gpu: nvgpu: Use debug sig for NVDEC if on dbg SKU

Debug fused chips do not have production signature. Use debug
signature for memory unlock binary. Requires also exporting a HAL
for checking debug mode from PMU.

Bug 200445202

Change-Id: I7f88ed6db2fe1c614fe9d4074dbf974c3817f453
Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1809225
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>

1 files changed, 15 insertions, 5 deletions

diff --git a/drivers/gpu/nvgpu/common/fb/fb_gv100.c b/drivers/gpu/nvgpu/common/fb/fb_gv100.c
index ce51a2c6..848d6efb 100644
--- a/drivers/gpu/nvgpu/common/fb/fb_gv100.c
+++ b/drivers/gpu/nvgpu/common/fb/fb_gv100.c
@@ -104,11 +104,20 @@ void gv100_fb_disable_hub_intr(struct gk20a *g)
  * @brief Patch signatures into ucode image
  */
 static int gv100_fb_acr_ucode_patch_sig(struct gk20a *g,
-                unsigned int *p_img,
-                unsigned int *p_sig,
-                unsigned int *p_patch_loc,
-                unsigned int *p_patch_ind)
+                u32 *p_img,
+                u32 *p_prod_sig,
+                u32 *p_dbg_sig,
+                u32 *p_patch_loc,
+                u32 *p_patch_ind)
 {
+        u32 *p_sig;
+
+        if (!g->ops.pmu.is_debug_mode_enabled(g)) {
+                p_sig = p_prod_sig;
+        } else {
+                p_sig = p_dbg_sig;
+        }
+
         /* Patching logic. We have just one location to patch. */
         p_img[(*p_patch_loc>>2)] = p_sig[(*p_patch_ind<<2)];
         p_img[(*p_patch_loc>>2)+1U] = p_sig[(*p_patch_ind<<2)+1U];
@@ -158,9 +167,10 @@ int gv100_fb_memory_unlock(struct gk20a *g)
         mem_unlock_ucode = (u32 *)(mem_unlock_fw->data +
                 hsbin_hdr->data_offset);
 
-        /* Patch Ucode singnatures */
+        /* Patch Ucode signatures */
         if (gv100_fb_acr_ucode_patch_sig(g, mem_unlock_ucode,
                 (u32 *)(mem_unlock_fw->data + fw_hdr->sig_prod_offset),
+                (u32 *)(mem_unlock_fw->data + fw_hdr->sig_dbg_offset),
                 (u32 *)(mem_unlock_fw->data + fw_hdr->patch_loc),
                 (u32 *)(mem_unlock_fw->data + fw_hdr->patch_sig)) < 0) {
                 nvgpu_err(g, "mem unlock patch signatures fail");