drm/msm/a6xx: Don't enable GPU state code if dependencies are missing

Add CONFIG_DRM_MSM_GPU_STATE to conditionally compile Adreno GPU state
code depending on the availability of the dependencies.

Reported-by: Hulk Robot <hulkci@huawei.com>
Reported-by: YueHaibing <yuehaibing@huawei.com>
Fixes: 1707add81551 ("drm/msm/a6xx: Add a6xx gpu state")
Signed-off-by: Jordan Crouse <jcrouse@codeaurora.org>
Signed-off-by: Rob Clark <robdclark@chromium.org>

4 files changed, 11 insertions, 3 deletions

diff --git a/drivers/gpu/drm/msm/Kconfig b/drivers/gpu/drm/msm/Kconfig
index 78c9e5a5e793..9f2029eca39f 100644
--- a/drivers/gpu/drm/msm/Kconfig
+++ b/drivers/gpu/drm/msm/Kconfig
@@ -21,6 +21,11 @@ config DRM_MSM
         help
           DRM/KMS driver for MSM/snapdragon.
 
+config DRM_MSM_GPU_STATE
+        bool
+        depends on DRM_MSM && (DEBUG_FS || DEV_COREDUMP)
+        default y
+
 config DRM_MSM_REGISTER_LOGGING
         bool "MSM DRM register logging"
         depends on DRM_MSM
diff --git a/drivers/gpu/drm/msm/Makefile b/drivers/gpu/drm/msm/Makefile
index 56a70c74af4e..72d1bfcaab7a 100644
--- a/drivers/gpu/drm/msm/Makefile
+++ b/drivers/gpu/drm/msm/Makefile
@@ -15,7 +15,6 @@ msm-y := \
         adreno/a6xx_gpu.o \
         adreno/a6xx_gmu.o \
         adreno/a6xx_hfi.o \
-        adreno/a6xx_gpu_state.o \
         hdmi/hdmi.o \
         hdmi/hdmi_audio.o \
         hdmi/hdmi_bridge.o \
@@ -96,6 +95,8 @@ msm-y := \
 
 msm-$(CONFIG_DEBUG_FS) += adreno/a5xx_debugfs.o
 
+msm-$(CONFIG_DRM_MSM_GPU_STATE) += adreno/a6xx_gpu_state.o
+
 msm-$(CONFIG_DRM_FBDEV_EMULATION) += msm_fbdev.o
 msm-$(CONFIG_COMMON_CLK) += disp/mdp4/mdp4_lvds_pll.o
 msm-$(CONFIG_COMMON_CLK) += hdmi/hdmi_pll_8960.o
diff --git a/drivers/gpu/drm/msm/adreno/a6xx_gpu.c b/drivers/gpu/drm/msm/adreno/a6xx_gpu.c
index 7028bb784427..ec24508b9d68 100644
--- a/drivers/gpu/drm/msm/adreno/a6xx_gpu.c
+++ b/drivers/gpu/drm/msm/adreno/a6xx_gpu.c
@@ -807,14 +807,16 @@ static const struct adreno_gpu_funcs funcs = {
                 .active_ring = a6xx_active_ring,
                 .irq = a6xx_irq,
                 .destroy = a6xx_destroy,
-#if defined(CONFIG_DEBUG_FS) || defined(CONFIG_DEV_COREDUMP)
+#if defined(CONFIG_DRM_MSM_GPU_STATE)
                 .show = a6xx_show,
 #endif
                 .gpu_busy = a6xx_gpu_busy,
                 .gpu_get_freq = a6xx_gmu_get_freq,
                 .gpu_set_freq = a6xx_gmu_set_freq,
+#if defined(CONFIG_DRM_MSM_GPU_STATE)
                 .gpu_state_get = a6xx_gpu_state_get,
                 .gpu_state_put = a6xx_gpu_state_put,
+#endif
         },
         .get_timestamp = a6xx_get_timestamp,
 };
diff --git a/drivers/gpu/drm/msm/msm_debugfs.c b/drivers/gpu/drm/msm/msm_debugfs.c
index fb423d309e91..67ef300559cf 100644
--- a/drivers/gpu/drm/msm/msm_debugfs.c
+++ b/drivers/gpu/drm/msm/msm_debugfs.c
@@ -75,7 +75,7 @@ static int msm_gpu_open(struct inode *inode, struct file *file)
         struct msm_gpu_show_priv *show_priv;
         int ret;
 
-        if (!gpu)
+        if (!gpu || !gpu->funcs->gpu_state_get)
                 return -ENODEV;
 
         show_priv = kmalloc(sizeof(*show_priv), GFP_KERNEL);