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drm/i915/bdw: support GMS and GGMS changes

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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 <mingo@kernel.org>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Ben Widawsky <ben@bwidawsk.net>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
Ben Widawsky
2013-11-03 16:53:55 -08:00
committed by Daniel Vetter
parent 4e0bbc316e
commit 9459d25237
3 changed files with 42 additions and 3 deletions
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12
arch/x86/kernel/early-quirks.c
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@@ -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)