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[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [Xen-changelog] [xen-unstable] [XEN][POWERPC] restructure RMA code to allow dom0 tools to allocate in the future
# HG changeset patch
# User Hollis Blanchard <hollisb@xxxxxxxxxx>
# Node ID 215d5eae720cdf96724f919a04a9f73bea887bfd
# Parent 43ec7afa5734a8c2d8840c01e50255d7c96f5abd
[XEN][POWERPC] restructure RMA code to allow dom0 tools to allocate in the
future
Signed-off-by: Hollis Blanchard <hollisb@xxxxxxxxxx>
---
xen/arch/powerpc/boot_of.c | 2 -
xen/arch/powerpc/domain.c | 2 -
xen/arch/powerpc/powerpc64/ppc970.c | 66 ++++++++++++++++++------------------
xen/arch/powerpc/setup.c | 2 -
xen/include/asm-powerpc/processor.h | 2 -
5 files changed, 37 insertions(+), 37 deletions(-)
diff -r 43ec7afa5734 -r 215d5eae720c xen/arch/powerpc/boot_of.c
--- a/xen/arch/powerpc/boot_of.c Fri Aug 25 15:28:48 2006 -0400
+++ b/xen/arch/powerpc/boot_of.c Fri Aug 25 14:48:07 2006 -0500
@@ -727,7 +727,7 @@ static ulong find_space(u32 size, u32 al
__func__, space_base, eomem, size, align);
base = ALIGN_UP(space_base, PAGE_SIZE);
- while ((base + size) < rma_size(cpu_rma_order())) {
+ while ((base + size) < rma_size(cpu_default_rma_order_pages())) {
if (of_claim(base, size, 0) != OF_FAILURE) {
space_base = base + size;
return base;
diff -r 43ec7afa5734 -r 215d5eae720c xen/arch/powerpc/domain.c
--- a/xen/arch/powerpc/domain.c Fri Aug 25 15:28:48 2006 -0400
+++ b/xen/arch/powerpc/domain.c Fri Aug 25 14:48:07 2006 -0500
@@ -86,7 +86,7 @@ int arch_domain_create(struct domain *d)
return 0;
}
- d->arch.rma_order = cpu_rma_order();
+ d->arch.rma_order = cpu_default_rma_order_pages();
rma_sz = rma_size(d->arch.rma_order);
/* allocate the real mode area */
diff -r 43ec7afa5734 -r 215d5eae720c xen/arch/powerpc/powerpc64/ppc970.c
--- a/xen/arch/powerpc/powerpc64/ppc970.c Fri Aug 25 15:28:48 2006 -0400
+++ b/xen/arch/powerpc/powerpc64/ppc970.c Fri Aug 25 14:48:07 2006 -0500
@@ -34,11 +34,34 @@
extern volatile struct processor_area * volatile global_cpu_table[];
-unsigned int cpu_rma_order(void)
+struct rma_settings {
+ int order;
+ int rmlr0;
+ int rmlr12;
+};
+
+static struct rma_settings rma_orders[] = {
+ { .order = 26, .rmlr0 = 0, .rmlr12 = 3, }, /* 64 MB */
+ { .order = 27, .rmlr0 = 1, .rmlr12 = 3, }, /* 128 MB */
+ { .order = 28, .rmlr0 = 1, .rmlr12 = 0, }, /* 256 MB */
+ { .order = 30, .rmlr0 = 0, .rmlr12 = 2, }, /* 1 GB */
+ { .order = 34, .rmlr0 = 0, .rmlr12 = 1, }, /* 16 GB */
+ { .order = 38, .rmlr0 = 0, .rmlr12 = 0, }, /* 256 GB */
+};
+
+static struct rma_settings *cpu_find_rma(unsigned int order)
{
- /* XXX what about non-HV mode? */
- uint rma_log_size = 6 + 20; /* (1 << 6) == 64 */
- return rma_log_size - PAGE_SHIFT;
+ int i;
+ for (i = 0; i < ARRAY_SIZE(rma_orders); i++) {
+ if (rma_orders[i].order == order)
+ return &rma_orders[i];
+ }
+ return NULL;
+}
+
+unsigned int cpu_default_rma_order_pages(void)
+{
+ return rma_orders[0].order - PAGE_SHIFT;
}
unsigned int cpu_large_page_orders(uint *sizes, uint max)
@@ -129,45 +152,22 @@ void cpu_init_vcpu(struct vcpu *v)
{
struct domain *d = v->domain;
union hid4 hid4;
- ulong rma_base = page_to_maddr(d->arch.rma_page);
- ulong rma_size = rma_size(d->arch.rma_order);
+ struct rma_settings *rma_settings;
hid4.word = mfhid4();
hid4.bits.lpes0 = 0; /* exceptions set MSR_HV=1 */
hid4.bits.lpes1 = 1; /* RMA applies */
- hid4.bits.rmor = rma_base >> 26;
+ hid4.bits.rmor = page_to_maddr(d->arch.rma_page) >> 26;
hid4.bits.lpid01 = d->domain_id & 3;
hid4.bits.lpid25 = (d->domain_id >> 2) & 0xf;
- switch (rma_size) {
- case 256ULL << 30: /* 256 GB */
- hid4.bits.rmlr0 = 0;
- hid4.bits.rmlr12 = 0;
- break;
- case 16ULL << 30: /* 16 GB */
- hid4.bits.rmlr0 = 0;
- hid4.bits.rmlr12 = 1;
- break;
- case 1ULL << 30: /* 1 GB */
- hid4.bits.rmlr0 = 0;
- hid4.bits.rmlr12 = 2;
- break;
- case 64ULL << 20: /* 64 MB */
- hid4.bits.rmlr0 = 0;
- hid4.bits.rmlr12 = 3;
- break;
- case 256ULL << 20: /* 256 MB */
- hid4.bits.rmlr0 = 1;
- hid4.bits.rmlr12 = 0;
- break;
- case 128ULL << 20: /* 128 MB */
- hid4.bits.rmlr0 = 1;
- hid4.bits.rmlr12 = 3;
- break;
- }
+ rma_settings = cpu_find_rma(d->arch.rma_order + PAGE_SHIFT);
+ ASSERT(rma_settings != NULL);
+ hid4.bits.rmlr0 = rma_settings->rmlr0;
+ hid4.bits.rmlr12 = rma_settings->rmlr12;
v->arch.cpu.hid4.word = hid4.word;
}
diff -r 43ec7afa5734 -r 215d5eae720c xen/arch/powerpc/setup.c
--- a/xen/arch/powerpc/setup.c Fri Aug 25 15:28:48 2006 -0400
+++ b/xen/arch/powerpc/setup.c Fri Aug 25 14:48:07 2006 -0500
@@ -296,7 +296,7 @@ static void __init __start_xen(multiboot
#endif
/* we give the first RMA to the hypervisor */
- xenheap_phys_end = rma_size(cpu_rma_order());
+ xenheap_phys_end = rma_size(cpu_default_rma_order_pages());
/* Check that we have at least one Multiboot module. */
if (!(mbi->flags & MBI_MODULES) || (mbi->mods_count == 0)) {
diff -r 43ec7afa5734 -r 215d5eae720c xen/include/asm-powerpc/processor.h
--- a/xen/include/asm-powerpc/processor.h Fri Aug 25 15:28:48 2006 -0400
+++ b/xen/include/asm-powerpc/processor.h Fri Aug 25 14:48:07 2006 -0500
@@ -40,7 +40,7 @@ extern void show_registers(struct cpu_us
extern void show_registers(struct cpu_user_regs *);
extern void show_execution_state(struct cpu_user_regs *);
extern void show_backtrace(ulong sp, ulong lr, ulong pc);
-extern uint cpu_rma_order(void);
+extern unsigned int cpu_default_rma_order_pages(void);
extern uint cpu_large_page_orders(uint *sizes, uint max);
extern void cpu_initialize(int cpuid);
extern void cpu_init_vcpu(struct vcpu *);
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