[PATCH v1 04/15] drm/amdgpu: add print support for vcn_v4_0 ip dump

[Sunil Khatri]

Add support for logging the registers in devcoredump
buffer for vcn_v4_0.

Signed-off-by: Sunil Khatri <sunil.kha...@amd.com>
---
 drivers/gpu/drm/amd/amdgpu/vcn_v4_0.c | 34 ++++++++++++++++++++++++++-
 1 file changed, 33 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/vcn_v4_0.c 
b/drivers/gpu/drm/amd/amdgpu/vcn_v4_0.c
index 344e57bf49d2..a34a8594945f 100644
--- a/drivers/gpu/drm/amd/amdgpu/vcn_v4_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/vcn_v4_0.c
@@ -2248,6 +2248,38 @@ static void vcn_v4_0_set_irq_funcs(struct amdgpu_device 
*adev)
        }
 }
 
+static void vcn_v4_0_print_ip_state(void *handle, struct drm_printer *p)
+{
+       struct amdgpu_device *adev = (struct amdgpu_device *)handle;
+       int i, j;
+       uint32_t reg_count = ARRAY_SIZE(vcn_reg_list_4_0);
+       uint32_t inst_off, is_powered;
+
+       if (!adev->vcn.ip_dump)
+               return;
+
+       drm_printf(p, "num_instances:%d\n", adev->vcn.num_vcn_inst);
+       for (i = 0; i < adev->vcn.num_vcn_inst; i++) {
+               if (adev->vcn.harvest_config & (1 << i)) {
+                       drm_printf(p, "\nHarvested Instance:VCN%d Skipping 
dump\n", i);
+                       continue;
+               }
+
+               inst_off = i * reg_count;
+               is_powered = (adev->vcn.ip_dump[inst_off] &
+                               UVD_POWER_STATUS__UVD_POWER_STATUS_MASK) != 1;
+
+               if (is_powered) {
+                       drm_printf(p, "\nActive Instance:VCN%d\n", i);
+                       for (j = 0; j < reg_count; j++)
+                               drm_printf(p, "%-50s \t 0x%08x\n", 
vcn_reg_list_4_0[j].reg_name,
+                                          adev->vcn.ip_dump[inst_off + j]);
+               } else {
+                       drm_printf(p, "\nInactive Instance:VCN%d\n", i);
+               }
+       }
+}
+
 static void vcn_v4_0_dump_ip_state(void *handle)
 {
        struct amdgpu_device *adev = (struct amdgpu_device *)handle;
@@ -2295,7 +2327,7 @@ static const struct amd_ip_funcs vcn_v4_0_ip_funcs = {
        .set_clockgating_state = vcn_v4_0_set_clockgating_state,
        .set_powergating_state = vcn_v4_0_set_powergating_state,
        .dump_ip_state = vcn_v4_0_dump_ip_state,
-       .print_ip_state = NULL,
+       .print_ip_state = vcn_v4_0_print_ip_state,
 };
 
 const struct amdgpu_ip_block_version vcn_v4_0_ip_block = {
-- 
2.34.1