From: Marc Zyngier <maz@kernel.org>
To: linux-kernel@vger.kernel.org
Cc: "Thomas Gleixner" <tglx@linutronix.de>,
"Michael Ellerman" <mpe@ellerman.id.au>,
"Benjamin Herrenschmidt" <benh@kernel.crashing.org>,
"Paul Mackerras" <paulus@samba.org>,
"Ley Foon Tan" <ley.foon.tan@intel.com>,
"Chris Zankel" <chris@zankel.net>,
"Max Filippov" <jcmvbkbc@gmail.com>,
"Vineet Gupta" <vgupta@synopsys.com>,
"Thomas Bogendoerfer" <tsbogend@alpha.franken.de>,
"Robert Jarzmik" <robert.jarzmik@free.fr>,
"Russell King" <linux@armlinux.org.uk>,
"Krzysztof Kozlowski" <krzysztof.kozlowski@canonical.com>,
"Yoshinori Sato" <ysato@users.sourceforge.jp>,
"Rich Felker" <dalias@libc.org>,
"Geert Uytterhoeven" <geert@linux-m68k.org>,
"Alex Deucher" <alexander.deucher@amd.com>,
"Christian König" <christian.koenig@amd.com>,
"David Airlie" <airlied@linux.ie>,
"Daniel Vetter" <daniel@ffwll.ch>,
"Rob Clark" <robdclark@gmail.com>,
"Linus Walleij" <linus.walleij@linaro.org>,
"Lee Jones" <lee.jones@linaro.org>,
"Lorenzo Pieralisi" <lorenzo.pieralisi@arm.com>,
"Rob Herring" <robh@kernel.org>,
"Bjorn Helgaas" <bhelgaas@google.com>,
"Bartosz Golaszewski" <bgolaszewski@baylibre.com>,
kernel-team@android.com
Subject: [PATCH v2 08/14] mips: Bulk conversion to generic_handle_domain_irq()
Date: Mon, 2 Aug 2021 17:26:24 +0100 [thread overview]
Message-ID: <20210802162630.2219813-9-maz@kernel.org> (raw)
In-Reply-To: <20210802162630.2219813-1-maz@kernel.org>
Wherever possible, replace constructs that match either
generic_handle_irq(irq_find_mapping()) or
generic_handle_irq(irq_linear_revmap()) to a single call to
generic_handle_domain_irq().
Signed-off-by: Marc Zyngier <maz@kernel.org>
---
arch/mips/ath25/ar2315.c | 14 +++++++-------
arch/mips/ath25/ar5312.c | 13 ++++++-------
arch/mips/lantiq/irq.c | 2 +-
arch/mips/pci/pci-ar2315.c | 8 +++-----
arch/mips/pci/pci-rt3883.c | 5 ++---
arch/mips/ralink/irq.c | 2 +-
arch/mips/sgi-ip27/ip27-irq.c | 16 ++++++----------
arch/mips/sgi-ip30/ip30-irq.c | 8 +++-----
8 files changed, 29 insertions(+), 39 deletions(-)
diff --git a/arch/mips/ath25/ar2315.c b/arch/mips/ath25/ar2315.c
index 9dbed7b5ea76..76e43a73ba1b 100644
--- a/arch/mips/ath25/ar2315.c
+++ b/arch/mips/ath25/ar2315.c
@@ -69,24 +69,24 @@ static void ar2315_misc_irq_handler(struct irq_desc *desc)
{
u32 pending = ar2315_rst_reg_read(AR2315_ISR) &
ar2315_rst_reg_read(AR2315_IMR);
- unsigned nr, misc_irq = 0;
+ unsigned nr;
+ int ret = 0;
if (pending) {
struct irq_domain *domain = irq_desc_get_handler_data(desc);
nr = __ffs(pending);
- misc_irq = irq_find_mapping(domain, nr);
- }
- if (misc_irq) {
if (nr == AR2315_MISC_IRQ_GPIO)
ar2315_rst_reg_write(AR2315_ISR, AR2315_ISR_GPIO);
else if (nr == AR2315_MISC_IRQ_WATCHDOG)
ar2315_rst_reg_write(AR2315_ISR, AR2315_ISR_WD);
- generic_handle_irq(misc_irq);
- } else {
- spurious_interrupt();
+
+ ret = generic_handle_domain_irq(domain, nr);
}
+
+ if (!pending || ret)
+ spurious_interrupt();
}
static void ar2315_misc_irq_unmask(struct irq_data *d)
diff --git a/arch/mips/ath25/ar5312.c b/arch/mips/ath25/ar5312.c
index 23c879f4b734..822b639dbd1e 100644
--- a/arch/mips/ath25/ar5312.c
+++ b/arch/mips/ath25/ar5312.c
@@ -73,22 +73,21 @@ static void ar5312_misc_irq_handler(struct irq_desc *desc)
{
u32 pending = ar5312_rst_reg_read(AR5312_ISR) &
ar5312_rst_reg_read(AR5312_IMR);
- unsigned nr, misc_irq = 0;
+ unsigned nr;
+ int ret = 0;
if (pending) {
struct irq_domain *domain = irq_desc_get_handler_data(desc);
nr = __ffs(pending);
- misc_irq = irq_find_mapping(domain, nr);
- }
- if (misc_irq) {
- generic_handle_irq(misc_irq);
+ ret = generic_handle_domain_irq(domain, nr);
if (nr == AR5312_MISC_IRQ_TIMER)
ar5312_rst_reg_read(AR5312_TIMER);
- } else {
- spurious_interrupt();
}
+
+ if (!pending || ret)
+ spurious_interrupt();
}
/* Enable the specified AR5312_MISC_IRQ interrupt */
diff --git a/arch/mips/lantiq/irq.c b/arch/mips/lantiq/irq.c
index acfbdc01b0ac..b732495f138a 100644
--- a/arch/mips/lantiq/irq.c
+++ b/arch/mips/lantiq/irq.c
@@ -300,7 +300,7 @@ static void ltq_hw_irq_handler(struct irq_desc *desc)
*/
irq = __fls(irq);
hwirq = irq + MIPS_CPU_IRQ_CASCADE + (INT_NUM_IM_OFFSET * module);
- generic_handle_irq(irq_linear_revmap(ltq_domain, hwirq));
+ generic_handle_domain_irq(ltq_domain, hwirq);
/* if this is a EBU irq, we need to ack it or get a deadlock */
if (irq == LTQ_ICU_EBU_IRQ && !module && LTQ_EBU_PCC_ISTAT != 0)
diff --git a/arch/mips/pci/pci-ar2315.c b/arch/mips/pci/pci-ar2315.c
index c1a655aee599..9a4bfb4e63e3 100644
--- a/arch/mips/pci/pci-ar2315.c
+++ b/arch/mips/pci/pci-ar2315.c
@@ -337,14 +337,12 @@ static void ar2315_pci_irq_handler(struct irq_desc *desc)
struct ar2315_pci_ctrl *apc = irq_desc_get_handler_data(desc);
u32 pending = ar2315_pci_reg_read(apc, AR2315_PCI_ISR) &
ar2315_pci_reg_read(apc, AR2315_PCI_IMR);
- unsigned pci_irq = 0;
+ int ret = 0;
if (pending)
- pci_irq = irq_find_mapping(apc->domain, __ffs(pending));
+ ret = generic_handle_domain_irq(apc->domain, __ffs(pending));
- if (pci_irq)
- generic_handle_irq(pci_irq);
- else
+ if (!pending || ret)
spurious_interrupt();
}
diff --git a/arch/mips/pci/pci-rt3883.c b/arch/mips/pci/pci-rt3883.c
index c48e23cf5b5e..d3c947fa2969 100644
--- a/arch/mips/pci/pci-rt3883.c
+++ b/arch/mips/pci/pci-rt3883.c
@@ -140,10 +140,9 @@ static void rt3883_pci_irq_handler(struct irq_desc *desc)
}
while (pending) {
- unsigned irq, bit = __ffs(pending);
+ unsigned bit = __ffs(pending);
- irq = irq_find_mapping(rpc->irq_domain, bit);
- generic_handle_irq(irq);
+ generic_handle_domain_irq(rpc->irq_domain, bit);
pending &= ~BIT(bit);
}
diff --git a/arch/mips/ralink/irq.c b/arch/mips/ralink/irq.c
index 220ca0cd7945..fa353bc13947 100644
--- a/arch/mips/ralink/irq.c
+++ b/arch/mips/ralink/irq.c
@@ -100,7 +100,7 @@ static void ralink_intc_irq_handler(struct irq_desc *desc)
if (pending) {
struct irq_domain *domain = irq_desc_get_handler_data(desc);
- generic_handle_irq(irq_find_mapping(domain, __ffs(pending)));
+ generic_handle_domain_irq(domain, __ffs(pending));
} else {
spurious_interrupt();
}
diff --git a/arch/mips/sgi-ip27/ip27-irq.c b/arch/mips/sgi-ip27/ip27-irq.c
index 95c1bff1ab9f..a0dd3bd2b81b 100644
--- a/arch/mips/sgi-ip27/ip27-irq.c
+++ b/arch/mips/sgi-ip27/ip27-irq.c
@@ -190,7 +190,7 @@ static void ip27_do_irq_mask0(struct irq_desc *desc)
unsigned long *mask = per_cpu(irq_enable_mask, cpu);
struct irq_domain *domain;
u64 pend0;
- int irq;
+ int ret;
/* copied from Irix intpend0() */
pend0 = LOCAL_HUB_L(PI_INT_PEND0);
@@ -216,10 +216,8 @@ static void ip27_do_irq_mask0(struct irq_desc *desc)
#endif
{
domain = irq_desc_get_handler_data(desc);
- irq = irq_linear_revmap(domain, __ffs(pend0));
- if (irq)
- generic_handle_irq(irq);
- else
+ ret = generic_handle_domain_irq(domain, __ffs(pend0));
+ if (ret)
spurious_interrupt();
}
@@ -232,7 +230,7 @@ static void ip27_do_irq_mask1(struct irq_desc *desc)
unsigned long *mask = per_cpu(irq_enable_mask, cpu);
struct irq_domain *domain;
u64 pend1;
- int irq;
+ int ret;
/* copied from Irix intpend0() */
pend1 = LOCAL_HUB_L(PI_INT_PEND1);
@@ -242,10 +240,8 @@ static void ip27_do_irq_mask1(struct irq_desc *desc)
return;
domain = irq_desc_get_handler_data(desc);
- irq = irq_linear_revmap(domain, __ffs(pend1) + 64);
- if (irq)
- generic_handle_irq(irq);
- else
+ ret = generic_handle_domain_irq(domain, __ffs(pend1) + 64);
+ if (ret)
spurious_interrupt();
LOCAL_HUB_L(PI_INT_PEND1);
diff --git a/arch/mips/sgi-ip30/ip30-irq.c b/arch/mips/sgi-ip30/ip30-irq.c
index ba87704073c8..423c32cb66ed 100644
--- a/arch/mips/sgi-ip30/ip30-irq.c
+++ b/arch/mips/sgi-ip30/ip30-irq.c
@@ -99,7 +99,7 @@ static void ip30_normal_irq(struct irq_desc *desc)
int cpu = smp_processor_id();
struct irq_domain *domain;
u64 pend, mask;
- int irq;
+ int ret;
pend = heart_read(&heart_regs->isr);
mask = (heart_read(&heart_regs->imr[cpu]) &
@@ -130,10 +130,8 @@ static void ip30_normal_irq(struct irq_desc *desc)
#endif
{
domain = irq_desc_get_handler_data(desc);
- irq = irq_linear_revmap(domain, __ffs(pend));
- if (irq)
- generic_handle_irq(irq);
- else
+ ret = generic_handle_domain_irq(domain, __ffs(pend));
+ if (ret)
spurious_interrupt();
}
}
--
2.30.2
next prev parent reply other threads:[~2021-08-02 16:27 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-08-02 16:26 [PATCH v2 00/14][treewide] irqdomain: Simplify interrupt handling Marc Zyngier
2021-08-02 16:26 ` [PATCH v2 01/14] gpio: Bulk conversion to generic_handle_domain_irq() Marc Zyngier
2021-08-02 16:26 ` [PATCH v2 02/14] pinctrl: " Marc Zyngier
2021-08-02 16:26 ` [PATCH v2 03/14] PCI: " Marc Zyngier
2021-08-02 16:59 ` Bjorn Helgaas
2021-08-02 16:26 ` [PATCH v2 04/14] mfd: " Marc Zyngier
2021-08-02 16:26 ` [PATCH v2 05/14] gpu: " Marc Zyngier
2021-08-02 16:26 ` [PATCH v2 06/14] SH: " Marc Zyngier
2021-08-02 16:26 ` [PATCH v2 07/14] ARM: " Marc Zyngier
2021-08-02 16:26 ` Marc Zyngier [this message]
2021-08-05 9:10 ` [PATCH v2 08/14] mips: " Thomas Bogendoerfer
2021-08-02 16:26 ` [PATCH v2 09/14] arc: " Marc Zyngier
2021-08-02 16:26 ` [PATCH v2 10/14] xtensa: " Marc Zyngier
2021-08-02 16:26 ` [PATCH v2 11/14] nios2: " Marc Zyngier
2021-08-02 16:26 ` [PATCH v2 12/14] powerpc: " Marc Zyngier
2021-08-02 16:26 ` [PATCH v2 13/14] EDAC/altera: Convert " Marc Zyngier
2021-08-02 16:26 ` [PATCH v2 14/14] Documentation: Update irq_domain.rst with new lookup APIs Marc Zyngier
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