[OpenBIOS] [PATCH 4/5] Introduce ofmem_arch_get_phys_top() for specifying the top of physical memory in OFMEM.

[Mark Cave-Ayland]

At the same time, teach OFMEM to make use of it when calculating the /memory available property.

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland at siriusit.co.uk>
---
 openbios-devel/arch/ppc/qemu/ofmem.c        |    7 +++++++
 openbios-devel/arch/sparc64/ofmem_sparc64.c |    7 +++++++
 openbios-devel/include/libopenbios/ofmem.h  |    1 +
 openbios-devel/libopenbios/ofmem_common.c   |    2 +-
 4 files changed, 16 insertions(+), 1 deletions(-)

diff --git a/openbios-devel/arch/ppc/qemu/ofmem.c b/openbios-devel/arch/ppc/qemu/ofmem.c
index c21a112..ef8cfc3 100644
--- a/openbios-devel/arch/ppc/qemu/ofmem.c
+++ b/openbios-devel/arch/ppc/qemu/ofmem.c
@@ -115,6 +115,13 @@ ucell ofmem_arch_get_virt_top(void)
     return IO_BASE;
 }
 
+phys_addr_t ofmem_arch_get_phys_top(void)
+{
+	ofmem_t *ofmem = ofmem_arch_get_private();
+
+	return ofmem->ramsize;
+}
+
 void ofmem_arch_unmap_pages(ucell virt, ucell size)
 {
     /* kill page mappings in provided range */
diff --git a/openbios-devel/arch/sparc64/ofmem_sparc64.c b/openbios-devel/arch/sparc64/ofmem_sparc64.c
index 4d13038..0ec8632 100644
--- a/openbios-devel/arch/sparc64/ofmem_sparc64.c
+++ b/openbios-devel/arch/sparc64/ofmem_sparc64.c
@@ -63,6 +63,13 @@ ucell ofmem_arch_get_virt_top(void)
 	return (ucell)TOP_OF_RAM;
 }
 
+phys_addr_t ofmem_arch_get_phys_top(void)
+{
+	ofmem_t *ofmem = ofmem_arch_get_private();
+
+	return ofmem->ramsize;
+}
+
 retain_t *ofmem_arch_get_retained(void)
 {
 	/* Retained area is at the top of physical RAM */
diff --git a/openbios-devel/include/libopenbios/ofmem.h b/openbios-devel/include/libopenbios/ofmem.h
index 72247d9..b7469c2 100644
--- a/openbios-devel/include/libopenbios/ofmem.h
+++ b/openbios-devel/include/libopenbios/ofmem.h
@@ -62,6 +62,7 @@ extern ofmem_t* 	ofmem_arch_get_private(void);
 extern void*    	ofmem_arch_get_malloc_base(void);
 extern ucell    	ofmem_arch_get_heap_top(void);
 extern ucell    	ofmem_arch_get_virt_top(void);
+extern phys_addr_t 	ofmem_arch_get_phys_top(void);
 extern retain_t*	ofmem_arch_get_retained(void);
 extern int			ofmem_arch_get_physaddr_cellsize(void);
 extern int			ofmem_arch_encode_physaddr(ucell *p, phys_addr_t value);
diff --git a/openbios-devel/libopenbios/ofmem_common.c b/openbios-devel/libopenbios/ofmem_common.c
index 50cd7d8..f235e98 100644
--- a/openbios-devel/libopenbios/ofmem_common.c
+++ b/openbios-devel/libopenbios/ofmem_common.c
@@ -341,7 +341,7 @@ static void ofmem_update_translations( void )
 	ofmem_t *ofmem = ofmem_arch_get_private();
 
 	ofmem_update_memory_available(s_phandle_memory, ofmem->phys_range, 
-			&phys_range_prop, &phys_range_prop_size, &phys_range_prop_used, get_ram_size());
+			&phys_range_prop, &phys_range_prop_size, &phys_range_prop_used, ofmem_arch_get_phys_top());
 	ofmem_update_memory_available(s_phandle_mmu, ofmem->virt_range, 
 			&virt_range_prop, &virt_range_prop_size, &virt_range_prop_used, -1ULL);
 	ofmem_update_mmu_translations();
-- 
1.7.1