On Wed, 12 Aug 2015, David Weinehall <david.weineh...@linux.intel.com> wrote:
> Some more fixup is needed; the bits from Antti's patch
> that actually expanded the struct to fully fit the newer
> versions of the child_device_config was part of the second
> patch; since that patch hasn't been merged yet we need this bit:
>
> This applies on top of the patch you already merged
> (the Iboost patch will need corresponding adjustment to
> remove the changes I split out):
>
> Expand common_child_dev_config to be able to fit all information
> defined by the latest VBT specification.
>
> Signed-off-by: David Weinehall <david.weineh...@linux.intel.com>
> CC: Antti Koskipaa <antti.koski...@linux.intel.com>
> ---
> intel_bios.c | 7 ++++++-
> intel_bios.h | 4 ++++
> 2 files changed, 10 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/i915/intel_bios.c
> b/drivers/gpu/drm/i915/intel_bios.c
> index 990acc20771a..40e2cc4e7419 100644
> --- a/drivers/gpu/drm/i915/intel_bios.c
> +++ b/drivers/gpu/drm/i915/intel_bios.c
> @@ -1038,6 +1038,10 @@ parse_device_mapping(struct drm_i915_private *dev_priv,
> DRM_DEBUG_KMS("No general definition block is found, no devices
> defined.\n");
> return;
> }
> + /* Remember to keep this in sync with child_device_config;
> + * whenever a new feature is added to BDB that causes that
> + * struct to grow this needs to be updated too
> + */
BUILD_BUG_ON(something about sizeof child device config) ?
> if (bdb->version < 195) {
> expected_size = 33;
> } else if (bdb->version == 195) {
> @@ -1051,7 +1055,8 @@ parse_device_mapping(struct drm_i915_private *dev_priv,
> }
>
> if (expected_size > sizeof(*p_child)) {
> - DRM_ERROR("child_device_config cannot fit in p_child\n");
> + DRM_ERROR("child_device_config (size %u) cannot fit in p_child
> (size %u); bdb->version: %u\n",
> + expected_size, sizeof(*p_child), bdb->version);
> return;
> }
>
> diff --git a/drivers/gpu/drm/i915/intel_bios.h
> b/drivers/gpu/drm/i915/intel_bios.h
> index f7ad6a585129..71cb96f77870 100644
> --- a/drivers/gpu/drm/i915/intel_bios.h
> +++ b/drivers/gpu/drm/i915/intel_bios.h
> @@ -239,6 +239,10 @@ struct common_child_dev_config {
> u8 not_common2[2];
> u8 ddc_pin;
> u16 edid_ptr;
> + u8 obsolete;
> + u8 flags_1;
> + u8 not_common3[13];
> + u8 iboost_level;
> } __packed;
>
> /* This field changes depending on the BDB version, so the most reliable way
> to
> _______________________________________________
> Intel-gfx mailing list
> Intel-gfx@lists.freedesktop.org
> http://lists.freedesktop.org/mailman/listinfo/intel-gfx
--
Jani Nikula, Intel Open Source Technology Center
_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
http://lists.freedesktop.org/mailman/listinfo/intel-gfx
