powerpc: Move default hash table size calculation to hash_utils_64.c

We weren't computing the size of the hash table correctly on iSeries
because the relevant code in prom.c was #ifdef CONFIG_PPC_PSERIES.
This moves the code to hash_utils_64.c, makes it unconditional, and
cleans it up a bit.

Signed-off-by: Paul Mackerras <paulus@samba.org>

1 files changed, 0 insertions, 20 deletions

diff --git a/arch/powerpc/kernel/prom.c b/arch/powerpc/kernel/prom.c
index ce0dff1caa80..c8d288457b4c 100644
--- a/arch/powerpc/kernel/prom.c
+++ b/arch/powerpc/kernel/prom.c
@@ -1323,26 +1323,6 @@ void __init early_init_devtree(void *params)
          */
         scan_flat_dt(early_init_dt_scan_cpus, NULL);
 
-#ifdef CONFIG_PPC_PSERIES
-        /* If hash size wasn't obtained above, we calculate it now based on
-         * the total RAM size
-         */
-        if (ppc64_pft_size == 0) {
-                unsigned long rnd_mem_size, pteg_count;
-
-                /* round mem_size up to next power of 2 */
-                rnd_mem_size = 1UL << __ilog2(systemcfg->physicalMemorySize);
-                if (rnd_mem_size < systemcfg->physicalMemorySize)
-                        rnd_mem_size <<= 1;
-
-                /* # pages / 2 */
-                pteg_count = max(rnd_mem_size >> (12 + 1), 1UL << 11);
-
-                ppc64_pft_size = __ilog2(pteg_count << 7);
-        }
-
-        DBG("Hash pftSize: %x\n", (int)ppc64_pft_size);
-#endif
         DBG(" <- early_init_devtree()\n");
 }