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authorRob Clark <robin.clark@oss.qualcomm.com>2025-06-29 05:54:49 +0300
committerRob Clark <robin.clark@oss.qualcomm.com>2025-06-29 05:54:49 +0300
commit74f1af95820fc2ee580a775a3a17c416db30b38c (patch)
tree7c82cffe3c1d99b99053d28b57a4ac5d81f85844 /drivers/pci/tph.c
parentd3deabe4c619875714b9a844b1a3d9752dbae1dd (diff)
parentf41830c57bb8e70e283b9db251c95f1270a8279d (diff)
downloadlinux-74f1af95820fc2ee580a775a3a17c416db30b38c.tar.xz
Merge remote-tracking branch 'drm/drm-next' into msm-next
Back-merge drm-next to (indirectly) get arm-smmu updates for making stall-on-fault more reliable. Signed-off-by: Rob Clark <robin.clark@oss.qualcomm.com>
Diffstat (limited to 'drivers/pci/tph.c')
-rw-r--r--drivers/pci/tph.c44
1 files changed, 1 insertions, 43 deletions
diff --git a/drivers/pci/tph.c b/drivers/pci/tph.c
index 07de59ca2ebf..77fce5e1b830 100644
--- a/drivers/pci/tph.c
+++ b/drivers/pci/tph.c
@@ -204,48 +204,6 @@ static u8 get_rp_completer_type(struct pci_dev *pdev)
return FIELD_GET(PCI_EXP_DEVCAP2_TPH_COMP_MASK, reg);
}
-/* Write ST to MSI-X vector control reg - Return 0 if OK, otherwise -errno */
-static int write_tag_to_msix(struct pci_dev *pdev, int msix_idx, u16 tag)
-{
-#ifdef CONFIG_PCI_MSI
- struct msi_desc *msi_desc = NULL;
- void __iomem *vec_ctrl;
- u32 val;
- int err = 0;
-
- msi_lock_descs(&pdev->dev);
-
- /* Find the msi_desc entry with matching msix_idx */
- msi_for_each_desc(msi_desc, &pdev->dev, MSI_DESC_ASSOCIATED) {
- if (msi_desc->msi_index == msix_idx)
- break;
- }
-
- if (!msi_desc) {
- err = -ENXIO;
- goto err_out;
- }
-
- /* Get the vector control register (offset 0xc) pointed by msix_idx */
- vec_ctrl = pdev->msix_base + msix_idx * PCI_MSIX_ENTRY_SIZE;
- vec_ctrl += PCI_MSIX_ENTRY_VECTOR_CTRL;
-
- val = readl(vec_ctrl);
- val &= ~PCI_MSIX_ENTRY_CTRL_ST;
- val |= FIELD_PREP(PCI_MSIX_ENTRY_CTRL_ST, tag);
- writel(val, vec_ctrl);
-
- /* Read back to flush the update */
- val = readl(vec_ctrl);
-
-err_out:
- msi_unlock_descs(&pdev->dev);
- return err;
-#else
- return -ENODEV;
-#endif
-}
-
/* Write tag to ST table - Return 0 if OK, otherwise -errno */
static int write_tag_to_st_table(struct pci_dev *pdev, int index, u16 tag)
{
@@ -346,7 +304,7 @@ int pcie_tph_set_st_entry(struct pci_dev *pdev, unsigned int index, u16 tag)
switch (loc) {
case PCI_TPH_LOC_MSIX:
- err = write_tag_to_msix(pdev, index, tag);
+ err = pci_msix_write_tph_tag(pdev, index, tag);
break;
case PCI_TPH_LOC_CAP:
err = write_tag_to_st_table(pdev, index, tag);