From: "Ville Syrjälä" <ville.syrjala@linux.intel.com>
To: Jani Nikula <jani.nikula@intel.com>
Cc: intel-gfx@lists.freedesktop.org
Subject: Re: [PATCH 1/3] drm/i915/opregion: fix version check
Date: Fri, 8 Feb 2019 18:23:16 +0200 [thread overview]
Message-ID: <20190208162316.GW20097@intel.com> (raw)
In-Reply-To: <20190208124332.886-1-jani.nikula@intel.com>
On Fri, Feb 08, 2019 at 02:43:30PM +0200, Jani Nikula wrote:
> The u32 version field encodes major version in the high word. We've been
> checking for version >= 0.2.
>
> Add opregion version logging while at it.
>
> Fixes: 04ebaadb9f2d ("drm/i915/opregion: handle VBT sizes bigger than 6 KB")
> Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
> Cc: Imre Deak <imre.deak@intel.com>
> Signed-off-by: Jani Nikula <jani.nikula@intel.com>
> ---
> drivers/gpu/drm/i915/intel_opregion.c | 11 +++++++++--
> 1 file changed, 9 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/gpu/drm/i915/intel_opregion.c b/drivers/gpu/drm/i915/intel_opregion.c
> index 30ae96c5c97c..7e4152d97c45 100644
> --- a/drivers/gpu/drm/i915/intel_opregion.c
> +++ b/drivers/gpu/drm/i915/intel_opregion.c
> @@ -46,6 +46,9 @@
> #define OPREGION_ASLE_EXT_OFFSET 0x1C00
>
> #define OPREGION_SIGNATURE "IntelGraphicsMem"
> +
> +#define OPREGION_VERSION(major, minor) (((major) << 16) | (minor))
> +
> #define MBOX_ACPI (1<<0)
> #define MBOX_SWSCI (1<<1)
> #define MBOX_ASLE (1<<2)
> @@ -924,6 +927,10 @@ int intel_opregion_setup(struct drm_i915_private *dev_priv)
> opregion->header = base;
> opregion->lid_state = base + ACPI_CLID;
>
> + DRM_DEBUG_DRIVER("ACPI OpRegion version %u.%u\n",
> + opregion->header->opregion_ver >> 16,
> + opregion->header->opregion_ver & 0xffff);
BTW the spec says this is 4bit bcd. So this printk isn't quite correct.
> +
> mboxes = opregion->header->mboxes;
> if (mboxes & MBOX_ACPI) {
> DRM_DEBUG_DRIVER("Public ACPI methods supported\n");
> @@ -952,8 +959,8 @@ int intel_opregion_setup(struct drm_i915_private *dev_priv)
> if (dmi_check_system(intel_no_opregion_vbt))
> goto out;
>
> - if (opregion->header->opregion_ver >= 2 && opregion->asle &&
> - opregion->asle->rvda && opregion->asle->rvds) {
> + if (opregion->header->opregion_ver >= OPREGION_VERSION(2, 0) &&
> + opregion->asle && opregion->asle->rvda && opregion->asle->rvds) {
> opregion->rvda = memremap(opregion->asle->rvda,
> opregion->asle->rvds,
> MEMREMAP_WB);
> --
> 2.20.1
--
Ville Syrjälä
Intel
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next prev parent reply other threads:[~2019-02-08 16:23 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-02-08 12:43 [PATCH 1/3] drm/i915/opregion: fix version check Jani Nikula
2019-02-08 12:43 ` [PATCH 2/3] drm/i915/opregion: rvda is relative from opregion base in opregion 2.1+ Jani Nikula
2019-02-08 12:43 ` [PATCH 3/3] HACK: drm/i915/opregion: ICL should have opregion 2.1+ and relative rvda Jani Nikula
2019-02-08 14:08 ` ✗ Fi.CI.CHECKPATCH: warning for series starting with [1/3] drm/i915/opregion: fix version check Patchwork
2019-02-08 14:29 ` ✗ Fi.CI.BAT: failure " Patchwork
2019-02-08 15:09 ` [PATCH 1/3] " Jani Nikula
2019-02-08 15:11 ` Imre Deak
2019-02-08 15:57 ` Ville Syrjälä
2019-02-08 16:12 ` Ville Syrjälä
2019-02-08 18:02 ` Jani Nikula
2019-02-08 18:18 ` Jani Nikula
2019-02-08 16:23 ` Ville Syrjälä [this message]
2019-02-08 17:54 ` Jani Nikula
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