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

Gavin Shan
2015-08-06T04:11:22Z

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-23VcF4HTsmIX0ybBhKVfKdBPR1lH4CV8@public.gmane.org>
---
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

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