4.19-stable review patch. If anyone has any objections, please let me know.
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From: Bjorn Helgaas bhelgaas@google.com
[ Upstream commit ca56f99c18cafdeae6961ce9d87fc978506152ca ]
Replace hard-coded magic numbers with the descriptive PCI_EXP_LNKCTL2 definitions. No functional change intended.
Link: https://lore.kernel.org/r/20191112173503.176611-4-helgaas@kernel.org Signed-off-by: Bjorn Helgaas bhelgaas@google.com Reviewed-by: Alex Deucher alexander.deucher@amd.com Stable-dep-of: 7189576e8a82 ("drm/radeon: Use RMW accessors for changing LNKCTL") Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/gpu/drm/radeon/cik.c | 22 ++++++++++++++-------- drivers/gpu/drm/radeon/si.c | 22 ++++++++++++++-------- 2 files changed, 28 insertions(+), 16 deletions(-)
diff --git a/drivers/gpu/drm/radeon/cik.c b/drivers/gpu/drm/radeon/cik.c index bd009d12b1571..47e5c29a9c2f7 100644 --- a/drivers/gpu/drm/radeon/cik.c +++ b/drivers/gpu/drm/radeon/cik.c @@ -9615,13 +9615,19 @@ static void cik_pcie_gen3_enable(struct radeon_device *rdev)
/* linkctl2 */ pci_read_config_word(root, bridge_pos + PCI_EXP_LNKCTL2, &tmp16); - tmp16 &= ~((1 << 4) | (7 << 7)); - tmp16 |= (bridge_cfg2 & ((1 << 4) | (7 << 7))); + tmp16 &= ~(PCI_EXP_LNKCTL2_ENTER_COMP | + PCI_EXP_LNKCTL2_TX_MARGIN); + tmp16 |= (bridge_cfg2 & + (PCI_EXP_LNKCTL2_ENTER_COMP | + PCI_EXP_LNKCTL2_TX_MARGIN)); pci_write_config_word(root, bridge_pos + PCI_EXP_LNKCTL2, tmp16);
pci_read_config_word(rdev->pdev, gpu_pos + PCI_EXP_LNKCTL2, &tmp16); - tmp16 &= ~((1 << 4) | (7 << 7)); - tmp16 |= (gpu_cfg2 & ((1 << 4) | (7 << 7))); + tmp16 &= ~(PCI_EXP_LNKCTL2_ENTER_COMP | + PCI_EXP_LNKCTL2_TX_MARGIN); + tmp16 |= (gpu_cfg2 & + (PCI_EXP_LNKCTL2_ENTER_COMP | + PCI_EXP_LNKCTL2_TX_MARGIN)); pci_write_config_word(rdev->pdev, gpu_pos + PCI_EXP_LNKCTL2, tmp16);
tmp = RREG32_PCIE_PORT(PCIE_LC_CNTL4); @@ -9637,13 +9643,13 @@ static void cik_pcie_gen3_enable(struct radeon_device *rdev) WREG32_PCIE_PORT(PCIE_LC_SPEED_CNTL, speed_cntl);
pci_read_config_word(rdev->pdev, gpu_pos + PCI_EXP_LNKCTL2, &tmp16); - tmp16 &= ~0xf; + tmp16 &= ~PCI_EXP_LNKCTL2_TLS; if (speed_cap == PCIE_SPEED_8_0GT) - tmp16 |= 3; /* gen3 */ + tmp16 |= PCI_EXP_LNKCTL2_TLS_8_0GT; /* gen3 */ else if (speed_cap == PCIE_SPEED_5_0GT) - tmp16 |= 2; /* gen2 */ + tmp16 |= PCI_EXP_LNKCTL2_TLS_5_0GT; /* gen2 */ else - tmp16 |= 1; /* gen1 */ + tmp16 |= PCI_EXP_LNKCTL2_TLS_2_5GT; /* gen1 */ pci_write_config_word(rdev->pdev, gpu_pos + PCI_EXP_LNKCTL2, tmp16);
speed_cntl = RREG32_PCIE_PORT(PCIE_LC_SPEED_CNTL); diff --git a/drivers/gpu/drm/radeon/si.c b/drivers/gpu/drm/radeon/si.c index 7ed5d7970108c..53ef1bff057e9 100644 --- a/drivers/gpu/drm/radeon/si.c +++ b/drivers/gpu/drm/radeon/si.c @@ -7198,13 +7198,19 @@ static void si_pcie_gen3_enable(struct radeon_device *rdev)
/* linkctl2 */ pci_read_config_word(root, bridge_pos + PCI_EXP_LNKCTL2, &tmp16); - tmp16 &= ~((1 << 4) | (7 << 7)); - tmp16 |= (bridge_cfg2 & ((1 << 4) | (7 << 7))); + tmp16 &= ~(PCI_EXP_LNKCTL2_ENTER_COMP | + PCI_EXP_LNKCTL2_TX_MARGIN); + tmp16 |= (bridge_cfg2 & + (PCI_EXP_LNKCTL2_ENTER_COMP | + PCI_EXP_LNKCTL2_TX_MARGIN)); pci_write_config_word(root, bridge_pos + PCI_EXP_LNKCTL2, tmp16);
pci_read_config_word(rdev->pdev, gpu_pos + PCI_EXP_LNKCTL2, &tmp16); - tmp16 &= ~((1 << 4) | (7 << 7)); - tmp16 |= (gpu_cfg2 & ((1 << 4) | (7 << 7))); + tmp16 &= ~(PCI_EXP_LNKCTL2_ENTER_COMP | + PCI_EXP_LNKCTL2_TX_MARGIN); + tmp16 |= (gpu_cfg2 & + (PCI_EXP_LNKCTL2_ENTER_COMP | + PCI_EXP_LNKCTL2_TX_MARGIN)); pci_write_config_word(rdev->pdev, gpu_pos + PCI_EXP_LNKCTL2, tmp16);
tmp = RREG32_PCIE_PORT(PCIE_LC_CNTL4); @@ -7220,13 +7226,13 @@ static void si_pcie_gen3_enable(struct radeon_device *rdev) WREG32_PCIE_PORT(PCIE_LC_SPEED_CNTL, speed_cntl);
pci_read_config_word(rdev->pdev, gpu_pos + PCI_EXP_LNKCTL2, &tmp16); - tmp16 &= ~0xf; + tmp16 &= ~PCI_EXP_LNKCTL2_TLS; if (speed_cap == PCIE_SPEED_8_0GT) - tmp16 |= 3; /* gen3 */ + tmp16 |= PCI_EXP_LNKCTL2_TLS_8_0GT; /* gen3 */ else if (speed_cap == PCIE_SPEED_5_0GT) - tmp16 |= 2; /* gen2 */ + tmp16 |= PCI_EXP_LNKCTL2_TLS_5_0GT; /* gen2 */ else - tmp16 |= 1; /* gen1 */ + tmp16 |= PCI_EXP_LNKCTL2_TLS_2_5GT; /* gen1 */ pci_write_config_word(rdev->pdev, gpu_pos + PCI_EXP_LNKCTL2, tmp16);
speed_cntl = RREG32_PCIE_PORT(PCIE_LC_SPEED_CNTL);