From 289cc5b04163f9443f5396e3a951f5e940a18925 Mon Sep 17 00:00:00 2001 From: Vladimir 'phcoder' Serbinenko Date: Fri, 19 Apr 2013 15:27:09 +0200 Subject: [PATCH 329/471] * grub-core/kern/ieee1275/init.c (grub_claim_heap): Improve handling of GRUB_IEEE1275_FLAG_FORCE_CLAIM. * grub-core/loader/powerpc/ieee1275/linux.c (grub_linux_claimmap_iterate): Handle GRUB_IEEE1275_FLAG_FORCE_CLAIM. --- ChangeLog | 7 +++++++ grub-core/kern/ieee1275/init.c | 5 +++-- grub-core/lib/ieee1275/relocator.c | 4 ++-- grub-core/loader/powerpc/ieee1275/linux.c | 14 ++++++++++++++ include/grub/ieee1275/ieee1275.h | 8 ++++++++ 5 files changed, 34 insertions(+), 4 deletions(-) diff --git a/ChangeLog b/ChangeLog index 488be60..3e606cb 100644 --- a/ChangeLog +++ b/ChangeLog @@ -1,5 +1,12 @@ 2013-04-19 Vladimir Serbinenko + * grub-core/kern/ieee1275/init.c (grub_claim_heap): Improve handling + of GRUB_IEEE1275_FLAG_FORCE_CLAIM. + * grub-core/loader/powerpc/ieee1275/linux.c + (grub_linux_claimmap_iterate): Handle GRUB_IEEE1275_FLAG_FORCE_CLAIM. + +2013-04-19 Vladimir Serbinenko + * grub-core/kern/ieee1275/cmain.c (grub_ieee1275_find_options): Look for /boot-rom as well as /rom/boot-rom. diff --git a/grub-core/kern/ieee1275/init.c b/grub-core/kern/ieee1275/init.c index 391a734..ce8eadb 100644 --- a/grub-core/kern/ieee1275/init.c +++ b/grub-core/kern/ieee1275/init.c @@ -225,8 +225,9 @@ grub_claim_heap (void) { unsigned long total = 0; - if (grub_ieee1275_test_flag (GRUB_IEEE1275_FLAG_CANNOT_INTERPRET)) - heap_init (HEAP_MAX_ADDR - HEAP_MIN_SIZE, HEAP_MIN_SIZE, 1, &total); + if (grub_ieee1275_test_flag (GRUB_IEEE1275_FLAG_FORCE_CLAIM)) + heap_init (GRUB_IEEE1275_STATIC_HEAP_START, GRUB_IEEE1275_STATIC_HEAP_LEN, + 1, &total); else grub_machine_mmap_iterate (heap_init, &total); } diff --git a/grub-core/lib/ieee1275/relocator.c b/grub-core/lib/ieee1275/relocator.c index f6ecadd..c6dd8fa 100644 --- a/grub-core/lib/ieee1275/relocator.c +++ b/grub-core/lib/ieee1275/relocator.c @@ -38,7 +38,7 @@ grub_relocator_firmware_get_max_events (void) { int counter = 0; - if (grub_ieee1275_test_flag (GRUB_IEEE1275_FLAG_CANNOT_INTERPRET)) + if (grub_ieee1275_test_flag (GRUB_IEEE1275_FLAG_FORCE_CLAIM)) return 0; grub_machine_mmap_iterate (count, &counter); return 2 * counter; @@ -92,7 +92,7 @@ grub_relocator_firmware_fill_events (struct grub_relocator_mmap_event *events) .counter = 0 }; - if (grub_ieee1275_test_flag (GRUB_IEEE1275_FLAG_CANNOT_INTERPRET)) + if (grub_ieee1275_test_flag (GRUB_IEEE1275_FLAG_FORCE_CLAIM)) return 0; grub_machine_mmap_iterate (grub_relocator_firmware_fill_events_iter, &ctx); return ctx.counter; diff --git a/grub-core/loader/powerpc/ieee1275/linux.c b/grub-core/loader/powerpc/ieee1275/linux.c index 3356d51..4a14f66 100644 --- a/grub-core/loader/powerpc/ieee1275/linux.c +++ b/grub-core/loader/powerpc/ieee1275/linux.c @@ -111,6 +111,20 @@ grub_linux_claimmap_iterate (grub_addr_t target, grub_size_t size, .found_addr = (grub_addr_t) -1 }; + if (grub_ieee1275_test_flag (GRUB_IEEE1275_FLAG_FORCE_CLAIM)) + { + grub_uint64_t addr = target; + if (addr < GRUB_IEEE1275_STATIC_HEAP_START + + GRUB_IEEE1275_STATIC_HEAP_LEN) + addr = GRUB_IEEE1275_STATIC_HEAP_START + + GRUB_IEEE1275_STATIC_HEAP_LEN; + addr = ALIGN_UP (addr, align); + if (grub_claimmap (addr, size) == GRUB_ERR_NONE) + return addr; + return (grub_addr_t) -1; + } + + grub_machine_mmap_iterate (alloc_mem, &ctx); return ctx.found_addr; diff --git a/include/grub/ieee1275/ieee1275.h b/include/grub/ieee1275/ieee1275.h index 1e8ba6f..1b240d3 100644 --- a/include/grub/ieee1275/ieee1275.h +++ b/include/grub/ieee1275/ieee1275.h @@ -78,6 +78,14 @@ extern grub_ieee1275_phandle_t EXPORT_VAR(grub_ieee1275_chosen); extern grub_ieee1275_ihandle_t EXPORT_VAR(grub_ieee1275_mmu); extern int (* EXPORT_VAR(grub_ieee1275_entry_fn)) (void *); +/* Static heap, used only if FORCE_CLAIM is set, + happens on Open Hack'Ware. Should be in platform-specific + header but is used only on PPC anyway. +*/ +#define GRUB_IEEE1275_STATIC_HEAP_START 0x1000000 +#define GRUB_IEEE1275_STATIC_HEAP_LEN 0x1000000 + + enum grub_ieee1275_flag { /* Old World Macintosh firmware fails seek when "dev:0" is opened. */ -- 1.8.2.1