powerpc/powernv: Remove support for p5ioc2

"p5ioc2 is used by approximately 2 machines in the world, and has never
ever been a supported configuration."

The code for p5ioc2 is essentially unused and complicates what is already
a very complicated codebase.  Its removal is essentially a "free win" in
the effort to simplify the powernv PCI code.

In addition, support for p5ioc2 has been dropped from skiboot.  There's no
reason to keep it around in the kernel.

Signed-off-by: Russell Currey <ruscur@russell.cc>
Acked-by: Gavin Shan <gwshan@linux.vnet.ibm.com>
Acked-by: Stewart Smith <stewart@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>

1 files changed, 71 insertions, 81 deletions

diff --git a/arch/powerpc/platforms/powernv/pci.h b/arch/powerpc/platforms/powernv/pci.h
index 7f56313e8d72..32cae3d8e011 100644
--- a/arch/powerpc/platforms/powernv/pci.h
+++ b/arch/powerpc/platforms/powernv/pci.h
@@ -4,16 +4,14 @@
 struct pci_dn;
 
 enum pnv_phb_type {
-	PNV_PHB_P5IOC2	= 0,
-	PNV_PHB_IODA1	= 1,
-	PNV_PHB_IODA2	= 2,
-	PNV_PHB_NPU	= 3,
+	PNV_PHB_IODA1	= 0,
+	PNV_PHB_IODA2	= 1,
+	PNV_PHB_NPU	= 2,
 };
 
 /* Precise PHB model for error management */
 enum pnv_phb_model {
 	PNV_PHB_MODEL_UNKNOWN,
-	PNV_PHB_MODEL_P5IOC2,
 	PNV_PHB_MODEL_P7IOC,
 	PNV_PHB_MODEL_PHB3,
 	PNV_PHB_MODEL_NPU,
@@ -121,81 +119,74 @@ struct pnv_phb {
 	void (*freeze_pe)(struct pnv_phb *phb, int pe_no);
 	int (*unfreeze_pe)(struct pnv_phb *phb, int pe_no, int opt);
 
-	union {
-		struct {
-			struct iommu_table iommu_table;
-			struct iommu_table_group table_group;
-		} p5ioc2;
-
-		struct {
-			/* Global bridge info */
-			unsigned int		total_pe;
-			unsigned int		reserved_pe;
-
-			/* 32-bit MMIO window */
-			unsigned int		m32_size;
-			unsigned int		m32_segsize;
-			unsigned int		m32_pci_base;
-
-			/* 64-bit MMIO window */
-			unsigned int		m64_bar_idx;
-			unsigned long		m64_size;
-			unsigned long		m64_segsize;
-			unsigned long		m64_base;
-			unsigned long		m64_bar_alloc;
-
-			/* IO ports */
-			unsigned int		io_size;
-			unsigned int		io_segsize;
-			unsigned int		io_pci_base;
-
-			/* PE allocation bitmap */
-			unsigned long		*pe_alloc;
-			/* PE allocation mutex */
-			struct mutex		pe_alloc_mutex;
-
-			/* M32 & IO segment maps */
-			unsigned int		*m32_segmap;
-			unsigned int		*io_segmap;
-			struct pnv_ioda_pe	*pe_array;
-
-			/* IRQ chip */
-			int			irq_chip_init;
-			struct irq_chip		irq_chip;
-
-			/* Sorted list of used PE's based
-			 * on the sequence of creation
-			 */
-			struct list_head	pe_list;
-			struct mutex            pe_list_mutex;
-
-			/* Reverse map of PEs, will have to extend if
-			 * we are to support more than 256 PEs, indexed
-			 * bus { bus, devfn }
-			 */
-			unsigned char		pe_rmap[0x10000];
-
-			/* 32-bit TCE tables allocation */
-			unsigned long		tce32_count;
-
-			/* Total "weight" for the sake of DMA resources
-			 * allocation
-			 */
-			unsigned int		dma_weight;
-			unsigned int		dma_pe_count;
-
-			/* Sorted list of used PE's, sorted at
-			 * boot for resource allocation purposes
-			 */
-			struct list_head	pe_dma_list;
-
-			/* TCE cache invalidate registers (physical and
-			 * remapped)
-			 */
-			phys_addr_t		tce_inval_reg_phys;
-			__be64 __iomem		*tce_inval_reg;
-		} ioda;
-	};
+	struct {
+		/* Global bridge info */
+		unsigned int		total_pe;
+		unsigned int		reserved_pe;
+
+		/* 32-bit MMIO window */
+		unsigned int		m32_size;
+		unsigned int		m32_segsize;
+		unsigned int		m32_pci_base;
+
+		/* 64-bit MMIO window */
+		unsigned int		m64_bar_idx;
+		unsigned long		m64_size;
+		unsigned long		m64_segsize;
+		unsigned long		m64_base;
+		unsigned long		m64_bar_alloc;
+
+		/* IO ports */
+		unsigned int		io_size;
+		unsigned int		io_segsize;
+		unsigned int		io_pci_base;
+
+		/* PE allocation bitmap */
+		unsigned long		*pe_alloc;
+		/* PE allocation mutex */
+		struct mutex		pe_alloc_mutex;
+
+		/* M32 & IO segment maps */
+		unsigned int		*m32_segmap;
+		unsigned int		*io_segmap;
+		struct pnv_ioda_pe	*pe_array;
+
+		/* IRQ chip */
+		int			irq_chip_init;
+		struct irq_chip		irq_chip;
+
+		/* Sorted list of used PE's based
+		 * on the sequence of creation
+		 */
+		struct list_head	pe_list;
+		struct mutex            pe_list_mutex;
+
+		/* Reverse map of PEs, will have to extend if
+		 * we are to support more than 256 PEs, indexed
+		 * bus { bus, devfn }
+		 */
+		unsigned char		pe_rmap[0x10000];
+
+		/* 32-bit TCE tables allocation */
+		unsigned long		tce32_count;
+
+		/* Total "weight" for the sake of DMA resources
+		 * allocation
+		 */
+		unsigned int		dma_weight;
+		unsigned int		dma_pe_count;
+
+		/* Sorted list of used PE's, sorted at
+		 * boot for resource allocation purposes
+		 */
+		struct list_head	pe_dma_list;
+
+		/* TCE cache invalidate registers (physical and
+		 * remapped)
+		 */
+		phys_addr_t		tce_inval_reg_phys;
+		__be64 __iomem		*tce_inval_reg;
+	} ioda;
 
 	/* PHB and hub status structure */
 	union {
@@ -232,7 +223,6 @@ extern void pnv_pci_unlink_table_and_group(struct iommu_table *tbl,
 extern void pnv_pci_setup_iommu_table(struct iommu_table *tbl,
 				      void *tce_mem, u64 tce_size,
 				      u64 dma_offset, unsigned page_shift);
-extern void pnv_pci_init_p5ioc2_hub(struct device_node *np);
 extern void pnv_pci_init_ioda_hub(struct device_node *np);
 extern void pnv_pci_init_ioda2_phb(struct device_node *np);
 extern void pnv_pci_init_npu_phb(struct device_node *np);