[PATCH] SPARC32: divide physical memory reg property into physical SIMM sized ranges
by Mark Cave-Ayland
Currently the /memory node reg property is set to a single range encompassing
the entire physical RAM of the machine. This seems to cause issues with
Solaris when booting on QEMU SS-10 and SS-20 machines whereby having just a
single entry causes the top of physical memory to be calculated incorrectly
and triggers a panic on boot.
Instead copy the behaviour of OBP which is to divide the reg property into a
set of ranges representing the physical SIMM arrangement in the machine, which
fixes the error and allows Solaris to boot under the QEMU SS-10 and SS-20
machines.
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland(a)ilande.co.uk>
---
arch/sparc32/boot.h | 2 +-
arch/sparc32/lib.c | 14 +++++++++-----
arch/sparc32/openbios.c | 6 +++++-
3 files changed, 15 insertions(+), 7 deletions(-)
diff --git a/arch/sparc32/boot.h b/arch/sparc32/boot.h
index e372acc..366e0f6 100644
--- a/arch/sparc32/boot.h
+++ b/arch/sparc32/boot.h
@@ -33,5 +33,5 @@ extern struct linux_mlist_v0 *ptphys;
extern struct linux_mlist_v0 *ptmap;
extern struct linux_mlist_v0 *ptavail;
-void ob_init_mmu(void);
+void ob_init_mmu(uint32_t simm_size);
void init_mmu_swift(void);
diff --git a/arch/sparc32/lib.c b/arch/sparc32/lib.c
index e88c0bf..727929c 100644
--- a/arch/sparc32/lib.c
+++ b/arch/sparc32/lib.c
@@ -294,12 +294,13 @@ static void ignore_dfault_addr(void)
}
void
-ob_init_mmu(void)
+ob_init_mmu(uint32_t simm_size)
{
ucell *memreg;
ucell *virtreg;
phys_addr_t virtregsize;
ofmem_t *ofmem = ofmem_arch_get_private();
+ int i, c;
/* Find the phandles for the /memory and /virtual-memory nodes */
push_str("/memory");
@@ -315,14 +316,17 @@ ob_init_mmu(void)
ofmem_register(s_phandle_memory, s_phandle_mmu);
/* Setup /memory:reg (totphys) property */
- memreg = malloc(3 * sizeof(ucell));
- ofmem_arch_encode_physaddr(memreg, 0); /* physical base */
- memreg[2] = (ucell)ofmem->ramsize; /* size */
+ c = ofmem->ramsize / simm_size;
+ memreg = malloc(3 * c * sizeof(ucell));
+ for (i = 0; i < c; i++) {
+ ofmem_arch_encode_physaddr(&memreg[i * 3], simm_size * i); /* physical base */
+ memreg[i * 3 + 2] = simm_size; /* size */
+ }
push_str("/memory");
fword("find-device");
PUSH(pointer2cell(memreg));
- PUSH(3 * sizeof(ucell));
+ PUSH(3 * c * sizeof(ucell));
push_str("reg");
PUSH_ph(s_phandle_memory);
fword("encode-property");
diff --git a/arch/sparc32/openbios.c b/arch/sparc32/openbios.c
index 3ec8fd7..17a6550 100644
--- a/arch/sparc32/openbios.c
+++ b/arch/sparc32/openbios.c
@@ -42,6 +42,7 @@ struct hwdef {
unsigned long aux1_offset, aux2_offset;
uint64_t dma_base, esp_base, le_base;
uint64_t tcx_base;
+ uint32_t simm_size;
int intr_ncpu;
int mid_offset;
int machine_id_low, machine_id_high;
@@ -65,6 +66,7 @@ static const struct hwdef hwdefs[] = {
.dma_base = 0x78400000,
.esp_base = 0x78800000,
.le_base = 0x78c00000,
+ .simm_size = 0x2000000,
.mid_offset = 0,
.machine_id_low = 32,
.machine_id_high = 63,
@@ -86,6 +88,7 @@ static const struct hwdef hwdefs[] = {
.dma_base = 0xef0400000ULL,
.esp_base = 0xef0800000ULL,
.le_base = 0xef0c00000ULL,
+ .simm_size = 0x4000000,
.mid_offset = 8,
.machine_id_low = 64,
.machine_id_high = 65,
@@ -107,6 +110,7 @@ static const struct hwdef hwdefs[] = {
.dma_base = 0xef0081000ULL,
.esp_base = 0xef0080000ULL,
.le_base = 0xef0060000ULL,
+ .simm_size = 0x4000000,
.mid_offset = 8,
.machine_id_low = 66,
.machine_id_high = 66,
@@ -874,7 +878,7 @@ arch_init( void )
openbios_init();
modules_init();
- ob_init_mmu();
+ ob_init_mmu(hwdef->simm_size);
ob_init_iommu(hwdef->iommu_base);
bind_func("(sparc32-dma-alloc)", dma_alloc);
--
2.11.0
3 months, 4 weeks
- 1
- 1
Qemu 3.1.0 Sparc still does'nt boot Solaris 8 for SS-20
by Ulrich Gräpel
Just gave the latest Qemu a try to boot an emulated SparcStation 20 from
the original Solaris install CD:
/opt/qemu-3.1.0/sparc-softmmu/qemu-system-sparc \
-M SS-20 -m 256 \
-nographic \
-monitor telnet::3001,server,nowait \
-cdrom /mnt/iso/sol-8-hw4-install-sparc32.iso \
-boot d
The resulting output:
Configuration device id QEMU version 1 machine id 65
Probing SBus slot 0 offset 0
Probing SBus slot 1 offset 0
Probing SBus slot 2 offset 0
Probing SBus slot 3 offset 0
Probing SBus slot 15 offset 0
Invalid FCode start byte
CPUs: 1 x TI,TMS390Z55
UUID: 00000000-0000-0000-0000-000000000000
Welcome to OpenBIOS v1.1 built on Oct 5 2018 08:20
Type 'help' for detailed information
Trying cdrom:d...
Not a bootable ELF image
Loading a.out image...
Loaded 7680 bytes
entry point is 0x4000
bootpath: /iommu@f,e0000000/sbus@f,e0001000/espdma@f,400000/esp@f
,800000/sd@2,0:d
switching to new context:
SunOS Release 5.8 Version Generic_108528-29 32-bit
Copyright 1983-2003 Sun Microsystems, Inc. All rights reserved.
\
panic[cpu0]/thread=f0244020: BAD TRAP: type=9 (Data fault) rp=f0243624
addr=0 mmu_fsr=126 rw=1 occurred in module "unix" due to a NULL pointer
dereference
qemu: fatal: Trap 0x29 while interrupts disabled, Error state
pc: f0163298 npc: f016329c
%g0-7: 00000000 f00c220c 3024a52c f024fe14 4000020d f0243b88 00000000
f0244020
%o0-7: 00001fff 00001000 00001000 f5c89000 00000000 f5918240 f02500a0
f0074d94
%l0-7: fbcf4834 f013cc18 00000001 f026eb30 f5917c60 f02727e0 f5917c40
00001010
%i0-7: f5c89000 00001000 00000001 00000000 00000000 f5917c68 f0250100
f013d4a4
%f00: 0000000000000000 0000000000000000 0000000000000000 0000000000000000
%f08: 0000000000000000 0000000000000000 0000000000000000 0000000000000000
%f16: 0000000000000000 0000000000000000 0000000000000000 0000000000000000
%f24: 0000000000000000 0000000000000000 0000000000000000 0000000000000000
psr: 40000fc5 (icc: ---- SPE: SP-) wim: 00000020fsr: 00000000 y: 00000000
Everything works fine though, if configured for the default SparcStation 5
(SS-5). I also tried other machine types: The only working configuration is
the SS-5.
I guess there is some issue with the device tree.
4 months, 3 weeks
- 3
- 3
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