[PATCH 2/2] drm/amdgpu: Add more fields to IP version

[Lijo Lazar]

Include subrevision and variant fileds also to IP version.

Signed-off-by: Lijo Lazar <lijo.lazar at amd.com>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu.h           | 17 +++++++++++-----
 drivers/gpu/drm/amd/amdgpu/amdgpu_discovery.c | 20 ++++++++++++++++---
 2 files changed, 29 insertions(+), 8 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu.h b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
index 927c049e6132..fbbb1855b243 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
@@ -681,10 +681,14 @@ enum amd_hw_ip_block_type {
 #define HWIP_MAX_INSTANCE	44
 
 #define HW_ID_MAX		300
-#define IP_VERSION(mj, mn, rv) (((mj) << 16) | ((mn) << 8) | (rv))
-#define IP_VERSION_MAJ(ver) ((ver) >> 16)
-#define IP_VERSION_MIN(ver) (((ver) >> 8) & 0xFF)
-#define IP_VERSION_REV(ver) ((ver) & 0xFF)
+#define IP_VERSION_FULL(mj, mn, rv, var, srev) \
+	(((mj) << 24) | ((mn) << 16) | ((rv) << 8) | ((var) << 4) | (srev))
+#define IP_VERSION(mj, mn, rv) IP_VERSION_FULL(mj, mn, rv, 0, 0)
+#define IP_VERSION_MAJ(ver)	((ver) >> 24)
+#define IP_VERSION_MIN(ver)	(((ver) >> 16) & 0xFF)
+#define IP_VERSION_REV(ver)	(((ver) >> 8) & 0xFF)
+#define IP_VERSION_VARIANT(ver)	(((ver) >> 4) & 0xF)
+#define IP_VERSION_SUBREV(ver)	((ver) & 0xF)
 
 struct amdgpu_ip_map_info {
 	/* Map of logical to actual dev instances/mask */
@@ -1104,7 +1108,10 @@ struct amdgpu_device {
 static inline uint32_t amdgpu_ip_version(const struct amdgpu_device *adev,
 					 uint8_t ip, uint8_t inst)
 {
-	return adev->ip_versions[ip][inst];
+	/* This considers only major/minor/rev and ignores
+	 * subrevision/variant fields.
+	 */
+	return adev->ip_versions[ip][inst] & ~0xFFU;
 }
 
 static inline struct amdgpu_device *drm_to_adev(struct drm_device *ddev)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_discovery.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_discovery.c
index 430ee7f64a97..42d379956ef3 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_discovery.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_discovery.c
@@ -1191,6 +1191,7 @@ static void amdgpu_discovery_sysfs_fini(struct amdgpu_device *adev)
 
 static int amdgpu_discovery_reg_base_init(struct amdgpu_device *adev)
 {
+	uint8_t num_base_address, subrev, variant;
 	struct binary_header *bhdr;
 	struct ip_discovery_header *ihdr;
 	struct die_header *dhdr;
@@ -1199,7 +1200,6 @@ static int amdgpu_discovery_reg_base_init(struct amdgpu_device *adev)
 	uint16_t ip_offset;
 	uint16_t num_dies;
 	uint16_t num_ips;
-	uint8_t num_base_address;
 	int hw_ip;
 	int i, j, k;
 	int r;
@@ -1337,8 +1337,22 @@ static int amdgpu_discovery_reg_base_init(struct amdgpu_device *adev)
 					 * example.  On most chips there are multiple instances
 					 * with the same HWID.
 					 */
-					adev->ip_versions[hw_ip][ip->instance_number] =
-						IP_VERSION(ip->major, ip->minor, ip->revision);
+
+					if (ihdr->version < 3) {
+						subrev = 0;
+						variant = 0;
+					} else {
+						subrev = ip->sub_revision;
+						variant = ip->variant;
+					}
+
+					adev->ip_versions[hw_ip]
+							 [ip->instance_number] =
+						IP_VERSION_FULL(ip->major,
+								ip->minor,
+								ip->revision,
+								variant,
+								subrev);
 				}
 			}
 
-- 
2.25.1