diff options
| author | Matthew Auld <matthew.auld@intel.com> | 2017-12-11 15:18:15 +0000 |
|---|---|---|
| committer | Joonas Lahtinen <joonas.lahtinen@linux.intel.com> | 2017-12-12 12:30:18 +0200 |
| commit | 55f56fc46020ea59273ddb5de0bdc41b7da45c73 (patch) | |
| tree | 077239e8d65afb55f817cca0b1c5be3d349d1f1f | |
| parent | 6f9fa996c9bf3d86406df95982c7b3def38eb76f (diff) | |
| download | op-kernel-dev-55f56fc46020ea59273ddb5de0bdc41b7da45c73.zip op-kernel-dev-55f56fc46020ea59273ddb5de0bdc41b7da45c73.tar.gz | |
x86/early-quirks: export the stolen region as a resource
We duplicate the stolen discovery code in early-quirks and in i915,
however if we just export the region as a resource from early-quirks we
can nuke the duplication.
Signed-off-by: Matthew Auld <matthew.auld@intel.com>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Paulo Zanoni <paulo.r.zanoni@intel.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: x86@kernel.org
Cc: linux-kernel@vger.kernel.org
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Acked-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20171211151822.20953-3-matthew.auld@intel.com
| -rw-r--r-- | arch/x86/kernel/early-quirks.c | 11 | ||||
| -rw-r--r-- | include/drm/i915_drm.h | 3 |
2 files changed, 12 insertions, 2 deletions
diff --git a/arch/x86/kernel/early-quirks.c b/arch/x86/kernel/early-quirks.c index a18de5f..6c16248 100644 --- a/arch/x86/kernel/early-quirks.c +++ b/arch/x86/kernel/early-quirks.c @@ -532,6 +532,9 @@ static const struct pci_device_id intel_early_ids[] __initconst = { INTEL_CNL_IDS(&gen9_early_ops), }; +struct resource intel_graphics_stolen_res __ro_after_init = DEFINE_RES_MEM(0, 0); +EXPORT_SYMBOL(intel_graphics_stolen_res); + static void __init intel_graphics_stolen(int num, int slot, int func, const struct intel_early_ops *early_ops) @@ -546,8 +549,12 @@ intel_graphics_stolen(int num, int slot, int func, return; end = base + size - 1; - printk(KERN_INFO "Reserving Intel graphics memory at %pa-%pa\n", - &base, &end); + + intel_graphics_stolen_res.start = base; + intel_graphics_stolen_res.end = end; + + printk(KERN_INFO "Reserving Intel graphics memory at %pR\n", + &intel_graphics_stolen_res); /* Mark this space as reserved */ e820__range_add(base, size, E820_TYPE_RESERVED); diff --git a/include/drm/i915_drm.h b/include/drm/i915_drm.h index 4e1b274..c9e5a66 100644 --- a/include/drm/i915_drm.h +++ b/include/drm/i915_drm.h @@ -36,6 +36,9 @@ extern bool i915_gpu_lower(void); extern bool i915_gpu_busy(void); extern bool i915_gpu_turbo_disable(void); +/* Exported from arch/x86/kernel/early-quirks.c */ +extern struct resource intel_graphics_stolen_res; + /* * The Bridge device's PCI config space has information about the * fb aperture size and the amount of pre-reserved memory. |
