[PATCH 15/16] drm/amd/powerplay: add firmware cleanup on sw_fini

[Evan Quan]

To avoid possible memory leak.

Change-Id: I4740eac7fc2c6e934ec8f503e5a98057f0902f4a
Signed-off-by: Evan Quan <evan.quan at amd.com>
Reviewed-by: Alex Deucher <alexander.deucher at amd.com>
---
 drivers/gpu/drm/amd/powerplay/amdgpu_smu.c     | 2 ++
 drivers/gpu/drm/amd/powerplay/arcturus_ppt.c   | 1 +
 drivers/gpu/drm/amd/powerplay/inc/amdgpu_smu.h | 1 +
 drivers/gpu/drm/amd/powerplay/inc/smu_v11_0.h  | 2 ++
 drivers/gpu/drm/amd/powerplay/navi10_ppt.c     | 1 +
 drivers/gpu/drm/amd/powerplay/smu_internal.h   | 2 ++
 drivers/gpu/drm/amd/powerplay/smu_v11_0.c      | 9 +++++++++
 7 files changed, 18 insertions(+)

diff --git a/drivers/gpu/drm/amd/powerplay/amdgpu_smu.c b/drivers/gpu/drm/amd/powerplay/amdgpu_smu.c
index 23eb64ae7432..d9a9d9723be1 100644
--- a/drivers/gpu/drm/amd/powerplay/amdgpu_smu.c
+++ b/drivers/gpu/drm/amd/powerplay/amdgpu_smu.c
@@ -1108,6 +1108,8 @@ static int smu_sw_fini(void *handle)
 		return ret;
 	}
 
+	smu_fini_microcode(smu);
+
 	return 0;
 }
 
diff --git a/drivers/gpu/drm/amd/powerplay/arcturus_ppt.c b/drivers/gpu/drm/amd/powerplay/arcturus_ppt.c
index 9eb57bec27e1..05abfdedcf37 100644
--- a/drivers/gpu/drm/amd/powerplay/arcturus_ppt.c
+++ b/drivers/gpu/drm/amd/powerplay/arcturus_ppt.c
@@ -2469,6 +2469,7 @@ static const struct pptable_funcs arcturus_ppt_funcs = {
 	.get_unique_id = arcturus_get_unique_id,
 	.init_microcode = smu_v11_0_init_microcode,
 	.load_microcode = smu_v11_0_load_microcode,
+	.fini_microcode = smu_v11_0_fini_microcode,
 	.init_smc_tables = smu_v11_0_init_smc_tables,
 	.fini_smc_tables = smu_v11_0_fini_smc_tables,
 	.init_power = smu_v11_0_init_power,
diff --git a/drivers/gpu/drm/amd/powerplay/inc/amdgpu_smu.h b/drivers/gpu/drm/amd/powerplay/inc/amdgpu_smu.h
index 90bb61c159fb..c0e761d4b31a 100644
--- a/drivers/gpu/drm/amd/powerplay/inc/amdgpu_smu.h
+++ b/drivers/gpu/drm/amd/powerplay/inc/amdgpu_smu.h
@@ -496,6 +496,7 @@ struct pptable_funcs {
 	int (*get_dpm_clock_table)(struct smu_context *smu, struct dpm_clocks *clock_table);
 	int (*init_microcode)(struct smu_context *smu);
 	int (*load_microcode)(struct smu_context *smu);
+	void (*fini_microcode)(struct smu_context *smu);
 	int (*init_smc_tables)(struct smu_context *smu);
 	int (*fini_smc_tables)(struct smu_context *smu);
 	int (*init_power)(struct smu_context *smu);
diff --git a/drivers/gpu/drm/amd/powerplay/inc/smu_v11_0.h b/drivers/gpu/drm/amd/powerplay/inc/smu_v11_0.h
index c442fc992d2e..91fe6f9b4c98 100644
--- a/drivers/gpu/drm/amd/powerplay/inc/smu_v11_0.h
+++ b/drivers/gpu/drm/amd/powerplay/inc/smu_v11_0.h
@@ -146,6 +146,8 @@ enum smu_v11_0_baco_seq {
 
 int smu_v11_0_init_microcode(struct smu_context *smu);
 
+void smu_v11_0_fini_microcode(struct smu_context *smu);
+
 int smu_v11_0_load_microcode(struct smu_context *smu);
 
 int smu_v11_0_init_smc_tables(struct smu_context *smu);
diff --git a/drivers/gpu/drm/amd/powerplay/navi10_ppt.c b/drivers/gpu/drm/amd/powerplay/navi10_ppt.c
index 4c1c4af2249b..8dd916a8e8f8 100644
--- a/drivers/gpu/drm/amd/powerplay/navi10_ppt.c
+++ b/drivers/gpu/drm/amd/powerplay/navi10_ppt.c
@@ -2310,6 +2310,7 @@ static const struct pptable_funcs navi10_ppt_funcs = {
 	.update_pcie_parameters = navi10_update_pcie_parameters,
 	.init_microcode = smu_v11_0_init_microcode,
 	.load_microcode = smu_v11_0_load_microcode,
+	.fini_microcode = smu_v11_0_fini_microcode,
 	.init_smc_tables = smu_v11_0_init_smc_tables,
 	.fini_smc_tables = smu_v11_0_fini_smc_tables,
 	.init_power = smu_v11_0_init_power,
diff --git a/drivers/gpu/drm/amd/powerplay/smu_internal.h b/drivers/gpu/drm/amd/powerplay/smu_internal.h
index 9dce366a6f5f..927d75ff1ac9 100644
--- a/drivers/gpu/drm/amd/powerplay/smu_internal.h
+++ b/drivers/gpu/drm/amd/powerplay/smu_internal.h
@@ -27,6 +27,8 @@
 
 #define smu_init_microcode(smu) \
 	((smu)->ppt_funcs->init_microcode ? (smu)->ppt_funcs->init_microcode((smu)) : 0)
+#define smu_fini_microcode(smu) \
+	((smu)->ppt_funcs->fini_microcode ? (smu)->ppt_funcs->fini_microcode((smu)) : 0)
 #define smu_init_smc_tables(smu) \
 	((smu)->ppt_funcs->init_smc_tables ? (smu)->ppt_funcs->init_smc_tables((smu)) : 0)
 #define smu_fini_smc_tables(smu) \
diff --git a/drivers/gpu/drm/amd/powerplay/smu_v11_0.c b/drivers/gpu/drm/amd/powerplay/smu_v11_0.c
index 6c53488acd68..87132a58c985 100644
--- a/drivers/gpu/drm/amd/powerplay/smu_v11_0.c
+++ b/drivers/gpu/drm/amd/powerplay/smu_v11_0.c
@@ -199,6 +199,15 @@ int smu_v11_0_init_microcode(struct smu_context *smu)
 	return err;
 }
 
+void smu_v11_0_fini_microcode(struct smu_context *smu)
+{
+	struct amdgpu_device *adev = smu->adev;
+
+	release_firmware(adev->pm.fw);
+	adev->pm.fw = NULL;
+	adev->pm.fw_version = 0;
+}
+
 int smu_v11_0_load_microcode(struct smu_context *smu)
 {
 	struct amdgpu_device *adev = smu->adev;
-- 
2.27.0