[PATCH 5/6] drm/amdgpu: add helper function to query dynamic boot config cap

[Hawking Zhang]

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

Signed-off-by: Hawking Zhang <Hawking.Zhang at amd.com>
Reviewed-by: Alex Deucher <alexander.deucher at amd.com>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_atomfirmware.c | 16 ++++++++++++++++
 drivers/gpu/drm/amd/amdgpu/amdgpu_atomfirmware.h |  1 +
 drivers/gpu/drm/amd/include/atomfirmware.h       |  1 +
 3 files changed, 18 insertions(+)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_atomfirmware.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_atomfirmware.c
index cfd009a..8c41701 100644
--- 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
--- 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 41d6018..14d0d7d5 100644
--- a/drivers/gpu/drm/amd/include/atomfirmware.h
+++ b/drivers/gpu/drm/amd/include/atomfirmware.h
@@ -505,6 +505,7 @@ 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{
-- 
2.7.4