From: Kishon Vijay Abraham I <kishon@ti.com>
To: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>,
Bjorn Helgaas <bhelgaas@google.com>,
Gustavo Pimentel <gustavo.pimentel@synopsys.com>,
Alan Douglas <adouglas@cadence.com>,
Shawn Lin <shawn.lin@rock-chips.com>
Cc: Jingoo Han <jingoohan1@gmail.com>,
Heiko Stuebner <heiko@sntech.de>,
Cyrille Pitchen <cyrille.pitchen@free-electrons.com>,
Jia-Ju Bai <baijiaju1990@gmail.com>, <linux-omap@vger.kernel.org>,
<linux-pci@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
<linux-rockchip@lists.infradead.org>,
<linux-arm-kernel@lists.infradead.org>, <kishon@ti.com>
Subject: [PATCH 10/15] PCI: pci-epf-test: Do not allocate next BARs memory if current BAR is 64Bit
Date: Mon, 7 Jan 2019 12:11:43 +0530 [thread overview]
Message-ID: <20190107064148.10152-11-kishon@ti.com> (raw)
In-Reply-To: <20190107064148.10152-1-kishon@ti.com>
It's useless to allocate memory for next BAR if the current BAR is a
64Bit BAR. Stop allocating memory for the next BAR, if the current
BARs flag indicates this is a 64Bit BAR.
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
---
drivers/pci/endpoint/functions/pci-epf-test.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/drivers/pci/endpoint/functions/pci-epf-test.c b/drivers/pci/endpoint/functions/pci-epf-test.c
index 44cc31343a80..ade296180383 100644
--- a/drivers/pci/endpoint/functions/pci-epf-test.c
+++ b/drivers/pci/endpoint/functions/pci-epf-test.c
@@ -429,6 +429,7 @@ static int pci_epf_test_alloc_space(struct pci_epf *epf)
{
struct pci_epf_test *epf_test = epf_get_drvdata(epf);
struct device *dev = &epf->dev;
+ struct pci_epf_bar *epf_bar;
void *base;
int bar;
enum pci_barno test_reg_bar = epf_test->test_reg_bar;
@@ -442,6 +443,7 @@ static int pci_epf_test_alloc_space(struct pci_epf *epf)
epf_test->reg[test_reg_bar] = base;
for (bar = BAR_0; bar <= BAR_5; bar++) {
+ epf_bar = &epf->bar[bar];
if (bar == test_reg_bar)
continue;
base = pci_epf_alloc_space(epf, bar_size[bar], bar);
@@ -449,6 +451,8 @@ static int pci_epf_test_alloc_space(struct pci_epf *epf)
dev_err(dev, "Failed to allocate space for BAR%d\n",
bar);
epf_test->reg[bar] = base;
+ if (epf_bar->flags & PCI_BASE_ADDRESS_MEM_TYPE_64)
+ bar++;
}
return 0;
--
2.17.1
next prev parent reply other threads:[~2019-01-07 6:44 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-01-07 6:41 [PATCH 00/15] PCI: endpoint: Cleanup EPC features Kishon Vijay Abraham I
2019-01-07 6:41 ` [PATCH 01/15] PCI: endpoint: Add new pci_epc_ops to get " Kishon Vijay Abraham I
2019-01-07 6:41 ` [PATCH 02/15] PCI: dwc: Add ->get_features() callback function in dw_pcie_ep_ops Kishon Vijay Abraham I
2019-01-07 6:41 ` [PATCH 03/15] PCI: designware-plat: Populate ->get_features() dw_pcie_ep_ops Kishon Vijay Abraham I
2019-01-07 6:41 ` [PATCH 04/15] PCI: pci-dra7xx: " Kishon Vijay Abraham I
2019-01-07 6:41 ` [PATCH 05/15] PCI: rockchip: " Kishon Vijay Abraham I
2019-01-07 6:41 ` [PATCH 06/15] PCI: cadence: Populate ->get_features() cdns_pcie_epc_ops Kishon Vijay Abraham I
2019-01-07 6:41 ` [PATCH 07/15] PCI: endpoint: Add helper to get first unreserved BAR Kishon Vijay Abraham I
2019-01-07 6:41 ` [PATCH 08/15] PCI: endpoint: Fix pci_epf_alloc_space to set correct MEM TYPE flags Kishon Vijay Abraham I
2019-01-07 6:41 ` [PATCH 09/15] PCI: pci-epf-test: Remove setting epf_bar flags in function driver Kishon Vijay Abraham I
2019-01-07 6:41 ` Kishon Vijay Abraham I [this message]
2019-01-07 6:41 ` [PATCH 11/15] PCI: pci-epf-test: Use pci_epc_get_features to get EPC features Kishon Vijay Abraham I
2019-02-12 15:07 ` Lorenzo Pieralisi
2019-02-13 13:38 ` Kishon Vijay Abraham I
2019-02-13 13:44 ` Kishon Vijay Abraham I
2019-02-13 14:36 ` Lorenzo Pieralisi
2019-02-14 5:06 ` Kishon Vijay Abraham I
2019-01-07 6:41 ` [PATCH 12/15] PCI: cadence: Remove pci_epf_linkup from Cadence EP driver Kishon Vijay Abraham I
2019-01-07 6:41 ` [PATCH 13/15] PCI: rockchip: Remove pci_epf_linkup from Rockchip " Kishon Vijay Abraham I
2019-01-07 6:41 ` [PATCH 14/15] PCI: designware-plat: Remove setting epc->features in Designware plat " Kishon Vijay Abraham I
2019-01-07 6:41 ` [PATCH 15/15] PCI: endpoint: Remove features member in struct pci_epc Kishon Vijay Abraham I
2019-01-07 14:35 ` [PATCH 00/15] PCI: endpoint: Cleanup EPC features Heiko Stuebner
2019-01-10 5:05 ` Kishon Vijay Abraham I
2019-01-10 12:10 ` Heiko Stuebner
2019-01-24 14:52 ` Lorenzo Pieralisi
2019-01-28 5:01 ` Kishon Vijay Abraham I
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