If GFX9 microcode is required but not available during early init, the
firmware framebuffer will have already been released and the screen will
freeze.

Signed-off-by: Mario Limonciello <mario.limoncie...@amd.com>
---
v3->v4:
 * Move microcode load phase to early init
v2->v3:
 * Fix issues found on real hardware where num_gfx_rings not set during
   discovery
---
 drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c | 58 +++++----------------------
 1 file changed, 9 insertions(+), 49 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c 
b/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
index 27040821d764..4e9c230e42ca 100644
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
@@ -1251,7 +1251,7 @@ static void gfx_v9_0_check_if_need_gfxoff(struct 
amdgpu_device *adev)
 }
 
 static int gfx_v9_0_init_cp_gfx_microcode(struct amdgpu_device *adev,
-                                         const char *chip_name)
+                                         char *chip_name)
 {
        char fw_name[30];
        int err;
@@ -1287,7 +1287,7 @@ static int gfx_v9_0_init_cp_gfx_microcode(struct 
amdgpu_device *adev,
 }
 
 static int gfx_v9_0_init_rlc_microcode(struct amdgpu_device *adev,
-                                         const char *chip_name)
+                                      char *chip_name)
 {
        char fw_name[30];
        int err;
@@ -1344,7 +1344,7 @@ static bool gfx_v9_0_load_mec2_fw_bin_support(struct 
amdgpu_device *adev)
 }
 
 static int gfx_v9_0_init_cp_compute_microcode(struct amdgpu_device *adev,
-                                         const char *chip_name)
+                                             char *chip_name)
 {
        char fw_name[30];
        int err;
@@ -1392,58 +1392,24 @@ static int gfx_v9_0_init_cp_compute_microcode(struct 
amdgpu_device *adev,
 
 static int gfx_v9_0_init_microcode(struct amdgpu_device *adev)
 {
-       const char *chip_name;
+       char ucode_prefix[30];
        int r;
 
        DRM_DEBUG("\n");
-
-       switch (adev->ip_versions[GC_HWIP][0]) {
-       case IP_VERSION(9, 0, 1):
-               chip_name = "vega10";
-               break;
-       case IP_VERSION(9, 2, 1):
-               chip_name = "vega12";
-               break;
-       case IP_VERSION(9, 4, 0):
-               chip_name = "vega20";
-               break;
-       case IP_VERSION(9, 2, 2):
-       case IP_VERSION(9, 1, 0):
-               if (adev->apu_flags & AMD_APU_IS_RAVEN2)
-                       chip_name = "raven2";
-               else if (adev->apu_flags & AMD_APU_IS_PICASSO)
-                       chip_name = "picasso";
-               else
-                       chip_name = "raven";
-               break;
-       case IP_VERSION(9, 4, 1):
-               chip_name = "arcturus";
-               break;
-       case IP_VERSION(9, 3, 0):
-               if (adev->apu_flags & AMD_APU_IS_RENOIR)
-                       chip_name = "renoir";
-               else
-                       chip_name = "green_sardine";
-               break;
-       case IP_VERSION(9, 4, 2):
-               chip_name = "aldebaran";
-               break;
-       default:
-               BUG();
-       }
+       amdgpu_ucode_ip_version_decode(adev, GC_HWIP, ucode_prefix, 
sizeof(ucode_prefix));
 
        /* No CPG in Arcturus */
        if (adev->gfx.num_gfx_rings) {
-               r = gfx_v9_0_init_cp_gfx_microcode(adev, chip_name);
+               r = gfx_v9_0_init_cp_gfx_microcode(adev, ucode_prefix);
                if (r)
                        return r;
        }
 
-       r = gfx_v9_0_init_rlc_microcode(adev, chip_name);
+       r = gfx_v9_0_init_rlc_microcode(adev, ucode_prefix);
        if (r)
                return r;
 
-       r = gfx_v9_0_init_cp_compute_microcode(adev, chip_name);
+       r = gfx_v9_0_init_cp_compute_microcode(adev, ucode_prefix);
        if (r)
                return r;
 
@@ -2131,12 +2097,6 @@ static int gfx_v9_0_sw_init(void *handle)
 
        adev->gfx.gfx_current_status = AMDGPU_GFX_NORMAL_MODE;
 
-       r = gfx_v9_0_init_microcode(adev);
-       if (r) {
-               DRM_ERROR("Failed to load gfx firmware!\n");
-               return r;
-       }
-
        if (adev->gfx.rlc.funcs) {
                if (adev->gfx.rlc.funcs->init) {
                        r = adev->gfx.rlc.funcs->init(adev);
@@ -4578,7 +4538,7 @@ static int gfx_v9_0_early_init(void *handle)
        /* init rlcg reg access ctrl */
        gfx_v9_0_init_rlcg_reg_access_ctrl(adev);
 
-       return 0;
+       return gfx_v9_0_init_microcode(adev);
 }
 
 static int gfx_v9_0_ecc_late_init(void *handle)
-- 
2.34.1

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