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From: Tomasz Nowicki <tn@semihalf.com>
To: helgaas@kernel.org, arnd@arndb.de, will.deacon@arm.com,
	catalin.marinas@arm.com, rafael@kernel.org,
	Lorenzo.Pieralisi@arm.com
Cc: hanjun.guo@linaro.org, okaya@codeaurora.org,
	jchandra@broadcom.com, cov@codeaurora.org, dhdang@apm.com,
	ard.biesheuvel@linaro.org, robert.richter@caviumnetworks.com,
	mw@semihalf.com, Liviu.Dudau@arm.com, ddaney@caviumnetworks.com,
	wangyijing@huawei.com, msalter@redhat.com,
	linux-pci@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
	linaro-acpi@lists.linaro.org, jcm@redhat.com,
	andrea.gallo@linaro.org, jeremy.linton@arm.com,
	liudongdong3@huawei.com, gabriele.paoloni@huawei.com,
	jhugo@codeaurora.org, Tomasz Nowicki <tn@semihalf.com>
Subject: [RFC PATCH V5 4/5] ARM64/PCI: Start using quirks handling for ACPI based PCI host controller
Date: Mon,  8 Aug 2016 14:56:41 +0200	[thread overview]
Message-ID: <1470661002-26213-5-git-send-email-tn@semihalf.com> (raw)
In-Reply-To: <1470661002-26213-1-git-send-email-tn@semihalf.com>

Since there are platforms which have non-compliant ECAM space we need to
override these accessors prior to PCI buses enumeration. In order to do
that we call pci_mcfg_match_quirks() to retrieve custom
pci_config_window structure. If no correlated quirk on list, use
fully ECAM compliant generic PCI config accessors.

Signed-off-by: Tomasz Nowicki <tn@semihalf.com>
---
 arch/arm64/kernel/pci.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/arch/arm64/kernel/pci.c b/arch/arm64/kernel/pci.c
index 2e7bed4..aa734bd 100644
--- a/arch/arm64/kernel/pci.c
+++ b/arch/arm64/kernel/pci.c
@@ -139,8 +139,7 @@ struct pci_bus *pci_acpi_scan_root(struct acpi_pci_root *root)
 	if (!ri)
 		return NULL;
 
-	ri->cfg = pci_acpi_setup_ecam_mapping(root,
-					      &pci_generic_ecam_ops.pci_ops);
+	ri->cfg = pci_mcfg_match_quirks(root);
 	if (!ri->cfg) {
 		kfree(ri);
 		return NULL;
-- 
1.9.1

  parent reply	other threads:[~2016-08-08 12:56 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-08-08 12:56 [RFC PATCH V5 0/5] ECAM quirks handling for ARM64 platforms Tomasz Nowicki
2016-08-08 12:56 ` [RFC PATCH V5 1/5] PCI: Embed pci_ecam_ops in pci_config_window structure Tomasz Nowicki
2016-08-08 12:56 ` [RFC PATCH V5 2/5] PCI/ACPI: Move ACPI ECAM mapping to generic MCFG driver Tomasz Nowicki
2016-08-08 12:56 ` [RFC PATCH V5 3/5] PCI: Check platform specific ECAM quirks Tomasz Nowicki
2016-08-08 12:56 ` Tomasz Nowicki [this message]
2016-08-08 12:56 ` [RFC PATCH V5 5/5] PCI: thunder-pem: Support quirky configuration space access for ACPI based PCI host controller Tomasz Nowicki
2016-08-08 13:02 ` [RFC PATCH V5 0/5] ECAM quirks handling for ARM64 platforms Tomasz Nowicki
2016-08-30 21:20 ` Duc Dang
2016-08-31 12:10   ` Tomasz Nowicki
  -- strict thread matches above, loose matches on Subject: below --
2016-08-08 13:05 Tomasz Nowicki
2016-08-08 13:05 ` [RFC PATCH V5 4/5] ARM64/PCI: Start using quirks handling for ACPI based PCI host controller Tomasz Nowicki
2016-09-05  2:27   ` Bjorn Helgaas

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