From: Terry Bowman <terry.bowman@amd.com>
To: <alison.schofield@intel.com>, <vishal.l.verma@intel.com>,
<ira.weiny@intel.com>, <bwidawsk@kernel.org>,
<dan.j.williams@intel.com>, <dave.jiang@intel.com>,
<Jonathan.Cameron@huawei.com>, <linux-cxl@vger.kernel.org>
Cc: <terry.bowman@amd.com>, <rrichter@amd.com>,
<linux-kernel@vger.kernel.org>, <bhelgaas@google.com>
Subject: [PATCH v4 06/23] cxl/acpi: Moving add_host_bridge_uport() around
Date: Tue, 23 May 2023 18:21:57 -0500 [thread overview]
Message-ID: <20230523232214.55282-7-terry.bowman@amd.com> (raw)
In-Reply-To: <20230523232214.55282-1-terry.bowman@amd.com>
From: Robert Richter <rrichter@amd.com>
Just moving code to reorder functions to later share cxl_get_chbs()
with add_host_bridge_uport().
This makes changes in the next patch visible. No other changes at all.
Signed-off-by: Robert Richter <rrichter@amd.com>
Signed-off-by: Terry Bowman <terry.bowman@amd.com>
---
drivers/cxl/acpi.c | 90 +++++++++++++++++++++++-----------------------
1 file changed, 45 insertions(+), 45 deletions(-)
diff --git a/drivers/cxl/acpi.c b/drivers/cxl/acpi.c
index 39227070da9b..4fd9fe32f830 100644
--- a/drivers/cxl/acpi.c
+++ b/drivers/cxl/acpi.c
@@ -327,51 +327,6 @@ __mock struct acpi_device *to_cxl_host_bridge(struct device *host,
return NULL;
}
-/*
- * A host bridge is a dport to a CFMWS decode and it is a uport to the
- * dport (PCIe Root Ports) in the host bridge.
- */
-static int add_host_bridge_uport(struct device *match, void *arg)
-{
- struct cxl_port *root_port = arg;
- struct device *host = root_port->dev.parent;
- struct acpi_device *hb = to_cxl_host_bridge(host, match);
- struct acpi_pci_root *pci_root;
- struct cxl_dport *dport;
- struct cxl_port *port;
- struct device *bridge;
- int rc;
-
- if (!hb)
- return 0;
-
- pci_root = acpi_pci_find_root(hb->handle);
- bridge = pci_root->bus->bridge;
- dport = cxl_find_dport_by_dev(root_port, bridge);
- if (!dport) {
- dev_dbg(host, "host bridge expected and not found\n");
- return 0;
- }
-
- if (dport->rch) {
- dev_info(bridge, "host supports CXL (restricted)\n");
- return 0;
- }
-
- rc = devm_cxl_register_pci_bus(host, bridge, pci_root->bus);
- if (rc)
- return rc;
-
- port = devm_cxl_add_port(host, bridge, dport->component_reg_phys,
- dport);
- if (IS_ERR(port))
- return PTR_ERR(port);
-
- dev_info(bridge, "host supports CXL\n");
-
- return 0;
-}
-
struct cxl_chbs_context {
unsigned long long uid;
resource_size_t base;
@@ -464,6 +419,51 @@ static int add_host_bridge_dport(struct device *match, void *arg)
return 0;
}
+/*
+ * A host bridge is a dport to a CFMWS decode and it is a uport to the
+ * dport (PCIe Root Ports) in the host bridge.
+ */
+static int add_host_bridge_uport(struct device *match, void *arg)
+{
+ struct cxl_port *root_port = arg;
+ struct device *host = root_port->dev.parent;
+ struct acpi_device *hb = to_cxl_host_bridge(host, match);
+ struct acpi_pci_root *pci_root;
+ struct cxl_dport *dport;
+ struct cxl_port *port;
+ struct device *bridge;
+ int rc;
+
+ if (!hb)
+ return 0;
+
+ pci_root = acpi_pci_find_root(hb->handle);
+ bridge = pci_root->bus->bridge;
+ dport = cxl_find_dport_by_dev(root_port, bridge);
+ if (!dport) {
+ dev_dbg(host, "host bridge expected and not found\n");
+ return 0;
+ }
+
+ if (dport->rch) {
+ dev_info(bridge, "host supports CXL (restricted)\n");
+ return 0;
+ }
+
+ rc = devm_cxl_register_pci_bus(host, bridge, pci_root->bus);
+ if (rc)
+ return rc;
+
+ port = devm_cxl_add_port(host, bridge, dport->component_reg_phys,
+ dport);
+ if (IS_ERR(port))
+ return PTR_ERR(port);
+
+ dev_info(bridge, "host supports CXL\n");
+
+ return 0;
+}
+
static int add_root_nvdimm_bridge(struct device *match, void *data)
{
struct cxl_decoder *cxld;
--
2.34.1
next prev parent reply other threads:[~2023-05-23 23:24 UTC|newest]
Thread overview: 68+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-05-23 23:21 [PATCH v4 00/23] cxl/pci: Add support for RCH RAS error handling Terry Bowman
2023-05-23 23:21 ` [PATCH v4 01/23] cxl/acpi: Probe RCRB later during RCH downstream port creation Terry Bowman
2023-06-01 10:13 ` Jonathan Cameron
2023-06-02 14:16 ` Robert Richter
2023-05-23 23:21 ` [PATCH v4 02/23] cxl/rch: Prepare for caching the MMIO mapped PCIe AER capability Terry Bowman
2023-06-01 10:38 ` Jonathan Cameron
2023-06-02 14:53 ` Robert Richter
2023-05-23 23:21 ` [PATCH v4 03/23] cxl: Rename member @dport of struct cxl_dport to @dev Terry Bowman
2023-06-01 10:41 ` Jonathan Cameron
2023-05-23 23:21 ` [PATCH v4 04/23] cxl/core/regs: Add @dev to cxl_register_map Terry Bowman
2023-06-01 10:49 ` Jonathan Cameron
2023-06-02 15:11 ` Robert Richter
2023-05-23 23:21 ` [PATCH v4 05/23] cxl/pci: Refactor component register discovery for reuse Terry Bowman
2023-06-01 10:52 ` Jonathan Cameron
2023-05-23 23:21 ` Terry Bowman [this message]
2023-06-01 10:54 ` [PATCH v4 06/23] cxl/acpi: Moving add_host_bridge_uport() around Jonathan Cameron
2023-05-23 23:21 ` [PATCH v4 07/23] cxl/acpi: Directly bind the CEDT detected CHBCR to the Host Bridge's port Terry Bowman
2023-06-01 12:45 ` Jonathan Cameron
2023-06-02 15:42 ` Robert Richter
2023-05-23 23:21 ` [PATCH v4 08/23] cxl/regs: Remove early capability checks in Component Register setup Terry Bowman
2023-06-01 12:49 ` Jonathan Cameron
2023-05-23 23:22 ` [PATCH v4 09/23] cxl/pci: Early setup RCH dport component registers from RCRB Terry Bowman
2023-06-01 12:59 ` Jonathan Cameron
2023-06-02 15:45 ` Robert Richter
2023-05-23 23:22 ` [PATCH v4 10/23] cxl/port: Store the port's Component Register mappings in struct cxl_port Terry Bowman
2023-06-01 13:06 ` Jonathan Cameron
2023-06-02 15:58 ` Robert Richter
2023-05-23 23:22 ` [PATCH v4 11/23] cxl/port: Store the downstream port's Component Register mappings in struct cxl_dport Terry Bowman
2023-06-01 13:07 ` Jonathan Cameron
2023-05-23 23:22 ` [PATCH v4 12/23] cxl/pci: Store the endpoint's Component Register mappings in struct cxl_dev_state Terry Bowman
2023-06-01 13:07 ` Jonathan Cameron
2023-05-23 23:22 ` [PATCH v4 13/23] cxl/hdm: Use stored Component Register mappings to map HDM decoder capability Terry Bowman
[not found] ` <202305240842.zr8PTfcu-lkp@intel.com>
2023-05-24 9:49 ` Robert Richter
2023-06-01 13:11 ` Jonathan Cameron
2023-05-23 23:22 ` [PATCH v4 14/23] cxl/port: Remove Component Register base address from struct cxl_port Terry Bowman
2023-06-01 13:27 ` Jonathan Cameron
2023-05-23 23:22 ` [PATCH v4 15/23] cxl/port: Remove Component Register base address from struct cxl_dport Terry Bowman
2023-06-01 13:28 ` Jonathan Cameron
2023-05-23 23:22 ` [PATCH v4 16/23] cxl/pci: Remove Component Register base address from struct cxl_dev_state Terry Bowman
2023-06-01 13:28 ` Jonathan Cameron
2023-05-23 23:22 ` [PATCH v4 17/23] cxl/pci: Add RCH downstream port AER register discovery Terry Bowman
2023-06-01 13:36 ` Jonathan Cameron
2023-06-01 13:38 ` Jonathan Cameron
2023-05-23 23:22 ` [PATCH v4 18/23] PCI/AER: Refactor cper_print_aer() for use by CXL driver module Terry Bowman
2023-05-24 16:55 ` Bjorn Helgaas
2023-05-25 21:38 ` Terry Bowman
2023-05-23 23:22 ` [PATCH v4 19/23] cxl/pci: Update CXL error logging to use RAS register address Terry Bowman
2023-06-01 13:42 ` Jonathan Cameron
2023-05-23 23:22 ` [PATCH v4 20/23] cxl/pci: Prepare for logging RCH downstream port protocol errors Terry Bowman
2023-06-01 13:49 ` Jonathan Cameron
2023-06-01 14:06 ` Terry Bowman
2023-06-01 14:12 ` Jonathan Cameron
2023-05-23 23:22 ` [PATCH v4 21/23] cxl/pci: Add RCH downstream port error logging Terry Bowman
2023-06-01 14:03 ` Jonathan Cameron
2023-05-23 23:22 ` [PATCH v4 22/23] PCI/AER: Forward RCH downstream port-detected errors to the CXL.mem dev handler Terry Bowman
2023-05-24 21:32 ` Bjorn Helgaas
2023-05-25 21:29 ` Robert Richter
2023-05-25 22:01 ` Bjorn Helgaas
2023-05-25 22:28 ` Robert Richter
2023-06-01 14:06 ` Jonathan Cameron
2023-05-23 23:22 ` [PATCH v4 23/23] PCI/AER: Unmask RCEC internal errors to enable RCH downstream port error handling Terry Bowman
2023-05-24 21:45 ` Bjorn Helgaas
2023-05-25 22:08 ` Robert Richter
2023-05-26 20:31 ` Bjorn Helgaas
2023-06-01 14:11 ` Jonathan Cameron
2023-06-02 16:41 ` Robert Richter
2023-05-23 23:29 ` [PATCH v4 00/23] cxl/pci: Add support for RCH RAS error handling - CHANGELOG Terry Bowman
2023-05-24 1:39 ` [PATCH v4 00/23] cxl/pci: Add support for RCH RAS error handling Terry Bowman
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