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-rw-r--r--arch/x86/kernel/early-quirks.c12
1 files changed, 12 insertions, 0 deletions
diff --git a/arch/x86/kernel/early-quirks.c b/arch/x86/kernel/early-quirks.c
index b3cd3ebae077..96f958d8cd45 100644
--- a/arch/x86/kernel/early-quirks.c
+++ b/arch/x86/kernel/early-quirks.c
@@ -313,6 +313,16 @@ static size_t __init gen6_stolen_size(int num, int slot, int func)
return gmch_ctrl << 25; /* 32 MB units */
}
+static inline size_t gen8_stolen_size(int num, int slot, int func)
+{
+ u16 gmch_ctrl;
+
+ gmch_ctrl = read_pci_config_16(num, slot, func, SNB_GMCH_CTRL);
+ gmch_ctrl >>= BDW_GMCH_GMS_SHIFT;
+ gmch_ctrl &= BDW_GMCH_GMS_MASK;
+ return gmch_ctrl << 25; /* 32 MB units */
+}
+
typedef size_t (*stolen_size_fn)(int num, int slot, int func);
static struct pci_device_id intel_stolen_ids[] __initdata = {
@@ -336,6 +346,8 @@ static struct pci_device_id intel_stolen_ids[] __initdata = {
INTEL_IVB_D_IDS(gen6_stolen_size),
INTEL_HSW_D_IDS(gen6_stolen_size),
INTEL_HSW_M_IDS(gen6_stolen_size),
+ INTEL_BDW_M_IDS(gen8_stolen_size),
+ INTEL_BDW_D_IDS(gen8_stolen_size)
};
static void __init intel_graphics_stolen(int num, int slot, int func)
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