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From 00c99f9ffcadba94105b7871744f2a3760b7dd35 Mon Sep 17 00:00:00 2001
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From: Vladimir 'phcoder' Serbinenko <phcoder@gmail.com>
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Date: Fri, 19 Apr 2013 15:27:09 +0200
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Subject: [PATCH 328/364] * grub-core/kern/ieee1275/init.c
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(grub_claim_heap): Improve handling of GRUB_IEEE1275_FLAG_FORCE_CLAIM.
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* grub-core/loader/powerpc/ieee1275/linux.c (grub_linux_claimmap_iterate):
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Handle GRUB_IEEE1275_FLAG_FORCE_CLAIM.
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---
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ChangeLog | 7 +++++++
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grub-core/kern/ieee1275/init.c | 5 +++--
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grub-core/lib/ieee1275/relocator.c | 4 ++--
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grub-core/loader/powerpc/ieee1275/linux.c | 14 ++++++++++++++
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include/grub/ieee1275/ieee1275.h | 8 ++++++++
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5 files changed, 34 insertions(+), 4 deletions(-)
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diff --git a/ChangeLog b/ChangeLog
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index 488be60..3e606cb 100644
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--- a/ChangeLog
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+++ b/ChangeLog
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@@ -1,5 +1,12 @@
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2013-04-19 Vladimir Serbinenko <phcoder@gmail.com>
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+ * grub-core/kern/ieee1275/init.c (grub_claim_heap): Improve handling
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+ of GRUB_IEEE1275_FLAG_FORCE_CLAIM.
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+ * grub-core/loader/powerpc/ieee1275/linux.c
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+ (grub_linux_claimmap_iterate): Handle GRUB_IEEE1275_FLAG_FORCE_CLAIM.
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+
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+2013-04-19 Vladimir Serbinenko <phcoder@gmail.com>
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+
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* grub-core/kern/ieee1275/cmain.c (grub_ieee1275_find_options):
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Look for /boot-rom as well as /rom/boot-rom.
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diff --git a/grub-core/kern/ieee1275/init.c b/grub-core/kern/ieee1275/init.c
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index 391a734..ce8eadb 100644
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--- a/grub-core/kern/ieee1275/init.c
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+++ b/grub-core/kern/ieee1275/init.c
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@@ -225,8 +225,9 @@ grub_claim_heap (void)
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{
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unsigned long total = 0;
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- if (grub_ieee1275_test_flag (GRUB_IEEE1275_FLAG_CANNOT_INTERPRET))
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- heap_init (HEAP_MAX_ADDR - HEAP_MIN_SIZE, HEAP_MIN_SIZE, 1, &total);
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+ if (grub_ieee1275_test_flag (GRUB_IEEE1275_FLAG_FORCE_CLAIM))
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+ heap_init (GRUB_IEEE1275_STATIC_HEAP_START, GRUB_IEEE1275_STATIC_HEAP_LEN,
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+ 1, &total);
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else
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grub_machine_mmap_iterate (heap_init, &total);
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}
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diff --git a/grub-core/lib/ieee1275/relocator.c b/grub-core/lib/ieee1275/relocator.c
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index f6ecadd..c6dd8fa 100644
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--- a/grub-core/lib/ieee1275/relocator.c
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+++ b/grub-core/lib/ieee1275/relocator.c
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@@ -38,7 +38,7 @@ grub_relocator_firmware_get_max_events (void)
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{
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int counter = 0;
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- if (grub_ieee1275_test_flag (GRUB_IEEE1275_FLAG_CANNOT_INTERPRET))
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+ if (grub_ieee1275_test_flag (GRUB_IEEE1275_FLAG_FORCE_CLAIM))
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return 0;
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grub_machine_mmap_iterate (count, &counter);
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return 2 * counter;
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@@ -92,7 +92,7 @@ grub_relocator_firmware_fill_events (struct grub_relocator_mmap_event *events)
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.counter = 0
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};
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- if (grub_ieee1275_test_flag (GRUB_IEEE1275_FLAG_CANNOT_INTERPRET))
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+ if (grub_ieee1275_test_flag (GRUB_IEEE1275_FLAG_FORCE_CLAIM))
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return 0;
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grub_machine_mmap_iterate (grub_relocator_firmware_fill_events_iter, &ctx;;
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return ctx.counter;
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diff --git a/grub-core/loader/powerpc/ieee1275/linux.c b/grub-core/loader/powerpc/ieee1275/linux.c
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index 3356d51..4a14f66 100644
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--- a/grub-core/loader/powerpc/ieee1275/linux.c
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+++ b/grub-core/loader/powerpc/ieee1275/linux.c
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@@ -111,6 +111,20 @@ grub_linux_claimmap_iterate (grub_addr_t target, grub_size_t size,
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.found_addr = (grub_addr_t) -1
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};
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+ if (grub_ieee1275_test_flag (GRUB_IEEE1275_FLAG_FORCE_CLAIM))
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+ {
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+ grub_uint64_t addr = target;
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+ if (addr < GRUB_IEEE1275_STATIC_HEAP_START
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+ + GRUB_IEEE1275_STATIC_HEAP_LEN)
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+ addr = GRUB_IEEE1275_STATIC_HEAP_START
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+ + GRUB_IEEE1275_STATIC_HEAP_LEN;
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+ addr = ALIGN_UP (addr, align);
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+ if (grub_claimmap (addr, size) == GRUB_ERR_NONE)
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+ return addr;
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+ return (grub_addr_t) -1;
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+ }
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+
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+
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grub_machine_mmap_iterate (alloc_mem, &ctx;;
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return ctx.found_addr;
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diff --git a/include/grub/ieee1275/ieee1275.h b/include/grub/ieee1275/ieee1275.h
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index 1e8ba6f..1b240d3 100644
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--- a/include/grub/ieee1275/ieee1275.h
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+++ b/include/grub/ieee1275/ieee1275.h
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@@ -78,6 +78,14 @@ extern grub_ieee1275_phandle_t EXPORT_VAR(grub_ieee1275_chosen);
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extern grub_ieee1275_ihandle_t EXPORT_VAR(grub_ieee1275_mmu);
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extern int (* EXPORT_VAR(grub_ieee1275_entry_fn)) (void *);
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+/* Static heap, used only if FORCE_CLAIM is set,
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+ happens on Open Hack'Ware. Should be in platform-specific
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+ header but is used only on PPC anyway.
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+*/
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+#define GRUB_IEEE1275_STATIC_HEAP_START 0x1000000
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+#define GRUB_IEEE1275_STATIC_HEAP_LEN 0x1000000
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+
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+
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enum grub_ieee1275_flag
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{
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/* Old World Macintosh firmware fails seek when "dev:0" is opened. */
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--
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1.8.1.4
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