Commit 52ca7045 authored by Ville Syrjälä's avatar Ville Syrjälä Committed by Ingo Molnar
Browse files

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: default avatarVille 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: default avatarIngo Molnar <mingo@kernel.org>
parent 49447903

arch/x86/kernel/early-quirks.c

+48 −29
Original line number Diff line number Diff line
@@ -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.

 */

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;
@@ -313,7 +313,7 @@ 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)

static size_t gen8_stolen_size(int num, int slot, int func)

{

	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 */

}



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 = {

	INTEL_I915G_IDS(gen3_stolen_size),

	INTEL_I915GM_IDS(gen3_stolen_size),

	INTEL_I945G_IDS(gen3_stolen_size),

	INTEL_I945GM_IDS(gen3_stolen_size),

	INTEL_VLV_M_IDS(gen6_stolen_size),

	INTEL_VLV_D_IDS(gen6_stolen_size),

	INTEL_PINEVIEW_IDS(gen3_stolen_size),

	INTEL_I965G_IDS(gen3_stolen_size),

	INTEL_G33_IDS(gen3_stolen_size),

	INTEL_I965GM_IDS(gen3_stolen_size),

	INTEL_GM45_IDS(gen3_stolen_size),

	INTEL_G45_IDS(gen3_stolen_size),

	INTEL_IRONLAKE_D_IDS(gen3_stolen_size),

	INTEL_IRONLAKE_M_IDS(gen3_stolen_size),

	INTEL_SNB_D_IDS(gen6_stolen_size),

	INTEL_SNB_M_IDS(gen6_stolen_size),

	INTEL_IVB_M_IDS(gen6_stolen_size),

	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)

	INTEL_I915G_IDS(&gen3_stolen_funcs),

	INTEL_I915GM_IDS(&gen3_stolen_funcs),

	INTEL_I945G_IDS(&gen3_stolen_funcs),

	INTEL_I945GM_IDS(&gen3_stolen_funcs),

	INTEL_VLV_M_IDS(&gen6_stolen_funcs),

	INTEL_VLV_D_IDS(&gen6_stolen_funcs),

	INTEL_PINEVIEW_IDS(&gen3_stolen_funcs),

	INTEL_I965G_IDS(&gen3_stolen_funcs),

	INTEL_G33_IDS(&gen3_stolen_funcs),

	INTEL_I965GM_IDS(&gen3_stolen_funcs),

	INTEL_GM45_IDS(&gen3_stolen_funcs),

	INTEL_G45_IDS(&gen3_stolen_funcs),

	INTEL_IRONLAKE_D_IDS(&gen3_stolen_funcs),

	INTEL_IRONLAKE_M_IDS(&gen3_stolen_funcs),

	INTEL_SNB_D_IDS(&gen6_stolen_funcs),

	INTEL_SNB_M_IDS(&gen6_stolen_funcs),

	INTEL_IVB_M_IDS(&gen6_stolen_funcs),

	INTEL_IVB_D_IDS(&gen6_stolen_funcs),

	INTEL_HSW_D_IDS(&gen6_stolen_funcs),

	INTEL_HSW_M_IDS(&gen6_stolen_funcs),

	INTEL_BDW_M_IDS(&gen8_stolen_funcs),

	INTEL_BDW_D_IDS(&gen8_stolen_funcs)

};



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++) {

		if (intel_stolen_ids[i].device == device) {

			stolen_size_fn stolen_size =

				(stolen_size_fn)intel_stolen_ids[i].driver_data;

			size = stolen_size(num, slot, func);

			start = intel_stolen_base(num, slot, func);

			const struct intel_stolen_funcs *stolen_funcs =

				(const struct intel_stolen_funcs *)intel_stolen_ids[i].driver_data;

			size = stolen_funcs->size(num, slot, func);

			start = stolen_funcs->base(num, slot, func, size);

			if (size && start) {

				/* Mark this space as reserved */

				e820_add_region(start, size, E820_RESERVED);

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