kernel/head_8xx.S12
-rw-r--r--arch/ppc/kernel/misc.S4
-rw-r--r--arch/ppc/kernel/pci.c15
-rw-r--r--arch/ppc/kernel/ppc_ksyms.c2
7 files changed, 64 insertions, 14 deletions
diff --git a/arch/ppc/kernel/cputable.c b/arch/ppc/kernel/cputable.c
index 50936cda0af..8a3d74f2531 100644
--- a/arch/ppc/kernel/cputable.c
+++ b/arch/ppc/kernel/cputable.c
@@ -852,6 +852,26 @@ struct cpu_spec cpu_specs[] = {
#endif /* CONFIG_40x */
#ifdef CONFIG_44x
+ {
+ .pvr_mask = 0xf0000fff,
+ .pvr_value = 0x40000850,
+ .cpu_name = "440EP Rev. A",
+ .cpu_features = CPU_FTR_SPLIT_ID_CACHE |
+ CPU_FTR_USE_TB,
+ .cpu_user_features = COMMON_PPC, /* 440EP has an FPU */
+ .icache_bsize = 32,
+ .dcache_bsize = 32,
+ },
+ {
+ .pvr_mask = 0xf0000fff,
+ .pvr_value = 0x400008d3,
+ .cpu_name = "440EP Rev. B",
+ .cpu_features = CPU_FTR_SPLIT_ID_CACHE |
+ CPU_FTR_USE_TB,
+ .cpu_user_features = COMMON_PPC, /* 440EP has an FPU */
+ .icache_bsize = 32,
+ .dcache_bsize = 32,
+ },
{ /* 440GP Rev. B */
.pvr_mask = 0xf0000fff,
.pvr_value = 0x40000440,
diff --git a/arch/ppc/kernel/entry.S b/arch/ppc/kernel/entry.S
index d4df68629cc..cb83045e2ed 100644
--- a/arch/ppc/kernel/entry.S
+++ b/arch/ppc/kernel/entry.S
@@ -215,6 +215,7 @@ syscall_dotrace_cont:
lwzx r10,r10,r0 /* Fetch system call handler [ptr] */
mtlr r10
addi r9,r1,STACK_FRAME_OVERHEAD
+ PPC440EP_ERR42
blrl /* Call handler */
.globl ret_from_syscall
ret_from_syscall:
diff --git a/arch/ppc/kernel/head_44x.S b/arch/ppc/kernel/head_44x.S
index 6c7ae605246..69ff3a9961e 100644
--- a/arch/ppc/kernel/head_44x.S
+++ b/arch/ppc/kernel/head_44x.S
@@ -179,24 +179,26 @@ skpinv: addi r4,r4,1 /* Increment */
4:
#ifdef CONFIG_SERIAL_TEXT_DEBUG
/*
- * Add temporary UART mapping for early debug. This
- * mapping must be identical to that used by the early
- * bootloader code since the same asm/serial.h parameters
- * are used for polled operation.
+ * Add temporary UART mapping for early debug.
+ * We can map UART registers wherever we want as long as they don't
+ * interfere with other system mappings (e.g. with pinned entries).
+ * For an example of how we handle this - see ocotea.h. --ebs
*/
/* pageid fields */
lis r3,UART0_IO_BASE@h
- ori r3,r3,PPC44x_TLB_VALID | PPC44x_TLB_256M
+ ori r3,r3,PPC44x_TLB_VALID | PPC44x_TLB_4K
/* xlat fields */
lis r4,UART0_PHYS_IO_BASE@h /* RPN depends on SoC */
+#ifndef CONFIG_440EP
ori r4,r4,0x0001 /* ERPN is 1 for second 4GB page */
+#endif
/* attrib fields */
li r5,0
ori r5,r5,(PPC44x_TLB_SW | PPC44x_TLB_SR | PPC44x_TLB_I | PPC44x_TLB_G)
- li r0,1 /* TLB slot 1 */
+ li r0,0 /* TLB slot 0 */
tlbwe r3,r0,PPC44x_TLB_PAGEID /* Load the pageid fields */
tlbwe r4,r0,PPC44x_TLB_XLAT /* Load the translation fields */
@@ -228,6 +230,16 @@ skpinv: addi r4,r4,1 /* Increment */
lis r4,interrupt_base@h /* IVPR only uses the high 16-bits */
mtspr SPRN_IVPR,r4
+#ifdef CONFIG_440EP
+ /* Clear DAPUIB flag in CCR0 (enable APU between CPU and FPU) */
+ mfspr r2,SPRN_CCR0
+ lis r3,0xffef
+ ori r3,r3,0xffff
+ and r2,r2,r3
+ mtspr SPRN_CCR0,r2
+ isync
+#endif
+
/*
* This is where the main kernel code starts.
*/
diff --git a/arch/ppc/kernel/head_8xx.S b/arch/ppc/kernel/head_8xx.S
index 5a7a64e91fc..eb18cadb375 100644
--- a/arch/ppc/kernel/head_8xx.S
+++ b/arch/ppc/kernel/head_8xx.S
@@ -288,13 +288,11 @@ SystemCall:
* For the MPC8xx, this is a software tablewalk to load the instruction
* TLB. It is modelled after the example in the Motorola manual. The task
* switch loads the M_TWB register with the pointer to the first level table.
- * If we discover there is no second level table (the value is zero), the
- * plan was to load that into the TLB, which causes another fault into the
- * TLB Error interrupt where we can handle such problems. However, that did
- * not work, so if we discover there is no second level table, we restore
- * registers and branch to the error exception. We have to use the MD_xxx
- * registers for the tablewalk because the equivalent MI_xxx registers
- * only perform the attribute functions.
+ * If we discover there is no second level table (value is zero) or if there
+ * is an invalid pte, we load that into the TLB, which causes another fault
+ * into the TLB Error interrupt where we can handle such problems.
+ * We have to use the MD_xxx registers for the tablewalk because the
+ * equivalent MI_xxx registers only perform the attribute functions.
*/
InstructionTLBMiss:
#ifdef CONFIG_8xx_CPU6
diff --git a/arch/ppc/kernel/misc.S b/arch/ppc/kernel/misc.S
index 191a8def3bd..ce71b4a0158 100644
--- a/arch/ppc/kernel/misc.S
+++ b/arch/ppc/kernel/misc.S
@@ -1145,6 +1145,7 @@ _GLOBAL(kernel_thread)
stwu r0,-16(r1)
mtlr r30 /* fn addr in lr */
mr r3,r31 /* load arg and call fn */
+ PPC440EP_ERR42
blrl
li r0,__NR_exit /* exit if function returns */
li r3,0
@@ -1451,3 +1452,6 @@ _GLOBAL(sys_call_table)
.long sys_waitid
.long sys_ioprio_set
.long sys_ioprio_get
+ .long sys_inotify_init /* 275 */
+ .long sys_inotify_add_watch
+ .long sys_inotify_rm_watch
diff --git a/arch/ppc/kernel/pci.c b/arch/ppc/kernel/pci.c
index 70cfb6ffd87..7b3586a3bf3 100644
--- a/arch/ppc/kernel/pci.c
+++ b/arch/ppc/kernel/pci.c
@@ -160,6 +160,21 @@ void pcibios_resource_to_bus(struct pci_dev *dev, struct pci_bus_region *region,
}
EXPORT_SYMBOL(pcibios_resource_to_bus);
+void pcibios_bus_to_resource(struct pci_dev *dev, struct resource *res,
+ struct pci_bus_region *region)
+{
+ unsigned long offset = 0;
+ struct pci_controller *hose = dev->sysdata;
+
+ if (hose && res->flags & IORESOURCE_IO)
+ offset = (unsigned long)hose->io_base_virt - isa_io_base;
+ else if (hose && res->flags & IORESOURCE_MEM)
+ offset = hose->pci_mem_offset;
+ res->start = region->start + offset;
+ res->end = region->end + offset;
+}
+EXPORT_SYMBOL(pcibios_bus_to_resource);
+
/*
* We need to avoid collisions with `mirrored' VGA ports
* and other strange ISA hardware, so we always want the
diff --git a/arch/ppc/kernel/ppc_ksyms.c b/arch/ppc/kernel/ppc_ksyms.c
index d59ad07de8e..e7d40cc6c1b 100644
--- a/arch/ppc/kernel/ppc_ksyms.c
+++ b/arch/ppc/kernel/ppc_ksyms.c
@@ -324,7 +324,7 @@ EXPORT_SYMBOL(__res);
EXPORT_SYMBOL(next_mmu_context);
EXPORT_SYMBOL(set_context);
-EXPORT_SYMBOL(handle_mm_fault); /* For MOL */
+EXPORT_SYMBOL_GPL(__handle_mm_fault); /* For MOL */
EXPORT_SYMBOL(disarm_decr);
#ifdef CONFIG_PPC_STD_MMU
extern long mol_trampoline;
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-12-17 06:33:51 +0000