Commit c746063a authored by José Roberto de Souza's avatar José Roberto de Souza Committed by Rodrigo Vivi

drm/i915: Implement WA 14011294188

Although the WA description targets the platforms it is a workaround
for the affected PCHs, that is why it is being checked.

v2: excluding DG1 fake PCH from WA

BSpec: 52890
BSpec: 53273
BSpec: 52888
Reviewed-by: default avatarMatt Roper <matthew.d.roper@intel.com>
Signed-off-by: default avatarJosé Roberto de Souza <jose.souza@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200727164729.28836-1-jose.souza@intel.comSigned-off-by: default avatarRodrigo Vivi <rodrigo.vivi@intel.com>
parent 90e13292
...@@ -5302,6 +5302,12 @@ static void icl_display_core_init(struct drm_i915_private *dev_priv, ...@@ -5302,6 +5302,12 @@ static void icl_display_core_init(struct drm_i915_private *dev_priv,
gen9_set_dc_state(dev_priv, DC_STATE_DISABLE); gen9_set_dc_state(dev_priv, DC_STATE_DISABLE);
/* Wa_14011294188:ehl,jsl,tgl,rkl */
if (INTEL_PCH_TYPE(dev_priv) >= PCH_JSP &&
INTEL_PCH_TYPE(dev_priv) < PCH_DG1)
intel_de_rmw(dev_priv, SOUTH_DSPCLK_GATE_D, 0,
PCH_DPMGUNIT_CLOCK_GATE_DISABLE);
/* 1. Enable PCH reset handshake. */ /* 1. Enable PCH reset handshake. */
intel_pch_reset_handshake(dev_priv, !HAS_PCH_NOP(dev_priv)); intel_pch_reset_handshake(dev_priv, !HAS_PCH_NOP(dev_priv));
......
...@@ -8730,6 +8730,7 @@ enum { ...@@ -8730,6 +8730,7 @@ enum {
#define PCH_GMBUSUNIT_CLOCK_GATE_DISABLE (1 << 31) #define PCH_GMBUSUNIT_CLOCK_GATE_DISABLE (1 << 31)
#define PCH_DPLUNIT_CLOCK_GATE_DISABLE (1 << 30) #define PCH_DPLUNIT_CLOCK_GATE_DISABLE (1 << 30)
#define PCH_DPLSUNIT_CLOCK_GATE_DISABLE (1 << 29) #define PCH_DPLSUNIT_CLOCK_GATE_DISABLE (1 << 29)
#define PCH_DPMGUNIT_CLOCK_GATE_DISABLE (1 << 15)
#define PCH_CPUNIT_CLOCK_GATE_DISABLE (1 << 14) #define PCH_CPUNIT_CLOCK_GATE_DISABLE (1 << 14)
#define CNP_PWM_CGE_GATING_DISABLE (1 << 13) #define CNP_PWM_CGE_GATING_DISABLE (1 << 13)
#define PCH_LP_PARTITION_LEVEL_DISABLE (1 << 12) #define PCH_LP_PARTITION_LEVEL_DISABLE (1 << 12)
......
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