[PATCH] drm/amdgpu: Retire pcie_gen3_enable function

[Hawking Zhang]

Not needed since from vi. drop the function so
we don't duplicate code when introduce new asics.

Signed-off-by: Hawking Zhang <Hawking.Zhang at amd.com>
---
 drivers/gpu/drm/amd/amdgpu/nv.c    | 17 -----------------
 drivers/gpu/drm/amd/amdgpu/soc15.c | 20 --------------------
 drivers/gpu/drm/amd/amdgpu/soc21.c | 17 -----------------
 drivers/gpu/drm/amd/amdgpu/vi.c    | 20 --------------------
 4 files changed, 74 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/nv.c b/drivers/gpu/drm/amd/amdgpu/nv.c
index 492a8b148227..d56cba10cd5a 100644
--- a/drivers/gpu/drm/amd/amdgpu/nv.c
+++ b/drivers/gpu/drm/amd/amdgpu/nv.c
@@ -519,21 +519,6 @@ static int nv_set_vce_clocks(struct amdgpu_device *adev, u32 evclk, u32 ecclk)
 	return 0;
 }
 
-static void nv_pcie_gen3_enable(struct amdgpu_device *adev)
-{
-	if (pci_is_root_bus(adev->pdev->bus))
-		return;
-
-	if (amdgpu_pcie_gen2 == 0)
-		return;
-
-	if (!(adev->pm.pcie_gen_mask & (CAIL_PCIE_LINK_SPEED_SUPPORT_GEN2 |
-					CAIL_PCIE_LINK_SPEED_SUPPORT_GEN3)))
-		return;
-
-	/* todo */
-}
-
 static void nv_program_aspm(struct amdgpu_device *adev)
 {
 	if (!amdgpu_device_should_use_aspm(adev))
@@ -1041,8 +1026,6 @@ static int nv_common_hw_init(void *handle)
 	if (adev->nbio.funcs->apply_l1_link_width_reconfig_wa)
 		adev->nbio.funcs->apply_l1_link_width_reconfig_wa(adev);
 
-	/* enable pcie gen2/3 link */
-	nv_pcie_gen3_enable(adev);
 	/* enable aspm */
 	nv_program_aspm(adev);
 	/* setup nbio registers */
diff --git a/drivers/gpu/drm/amd/amdgpu/soc15.c b/drivers/gpu/drm/amd/amdgpu/soc15.c
index 2c37b49f5c00..1064972dc558 100644
--- a/drivers/gpu/drm/amd/amdgpu/soc15.c
+++ b/drivers/gpu/drm/amd/amdgpu/soc15.c
@@ -609,24 +609,6 @@ static int soc15_set_vce_clocks(struct amdgpu_device *adev, u32 evclk, u32 ecclk
 	return 0;
 }
 
-static void soc15_pcie_gen3_enable(struct amdgpu_device *adev)
-{
-	if (pci_is_root_bus(adev->pdev->bus))
-		return;
-
-	if (amdgpu_pcie_gen2 == 0)
-		return;
-
-	if (adev->flags & AMD_IS_APU)
-		return;
-
-	if (!(adev->pm.pcie_gen_mask & (CAIL_PCIE_LINK_SPEED_SUPPORT_GEN2 |
-					CAIL_PCIE_LINK_SPEED_SUPPORT_GEN3)))
-		return;
-
-	/* todo */
-}
-
 static void soc15_program_aspm(struct amdgpu_device *adev)
 {
 	if (!amdgpu_device_should_use_aspm(adev))
@@ -1183,8 +1165,6 @@ static int soc15_common_hw_init(void *handle)
 {
 	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 
-	/* enable pcie gen2/3 link */
-	soc15_pcie_gen3_enable(adev);
 	/* enable aspm */
 	soc15_program_aspm(adev);
 	/* setup nbio registers */
diff --git a/drivers/gpu/drm/amd/amdgpu/soc21.c b/drivers/gpu/drm/amd/amdgpu/soc21.c
index 21e271877c4c..e56f2bc73930 100644
--- a/drivers/gpu/drm/amd/amdgpu/soc21.c
+++ b/drivers/gpu/drm/amd/amdgpu/soc21.c
@@ -370,21 +370,6 @@ static int soc21_set_vce_clocks(struct amdgpu_device *adev, u32 evclk, u32 ecclk
 	return 0;
 }
 
-static void soc21_pcie_gen3_enable(struct amdgpu_device *adev)
-{
-	if (pci_is_root_bus(adev->pdev->bus))
-		return;
-
-	if (amdgpu_pcie_gen2 == 0)
-		return;
-
-	if (!(adev->pm.pcie_gen_mask & (CAIL_PCIE_LINK_SPEED_SUPPORT_GEN2 |
-					CAIL_PCIE_LINK_SPEED_SUPPORT_GEN3)))
-		return;
-
-	/* todo */
-}
-
 static void soc21_program_aspm(struct amdgpu_device *adev)
 {
 	if (!amdgpu_device_should_use_aspm(adev))
@@ -714,8 +699,6 @@ static int soc21_common_hw_init(void *handle)
 {
 	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 
-	/* enable pcie gen2/3 link */
-	soc21_pcie_gen3_enable(adev);
 	/* enable aspm */
 	soc21_program_aspm(adev);
 	/* setup nbio registers */
diff --git a/drivers/gpu/drm/amd/amdgpu/vi.c b/drivers/gpu/drm/amd/amdgpu/vi.c
index 12ef782eb478..2512b70ea992 100644
--- a/drivers/gpu/drm/amd/amdgpu/vi.c
+++ b/drivers/gpu/drm/amd/amdgpu/vi.c
@@ -1105,24 +1105,6 @@ static int vi_set_vce_clocks(struct amdgpu_device *adev, u32 evclk, u32 ecclk)
 	return 0;
 }
 
-static void vi_pcie_gen3_enable(struct amdgpu_device *adev)
-{
-	if (pci_is_root_bus(adev->pdev->bus))
-		return;
-
-	if (amdgpu_pcie_gen2 == 0)
-		return;
-
-	if (adev->flags & AMD_IS_APU)
-		return;
-
-	if (!(adev->pm.pcie_gen_mask & (CAIL_PCIE_LINK_SPEED_SUPPORT_GEN2 |
-					CAIL_PCIE_LINK_SPEED_SUPPORT_GEN3)))
-		return;
-
-	/* todo */
-}
-
 static void vi_enable_aspm(struct amdgpu_device *adev)
 {
 	u32 data, orig;
@@ -1743,8 +1725,6 @@ static int vi_common_hw_init(void *handle)
 
 	/* move the golden regs per IP block */
 	vi_init_golden_registers(adev);
-	/* enable pcie gen2/3 link */
-	vi_pcie_gen3_enable(adev);
 	/* enable aspm */
 	vi_program_aspm(adev);
 	/* enable the doorbell aperture */
-- 
2.17.1