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-rw-r--r--arch/powerpc/sysdev/axonram.c5
-rw-r--r--arch/powerpc/sysdev/cpm_common.c3
-rw-r--r--arch/powerpc/sysdev/ehv_pic.c3
-rw-r--r--arch/powerpc/sysdev/fsl_msi.c2
-rw-r--r--arch/powerpc/sysdev/fsl_pci.c88
-rw-r--r--arch/powerpc/sysdev/i8259.c3
-rw-r--r--arch/powerpc/sysdev/ipic.c3
-rw-r--r--arch/powerpc/sysdev/mpc5xxx_clocks.c5
-rw-r--r--arch/powerpc/sysdev/mpc8xx_pic.c2
-rw-r--r--arch/powerpc/sysdev/mpic.c26
-rw-r--r--arch/powerpc/sysdev/mpic_msi.c2
-rw-r--r--arch/powerpc/sysdev/msi_bitmap.c18
-rw-r--r--arch/powerpc/sysdev/qe_lib/qe_ic.c3
13 files changed, 99 insertions, 64 deletions
diff --git a/arch/powerpc/sysdev/axonram.c b/arch/powerpc/sysdev/axonram.c
index d2b79bc33..7a399b4d6 100644
--- a/arch/powerpc/sysdev/axonram.c
+++ b/arch/powerpc/sysdev/axonram.c
@@ -103,7 +103,7 @@ axon_ram_irq_handler(int irq, void *dev)
* axon_ram_make_request - make_request() method for block device
* @queue, @bio: see blk_queue_make_request()
*/
-static void
+static blk_qc_t
axon_ram_make_request(struct request_queue *queue, struct bio *bio)
{
struct axon_ram_bank *bank = bio->bi_bdev->bd_disk->private_data;
@@ -120,7 +120,7 @@ axon_ram_make_request(struct request_queue *queue, struct bio *bio)
bio_for_each_segment(vec, bio, iter) {
if (unlikely(phys_mem + vec.bv_len > phys_end)) {
bio_io_error(bio);
- return;
+ return BLK_QC_T_NONE;
}
user_mem = page_address(vec.bv_page) + vec.bv_offset;
@@ -133,6 +133,7 @@ axon_ram_make_request(struct request_queue *queue, struct bio *bio)
transfered += vec.bv_len;
}
bio_endio(bio);
+ return BLK_QC_T_NONE;
}
/**
diff --git a/arch/powerpc/sysdev/cpm_common.c b/arch/powerpc/sysdev/cpm_common.c
index e2ea51961..e00a5ee58 100644
--- a/arch/powerpc/sysdev/cpm_common.c
+++ b/arch/powerpc/sysdev/cpm_common.c
@@ -147,7 +147,8 @@ unsigned long cpm_muram_alloc(unsigned long size, unsigned long align)
spin_lock_irqsave(&cpm_muram_lock, flags);
cpm_muram_info.alignment = align;
start = rh_alloc(&cpm_muram_info, size, "commproc");
- memset_io(cpm_muram_addr(start), 0, size);
+ if (!IS_ERR_VALUE(start))
+ memset_io(cpm_muram_addr(start), 0, size);
spin_unlock_irqrestore(&cpm_muram_lock, flags);
return start;
diff --git a/arch/powerpc/sysdev/ehv_pic.c b/arch/powerpc/sysdev/ehv_pic.c
index eca0b0079..bffcc7a48 100644
--- a/arch/powerpc/sysdev/ehv_pic.c
+++ b/arch/powerpc/sysdev/ehv_pic.c
@@ -181,7 +181,8 @@ static int ehv_pic_host_match(struct irq_domain *h, struct device_node *node,
enum irq_domain_bus_token bus_token)
{
/* Exact match, unless ehv_pic node is NULL */
- return h->of_node == NULL || h->of_node == node;
+ struct device_node *of_node = irq_domain_get_of_node(h);
+ return of_node == NULL || of_node == node;
}
static int ehv_pic_host_map(struct irq_domain *h, unsigned int virq,
diff --git a/arch/powerpc/sysdev/fsl_msi.c b/arch/powerpc/sysdev/fsl_msi.c
index 48a576aa4..3a2be3676 100644
--- a/arch/powerpc/sysdev/fsl_msi.c
+++ b/arch/powerpc/sysdev/fsl_msi.c
@@ -110,7 +110,7 @@ static int fsl_msi_init_allocator(struct fsl_msi *msi_data)
int rc, hwirq;
rc = msi_bitmap_alloc(&msi_data->bitmap, NR_MSI_IRQS_MAX,
- msi_data->irqhost->of_node);
+ irq_domain_get_of_node(msi_data->irqhost));
if (rc)
return rc;
diff --git a/arch/powerpc/sysdev/fsl_pci.c b/arch/powerpc/sysdev/fsl_pci.c
index ebc1f412c..610f472f9 100644
--- a/arch/powerpc/sysdev/fsl_pci.c
+++ b/arch/powerpc/sysdev/fsl_pci.c
@@ -179,6 +179,19 @@ static int setup_one_atmu(struct ccsr_pci __iomem *pci,
return i;
}
+static bool is_kdump(void)
+{
+ struct device_node *node;
+
+ node = of_find_node_by_type(NULL, "memory");
+ if (!node) {
+ WARN_ON_ONCE(1);
+ return false;
+ }
+
+ return of_property_read_bool(node, "linux,usable-memory");
+}
+
/* atmu setup for fsl pci/pcie controller */
static void setup_pci_atmu(struct pci_controller *hose)
{
@@ -192,6 +205,16 @@ static void setup_pci_atmu(struct pci_controller *hose)
const char *name = hose->dn->full_name;
const u64 *reg;
int len;
+ bool setup_inbound;
+
+ /*
+ * If this is kdump, we don't want to trigger a bunch of PCI
+ * errors by closing the window on in-flight DMA.
+ *
+ * We still run most of the function's logic so that things like
+ * hose->dma_window_size still get set.
+ */
+ setup_inbound = !is_kdump();
if (early_find_capability(hose, 0, 0, PCI_CAP_ID_EXP)) {
if (in_be32(&pci->block_rev1) >= PCIE_IP_REV_2_2) {
@@ -204,8 +227,11 @@ static void setup_pci_atmu(struct pci_controller *hose)
/* Disable all windows (except powar0 since it's ignored) */
for(i = 1; i < 5; i++)
out_be32(&pci->pow[i].powar, 0);
- for (i = start_idx; i < end_idx; i++)
- out_be32(&pci->piw[i].piwar, 0);
+
+ if (setup_inbound) {
+ for (i = start_idx; i < end_idx; i++)
+ out_be32(&pci->piw[i].piwar, 0);
+ }
/* Setup outbound MEM window */
for(i = 0, j = 1; i < 3; i++) {
@@ -278,6 +304,7 @@ static void setup_pci_atmu(struct pci_controller *hose)
/* Setup inbound mem window */
mem = memblock_end_of_DRAM();
+ pr_info("%s: end of DRAM %llx\n", __func__, mem);
/*
* The msi-address-64 property, if it exists, indicates the physical
@@ -320,12 +347,14 @@ static void setup_pci_atmu(struct pci_controller *hose)
piwar |= ((mem_log - 1) & PIWAR_SZ_MASK);
- /* Setup inbound memory window */
- out_be32(&pci->piw[win_idx].pitar, 0x00000000);
- out_be32(&pci->piw[win_idx].piwbar, 0x00000000);
- out_be32(&pci->piw[win_idx].piwar, piwar);
- win_idx--;
+ if (setup_inbound) {
+ /* Setup inbound memory window */
+ out_be32(&pci->piw[win_idx].pitar, 0x00000000);
+ out_be32(&pci->piw[win_idx].piwbar, 0x00000000);
+ out_be32(&pci->piw[win_idx].piwar, piwar);
+ }
+ win_idx--;
hose->dma_window_base_cur = 0x00000000;
hose->dma_window_size = (resource_size_t)sz;
@@ -343,13 +372,15 @@ static void setup_pci_atmu(struct pci_controller *hose)
piwar = (piwar & ~PIWAR_SZ_MASK) | (mem_log - 1);
- /* Setup inbound memory window */
- out_be32(&pci->piw[win_idx].pitar, 0x00000000);
- out_be32(&pci->piw[win_idx].piwbear,
- pci64_dma_offset >> 44);
- out_be32(&pci->piw[win_idx].piwbar,
- pci64_dma_offset >> 12);
- out_be32(&pci->piw[win_idx].piwar, piwar);
+ if (setup_inbound) {
+ /* Setup inbound memory window */
+ out_be32(&pci->piw[win_idx].pitar, 0x00000000);
+ out_be32(&pci->piw[win_idx].piwbear,
+ pci64_dma_offset >> 44);
+ out_be32(&pci->piw[win_idx].piwbar,
+ pci64_dma_offset >> 12);
+ out_be32(&pci->piw[win_idx].piwar, piwar);
+ }
/*
* install our own dma_set_mask handler to fixup dma_ops
@@ -362,12 +393,15 @@ static void setup_pci_atmu(struct pci_controller *hose)
} else {
u64 paddr = 0;
- /* Setup inbound memory window */
- out_be32(&pci->piw[win_idx].pitar, paddr >> 12);
- out_be32(&pci->piw[win_idx].piwbar, paddr >> 12);
- out_be32(&pci->piw[win_idx].piwar, (piwar | (mem_log - 1)));
- win_idx--;
+ if (setup_inbound) {
+ /* Setup inbound memory window */
+ out_be32(&pci->piw[win_idx].pitar, paddr >> 12);
+ out_be32(&pci->piw[win_idx].piwbar, paddr >> 12);
+ out_be32(&pci->piw[win_idx].piwar,
+ (piwar | (mem_log - 1)));
+ }
+ win_idx--;
paddr += 1ull << mem_log;
sz -= 1ull << mem_log;
@@ -375,11 +409,15 @@ static void setup_pci_atmu(struct pci_controller *hose)
mem_log = ilog2(sz);
piwar |= (mem_log - 1);
- out_be32(&pci->piw[win_idx].pitar, paddr >> 12);
- out_be32(&pci->piw[win_idx].piwbar, paddr >> 12);
- out_be32(&pci->piw[win_idx].piwar, piwar);
- win_idx--;
+ if (setup_inbound) {
+ out_be32(&pci->piw[win_idx].pitar,
+ paddr >> 12);
+ out_be32(&pci->piw[win_idx].piwbar,
+ paddr >> 12);
+ out_be32(&pci->piw[win_idx].piwar, piwar);
+ }
+ win_idx--;
paddr += 1ull << mem_log;
}
@@ -999,10 +1037,10 @@ int fsl_pci_mcheck_exception(struct pt_regs *regs)
ret = get_user(regs->nip, &inst);
pagefault_enable();
} else {
- ret = probe_kernel_address(regs->nip, inst);
+ ret = probe_kernel_address((void *)regs->nip, inst);
}
- if (mcheck_handle_load(regs, inst)) {
+ if (!ret && mcheck_handle_load(regs, inst)) {
regs->nip += 4;
return 1;
}
diff --git a/arch/powerpc/sysdev/i8259.c b/arch/powerpc/sysdev/i8259.c
index e1a9c2c2d..6f99ed396 100644
--- a/arch/powerpc/sysdev/i8259.c
+++ b/arch/powerpc/sysdev/i8259.c
@@ -165,7 +165,8 @@ static struct resource pic_edgectrl_iores = {
static int i8259_host_match(struct irq_domain *h, struct device_node *node,
enum irq_domain_bus_token bus_token)
{
- return h->of_node == NULL || h->of_node == node;
+ struct device_node *of_node = irq_domain_get_of_node(h);
+ return of_node == NULL || of_node == node;
}
static int i8259_host_map(struct irq_domain *h, unsigned int virq,
diff --git a/arch/powerpc/sysdev/ipic.c b/arch/powerpc/sysdev/ipic.c
index b1297ab15..f76ee39cb 100644
--- a/arch/powerpc/sysdev/ipic.c
+++ b/arch/powerpc/sysdev/ipic.c
@@ -675,7 +675,8 @@ static int ipic_host_match(struct irq_domain *h, struct device_node *node,
enum irq_domain_bus_token bus_token)
{
/* Exact match, unless ipic node is NULL */
- return h->of_node == NULL || h->of_node == node;
+ struct device_node *of_node = irq_domain_get_of_node(h);
+ return of_node == NULL || of_node == node;
}
static int ipic_host_map(struct irq_domain *h, unsigned int virq,
diff --git a/arch/powerpc/sysdev/mpc5xxx_clocks.c b/arch/powerpc/sysdev/mpc5xxx_clocks.c
index f4f0301b9..573292663 100644
--- a/arch/powerpc/sysdev/mpc5xxx_clocks.c
+++ b/arch/powerpc/sysdev/mpc5xxx_clocks.c
@@ -13,7 +13,6 @@
unsigned long mpc5xxx_get_bus_frequency(struct device_node *node)
{
- struct device_node *np;
const unsigned int *p_bus_freq = NULL;
of_node_get(node);
@@ -22,9 +21,7 @@ unsigned long mpc5xxx_get_bus_frequency(struct device_node *node)
if (p_bus_freq)
break;
- np = of_get_parent(node);
- of_node_put(node);
- node = np;
+ node = of_get_next_parent(node);
}
of_node_put(node);
diff --git a/arch/powerpc/sysdev/mpc8xx_pic.c b/arch/powerpc/sysdev/mpc8xx_pic.c
index 9a4239758..b7cf7abff 100644
--- a/arch/powerpc/sysdev/mpc8xx_pic.c
+++ b/arch/powerpc/sysdev/mpc8xx_pic.c
@@ -61,7 +61,7 @@ static int mpc8xx_set_irq_type(struct irq_data *d, unsigned int flow_type)
}
static struct irq_chip mpc8xx_pic = {
- .name = "MPC8XX SIU",
+ .name = "8XX SIU",
.irq_unmask = mpc8xx_unmask_irq,
.irq_mask = mpc8xx_mask_irq,
.irq_ack = mpc8xx_ack,
diff --git a/arch/powerpc/sysdev/mpic.c b/arch/powerpc/sysdev/mpic.c
index 537e5db85..2a0452e36 100644
--- a/arch/powerpc/sysdev/mpic.c
+++ b/arch/powerpc/sysdev/mpic.c
@@ -924,22 +924,6 @@ int mpic_set_irq_type(struct irq_data *d, unsigned int flow_type)
return IRQ_SET_MASK_OK_NOCOPY;
}
-static int mpic_irq_set_wake(struct irq_data *d, unsigned int on)
-{
- struct irq_desc *desc = container_of(d, struct irq_desc, irq_data);
- struct mpic *mpic = mpic_from_irq_data(d);
-
- if (!(mpic->flags & MPIC_FSL))
- return -ENXIO;
-
- if (on)
- desc->action->flags |= IRQF_NO_SUSPEND;
- else
- desc->action->flags &= ~IRQF_NO_SUSPEND;
-
- return 0;
-}
-
void mpic_set_vector(unsigned int virq, unsigned int vector)
{
struct mpic *mpic = mpic_from_irq(virq);
@@ -977,7 +961,6 @@ static struct irq_chip mpic_irq_chip = {
.irq_unmask = mpic_unmask_irq,
.irq_eoi = mpic_end_irq,
.irq_set_type = mpic_set_irq_type,
- .irq_set_wake = mpic_irq_set_wake,
};
#ifdef CONFIG_SMP
@@ -992,7 +975,6 @@ static struct irq_chip mpic_tm_chip = {
.irq_mask = mpic_mask_tm,
.irq_unmask = mpic_unmask_tm,
.irq_eoi = mpic_end_irq,
- .irq_set_wake = mpic_irq_set_wake,
};
#ifdef CONFIG_MPIC_U3_HT_IRQS
@@ -1011,7 +993,8 @@ static int mpic_host_match(struct irq_domain *h, struct device_node *node,
enum irq_domain_bus_token bus_token)
{
/* Exact match, unless mpic node is NULL */
- return h->of_node == NULL || h->of_node == node;
+ struct device_node *of_node = irq_domain_get_of_node(h);
+ return of_node == NULL || of_node == node;
}
static int mpic_host_map(struct irq_domain *h, unsigned int virq,
@@ -1283,8 +1266,11 @@ struct mpic * __init mpic_alloc(struct device_node *node,
flags |= MPIC_NO_RESET;
if (of_get_property(node, "single-cpu-affinity", NULL))
flags |= MPIC_SINGLE_DEST_CPU;
- if (of_device_is_compatible(node, "fsl,mpic"))
+ if (of_device_is_compatible(node, "fsl,mpic")) {
flags |= MPIC_FSL | MPIC_LARGE_VECTORS;
+ mpic_irq_chip.flags |= IRQCHIP_SKIP_SET_WAKE;
+ mpic_tm_chip.flags |= IRQCHIP_SKIP_SET_WAKE;
+ }
mpic = kzalloc(sizeof(struct mpic), GFP_KERNEL);
if (mpic == NULL)
diff --git a/arch/powerpc/sysdev/mpic_msi.c b/arch/powerpc/sysdev/mpic_msi.c
index 7dc39f35a..1d48a5385 100644
--- a/arch/powerpc/sysdev/mpic_msi.c
+++ b/arch/powerpc/sysdev/mpic_msi.c
@@ -84,7 +84,7 @@ int mpic_msi_init_allocator(struct mpic *mpic)
int rc;
rc = msi_bitmap_alloc(&mpic->msi_bitmap, mpic->num_sources,
- mpic->irqhost->of_node);
+ irq_domain_get_of_node(mpic->irqhost));
if (rc)
return rc;
diff --git a/arch/powerpc/sysdev/msi_bitmap.c b/arch/powerpc/sysdev/msi_bitmap.c
index 73b64c735..ed5234ed8 100644
--- a/arch/powerpc/sysdev/msi_bitmap.c
+++ b/arch/powerpc/sysdev/msi_bitmap.c
@@ -11,6 +11,7 @@
#include <linux/slab.h>
#include <linux/kernel.h>
#include <linux/bitmap.h>
+#include <linux/bootmem.h>
#include <asm/msi_bitmap.h>
#include <asm/setup.h>
@@ -111,7 +112,7 @@ int msi_bitmap_reserve_dt_hwirqs(struct msi_bitmap *bmp)
return 0;
}
-int msi_bitmap_alloc(struct msi_bitmap *bmp, unsigned int irq_count,
+int __init_refok msi_bitmap_alloc(struct msi_bitmap *bmp, unsigned int irq_count,
struct device_node *of_node)
{
int size;
@@ -122,7 +123,15 @@ int msi_bitmap_alloc(struct msi_bitmap *bmp, unsigned int irq_count,
size = BITS_TO_LONGS(irq_count) * sizeof(long);
pr_debug("msi_bitmap: allocator bitmap size is 0x%x bytes\n", size);
- bmp->bitmap = zalloc_maybe_bootmem(size, GFP_KERNEL);
+ bmp->bitmap_from_slab = slab_is_available();
+ if (bmp->bitmap_from_slab)
+ bmp->bitmap = kzalloc(size, GFP_KERNEL);
+ else {
+ bmp->bitmap = memblock_virt_alloc(size, 0);
+ /* the bitmap won't be freed from memblock allocator */
+ kmemleak_not_leak(bmp->bitmap);
+ }
+
if (!bmp->bitmap) {
pr_debug("msi_bitmap: ENOMEM allocating allocator bitmap!\n");
return -ENOMEM;
@@ -138,7 +147,8 @@ int msi_bitmap_alloc(struct msi_bitmap *bmp, unsigned int irq_count,
void msi_bitmap_free(struct msi_bitmap *bmp)
{
- /* we can't free the bitmap we don't know if it's bootmem etc. */
+ if (bmp->bitmap_from_slab)
+ kfree(bmp->bitmap);
of_node_put(bmp->of_node);
bmp->bitmap = NULL;
}
@@ -203,8 +213,6 @@ static void __init test_basics(void)
/* Clients may WARN_ON bitmap == NULL for "not-allocated" */
WARN_ON(bmp.bitmap != NULL);
-
- kfree(bmp.bitmap);
}
static void __init test_of_node(void)
diff --git a/arch/powerpc/sysdev/qe_lib/qe_ic.c b/arch/powerpc/sysdev/qe_lib/qe_ic.c
index fbcc1f855..ef36f16f9 100644
--- a/arch/powerpc/sysdev/qe_lib/qe_ic.c
+++ b/arch/powerpc/sysdev/qe_lib/qe_ic.c
@@ -248,7 +248,8 @@ static int qe_ic_host_match(struct irq_domain *h, struct device_node *node,
enum irq_domain_bus_token bus_token)
{
/* Exact match, unless qe_ic node is NULL */
- return h->of_node == NULL || h->of_node == node;
+ struct device_node *of_node = irq_domain_get_of_node(h);
+ return of_node == NULL || of_node == node;
}
static int qe_ic_host_map(struct irq_domain *h, unsigned int virq,
generated by cgit v1.2.3-54-g00ecf (git 2.45.2) at 2024-11-08 20:27:42 +0000