[PATCH v3 06/19] drm/i915/xe2hpd: Add new C20 PHY SRAM address
Radhakrishna Sripada
radhakrishna.sripada at intel.com
Tue Apr 30 17:28:37 UTC 2024
From: Balasubramani Vivekanandan <balasubramani.vivekanandan at intel.com>
Xe2_HPD has different offsets for C20 PHY SRAM configuration context
location. Use the display version to select the right address.
Note that Xe2_LPD uses the same C20 SRAM offsets used by Xe_LPDP (i.e.
MTL's display). According to the BSpec, currently, only Xe2_HPD has
different offsets, so make sure it is the only display using them in the
driver.
v2:
* Redesigned how the right offsets are selected for different display
IP versions.
v3: Fix white space error(RK)
Bspec: 67610
Cc: Clint Taylor <Clinton.A.Taylor at intel.com>
Cc: Gustavo Sousa <gustavo.sousa at intel.com>
Cc: Jani Nikula <jani.nikula at linux.intel.com>
Signed-off-by: Balasubramani Vivekanandan <balasubramani.vivekanandan at intel.com>
Signed-off-by: Lucas De Marchi <lucas.demarchi at intel.com>
Signed-off-by: Radhakrishna Sripada <radhakrishna.sripada at intel.com>
---
drivers/gpu/drm/i915/display/intel_cx0_phy.c | 65 ++++++++++++-------
.../gpu/drm/i915/display/intel_cx0_phy_regs.h | 48 +++++++++++---
2 files changed, 81 insertions(+), 32 deletions(-)
diff --git a/drivers/gpu/drm/i915/display/intel_cx0_phy.c b/drivers/gpu/drm/i915/display/intel_cx0_phy.c
index 2fee024d642b..866b943311f1 100644
--- a/drivers/gpu/drm/i915/display/intel_cx0_phy.c
+++ b/drivers/gpu/drm/i915/display/intel_cx0_phy.c
@@ -2161,6 +2161,7 @@ static void intel_c20pll_readout_hw_state(struct intel_encoder *encoder,
bool cntx;
intel_wakeref_t wakeref;
int i;
+ struct drm_i915_private *i915 = to_i915(encoder->base.dev);
wakeref = intel_cx0_phy_transaction_begin(encoder);
@@ -2170,42 +2171,50 @@ static void intel_c20pll_readout_hw_state(struct intel_encoder *encoder,
/* Read Tx configuration */
for (i = 0; i < ARRAY_SIZE(pll_state->tx); i++) {
if (cntx)
- pll_state->tx[i] = intel_c20_sram_read(encoder, INTEL_CX0_LANE0,
- PHY_C20_B_TX_CNTX_CFG(i));
+ pll_state->tx[i] = intel_c20_sram_read(encoder,
+ INTEL_CX0_LANE0,
+ PHY_C20_B_TX_CNTX_CFG(i915, i));
else
- pll_state->tx[i] = intel_c20_sram_read(encoder, INTEL_CX0_LANE0,
- PHY_C20_A_TX_CNTX_CFG(i));
+ pll_state->tx[i] = intel_c20_sram_read(encoder,
+ INTEL_CX0_LANE0,
+ PHY_C20_A_TX_CNTX_CFG(i915, i));
}
/* Read common configuration */
for (i = 0; i < ARRAY_SIZE(pll_state->cmn); i++) {
if (cntx)
- pll_state->cmn[i] = intel_c20_sram_read(encoder, INTEL_CX0_LANE0,
- PHY_C20_B_CMN_CNTX_CFG(i));
+ pll_state->cmn[i] = intel_c20_sram_read(encoder,
+ INTEL_CX0_LANE0,
+ PHY_C20_B_CMN_CNTX_CFG(i915, i));
else
- pll_state->cmn[i] = intel_c20_sram_read(encoder, INTEL_CX0_LANE0,
- PHY_C20_A_CMN_CNTX_CFG(i));
+ pll_state->cmn[i] = intel_c20_sram_read(encoder,
+ INTEL_CX0_LANE0,
+ PHY_C20_A_CMN_CNTX_CFG(i915, i));
}
if (intel_c20phy_use_mpllb(pll_state)) {
/* MPLLB configuration */
for (i = 0; i < ARRAY_SIZE(pll_state->mpllb); i++) {
if (cntx)
- pll_state->mpllb[i] = intel_c20_sram_read(encoder, INTEL_CX0_LANE0,
- PHY_C20_B_MPLLB_CNTX_CFG(i));
+ pll_state->mpllb[i] = intel_c20_sram_read(encoder,
+ INTEL_CX0_LANE0,
+ PHY_C20_B_MPLLB_CNTX_CFG(i915, i));
else
- pll_state->mpllb[i] = intel_c20_sram_read(encoder, INTEL_CX0_LANE0,
- PHY_C20_A_MPLLB_CNTX_CFG(i));
+ pll_state->mpllb[i] = intel_c20_sram_read(encoder,
+ INTEL_CX0_LANE0,
+ PHY_C20_A_MPLLB_CNTX_CFG(i915, i));
}
} else {
/* MPLLA configuration */
for (i = 0; i < ARRAY_SIZE(pll_state->mplla); i++) {
if (cntx)
- pll_state->mplla[i] = intel_c20_sram_read(encoder, INTEL_CX0_LANE0,
- PHY_C20_B_MPLLA_CNTX_CFG(i));
+ pll_state->mplla[i] = intel_c20_sram_read(encoder,
+ INTEL_CX0_LANE0,
+ PHY_C20_B_MPLLA_CNTX_CFG(i915, i));
else
- pll_state->mplla[i] = intel_c20_sram_read(encoder, INTEL_CX0_LANE0,
- PHY_C20_A_MPLLA_CNTX_CFG(i));
+ pll_state->mplla[i] = intel_c20_sram_read(encoder,
+ INTEL_CX0_LANE0,
+ PHY_C20_A_MPLLA_CNTX_CFG(i915, i));
}
}
@@ -2363,17 +2372,25 @@ static void intel_c20_pll_program(struct drm_i915_private *i915,
/* 3.1 Tx configuration */
for (i = 0; i < ARRAY_SIZE(pll_state->tx); i++) {
if (cntx)
- intel_c20_sram_write(encoder, INTEL_CX0_LANE0, PHY_C20_A_TX_CNTX_CFG(i), pll_state->tx[i]);
+ intel_c20_sram_write(encoder, INTEL_CX0_LANE0,
+ PHY_C20_A_TX_CNTX_CFG(i915, i),
+ pll_state->tx[i]);
else
- intel_c20_sram_write(encoder, INTEL_CX0_LANE0, PHY_C20_B_TX_CNTX_CFG(i), pll_state->tx[i]);
+ intel_c20_sram_write(encoder, INTEL_CX0_LANE0,
+ PHY_C20_B_TX_CNTX_CFG(i915, i),
+ pll_state->tx[i]);
}
/* 3.2 common configuration */
for (i = 0; i < ARRAY_SIZE(pll_state->cmn); i++) {
if (cntx)
- intel_c20_sram_write(encoder, INTEL_CX0_LANE0, PHY_C20_A_CMN_CNTX_CFG(i), pll_state->cmn[i]);
+ intel_c20_sram_write(encoder, INTEL_CX0_LANE0,
+ PHY_C20_A_CMN_CNTX_CFG(i915, i),
+ pll_state->cmn[i]);
else
- intel_c20_sram_write(encoder, INTEL_CX0_LANE0, PHY_C20_B_CMN_CNTX_CFG(i), pll_state->cmn[i]);
+ intel_c20_sram_write(encoder, INTEL_CX0_LANE0,
+ PHY_C20_B_CMN_CNTX_CFG(i915, i),
+ pll_state->cmn[i]);
}
/* 3.3 mpllb or mplla configuration */
@@ -2381,22 +2398,22 @@ static void intel_c20_pll_program(struct drm_i915_private *i915,
for (i = 0; i < ARRAY_SIZE(pll_state->mpllb); i++) {
if (cntx)
intel_c20_sram_write(encoder, INTEL_CX0_LANE0,
- PHY_C20_A_MPLLB_CNTX_CFG(i),
+ PHY_C20_A_MPLLB_CNTX_CFG(i915, i),
pll_state->mpllb[i]);
else
intel_c20_sram_write(encoder, INTEL_CX0_LANE0,
- PHY_C20_B_MPLLB_CNTX_CFG(i),
+ PHY_C20_B_MPLLB_CNTX_CFG(i915, i),
pll_state->mpllb[i]);
}
} else {
for (i = 0; i < ARRAY_SIZE(pll_state->mplla); i++) {
if (cntx)
intel_c20_sram_write(encoder, INTEL_CX0_LANE0,
- PHY_C20_A_MPLLA_CNTX_CFG(i),
+ PHY_C20_A_MPLLA_CNTX_CFG(i915, i),
pll_state->mplla[i]);
else
intel_c20_sram_write(encoder, INTEL_CX0_LANE0,
- PHY_C20_B_MPLLA_CNTX_CFG(i),
+ PHY_C20_B_MPLLA_CNTX_CFG(i915, i),
pll_state->mplla[i]);
}
}
diff --git a/drivers/gpu/drm/i915/display/intel_cx0_phy_regs.h b/drivers/gpu/drm/i915/display/intel_cx0_phy_regs.h
index bdd0c8c4ef97..ab3ae110b68f 100644
--- a/drivers/gpu/drm/i915/display/intel_cx0_phy_regs.h
+++ b/drivers/gpu/drm/i915/display/intel_cx0_phy_regs.h
@@ -254,18 +254,50 @@
#define PHY_C20_VDR_CUSTOM_WIDTH 0xD02
#define PHY_C20_CUSTOM_WIDTH_MASK REG_GENMASK(1, 0)
#define PHY_C20_CUSTOM_WIDTH(val) REG_FIELD_PREP8(PHY_C20_CUSTOM_WIDTH_MASK, val)
-#define PHY_C20_A_TX_CNTX_CFG(idx) (0xCF2E - (idx))
-#define PHY_C20_B_TX_CNTX_CFG(idx) (0xCF2A - (idx))
+
+#define _MTL_C20_A_TX_CNTX_CFG 0xCF2E
+#define _MTL_C20_B_TX_CNTX_CFG 0xCF2A
+#define _MTL_C20_A_CMN_CNTX_CFG 0xCDAA
+#define _MTL_C20_B_CMN_CNTX_CFG 0xCDA5
+#define _MTL_C20_A_MPLLA_CFG 0xCCF0
+#define _MTL_C20_B_MPLLA_CFG 0xCCE5
+#define _MTL_C20_A_MPLLB_CFG 0xCB5A
+#define _MTL_C20_B_MPLLB_CFG 0xCB4E
+
+#define _XE2HPD_C20_A_TX_CNTX_CFG 0xCF5E
+#define _XE2HPD_C20_B_TX_CNTX_CFG 0xCF5A
+#define _XE2HPD_C20_A_CMN_CNTX_CFG 0xCE8E
+#define _XE2HPD_C20_B_CMN_CNTX_CFG 0xCE89
+#define _XE2HPD_C20_A_MPLLA_CFG 0xCE58
+#define _XE2HPD_C20_B_MPLLA_CFG 0xCE4D
+#define _XE2HPD_C20_A_MPLLB_CFG 0xCCC2
+#define _XE2HPD_C20_B_MPLLB_CFG 0xCCB6
+
+#define _IS_XE2HPD_C20(i915) (DISPLAY_VER_FULL(i915) == IP_VER(14, 1))
+
+#define PHY_C20_A_TX_CNTX_CFG(i915, idx) \
+ ((_IS_XE2HPD_C20(i915) ? _XE2HPD_C20_A_TX_CNTX_CFG : _MTL_C20_A_TX_CNTX_CFG) - (idx))
+#define PHY_C20_B_TX_CNTX_CFG(i915, idx) \
+ ((_IS_XE2HPD_C20(i915) ? _XE2HPD_C20_B_TX_CNTX_CFG : _MTL_C20_B_TX_CNTX_CFG) - (idx))
#define C20_PHY_TX_RATE REG_GENMASK(2, 0)
-#define PHY_C20_A_CMN_CNTX_CFG(idx) (0xCDAA - (idx))
-#define PHY_C20_B_CMN_CNTX_CFG(idx) (0xCDA5 - (idx))
-#define PHY_C20_A_MPLLA_CNTX_CFG(idx) (0xCCF0 - (idx))
-#define PHY_C20_B_MPLLA_CNTX_CFG(idx) (0xCCE5 - (idx))
+
+#define PHY_C20_A_CMN_CNTX_CFG(i915, idx) \
+ ((_IS_XE2HPD_C20(i915) ? _XE2HPD_C20_A_CMN_CNTX_CFG : _MTL_C20_A_CMN_CNTX_CFG) - (idx))
+#define PHY_C20_B_CMN_CNTX_CFG(i915, idx) \
+ ((_IS_XE2HPD_C20(i915) ? _XE2HPD_C20_B_CMN_CNTX_CFG : _MTL_C20_B_CMN_CNTX_CFG) - (idx))
+#define PHY_C20_A_MPLLA_CNTX_CFG(i915, idx) \
+ ((_IS_XE2HPD_C20(i915) ? _XE2HPD_C20_A_MPLLA_CFG : _MTL_C20_A_MPLLA_CFG) - (idx))
+#define PHY_C20_B_MPLLA_CNTX_CFG(i915, idx) \
+ ((_IS_XE2HPD_C20(i915) ? _XE2HPD_C20_B_MPLLA_CFG : _MTL_C20_B_MPLLA_CFG) - (idx))
#define C20_MPLLA_FRACEN REG_BIT(14)
#define C20_FB_CLK_DIV4_EN REG_BIT(13)
#define C20_MPLLA_TX_CLK_DIV_MASK REG_GENMASK(10, 8)
-#define PHY_C20_A_MPLLB_CNTX_CFG(idx) (0xCB5A - (idx))
-#define PHY_C20_B_MPLLB_CNTX_CFG(idx) (0xCB4E - (idx))
+
+#define PHY_C20_A_MPLLB_CNTX_CFG(i915, idx) \
+ ((_IS_XE2HPD_C20(i915) ? _XE2HPD_C20_A_MPLLB_CFG : _MTL_C20_A_MPLLB_CFG) - (idx))
+#define PHY_C20_B_MPLLB_CNTX_CFG(i915, idx) \
+ ((_IS_XE2HPD_C20(i915) ? _XE2HPD_C20_B_MPLLB_CFG : _MTL_C20_B_MPLLB_CFG) - (idx))
+
#define C20_MPLLB_TX_CLK_DIV_MASK REG_GENMASK(15, 13)
#define C20_MPLLB_FRACEN REG_BIT(13)
#define C20_REF_CLK_MPLLB_DIV_MASK REG_GENMASK(12, 10)
--
2.34.1
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