Commit-ID: 52ca70454ea5ff29bc39f7871d28f8e6f4713867
Gitweb: http://git.kernel.org/tip/52ca70454ea5ff29bc39f7871d28f8e6f4713867
Author: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
AuthorDate: Wed, 5 Feb 2014 21:28:58 +0200
Committer: Ingo Molnar <mingo@xxxxxxxxxx>
CommitDate: Sun, 9 Feb 2014 15:11:30 +0100
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@xxxxxxxxxxxxxxx>
Cc: Bjorn Helgaas <bhelgaas@xxxxxxxxxx>
Link: http://lkml.kernel.org/r/1391628540-23072-2-git-send-email-ville.syrjala@xxxxxxxxxxxxxxx
Signed-off-by: Ingo Molnar <mingo@xxxxxxxxxx>
---
arch/x86/kernel/early-quirks.c | 77 ++++++++++++++++++++++++++----------------
1 file changed, 48 insertions(+), 29 deletions(-)
diff --git a/arch/x86/kernel/early-quirks.c b/arch/x86/kernel/early-quirks.c
index bc4a088..fddd4d0 100644
--- a/arch/x86/kernel/early-quirks.c
+++ b/arch/x86/kernel/early-quirks.c
@@ -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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