powerpc fixes for 6.14 #2

- Fix to handle PE state in pseries_eeh_get_state()
  - Handle unset of tce window if it was never set
 
 Thanks to: Narayana Murty N, Ritesh Harjani (IBM), Shivaprasad G Bhat, Vaishnavi Bhat.
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Merge tag 'powerpc-6.14-2' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux

Pull powerpc fixes from Madhavan Srinivasan:

 - Fix to handle PE state in pseries_eeh_get_state()

 - Handle unset of tce window if it was never set

Thanks to Narayana Murty N, Ritesh Harjani (IBM), Shivaprasad G Bhat,
and Vaishnavi Bhat.

* tag 'powerpc-6.14-2' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
  powerpc/pseries/iommu: Don't unset window if it was never set
  powerpc/pseries/eeh: Fix get PE state translation

arch/powerpc/platforms/pseries/eeh_pseries.c

@@ -581,7 +581,9 @@ static int pseries_eeh_get_state(struct eeh_pe *pe, int *delay)
 	switch(rets[0]) {
 	case 0:
 		result = EEH_STATE_MMIO_ACTIVE	|
-			 EEH_STATE_DMA_ACTIVE;
+			 EEH_STATE_DMA_ACTIVE	|
+			 EEH_STATE_MMIO_ENABLED	|
+			 EEH_STATE_DMA_ENABLED;
 		break;
 	case 1:
 		result = EEH_STATE_RESET_ACTIVE |

arch/powerpc/platforms/pseries/iommu.c

@@ -2208,6 +2208,9 @@ static long spapr_tce_unset_window(struct iommu_table_group *table_group, int nu
 	const char *win_name;
 	int ret = -ENODEV;
 
+	if (!tbl) /* The table was never created OR window was never opened */
+		return 0;
+
 	mutex_lock(&dma_win_init_mutex);
 
 	if ((num == 0) && is_default_window_table(table_group, tbl))