[Intel-gfx] [PATCH] drm/i915/tgl: Fix stepping WA matching
José Roberto de Souza
jose.souza at intel.com
Wed Aug 19 20:33:02 UTC 2020
TGL made stepping a litte mess, workarounds refer to the stepping of
the IP(GT or Display) not of the GPU stepping so it would already
require the same solution as used in commit 96c5a15f9f39
("drm/i915/kbl: Fix revision ID checks").
But to make things even more messy it have a different IP stepping
mapping between SKUs and the same stepping revision of GT do not match
the same HW between TGL U/Y and regular TGL.
So it was required to have 2 different macros to check GT WAs while
for Display we are able to use just one macro that uses the right
revids table.
All TGL workarounds checked and updated accordingly.
BSpec: 52890
BSpec: 55378
BSpec: 44455
Cc: Penne Lee <penne.y.lee at intel.com>
Cc: Guangyao Bai <guangyao.bai at intel.com>
Cc: Matt Roper <matthew.d.roper at intel.com>
Signed-off-by: José Roberto de Souza <jose.souza at intel.com>
---
.../drm/i915/display/intel_display_power.c | 2 +-
drivers/gpu/drm/i915/display/intel_psr.c | 4 +-
drivers/gpu/drm/i915/display/intel_sprite.c | 2 +-
drivers/gpu/drm/i915/gt/intel_workarounds.c | 24 ++++++++++--
drivers/gpu/drm/i915/i915_drv.h | 39 ++++++++++++++++---
drivers/gpu/drm/i915/intel_pm.c | 2 +-
6 files changed, 59 insertions(+), 14 deletions(-)
diff --git a/drivers/gpu/drm/i915/display/intel_display_power.c b/drivers/gpu/drm/i915/display/intel_display_power.c
index 7946c6af4b1e..7277e58b01f1 100644
--- a/drivers/gpu/drm/i915/display/intel_display_power.c
+++ b/drivers/gpu/drm/i915/display/intel_display_power.c
@@ -5263,7 +5263,7 @@ static void tgl_bw_buddy_init(struct drm_i915_private *dev_priv)
unsigned long abox_mask = INTEL_INFO(dev_priv)->abox_mask;
int config, i;
- if (IS_TGL_REVID(dev_priv, TGL_REVID_A0, TGL_REVID_B0))
+ if (IS_TGL_DISP_REVID(dev_priv, TGL_REVID_A0, TGL_REVID_B0))
/* Wa_1409767108: tgl */
table = wa_1409767108_buddy_page_masks;
else
diff --git a/drivers/gpu/drm/i915/display/intel_psr.c b/drivers/gpu/drm/i915/display/intel_psr.c
index 2b004ee9619c..8a9d0bdde1bf 100644
--- a/drivers/gpu/drm/i915/display/intel_psr.c
+++ b/drivers/gpu/drm/i915/display/intel_psr.c
@@ -555,7 +555,7 @@ static void hsw_activate_psr2(struct intel_dp *intel_dp)
if (dev_priv->psr.psr2_sel_fetch_enabled) {
/* WA 1408330847 */
- if (IS_TGL_REVID(dev_priv, TGL_REVID_A0, TGL_REVID_A0) ||
+ if (IS_TGL_DISP_REVID(dev_priv, TGL_REVID_A0, TGL_REVID_A0) ||
IS_RKL_REVID(dev_priv, RKL_REVID_A0, RKL_REVID_A0))
intel_de_rmw(dev_priv, CHICKEN_PAR1_1,
DIS_RAM_BYPASS_PSR2_MAN_TRACK,
@@ -1109,7 +1109,7 @@ static void intel_psr_disable_locked(struct intel_dp *intel_dp)
/* WA 1408330847 */
if (dev_priv->psr.psr2_sel_fetch_enabled &&
- (IS_TGL_REVID(dev_priv, TGL_REVID_A0, TGL_REVID_A0) ||
+ (IS_TGL_DISP_REVID(dev_priv, TGL_REVID_A0, TGL_REVID_A0) ||
IS_RKL_REVID(dev_priv, RKL_REVID_A0, RKL_REVID_A0)))
intel_de_rmw(dev_priv, CHICKEN_PAR1_1,
DIS_RAM_BYPASS_PSR2_MAN_TRACK, 0);
diff --git a/drivers/gpu/drm/i915/display/intel_sprite.c b/drivers/gpu/drm/i915/display/intel_sprite.c
index c26ca029fc0a..1797a06cfd60 100644
--- a/drivers/gpu/drm/i915/display/intel_sprite.c
+++ b/drivers/gpu/drm/i915/display/intel_sprite.c
@@ -2845,7 +2845,7 @@ static bool gen12_plane_supports_mc_ccs(struct drm_i915_private *dev_priv,
{
/* Wa_14010477008:tgl[a0..c0],rkl[all] */
if (IS_ROCKETLAKE(dev_priv) ||
- IS_TGL_REVID(dev_priv, TGL_REVID_A0, TGL_REVID_C0))
+ IS_TGL_DISP_REVID(dev_priv, TGL_REVID_A0, TGL_REVID_C0))
return false;
return plane_id < PLANE_SPRITE4;
diff --git a/drivers/gpu/drm/i915/gt/intel_workarounds.c b/drivers/gpu/drm/i915/gt/intel_workarounds.c
index be5a4685c991..860d6ae1d866 100644
--- a/drivers/gpu/drm/i915/gt/intel_workarounds.c
+++ b/drivers/gpu/drm/i915/gt/intel_workarounds.c
@@ -70,6 +70,19 @@ const struct i915_rev_steppings kbl_revids[] = {
[7] = { .gt_stepping = KBL_REVID_G0, .disp_stepping = KBL_REVID_C0 },
};
+const struct i915_rev_steppings tgl_uy_revids[] = {
+ [0] = { .gt_stepping = TGL_REVID_A0, .disp_stepping = TGL_REVID_A0 },
+ [1] = { .gt_stepping = TGL_REVID_B0, .disp_stepping = TGL_REVID_C0 },
+ [2] = { .gt_stepping = TGL_REVID_B1, .disp_stepping = TGL_REVID_C0 },
+ [3] = { .gt_stepping = TGL_REVID_C0, .disp_stepping = TGL_REVID_D0 },
+};
+
+/* Same GT stepping between tgl_uy_revids and tgl_revids don't mean the same HW */
+const struct i915_rev_steppings tgl_revids[] = {
+ [0] = { .gt_stepping = TGL_REVID_A0, .disp_stepping = TGL_REVID_A0 },
+ [1] = { .gt_stepping = TGL_REVID_B0, .disp_stepping = TGL_REVID_D0 },
+};
+
static void wa_init_start(struct i915_wa_list *wal, const char *name, const char *engine_name)
{
wal->name = name;
@@ -1219,13 +1232,13 @@ tgl_gt_workarounds_init(struct drm_i915_private *i915, struct i915_wa_list *wal)
gen12_gt_workarounds_init(i915, wal);
/* Wa_1409420604:tgl */
- if (IS_TGL_REVID(i915, TGL_REVID_A0, TGL_REVID_A0))
+ if (IS_TGL_UY_GT_REVID(i915, TGL_REVID_A0, TGL_REVID_A0))
wa_write_or(wal,
SUBSLICE_UNIT_LEVEL_CLKGATE2,
CPSSUNIT_CLKGATE_DIS);
/* Wa_1607087056:tgl also know as BUG:1409180338 */
- if (IS_TGL_REVID(i915, TGL_REVID_A0, TGL_REVID_A0))
+ if (IS_TGL_UY_GT_REVID(i915, TGL_REVID_A0, TGL_REVID_A0))
wa_write_or(wal,
SLICE_UNIT_LEVEL_CLKGATE,
L3_CLKGATE_DIS | L3_CR2X_CLKGATE_DIS);
@@ -1660,7 +1673,7 @@ rcs_engine_wa_init(struct intel_engine_cs *engine, struct i915_wa_list *wal)
{
struct drm_i915_private *i915 = engine->i915;
- if (IS_TGL_REVID(i915, TGL_REVID_A0, TGL_REVID_A0)) {
+ if (IS_TGL_UY_GT_REVID(i915, TGL_REVID_A0, TGL_REVID_A0)) {
/*
* Wa_1607138336:tgl
* Wa_1607063988:tgl
@@ -1697,6 +1710,9 @@ rcs_engine_wa_init(struct intel_engine_cs *engine, struct i915_wa_list *wal)
wa_masked_en(wal, GEN9_ROW_CHICKEN4, GEN12_DISABLE_TDL_PUSH);
/*
+ * TODO: still pending the decision if this WA is permanent for
+ * plain TGL SKU(not TGL-U/Y).
+ *
* Wa_1407928979:tgl A*
* Wa_18011464164:tgl B0+
* Wa_22010931296:tgl B0+
@@ -1718,7 +1734,7 @@ rcs_engine_wa_init(struct intel_engine_cs *engine, struct i915_wa_list *wal)
GEN8_RC_SEMA_IDLE_MSG_DISABLE);
}
- if (IS_TIGERLAKE(i915)) {
+ if (IS_TGL_U(i915) || IS_TGL_Y(i915)) {
/* Wa_1606700617:tgl */
wa_masked_en(wal,
GEN9_CS_DEBUG_MODE1,
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index 8e25dd15a2ec..499eb0a4ad3a 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -1572,12 +1572,41 @@ extern const struct i915_rev_steppings kbl_revids[];
#define IS_EHL_REVID(p, since, until) \
(IS_ELKHARTLAKE(p) && IS_REVID(p, since, until))
-#define TGL_REVID_A0 0x0
-#define TGL_REVID_B0 0x1
-#define TGL_REVID_C0 0x2
+enum {
+ TGL_REVID_A0,
+ TGL_REVID_B0,
+ TGL_REVID_B1,
+ TGL_REVID_C0,
+ TGL_REVID_D0,
+};
+
+extern const struct i915_rev_steppings tgl_uy_revids[];
+extern const struct i915_rev_steppings tgl_revids[];
+
+static inline const struct i915_rev_steppings *
+tgl_revids_get(struct drm_i915_private *dev_priv)
+{
+ if (IS_TGL_U(dev_priv) || IS_TGL_Y(dev_priv))
+ return tgl_uy_revids;
+ else
+ return tgl_revids;
+}
-#define IS_TGL_REVID(p, since, until) \
- (IS_TIGERLAKE(p) && IS_REVID(p, since, until))
+#define IS_TGL_DISP_REVID(p, since, until) \
+ (IS_TIGERLAKE(p) && \
+ tgl_revids_get(p)->disp_stepping >= (since) && \
+ tgl_revids_get(p)->disp_stepping <= (until))
+
+#define IS_TGL_UY_GT_REVID(p, since, until) \
+ ((IS_TGL_U(p) || IS_TGL_Y(p)) && \
+ tgl_uy_revids->gt_stepping >= (since) && \
+ tgl_uy_revids->gt_stepping <= (until))
+
+#define IS_TGL_GT_REVID(p, since, until) \
+ (IS_TIGERLAKE(p) && \
+ !(IS_TGL_U(p) || IS_TGL_Y(p)) && \
+ tgl_revids->gt_stepping >= (since) && \
+ tgl_revids->gt_stepping <= (until))
#define RKL_REVID_A0 0x0
#define RKL_REVID_B0 0x1
diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c
index b4bd19266b8c..34e0d22d456b 100644
--- a/drivers/gpu/drm/i915/intel_pm.c
+++ b/drivers/gpu/drm/i915/intel_pm.c
@@ -7136,7 +7136,7 @@ static void tgl_init_clock_gating(struct drm_i915_private *dev_priv)
I915_READ(POWERGATE_ENABLE) | vd_pg_enable);
/* Wa_1409825376:tgl (pre-prod)*/
- if (IS_TGL_REVID(dev_priv, TGL_REVID_A0, TGL_REVID_A0))
+ if (IS_TGL_DISP_REVID(dev_priv, TGL_REVID_A0, TGL_REVID_B1))
I915_WRITE(GEN9_CLKGATE_DIS_3, I915_READ(GEN9_CLKGATE_DIS_3) |
TGL_VRH_GATING_DIS);
--
2.28.0
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