On Mon, Feb 25, 2019 at 03:28:18PM +0200, Jani Nikula wrote:
> On Mon, 25 Feb 2019, Jani Nikula <jani.nikula@xxxxxxxxxxxxxxx> wrote:
> > On Fri, 22 Feb 2019, Ville Syrjala <ville.syrjala@xxxxxxxxxxxxxxx> wrote:
> >> From: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
> >>
> >> Add support for multiple independent pci quirk tables.
> >> I want to reuse the quirk table approach for some
> >> watermark quirks but I prefer to keep the details in
> >> one place rather than spreading them all over.
> >>
> >> Signed-off-by: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
> >
> > Reviewed-by: Jani Nikula <jani.nikula@xxxxxxxxx>
>
> Hmm. Not to block the series, but this got me thinking. See
> e.g. QUIRK_BACKLIGHT_PRESENT or QUIRK_INVERT_BRIGHTNESS. Should we
> localize those to their own quirk tables in intel_panel.c now?
Might be nice.
However we seem to have a sole DMI quirk for some backlight
stuff. That would need to be handled somehow as well.
>
> What if intel_apply_pci_quirks() returned an OR of the return values of
> the hooks. In a few cases we could nuke the use of dev_priv->quirks in
> favor of more localized quirks. The former backlight quirk need not be
> saved at all, it's a one time check, and the latter could be saved in
> the backlight struct.
>
> Something for the future, perhaps.
>
> BR,
> Jani.
>
>
> >
> >> ---
> >> drivers/gpu/drm/i915/intel_drv.h | 9 +++++++++
> >> drivers/gpu/drm/i915/intel_quirks.c | 28 +++++++++++++++-------------
> >> 2 files changed, 24 insertions(+), 13 deletions(-)
> >>
> >> diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h
> >> index 81ec73e4a083..8924b43d6e99 100644
> >> --- a/drivers/gpu/drm/i915/intel_drv.h
> >> +++ b/drivers/gpu/drm/i915/intel_drv.h
> >> @@ -2187,7 +2187,16 @@ int intel_psr_wait_for_idle(const struct intel_crtc_state *new_crtc_state,
> >> bool intel_psr_enabled(struct intel_dp *intel_dp);
> >>
> >> /* intel_quirks.c */
> >> +struct intel_pci_quirk {
> >> + int device;
> >> + int subsystem_vendor;
> >> + int subsystem_device;
> >> + void (*hook)(struct drm_i915_private *i915);
> >> +};
> >> +
> >> void intel_init_quirks(struct drm_i915_private *dev_priv);
> >> +void intel_apply_pci_quirks(struct drm_i915_private *i915,
> >> + const struct intel_pci_quirk *quirks);
> >>
> >> /* intel_runtime_pm.c */
> >> void intel_runtime_pm_init_early(struct drm_i915_private *dev_priv);
> >> diff --git a/drivers/gpu/drm/i915/intel_quirks.c b/drivers/gpu/drm/i915/intel_quirks.c
> >> index ec2b0fc92b8b..e073510553a6 100644
> >> --- a/drivers/gpu/drm/i915/intel_quirks.c
> >> +++ b/drivers/gpu/drm/i915/intel_quirks.c
> >> @@ -52,13 +52,6 @@ static void quirk_increase_ddi_disabled_time(struct drm_i915_private *i915)
> >> DRM_INFO("Applying Increase DDI Disabled quirk\n");
> >> }
> >>
> >> -struct intel_quirk {
> >> - int device;
> >> - int subsystem_vendor;
> >> - int subsystem_device;
> >> - void (*hook)(struct drm_i915_private *i915);
> >> -};
> >> -
> >> /* For systems that don't have a meaningful PCI subdevice/subvendor ID */
> >> struct intel_dmi_quirk {
> >> void (*hook)(struct drm_i915_private *i915);
> >> @@ -87,7 +80,7 @@ static const struct intel_dmi_quirk intel_dmi_quirks[] = {
> >> },
> >> };
> >>
> >> -static struct intel_quirk intel_quirks[] = {
> >> +static const struct intel_pci_quirk intel_pci_quirks[] = {
> >> /* Lenovo U160 cannot use SSC on LVDS */
> >> { 0x0046, 0x17aa, 0x3920, quirk_ssc_force_disable },
> >>
> >> @@ -145,16 +138,17 @@ static struct intel_quirk intel_quirks[] = {
> >> /* ASRock ITX*/
> >> { 0x3185, 0x1849, 0x2212, quirk_increase_ddi_disabled_time },
> >> { 0x3184, 0x1849, 0x2212, quirk_increase_ddi_disabled_time },
> >> +
> >> + {}
> >> };
> >>
> >> -void intel_init_quirks(struct drm_i915_private *i915)
> >> +void intel_apply_pci_quirks(struct drm_i915_private *i915,
> >> + const struct intel_pci_quirk *quirks)
> >> {
> >> struct pci_dev *d = i915->drm.pdev;
> >> - int i;
> >> -
> >> - for (i = 0; i < ARRAY_SIZE(intel_quirks); i++) {
> >> - struct intel_quirk *q = &intel_quirks[i];
> >> + const struct intel_pci_quirk *q;
> >>
> >> + for (q = quirks; q->device; q++) {
> >> if (d->device == q->device &&
> >> (d->subsystem_vendor == q->subsystem_vendor ||
> >> q->subsystem_vendor == PCI_ANY_ID) &&
> >> @@ -162,6 +156,14 @@ void intel_init_quirks(struct drm_i915_private *i915)
> >> q->subsystem_device == PCI_ANY_ID))
> >> q->hook(i915);
> >> }
> >> +}
> >> +
> >> +void intel_init_quirks(struct drm_i915_private *i915)
> >> +{
> >> + int i;
> >> +
> >> + intel_apply_pci_quirks(i915, intel_pci_quirks);
> >> +
> >> for (i = 0; i < ARRAY_SIZE(intel_dmi_quirks); i++) {
> >> if (dmi_check_system(*intel_dmi_quirks[i].dmi_id_list) != 0)
> >> intel_dmi_quirks[i].hook(i915);
>
> --
> Jani Nikula, Intel Open Source Graphics Center
--
Ville Syrjälä
Intel
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