From dd2a93a814e7ffbd4d2c3e361f4609c9bd384a96 Mon Sep 17 00:00:00 2001 From: Ben Widawsky Date: Thu, 20 May 2021 13:48:52 -0700 Subject: [PATCH] cxl/mem: Demarcate vendor specific capability IDs Vendor capabilities occupy 0x8000 to 0xFFFF according to CXL 2.0 spec 8.2.8.2.1 CXL Device Capabilities. While they are not defined by the spec, they are allowed and not "unknown". Call this detail out in the logs to let users easily distinguish the difference. This patch is a squash of two earlier patches and take in some minor suggestions from both Vishal and Dan. Cc: Vishal Verma Cc: Dan Williams Signed-off-by: Ben Widawsky Reviewed-by: Vishal Verma Link: https://lore.kernel.org/r/20210520204852.1070780-1-ben.widawsky@intel.com Signed-off-by: Dan Williams --- drivers/cxl/core.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/drivers/cxl/core.c b/drivers/cxl/core.c index 84b90db..38979c9 100644 --- a/drivers/cxl/core.c +++ b/drivers/cxl/core.c @@ -60,7 +60,10 @@ void cxl_setup_device_regs(struct device *dev, void __iomem *base, regs->memdev = register_block; break; default: - dev_dbg(dev, "Unknown cap ID: %d (0x%x)\n", cap_id, offset); + if (cap_id >= 0x8000) + dev_dbg(dev, "Vendor cap ID: %#x offset: %#x\n", cap_id, offset); + else + dev_dbg(dev, "Unknown cap ID: %#x offset: %#x\n", cap_id, offset); break; } } -- 2.7.4