Since we allocate a few CRTC states on the stack, also switch the 'wm'
struct here to be a union so that we're not wasting stack space with
other platforms' watermark values.
v2: Don't move cxsr_allowed to state (Maarten)
Signed-off-by: Matt Roper <matthew.d.roper@xxxxxxxxx>
---
drivers/gpu/drm/i915/intel_drv.h | 45 +++++++++++++++++++++++-----------------
drivers/gpu/drm/i915/intel_pm.c | 30 ++++++++++++++++-----------
2 files changed, 44 insertions(+), 31 deletions(-)
diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h
index 65f0171..dfbfba9 100644
--- a/drivers/gpu/drm/i915/intel_drv.h
+++ b/drivers/gpu/drm/i915/intel_drv.h
@@ -323,6 +323,21 @@ struct intel_crtc_scaler_state {
/* drm_mode->private_flags */
#define I915_MODE_FLAG_INHERITED 1
+struct intel_pipe_wm {
+ struct intel_wm_level wm[5];
+ uint32_t linetime;
+ bool fbc_wm_enabled;
+ bool pipe_enabled;
+ bool sprites_enabled;
+ bool sprites_scaled;
+};
+
+struct skl_pipe_wm {
+ struct skl_wm_level wm[8];
+ struct skl_wm_level trans_wm;
+ uint32_t linetime;
+};
+
struct intel_crtc_state {
struct drm_crtc_state base;
@@ -458,6 +473,17 @@ struct intel_crtc_state {
/* IVB sprite scaling w/a (WaCxSRDisabledForSpriteScaling:ivb) */
bool disable_lp_wm;
+
+ struct {
+ /*
+ * final watermarks, programmed post-vblank when this state
+ * is committed
+ */
+ union {
+ struct intel_pipe_wm ilk;
+ struct skl_pipe_wm skl;
+ } active;
+ } wm;
};
struct vlv_wm_state {
@@ -469,15 +495,6 @@ struct vlv_wm_state {
bool cxsr;
};
-struct intel_pipe_wm {
- struct intel_wm_level wm[5];
- uint32_t linetime;
- bool fbc_wm_enabled;
- bool pipe_enabled;
- bool sprites_enabled;
- bool sprites_scaled;
-};
-
struct intel_mmio_flip {
struct work_struct work;
struct drm_i915_private *i915;
@@ -485,12 +502,6 @@ struct intel_mmio_flip {
struct intel_crtc *crtc;
};
-struct skl_pipe_wm {
- struct skl_wm_level wm[8];
- struct skl_wm_level trans_wm;
- uint32_t linetime;
-};
-
/*
* Tracking of operations that need to be performed at the beginning/end of an
* atomic commit, outside the atomic section where interrupts are disabled.
@@ -555,10 +566,6 @@ struct intel_crtc {
/* per-pipe watermark state */
struct {
- /* watermarks currently being used */
- struct intel_pipe_wm active;
- /* SKL wm values currently in use */
- struct skl_pipe_wm skl_active;
/* allow CxSR on this pipe */
bool cxsr_allowed;
} wm;
diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c
index 5b79c2f..04fc092 100644
--- a/drivers/gpu/drm/i915/intel_pm.c
+++ b/drivers/gpu/drm/i915/intel_pm.c
@@ -2345,7 +2345,9 @@ static void ilk_compute_wm_config(struct drm_device *dev,
/* Compute the currently _active_ config */
for_each_intel_crtc(dev, intel_crtc) {
- const struct intel_pipe_wm *wm = &intel_crtc->wm.active;
+ const struct intel_crtc_state *cstate =
+ to_intel_crtc_state(intel_crtc->base.state);
+ const struct intel_pipe_wm *wm = &cstate->wm.active.ilk;
if (!wm->pipe_enabled)
continue;
@@ -2442,7 +2444,9 @@ static void ilk_merge_wm_level(struct drm_device *dev,
ret_wm->enable = true;
for_each_intel_crtc(dev, intel_crtc) {
- const struct intel_pipe_wm *active = &intel_crtc->wm.active;
+ const struct intel_crtc_state *cstate =
+ to_intel_crtc_state(intel_crtc->base.state);
+ const struct intel_pipe_wm *active = &cstate->wm.active.ilk;
const struct intel_wm_level *wm = &active->wm[level];
if (!active->pipe_enabled)
@@ -2590,14 +2594,15 @@ static void ilk_compute_wm_results(struct drm_device *dev,
/* LP0 register values */
for_each_intel_crtc(dev, intel_crtc) {
+ const struct intel_crtc_state *cstate =
+ to_intel_crtc_state(intel_crtc->base.state);
enum pipe pipe = intel_crtc->pipe;
- const struct intel_wm_level *r =
- &intel_crtc->wm.active.wm[0];
+ const struct intel_wm_level *r = &cstate->wm.active.ilk.wm[0];
if (WARN_ON(!r->enable))
continue;
- results->wm_linetime[pipe] = intel_crtc->wm.active.linetime;
+ results->wm_linetime[pipe] = cstate->wm.active.ilk.linetime;
results->wm_pipe[pipe] =
(r->pri_val << WM0_PIPE_PLANE_SHIFT) |
@@ -3564,16 +3569,15 @@ static bool skl_update_pipe_wm(struct drm_crtc *crtc,
struct skl_ddb_allocation *ddb, /* out */
struct skl_pipe_wm *pipe_wm /* out */)
{
- struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
struct intel_crtc_state *cstate = to_intel_crtc_state(crtc->state);
skl_allocate_pipe_ddb(crtc, config, cstate, ddb);
skl_compute_pipe_wm(crtc, ddb, cstate, pipe_wm);
- if (!memcmp(&intel_crtc->wm.skl_active, pipe_wm, sizeof(*pipe_wm)))
+ if (!memcmp(&cstate->wm.active.skl, pipe_wm, sizeof(*pipe_wm)))
return false;
- intel_crtc->wm.skl_active = *pipe_wm;
+ cstate->wm.active.skl = *pipe_wm;
return true;
}
@@ -3706,10 +3710,10 @@ static void ilk_update_wm(struct drm_crtc *crtc)
intel_compute_pipe_wm(cstate, &pipe_wm);
- if (!memcmp(&intel_crtc->wm.active, &pipe_wm, sizeof(pipe_wm)))
+ if (!memcmp(&cstate->wm.active.ilk, &pipe_wm, sizeof(pipe_wm)))
return;
- intel_crtc->wm.active = pipe_wm;
+ cstate->wm.active.ilk = pipe_wm;
ilk_program_watermarks(dev_priv);
}
@@ -3764,7 +3768,8 @@ static void skl_pipe_wm_get_hw_state(struct drm_crtc *crtc)
struct drm_i915_private *dev_priv = dev->dev_private;
struct skl_wm_values *hw = &dev_priv->wm.skl_hw;
struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
- struct skl_pipe_wm *active = &intel_crtc->wm.skl_active;
+ struct intel_crtc_state *cstate = to_intel_crtc_state(crtc->state);
+ struct skl_pipe_wm *active = &cstate->wm.active.skl;
enum pipe pipe = intel_crtc->pipe;
int level, i, max_level;
uint32_t temp;
@@ -3827,7 +3832,8 @@ static void ilk_pipe_wm_get_hw_state(struct drm_crtc *crtc)
struct drm_i915_private *dev_priv = dev->dev_private;
struct ilk_wm_values *hw = &dev_priv->wm.hw;
struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
- struct intel_pipe_wm *active = &intel_crtc->wm.active;
+ struct intel_crtc_state *cstate = to_intel_crtc_state(crtc->state);
+ struct intel_pipe_wm *active = &cstate->wm.active.ilk;
enum pipe pipe = intel_crtc->pipe;
static const unsigned int wm0_pipe_reg[] = {
[PIPE_A] = WM0_PIPEA_ILK,
--
2.1.4
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