[PATCH] powerpc: Add ibm,pft-size to iSeries device tree

To make iSeries just a teensy bit less special, create ibm,pft-size properties
in the iSeries device tree. We can then rely on htab_dt_scan_pftsize() to set
ppc64_pft_size for us.

Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>

1 files changed, 11 insertions, 2 deletions

diff --git a/arch/powerpc/platforms/iseries/setup.c b/arch/powerpc/platforms/iseries/setup.c
index 25cdebdf6f2..9dea9f5f930 100644
--- a/arch/powerpc/platforms/iseries/setup.c
+++ b/arch/powerpc/platforms/iseries/setup.c
@@ -473,8 +473,6 @@ static unsigned long __init build_iSeries_Memory_Map(void)
         printk("HPT absolute addr = %016lx, size = %dK\n",
                         chunk_to_addr(hptFirstChunk), hptSizeChunks * 256);
 
-        ppc64_pft_size = __ilog2(hptSizePages * HW_PAGE_SIZE);
-
         /*
          * The actual hashed page table is in the hypervisor,
          * we have no direct access
@@ -860,6 +858,11 @@ void dt_prop_u64_list(struct iseries_flat_dt *dt, char *name, u64 *data, int n)
         dt_prop(dt, name, (char *)data, sizeof(u64) * n);
 }
 
+void dt_prop_u32_list(struct iseries_flat_dt *dt, char *name, u32 *data, int n)
+{
+        dt_prop(dt, name, (char *)data, sizeof(u32) * n);
+}
+
 void dt_prop_empty(struct iseries_flat_dt *dt, char *name)
 {
         dt_prop(dt, name, NULL, 0);
@@ -871,6 +874,7 @@ void dt_cpus(struct iseries_flat_dt *dt)
         unsigned char *p;
         unsigned int i, index;
         struct IoHriProcessorVpd *d;
+        u32 pft_size[2];
 
         /* yuck */
         snprintf(buf, 32, "PowerPC,%s", cur_cpu_spec->cpu_name);
@@ -881,6 +885,9 @@ void dt_cpus(struct iseries_flat_dt *dt)
         dt_prop_u32(dt, "#address-cells", 1);
         dt_prop_u32(dt, "#size-cells", 0);
 
+        pft_size[0] = 0; /* NUMA CEC cookie, 0 for non NUMA  */
+        pft_size[1] = __ilog2(HvCallHpt_getHptPages() * HW_PAGE_SIZE);
+
         for (i = 0; i < NR_CPUS; i++) {
                 if (paca[i].lppaca.dyn_proc_status >= 2)
                         continue;
@@ -907,6 +914,8 @@ void dt_cpus(struct iseries_flat_dt *dt)
 
                 dt_prop_u32(dt, "reg", i);
 
+                dt_prop_u32_list(dt, "ibm,pft-size", pft_size, 2);
+
                 dt_end_node(dt);
         }