On Mon, 14 May 2018, Dhinakaran Pandiyan <dhinakaran.pandiyan@xxxxxxxxx> wrote:
> On Mon, 2018-05-14 at 12:09 +0300, Jani Nikula wrote:
>> On Fri, 11 May 2018, Dhinakaran Pandiyan <dhinakaran.pandiyan@intel.c
>> om> wrote:
>> >
>> > PSR hardware and hence the driver code for VLV and CHV deviates a
>> > lot from
>> > their DDI counterparts. While the feature has been disabled for a
>> > long time
>> > now, retaining support for these platforms is a maintenance burden.
>> > There
>> > have been multiple refactoring commits to just keep the existing
>> > code for
>> > these platforms in line with the rest. There are known issues that
>> > need to
>> > be fixed to enable PSR on these platforms, and there is no PSR
>> > capable
>> > platform in CI to ensure the code does not break again if we get
>> > around to
>> > fixing the existing issues. On account of all these reasons, let's
>> > nuke
>> > this code for now and bring it back if a need arises in the future.
>> >
>> > Cc: Jani Nikula <jani.nikula@xxxxxxxxx>
>> > Cc: Rodrigo Vivi <rodrigo.vivi@xxxxxxxxx>
>> > Cc: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
>> > Signed-off-by: Dhinakaran Pandiyan <dhinakaran.pandiyan@xxxxxxxxx>
>> Acked-by: Jani Nikula <jani.nikula@xxxxxxxxx>
>>
> Thank you.
>
> Including Rodrigo's ack that was sent internally
> Acked-by: Rodrigo Vivi <rodrigo.vivi@xxxxxxxxx>
Pushed to dinq, thanks for the patch.
BR,
Jani.
>
>
>> >
>> > ---
>> > drivers/gpu/drm/i915/i915_debugfs.c | 42 +-----
>> > drivers/gpu/drm/i915/i915_drv.h | 1 -
>> > drivers/gpu/drm/i915/i915_pci.c | 2 -
>> > drivers/gpu/drm/i915/intel_drv.h | 2 -
>> > drivers/gpu/drm/i915/intel_frontbuffer.c | 2 -
>> > drivers/gpu/drm/i915/intel_psr.c | 248 +++--------------
>> > --------------
>> > 6 files changed, 27 insertions(+), 270 deletions(-)
>> >
>> > diff --git a/drivers/gpu/drm/i915/i915_debugfs.c
>> > b/drivers/gpu/drm/i915/i915_debugfs.c
>> > index 13e7b9e4a6e6..0096e209fe04 100644
>> > --- a/drivers/gpu/drm/i915/i915_debugfs.c
>> > +++ b/drivers/gpu/drm/i915/i915_debugfs.c
>> > @@ -2630,8 +2630,6 @@ static int i915_edp_psr_status(struct
>> > seq_file *m, void *data)
>> > {
>> > struct drm_i915_private *dev_priv = node_to_i915(m-
>> > >private);
>> > u32 psrperf = 0;
>> > - u32 stat[3];
>> > - enum pipe pipe;
>> > bool enabled = false;
>> > bool sink_support;
>> >
>> > @@ -2652,47 +2650,17 @@ static int i915_edp_psr_status(struct
>> > seq_file *m, void *data)
>> > seq_printf(m, "Re-enable work scheduled: %s\n",
>> > yesno(work_busy(&dev_priv->psr.work.work)));
>> >
>> > - if (HAS_DDI(dev_priv)) {
>> > - if (dev_priv->psr.psr2_enabled)
>> > - enabled = I915_READ(EDP_PSR2_CTL) &
>> > EDP_PSR2_ENABLE;
>> > - else
>> > - enabled = I915_READ(EDP_PSR_CTL) &
>> > EDP_PSR_ENABLE;
>> > - } else {
>> > - for_each_pipe(dev_priv, pipe) {
>> > - enum transcoder cpu_transcoder =
>> > - intel_pipe_to_cpu_transcoder(dev_p
>> > riv, pipe);
>> > - enum intel_display_power_domain
>> > power_domain;
>> > -
>> > - power_domain =
>> > POWER_DOMAIN_TRANSCODER(cpu_transcoder);
>> > - if
>> > (!intel_display_power_get_if_enabled(dev_priv,
>> > - po
>> > wer_domain))
>> > - continue;
>> > -
>> > - stat[pipe] = I915_READ(VLV_PSRSTAT(pipe))
>> > &
>> > - VLV_EDP_PSR_CURR_STATE_MASK;
>> > - if ((stat[pipe] ==
>> > VLV_EDP_PSR_ACTIVE_NORFB_UP) ||
>> > - (stat[pipe] ==
>> > VLV_EDP_PSR_ACTIVE_SF_UPDATE))
>> > - enabled = true;
>> > -
>> > - intel_display_power_put(dev_priv,
>> > power_domain);
>> > - }
>> > - }
>> > + if (dev_priv->psr.psr2_enabled)
>> > + enabled = I915_READ(EDP_PSR2_CTL) &
>> > EDP_PSR2_ENABLE;
>> > + else
>> > + enabled = I915_READ(EDP_PSR_CTL) & EDP_PSR_ENABLE;
>> >
>> > seq_printf(m, "Main link in standby mode: %s\n",
>> > yesno(dev_priv->psr.link_standby));
>> >
>> > - seq_printf(m, "HW Enabled & Active bit: %s",
>> > yesno(enabled));
>> > -
>> > - if (!HAS_DDI(dev_priv))
>> > - for_each_pipe(dev_priv, pipe) {
>> > - if ((stat[pipe] ==
>> > VLV_EDP_PSR_ACTIVE_NORFB_UP) ||
>> > - (stat[pipe] ==
>> > VLV_EDP_PSR_ACTIVE_SF_UPDATE))
>> > - seq_printf(m, " pipe %c",
>> > pipe_name(pipe));
>> > - }
>> > - seq_puts(m, "\n");
>> > + seq_printf(m, "HW Enabled & Active bit: %s\n",
>> > yesno(enabled));
>> >
>> > /*
>> > - * VLV/CHV PSR has no kind of performance counter
>> > * SKL+ Perf counter is reset to 0 everytime DC state is
>> > entered
>> > */
>> > if (IS_HASWELL(dev_priv) || IS_BROADWELL(dev_priv)) {
>> > diff --git a/drivers/gpu/drm/i915/i915_drv.h
>> > b/drivers/gpu/drm/i915/i915_drv.h
>> > index 57fb3aa09db0..7e2a400d33c3 100644
>> > --- a/drivers/gpu/drm/i915/i915_drv.h
>> > +++ b/drivers/gpu/drm/i915/i915_drv.h
>> > @@ -607,7 +607,6 @@ struct i915_psr {
>> > bool link_standby;
>> > bool colorimetry_support;
>> > bool alpm;
>> > - bool has_hw_tracking;
>> > bool psr2_enabled;
>> > u8 sink_sync_latency;
>> > bool debug;
>> > diff --git a/drivers/gpu/drm/i915/i915_pci.c
>> > b/drivers/gpu/drm/i915/i915_pci.c
>> > index 4364922e935d..97a91e6af7e3 100644
>> > --- a/drivers/gpu/drm/i915/i915_pci.c
>> > +++ b/drivers/gpu/drm/i915/i915_pci.c
>> > @@ -340,7 +340,6 @@ static const struct intel_device_info
>> > intel_valleyview_info = {
>> > GEN(7),
>> > .is_lp = 1,
>> > .num_pipes = 2,
>> > - .has_psr = 1,
>> > .has_runtime_pm = 1,
>> > .has_rc6 = 1,
>> > .has_gmch_display = 1,
>> > @@ -433,7 +432,6 @@ static const struct intel_device_info
>> > intel_cherryview_info = {
>> > .is_lp = 1,
>> > .ring_mask = RENDER_RING | BSD_RING | BLT_RING |
>> > VEBOX_RING,
>> > .has_64bit_reloc = 1,
>> > - .has_psr = 1,
>> > .has_runtime_pm = 1,
>> > .has_resource_streamer = 1,
>> > .has_rc6 = 1,
>> > diff --git a/drivers/gpu/drm/i915/intel_drv.h
>> > b/drivers/gpu/drm/i915/intel_drv.h
>> > index d7dbca1aabff..a2b4018803ab 100644
>> > --- a/drivers/gpu/drm/i915/intel_drv.h
>> > +++ b/drivers/gpu/drm/i915/intel_drv.h
>> > @@ -1913,8 +1913,6 @@ void intel_psr_flush(struct drm_i915_private
>> > *dev_priv,
>> > unsigned frontbuffer_bits,
>> > enum fb_op_origin origin);
>> > void intel_psr_init(struct drm_i915_private *dev_priv);
>> > -void intel_psr_single_frame_update(struct drm_i915_private
>> > *dev_priv,
>> > - unsigned frontbuffer_bits);
>> > void intel_psr_compute_config(struct intel_dp *intel_dp,
>> > struct intel_crtc_state
>> > *crtc_state);
>> > void intel_psr_irq_control(struct drm_i915_private *dev_priv, bool
>> > debug);
>> > diff --git a/drivers/gpu/drm/i915/intel_frontbuffer.c
>> > b/drivers/gpu/drm/i915/intel_frontbuffer.c
>> > index 7fff0a0eceb4..c3379bde266f 100644
>> > --- a/drivers/gpu/drm/i915/intel_frontbuffer.c
>> > +++ b/drivers/gpu/drm/i915/intel_frontbuffer.c
>> > @@ -153,8 +153,6 @@ void intel_frontbuffer_flip_prepare(struct
>> > drm_i915_private *dev_priv,
>> > /* Remove stale busy bits due to the old buffer. */
>> > dev_priv->fb_tracking.busy_bits &= ~frontbuffer_bits;
>> > spin_unlock(&dev_priv->fb_tracking.lock);
>> > -
>> > - intel_psr_single_frame_update(dev_priv, frontbuffer_bits);
>> > }
>> >
>> > /**
>> > diff --git a/drivers/gpu/drm/i915/intel_psr.c
>> > b/drivers/gpu/drm/i915/intel_psr.c
>> > index db27f2faa1de..29443d2c35bb 100644
>> > --- a/drivers/gpu/drm/i915/intel_psr.c
>> > +++ b/drivers/gpu/drm/i915/intel_psr.c
>> > @@ -97,10 +97,6 @@ void intel_psr_irq_control(struct
>> > drm_i915_private *dev_priv, bool debug)
>> > {
>> > u32 debug_mask, mask;
>> >
>> > - /* No PSR interrupts on VLV/CHV */
>> > - if (IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv))
>> > - return;
>> > -
>> > mask = EDP_PSR_ERROR(TRANSCODER_EDP);
>> > debug_mask = EDP_PSR_POST_EXIT(TRANSCODER_EDP) |
>> > EDP_PSR_PRE_ENTRY(TRANSCODER_EDP);
>> > @@ -284,31 +280,6 @@ void intel_psr_init_dpcd(struct intel_dp
>> > *intel_dp)
>> > }
>> > }
>> >
>> > -static bool vlv_is_psr_active_on_pipe(struct drm_device *dev, int
>> > pipe)
>> > -{
>> > - struct drm_i915_private *dev_priv = to_i915(dev);
>> > - uint32_t val;
>> > -
>> > - val = I915_READ(VLV_PSRSTAT(pipe)) &
>> > - VLV_EDP_PSR_CURR_STATE_MASK;
>> > - return (val == VLV_EDP_PSR_ACTIVE_NORFB_UP) ||
>> > - (val == VLV_EDP_PSR_ACTIVE_SF_UPDATE);
>> > -}
>> > -
>> > -static void vlv_psr_setup_vsc(struct intel_dp *intel_dp,
>> > - const struct intel_crtc_state
>> > *crtc_state)
>> > -{
>> > - struct intel_crtc *crtc = to_intel_crtc(crtc_state-
>> > >base.crtc);
>> > - struct drm_i915_private *dev_priv = to_i915(crtc-
>> > >base.dev);
>> > - uint32_t val;
>> > -
>> > - /* VLV auto-generate VSC package as per EDP 1.3 spec,
>> > Table 3.10 */
>> > - val = I915_READ(VLV_VSCSDP(crtc->pipe));
>> > - val &= ~VLV_EDP_PSR_SDP_FREQ_MASK;
>> > - val |= VLV_EDP_PSR_SDP_FREQ_EVFRAME;
>> > - I915_WRITE(VLV_VSCSDP(crtc->pipe), val);
>> > -}
>> > -
>> > static void hsw_psr_setup_vsc(struct intel_dp *intel_dp,
>> > const struct intel_crtc_state
>> > *crtc_state)
>> > {
>> > @@ -341,12 +312,6 @@ static void hsw_psr_setup_vsc(struct intel_dp
>> > *intel_dp,
>> > DP_SDP_VSC, &psr_vsc,
>> > sizeof(psr_vsc));
>> > }
>> >
>> > -static void vlv_psr_enable_sink(struct intel_dp *intel_dp)
>> > -{
>> > - drm_dp_dpcd_writeb(&intel_dp->aux, DP_PSR_EN_CFG,
>> > - DP_PSR_ENABLE |
>> > DP_PSR_MAIN_LINK_ACTIVE);
>> > -}
>> > -
>> > static void hsw_psr_setup_aux(struct intel_dp *intel_dp)
>> > {
>> > struct intel_digital_port *dig_port =
>> > dp_to_dig_port(intel_dp);
>> > @@ -403,38 +368,6 @@ static void hsw_psr_enable_sink(struct
>> > intel_dp *intel_dp)
>> > drm_dp_dpcd_writeb(&intel_dp->aux, DP_SET_POWER,
>> > DP_SET_POWER_D0);
>> > }
>> >
>> > -static void vlv_psr_enable_source(struct intel_dp *intel_dp,
>> > - const struct intel_crtc_state
>> > *crtc_state)
>> > -{
>> > - struct intel_digital_port *dig_port =
>> > dp_to_dig_port(intel_dp);
>> > - struct drm_i915_private *dev_priv = to_i915(dig_port-
>> > >base.base.dev);
>> > - struct intel_crtc *crtc = to_intel_crtc(crtc_state-
>> > >base.crtc);
>> > -
>> > - /* Transition from PSR_state 0 (disabled) to PSR_state 1
>> > (inactive) */
>> > - I915_WRITE(VLV_PSRCTL(crtc->pipe),
>> > - VLV_EDP_PSR_MODE_SW_TIMER |
>> > - VLV_EDP_PSR_SRC_TRANSMITTER_STATE |
>> > - VLV_EDP_PSR_ENABLE);
>> > -}
>> > -
>> > -static void vlv_psr_activate(struct intel_dp *intel_dp)
>> > -{
>> > - struct intel_digital_port *dig_port =
>> > dp_to_dig_port(intel_dp);
>> > - struct drm_device *dev = dig_port->base.base.dev;
>> > - struct drm_i915_private *dev_priv = to_i915(dev);
>> > - struct drm_crtc *crtc = dig_port->base.base.crtc;
>> > - enum pipe pipe = to_intel_crtc(crtc)->pipe;
>> > -
>> > - /*
>> > - * Let's do the transition from PSR_state 1 (inactive) to
>> > - * PSR_state 2 (transition to active - static frame
>> > transmission).
>> > - * Then Hardware is responsible for the transition to
>> > - * PSR_state 3 (active - no Remote Frame Buffer (RFB)
>> > update).
>> > - */
>> > - I915_WRITE(VLV_PSRCTL(pipe), I915_READ(VLV_PSRCTL(pipe)) |
>> > - VLV_EDP_PSR_ACTIVE_ENTRY);
>> > -}
>> > -
>> > static void hsw_activate_psr1(struct intel_dp *intel_dp)
>> > {
>> > struct intel_digital_port *dig_port =
>> > dp_to_dig_port(intel_dp);
>> > @@ -602,17 +535,11 @@ void intel_psr_compute_config(struct intel_dp
>> > *intel_dp,
>> > * ones. Since by Display design transcoder EDP is tied to
>> > port A
>> > * we can safely escape based on the port A.
>> > */
>> > - if (HAS_DDI(dev_priv) && dig_port->base.port != PORT_A) {
>> > + if (dig_port->base.port != PORT_A) {
>> > DRM_DEBUG_KMS("PSR condition failed: Port not
>> > supported\n");
>> > return;
>> > }
>> >
>> > - if ((IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv))
>> > &&
>> > - !dev_priv->psr.link_standby) {
>> > - DRM_ERROR("PSR condition failed: Link off
>> > requested but not supported on this platform\n");
>> > - return;
>> > - }
>> > -
>> > if (IS_HASWELL(dev_priv) &&
>> > I915_READ(HSW_STEREO_3D_CTL(crtc_state-
>> > >cpu_transcoder)) &
>> > S3D_ENABLE) {
>> > @@ -760,7 +687,6 @@ void intel_psr_enable(struct intel_dp
>> > *intel_dp,
>> > * enabled.
>> > * However on some platforms we face issues when
>> > first
>> > * activation follows a modeset so quickly.
>> > - * - On VLV/CHV we get bank screen on first
>> > activation
>> > * - On HSW/BDW we get a recoverable frozen
>> > screen until
>> > * next exit-activate sequence.
>> > */
>> > @@ -772,36 +698,6 @@ void intel_psr_enable(struct intel_dp
>> > *intel_dp,
>> > mutex_unlock(&dev_priv->psr.lock);
>> > }
>> >
>> > -static void vlv_psr_disable(struct intel_dp *intel_dp,
>> > - const struct intel_crtc_state
>> > *old_crtc_state)
>> > -{
>> > - struct intel_digital_port *intel_dig_port =
>> > dp_to_dig_port(intel_dp);
>> > - struct drm_device *dev = intel_dig_port->base.base.dev;
>> > - struct drm_i915_private *dev_priv = to_i915(dev);
>> > - struct intel_crtc *crtc = to_intel_crtc(old_crtc_state-
>> > >base.crtc);
>> > - uint32_t val;
>> > -
>> > - if (dev_priv->psr.active) {
>> > - /* Put VLV PSR back to PSR_state 0 (disabled). */
>> > - if (intel_wait_for_register(dev_priv,
>> > - VLV_PSRSTAT(crtc-
>> > >pipe),
>> > - VLV_EDP_PSR_IN_TRANS,
>> > - 0,
>> > - 1))
>> > - WARN(1, "PSR transition took longer than
>> > expected\n");
>> > -
>> > - val = I915_READ(VLV_PSRCTL(crtc->pipe));
>> > - val &= ~VLV_EDP_PSR_ACTIVE_ENTRY;
>> > - val &= ~VLV_EDP_PSR_ENABLE;
>> > - val &= ~VLV_EDP_PSR_MODE_MASK;
>> > - I915_WRITE(VLV_PSRCTL(crtc->pipe), val);
>> > -
>> > - dev_priv->psr.active = false;
>> > - } else {
>> > - WARN_ON(vlv_is_psr_active_on_pipe(dev, crtc-
>> > >pipe));
>> > - }
>> > -}
>> > -
>> > static void hsw_psr_disable(struct intel_dp *intel_dp,
>> > const struct intel_crtc_state
>> > *old_crtc_state)
>> > {
>> > @@ -894,21 +790,12 @@ static bool psr_wait_for_idle(struct
>> > drm_i915_private *dev_priv)
>> > if (!intel_dp)
>> > return false;
>> >
>> > - if (HAS_DDI(dev_priv)) {
>> > - if (dev_priv->psr.psr2_enabled) {
>> > - reg = EDP_PSR2_STATUS;
>> > - mask = EDP_PSR2_STATUS_STATE_MASK;
>> > - } else {
>> > - reg = EDP_PSR_STATUS;
>> > - mask = EDP_PSR_STATUS_STATE_MASK;
>> > - }
>> > + if (dev_priv->psr.psr2_enabled) {
>> > + reg = EDP_PSR2_STATUS;
>> > + mask = EDP_PSR2_STATUS_STATE_MASK;
>> > } else {
>> > - struct drm_crtc *crtc =
>> > - dp_to_dig_port(intel_dp)->base.base.crtc;
>> > - enum pipe pipe = to_intel_crtc(crtc)->pipe;
>> > -
>> > - reg = VLV_PSRSTAT(pipe);
>> > - mask = VLV_EDP_PSR_IN_TRANS;
>> > + reg = EDP_PSR_STATUS;
>> > + mask = EDP_PSR_STATUS_STATE_MASK;
>> > }
>> >
>> > mutex_unlock(&dev_priv->psr.lock);
>> > @@ -953,102 +840,23 @@ static void intel_psr_work(struct
>> > work_struct *work)
>> >
>> > static void intel_psr_exit(struct drm_i915_private *dev_priv)
>> > {
>> > - struct intel_dp *intel_dp = dev_priv->psr.enabled;
>> > - struct drm_crtc *crtc = dp_to_dig_port(intel_dp)-
>> > >base.base.crtc;
>> > - enum pipe pipe = to_intel_crtc(crtc)->pipe;
>> > u32 val;
>> >
>> > if (!dev_priv->psr.active)
>> > return;
>> >
>> > - if (HAS_DDI(dev_priv)) {
>> > - if (dev_priv->psr.psr2_enabled) {
>> > - val = I915_READ(EDP_PSR2_CTL);
>> > - WARN_ON(!(val & EDP_PSR2_ENABLE));
>> > - I915_WRITE(EDP_PSR2_CTL, val &
>> > ~EDP_PSR2_ENABLE);
>> > - } else {
>> > - val = I915_READ(EDP_PSR_CTL);
>> > - WARN_ON(!(val & EDP_PSR_ENABLE));
>> > - I915_WRITE(EDP_PSR_CTL, val &
>> > ~EDP_PSR_ENABLE);
>> > - }
>> > + if (dev_priv->psr.psr2_enabled) {
>> > + val = I915_READ(EDP_PSR2_CTL);
>> > + WARN_ON(!(val & EDP_PSR2_ENABLE));
>> > + I915_WRITE(EDP_PSR2_CTL, val & ~EDP_PSR2_ENABLE);
>> > } else {
>> > - val = I915_READ(VLV_PSRCTL(pipe));
>> > -
>> > - /*
>> > - * Here we do the transition drirectly from
>> > - * PSR_state 3 (active - no Remote Frame Buffer
>> > (RFB) update) to
>> > - * PSR_state 5 (exit).
>> > - * PSR State 4 (active with single frame update)
>> > can be skipped.
>> > - * On PSR_state 5 (exit) Hardware is responsible
>> > to transition
>> > - * back to PSR_state 1 (inactive).
>> > - * Now we are at Same state after
>> > vlv_psr_enable_source.
>> > - */
>> > - val &= ~VLV_EDP_PSR_ACTIVE_ENTRY;
>> > - I915_WRITE(VLV_PSRCTL(pipe), val);
>> > -
>> > - /*
>> > - * Send AUX wake up - Spec says after
>> > transitioning to PSR
>> > - * active we have to send AUX wake up by writing
>> > 01h in DPCD
>> > - * 600h of sink device.
>> > - * XXX: This might slow down the transition, but
>> > without this
>> > - * HW doesn't complete the transition to PSR_state
>> > 1 and we
>> > - * never get the screen updated.
>> > - */
>> > - drm_dp_dpcd_writeb(&intel_dp->aux, DP_SET_POWER,
>> > - DP_SET_POWER_D0);
>> > + val = I915_READ(EDP_PSR_CTL);
>> > + WARN_ON(!(val & EDP_PSR_ENABLE));
>> > + I915_WRITE(EDP_PSR_CTL, val & ~EDP_PSR_ENABLE);
>> > }
>> > -
>> > dev_priv->psr.active = false;
>> > }
>> >
>> > -/**
>> > - * intel_psr_single_frame_update - Single Frame Update
>> > - * @dev_priv: i915 device
>> > - * @frontbuffer_bits: frontbuffer plane tracking bits
>> > - *
>> > - * Some platforms support a single frame update feature that is
>> > used to
>> > - * send and update only one frame on Remote Frame Buffer.
>> > - * So far it is only implemented for Valleyview and Cherryview
>> > because
>> > - * hardware requires this to be done before a page flip.
>> > - */
>> > -void intel_psr_single_frame_update(struct drm_i915_private
>> > *dev_priv,
>> > - unsigned frontbuffer_bits)
>> > -{
>> > - struct drm_crtc *crtc;
>> > - enum pipe pipe;
>> > - u32 val;
>> > -
>> > - if (!CAN_PSR(dev_priv))
>> > - return;
>> > -
>> > - /*
>> > - * Single frame update is already supported on BDW+ but it
>> > requires
>> > - * many W/A and it isn't really needed.
>> > - */
>> > - if (!IS_VALLEYVIEW(dev_priv) && !IS_CHERRYVIEW(dev_priv))
>> > - return;
>> > -
>> > - mutex_lock(&dev_priv->psr.lock);
>> > - if (!dev_priv->psr.enabled) {
>> > - mutex_unlock(&dev_priv->psr.lock);
>> > - return;
>> > - }
>> > -
>> > - crtc = dp_to_dig_port(dev_priv->psr.enabled)-
>> > >base.base.crtc;
>> > - pipe = to_intel_crtc(crtc)->pipe;
>> > -
>> > - if (frontbuffer_bits & INTEL_FRONTBUFFER_ALL_MASK(pipe)) {
>> > - val = I915_READ(VLV_PSRCTL(pipe));
>> > -
>> > - /*
>> > - * We need to set this bit before writing
>> > registers for a flip.
>> > - * This bit will be self-clear when it gets to the
>> > PSR active state.
>> > - */
>> > - I915_WRITE(VLV_PSRCTL(pipe), val |
>> > VLV_EDP_PSR_SINGLE_FRAME_UPDATE);
>> > - }
>> > - mutex_unlock(&dev_priv->psr.lock);
>> > -}
>> > -
>> > /**
>> > * intel_psr_invalidate - Invalidade PSR
>> > * @dev_priv: i915 device
>> > @@ -1071,7 +879,7 @@ void intel_psr_invalidate(struct
>> > drm_i915_private *dev_priv,
>> > if (!CAN_PSR(dev_priv))
>> > return;
>> >
>> > - if (dev_priv->psr.has_hw_tracking && origin ==
>> > ORIGIN_FLIP)
>> > + if (origin == ORIGIN_FLIP)
>> > return;
>> >
>> > mutex_lock(&dev_priv->psr.lock);
>> > @@ -1114,7 +922,7 @@ void intel_psr_flush(struct drm_i915_private
>> > *dev_priv,
>> > if (!CAN_PSR(dev_priv))
>> > return;
>> >
>> > - if (dev_priv->psr.has_hw_tracking && origin ==
>> > ORIGIN_FLIP)
>> > + if (origin == ORIGIN_FLIP)
>> > return;
>> >
>> > mutex_lock(&dev_priv->psr.lock);
>> > @@ -1131,8 +939,7 @@ void intel_psr_flush(struct drm_i915_private
>> > *dev_priv,
>> >
>> > /* By definition flush = invalidate + flush */
>> > if (frontbuffer_bits) {
>> > - if (dev_priv->psr.psr2_enabled ||
>> > - IS_VALLEYVIEW(dev_priv) ||
>> > IS_CHERRYVIEW(dev_priv)) {
>> > + if (dev_priv->psr.psr2_enabled) {
>> > intel_psr_exit(dev_priv);
>> > } else {
>> > /*
>> > @@ -1184,9 +991,6 @@ void intel_psr_init(struct drm_i915_private
>> > *dev_priv)
>> > if (IS_HASWELL(dev_priv) || IS_BROADWELL(dev_priv))
>> > /* HSW and BDW require workarounds that we don't
>> > implement. */
>> > dev_priv->psr.link_standby = false;
>> > - else if (IS_VALLEYVIEW(dev_priv) ||
>> > IS_CHERRYVIEW(dev_priv))
>> > - /* On VLV and CHV only standby mode is supported.
>> > */
>> > - dev_priv->psr.link_standby = true;
>> > else
>> > /* For new platforms let's respect VBT back again
>> > */
>> > dev_priv->psr.link_standby = dev_priv-
>> > >vbt.psr.full_link;
>> > @@ -1204,18 +1008,10 @@ void intel_psr_init(struct drm_i915_private
>> > *dev_priv)
>> > INIT_DELAYED_WORK(&dev_priv->psr.work, intel_psr_work);
>> > mutex_init(&dev_priv->psr.lock);
>> >
>> > - if (IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv)) {
>> > - dev_priv->psr.enable_source =
>> > vlv_psr_enable_source;
>> > - dev_priv->psr.disable_source = vlv_psr_disable;
>> > - dev_priv->psr.enable_sink = vlv_psr_enable_sink;
>> > - dev_priv->psr.activate = vlv_psr_activate;
>> > - dev_priv->psr.setup_vsc = vlv_psr_setup_vsc;
>> > - } else {
>> > - dev_priv->psr.has_hw_tracking = true;
>> > - dev_priv->psr.enable_source =
>> > hsw_psr_enable_source;
>> > - dev_priv->psr.disable_source = hsw_psr_disable;
>> > - dev_priv->psr.enable_sink = hsw_psr_enable_sink;
>> > - dev_priv->psr.activate = hsw_psr_activate;
>> > - dev_priv->psr.setup_vsc = hsw_psr_setup_vsc;
>> > - }
>> > + dev_priv->psr.enable_source = hsw_psr_enable_source;
>> > + dev_priv->psr.disable_source = hsw_psr_disable;
>> > + dev_priv->psr.enable_sink = hsw_psr_enable_sink;
>> > + dev_priv->psr.activate = hsw_psr_activate;
>> > + dev_priv->psr.setup_vsc = hsw_psr_setup_vsc;
>> > +
>> > }
--
Jani Nikula, Intel Open Source Graphics Center
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