[SPARC64]: Make IVEC pointers 64-bit.

Currently we chain IVEC entries using 32-bit "pointers"
because we know that the ivector_table is in the main
kernel image, thus below 4GB.

This uses proper 64-bit pointers instead.

Whilst this bloats up the kernel image size, this sets
the infrastructure necessary to significantly shrink the
kernel size by using physical addresses and dynamically
allocating the ivector table.

Signed-off-by: David S. Miller <davem@davemloft.net>

2 files changed, 6 insertions, 7 deletions

diff --git a/include/asm-sparc64/cpudata.h b/include/asm-sparc64/cpudata.h
index 98a6e609163e..379c219c3b7a 100644
--- a/include/asm-sparc64/cpudata.h
+++ b/include/asm-sparc64/cpudata.h
@@ -75,12 +75,11 @@ struct trap_per_cpu {
         unsigned long           tsb_huge_temp;
 
 /* Dcache line 8: IRQ work list, and keep trap_block a power-of-2 in size.  */
-        unsigned int            irq_worklist;
+        unsigned long           irq_worklist;
         unsigned int            cpu_mondo_qmask;
         unsigned int            dev_mondo_qmask;
         unsigned int            resum_qmask;
         unsigned int            nonresum_qmask;
-        unsigned int            __pad2[1];
         void                    *hdesc;
 } __attribute__((aligned(64)));
 extern struct trap_per_cpu trap_block[NR_CPUS];
@@ -129,10 +128,10 @@ extern struct sun4v_2insn_patch_entry __sun4v_2insn_patch,
 #define TRAP_PER_CPU_TSB_HUGE           0xd0
 #define TRAP_PER_CPU_TSB_HUGE_TEMP      0xd8
 #define TRAP_PER_CPU_IRQ_WORKLIST       0xe0
-#define TRAP_PER_CPU_CPU_MONDO_QMASK    0xe4
-#define TRAP_PER_CPU_DEV_MONDO_QMASK    0xe8
-#define TRAP_PER_CPU_RESUM_QMASK        0xec
-#define TRAP_PER_CPU_NONRESUM_QMASK     0xf0
+#define TRAP_PER_CPU_CPU_MONDO_QMASK    0xe8
+#define TRAP_PER_CPU_DEV_MONDO_QMASK    0xec
+#define TRAP_PER_CPU_RESUM_QMASK        0xf0
+#define TRAP_PER_CPU_NONRESUM_QMASK     0xf4
 
 #define TRAP_BLOCK_SZ_SHIFT             8
 
diff --git a/include/asm-sparc64/irq.h b/include/asm-sparc64/irq.h
index bad3c28cdee8..24841c22e81b 100644
--- a/include/asm-sparc64/irq.h
+++ b/include/asm-sparc64/irq.h
@@ -59,7 +59,7 @@ extern unsigned int sun4u_build_msi(u32 portid, unsigned int *virt_irq_p,
 extern void sun4u_destroy_msi(unsigned int virt_irq);
 extern unsigned int sbus_build_irq(void *sbus, unsigned int ino);
 
-extern unsigned char virt_irq_alloc(unsigned int real_irq);
+extern unsigned char virt_irq_alloc(unsigned long real_irq);
 #ifdef CONFIG_PCI_MSI
 extern void virt_irq_free(unsigned int virt_irq);
 #endif