[PATCH v3 2/2] drm/amdgpu/vcn: Remove redundant indirect SRAM HW model check

[Guilherme G. Piccoli]

The HW model validation that guards the indirect SRAM checking in the
VCN code path is redundant - there's no model that's not included in the
switch, making it useless in practice [0].

So, let's remove this switch statement for good.

[0] lore.kernel.org/amd-gfx/MN0PR12MB61013D20B8A2263B22AE1BCFE2C19 at MN0PR12MB6101.namprd12.prod.outlook.com

Suggested-by: Alex Deucher <Alexander.Deucher at amd.com>
Reviewed-by: Mario Limonciello <mario.limonciello at amd.com>
Cc: James Zhu <James.Zhu at amd.com>
Cc: Lazar Lijo <Lijo.Lazar at amd.com>
Cc: Leo Liu <leo.liu at amd.com>
Cc: Sonny Jiang <sonny.jiang at amd.com>
Signed-off-by: Guilherme G. Piccoli <gpiccoli at igalia.com>
---


V3:
* Added Mario's review tag and Alex's suggested tag - thanks
for the reminder Mario!

V2:
* Changed the approach after ML discussion- instead of cleaning up
the switch statement, removed it entirely - special thanks to Alex
and Mario for the feedback!


 drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.c | 81 +------------------------
 1 file changed, 3 insertions(+), 78 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.c
index 1b1a3c9e1863..02d428ddf2f8 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.c
@@ -110,84 +110,9 @@ int amdgpu_vcn_sw_init(struct amdgpu_device *adev)
 	for (i = 0; i < adev->vcn.num_vcn_inst; i++)
 		atomic_set(&adev->vcn.inst[i].dpg_enc_submission_cnt, 0);
 
-	switch (adev->ip_versions[UVD_HWIP][0]) {
-	case IP_VERSION(1, 0, 0):
-	case IP_VERSION(1, 0, 1):
-	case IP_VERSION(2, 5, 0):
-		if ((adev->firmware.load_type == AMDGPU_FW_LOAD_PSP) &&
-		    (adev->pg_flags & AMD_PG_SUPPORT_VCN_DPG))
-			adev->vcn.indirect_sram = true;
-		break;
-	case IP_VERSION(2, 2, 0):
-		if ((adev->firmware.load_type == AMDGPU_FW_LOAD_PSP) &&
-		    (adev->pg_flags & AMD_PG_SUPPORT_VCN_DPG))
-			adev->vcn.indirect_sram = true;
-		break;
-	case IP_VERSION(2, 6, 0):
-		if ((adev->firmware.load_type == AMDGPU_FW_LOAD_PSP) &&
-		    (adev->pg_flags & AMD_PG_SUPPORT_VCN_DPG))
-			adev->vcn.indirect_sram = true;
-		break;
-	case IP_VERSION(2, 0, 0):
-		if ((adev->firmware.load_type == AMDGPU_FW_LOAD_PSP) &&
-		    (adev->pg_flags & AMD_PG_SUPPORT_VCN_DPG))
-			adev->vcn.indirect_sram = true;
-		break;
-	case IP_VERSION(2, 0, 2):
-		if ((adev->firmware.load_type == AMDGPU_FW_LOAD_PSP) &&
-		    (adev->pg_flags & AMD_PG_SUPPORT_VCN_DPG))
-			adev->vcn.indirect_sram = true;
-		break;
-	case IP_VERSION(3, 0, 0):
-	case IP_VERSION(3, 0, 64):
-	case IP_VERSION(3, 0, 192):
-		if ((adev->firmware.load_type == AMDGPU_FW_LOAD_PSP) &&
-		    (adev->pg_flags & AMD_PG_SUPPORT_VCN_DPG))
-			adev->vcn.indirect_sram = true;
-		break;
-	case IP_VERSION(3, 0, 2):
-		if ((adev->firmware.load_type == AMDGPU_FW_LOAD_PSP) &&
-		    (adev->pg_flags & AMD_PG_SUPPORT_VCN_DPG))
-			adev->vcn.indirect_sram = true;
-		break;
-	case IP_VERSION(3, 0, 16):
-		if ((adev->firmware.load_type == AMDGPU_FW_LOAD_PSP) &&
-		    (adev->pg_flags & AMD_PG_SUPPORT_VCN_DPG))
-			adev->vcn.indirect_sram = true;
-		break;
-	case IP_VERSION(3, 0, 33):
-		if ((adev->firmware.load_type == AMDGPU_FW_LOAD_PSP) &&
-		    (adev->pg_flags & AMD_PG_SUPPORT_VCN_DPG))
-			adev->vcn.indirect_sram = true;
-		break;
-	case IP_VERSION(3, 1, 1):
-		if ((adev->firmware.load_type == AMDGPU_FW_LOAD_PSP) &&
-		    (adev->pg_flags & AMD_PG_SUPPORT_VCN_DPG))
-			adev->vcn.indirect_sram = true;
-		break;
-	case IP_VERSION(3, 1, 2):
-		if ((adev->firmware.load_type == AMDGPU_FW_LOAD_PSP) &&
-		    (adev->pg_flags & AMD_PG_SUPPORT_VCN_DPG))
-			adev->vcn.indirect_sram = true;
-		break;
-	case IP_VERSION(4, 0, 0):
-		if ((adev->firmware.load_type == AMDGPU_FW_LOAD_PSP) &&
-			(adev->pg_flags & AMD_PG_SUPPORT_VCN_DPG))
-			adev->vcn.indirect_sram = true;
-		break;
-	case IP_VERSION(4, 0, 2):
-		if ((adev->firmware.load_type == AMDGPU_FW_LOAD_PSP) &&
-			(adev->pg_flags & AMD_PG_SUPPORT_VCN_DPG))
-			adev->vcn.indirect_sram = true;
-		break;
-	case IP_VERSION(4, 0, 4):
-		if ((adev->firmware.load_type == AMDGPU_FW_LOAD_PSP) &&
-			(adev->pg_flags & AMD_PG_SUPPORT_VCN_DPG))
-			adev->vcn.indirect_sram = true;
-		break;
-	default:
-		return -EINVAL;
-	}
+	if ((adev->firmware.load_type == AMDGPU_FW_LOAD_PSP) &&
+	    (adev->pg_flags & AMD_PG_SUPPORT_VCN_DPG))
+		adev->vcn.indirect_sram = true;
 
 	hdr = (const struct common_firmware_header *)adev->vcn.fw->data;
 	adev->vcn.fw_version = le32_to_cpu(hdr->ucode_version);
-- 
2.39.0