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Message-ID: <tip-b1855c752e67d1125d41fadb499014b49a245db8@git.kernel.org>
Date: Fri, 24 Apr 2015 08:48:40 -0700
From: tip-bot for Jiang Liu <tipbot@...or.com>
To: linux-tip-commits@...r.kernel.org
Cc: rdunlap@...radead.org, tglx@...utronix.de,
jiang.liu@...ux.intel.com, bp@...en8.de, bhelgaas@...gle.com,
rjw@...ysocki.net, david.vrabel@...rix.com, tony.luck@...el.com,
linux@...elenboom.it, hpa@...or.com, sivanich@....com,
david.a.cohen@...ux.intel.com, linux-kernel@...r.kernel.org,
konrad.wilk@...cle.com, wangyijing@...wei.com, mingo@...nel.org,
yinghai@...nel.org, joro@...tes.org, gregkh@...uxfoundation.org,
benh@...nel.crashing.org
Subject: [tip:x86/apic] x86/MSI:
Clean up unused MSI related code and interfaces
Commit-ID: b1855c752e67d1125d41fadb499014b49a245db8
Gitweb: http://git.kernel.org/tip/b1855c752e67d1125d41fadb499014b49a245db8
Author: Jiang Liu <jiang.liu@...ux.intel.com>
AuthorDate: Mon, 13 Apr 2015 14:11:40 +0800
Committer: Thomas Gleixner <tglx@...utronix.de>
CommitDate: Fri, 24 Apr 2015 15:36:49 +0200
x86/MSI: Clean up unused MSI related code and interfaces
Now MSI interrupt has been converted to new hierarchical irqdomain
interfaces, so remove legacy MSI related code and interfaces.
Signed-off-by: Jiang Liu <jiang.liu@...ux.intel.com>
Cc: Konrad Rzeszutek Wilk <konrad.wilk@...cle.com>
Cc: David Cohen <david.a.cohen@...ux.intel.com>
Cc: Sander Eikelenboom <linux@...elenboom.it>
Cc: David Vrabel <david.vrabel@...rix.com>
Cc: Tony Luck <tony.luck@...el.com>
Cc: Joerg Roedel <joro@...tes.org>
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc: Bjorn Helgaas <bhelgaas@...gle.com>
Cc: Benjamin Herrenschmidt <benh@...nel.crashing.org>
Cc: Rafael J. Wysocki <rjw@...ysocki.net>
Cc: Randy Dunlap <rdunlap@...radead.org>
Cc: Yinghai Lu <yinghai@...nel.org>
Cc: Borislav Petkov <bp@...en8.de>
Cc: Dimitri Sivanich <sivanich@....com>
Cc: Yijing Wang <wangyijing@...wei.com>
Link: http://lkml.kernel.org/r/1428905519-23704-19-git-send-email-jiang.liu@linux.intel.com
Signed-off-by: Thomas Gleixner <tglx@...utronix.de>
---
arch/x86/include/asm/hpet.h | 9 -------
arch/x86/include/asm/x86_init.h | 4 ---
arch/x86/kernel/apic/msi.c | 55 +++--------------------------------------
3 files changed, 4 insertions(+), 64 deletions(-)
diff --git a/arch/x86/include/asm/hpet.h b/arch/x86/include/asm/hpet.h
index e87e9fa..5fa9fb0 100644
--- a/arch/x86/include/asm/hpet.h
+++ b/arch/x86/include/asm/hpet.h
@@ -85,15 +85,6 @@ extern struct irq_domain *hpet_create_irq_domain(int hpet_id);
extern int hpet_assign_irq(struct irq_domain *domain,
struct hpet_dev *dev, int dev_num);
-#ifdef CONFIG_PCI_MSI
-extern int default_setup_hpet_msi(unsigned int irq, unsigned int id);
-#else
-static inline int default_setup_hpet_msi(unsigned int irq, unsigned int id)
-{
- return -EINVAL;
-}
-#endif
-
#ifdef CONFIG_HPET_EMULATE_RTC
#include <linux/interrupt.h>
diff --git a/arch/x86/include/asm/x86_init.h b/arch/x86/include/asm/x86_init.h
index f58a9c7..1649bb9 100644
--- a/arch/x86/include/asm/x86_init.h
+++ b/arch/x86/include/asm/x86_init.h
@@ -175,13 +175,9 @@ struct msi_msg;
struct x86_msi_ops {
int (*setup_msi_irqs)(struct pci_dev *dev, int nvec, int type);
- void (*compose_msi_msg)(struct pci_dev *dev, unsigned int irq,
- unsigned int dest, struct msi_msg *msg,
- u8 hpet_id);
void (*teardown_msi_irq)(unsigned int irq);
void (*teardown_msi_irqs)(struct pci_dev *dev);
void (*restore_msi_irqs)(struct pci_dev *dev);
- int (*setup_hpet_msi)(unsigned int irq, unsigned int id);
};
struct IO_APIC_route_entry;
diff --git a/arch/x86/kernel/apic/msi.c b/arch/x86/kernel/apic/msi.c
index 9adb871..9fe7a08 100644
--- a/arch/x86/kernel/apic/msi.c
+++ b/arch/x86/kernel/apic/msi.c
@@ -25,16 +25,12 @@
static struct irq_domain *msi_default_domain;
-void native_compose_msi_msg(struct pci_dev *pdev,
- unsigned int irq, unsigned int dest,
- struct msi_msg *msg, u8 hpet_id)
+static void native_compose_msi_msg(struct irq_cfg *cfg, struct msi_msg *msg)
{
- struct irq_cfg *cfg = irq_cfg(irq);
-
msg->address_hi = MSI_ADDR_BASE_HI;
if (x2apic_enabled())
- msg->address_hi |= MSI_ADDR_EXT_DEST_ID(dest);
+ msg->address_hi |= MSI_ADDR_EXT_DEST_ID(cfg->dest_apicid);
msg->address_lo =
MSI_ADDR_BASE_LO |
@@ -44,7 +40,7 @@ void native_compose_msi_msg(struct pci_dev *pdev,
((apic->irq_delivery_mode != dest_LowestPrio) ?
MSI_ADDR_REDIRECTION_CPU :
MSI_ADDR_REDIRECTION_LOWPRI) |
- MSI_ADDR_DEST_ID(dest);
+ MSI_ADDR_DEST_ID(cfg->dest_apicid);
msg->data =
MSI_DATA_TRIGGER_EDGE |
@@ -93,31 +89,6 @@ static void msi_update_msg(struct msi_msg *msg, struct irq_data *irq_data)
msg->address_lo |= MSI_ADDR_DEST_ID(cfg->dest_apicid);
}
-static int msi_compose_msg(struct pci_dev *pdev, unsigned int irq,
- struct msi_msg *msg, u8 hpet_id)
-{
- struct irq_cfg *cfg;
- int err;
- unsigned dest;
-
- if (disable_apic)
- return -ENXIO;
-
- cfg = irq_cfg(irq);
- err = assign_irq_vector(irq, cfg, apic->target_cpus());
- if (err)
- return err;
-
- err = apic->cpu_mask_to_apicid_and(cfg->domain,
- apic->target_cpus(), &dest);
- if (err)
- return err;
-
- x86_msi.compose_msi_msg(pdev, irq, dest, msg, hpet_id);
-
- return 0;
-}
-
/*
* IRQ Chip for MSI PCI/PCI-X/PCI-Express Devices,
* which implement the MSI or MSI-X Capability Structure.
@@ -262,7 +233,7 @@ int arch_setup_dmar_msi(unsigned int irq)
struct msi_msg msg;
struct irq_cfg *cfg = irq_cfg(irq);
- native_compose_msi_msg(NULL, irq, cfg->dest_apicid, &msg, -1);
+ native_compose_msi_msg(cfg, &msg);
dmar_msi_write(irq, &msg);
irq_set_chip_and_handler_name(irq, &dmar_msi_type, handle_edge_irq,
"edge");
@@ -318,24 +289,6 @@ static struct irq_chip hpet_msi_controller = {
.flags = IRQCHIP_SKIP_SET_WAKE,
};
-int default_setup_hpet_msi(unsigned int irq, unsigned int id)
-{
- struct irq_chip *chip = &hpet_msi_controller;
- struct msi_msg msg;
- int ret;
-
- ret = msi_compose_msg(NULL, irq, &msg, id);
- if (ret < 0)
- return ret;
-
- hpet_msi_write(irq_get_handler_data(irq), &msg);
- irq_set_status_flags(irq, IRQ_MOVE_PCNTXT);
- setup_remapped_irq(irq, irq_cfg(irq), chip);
-
- irq_set_chip_and_handler_name(irq, chip, handle_edge_irq, "edge");
- return 0;
-}
-
static int hpet_domain_alloc(struct irq_domain *domain, unsigned int virq,
unsigned int nr_irqs, void *arg)
{
--
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