diff options
Diffstat (limited to 'drivers/gpu/drm/i915')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_drv.h | 1 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/intel_opregion.c | 27 |
2 files changed, 25 insertions, 3 deletions
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h index 18be127..b9739d1 100644 --- a/drivers/gpu/drm/i915/i915_drv.h +++ b/drivers/gpu/drm/i915/i915_drv.h @@ -458,6 +458,7 @@ struct intel_opregion { u32 swsci_gbda_sub_functions; u32 swsci_sbcb_sub_functions; struct opregion_asle *asle; + void *rvda; const void *vbt; u32 vbt_size; u32 *lid_state; diff --git a/drivers/gpu/drm/i915/intel_opregion.c b/drivers/gpu/drm/i915/intel_opregion.c index 96dbd71..c15718b 100644 --- a/drivers/gpu/drm/i915/intel_opregion.c +++ b/drivers/gpu/drm/i915/intel_opregion.c @@ -837,6 +837,10 @@ void intel_opregion_fini(struct drm_device *dev) /* just clear all opregion memory pointers now */ memunmap(opregion->header); + if (opregion->rvda) { + memunmap(opregion->rvda); + opregion->rvda = NULL; + } opregion->header = NULL; opregion->acpi = NULL; opregion->swsci = NULL; @@ -987,13 +991,30 @@ int intel_opregion_setup(struct drm_device *dev) DRM_DEBUG_DRIVER("ASLE extension supported\n"); if (!dmi_check_system(intel_no_opregion_vbt)) { - const void *vbt = base + OPREGION_VBT_OFFSET; - u32 vbt_size = OPREGION_ASLE_EXT_OFFSET - OPREGION_VBT_OFFSET; + const void *vbt = NULL; + u32 vbt_size = 0; + + if (opregion->header->opregion_ver >= 2 && opregion->asle && + opregion->asle->rvda && opregion->asle->rvds) { + opregion->rvda = memremap(opregion->asle->rvda, + opregion->asle->rvds, + MEMREMAP_WB); + vbt = opregion->rvda; + vbt_size = opregion->asle->rvds; + } if (intel_bios_is_valid_vbt(vbt, vbt_size)) { - DRM_DEBUG_KMS("Found valid VBT in ACPI OpRegion\n"); + DRM_DEBUG_KMS("Found valid VBT in ACPI OpRegion (RVDA)\n"); opregion->vbt = vbt; opregion->vbt_size = vbt_size; + } else { + vbt = base + OPREGION_VBT_OFFSET; + vbt_size = OPREGION_ASLE_EXT_OFFSET - OPREGION_VBT_OFFSET; + if (intel_bios_is_valid_vbt(vbt, vbt_size)) { + DRM_DEBUG_KMS("Found valid VBT in ACPI OpRegion (Mailbox #4)\n"); + opregion->vbt = vbt; + opregion->vbt_size = vbt_size; + } } } |
