Revert "ace: mm: tlb: Check tlb translation enabled before flushing c…

…ache"

This reverts commit 311ddf9. That
commit breaks firmware boot on both MTL and LNL.

Signed-off-by: Guennadi Liakhovetski <guennadi.liakhovetski@linux.intel.com>

drivers/mm/mm_drv_intel_adsp_mtl_tlb.c

@@ -338,7 +338,6 @@ static int sys_mm_drv_unmap_page_wflush(void *virt, bool flush_data)
  k_spinlock_key_t key;
  uint32_t entry_idx, bank_idx;
  uint16_t *tlb_entries = UINT_TO_POINTER(TLB_BASE);
- uint16_t entry;
  uintptr_t pa;
  int ret = 0;
 
@@ -360,17 +359,6 @@ static int sys_mm_drv_unmap_page_wflush(void *virt, bool flush_data)
 
  key = k_spin_lock(&tlb_lock);
 
- entry_idx = get_tlb_entry_idx(va);
- entry = tlb_entries[entry_idx];
-
- /* Check if the translation is enabled in the TLB entry.
- * Attempt to flush the cache of an inactive address will result in a cpu exception.
- */
- if (!(entry & TLB_ENABLE_BIT)) {
- ret = -EFAULT;
- goto out_unlock;
- }
-
  /*
  * Flush the cache to make sure the backing physical page
  * has the latest data.
@@ -383,7 +371,8 @@ static int sys_mm_drv_unmap_page_wflush(void *virt, bool flush_data)
 #endif
  }
 
- pa = tlb_entry_to_pa(entry);
+ entry_idx = get_tlb_entry_idx(va);
+ pa = tlb_entry_to_pa(tlb_entries[entry_idx]);
 
  /* Restore default entry settings with cleared the enable bit. */
  tlb_entries[entry_idx] = 0;
@@ -406,7 +395,6 @@ static int sys_mm_drv_unmap_page_wflush(void *virt, bool flush_data)
  }
  }
 
-out_unlock:
  k_spin_unlock(&tlb_lock, key);
 
 out: