5 files changed, 10 insertions, 28 deletions

diff --git a/drivers/gpu/nvgpu/Kconfig b/drivers/gpu/nvgpu/Kconfig
index 6797a719..5ebb96e3 100644
--- a/drivers/gpu/nvgpu/Kconfig
+++ b/drivers/gpu/nvgpu/Kconfig
@@ -12,14 +12,6 @@ config GK20A_DEFAULT_TIMEOUT
         help
           Default timeout for jobs in milliseconds. Set to zero for no timeout.
 
-config GK20A_CDE
-        depends on GK20A
-        bool "Support compression bit switzzling through CDE"
-        default n
-        help
-          Say Y to allow compression bit swizzling
-          using pre-compiled shader.
-
 config GK20A_PMU
         bool "Support GK20A PMU"
         depends on GK20A
diff --git a/drivers/gpu/nvgpu/gk20a/cde_gk20a.c b/drivers/gpu/nvgpu/gk20a/cde_gk20a.c
index 22a422a3..d9fe9ef1 100644
--- a/drivers/gpu/nvgpu/gk20a/cde_gk20a.c
+++ b/drivers/gpu/nvgpu/gk20a/cde_gk20a.c
@@ -879,16 +879,8 @@ int gk20a_cde_reload(struct gk20a *g)
         struct gk20a_cde_ctx *cde_ctx = cde_app->cde_ctx;
         int err, i;
 
-        if (!cde_app->initialised) {
-                err = gk20a_busy(g->dev);
-                if (err)
-                        return err;
-                gk20a_init_cde_support(g);
-                gk20a_idle(g->dev);
-                if (!cde_app->initialised)
-                        return -ENOSYS;
-                return 0;
-        }
+        if (!cde_app->initialised)
+                return -ENOSYS;
 
         err = gk20a_busy(g->dev);
         if (err)
@@ -1044,11 +1036,8 @@ static int gk20a_buffer_convert_gpu_to_cde(
         const int gridw = roundup(xtiles, xalign) / xalign;
         const int gridh = roundup(ytiles, yalign) / yalign;
 
-        if (!g->cde_app.initialised) {
-                err = gk20a_cde_reload(g);
-                if (err)
-                        return err;
-        }
+        if (!g->cde_app.initialised)
+                return -ENOSYS;
 
         if (xtiles > 4096 / 8 || ytiles > 4096 / 8)
                 gk20a_warn(&g->dev->dev, "cde: surface is exceptionally large (xtiles=%d, ytiles=%d)",
@@ -1087,16 +1076,12 @@ static int gk20a_buffer_convert_gpu_to_cde(
         err = gk20a_busy(g->dev);
         if (err)
                 return err;
-        err = gk20a_init_cde_support(g);
-        if (err)
-                goto out;
         err = gk20a_cde_convert(g, dmabuf,
                                 0, /* dst kind */
                                 compbits_offset,
                                 0, /* dst_size, 0 = auto */
                                 fence_in, submit_flags,
                                 params, param, fence_out);
-out:
         gk20a_idle(g->dev);
         return err;
 }
diff --git a/drivers/gpu/nvgpu/gk20a/gk20a.c b/drivers/gpu/nvgpu/gk20a/gk20a.c
index 226b5ae3..5dda7d74 100644
--- a/drivers/gpu/nvgpu/gk20a/gk20a.c
+++ b/drivers/gpu/nvgpu/gk20a/gk20a.c
@@ -798,6 +798,7 @@ static int gk20a_pm_finalize_poweron(struct device *dev)
 {
         struct platform_device *pdev = to_platform_device(dev);
         struct gk20a *g = get_gk20a(pdev);
+        struct gk20a_platform *platform = gk20a_get_platform(pdev);
         int err, nice_value;
 
         gk20a_dbg_fn("");
@@ -939,7 +940,7 @@ static int gk20a_pm_finalize_poweron(struct device *dev)
 
         trace_gk20a_finalize_poweron_done(dev_name(dev));
 
-        if (IS_ENABLED(CONFIG_GK20A_CDE))
+        if (platform->has_cde)
                 gk20a_init_cde_support(g);
 
 #ifdef CONFIG_INPUT_CFBOOST
diff --git a/drivers/gpu/nvgpu/gk20a/platform_gk20a.h b/drivers/gpu/nvgpu/gk20a/platform_gk20a.h
index aada1537..d5a1cc91 100644
--- a/drivers/gpu/nvgpu/gk20a/platform_gk20a.h
+++ b/drivers/gpu/nvgpu/gk20a/platform_gk20a.h
@@ -160,6 +160,8 @@ struct gk20a_platform {
         u64 virt_handle;
         struct task_struct *intr_handler;
 #endif
+
+        bool has_cde;
 };
 
 static inline struct gk20a_platform *gk20a_get_platform(
diff --git a/drivers/gpu/nvgpu/gk20a/platform_gk20a_tegra.c b/drivers/gpu/nvgpu/gk20a/platform_gk20a_tegra.c
index ccbf932f..d7500929 100644
--- a/drivers/gpu/nvgpu/gk20a/platform_gk20a_tegra.c
+++ b/drivers/gpu/nvgpu/gk20a/platform_gk20a_tegra.c
@@ -543,4 +543,6 @@ struct gk20a_platform gm20b_tegra_platform = {
         .secure_alloc = gk20a_tegra_secure_alloc,
         .secure_page_alloc = gk20a_tegra_secure_page_alloc,
         .dump_platform_dependencies = gk20a_tegra_debug_dump,
+
+        .has_cde = true,
 };