drm/amdgpu: add helper function to query dynamic boot config cap

Check firmware flags to determine whether dynmaic
boot config is supported or not.

Signed-off-by: Hawking Zhang <Hawking.Zhang@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: John Clements <john.clements@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_atomfirmware.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_atomfirmware.c
index cfd009a..8c41701 100644 (file)
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_atomfirmware.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_atomfirmware.c
@@ -452,6 +452,22 @@ bool amdgpu_atomfirmware_sram_ecc_supported(struct amdgpu_device *adev)
        return (fw_cap & ATOM_FIRMWARE_CAP_SRAM_ECC) ? true : false;
 }
 
+/*
+ * Helper function to query dynamic boot config capability
+ *
+ * @adev: amdgpu_device pointer
+ *
+ * Return true if vbios supports dynamic boot config or false if not
+ */
+bool amdgpu_atomfirmware_dynamic_boot_config_supported(struct amdgpu_device *adev)
+{
+       u32 fw_cap;
+
+       fw_cap = adev->mode_info.firmware_flags;
+
+       return (fw_cap & ATOM_FIRMWARE_CAP_DYNAMIC_BOOT_CFG_ENABLE) ? true : false;
+}
+
 union smu_info {
        struct atom_smu_info_v3_1 v31;
 };

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_atomfirmware.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_atomfirmware.h
index 8be95d8..1bbbb19 100644 (file)
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_atomfirmware.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_atomfirmware.h
@@ -37,6 +37,7 @@ int amdgpu_atomfirmware_get_gfx_info(struct amdgpu_device *adev);
 bool amdgpu_atomfirmware_mem_ecc_supported(struct amdgpu_device *adev);
 bool amdgpu_atomfirmware_sram_ecc_supported(struct amdgpu_device *adev);
 bool amdgpu_atomfirmware_mem_training_supported(struct amdgpu_device *adev);
+bool amdgpu_atomfirmware_dynamic_boot_config_supported(struct amdgpu_device *adev);
 int amdgpu_atomfirmware_get_fw_reserved_fb_size(struct amdgpu_device *adev);
 
 #endif

diff --git a/drivers/gpu/drm/amd/include/atomfirmware.h b/drivers/gpu/drm/amd/include/atomfirmware.h
index f2564ba..2aa6d27 100644 (file)
--- a/drivers/gpu/drm/amd/include/atomfirmware.h
+++ b/drivers/gpu/drm/amd/include/atomfirmware.h
@@ -501,6 +501,7 @@ enum atombios_firmware_capability
        ATOM_FIRMWARE_CAP_SRAM_ECC      = 0x00000200,
        ATOM_FIRMWARE_CAP_ENABLE_2STAGE_BIST_TRAINING  = 0x00000400,
        ATOM_FIRMWARE_CAP_ENABLE_2ND_USB20PORT = 0x0008000,
+       ATOM_FIRMWARE_CAP_DYNAMIC_BOOT_CFG_ENABLE = 0x0020000,
 };
 
 enum atom_cooling_solution_id{