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Message-Id: <1433513463-19128-10-git-send-email-joro@8bytes.org>
Date: Fri, 5 Jun 2015 16:10:55 +0200
From: Joerg Roedel <joro@...tes.org>
To: iommu@...ts.linux-foundation.org
Cc: zhen-hual@...com, bhe@...hat.com, dwmw2@...radead.org,
vgoyal@...hat.com, dyoung@...hat.com, alex.williamson@...hat.com,
ddutile@...hat.com, ishii.hironobu@...fujitsu.com,
indou.takao@...fujitsu.com, bhelgaas@...gle.com, doug.hatch@...com,
jerry.hoemann@...com, tom.vaden@...com, li.zhang6@...com,
lisa.mitchell@...com, billsumnerlinux@...il.com, rwright@...com,
linux-kernel@...r.kernel.org, linux-pci@...r.kernel.org,
kexec@...ts.infradead.org, joro@...tes.org, jroedel@...e.de
Subject: [PATCH 09/17] iommu/vt-d: Clean up log messages in intel-iommu.c
From: Joerg Roedel <jroedel@...e.de>
Give them a common prefix and fix some message spellings.
Also make the meaning of some messages more clear.
Tested-by: Baoquan He <bhe@...hat.com>
Signed-off-by: Joerg Roedel <jroedel@...e.de>
---
drivers/iommu/dmar.c | 26 ++++++++++-----------
drivers/iommu/intel-iommu.c | 46 ++++++++++++++++++-------------------
drivers/iommu/intel_irq_remapping.c | 22 ++++++++++--------
3 files changed, 47 insertions(+), 47 deletions(-)
diff --git a/drivers/iommu/dmar.c b/drivers/iommu/dmar.c
index 9847613..a2f50c5 100644
--- a/drivers/iommu/dmar.c
+++ b/drivers/iommu/dmar.c
@@ -26,7 +26,7 @@
* These routines are used by both DMA-remapping and Interrupt-remapping
*/
-#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt /* has to precede printk.h */
+#define pr_fmt(fmt) "DMAR: " fmt /* has to precede printk.h */
#include <linux/pci.h>
#include <linux/dmar.h>
@@ -555,7 +555,7 @@ static int dmar_walk_remapping_entries(struct acpi_dmar_header *start,
break;
} else if (next > end) {
/* Avoid passing table end */
- pr_warn(FW_BUG "record passes table end\n");
+ pr_warn(FW_BUG "Record passes table end\n");
ret = -EINVAL;
break;
}
@@ -623,7 +623,7 @@ parse_dmar_table(void)
return -ENODEV;
if (dmar->width < PAGE_SHIFT - 1) {
- pr_warn("Invalid DMAR haw\n");
+ pr_warn("Invalid DMAR host address width\n");
return -EINVAL;
}
@@ -802,7 +802,7 @@ int __init dmar_table_init(void)
ret = parse_dmar_table();
if (ret < 0) {
if (ret != -ENODEV)
- pr_info("parse DMAR table failure.\n");
+ pr_info("DMAR table parse failure.\n");
} else if (list_empty(&dmar_drhd_units)) {
pr_info("No DMAR devices found\n");
ret = -ENODEV;
@@ -847,7 +847,7 @@ dmar_validate_one_drhd(struct acpi_dmar_header *entry, void *arg)
else
addr = early_ioremap(drhd->address, VTD_PAGE_SIZE);
if (!addr) {
- pr_warn("IOMMU: can't validate: %llx\n", drhd->address);
+ pr_warn("Can't validate DRHD address: %llx\n", drhd->address);
return -EINVAL;
}
@@ -921,14 +921,14 @@ static int map_iommu(struct intel_iommu *iommu, u64 phys_addr)
iommu->reg_size = VTD_PAGE_SIZE;
if (!request_mem_region(iommu->reg_phys, iommu->reg_size, iommu->name)) {
- pr_err("IOMMU: can't reserve memory\n");
+ pr_err("Can't reserve MMIO register region\n");
err = -EBUSY;
goto out;
}
iommu->reg = ioremap(iommu->reg_phys, iommu->reg_size);
if (!iommu->reg) {
- pr_err("IOMMU: can't map the region\n");
+ pr_err("Can't map MMIO registers\n");
err = -ENOMEM;
goto release;
}
@@ -952,13 +952,13 @@ static int map_iommu(struct intel_iommu *iommu, u64 phys_addr)
iommu->reg_size = map_size;
if (!request_mem_region(iommu->reg_phys, iommu->reg_size,
iommu->name)) {
- pr_err("IOMMU: can't reserve memory\n");
+ pr_err("Can't reserve MMIO register region\n");
err = -EBUSY;
goto out;
}
iommu->reg = ioremap(iommu->reg_phys, iommu->reg_size);
if (!iommu->reg) {
- pr_err("IOMMU: can't map the region\n");
+ pr_err("Can't map MMIO registers\n");
err = -ENOMEM;
goto release;
}
@@ -1014,14 +1014,14 @@ static int alloc_iommu(struct dmar_drhd_unit *drhd)
return -ENOMEM;
if (dmar_alloc_seq_id(iommu) < 0) {
- pr_err("IOMMU: failed to allocate seq_id\n");
+ pr_err("Failed to allocate seq_id\n");
err = -ENOSPC;
goto error;
}
err = map_iommu(iommu, drhd->reg_base_addr);
if (err) {
- pr_err("IOMMU: failed to map %s\n", iommu->name);
+ pr_err("Failed to map %s\n", iommu->name);
goto error_free_seq_id;
}
@@ -1644,7 +1644,7 @@ int dmar_set_interrupt(struct intel_iommu *iommu)
irq = dmar_alloc_hwirq();
if (irq <= 0) {
- pr_err("IOMMU: no free vectors\n");
+ pr_err("No free irq vectors\n");
return -EINVAL;
}
@@ -1661,7 +1661,7 @@ int dmar_set_interrupt(struct intel_iommu *iommu)
ret = request_irq(irq, dmar_fault, IRQF_NO_THREAD, iommu->name, iommu);
if (ret)
- pr_err("IOMMU: can't request irq\n");
+ pr_err("Can't request irq\n");
return ret;
}
diff --git a/drivers/iommu/intel-iommu.c b/drivers/iommu/intel-iommu.c
index 82239e3..49065a9 100644
--- a/drivers/iommu/intel-iommu.c
+++ b/drivers/iommu/intel-iommu.c
@@ -17,6 +17,8 @@
* Fenghua Yu <fenghua.yu@...el.com>
*/
+#define pr_fmt(fmt) "DMAR: " fmt
+
#include <linux/init.h>
#include <linux/bitmap.h>
#include <linux/debugfs.h>
@@ -1214,8 +1216,7 @@ static int iommu_alloc_root_entry(struct intel_iommu *iommu)
root = (struct root_entry *)alloc_pgtable_page(iommu->node);
if (!root) {
- pr_err("IOMMU: allocating root entry for %s failed\n",
- iommu->name);
+ pr_err("allocating root entry for %s failed\n", iommu->name);
return -ENOMEM;
}
@@ -1352,9 +1353,9 @@ static void __iommu_flush_iotlb(struct intel_iommu *iommu, u16 did,
/* check IOTLB invalidation granularity */
if (DMA_TLB_IAIG(val) == 0)
- printk(KERN_ERR"IOMMU: flush IOTLB failed\n");
+ pr_err("flush IOTLB failed\n");
if (DMA_TLB_IAIG(val) != DMA_TLB_IIRG(type))
- pr_debug("IOMMU: tlb flush request %Lx, actual %Lx\n",
+ pr_debug("tlb flush request %Lx, actual %Lx\n",
(unsigned long long)DMA_TLB_IIRG(type),
(unsigned long long)DMA_TLB_IAIG(val));
}
@@ -1525,7 +1526,7 @@ static int iommu_init_domains(struct intel_iommu *iommu)
unsigned long nlongs;
ndomains = cap_ndoms(iommu->cap);
- pr_debug("IOMMU%d: Number of Domains supported <%ld>\n",
+ pr_debug("Number of Domains supported iommu[%d] <%ld>\n",
iommu->seq_id, ndomains);
nlongs = BITS_TO_LONGS(ndomains);
@@ -1536,14 +1537,14 @@ static int iommu_init_domains(struct intel_iommu *iommu)
*/
iommu->domain_ids = kcalloc(nlongs, sizeof(unsigned long), GFP_KERNEL);
if (!iommu->domain_ids) {
- pr_err("IOMMU%d: allocating domain id array failed\n",
+ pr_err("Allocating domain id array for iommu[%d] failed\n",
iommu->seq_id);
return -ENOMEM;
}
iommu->domains = kcalloc(ndomains, sizeof(struct dmar_domain *),
GFP_KERNEL);
if (!iommu->domains) {
- pr_err("IOMMU%d: allocating domain array failed\n",
+ pr_err("Allocating domain array for iommu[%d] failed\n",
iommu->seq_id);
kfree(iommu->domain_ids);
iommu->domain_ids = NULL;
@@ -1649,7 +1650,7 @@ static int iommu_attach_domain(struct dmar_domain *domain,
num = __iommu_attach_domain(domain, iommu);
spin_unlock_irqrestore(&iommu->lock, flags);
if (num < 0)
- pr_err("IOMMU: no free domain ids\n");
+ pr_err("No free domain ids\n");
return num;
}
@@ -1814,7 +1815,7 @@ static int domain_init(struct dmar_domain *domain, int guest_width)
sagaw = cap_sagaw(iommu->cap);
if (!test_bit(agaw, &sagaw)) {
/* hardware doesn't support it, choose a bigger one */
- pr_debug("IOMMU: hardware doesn't support agaw %d\n", agaw);
+ pr_debug("Hardware doesn't support agaw %d\n", agaw);
agaw = find_next_bit(&sagaw, 5, agaw);
if (agaw >= 5)
return -ENODEV;
@@ -1890,7 +1891,7 @@ static int domain_context_mapping_one(struct dmar_domain *domain,
struct device_domain_info *info = NULL;
pr_debug("Set context mapping for %02x:%02x.%d\n",
- bus, PCI_SLOT(devfn), PCI_FUNC(devfn));
+ bus, PCI_SLOT(devfn), PCI_FUNC(devfn));
BUG_ON(!domain->pgd);
BUG_ON(translation != CONTEXT_TT_PASS_THROUGH &&
@@ -1915,7 +1916,7 @@ static int domain_context_mapping_one(struct dmar_domain *domain,
id = iommu_attach_vm_domain(domain, iommu);
if (id < 0) {
spin_unlock_irqrestore(&iommu->lock, flags);
- pr_err("IOMMU: no free domain ids\n");
+ pr_err("No free domain ids\n");
return -EFAULT;
}
}
@@ -2564,7 +2565,7 @@ static int __init si_domain_init(int hw)
return -EFAULT;
}
- pr_debug("IOMMU: identity mapping domain is domain %d\n",
+ pr_debug("Identity mapping domain is domain %d\n",
si_domain->id);
if (hw)
@@ -2764,7 +2765,7 @@ static int __init dev_prepare_static_identity_mapping(struct device *dev, int hw
hw ? CONTEXT_TT_PASS_THROUGH :
CONTEXT_TT_MULTI_LEVEL);
if (!ret)
- pr_info("IOMMU: %s identity mapping for device %s\n",
+ pr_info("%s identity mapping for device %s\n",
hw ? "hardware" : "software", dev_name(dev));
else if (ret == -ENODEV)
/* device not associated with an iommu */
@@ -2842,12 +2843,11 @@ static void intel_iommu_init_qi(struct intel_iommu *iommu)
*/
iommu->flush.flush_context = __iommu_flush_context;
iommu->flush.flush_iotlb = __iommu_flush_iotlb;
- pr_info("IOMMU: %s using Register based invalidation\n",
- iommu->name);
+ pr_info("%s using Register based invalidation\n", iommu->name);
} else {
iommu->flush.flush_context = qi_flush_context;
iommu->flush.flush_iotlb = qi_flush_iotlb;
- pr_info("IOMMU: %s using Queued invalidation\n", iommu->name);
+ pr_info("%s using Queued invalidation\n", iommu->name);
}
}
@@ -3982,20 +3982,18 @@ static int intel_iommu_add(struct dmar_drhd_unit *dmaru)
return 0;
if (hw_pass_through && !ecap_pass_through(iommu->ecap)) {
- pr_warn("IOMMU: %s doesn't support hardware pass through.\n",
+ pr_warn("%s doesn't support hardware pass through.\n",
iommu->name);
return -ENXIO;
}
if (!ecap_sc_support(iommu->ecap) &&
domain_update_iommu_snooping(iommu)) {
- pr_warn("IOMMU: %s doesn't support snooping.\n",
- iommu->name);
+ pr_warn("%s doesn't support snooping.\n", iommu->name);
return -ENXIO;
}
sp = domain_update_iommu_superpage(iommu) - 1;
if (sp >= 0 && !(cap_super_page_val(iommu->cap) & (1 << sp))) {
- pr_warn("IOMMU: %s doesn't support large page.\n",
- iommu->name);
+ pr_warn("%s doesn't support large page.\n", iommu->name);
return -ENXIO;
}
@@ -4225,7 +4223,7 @@ static int intel_iommu_memory_notifier(struct notifier_block *nb,
start = mhp->start_pfn << PAGE_SHIFT;
end = ((mhp->start_pfn + mhp->nr_pages) << PAGE_SHIFT) - 1;
if (iommu_domain_identity_map(si_domain, start, end)) {
- pr_warn("dmar: failed to build identity map for [%llx-%llx]\n",
+ pr_warn("Failed to build identity map for [%llx-%llx]\n",
start, end);
return NOTIFY_BAD;
}
@@ -4243,7 +4241,7 @@ static int intel_iommu_memory_notifier(struct notifier_block *nb,
iova = find_iova(&si_domain->iovad, start_vpfn);
if (iova == NULL) {
- pr_debug("dmar: failed get IOVA for PFN %lx\n",
+ pr_debug("Failed get IOVA for PFN %lx\n",
start_vpfn);
break;
}
@@ -4251,7 +4249,7 @@ static int intel_iommu_memory_notifier(struct notifier_block *nb,
iova = split_and_remove_iova(&si_domain->iovad, iova,
start_vpfn, last_vpfn);
if (iova == NULL) {
- pr_warn("dmar: failed to split IOVA PFN [%lx-%lx]\n",
+ pr_warn("Failed to split IOVA PFN [%lx-%lx]\n",
start_vpfn, last_vpfn);
return NOTIFY_BAD;
}
diff --git a/drivers/iommu/intel_irq_remapping.c b/drivers/iommu/intel_irq_remapping.c
index c3f0686..34667d5 100644
--- a/drivers/iommu/intel_irq_remapping.c
+++ b/drivers/iommu/intel_irq_remapping.c
@@ -1,3 +1,6 @@
+
+#define pr_fmt(fmt) "DMAR-IR: " fmt
+
#include <linux/interrupt.h>
#include <linux/dmar.h>
#include <linux/spinlock.h>
@@ -105,8 +108,7 @@ static int alloc_irte(struct intel_iommu *iommu, int irq, u16 count)
}
if (mask > ecap_max_handle_mask(iommu->ecap)) {
- printk(KERN_ERR
- "Requested mask %x exceeds the max invalidation handle"
+ pr_err("Requested mask %x exceeds the max invalidation handle"
" mask value %Lx\n", mask,
ecap_max_handle_mask(iommu->ecap));
return -1;
@@ -116,7 +118,7 @@ static int alloc_irte(struct intel_iommu *iommu, int irq, u16 count)
index = bitmap_find_free_region(table->bitmap,
INTR_REMAP_TABLE_ENTRIES, mask);
if (index < 0) {
- pr_warn("IR%d: can't allocate an IRTE\n", iommu->seq_id);
+ pr_warn("Can't allocate an IRTE for IR[%d]\n", iommu->seq_id);
} else {
cfg->remapped = 1;
irq_iommu->iommu = iommu;
@@ -345,7 +347,7 @@ static int set_ioapic_sid(struct irte *irte, int apic)
up_read(&dmar_global_lock);
if (sid == 0) {
- pr_warning("Failed to set source-id of IOAPIC (%d)\n", apic);
+ pr_warn("Failed to set source-id of IOAPIC (%d)\n", apic);
return -1;
}
@@ -372,7 +374,7 @@ static int set_hpet_sid(struct irte *irte, u8 id)
up_read(&dmar_global_lock);
if (sid == 0) {
- pr_warning("Failed to set source-id of HPET block (%d)\n", id);
+ pr_warn("Failed to set source-id of HPET block (%d)\n", id);
return -1;
}
@@ -502,15 +504,15 @@ static int intel_setup_irq_remapping(struct intel_iommu *iommu)
INTR_REMAP_PAGE_ORDER);
if (!pages) {
- pr_err("IR%d: failed to allocate pages of order %d\n",
- iommu->seq_id, INTR_REMAP_PAGE_ORDER);
+ pr_err("Failed to allocate pages of order %d for IR[%d]\n",
+ INTR_REMAP_PAGE_ORDER, iommu->seq_id);
goto out_free_table;
}
bitmap = kcalloc(BITS_TO_LONGS(INTR_REMAP_TABLE_ENTRIES),
sizeof(long), GFP_ATOMIC);
if (bitmap == NULL) {
- pr_err("IR%d: failed to allocate bitmap\n", iommu->seq_id);
+ pr_err("Failed to allocate bitmap for IR[%d]\n", iommu->seq_id);
goto out_free_pages;
}
@@ -592,7 +594,7 @@ static void __init intel_cleanup_irq_remapping(void)
}
if (x2apic_supported())
- pr_warn("Failed to enable irq remapping. You are vulnerable to irq-injection attacks.\n");
+ pr_warn("Failed to enable irq remapping. You are vulnerable to irq-injection attacks.\n");
}
static int __init intel_prepare_irq_remapping(void)
@@ -1385,7 +1387,7 @@ static void iommu_check_pre_ir_status(struct intel_iommu *iommu)
sts = readl(iommu->reg + DMAR_GSTS_REG);
if (sts & DMA_GSTS_IRES) {
- pr_info("IR is enabled prior to OS.\n");
+ pr_info("IRQ remapping is enabled prior to OS.\n");
iommu->pre_enabled_ir = 1;
}
}
--
1.9.1
--
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