diff options
Diffstat (limited to 'drivers/gpu/drm/i915/gt/intel_lrc.c')
| -rw-r--r-- | drivers/gpu/drm/i915/gt/intel_lrc.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/drivers/gpu/drm/i915/gt/intel_lrc.c b/drivers/gpu/drm/i915/gt/intel_lrc.c index 7bd5d2c29056..51847a846002 100644 --- a/drivers/gpu/drm/i915/gt/intel_lrc.c +++ b/drivers/gpu/drm/i915/gt/intel_lrc.c @@ -820,8 +820,10 @@ static bool ctx_needs_runalone(const struct intel_context *ce) bool ctx_is_protected = false; /* - * On MTL and newer platforms, protected contexts require setting - * the LRC run-alone bit or else the encryption will not happen. + * Wa_14019159160 - Case 2. + * On some platforms, protected contexts require setting + * the LRC run-alone bit or else the encryption/decryption will not happen. + * NOTE: Case 2 only applies to PXP use-case of said workaround. */ if (GRAPHICS_VER_FULL(ce->engine->i915) >= IP_VER(12, 70) && (ce->engine->class == COMPUTE_CLASS || ce->engine->class == RENDER_CLASS)) { @@ -850,6 +852,7 @@ static void init_common_regs(u32 * const regs, if (GRAPHICS_VER(engine->i915) < 11) ctl |= _MASKED_BIT_DISABLE(CTX_CTRL_ENGINE_CTX_SAVE_INHIBIT | CTX_CTRL_RS_CTX_ENABLE); + /* Wa_14019159160 - Case 2.*/ if (ctx_needs_runalone(ce)) ctl |= _MASKED_BIT_ENABLE(GEN12_CTX_CTRL_RUNALONE_MODE); regs[CTX_CONTEXT_CONTROL] = ctl; |