[PATCH v6 17/42] powerpc/powernv: Rename PE# fields in PHB

[Gavin Shan <gwshan@linux.vnet.ibm.com>]

This renames the fields related to PE# in "struct pnv_phb" for
better reflecting of their usages as Alexey suggested. It doesn't
introduce behavioural changes.

Signed-off-by: Gavin Shan <gwshan@linux.vnet.ibm.com>
---
 arch/powerpc/platforms/powernv/eeh-powernv.c |  2 +-
 arch/powerpc/platforms/powernv/pci-ioda.c    | 58 ++++++++++++++--------------
 arch/powerpc/platforms/powernv/pci.c         |  2 +-
 arch/powerpc/platforms/powernv/pci.h         |  4 +-
 4 files changed, 33 insertions(+), 33 deletions(-)

diff --git a/arch/powerpc/platforms/powernv/eeh-powernv.c b/arch/powerpc/platforms/powernv/eeh-powernv.c
index e5e0d0b..347b1cf 100644
--- a/arch/powerpc/platforms/powernv/eeh-powernv.c
+++ b/arch/powerpc/platforms/powernv/eeh-powernv.c
@@ -81,7 +81,7 @@ static int pnv_eeh_init(void)
 		 * and P7IOC separately. So we should regard
 		 * PE#0 as valid for P7IOC.
 		 */
-		if (phb->ioda.reserved_pe != 0)
+		if (phb->ioda.reserved_pe_idx != 0)
 			eeh_add_flag(EEH_VALID_PE_ZERO);
 
 		break;
diff --git a/arch/powerpc/platforms/powernv/pci-ioda.c b/arch/powerpc/platforms/powernv/pci-ioda.c
index 9cccf2d5..56b058c 100644
--- a/arch/powerpc/platforms/powernv/pci-ioda.c
+++ b/arch/powerpc/platforms/powernv/pci-ioda.c
@@ -145,7 +145,7 @@ static struct pnv_ioda_pe *pnv_ioda_init_pe(struct pnv_phb *phb, int pe_no)
 
 static struct pnv_ioda_pe *pnv_ioda_reserve_pe(struct pnv_phb *phb, int pe_no)
 {
-	if (!(pe_no >= 0 && pe_no < phb->ioda.total_pe)) {
+	if (!(pe_no >= 0 && pe_no < phb->ioda.total_pe_num)) {
 		pr_warn("%s: Invalid PE %d on PHB#%x\n",
 			__func__, pe_no, phb->hose->global_number);
 		return NULL;
@@ -164,8 +164,8 @@ static struct pnv_ioda_pe *pnv_ioda_alloc_pe(struct pnv_phb *phb)
 
 	do {
 		pe = find_next_zero_bit(phb->ioda.pe_alloc,
-					phb->ioda.total_pe, 0);
-		if (pe >= phb->ioda.total_pe)
+					phb->ioda.total_pe_num, 0);
+		if (pe >= phb->ioda.total_pe_num)
 			return NULL;
 	} while(test_and_set_bit(pe, phb->ioda.pe_alloc));
 
@@ -188,7 +188,7 @@ static int pnv_ioda1_init_m64(struct pnv_phb *phb)
 	/* There are as many M64 segments as the maximum number
 	 * of PEs, which is 128.
 	 */
-	for (seg = 0; seg < phb->ioda.total_pe; seg += 8) {
+	for (seg = 0; seg < phb->ioda.total_pe_num; seg += 8) {
 		unsigned long base;
 		int64_t rc;
 
@@ -223,13 +223,13 @@ static int pnv_ioda1_init_m64(struct pnv_phb *phb)
 	 * MMIO range that the PHB supports.
 	 */
 	r = &phb->hose->mem_resources[1];
-	if (phb->ioda.reserved_pe == 0)
+	if (phb->ioda.reserved_pe_idx == 0)
 		r->start += phb->ioda.m64_segsize;
-	else if (phb->ioda.reserved_pe == (phb->ioda.total_pe - 1))
+	else if (phb->ioda.reserved_pe_idx == (phb->ioda.total_pe_num - 1))
 		r->end -= phb->ioda.m64_segsize;
 	else
 		pr_warn("  Cannot strip M64 segment for reserved PE#%d\n",
-			phb->ioda.reserved_pe);
+			phb->ioda.reserved_pe_idx);
 
 	return 0;
 
@@ -280,13 +280,13 @@ static int pnv_ioda2_init_m64(struct pnv_phb *phb)
 	 * expected to be 0 or last one of PE capabicity.
 	 */
 	r = &phb->hose->mem_resources[1];
-	if (phb->ioda.reserved_pe == 0)
+	if (phb->ioda.reserved_pe_idx == 0)
 		r->start += phb->ioda.m64_segsize;
-	else if (phb->ioda.reserved_pe == (phb->ioda.total_pe - 1))
+	else if (phb->ioda.reserved_pe_idx == (phb->ioda.total_pe_num - 1))
 		r->end -= phb->ioda.m64_segsize;
 	else
 		pr_warn("  Cannot strip M64 segment for reserved PE#%d\n",
-			phb->ioda.reserved_pe);
+			phb->ioda.reserved_pe_idx);
 
 	return 0;
 
@@ -355,7 +355,7 @@ static struct pnv_ioda_pe *pnv_ioda_pick_m64_pe(struct pci_bus *bus, bool all)
 		return NULL;
 
 	/* Allocate bitmap */
-	size = _ALIGN_UP(phb->ioda.total_pe / 8, sizeof(unsigned long));
+	size = _ALIGN_UP(phb->ioda.total_pe_num / 8, sizeof(unsigned long));
 	pe_alloc = kzalloc(size, GFP_KERNEL);
 	if (!pe_alloc) {
 		pr_warn("%s: Out of memory !\n",
@@ -371,7 +371,7 @@ static struct pnv_ioda_pe *pnv_ioda_pick_m64_pe(struct pci_bus *bus, bool all)
 	 * contributed by its child buses. For the case, we needn't
 	 * pick M64 dependent PE#.
 	 */
-	if (bitmap_empty(pe_alloc, phb->ioda.total_pe)) {
+	if (bitmap_empty(pe_alloc, phb->ioda.total_pe_num)) {
 		kfree(pe_alloc);
 		return NULL;
 	}
@@ -382,8 +382,8 @@ static struct pnv_ioda_pe *pnv_ioda_pick_m64_pe(struct pci_bus *bus, bool all)
 	 */
 	master_pe = NULL;
 	i = -1;
-	while ((i = find_next_bit(pe_alloc, phb->ioda.total_pe, i + 1)) <
-		phb->ioda.total_pe) {
+	while ((i = find_next_bit(pe_alloc, phb->ioda.total_pe_num, i + 1)) <
+		phb->ioda.total_pe_num) {
 		pe = &phb->ioda.pe_array[i];
 
 		if (!master_pe) {
@@ -461,7 +461,7 @@ static void __init pnv_ioda_parse_m64_window(struct pnv_phb *phb)
 	hose->mem_offset[1] = res->start - pci_addr;
 
 	phb->ioda.m64_size = resource_size(res);
-	phb->ioda.m64_segsize = phb->ioda.m64_size / phb->ioda.total_pe;
+	phb->ioda.m64_segsize = phb->ioda.m64_size / phb->ioda.total_pe_num;
 	phb->ioda.m64_base = pci_addr;
 
 	pr_info(" MEM64 0x%016llx..0x%016llx -> 0x%016llx\n",
@@ -571,7 +571,7 @@ static int pnv_ioda_get_pe_state(struct pnv_phb *phb, int pe_no)
 	s64 rc;
 
 	/* Sanity check on PE number */
-	if (pe_no < 0 || pe_no >= phb->ioda.total_pe)
+	if (pe_no < 0 || pe_no >= phb->ioda.total_pe_num)
 		return OPAL_EEH_STOPPED_PERM_UNAVAIL;
 
 	/*
@@ -1567,9 +1567,9 @@ int pnv_pci_sriov_enable(struct pci_dev *pdev, u16 num_vfs)
 		/* Calculate available PE for required VFs */
 		mutex_lock(&phb->ioda.pe_alloc_mutex);
 		pdn->offset = bitmap_find_next_zero_area(
-			phb->ioda.pe_alloc, phb->ioda.total_pe,
+			phb->ioda.pe_alloc, phb->ioda.total_pe_num,
 			0, num_vfs, 0);
-		if (pdn->offset >= phb->ioda.total_pe) {
+		if (pdn->offset >= phb->ioda.total_pe_num) {
 			mutex_unlock(&phb->ioda.pe_alloc_mutex);
 			dev_info(&pdev->dev, "Failed to enable VF%d\n", num_vfs);
 			pdn->offset = 0;
@@ -2803,7 +2803,7 @@ static void pnv_pci_ioda_fixup_iov_resources(struct pci_dev *pdev)
 
 	total_vfs = pci_sriov_get_totalvfs(pdev);
 	pdn->m64_per_iov = 1;
-	mul = phb->ioda.total_pe;
+	mul = phb->ioda.total_pe_num;
 
 	for (i = 0; i < PCI_SRIOV_NUM_BARS; i++) {
 		res = &pdev->resource[i + PCI_IOV_RESOURCES];
@@ -2889,7 +2889,7 @@ static int pnv_ioda_setup_one_res(struct pci_controller *hose,
 	region.start = _ALIGN_DOWN(region.start, segsize);
 	region.end   = _ALIGN_UP(region.end, segsize);
 	index = region.start / segsize;
-	while (index < phb->ioda.total_pe &&
+	while (index < phb->ioda.total_pe_num &&
 	       region.start < region.end) {
 		rc = opal_pci_map_pe_mmio_window(phb->opal_id,
 				pe->pe_number, win, 0, index);
@@ -3200,13 +3200,13 @@ static void __init pnv_pci_init_ioda_phb(struct device_node *np,
 		pr_err("  Failed to map registers !\n");
 
 	/* Initialize more IODA stuff */
-	phb->ioda.total_pe = 1;
+	phb->ioda.total_pe_num = 1;
 	prop32 = of_get_property(np, "ibm,opal-num-pes", NULL);
 	if (prop32)
-		phb->ioda.total_pe = be32_to_cpup(prop32);
+		phb->ioda.total_pe_num = be32_to_cpup(prop32);
 	prop32 = of_get_property(np, "ibm,opal-reserved-pe", NULL);
 	if (prop32)
-		phb->ioda.reserved_pe = be32_to_cpup(prop32);
+		phb->ioda.reserved_pe_idx = be32_to_cpup(prop32);
 
 	/* Invalidate RID to PE# mapping */
 	for (i = 0; i < ARRAY_SIZE(phb->ioda.pe_rmap); ++i)
@@ -3219,20 +3219,20 @@ static void __init pnv_pci_init_ioda_phb(struct device_node *np,
 	/* FW Has already off top 64k of M32 space (MSI space) */
 	phb->ioda.m32_size += 0x10000;
 
-	phb->ioda.m32_segsize = phb->ioda.m32_size / phb->ioda.total_pe;
+	phb->ioda.m32_segsize = phb->ioda.m32_size / phb->ioda.total_pe_num;
 	phb->ioda.m32_pci_base = hose->mem_resources[0].start - hose->mem_offset[0];
 	phb->ioda.io_size = hose->pci_io_size;
-	phb->ioda.io_segsize = phb->ioda.io_size / phb->ioda.total_pe;
+	phb->ioda.io_segsize = phb->ioda.io_size / phb->ioda.total_pe_num;
 	phb->ioda.io_pci_base = 0; /* XXX calculate this ? */
 
 	/* Allocate aux data & arrays. We don't have IO ports on PHB3 */
-	size = _ALIGN_UP(phb->ioda.total_pe / 8, sizeof(unsigned long));
+	size = _ALIGN_UP(phb->ioda.total_pe_num / 8, sizeof(unsigned long));
 	pemap_off = size;
-	size += phb->ioda.total_pe * sizeof(struct pnv_ioda_pe);
+	size += phb->ioda.total_pe_num * sizeof(struct pnv_ioda_pe);
 	aux = memblock_virt_alloc(size, 0);
 	phb->ioda.pe_alloc = aux;
 	phb->ioda.pe_array = aux + pemap_off;
-	set_bit(phb->ioda.reserved_pe, phb->ioda.pe_alloc);
+	set_bit(phb->ioda.reserved_pe_idx, phb->ioda.pe_alloc);
 
 	INIT_LIST_HEAD(&phb->ioda.pe_dma_list);
 	INIT_LIST_HEAD(&phb->ioda.pe_list);
@@ -3251,7 +3251,7 @@ static void __init pnv_pci_init_ioda_phb(struct device_node *np,
 #endif
 
 	pr_info("  %03d (%03d) PE's M32: 0x%x [segment=0x%x]\n",
-		phb->ioda.total_pe, phb->ioda.reserved_pe,
+		phb->ioda.total_pe_num, phb->ioda.reserved_pe_idx,
 		phb->ioda.m32_size, phb->ioda.m32_segsize);
 	if (phb->ioda.m64_size)
 		pr_info("                 M64: 0x%lx [segment=0x%lx]\n",
diff --git a/arch/powerpc/platforms/powernv/pci.c b/arch/powerpc/platforms/powernv/pci.c
index f3aead0..6c350a2 100644
--- a/arch/powerpc/platforms/powernv/pci.c
+++ b/arch/powerpc/platforms/powernv/pci.c
@@ -384,7 +384,7 @@ static void pnv_pci_config_check_eeh(struct pci_dn *pdn)
 		if (phb->type == PNV_PHB_P5IOC2)
 			pe_no = 0;
 		else
-			pe_no = phb->ioda.reserved_pe;
+			pe_no = phb->ioda.reserved_pe_idx;
 	}
 
 	/*
diff --git a/arch/powerpc/platforms/powernv/pci.h b/arch/powerpc/platforms/powernv/pci.h
index c0bc57f..fc899cd 100644
--- a/arch/powerpc/platforms/powernv/pci.h
+++ b/arch/powerpc/platforms/powernv/pci.h
@@ -134,8 +134,8 @@ struct pnv_phb {
 
 		struct {
 			/* Global bridge info */
-			unsigned int		total_pe;
-			unsigned int		reserved_pe;
+			unsigned int		total_pe_num;
+			unsigned int		reserved_pe_idx;
 
 			/* 32-bit MMIO window */
 			unsigned int		m32_size;
-- 
2.1.0