[SeaBIOS] [PATCH v2] Make pci memory window configurable.

[Gerd Hoffmann]

This patch makes the memory window for PCI
memory bars configurable via Kconfig.

[ v2: handle old pcimem assignment method ]

Signed-off-by: Gerd Hoffmann <kraxel at redhat.com>
---
 src/Kconfig  |   10 ++++++++++
 src/config.h |    9 ++++-----
 2 files changed, 14 insertions(+), 5 deletions(-)

diff --git a/src/Kconfig b/src/Kconfig
index 6d55b23..91a89e3 100644
--- a/src/Kconfig
+++ b/src/Kconfig
@@ -187,6 +187,16 @@ menu "Hardware support"
         depends on EXTRA_PCI_ROOTS
         hex "Extra secondary PCI root bus number"
         default 0x00
+    config PCIMEM_ENABLE_PREFETCH
+        bool "Use separate window for prefetchable PCI memory"
+        default y
+    config PCIMEM_START
+	hex "PCI memory window start address"
+	default 0xf0000000
+    config PCIMEM_SIZE
+	depends on PCIMEM_ENABLE_PREFETCH
+	hex "PCI memory window size for non-prefetchable memory"
+	default 0x08000000
 
     config USE_SMM
         depends on !COREBOOT
diff --git a/src/config.h b/src/config.h
index 5b40488..2aa14c5 100644
--- a/src/config.h
+++ b/src/config.h
@@ -47,18 +47,17 @@
 #define BUILD_BIOS_TMP_ADDR       0x30000
 #define BUILD_MAX_HIGHMEM         0xe0000000
 
+#ifndef CONFIG_PCIMEM_ENABLE_PREFETCH
 // Support old pci mem assignment behaviour
-//#define CONFIG_OLD_PCIMEM_ASSIGNMENT    1
-#if CONFIG_OLD_PCIMEM_ASSIGNMENT
-#define BUILD_PCIMEM_START        0xf0000000
+#define BUILD_PCIMEM_START        CONFIG_PCIMEM_START
 #define BUILD_PCIMEM_SIZE         (BUILD_PCIMEM_END - BUILD_PCIMEM_START)
 #define BUILD_PCIMEM_END          0xfec00000    /* IOAPIC is mapped at */
 #define BUILD_PCIPREFMEM_START    0
 #define BUILD_PCIPREFMEM_SIZE     0
 #define BUILD_PCIPREFMEM_END      0
 #else
-#define BUILD_PCIMEM_START        0xf0000000
-#define BUILD_PCIMEM_SIZE         0x08000000    /* half- of pci window */
+#define BUILD_PCIMEM_START        CONFIG_PCIMEM_START
+#define BUILD_PCIMEM_SIZE         CONFIG_PCIMEM_SIZE
 #define BUILD_PCIMEM_END          (BUILD_PCIMEM_START + BUILD_PCIMEM_SIZE)
 #define BUILD_PCIPREFMEM_START    BUILD_PCIMEM_END
 #define BUILD_PCIPREFMEM_SIZE     (BUILD_PCIPREFMEM_END - BUILD_PCIPREFMEM_START)
-- 
1.7.1