mirror of
https://github.com/openwrt/openwrt.git
synced 2024-12-20 14:13:16 +00:00
1343acc8cd
Deleted (upstreamed): bcm27xx/patches-5.10/950-0669-drm-vc4-hdmi-Make-sure-the-device-is-powered-with-CE.patch [1] bcm27xx/patches-5.10/950-0672-drm-vc4-hdmi-Move-initial-register-read-after-pm_run.patch [1] gemini/patches-5.10/0003-ARM-dts-gemini-NAS4220-B-fis-index-block-with-128-Ki.patch [2] Manually rebased: bcm27xx/patches-5.10/950-0675-drm-vc4-hdmi-Drop-devm-interrupt-handler-for-CEC-int.patch Manually reverted: generic/pending-5.10/860-Revert-ASoC-mediatek-Check-for-error-clk-pointer.patch [3] [1] https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=v5.10.94&id=55b10b88ac8654fc2f31518aa349a2e643b37f18 [2] https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=v5.10.94&id=958a8819d41420d7a74ed922a09cacc0ba3a4218 [3] https://lore.kernel.org/all/trinity-2a727d96-0335-4d03-8f30-e22a0e10112d-1643363480085@3c-app-gmx-bap33/ Signed-off-by: Rui Salvaterra <rsalvaterra@gmail.com> Signed-off-by: Daniel Golle <daniel@makrotopia.org>
73 lines
2.6 KiB
Diff
73 lines
2.6 KiB
Diff
From bb03b126ea6c9e57177b537dd022246fa5dbef16 Mon Sep 17 00:00:00 2001
|
|
From: =?UTF-8?q?Pali=20Roh=C3=A1r?= <pali@kernel.org>
|
|
Date: Fri, 12 Feb 2021 16:24:07 +0100
|
|
Subject: [PATCH] PCI: aardvark: Fix support for MSI interrupts
|
|
MIME-Version: 1.0
|
|
Content-Type: text/plain; charset=UTF-8
|
|
Content-Transfer-Encoding: 8bit
|
|
|
|
Aardvark hardware supports Multi-MSI and MSI_FLAG_MULTI_PCI_MSI is already
|
|
set for the MSI chip. But when allocating MSI interrupt numbers for
|
|
Multi-MSI, the numbers need to be properly aligned, otherwise endpoint
|
|
devices send MSI interrupt with incorrect numbers.
|
|
|
|
Fix this issue by using function bitmap_find_free_region() instead of
|
|
bitmap_find_next_zero_area().
|
|
|
|
To ensure that aligned MSI interrupt numbers are used by endpoint devices,
|
|
we cannot use Linux virtual irq numbers (as they are random and not
|
|
properly aligned). Instead we need to use the aligned hwirq numbers.
|
|
|
|
This change fixes receiving MSI interrupts on Armada 3720 boards and
|
|
allows using NVMe disks which use Multi-MSI feature with 3 interrupts.
|
|
|
|
Without this NVMe disks freeze booting as linux nvme-core.c is waiting
|
|
60s for an interrupt.
|
|
|
|
Signed-off-by: Pali Rohár <pali@kernel.org>
|
|
Signed-off-by: Marek Behún <kabel@kernel.org>
|
|
---
|
|
drivers/pci/controller/pci-aardvark.c | 16 ++++++----------
|
|
1 file changed, 6 insertions(+), 10 deletions(-)
|
|
|
|
--- a/drivers/pci/controller/pci-aardvark.c
|
|
+++ b/drivers/pci/controller/pci-aardvark.c
|
|
@@ -1189,7 +1189,7 @@ static void advk_msi_irq_compose_msi_msg
|
|
|
|
msg->address_lo = lower_32_bits(msi_msg);
|
|
msg->address_hi = upper_32_bits(msi_msg);
|
|
- msg->data = data->irq;
|
|
+ msg->data = data->hwirq;
|
|
}
|
|
|
|
static int advk_msi_set_affinity(struct irq_data *irq_data,
|
|
@@ -1206,15 +1206,11 @@ static int advk_msi_irq_domain_alloc(str
|
|
int hwirq, i;
|
|
|
|
mutex_lock(&pcie->msi_used_lock);
|
|
- hwirq = bitmap_find_next_zero_area(pcie->msi_used, MSI_IRQ_NUM,
|
|
- 0, nr_irqs, 0);
|
|
- if (hwirq >= MSI_IRQ_NUM) {
|
|
- mutex_unlock(&pcie->msi_used_lock);
|
|
- return -ENOSPC;
|
|
- }
|
|
-
|
|
- bitmap_set(pcie->msi_used, hwirq, nr_irqs);
|
|
+ hwirq = bitmap_find_free_region(pcie->msi_used, MSI_IRQ_NUM,
|
|
+ order_base_2(nr_irqs));
|
|
mutex_unlock(&pcie->msi_used_lock);
|
|
+ if (hwirq < 0)
|
|
+ return -ENOSPC;
|
|
|
|
for (i = 0; i < nr_irqs; i++)
|
|
irq_domain_set_info(domain, virq + i, hwirq + i,
|
|
@@ -1232,7 +1228,7 @@ static void advk_msi_irq_domain_free(str
|
|
struct advk_pcie *pcie = domain->host_data;
|
|
|
|
mutex_lock(&pcie->msi_used_lock);
|
|
- bitmap_clear(pcie->msi_used, d->hwirq, nr_irqs);
|
|
+ bitmap_release_region(pcie->msi_used, d->hwirq, order_base_2(nr_irqs));
|
|
mutex_unlock(&pcie->msi_used_lock);
|
|
}
|
|
|