[PATCH v2] drm/amdgpu/vg20:support new UVD FW version naming convention

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Vega20 UVD Firmware has a new version naming convention:
  [31, 30] for encode interface major
  [29, 24] for encode interface minor
  [15, 8] for firmware revision
  [7, 0] for hardware family id
Inside kernel log UVD firmware Version: 1.1.2 (denote major.minor.revision)

Signed-off-by: James Zhu <James.Zhu at amd.com>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_uvd.c | 21 ++++++++++++++++-----
 1 file changed, 16 insertions(+), 5 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_uvd.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_uvd.c
index bcf68f8..08cd5c9 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_uvd.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_uvd.c
@@ -208,10 +208,21 @@ int amdgpu_uvd_sw_init(struct amdgpu_device *adev)
 
 	hdr = (const struct common_firmware_header *)adev->uvd.fw->data;
 	family_id = le32_to_cpu(hdr->ucode_version) & 0xff;
-	version_major = (le32_to_cpu(hdr->ucode_version) >> 24) & 0xff;
-	version_minor = (le32_to_cpu(hdr->ucode_version) >> 8) & 0xff;
-	DRM_INFO("Found UVD firmware Version: %hu.%hu Family ID: %hu\n",
-		version_major, version_minor, family_id);
+
+	if (adev->asic_type < CHIP_VEGA20) {
+		version_major = (le32_to_cpu(hdr->ucode_version) >> 24) & 0xff;
+		version_minor = (le32_to_cpu(hdr->ucode_version) >> 8) & 0xff;
+		DRM_INFO("Found UVD firmware Version: %hu.%hu Family ID: %hu\n",
+			version_major, version_minor, family_id);
+	} else {
+		unsigned int fw_rev;
+
+		fw_rev = (le32_to_cpu(hdr->ucode_version) >> 8) & 0xff;
+		version_minor = (le32_to_cpu(hdr->ucode_version) >> 24) & 0x3f;
+		version_major = (le32_to_cpu(hdr->ucode_version) >> 30) & 0x3;
+		DRM_INFO("Found UVD firmware Version: %hu.%hu.%hu Family ID: %hu\n",
+			version_major, version_minor, fw_rev, family_id);
+	}
 
 	/*
 	 * Limit the number of UVD handles depending on microcode major
@@ -219,7 +230,7 @@ int amdgpu_uvd_sw_init(struct amdgpu_device *adev)
 	 * instances support is 1.80. So all subsequent versions should
 	 * also have the same support.
 	 */
-	if ((version_major > 0x01) ||
+	if (adev->asic_type >= CHIP_VEGA20 || (version_major > 0x01) ||
 	    ((version_major == 0x01) && (version_minor >= 0x50)))
 		adev->uvd.max_handles = AMDGPU_MAX_UVD_HANDLES;
 
-- 
2.7.4



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