These will be used for stack allocation for secondary CPUs. Signed-off-by: Nicholas Piggin <npiggin@xxxxxxxxx> --- lib/powerpc/setup.c | 8 ++++++++ powerpc/Makefile.common | 1 + 2 files changed, 9 insertions(+) diff --git a/lib/powerpc/setup.c b/lib/powerpc/setup.c index 58be93f08..73ca2f931 100644 --- a/lib/powerpc/setup.c +++ b/lib/powerpc/setup.c @@ -15,6 +15,7 @@ #include <devicetree.h> #include <alloc.h> #include <alloc_phys.h> +#include <alloc_page.h> #include <argv.h> #include <asm/setup.h> #include <asm/page.h> @@ -133,6 +134,7 @@ static void mem_init(phys_addr_t freemem_start) .start = (phys_addr_t)-1, }; int nr_regs, i; + phys_addr_t base, top; nr_regs = dt_get_memory_params(regs, NR_MEM_REGIONS); assert(nr_regs > 0); @@ -170,6 +172,12 @@ static void mem_init(phys_addr_t freemem_start) phys_alloc_init(freemem_start, primary.end - freemem_start); phys_alloc_set_minimum_alignment(__icache_bytes > __dcache_bytes ? __icache_bytes : __dcache_bytes); + + phys_alloc_get_unused(&base, &top); + base = PAGE_ALIGN(base); + top &= PAGE_MASK; + page_alloc_init_area(0, base >> PAGE_SHIFT, top >> PAGE_SHIFT); + page_alloc_ops_enable(); } #define EXCEPTION_STACK_SIZE SZ_64K diff --git a/powerpc/Makefile.common b/powerpc/Makefile.common index 68165fc25..6374418d2 100644 --- a/powerpc/Makefile.common +++ b/powerpc/Makefile.common @@ -38,6 +38,7 @@ cflatobjs += lib/util.o cflatobjs += lib/getchar.o cflatobjs += lib/alloc_phys.o cflatobjs += lib/alloc.o +cflatobjs += lib/alloc_page.o cflatobjs += lib/devicetree.o cflatobjs += lib/migrate.o cflatobjs += lib/powerpc/io.o -- 2.43.0
