Although some of our Xe_LPG workarounds were already being applied based
on IP version correctly, others were matching on MTL as a base platform,
which is incorrect. Although MTL is the only platform right now that
uses Xe_LPG IP, this may not always be the case. If a future platform
re-uses this graphics IP, the same workarounds should be applied, even
if it isn't a "MTL" platform.
We were also incorrectly applying Xe_LPG workarounds/tuning to the
Xe_LPM+ media IP in one or two places; we should make sure that we don't
try to apply graphics workarounds to the media GT and vice versa where
they don't belong. A new helper macro IS_GT_IP_RANGE() is added to help
ensure this is handled properly -- it checks that the GT matches the IP
type being tested as well as the IP version falling in the proper range.
Note that many of the stepping-based workarounds are still incorrectly
checking for a MTL base platform; that will be remedied in a later
patch.
v2:
- Rework macro into a slightly more generic IS_GT_IP_RANGE() that can
be used for either GFX or MEDIA checks.
v3:
- Switch back to separate macros for gfx and media. (Jani)
- Move macro to intel_gt.h. (Andi)
Cc: Gustavo Sousa <gustavo.so...@intel.com>
Cc: Tvrtko Ursulin <tvrtko.ursu...@linux.intel.com>
Cc: Jani Nikula <jani.nik...@linux.intel.com>
Cc: Andi Shyti <andi.sh...@linux.intel.com>
Signed-off-by: Matt Roper <matthew.d.ro...@intel.com>
---
drivers/gpu/drm/i915/gt/intel_gt.h | 11 ++++++
drivers/gpu/drm/i915/gt/intel_workarounds.c | 38 +++++++++++----------
2 files changed, 31 insertions(+), 18 deletions(-)
diff --git a/drivers/gpu/drm/i915/gt/intel_gt.h
b/drivers/gpu/drm/i915/gt/intel_gt.h
index 6c34547b58b5..15c25980411d 100644
--- a/drivers/gpu/drm/i915/gt/intel_gt.h
+++ b/drivers/gpu/drm/i915/gt/intel_gt.h
@@ -14,6 +14,17 @@
struct drm_i915_private;
struct drm_printer;
+/*
+ * Check that the GT is a graphics GT and has an IP version within the
+ * specified range (inclusive).
+ */
+#define IS_GFX_GT_IP_RANGE(gt, from, until) ( \
+ BUILD_BUG_ON_ZERO((from) < IP_VER(2, 0)) + \
+ BUILD_BUG_ON_ZERO((until) < (from)) + \
+ ((gt)->type != GT_MEDIA && \
+ GRAPHICS_VER_FULL((gt)->i915) >= (from) && \
+ GRAPHICS_VER_FULL((gt)->i915) <= (until)))
+
#define GT_TRACE(gt, fmt, ...) do { \
const struct intel_gt *gt__ __maybe_unused = (gt); \
GEM_TRACE("%s " fmt, dev_name(gt__->i915->drm.dev), \
diff --git a/drivers/gpu/drm/i915/gt/intel_workarounds.c
b/drivers/gpu/drm/i915/gt/intel_workarounds.c
index 3108ad1d6207..80d67e487b55 100644
--- a/drivers/gpu/drm/i915/gt/intel_workarounds.c
+++ b/drivers/gpu/drm/i915/gt/intel_workarounds.c
@@ -805,8 +805,8 @@ static void dg2_ctx_workarounds_init(struct intel_engine_cs
*engine,
wa_masked_en(wal, CACHE_MODE_1, MSAA_OPTIMIZATION_REDUC_DISABLE);
}
-static void mtl_ctx_gt_tuning_init(struct intel_engine_cs *engine,
- struct i915_wa_list *wal)
+static void xelpg_ctx_gt_tuning_init(struct intel_engine_cs *engine,
+ struct i915_wa_list *wal)
{
struct drm_i915_private *i915 = engine->i915;
@@ -817,12 +817,12 @@ static void mtl_ctx_gt_tuning_init(struct intel_engine_cs
*engine,
wa_add(wal, DRAW_WATERMARK, VERT_WM_VAL, 0x3FF, 0, false);
}
-static void mtl_ctx_workarounds_init(struct intel_engine_cs *engine,
- struct i915_wa_list *wal)
+static void xelpg_ctx_workarounds_init(struct intel_engine_cs *engine,
+ struct i915_wa_list *wal)
{
struct drm_i915_private *i915 = engine->i915;
- mtl_ctx_gt_tuning_init(engine, wal);
+ xelpg_ctx_gt_tuning_init(engine, wal);
if (IS_MTL_GRAPHICS_STEP(i915, M, STEP_A0, STEP_B0) ||
IS_MTL_GRAPHICS_STEP(i915, P, STEP_A0, STEP_B0)) {
@@ -931,8 +931,8 @@ __intel_engine_init_ctx_wa(struct intel_engine_cs *engine,
if (engine->class != RENDER_CLASS)
goto done;
- if (IS_METEORLAKE(i915))
- mtl_ctx_workarounds_init(engine, wal);
+ if (IS_GFX_GT_IP_RANGE(engine->gt, IP_VER(12, 70), IP_VER(12, 71)))
+ xelpg_ctx_workarounds_init(engine, wal);
else if (IS_PONTEVECCHIO(i915))
; /* noop; none at this time */
else if (IS_DG2(i915))
@@ -1791,10 +1791,8 @@ xelpmp_gt_workarounds_init(struct intel_gt *gt, struct
i915_wa_list *wal)
*/
static void gt_tuning_settings(struct intel_gt *gt, struct i915_wa_list *wal)
{
- if (IS_METEORLAKE(gt->i915)) {
- if (gt->type != GT_MEDIA)
- wa_mcr_write_or(wal, XEHP_L3SCQREG7,
BLEND_FILL_CACHING_OPT_DIS);
-
+ if (IS_GFX_GT_IP_RANGE(gt, IP_VER(12, 70), IP_VER(12, 71))) {
+ wa_mcr_write_or(wal, XEHP_L3SCQREG7,
BLEND_FILL_CACHING_OPT_DIS);
wa_mcr_write_or(wal, XEHP_SQCM, EN_32B_ACCESS);
}
@@ -1826,7 +1824,7 @@ gt_init_workarounds(struct intel_gt *gt, struct
i915_wa_list *wal)
return;
}
- if (GRAPHICS_VER_FULL(i915) >= IP_VER(12, 70))
+ if (IS_GFX_GT_IP_RANGE(gt, IP_VER(12, 70), IP_VER(12, 71)))
xelpg_gt_workarounds_init(gt, wal);
else if (IS_PONTEVECCHIO(i915))
pvc_gt_workarounds_init(gt, wal);
@@ -2294,7 +2292,7 @@ static void pvc_whitelist_build(struct intel_engine_cs
*engine)
blacklist_trtt(engine);
}
-static void mtl_whitelist_build(struct intel_engine_cs *engine)
+static void xelpg_whitelist_build(struct intel_engine_cs *engine)
{
struct i915_wa_list *w = &engine->whitelist;
@@ -2316,8 +2314,10 @@ void intel_engine_init_whitelist(struct intel_engine_cs
*engine)
wa_init_start(w, engine->gt, "whitelist", engine->name);
- if (IS_METEORLAKE(i915))
- mtl_whitelist_build(engine);
+ if (engine->gt->type == GT_MEDIA)
+ ; /* none yet */
+ else if (IS_GFX_GT_IP_RANGE(engine->gt, IP_VER(12, 70), IP_VER(12, 71)))
+ xelpg_whitelist_build(engine);
else if (IS_PONTEVECCHIO(i915))
pvc_whitelist_build(engine);
else if (IS_DG2(i915))
@@ -2975,10 +2975,12 @@ ccs_engine_wa_init(struct intel_engine_cs *engine,
struct i915_wa_list *wal)
* function invoked by __intel_engine_init_ctx_wa().
*/
static void
-add_render_compute_tuning_settings(struct drm_i915_private *i915,
+add_render_compute_tuning_settings(struct intel_gt *gt,
struct i915_wa_list *wal)
{
- if (IS_METEORLAKE(i915) || IS_DG2(i915))
+ struct drm_i915_private *i915 = gt->i915;
+
+ if (IS_GFX_GT_IP_RANGE(gt, IP_VER(12, 70), IP_VER(12, 71)) ||
IS_DG2(i915))
wa_mcr_write_clr_set(wal, RT_CTRL, STACKID_CTRL,
STACKID_CTRL_512);
/*
@@ -3008,7 +3010,7 @@ general_render_compute_wa_init(struct intel_engine_cs
*engine, struct i915_wa_li
{
struct drm_i915_private *i915 = engine->i915;
- add_render_compute_tuning_settings(i915, wal);
+ add_render_compute_tuning_settings(engine->gt, wal);
if (GRAPHICS_VER(i915) >= 11) {
/* This is not a Wa (although referred to as
--
2.41.0
