Thread (50 messages) 50 messages, 9 authors, 2025-04-23
STALE445d REVIEWED: 15 (15M)
Revisions (6)
  1. v1 [diff vs current]
  2. v2 [diff vs current]
  3. v3 [diff vs current]
  4. v4 [diff vs current]
  5. v5 current
  6. v6 [diff vs current]

[PATCH v5 -next 05/11] PCI: brcmstb: Expand inbound window size up to 64GB

From: Stanimir Varbanov <hidden>
Date: 2025-01-20 13:01:51
Also in: linux-devicetree, linux-pci, lkml
Subsystem: broadcom bcm2711/bcm2835 arm architecture, broadcom bcm7xxx arm architecture, broadcom stb pcie driver, pci native host bridge and endpoint drivers, pci subsystem, the rest · Maintainers: Florian Fainelli, Jim Quinlan, Lorenzo Pieralisi, Krzysztof Wilczyński, Manivannan Sadhasivam, Bjorn Helgaas, Linus Torvalds

BCM2712 memory map can support up to 64GB of system memory, thus expand
the inbound window size in calculation helper function.

The change is save for the currently supported SoCs that has smaller
inbound window sizes.

Signed-off-by: Stanimir Varbanov <redacted>
Reviewed-by: Florian Fainelli <florian.fainelli@broadcom.com>
---
v4 -> v5:
 - No changes.

 drivers/pci/controller/pcie-brcmstb.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/pci/controller/pcie-brcmstb.c b/drivers/pci/controller/pcie-brcmstb.c
index 48b2747d8c98..59190d8be0fb 100644
--- a/drivers/pci/controller/pcie-brcmstb.c
+++ b/drivers/pci/controller/pcie-brcmstb.c
@@ -304,8 +304,8 @@ static int brcm_pcie_encode_ibar_size(u64 size)
 	if (log2_in >= 12 && log2_in <= 15)
 		/* Covers 4KB to 32KB (inclusive) */
 		return (log2_in - 12) + 0x1c;
-	else if (log2_in >= 16 && log2_in <= 35)
-		/* Covers 64KB to 32GB, (inclusive) */
+	else if (log2_in >= 16 && log2_in <= 36)
+		/* Covers 64KB to 64GB, (inclusive) */
 		return log2_in - 15;
 	/* Something is awry so disable */
 	return 0;
-- 
2.47.0

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