On Tue, Sep 24, 2024 at 04:35:25PM -0400, Rodrigo Vivi wrote:
> Move display related shutdown sequences from i915_driver to
> intel_display_driver.
>
> No functional change. Just taking the right ownership and
> start some reconciliation of them between i915 and Xe.
>
> Signed-off-by: Rodrigo Vivi <rodrigo.vivi@xxxxxxxxx>
> ---
> .../drm/i915/display/intel_display_driver.c | 40 +++++++++++++++++++
> .../drm/i915/display/intel_display_driver.h | 3 ++
> drivers/gpu/drm/i915/i915_driver.c | 29 ++------------
> 3 files changed, 47 insertions(+), 25 deletions(-)
>
> diff --git a/drivers/gpu/drm/i915/display/intel_display_driver.c b/drivers/gpu/drm/i915/display/intel_display_driver.c
> index c106fb2dd20b..e40b1105168e 100644
> --- a/drivers/gpu/drm/i915/display/intel_display_driver.c
> +++ b/drivers/gpu/drm/i915/display/intel_display_driver.c
> @@ -39,6 +39,7 @@
> #include "intel_dp_tunnel.h"
> #include "intel_dpll.h"
> #include "intel_dpll_mgr.h"
> +#include "intel_encoder.h"
> #include "intel_fb.h"
> #include "intel_fbc.h"
> #include "intel_fbdev.h"
> @@ -755,3 +756,42 @@ void intel_display_driver_resume(struct drm_i915_private *i915)
> if (state)
> drm_atomic_state_put(state);
> }
> +
> +void intel_display_driver_shutdown(struct drm_i915_private *i915)
> +{
> + intel_power_domains_disable(i915);
> +
> + intel_fbdev_set_suspend(&i915->drm, FBINFO_STATE_SUSPENDED, true);
> + if (HAS_DISPLAY(i915)) {
> + drm_kms_helper_poll_disable(&i915->drm);
> + intel_display_driver_disable_user_access(i915);
> +
> + drm_atomic_helper_shutdown(&i915->drm);
> + }
> +
> + intel_dp_mst_suspend(i915);
> +}
> +
> +void intel_display_driver_shutdown_noirq(struct drm_i915_private *i915)
> +{
> + intel_hpd_cancel_work(i915);
> +
> + if (HAS_DISPLAY(i915))
> + intel_display_driver_suspend_access(i915);
> +
> + intel_encoder_suspend_all(&i915->display);
> + intel_encoder_shutdown_all(&i915->display);
> +
> + intel_dmc_suspend(&i915->display);
> +}
> +
> +void intel_display_driver_shutdown_nogem(struct drm_i915_private *i915)
> +{
> + /*
> + * The only requirement is to reboot with display DC states disabled,
> + * for now leaving all display power wells in the INIT power domain
> + * enabled.
> + */
> +
> + intel_power_domains_driver_remove(i915);
> +}
> diff --git a/drivers/gpu/drm/i915/display/intel_display_driver.h b/drivers/gpu/drm/i915/display/intel_display_driver.h
> index 42cc4af6d3fd..1ee37fb58d38 100644
> --- a/drivers/gpu/drm/i915/display/intel_display_driver.h
> +++ b/drivers/gpu/drm/i915/display/intel_display_driver.h
> @@ -26,6 +26,9 @@ void intel_display_driver_remove_nogem(struct drm_i915_private *i915);
> void intel_display_driver_unregister(struct drm_i915_private *i915);
> int intel_display_driver_suspend(struct drm_i915_private *i915);
> void intel_display_driver_resume(struct drm_i915_private *i915);
> +void intel_display_driver_shutdown(struct drm_i915_private *i915);
> +void intel_display_driver_shutdown_noirq(struct drm_i915_private *i915);
> +void intel_display_driver_shutdown_nogem(struct drm_i915_private *i915);
>
> /* interface for intel_display_reset.c */
> int __intel_display_driver_resume(struct drm_i915_private *i915,
> diff --git a/drivers/gpu/drm/i915/i915_driver.c b/drivers/gpu/drm/i915/i915_driver.c
> index ae5906885359..38c845ad86e5 100644
> --- a/drivers/gpu/drm/i915/i915_driver.c
> +++ b/drivers/gpu/drm/i915/i915_driver.c
> @@ -939,43 +939,22 @@ void i915_driver_shutdown(struct drm_i915_private *i915)
> {
> disable_rpm_wakeref_asserts(&i915->runtime_pm);
> intel_runtime_pm_disable(&i915->runtime_pm);
> - intel_power_domains_disable(i915);
>
> - intel_fbdev_set_suspend(&i915->drm, FBINFO_STATE_SUSPENDED, true);
> - if (HAS_DISPLAY(i915)) {
> - drm_kms_helper_poll_disable(&i915->drm);
> - intel_display_driver_disable_user_access(i915);
> -
> - drm_atomic_helper_shutdown(&i915->drm);
> - }
> -
> - intel_dp_mst_suspend(i915);
> + intel_display_driver_shutdown(i915);
>
> intel_irq_suspend(i915);
> - intel_hpd_cancel_work(i915);
> -
> - if (HAS_DISPLAY(i915))
> - intel_display_driver_suspend_access(i915);
>
> - intel_encoder_suspend_all(&i915->display);
> - intel_encoder_shutdown_all(&i915->display);
> -
> - intel_dmc_suspend(&i915->display);
> + intel_display_driver_shutdown_noirq(i915);
>
> i915_gem_suspend(i915);
>
> - /*
> - * The only requirement is to reboot with display DC states disabled,
> - * for now leaving all display power wells in the INIT power domain
> - * enabled.
> - *
> - * TODO:
> + /* TODO:
> * - unify the pci_driver::shutdown sequence here with the
> * pci_driver.driver.pm.poweroff,poweroff_late sequence.
> * - unify the driver remove and system/runtime suspend sequences with
> * the above unified shutdown/poweroff sequence.
> */
> - intel_power_domains_driver_remove(i915);
> +
Should intel_display_driver_shutdown_nogem() be called here?
> enable_rpm_wakeref_asserts(&i915->runtime_pm);
>
> intel_runtime_pm_driver_last_release(&i915->runtime_pm);
> --
> 2.46.0
>
