Our execlist dispatch code requires a ppGTT so make sure we enforce that option in intel_sanitize_enable_ppgtt(). The comment already tries to explain that execlists requires ppgtt, but was written when gen8 may have also taken the legacy path; so rewrite the code to match the comment by using HAS_EXECLISTS() feature instead of the gen.
Signed-off-by: Chris Wilson <[email protected]> Cc: Matthew Auld <[email protected]> --- drivers/gpu/drm/i915/i915_gem_gtt.c | 4 ++-- drivers/gpu/drm/i915/intel_lrc.c | 5 +++-- 2 files changed, 5 insertions(+), 4 deletions(-) diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.c b/drivers/gpu/drm/i915/i915_gem_gtt.c index 56c7f8637311..34053f2947a8 100644 --- a/drivers/gpu/drm/i915/i915_gem_gtt.c +++ b/drivers/gpu/drm/i915/i915_gem_gtt.c @@ -152,10 +152,10 @@ int intel_sanitize_enable_ppgtt(struct drm_i915_private *dev_priv, } /* - * We don't allow disabling PPGTT for gen9+ as it's a requirement for + * We don't allow disabling PPGTT for gen8+ as it's a requirement for * execlists, the sole mechanism available to submit work. */ - if (enable_ppgtt == 0 && INTEL_GEN(dev_priv) < 9) + if (enable_ppgtt == 0 && HAS_EXECLISTS(dev_priv)) return 0; if (enable_ppgtt == 1) diff --git a/drivers/gpu/drm/i915/intel_lrc.c b/drivers/gpu/drm/i915/intel_lrc.c index 43957bb37a42..400f5c83d402 100644 --- a/drivers/gpu/drm/i915/intel_lrc.c +++ b/drivers/gpu/drm/i915/intel_lrc.c @@ -429,7 +429,7 @@ static u64 execlists_update_context(struct i915_request *rq) * PML4 is allocated during ppgtt init, so this is not needed * in 48-bit mode. */ - if (ppgtt && !i915_vm_is_48bit(&ppgtt->vm)) + if (!i915_vm_is_48bit(&ppgtt->vm)) execlists_update_context_pdps(ppgtt, reg_state); return ce->lrc_desc; @@ -1375,6 +1375,7 @@ execlists_context_pin(struct intel_engine_cs *engine, struct intel_context *ce = to_intel_context(ctx, engine); lockdep_assert_held(&ctx->i915->drm.struct_mutex); + GEM_BUG_ON(!(ctx->ppgtt ?: ctx->i915->mm.aliasing_ppgtt)); if (likely(ce->pin_count++)) return ce; @@ -2704,7 +2705,7 @@ static void execlists_init_reg_state(u32 *regs, CTX_REG(regs, CTX_PDP0_UDW, GEN8_RING_PDP_UDW(engine, 0), 0); CTX_REG(regs, CTX_PDP0_LDW, GEN8_RING_PDP_LDW(engine, 0), 0); - if (ppgtt && i915_vm_is_48bit(&ppgtt->vm)) { + if (i915_vm_is_48bit(&ppgtt->vm)) { /* 64b PPGTT (48bit canonical) * PDP0_DESCRIPTOR contains the base address to PML4 and * other PDP Descriptors are ignored. -- 2.19.0 _______________________________________________ Intel-gfx mailing list [email protected] https://lists.freedesktop.org/mailman/listinfo/intel-gfx
