[OpenBIOS] [PATCH 01/13] SPARC64: increase size of PCI memory space

Mark Cave-Ayland mark.cave-ayland at ilande.co.uk
Sat Jul 8 22:35:48 CEST 2017


On a real machine the PCI memory space should be 10 times as large, however that
takes us to a 64-bit value which isn't directly supported by OpenBIOS. Increase
the PCI memory space by an amount which allows Linux to allocate the IOMMU correctly.

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland at ilande.co.uk>
---
 arch/sparc64/openbios.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/sparc64/openbios.c b/arch/sparc64/openbios.c
index ef1fdae..06ceec9 100644
--- a/arch/sparc64/openbios.c
+++ b/arch/sparc64/openbios.c
@@ -61,13 +61,13 @@ static const struct hwdef hwdefs[] = {
             .cfg_len = 0x2000000,
             .host_pci_base = APB_MEM_BASE,
             .pci_mem_base = 0x100000, /* avoid VGA at 0xa0000 */
-            .mem_len = 0x10000000,
+            .mem_len = 0xf0000000,
             .io_base = APB_SPECIAL_BASE + 0x2000000ULL, // PCI Bus I/O space
             .io_len = 0x10000,
             .host_ranges = {
                 { .type = CONFIGURATION_SPACE, .parentaddr = 0, .childaddr = APB_SPECIAL_BASE + 0x1000000ULL, .len = 0x2000000 },
                 { .type = IO_SPACE, .parentaddr = 0, .childaddr = APB_SPECIAL_BASE + 0x2000000ULL, .len = 0x10000 },
-                { .type = MEMORY_SPACE_32, .parentaddr = 0x100000, .childaddr = APB_MEM_BASE + 0x100000ULL, .len = 0x10000000 },
+                { .type = MEMORY_SPACE_32, .parentaddr = 0x100000, .childaddr = APB_MEM_BASE + 0x100000ULL, .len = 0xf0000000 },
                 { .type = 0, .parentaddr = 0, .childaddr = 0, .len = 0 }
             },
             .irqs = { 0, 1, 2, 3 },
-- 
1.7.10.4




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