drm/amd/powerplay: cache the watermark settings on system memory

So that we do not need to allocate a piece of VRAM for it. This
is a preparation for coming change which unifies the VRAM address
for all driver tables interaction with SMU.

Signed-off-by: Evan Quan <evan.quan@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

diff --git a/drivers/gpu/drm/amd/powerplay/amdgpu_smu.c b/drivers/gpu/drm/amd/powerplay/amdgpu_smu.c
index d432ba0..3b62758 100644 (file)
--- a/drivers/gpu/drm/amd/powerplay/amdgpu_smu.c
+++ b/drivers/gpu/drm/amd/powerplay/amdgpu_smu.c
@@ -1929,32 +1929,25 @@ int smu_set_df_cstate(struct smu_context *smu,
 
 int smu_write_watermarks_table(struct smu_context *smu)
 {
-       int ret = 0;
-       struct smu_table_context *smu_table = &smu->smu_table;
-       struct smu_table *table = NULL;
+       void *watermarks_table = smu->smu_table.watermarks_table;
 
-       table = &smu_table->tables[SMU_TABLE_WATERMARKS];
-
-       if (!table->cpu_addr)
+       if (!watermarks_table)
                return -EINVAL;
 
-       ret = smu_update_table(smu, SMU_TABLE_WATERMARKS, 0, table->cpu_addr,
+       return smu_update_table(smu,
+                               SMU_TABLE_WATERMARKS,
+                               0,
+                               watermarks_table,
                                true);
-
-       return ret;
 }
 
 int smu_set_watermarks_for_clock_ranges(struct smu_context *smu,
                struct dm_pp_wm_sets_with_clock_ranges_soc15 *clock_ranges)
 {
-       struct smu_table *watermarks;
-       void *table;
-
-       if (!smu->smu_table.tables)
-               return 0;
+       void *table = smu->smu_table.watermarks_table;
 
-       watermarks = &smu->smu_table.tables[SMU_TABLE_WATERMARKS];
-       table = watermarks->cpu_addr;
+       if (!table)
+               return -EINVAL;
 
        mutex_lock(&smu->mutex);
 

diff --git a/drivers/gpu/drm/amd/powerplay/inc/amdgpu_smu.h b/drivers/gpu/drm/amd/powerplay/inc/amdgpu_smu.h
index 5ddadd2..02d33b5 100644 (file)
--- a/drivers/gpu/drm/amd/powerplay/inc/amdgpu_smu.h
+++ b/drivers/gpu/drm/amd/powerplay/inc/amdgpu_smu.h
@@ -254,6 +254,7 @@ struct smu_table_context
        unsigned long                   metrics_time;
        void                            *metrics_table;
        void                            *clocks_table;
+       void                            *watermarks_table;
 
        void                            *max_sustainable_clocks;
        struct smu_bios_boot_up_values  boot_values;

diff --git a/drivers/gpu/drm/amd/powerplay/navi10_ppt.c b/drivers/gpu/drm/amd/powerplay/navi10_ppt.c
index 455f1ef..5fcfa6e 100644 (file)
--- a/drivers/gpu/drm/amd/powerplay/navi10_ppt.c
+++ b/drivers/gpu/drm/amd/powerplay/navi10_ppt.c
@@ -555,6 +555,10 @@ static int navi10_tables_init(struct smu_context *smu, struct smu_table *tables)
                return -ENOMEM;
        smu_table->metrics_time = 0;
 
+       smu_table->watermarks_table = kzalloc(sizeof(Watermarks_t), GFP_KERNEL);
+       if (!smu_table->watermarks_table)
+               return -ENOMEM;
+
        return 0;
 }
 

diff --git a/drivers/gpu/drm/amd/powerplay/renoir_ppt.c b/drivers/gpu/drm/amd/powerplay/renoir_ppt.c
index e73644b..506cc6b 100644 (file)
--- a/drivers/gpu/drm/amd/powerplay/renoir_ppt.c
+++ b/drivers/gpu/drm/amd/powerplay/renoir_ppt.c
@@ -209,6 +209,10 @@ static int renoir_tables_init(struct smu_context *smu, struct smu_table *tables)
                return -ENOMEM;
        smu_table->metrics_time = 0;
 
+       smu_table->watermarks_table = kzalloc(sizeof(Watermarks_t), GFP_KERNEL);
+       if (!smu_table->watermarks_table)
+               return -ENOMEM;
+
        return 0;
 }
 

diff --git a/drivers/gpu/drm/amd/powerplay/smu_v11_0.c b/drivers/gpu/drm/amd/powerplay/smu_v11_0.c
index a858264..6fb93eb 100644 (file)
--- a/drivers/gpu/drm/amd/powerplay/smu_v11_0.c
+++ b/drivers/gpu/drm/amd/powerplay/smu_v11_0.c
@@ -450,8 +450,10 @@ int smu_v11_0_fini_smc_tables(struct smu_context *smu)
 
        kfree(smu_table->tables);
        kfree(smu_table->metrics_table);
+       kfree(smu_table->watermarks_table);
        smu_table->tables = NULL;
        smu_table->metrics_table = NULL;
+       smu_table->watermarks_table = NULL;
        smu_table->metrics_time = 0;
 
        ret = smu_v11_0_fini_dpm_context(smu);

diff --git a/drivers/gpu/drm/amd/powerplay/vega20_ppt.c b/drivers/gpu/drm/amd/powerplay/vega20_ppt.c
index 534c46b..27bdcde 100644 (file)
--- a/drivers/gpu/drm/amd/powerplay/vega20_ppt.c
+++ b/drivers/gpu/drm/amd/powerplay/vega20_ppt.c
@@ -338,6 +338,10 @@ static int vega20_tables_init(struct smu_context *smu, struct smu_table *tables)
                return -ENOMEM;
        smu_table->metrics_time = 0;
 
+       smu_table->watermarks_table = kzalloc(sizeof(Watermarks_t), GFP_KERNEL);
+       if (!smu_table->watermarks_table)
+               return -ENOMEM;
+
        return 0;
 }