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x86/gpu: Add vfunc for Intel graphics stolen memory base address 

For gen2 devices we're going to need another way to determine
the stolen memory base address. Make that into a vfunc as well.

Also drop the bogus inline keyword from gen8_stolen_size().

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: Bjorn Helgaas <bhelgaas@google.com>
Link: http://lkml.kernel.org/r/1391628540-23072-2-git-send-email-ville.syrjala@linux.intel.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
This commit is contained in:
Ville Syrjälä 2014-02-05 21:28:58 +02:00 committed by Ingo Molnar
parent 494479038d
commit 52ca70454e
1 changed files with 48 additions and 29 deletions
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77
arch/x86/kernel/early-quirks.c
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@ -228,7 +228,7 @@ static void __init intel_remapping_check(int num, int slot, int func)
* *
* And yes, so far on current devices the base addr is always under 4G. * And yes, so far on current devices the base addr is always under 4G.
*/ */
static u32 __init intel_stolen_base(int num, int slot, int func) static u32 __init intel_stolen_base(int num, int slot, int func, size_t stolen_size)
{ {
u32 base; u32 base;
@ -313,7 +313,7 @@ static size_t __init gen6_stolen_size(int num, int slot, int func)
return gmch_ctrl << 25; /* 32 MB units */ return gmch_ctrl << 25; /* 32 MB units */
} }
static inline size_t gen8_stolen_size(int num, int slot, int func) static size_t gen8_stolen_size(int num, int slot, int func)
{ {
u16 gmch_ctrl; u16 gmch_ctrl;
@ -323,31 +323,50 @@ static inline size_t gen8_stolen_size(int num, int slot, int func)
return gmch_ctrl << 25; /* 32 MB units */ return gmch_ctrl << 25; /* 32 MB units */
} }
typedef size_t (*stolen_size_fn)(int num, int slot, int func);
struct intel_stolen_funcs {
size_t (*size)(int num, int slot, int func);
u32 (*base)(int num, int slot, int func, size_t size);
};
static const struct intel_stolen_funcs gen3_stolen_funcs = {
.base = intel_stolen_base,
.size = gen3_stolen_size,
};
static const struct intel_stolen_funcs gen6_stolen_funcs = {
.base = intel_stolen_base,
.size = gen6_stolen_size,
};
static const struct intel_stolen_funcs gen8_stolen_funcs = {
.base = intel_stolen_base,
.size = gen8_stolen_size,
};
static struct pci_device_id intel_stolen_ids[] __initdata = { static struct pci_device_id intel_stolen_ids[] __initdata = {
INTEL_I915G_IDS(gen3_stolen_size), INTEL_I915G_IDS(&gen3_stolen_funcs),
INTEL_I915GM_IDS(gen3_stolen_size), INTEL_I915GM_IDS(&gen3_stolen_funcs),
INTEL_I945G_IDS(gen3_stolen_size), INTEL_I945G_IDS(&gen3_stolen_funcs),
INTEL_I945GM_IDS(gen3_stolen_size), INTEL_I945GM_IDS(&gen3_stolen_funcs),
INTEL_VLV_M_IDS(gen6_stolen_size), INTEL_VLV_M_IDS(&gen6_stolen_funcs),
INTEL_VLV_D_IDS(gen6_stolen_size), INTEL_VLV_D_IDS(&gen6_stolen_funcs),
INTEL_PINEVIEW_IDS(gen3_stolen_size), INTEL_PINEVIEW_IDS(&gen3_stolen_funcs),
INTEL_I965G_IDS(gen3_stolen_size), INTEL_I965G_IDS(&gen3_stolen_funcs),
INTEL_G33_IDS(gen3_stolen_size), INTEL_G33_IDS(&gen3_stolen_funcs),
INTEL_I965GM_IDS(gen3_stolen_size), INTEL_I965GM_IDS(&gen3_stolen_funcs),
INTEL_GM45_IDS(gen3_stolen_size), INTEL_GM45_IDS(&gen3_stolen_funcs),
INTEL_G45_IDS(gen3_stolen_size), INTEL_G45_IDS(&gen3_stolen_funcs),
INTEL_IRONLAKE_D_IDS(gen3_stolen_size), INTEL_IRONLAKE_D_IDS(&gen3_stolen_funcs),
INTEL_IRONLAKE_M_IDS(gen3_stolen_size), INTEL_IRONLAKE_M_IDS(&gen3_stolen_funcs),
INTEL_SNB_D_IDS(gen6_stolen_size), INTEL_SNB_D_IDS(&gen6_stolen_funcs),
INTEL_SNB_M_IDS(gen6_stolen_size), INTEL_SNB_M_IDS(&gen6_stolen_funcs),
INTEL_IVB_M_IDS(gen6_stolen_size), INTEL_IVB_M_IDS(&gen6_stolen_funcs),
INTEL_IVB_D_IDS(gen6_stolen_size), INTEL_IVB_D_IDS(&gen6_stolen_funcs),
INTEL_HSW_D_IDS(gen6_stolen_size), INTEL_HSW_D_IDS(&gen6_stolen_funcs),
INTEL_HSW_M_IDS(gen6_stolen_size), INTEL_HSW_M_IDS(&gen6_stolen_funcs),
INTEL_BDW_M_IDS(gen8_stolen_size), INTEL_BDW_M_IDS(&gen8_stolen_funcs),
INTEL_BDW_D_IDS(gen8_stolen_size) INTEL_BDW_D_IDS(&gen8_stolen_funcs)
}; };
static void __init intel_graphics_stolen(int num, int slot, int func) static void __init intel_graphics_stolen(int num, int slot, int func)
@ -364,10 +383,10 @@ static void __init intel_graphics_stolen(int num, int slot, int func)
for (i = 0; i < ARRAY_SIZE(intel_stolen_ids); i++) { for (i = 0; i < ARRAY_SIZE(intel_stolen_ids); i++) {
if (intel_stolen_ids[i].device == device) { if (intel_stolen_ids[i].device == device) {
stolen_size_fn stolen_size = const struct intel_stolen_funcs *stolen_funcs =
(stolen_size_fn)intel_stolen_ids[i].driver_data; (const struct intel_stolen_funcs *)intel_stolen_ids[i].driver_data;
size = stolen_size(num, slot, func); size = stolen_funcs->size(num, slot, func);
start = intel_stolen_base(num, slot, func); start = stolen_funcs->base(num, slot, func, size);
if (size && start) { if (size && start) {
/* Mark this space as reserved */ /* Mark this space as reserved */
e820_add_region(start, size, E820_RESERVED); e820_add_region(start, size, E820_RESERVED);