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drm/i915: Calculate PSR register offsets from base + gen

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Future generations will be changing these registers (thanks to design
for giving us an early heads up). To help abstract, create the
definition of the base of the register block, and define all registers
relative to that.

Design has promised to not change the offsets relative to the base.

v2: Also change IS_HASWELL checks to HAS_PSR

CC: Rodrigo Vivi <rodrigo.vivi@gmail.com>
CC: Intel GFX <intel-gfx@lists.freedesktop.org>
Signed-off-by: Ben Widawsky <ben@bwidawsk.net>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
Ben Widawsky
2013-09-20 09:35:30 -07:00
committed by Daniel Vetter
parent 50003939b5
commit 18b5992c37
4 changed files with 28 additions and 24 deletions
Download Patch File Download Diff File Expand all files Collapse all files

21
drivers/gpu/drm/i915/intel_dp.c
View File

@@ -1496,10 +1496,10 @@ static bool intel_edp_is_psr_enabled(struct drm_device *dev)
{
struct drm_i915_private *dev_priv = dev->dev_private;
if (!IS_HASWELL(dev))
if (!HAS_PSR(dev))
return false;
return I915_READ(EDP_PSR_CTL) & EDP_PSR_ENABLE;
return I915_READ(EDP_PSR_CTL(dev)) & EDP_PSR_ENABLE;
}
static void intel_edp_psr_write_vsc(struct intel_dp *intel_dp,
@@ -1549,7 +1549,7 @@ static void intel_edp_psr_setup(struct intel_dp *intel_dp)
intel_edp_psr_write_vsc(intel_dp, &psr_vsc);
/* Avoid continuous PSR exit by masking memup and hpd */
I915_WRITE(EDP_PSR_DEBUG_CTL, EDP_PSR_DEBUG_MASK_MEMUP |
I915_WRITE(EDP_PSR_DEBUG_CTL(dev), EDP_PSR_DEBUG_MASK_MEMUP |
EDP_PSR_DEBUG_MASK_HPD);
intel_dp->psr_setup_done = true;
@@ -1574,9 +1574,9 @@ static void intel_edp_psr_enable_sink(struct intel_dp *intel_dp)
DP_PSR_MAIN_LINK_ACTIVE);
/* Setup AUX registers */
I915_WRITE(EDP_PSR_AUX_DATA1, EDP_PSR_DPCD_COMMAND);
I915_WRITE(EDP_PSR_AUX_DATA2, EDP_PSR_DPCD_NORMAL_OPERATION);
I915_WRITE(EDP_PSR_AUX_CTL,
I915_WRITE(EDP_PSR_AUX_DATA1(dev), EDP_PSR_DPCD_COMMAND);
I915_WRITE(EDP_PSR_AUX_DATA2(dev), EDP_PSR_DPCD_NORMAL_OPERATION);
I915_WRITE(EDP_PSR_AUX_CTL(dev),
DP_AUX_CH_CTL_TIME_OUT_400us |
(msg_size << DP_AUX_CH_CTL_MESSAGE_SIZE_SHIFT) |
(precharge << DP_AUX_CH_CTL_PRECHARGE_2US_SHIFT) |
@@ -1599,7 +1599,7 @@ static void intel_edp_psr_enable_source(struct intel_dp *intel_dp)
} else
val |= EDP_PSR_LINK_DISABLE;
I915_WRITE(EDP_PSR_CTL, val |
I915_WRITE(EDP_PSR_CTL(dev), val |
EDP_PSR_MIN_LINK_ENTRY_TIME_8_LINES |
max_sleep_time << EDP_PSR_MAX_SLEEP_TIME_SHIFT |
idle_frames << EDP_PSR_IDLE_FRAME_SHIFT |
@@ -1616,7 +1616,7 @@ static bool intel_edp_psr_match_conditions(struct intel_dp *intel_dp)
struct drm_i915_gem_object *obj = to_intel_framebuffer(crtc->fb)->obj;
struct intel_encoder *intel_encoder = &dp_to_dig_port(intel_dp)->base;
if (!IS_HASWELL(dev)) {
if (!HAS_PSR(dev)) {
DRM_DEBUG_KMS("PSR not supported on this platform\n");
dev_priv->no_psr_reason = PSR_NO_SOURCE;
return false;
@@ -1720,10 +1720,11 @@ void intel_edp_psr_disable(struct intel_dp *intel_dp)
if (!intel_edp_is_psr_enabled(dev))
return;
I915_WRITE(EDP_PSR_CTL, I915_READ(EDP_PSR_CTL) & ~EDP_PSR_ENABLE);
I915_WRITE(EDP_PSR_CTL(dev),
I915_READ(EDP_PSR_CTL(dev)) & ~EDP_PSR_ENABLE);
/* Wait till PSR is idle */
if (_wait_for((I915_READ(EDP_PSR_STATUS_CTL) &
if (_wait_for((I915_READ(EDP_PSR_STATUS_CTL(dev)) &
EDP_PSR_STATUS_STATE_MASK) == 0, 2000, 10))
DRM_ERROR("Timed out waiting for PSR Idle State\n");
}