[Intel-gfx] [PATCH 1/4] drm/i915: make new intel_tc.c use uncore accessors
Jani Nikula
jani.nikula at linux.intel.com
Mon Aug 5 09:48:16 UTC 2019
On Wed, 03 Jul 2019, Lucas De Marchi <lucas.demarchi at intel.com> wrote:
> Let's make the just created intel_tc.c already follow the trend of using
> i915 instead of dev_priv and calling the intel_uncore_*() functions.
I'm not sure we all agreed on using intel_uncore_{read,write}() in
display/ code yet though. There's considerably more register reads and
writes across the board than anywhere else.
BR,
Jani.
>
> Signed-off-by: Lucas De Marchi <lucas.demarchi at intel.com>
> ---
> drivers/gpu/drm/i915/display/intel_tc.c | 57 ++++++++++++++-----------
> 1 file changed, 31 insertions(+), 26 deletions(-)
>
> diff --git a/drivers/gpu/drm/i915/display/intel_tc.c b/drivers/gpu/drm/i915/display/intel_tc.c
> index 53103a9aa8a7..1a9dd32fb0a5 100644
> --- a/drivers/gpu/drm/i915/display/intel_tc.c
> +++ b/drivers/gpu/drm/i915/display/intel_tc.c
> @@ -24,11 +24,12 @@ static const char *tc_port_mode_name(enum tc_port_mode mode)
>
> u32 intel_tc_port_get_lane_mask(struct intel_digital_port *dig_port)
> {
> - struct drm_i915_private *dev_priv = to_i915(dig_port->base.base.dev);
> - enum tc_port tc_port = intel_port_to_tc(dev_priv, dig_port->base.port);
> + struct drm_i915_private *i915 = to_i915(dig_port->base.base.dev);
> + enum tc_port tc_port = intel_port_to_tc(i915, dig_port->base.port);
> + struct intel_uncore *uncore = &i915->uncore;
> u32 lane_mask;
>
> - lane_mask = I915_READ(PORT_TX_DFLEXDPSP);
> + lane_mask = intel_uncore_read(uncore, PORT_TX_DFLEXDPSP);
>
> WARN_ON(lane_mask == 0xffffffff);
>
> @@ -38,7 +39,7 @@ u32 intel_tc_port_get_lane_mask(struct intel_digital_port *dig_port)
>
> int intel_tc_port_fia_max_lane_count(struct intel_digital_port *dig_port)
> {
> - struct drm_i915_private *dev_priv = to_i915(dig_port->base.base.dev);
> + struct drm_i915_private *i915 = to_i915(dig_port->base.base.dev);
> intel_wakeref_t wakeref;
> u32 lane_mask;
>
> @@ -46,7 +47,7 @@ int intel_tc_port_fia_max_lane_count(struct intel_digital_port *dig_port)
> return 4;
>
> lane_mask = 0;
> - with_intel_display_power(dev_priv, POWER_DOMAIN_DISPLAY_CORE, wakeref)
> + with_intel_display_power(i915, POWER_DOMAIN_DISPLAY_CORE, wakeref)
> lane_mask = intel_tc_port_get_lane_mask(dig_port);
>
> switch (lane_mask) {
> @@ -89,12 +90,13 @@ static void tc_port_fixup_legacy_flag(struct intel_digital_port *dig_port,
>
> static u32 tc_port_live_status_mask(struct intel_digital_port *dig_port)
> {
> - struct drm_i915_private *dev_priv = to_i915(dig_port->base.base.dev);
> - enum tc_port tc_port = intel_port_to_tc(dev_priv, dig_port->base.port);
> + struct drm_i915_private *i915 = to_i915(dig_port->base.base.dev);
> + enum tc_port tc_port = intel_port_to_tc(i915, dig_port->base.port);
> + struct intel_uncore *uncore = &i915->uncore;
> u32 mask = 0;
> u32 val;
>
> - val = I915_READ(PORT_TX_DFLEXDPSP);
> + val = intel_uncore_read(uncore, PORT_TX_DFLEXDPSP);
>
> if (val == 0xffffffff) {
> DRM_DEBUG_KMS("Port %s: PHY in TCCOLD, nothing connected\n",
> @@ -107,7 +109,7 @@ static u32 tc_port_live_status_mask(struct intel_digital_port *dig_port)
> if (val & TC_LIVE_STATE_TC(tc_port))
> mask |= BIT(TC_PORT_DP_ALT);
>
> - if (I915_READ(SDEISR) & SDE_TC_HOTPLUG_ICP(tc_port))
> + if (intel_uncore_read(uncore, SDEISR) & SDE_TC_HOTPLUG_ICP(tc_port))
> mask |= BIT(TC_PORT_LEGACY);
>
> /* The sink can be connected only in a single mode. */
> @@ -119,11 +121,12 @@ static u32 tc_port_live_status_mask(struct intel_digital_port *dig_port)
>
> static bool icl_tc_phy_status_complete(struct intel_digital_port *dig_port)
> {
> - struct drm_i915_private *dev_priv = to_i915(dig_port->base.base.dev);
> - enum tc_port tc_port = intel_port_to_tc(dev_priv, dig_port->base.port);
> + struct drm_i915_private *i915 = to_i915(dig_port->base.base.dev);
> + enum tc_port tc_port = intel_port_to_tc(i915, dig_port->base.port);
> + struct intel_uncore *uncore = &i915->uncore;
> u32 val;
>
> - val = I915_READ(PORT_TX_DFLEXDPPMS);
> + val = intel_uncore_read(uncore, PORT_TX_DFLEXDPPMS);
> if (val == 0xffffffff) {
> DRM_DEBUG_KMS("Port %s: PHY in TCCOLD, assuming not complete\n",
> dig_port->tc_port_name);
> @@ -136,11 +139,12 @@ static bool icl_tc_phy_status_complete(struct intel_digital_port *dig_port)
> static bool icl_tc_phy_set_safe_mode(struct intel_digital_port *dig_port,
> bool enable)
> {
> - struct drm_i915_private *dev_priv = to_i915(dig_port->base.base.dev);
> - enum tc_port tc_port = intel_port_to_tc(dev_priv, dig_port->base.port);
> + struct drm_i915_private *i915 = to_i915(dig_port->base.base.dev);
> + enum tc_port tc_port = intel_port_to_tc(i915, dig_port->base.port);
> + struct intel_uncore *uncore = &i915->uncore;
> u32 val;
>
> - val = I915_READ(PORT_TX_DFLEXDPCSSS);
> + val = intel_uncore_read(uncore, PORT_TX_DFLEXDPCSSS);
> if (val == 0xffffffff) {
> DRM_DEBUG_KMS("Port %s: PHY in TCCOLD, can't set safe-mode to %s\n",
> dig_port->tc_port_name,
> @@ -153,7 +157,7 @@ static bool icl_tc_phy_set_safe_mode(struct intel_digital_port *dig_port,
> if (!enable)
> val |= DP_PHY_MODE_STATUS_NOT_SAFE(tc_port);
>
> - I915_WRITE(PORT_TX_DFLEXDPCSSS, val);
> + intel_uncore_write(uncore, PORT_TX_DFLEXDPCSSS, val);
>
> if (enable && wait_for(!icl_tc_phy_status_complete(dig_port), 10))
> DRM_DEBUG_KMS("Port %s: PHY complete clear timed out\n",
> @@ -164,11 +168,12 @@ static bool icl_tc_phy_set_safe_mode(struct intel_digital_port *dig_port,
>
> static bool icl_tc_phy_is_in_safe_mode(struct intel_digital_port *dig_port)
> {
> - struct drm_i915_private *dev_priv = to_i915(dig_port->base.base.dev);
> - enum tc_port tc_port = intel_port_to_tc(dev_priv, dig_port->base.port);
> + struct drm_i915_private *i915 = to_i915(dig_port->base.base.dev);
> + enum tc_port tc_port = intel_port_to_tc(i915, dig_port->base.port);
> + struct intel_uncore *uncore = &i915->uncore;
> u32 val;
>
> - val = I915_READ(PORT_TX_DFLEXDPCSSS);
> + val = intel_uncore_read(uncore, PORT_TX_DFLEXDPCSSS);
> if (val == 0xffffffff) {
> DRM_DEBUG_KMS("Port %s: PHY in TCCOLD, assume safe mode\n",
> dig_port->tc_port_name);
> @@ -317,11 +322,11 @@ intel_tc_port_get_target_mode(struct intel_digital_port *dig_port)
> static void intel_tc_port_reset_mode(struct intel_digital_port *dig_port,
> int required_lanes)
> {
> - struct drm_i915_private *dev_priv = to_i915(dig_port->base.base.dev);
> + struct drm_i915_private *i915 = to_i915(dig_port->base.base.dev);
> enum tc_port_mode old_tc_mode = dig_port->tc_mode;
>
> - intel_display_power_flush_work(dev_priv);
> - WARN_ON(intel_display_power_is_enabled(dev_priv,
> + intel_display_power_flush_work(i915);
> + WARN_ON(intel_display_power_is_enabled(i915,
> intel_aux_power_domain(dig_port)));
>
> icl_tc_phy_disconnect(dig_port);
> @@ -404,10 +409,10 @@ bool intel_tc_port_connected(struct intel_digital_port *dig_port)
> static void __intel_tc_port_lock(struct intel_digital_port *dig_port,
> int required_lanes)
> {
> - struct drm_i915_private *dev_priv = to_i915(dig_port->base.base.dev);
> + struct drm_i915_private *i915 = to_i915(dig_port->base.base.dev);
> intel_wakeref_t wakeref;
>
> - wakeref = intel_display_power_get(dev_priv, POWER_DOMAIN_DISPLAY_CORE);
> + wakeref = intel_display_power_get(i915, POWER_DOMAIN_DISPLAY_CORE);
>
> mutex_lock(&dig_port->tc_lock);
>
> @@ -426,12 +431,12 @@ void intel_tc_port_lock(struct intel_digital_port *dig_port)
>
> void intel_tc_port_unlock(struct intel_digital_port *dig_port)
> {
> - struct drm_i915_private *dev_priv = to_i915(dig_port->base.base.dev);
> + struct drm_i915_private *i915 = to_i915(dig_port->base.base.dev);
> intel_wakeref_t wakeref = fetch_and_zero(&dig_port->tc_lock_wakeref);
>
> mutex_unlock(&dig_port->tc_lock);
>
> - intel_display_power_put_async(dev_priv, POWER_DOMAIN_DISPLAY_CORE,
> + intel_display_power_put_async(i915, POWER_DOMAIN_DISPLAY_CORE,
> wakeref);
> }
--
Jani Nikula, Intel Open Source Graphics Center
More information about the Intel-gfx
mailing list