From 9459d252378aea80d28dc12bfec9a0d31b2a61bf Mon Sep 17 00:00:00 2001 From: Ben Widawsky Date: Sun, 3 Nov 2013 16:53:55 -0800 Subject: drm/i915/bdw: support GMS and GGMS changes All the BARs have the ability to grow. v2: Pulled out the simulator workaround to a separate patch. Rebased. v3: Rebase onto latest vlv patches from Jesse. v4: Rebased on top of the early stolen quirk patch from Jesse. v5: Use the new macro names. s/INTEL_BDW_PCI_IDS_D/INTEL_BDW_D_IDS s/INTEL_BDW_PCI_IDS_M/INTEL_BDW_M_IDS It's Jesse's fault for not following the convention I originally set. Cc: Ingo Molnar Cc: H. Peter Anvin Cc: Jesse Barnes Signed-off-by: Ben Widawsky Signed-off-by: Daniel Vetter --- arch/x86/kernel/early-quirks.c | 12 ++++++++++++ 1 file changed, 12 insertions(+) (limited to 'arch/x86') diff --git a/arch/x86/kernel/early-quirks.c b/arch/x86/kernel/early-quirks.c index b3cd3eb..96f958d 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) -- cgit v1.1