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 v6 09/27] cxl/acpi: Move add_host_bridge_uport() after cxl_get_chbs()
Date: Wed, 21 Jun 2023 22:51:08 -0500 [thread overview]
Message-ID: <20230622035126.4130151-10-terry.bowman@amd.com> (raw)
In-Reply-To: <20230622035126.4130151-1-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>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.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 70cd9ac73a8b..0c975ee684b0 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;
-}
-
/* Note, @dev is used by mock_acpi_table_parse_cedt() */
struct cxl_chbs_context {
struct device *dev;
@@ -467,6 +422,51 @@ 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:[~2023-06-22 3:55 UTC|newest]
Thread overview: 63+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-06-22 3:50 [PATCH v6 00/27] cxl/pci: Add support for RCH RAS error handling Terry Bowman
2023-06-22 3:51 ` [PATCH v6 01/27] cxl/port: Fix NULL pointer access in devm_cxl_add_port() Terry Bowman
2023-06-22 7:17 ` Robert Richter
2023-06-22 3:51 ` [PATCH v6 02/27] cxl/acpi: Probe RCRB later during RCH downstream port creation Terry Bowman
2023-06-22 22:36 ` Dave Jiang
2023-06-22 3:51 ` [PATCH v6 03/27] cxl: Updates for CXL Test to work with RCH Terry Bowman
2023-06-22 9:53 ` Jonathan Cameron
2023-06-22 10:03 ` Robert Richter
2023-06-22 14:02 ` Terry Bowman
2023-06-22 22:38 ` Dave Jiang
2023-06-22 3:51 ` [PATCH v6 04/27] cxl/rch: Prepare for caching the MMIO mapped PCIe AER capability Terry Bowman
2023-06-22 22:51 ` Dave Jiang
2023-06-22 3:51 ` [PATCH v6 05/27] cxl: Rename member @dport of struct cxl_dport to @dport_dev Terry Bowman
2023-06-22 9:54 ` Jonathan Cameron
2023-06-22 22:53 ` Dave Jiang
2023-06-22 3:51 ` [PATCH v6 06/27] cxl: Rename 'uport' to 'uport_dev' Terry Bowman
2023-06-22 9:56 ` Jonathan Cameron
2023-06-22 22:54 ` Dave Jiang
2023-06-22 3:51 ` [PATCH v6 07/27] cxl/core/regs: Add @dev to cxl_register_map Terry Bowman
2023-06-22 11:14 ` Jonathan Cameron
2023-06-22 23:07 ` Dave Jiang
2023-06-22 3:51 ` [PATCH v6 08/27] cxl/pci: Refactor component register discovery for reuse Terry Bowman
2023-06-22 23:14 ` Dave Jiang
2023-06-22 3:51 ` Terry Bowman [this message]
2023-06-22 23:17 ` [PATCH v6 09/27] cxl/acpi: Move add_host_bridge_uport() after cxl_get_chbs() Dave Jiang
2023-06-22 3:51 ` [PATCH v6 10/27] cxl/acpi: Directly bind the CEDT detected CHBCR to the Host Bridge's port Terry Bowman
2023-06-22 23:28 ` Dave Jiang
2023-06-22 3:51 ` [PATCH v6 11/27] cxl/port: Remove Component Register base address from struct cxl_dport Terry Bowman
2023-06-22 23:47 ` Dave Jiang
2023-06-22 3:51 ` [PATCH v6 12/27] cxl/regs: Remove early capability checks in Component Register setup Terry Bowman
2023-06-22 23:48 ` Dave Jiang
2023-06-22 3:51 ` [PATCH v6 13/27] cxl/mem: Prepare for early RCH dport component register setup Terry Bowman
2023-06-22 11:17 ` Jonathan Cameron
2023-06-22 23:50 ` Dave Jiang
2023-06-22 3:51 ` [PATCH v6 14/27] cxl/pci: Early setup RCH dport component registers from RCRB Terry Bowman
2023-06-22 23:58 ` Dave Jiang
2023-06-22 3:51 ` [PATCH v6 15/27] cxl/port: Store the port's Component Register mappings in struct cxl_port Terry Bowman
2023-06-22 13:20 ` Jonathan Cameron
2023-06-23 0:00 ` Dave Jiang
2023-06-22 3:51 ` [PATCH v6 16/27] cxl/port: Store the downstream port's Component Register mappings in struct cxl_dport Terry Bowman
2023-06-23 0:01 ` Dave Jiang
2023-06-22 3:51 ` [PATCH v6 17/27] cxl/pci: Store the endpoint's Component Register mappings in struct cxl_dev_state Terry Bowman
2023-06-23 0:02 ` Dave Jiang
2023-06-22 3:51 ` [PATCH v6 18/27] cxl/hdm: Use stored Component Register mappings to map HDM decoder capability Terry Bowman
2023-06-23 0:03 ` Dave Jiang
2023-06-22 3:51 ` [PATCH v6 19/27] cxl/port: Remove Component Register base address from struct cxl_port Terry Bowman
2023-06-23 0:04 ` Dave Jiang
2023-06-22 3:51 ` [PATCH v6 20/27] cxl/pci: Add RCH downstream port AER register discovery Terry Bowman
2023-06-22 13:17 ` Jonathan Cameron
2023-06-23 0:10 ` Dave Jiang
2023-06-22 3:51 ` [PATCH v6 21/27] PCI/AER: Refactor cper_print_aer() for use by CXL driver module Terry Bowman
2023-06-22 3:51 ` [PATCH v6 22/27] cxl/pci: Update CXL error logging to use RAS register address Terry Bowman
2023-06-22 3:51 ` [PATCH v6 23/27] cxl/pci: Map RCH downstream AER registers for logging protocol errors Terry Bowman
2023-06-22 13:16 ` Jonathan Cameron
2023-06-22 14:42 ` Terry Bowman
2023-06-22 3:51 ` [PATCH v6 24/27] cxl/pci: Add RCH downstream port error logging Terry Bowman
2023-06-22 3:51 ` [PATCH v6 25/27] cxl/pci: Disable root port interrupts in RCH mode Terry Bowman
2023-06-22 13:12 ` Jonathan Cameron
2023-06-22 16:33 ` Terry Bowman
2023-06-23 13:28 ` Jonathan Cameron
2023-06-22 3:51 ` [PATCH v6 26/27] PCI/AER: Forward RCH downstream port-detected errors to the CXL.mem dev handler Terry Bowman
2023-06-22 3:51 ` [PATCH v6 27/27] PCI/AER: Unmask RCEC internal errors to enable RCH downstream port error handling Terry Bowman
2023-06-22 13:07 ` Jonathan Cameron
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