[PATCH 2/5] drm/amdgpu: Add IP instance map for aqua vanjaram

[Alex Deucher]

From: Lijo Lazar <lijo.lazar at amd.com>

Add XCC logical to physical instance map for aqua vanjaram

v2:
	Keep look up table only for required IPs, for others return
default mapping (Felix).

Signed-off-by: Lijo Lazar <lijo.lazar at amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang at amd.com>
Reviewed-by: Le Ma <Le.Ma at amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling at amd.com>
Signed-off-by: Alex Deucher <alexander.deucher at amd.com>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_discovery.c | 13 +++++++
 .../drm/amd/amdgpu/aqua_vanjaram_reg_init.c   | 39 +++++++++++++++++++
 drivers/gpu/drm/amd/amdgpu/soc15.h            |  1 +
 3 files changed, 53 insertions(+)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_discovery.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_discovery.c
index 0ecce0b92b82..f5d146c998a1 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_discovery.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_discovery.c
@@ -2000,6 +2000,17 @@ static int amdgpu_discovery_set_mes_ip_blocks(struct amdgpu_device *adev)
 	return 0;
 }
 
+static void amdgpu_discovery_ip_map_init(struct amdgpu_device *adev)
+{
+	switch (adev->ip_versions[GC_HWIP][0]) {
+	case IP_VERSION(9, 4, 3):
+		aqua_vanjaram_ip_map_init(adev);
+		break;
+	default:
+		break;
+	}
+}
+
 int amdgpu_discovery_set_ip_blocks(struct amdgpu_device *adev)
 {
 	int r;
@@ -2177,6 +2188,8 @@ int amdgpu_discovery_set_ip_blocks(struct amdgpu_device *adev)
 		break;
 	}
 
+	amdgpu_discovery_ip_map_init(adev);
+
 	switch (adev->ip_versions[GC_HWIP][0]) {
 	case IP_VERSION(9, 0, 1):
 	case IP_VERSION(9, 2, 1):
diff --git a/drivers/gpu/drm/amd/amdgpu/aqua_vanjaram_reg_init.c b/drivers/gpu/drm/amd/amdgpu/aqua_vanjaram_reg_init.c
index 3b97bc922d4a..dbff8220fc19 100644
--- a/drivers/gpu/drm/amd/amdgpu/aqua_vanjaram_reg_init.c
+++ b/drivers/gpu/drm/amd/amdgpu/aqua_vanjaram_reg_init.c
@@ -50,3 +50,42 @@ void aqua_vanjaram_doorbell_index_init(struct amdgpu_device *adev)
 
 	adev->doorbell_index.max_assignment = AMDGPU_DOORBELL_LAYOUT1_MAX_ASSIGNMENT << 1;
 }
+
+static int8_t aqua_vanjaram_logical_to_dev_inst(struct amdgpu_device *adev,
+					 enum amd_hw_ip_block_type block,
+					 int8_t inst)
+{
+	int8_t dev_inst;
+
+	switch (block) {
+	case GC_HWIP:
+		dev_inst = adev->ip_map.dev_inst[block][inst];
+		break;
+	default:
+		/* For rest of the IPs, no look up required.
+		 * Assume 'logical instance == physical instance' for all configs. */
+		dev_inst = inst;
+		break;
+	}
+
+	return dev_inst;
+}
+
+void aqua_vanjaram_ip_map_init(struct amdgpu_device *adev)
+{
+	int xcc_mask;
+	int l, i;
+
+	/* Map GC instances */
+	l = 0;
+	xcc_mask = adev->gfx.xcc_mask;
+	while (xcc_mask) {
+		i = ffs(xcc_mask) - 1;
+		adev->ip_map.dev_inst[GC_HWIP][l++] = i;
+		xcc_mask &= ~(1 << i);
+	}
+	for (; l < HWIP_MAX_INSTANCE; l++)
+		adev->ip_map.dev_inst[GC_HWIP][l] = -1;
+
+	adev->ip_map.logical_to_dev_inst = aqua_vanjaram_logical_to_dev_inst;
+}
diff --git a/drivers/gpu/drm/amd/amdgpu/soc15.h b/drivers/gpu/drm/amd/amdgpu/soc15.h
index 2b41ee968dd1..d8a2a6c2c6e3 100644
--- a/drivers/gpu/drm/amd/amdgpu/soc15.h
+++ b/drivers/gpu/drm/amd/amdgpu/soc15.h
@@ -111,6 +111,7 @@ int vega10_reg_base_init(struct amdgpu_device *adev);
 int vega20_reg_base_init(struct amdgpu_device *adev);
 int arct_reg_base_init(struct amdgpu_device *adev);
 int aldebaran_reg_base_init(struct amdgpu_device *adev);
+void aqua_vanjaram_ip_map_init(struct amdgpu_device *adev);
 
 void vega10_doorbell_index_init(struct amdgpu_device *adev);
 void vega20_doorbell_index_init(struct amdgpu_device *adev);
-- 
2.39.2