From 1a8a96d07fcbf8015c1d34a862f23bfe8cb55b52 Mon Sep 17 00:00:00 2001
From: Stanislav Lisovskiy <stanislav.lisovskiy@intel.com>
Date: Mon, 3 Feb 2020 01:06:28 +0200
Subject: drm/i915: Introduce parameterized DBUF_CTL
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Git-commit: 2570b7e3c56197e42c51d2df1ade511c3ff18190
Patch-mainline: v5.7-rc1
References: jsc#SLE-12680, jsc#SLE-12880, jsc#SLE-12882, jsc#SLE-12883, jsc#SLE-13496, jsc#SLE-15322
Now start using parameterized DBUF_CTL instead
of hardcoded, this would allow shorter access
functions when reading or storing entire state.
Tried to implement it in a MMIO_PIPE manner, however
DBUF_CTL1 address is higher than DBUF_CTL2, which
implies that we have to now subtract from base
rather than add.
v2: - Removed unneeded DBUF_CTL_DIST and DBUF_CTL_ADDR
macros. Started to use _PICK construct as suggested
by Matt Roper.
v3: - _DBUF_CTL_S* to DBUF_CTL_S*, changed X to "slice"
in macro(Ville Syrjälä)
- Introduced enum for enumerating DBUF slices(Ville Syrjälä)
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Matt Roper <matthew.d.roper@intel.com>
Signed-off-by: Stanislav Lisovskiy <stanislav.lisovskiy@intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200202230630.8975-5-stanislav.lisovskiy@intel.com
Signed-off-by: Patrik Jakobsson <pjakobsson@suse.de>
---
.../drm/i915/display/intel_display_power.c | 40 ++++++++++---------
.../drm/i915/display/intel_display_power.h | 5 +++
drivers/gpu/drm/i915/gvt/handlers.c | 2 +-
drivers/gpu/drm/i915/i915_reg.h | 6 +--
drivers/gpu/drm/i915/intel_pm.c | 2 +-
5 files changed, 31 insertions(+), 24 deletions(-)
diff --git a/drivers/gpu/drm/i915/display/intel_display_power.c b/drivers/gpu/drm/i915/display/intel_display_power.c
index d88d804068ed..f5313fd7c527 100644
--- a/drivers/gpu/drm/i915/display/intel_display_power.c
+++ b/drivers/gpu/drm/i915/display/intel_display_power.c
@@ -1041,7 +1041,7 @@ static bool gen9_dc_off_power_well_enabled(struct drm_i915_private *dev_priv,
static void gen9_assert_dbuf_enabled(struct drm_i915_private *dev_priv)
{
- u32 tmp = intel_de_read(dev_priv, DBUF_CTL);
+ u32 tmp = intel_de_read(dev_priv, DBUF_CTL_S(0));
WARN((tmp & (DBUF_POWER_STATE | DBUF_POWER_REQUEST)) !=
(DBUF_POWER_STATE | DBUF_POWER_REQUEST),
@@ -4425,12 +4425,12 @@ bool intel_dbuf_slice_set(struct drm_i915_private *dev_priv,
static void gen9_dbuf_enable(struct drm_i915_private *dev_priv)
{
- intel_dbuf_slice_set(dev_priv, DBUF_CTL, true);
+ intel_dbuf_slice_set(dev_priv, DBUF_CTL_S(0), true);
}
static void gen9_dbuf_disable(struct drm_i915_private *dev_priv)
{
- intel_dbuf_slice_set(dev_priv, DBUF_CTL, false);
+ intel_dbuf_slice_set(dev_priv, DBUF_CTL_S(0), false);
}
static u8 intel_dbuf_max_slices(struct drm_i915_private *dev_priv)
@@ -4456,9 +4456,11 @@ void icl_dbuf_slices_update(struct drm_i915_private *dev_priv,
return;
if (req_slices > hw_enabled_slices)
- ret = intel_dbuf_slice_set(dev_priv, DBUF_CTL_S2, true);
+ ret = intel_dbuf_slice_set(dev_priv,
+ DBUF_CTL_S(DBUF_S2), true);
else
- ret = intel_dbuf_slice_set(dev_priv, DBUF_CTL_S2, false);
+ ret = intel_dbuf_slice_set(dev_priv,
+ DBUF_CTL_S(DBUF_S2), false);
if (ret)
dev_priv->enabled_dbuf_slices_num = req_slices;
@@ -4466,16 +4468,16 @@ void icl_dbuf_slices_update(struct drm_i915_private *dev_priv,
static void icl_dbuf_enable(struct drm_i915_private *dev_priv)
{
- intel_de_write(dev_priv, DBUF_CTL_S1,
- intel_de_read(dev_priv, DBUF_CTL_S1) | DBUF_POWER_REQUEST);
- intel_de_write(dev_priv, DBUF_CTL_S2,
- intel_de_read(dev_priv, DBUF_CTL_S2) | DBUF_POWER_REQUEST);
- intel_de_posting_read(dev_priv, DBUF_CTL_S2);
+ intel_de_write(dev_priv, DBUF_CTL_S(0),
+ intel_de_read(dev_priv, DBUF_CTL_S(0)) | DBUF_POWER_REQUEST);
+ intel_de_write(dev_priv, DBUF_CTL_S(1),
+ intel_de_read(dev_priv, DBUF_CTL_S(1)) | DBUF_POWER_REQUEST);
+ intel_de_posting_read(dev_priv, DBUF_CTL_S(1));
udelay(10);
- if (!(intel_de_read(dev_priv, DBUF_CTL_S1) & DBUF_POWER_STATE) ||
- !(intel_de_read(dev_priv, DBUF_CTL_S2) & DBUF_POWER_STATE))
+ if (!(intel_de_read(dev_priv, DBUF_CTL_S(0)) & DBUF_POWER_STATE) ||
+ !(intel_de_read(dev_priv, DBUF_CTL_S(1)) & DBUF_POWER_STATE))
drm_err(&dev_priv->drm, "DBuf power enable timeout\n");
else
/*
@@ -4487,16 +4489,16 @@ static void icl_dbuf_enable(struct drm_i915_private *dev_priv)
static void icl_dbuf_disable(struct drm_i915_private *dev_priv)
{
- intel_de_write(dev_priv, DBUF_CTL_S1,
- intel_de_read(dev_priv, DBUF_CTL_S1) & ~DBUF_POWER_REQUEST);
- intel_de_write(dev_priv, DBUF_CTL_S2,
- intel_de_read(dev_priv, DBUF_CTL_S2) & ~DBUF_POWER_REQUEST);
- intel_de_posting_read(dev_priv, DBUF_CTL_S2);
+ intel_de_write(dev_priv, DBUF_CTL_S(0),
+ intel_de_read(dev_priv, DBUF_CTL_S(0)) & ~DBUF_POWER_REQUEST);
+ intel_de_write(dev_priv, DBUF_CTL_S(1),
+ intel_de_read(dev_priv, DBUF_CTL_S(1)) & ~DBUF_POWER_REQUEST);
+ intel_de_posting_read(dev_priv, DBUF_CTL_S(1));
udelay(10);
- if ((intel_de_read(dev_priv, DBUF_CTL_S1) & DBUF_POWER_STATE) ||
- (intel_de_read(dev_priv, DBUF_CTL_S2) & DBUF_POWER_STATE))
+ if ((intel_de_read(dev_priv, DBUF_CTL_S(0)) & DBUF_POWER_STATE) ||
+ (intel_de_read(dev_priv, DBUF_CTL_S(1)) & DBUF_POWER_STATE))
drm_err(&dev_priv->drm, "DBuf power disable timeout!\n");
else
/*
diff --git a/drivers/gpu/drm/i915/display/intel_display_power.h b/drivers/gpu/drm/i915/display/intel_display_power.h
index 2608a65af7fa..601e000ffd0d 100644
--- a/drivers/gpu/drm/i915/display/intel_display_power.h
+++ b/drivers/gpu/drm/i915/display/intel_display_power.h
@@ -307,6 +307,11 @@ intel_display_power_put_async(struct drm_i915_private *i915,
}
#endif
+enum dbuf_slice {
+ DBUF_S1,
+ DBUF_S2,
+};
+
#define with_intel_display_power(i915, domain, wf) \
for ((wf) = intel_display_power_get((i915), (domain)); (wf); \
intel_display_power_put_async((i915), (domain), (wf)), (wf) = 0)
diff --git a/drivers/gpu/drm/i915/gvt/handlers.c b/drivers/gpu/drm/i915/gvt/handlers.c
index 18475dd377ed..ae6700dc9d73 100644
--- a/drivers/gpu/drm/i915/gvt/handlers.c
+++ b/drivers/gpu/drm/i915/gvt/handlers.c
@@ -2902,7 +2902,7 @@ static int init_skl_mmio_info(struct intel_gvt *gvt)
MMIO_D(HSW_PWR_WELL_CTL1, D_SKL_PLUS);
MMIO_DH(HSW_PWR_WELL_CTL2, D_SKL_PLUS, NULL, skl_power_well_ctl_write);
- MMIO_DH(DBUF_CTL, D_SKL_PLUS, NULL, gen9_dbuf_ctl_mmio_write);
+ MMIO_DH(DBUF_CTL_S(0), D_SKL_PLUS, NULL, gen9_dbuf_ctl_mmio_write);
MMIO_D(GEN9_PG_ENABLE, D_SKL_PLUS);
MMIO_D(GEN9_MEDIA_PG_IDLE_HYSTERESIS, D_SKL_PLUS);
diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
index 364d7001f15c..3a0d0d74e6a2 100644
--- a/drivers/gpu/drm/i915/i915_reg.h
+++ b/drivers/gpu/drm/i915/i915_reg.h
@@ -7753,9 +7753,9 @@ enum {
#define DISP_ARB_CTL2 _MMIO(0x45004)
#define DISP_DATA_PARTITION_5_6 (1 << 6)
#define DISP_IPC_ENABLE (1 << 3)
-#define DBUF_CTL _MMIO(0x45008)
-#define DBUF_CTL_S1 _MMIO(0x45008)
-#define DBUF_CTL_S2 _MMIO(0x44FE8)
+#define _DBUF_CTL_S1 0x45008
+#define _DBUF_CTL_S2 0x44FE8
+#define DBUF_CTL_S(slice) _MMIO(_PICK_EVEN(slice, _DBUF_CTL_S1, _DBUF_CTL_S2))
#define DBUF_POWER_REQUEST (1 << 31)
#define DBUF_POWER_STATE (1 << 30)
#define GEN7_MSG_CTL _MMIO(0x45010)
diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c
index 89aa188c8cf5..f9e00ca61302 100644
--- a/drivers/gpu/drm/i915/intel_pm.c
+++ b/drivers/gpu/drm/i915/intel_pm.c
@@ -3613,7 +3613,7 @@ u8 intel_enabled_dbuf_slices_num(struct drm_i915_private *dev_priv)
* only that 1 slice enabled until we have a proper way for on-demand
* toggling of the second slice.
*/
- if (0 && I915_READ(DBUF_CTL_S2) & DBUF_POWER_STATE)
+ if (0 && I915_READ(DBUF_CTL_S(DBUF_S2)) & DBUF_POWER_STATE)
enabled_dbuf_slices_num++;
return enabled_dbuf_slices_num;
--
2.28.0