Merge master.kernel.org:/pub/scm/linux/kernel/git/torvalds/linux-2.6 into for-linus

[linux-2.6] / arch / powerpc / mm / hash_utils_64.c

diff --git a/arch/powerpc/mm/hash_utils_64.c b/arch/powerpc/mm/hash_utils_64.c
index 7b4cacb0d4ba7f0079416cdf979aa9761fed2693..a83dfa3cf40c562cd8d0218c0efb903d60303a47 100644 (file)
--- a/arch/powerpc/mm/hash_utils_64.c
+++ b/arch/powerpc/mm/hash_utils_64.c
@@ -351,9 +351,14 @@ static void __init htab_init_page_sizes(void)
                mmu_vmalloc_psize = MMU_PAGE_64K;
                if (mmu_linear_psize == MMU_PAGE_4K)
                        mmu_linear_psize = MMU_PAGE_64K;
-               if (cpu_has_feature(CPU_FTR_CI_LARGE_PAGE))
-                       mmu_io_psize = MMU_PAGE_64K;
-               else
+               if (cpu_has_feature(CPU_FTR_CI_LARGE_PAGE)) {
+                       /*
+                        * Don't use 64k pages for ioremap on pSeries, since
+                        * that would stop us accessing the HEA ethernet.
+                        */
+                       if (!machine_is(pseries))
+                               mmu_io_psize = MMU_PAGE_64K;
+               } else
                        mmu_ci_restrictions = 1;
        }
 #endif /* CONFIG_PPC_64K_PAGES */
@@ -471,7 +476,7 @@ void __init htab_initialize(void)
        unsigned long table;
        unsigned long pteg_count;
        unsigned long mode_rw;
-       unsigned long base = 0, size = 0;
+       unsigned long base = 0, size = 0, limit;
        int i;
 
        extern unsigned long tce_alloc_start, tce_alloc_end;
@@ -505,9 +510,15 @@ void __init htab_initialize(void)
                _SDR1 = 0; 
        } else {
                /* Find storage for the HPT.  Must be contiguous in
-                * the absolute address space.
+                * the absolute address space. On cell we want it to be
+                * in the first 2 Gig so we can use it for IOMMU hacks.
                 */
-               table = lmb_alloc(htab_size_bytes, htab_size_bytes);
+               if (machine_is(cell))
+                       limit = 0x80000000;
+               else
+                       limit = 0;
+
+               table = lmb_alloc_base(htab_size_bytes, htab_size_bytes, limit);
 
                DBG("Hash table allocated at %lx, size: %lx\n", table,
                    htab_size_bytes);