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drm/i915: Function per early graphics quirk
Move graphics stolen memory related early quirk into a function to allow easy adding of other graphics quirks to fix memory maps on machines running old BIOS versions. While at it; - _funcs -> _ops to follow de facto naming - make the iteration code tad more readable - remove unused variables Cc: Chris Wilson <chris@chris-wilson.co.uk> Cc: Mika Kuoppala <mika.kuoppala@intel.com> Cc: Ville Syrjälä <ville.syrjala@linux.intel.com> Cc: Tvrtko Ursulin <tvrtko.ursulin@linux.intel.com> Acked-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com> Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
This commit is contained in:
Joonas Lahtinen
parent
c0dd3460b2
commit
ee0629cfd3
@ -423,11 +423,6 @@ static size_t __init chv_stolen_size(int num, int slot, int func)
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return (size_t)(gms - 0x17 + 9) * MB(4);
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}
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struct intel_stolen_funcs {
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size_t (*size)(int num, int slot, int func);
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phys_addr_t (*base)(int num, int slot, int func, size_t size);
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};
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static size_t __init gen9_stolen_size(int num, int slot, int func)
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{
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u16 gmch_ctrl;
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@ -444,115 +439,129 @@ static size_t __init gen9_stolen_size(int num, int slot, int func)
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return (size_t)(gms - 0xf0 + 1) * MB(4);
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}
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typedef size_t (*stolen_size_fn)(int num, int slot, int func);
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static const struct intel_stolen_funcs i830_stolen_funcs __initconst = {
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.base = i830_stolen_base,
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.size = i830_stolen_size,
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struct intel_early_ops {
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size_t (*stolen_size)(int num, int slot, int func);
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phys_addr_t (*stolen_base)(int num, int slot, int func, size_t size);
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};
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static const struct intel_stolen_funcs i845_stolen_funcs __initconst = {
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.base = i845_stolen_base,
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.size = i830_stolen_size,
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static const struct intel_early_ops i830_early_ops __initconst = {
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.stolen_base = i830_stolen_base,
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.stolen_size = i830_stolen_size,
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};
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static const struct intel_stolen_funcs i85x_stolen_funcs __initconst = {
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.base = i85x_stolen_base,
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.size = gen3_stolen_size,
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static const struct intel_early_ops i845_early_ops __initconst = {
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.stolen_base = i845_stolen_base,
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.stolen_size = i830_stolen_size,
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};
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static const struct intel_stolen_funcs i865_stolen_funcs __initconst = {
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.base = i865_stolen_base,
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.size = gen3_stolen_size,
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static const struct intel_early_ops i85x_early_ops __initconst = {
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.stolen_base = i85x_stolen_base,
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.stolen_size = gen3_stolen_size,
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};
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static const struct intel_stolen_funcs gen3_stolen_funcs __initconst = {
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.base = gen3_stolen_base,
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.size = gen3_stolen_size,
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static const struct intel_early_ops i865_early_ops __initconst = {
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.stolen_base = i865_stolen_base,
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.stolen_size = gen3_stolen_size,
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};
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static const struct intel_stolen_funcs gen6_stolen_funcs __initconst = {
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.base = gen3_stolen_base,
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.size = gen6_stolen_size,
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static const struct intel_early_ops gen3_early_ops __initconst = {
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.stolen_base = gen3_stolen_base,
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.stolen_size = gen3_stolen_size,
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};
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static const struct intel_stolen_funcs gen8_stolen_funcs __initconst = {
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.base = gen3_stolen_base,
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.size = gen8_stolen_size,
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static const struct intel_early_ops gen6_early_ops __initconst = {
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.stolen_base = gen3_stolen_base,
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.stolen_size = gen6_stolen_size,
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};
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static const struct intel_stolen_funcs gen9_stolen_funcs __initconst = {
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.base = gen3_stolen_base,
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.size = gen9_stolen_size,
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static const struct intel_early_ops gen8_early_ops __initconst = {
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.stolen_base = gen3_stolen_base,
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.stolen_size = gen8_stolen_size,
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};
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static const struct intel_stolen_funcs chv_stolen_funcs __initconst = {
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.base = gen3_stolen_base,
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.size = chv_stolen_size,
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static const struct intel_early_ops gen9_early_ops __initconst = {
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.stolen_base = gen3_stolen_base,
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.stolen_size = gen9_stolen_size,
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};
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static const struct pci_device_id intel_stolen_ids[] __initconst = {
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INTEL_I830_IDS(&i830_stolen_funcs),
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INTEL_I845G_IDS(&i845_stolen_funcs),
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INTEL_I85X_IDS(&i85x_stolen_funcs),
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INTEL_I865G_IDS(&i865_stolen_funcs),
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INTEL_I915G_IDS(&gen3_stolen_funcs),
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INTEL_I915GM_IDS(&gen3_stolen_funcs),
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INTEL_I945G_IDS(&gen3_stolen_funcs),
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INTEL_I945GM_IDS(&gen3_stolen_funcs),
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INTEL_VLV_M_IDS(&gen6_stolen_funcs),
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INTEL_VLV_D_IDS(&gen6_stolen_funcs),
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INTEL_PINEVIEW_IDS(&gen3_stolen_funcs),
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INTEL_I965G_IDS(&gen3_stolen_funcs),
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INTEL_G33_IDS(&gen3_stolen_funcs),
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INTEL_I965GM_IDS(&gen3_stolen_funcs),
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INTEL_GM45_IDS(&gen3_stolen_funcs),
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INTEL_G45_IDS(&gen3_stolen_funcs),
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INTEL_IRONLAKE_D_IDS(&gen3_stolen_funcs),
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INTEL_IRONLAKE_M_IDS(&gen3_stolen_funcs),
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INTEL_SNB_D_IDS(&gen6_stolen_funcs),
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INTEL_SNB_M_IDS(&gen6_stolen_funcs),
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INTEL_IVB_M_IDS(&gen6_stolen_funcs),
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INTEL_IVB_D_IDS(&gen6_stolen_funcs),
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INTEL_HSW_D_IDS(&gen6_stolen_funcs),
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INTEL_HSW_M_IDS(&gen6_stolen_funcs),
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INTEL_BDW_M_IDS(&gen8_stolen_funcs),
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INTEL_BDW_D_IDS(&gen8_stolen_funcs),
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INTEL_CHV_IDS(&chv_stolen_funcs),
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INTEL_SKL_IDS(&gen9_stolen_funcs),
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INTEL_BXT_IDS(&gen9_stolen_funcs),
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INTEL_KBL_IDS(&gen9_stolen_funcs),
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static const struct intel_early_ops chv_early_ops __initconst = {
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.stolen_base = gen3_stolen_base,
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.stolen_size = chv_stolen_size,
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};
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static void __init intel_graphics_stolen(int num, int slot, int func)
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static const struct pci_device_id intel_early_ids[] __initconst = {
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INTEL_I830_IDS(&i830_early_ops),
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INTEL_I845G_IDS(&i845_early_ops),
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INTEL_I85X_IDS(&i85x_early_ops),
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INTEL_I865G_IDS(&i865_early_ops),
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INTEL_I915G_IDS(&gen3_early_ops),
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INTEL_I915GM_IDS(&gen3_early_ops),
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INTEL_I945G_IDS(&gen3_early_ops),
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INTEL_I945GM_IDS(&gen3_early_ops),
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INTEL_VLV_M_IDS(&gen6_early_ops),
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INTEL_VLV_D_IDS(&gen6_early_ops),
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INTEL_PINEVIEW_IDS(&gen3_early_ops),
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INTEL_I965G_IDS(&gen3_early_ops),
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INTEL_G33_IDS(&gen3_early_ops),
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INTEL_I965GM_IDS(&gen3_early_ops),
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INTEL_GM45_IDS(&gen3_early_ops),
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INTEL_G45_IDS(&gen3_early_ops),
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INTEL_IRONLAKE_D_IDS(&gen3_early_ops),
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INTEL_IRONLAKE_M_IDS(&gen3_early_ops),
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INTEL_SNB_D_IDS(&gen6_early_ops),
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INTEL_SNB_M_IDS(&gen6_early_ops),
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INTEL_IVB_M_IDS(&gen6_early_ops),
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INTEL_IVB_D_IDS(&gen6_early_ops),
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INTEL_HSW_D_IDS(&gen6_early_ops),
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INTEL_HSW_M_IDS(&gen6_early_ops),
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INTEL_BDW_M_IDS(&gen8_early_ops),
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INTEL_BDW_D_IDS(&gen8_early_ops),
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INTEL_CHV_IDS(&chv_early_ops),
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INTEL_SKL_IDS(&gen9_early_ops),
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INTEL_BXT_IDS(&gen9_early_ops),
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INTEL_KBL_IDS(&gen9_early_ops),
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};
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static void __init
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intel_graphics_stolen(int num, int slot, int func,
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const struct intel_early_ops *early_ops)
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{
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phys_addr_t base;
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size_t size;
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size = early_ops->stolen_size(num, slot, func);
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base = early_ops->stolen_base(num, slot, func, size);
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if (!size || !base)
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return;
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printk(KERN_INFO "Reserving Intel graphics stolen memory at "
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"0x%llx-0x%llx\n", base, base + size - 1);
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/* Mark this space as reserved */
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e820_add_region(base, size, E820_RESERVED);
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sanitize_e820_map(e820.map, ARRAY_SIZE(e820.map), &e820.nr_map);
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}
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static void __init intel_graphics_quirks(int num, int slot, int func)
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{
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const struct intel_early_ops *early_ops;
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u16 device;
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int i;
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phys_addr_t start;
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u16 device, subvendor, subdevice;
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device = read_pci_config_16(num, slot, func, PCI_DEVICE_ID);
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subvendor = read_pci_config_16(num, slot, func,
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PCI_SUBSYSTEM_VENDOR_ID);
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subdevice = read_pci_config_16(num, slot, func, PCI_SUBSYSTEM_ID);
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for (i = 0; i < ARRAY_SIZE(intel_stolen_ids); i++) {
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if (intel_stolen_ids[i].device == device) {
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const struct intel_stolen_funcs *stolen_funcs =
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(const struct intel_stolen_funcs *)intel_stolen_ids[i].driver_data;
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size = stolen_funcs->size(num, slot, func);
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start = stolen_funcs->base(num, slot, func, size);
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if (size && start) {
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printk(KERN_INFO "Reserving Intel graphics stolen memory at 0x%llx-0x%llx\n",
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start, start + size - 1);
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/* Mark this space as reserved */
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e820_add_region(start, size, E820_RESERVED);
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sanitize_e820_map(e820.map,
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ARRAY_SIZE(e820.map),
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&e820.nr_map);
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}
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return;
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}
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for (i = 0; i < ARRAY_SIZE(intel_early_ids); i++) {
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kernel_ulong_t driver_data = intel_early_ids[i].driver_data;
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if (intel_early_ids[i].device != device)
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continue;
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early_ops = (typeof(early_ops))driver_data;
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intel_graphics_stolen(num, slot, func, early_ops);
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return;
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}
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}
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@ -601,7 +610,7 @@ static struct chipset early_qrk[] __initdata = {
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{ PCI_VENDOR_ID_INTEL, 0x3406, PCI_CLASS_BRIDGE_HOST,
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PCI_BASE_CLASS_BRIDGE, 0, intel_remapping_check },
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{ PCI_VENDOR_ID_INTEL, PCI_ANY_ID, PCI_CLASS_DISPLAY_VGA, PCI_ANY_ID,
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QFLAG_APPLY_ONCE, intel_graphics_stolen },
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QFLAG_APPLY_ONCE, intel_graphics_quirks },
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/*
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* HPET on the current version of the Baytrail platform has accuracy
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* problems: it will halt in deep idle state - so we disable it.
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