From: Chris Wilson Date: Fri, 12 Apr 2019 20:24:57 +0000 (+0100) Subject: drm/i915: Teach intel_workarounds to use uncore mmio access X-Git-Tag: microblaze-v5.4-rc1~229^2~29^2~228 X-Git-Url: http://git.monstr.eu/?a=commitdiff_plain;h=5d75dc2b08102d82f50cca21963eb718bc1ea802;p=linux-2.6-microblaze.git drm/i915: Teach intel_workarounds to use uncore mmio access Start weaning ourselves off the implicit I915_WRITE macro madness and start using the explicit intel_uncore mmio access. Signed-off-by: Chris Wilson Cc: Tvrtko Ursulin Cc: Daniele Ceraolo Spurio Cc: Paulo Zanoni Reviewed-by: Daniele Ceraolo Spurio Link: https://patchwork.freedesktop.org/patch/msgid/20190412202458.10653-1-chris@chris-wilson.co.uk --- diff --git a/drivers/gpu/drm/i915/intel_workarounds.c b/drivers/gpu/drm/i915/intel_workarounds.c index c0977036db79..ccaf63679435 100644 --- a/drivers/gpu/drm/i915/intel_workarounds.c +++ b/drivers/gpu/drm/i915/intel_workarounds.c @@ -729,9 +729,9 @@ cfl_gt_workarounds_init(struct drm_i915_private *i915, struct i915_wa_list *wal) } static void -wa_init_mcr(struct drm_i915_private *dev_priv, struct i915_wa_list *wal) +wa_init_mcr(struct drm_i915_private *i915, struct i915_wa_list *wal) { - const struct sseu_dev_info *sseu = &RUNTIME_INFO(dev_priv)->sseu; + const struct sseu_dev_info *sseu = &RUNTIME_INFO(i915)->sseu; u32 mcr_slice_subslice_mask; /* @@ -747,14 +747,15 @@ wa_init_mcr(struct drm_i915_private *dev_priv, struct i915_wa_list *wal) * something more complex that requires checking the range of every * MMIO read). */ - if (INTEL_GEN(dev_priv) >= 10 && + if (INTEL_GEN(i915) >= 10 && is_power_of_2(sseu->slice_mask)) { /* * read FUSE3 for enabled L3 Bank IDs, if L3 Bank matches * enabled subslice, no need to redirect MCR packet */ u32 slice = fls(sseu->slice_mask); - u32 fuse3 = I915_READ(GEN10_MIRROR_FUSE3); + u32 fuse3 = + intel_uncore_read(&i915->uncore, GEN10_MIRROR_FUSE3); u8 ss_mask = sseu->subslice_mask[slice]; u8 enabled_mask = (ss_mask | ss_mask >> @@ -768,7 +769,7 @@ wa_init_mcr(struct drm_i915_private *dev_priv, struct i915_wa_list *wal) WARN_ON((enabled_mask & disabled_mask) != enabled_mask); } - if (INTEL_GEN(dev_priv) >= 11) + if (INTEL_GEN(i915) >= 11) mcr_slice_subslice_mask = GEN11_MCR_SLICE_MASK | GEN11_MCR_SUBSLICE_MASK; else @@ -788,7 +789,7 @@ wa_init_mcr(struct drm_i915_private *dev_priv, struct i915_wa_list *wal) wa_write_masked_or(wal, GEN8_MCR_SELECTOR, mcr_slice_subslice_mask, - intel_calculate_mcr_s_ss_select(dev_priv)); + intel_calculate_mcr_s_ss_select(i915)); } static void @@ -897,15 +898,14 @@ void intel_gt_init_workarounds(struct drm_i915_private *i915) } static enum forcewake_domains -wal_get_fw_for_rmw(struct drm_i915_private *dev_priv, - const struct i915_wa_list *wal) +wal_get_fw_for_rmw(struct intel_uncore *uncore, const struct i915_wa_list *wal) { enum forcewake_domains fw = 0; struct i915_wa *wa; unsigned int i; for (i = 0, wa = wal->list; i < wal->count; i++, wa++) - fw |= intel_uncore_forcewake_for_reg(&dev_priv->uncore, + fw |= intel_uncore_forcewake_for_reg(uncore, wa->reg, FW_REG_READ | FW_REG_WRITE); @@ -914,7 +914,7 @@ wal_get_fw_for_rmw(struct drm_i915_private *dev_priv, } static void -wa_list_apply(struct drm_i915_private *dev_priv, const struct i915_wa_list *wal) +wa_list_apply(struct intel_uncore *uncore, const struct i915_wa_list *wal) { enum forcewake_domains fw; unsigned long flags; @@ -924,27 +924,22 @@ wa_list_apply(struct drm_i915_private *dev_priv, const struct i915_wa_list *wal) if (!wal->count) return; - fw = wal_get_fw_for_rmw(dev_priv, wal); + fw = wal_get_fw_for_rmw(uncore, wal); - spin_lock_irqsave(&dev_priv->uncore.lock, flags); - intel_uncore_forcewake_get__locked(&dev_priv->uncore, fw); + spin_lock_irqsave(&uncore->lock, flags); + intel_uncore_forcewake_get__locked(uncore, fw); for (i = 0, wa = wal->list; i < wal->count; i++, wa++) { - u32 val = I915_READ_FW(wa->reg); - - val &= ~wa->mask; - val |= wa->val; - - I915_WRITE_FW(wa->reg, val); + intel_uncore_rmw_fw(uncore, wa->reg, wa->mask, wa->val); } - intel_uncore_forcewake_put__locked(&dev_priv->uncore, fw); - spin_unlock_irqrestore(&dev_priv->uncore.lock, flags); + intel_uncore_forcewake_put__locked(uncore, fw); + spin_unlock_irqrestore(&uncore->lock, flags); } -void intel_gt_apply_workarounds(struct drm_i915_private *dev_priv) +void intel_gt_apply_workarounds(struct drm_i915_private *i915) { - wa_list_apply(dev_priv, &dev_priv->gt_wa_list); + wa_list_apply(&i915->uncore, &i915->gt_wa_list); } static bool @@ -961,7 +956,7 @@ wa_verify(const struct i915_wa *wa, u32 cur, const char *name, const char *from) return true; } -static bool wa_list_verify(struct drm_i915_private *dev_priv, +static bool wa_list_verify(struct intel_uncore *uncore, const struct i915_wa_list *wal, const char *from) { @@ -970,15 +965,17 @@ static bool wa_list_verify(struct drm_i915_private *dev_priv, bool ok = true; for (i = 0, wa = wal->list; i < wal->count; i++, wa++) - ok &= wa_verify(wa, I915_READ(wa->reg), wal->name, from); + ok &= wa_verify(wa, + intel_uncore_read(uncore, wa->reg), + wal->name, from); return ok; } -bool intel_gt_verify_workarounds(struct drm_i915_private *dev_priv, +bool intel_gt_verify_workarounds(struct drm_i915_private *i915, const char *from) { - return wa_list_verify(dev_priv, &dev_priv->gt_wa_list, from); + return wa_list_verify(&i915->uncore, &i915->gt_wa_list, from); } static void @@ -1088,8 +1085,8 @@ void intel_engine_init_whitelist(struct intel_engine_cs *engine) void intel_engine_apply_whitelist(struct intel_engine_cs *engine) { - struct drm_i915_private *dev_priv = engine->i915; const struct i915_wa_list *wal = &engine->whitelist; + struct intel_uncore *uncore = engine->uncore; const u32 base = engine->mmio_base; struct i915_wa *wa; unsigned int i; @@ -1098,13 +1095,15 @@ void intel_engine_apply_whitelist(struct intel_engine_cs *engine) return; for (i = 0, wa = wal->list; i < wal->count; i++, wa++) - I915_WRITE(RING_FORCE_TO_NONPRIV(base, i), - i915_mmio_reg_offset(wa->reg)); + intel_uncore_write(uncore, + RING_FORCE_TO_NONPRIV(base, i), + i915_mmio_reg_offset(wa->reg)); /* And clear the rest just in case of garbage */ for (; i < RING_MAX_NONPRIV_SLOTS; i++) - I915_WRITE(RING_FORCE_TO_NONPRIV(base, i), - i915_mmio_reg_offset(RING_NOPID(base))); + intel_uncore_write(uncore, + RING_FORCE_TO_NONPRIV(base, i), + i915_mmio_reg_offset(RING_NOPID(base))); } static void @@ -1253,7 +1252,7 @@ void intel_engine_init_workarounds(struct intel_engine_cs *engine) void intel_engine_apply_workarounds(struct intel_engine_cs *engine) { - wa_list_apply(engine->i915, &engine->wa_list); + wa_list_apply(engine->uncore, &engine->wa_list); } #if IS_ENABLED(CONFIG_DRM_I915_SELFTEST) diff --git a/drivers/gpu/drm/i915/intel_workarounds.h b/drivers/gpu/drm/i915/intel_workarounds.h index a1bf51c611a9..34eee5ec511e 100644 --- a/drivers/gpu/drm/i915/intel_workarounds.h +++ b/drivers/gpu/drm/i915/intel_workarounds.h @@ -20,9 +20,9 @@ static inline void intel_wa_list_free(struct i915_wa_list *wal) void intel_engine_init_ctx_wa(struct intel_engine_cs *engine); int intel_engine_emit_ctx_wa(struct i915_request *rq); -void intel_gt_init_workarounds(struct drm_i915_private *dev_priv); -void intel_gt_apply_workarounds(struct drm_i915_private *dev_priv); -bool intel_gt_verify_workarounds(struct drm_i915_private *dev_priv, +void intel_gt_init_workarounds(struct drm_i915_private *i915); +void intel_gt_apply_workarounds(struct drm_i915_private *i915); +bool intel_gt_verify_workarounds(struct drm_i915_private *i915, const char *from); void intel_engine_init_whitelist(struct intel_engine_cs *engine); diff --git a/drivers/gpu/drm/i915/selftests/intel_workarounds.c b/drivers/gpu/drm/i915/selftests/intel_workarounds.c index 3baed59008d7..567b6f8dae86 100644 --- a/drivers/gpu/drm/i915/selftests/intel_workarounds.c +++ b/drivers/gpu/drm/i915/selftests/intel_workarounds.c @@ -750,10 +750,11 @@ static bool verify_gt_engine_wa(struct drm_i915_private *i915, enum intel_engine_id id; bool ok = true; - ok &= wa_list_verify(i915, &lists->gt_wa_list, str); + ok &= wa_list_verify(&i915->uncore, &lists->gt_wa_list, str); for_each_engine(engine, i915, id) - ok &= wa_list_verify(i915, &lists->engine[id].wa_list, str); + ok &= wa_list_verify(engine->uncore, + &lists->engine[id].wa_list, str); return ok; }