[PATCH] drm/amdgpu: Fix none-powerplay issue when load driver on emulation mode

[Shaoyun Liu]

On emulation mode , driver will be loaded with powerplay disabled

Change-Id: I22c343d990f9a306b033728a1cb560c1e8a4677f
Signed-off-by: Shaoyun Liu <Shaoyun.Liu at amd.com>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c | 8 ++++++++
 drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 3 +++
 drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c     | 6 ++++--
 3 files changed, 15 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c
index 2d99099..7bca99d 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c
@@ -398,6 +398,11 @@ void get_local_mem_info(struct kgd_dev *kgd,
 			mem_info->local_mem_size_public,
 			mem_info->local_mem_size_private);
 
+	if (amdgpu_emu_mode == 1) {
+		mem_info->mem_clk_max = 100;
+		return;
+	}
+
 	if (amdgpu_sriov_vf(adev))
 		mem_info->mem_clk_max = adev->clock.default_mclk / 100;
 	else
@@ -418,6 +423,9 @@ uint32_t get_max_engine_clock_in_mhz(struct kgd_dev *kgd)
 	struct amdgpu_device *adev = (struct amdgpu_device *)kgd;
 
 	/* the sclk is in quantas of 10kHz */
+	if (amdgpu_emu_mode == 1)
+		return 100;
+
 	if (amdgpu_sriov_vf(adev))
 		return adev->clock.default_sclk / 100;
 
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
index fe7a941..ab6068c 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
@@ -1420,6 +1420,9 @@ static int amdgpu_device_ip_late_set_cg_state(struct amdgpu_device *adev)
 {
 	int i = 0, r;
 
+	if (amdgpu_emu_mode == 1)
+		return 0;
+
 	for (i = 0; i < adev->num_ip_blocks; i++) {
 		if (!adev->ip_blocks[i].status.valid)
 			continue;
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
index 6270131..1b2b039 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
@@ -2372,7 +2372,8 @@ int amdgpu_vm_init(struct amdgpu_device *adev, struct amdgpu_vm *vm,
 		mutex_lock(&id_mgr->lock);
 
 		if ((adev->vm_manager.n_compute_vms++ == 0) &&
-			(!amdgpu_sriov_vf(adev))) {
+			(!amdgpu_sriov_vf(adev)) &&
+			(amdgpu_emu_mode != 1)) {
 			/* First Compute VM: enable compute power profile */
 			if (adev->powerplay.pp_funcs->switch_power_profile)
 				amdgpu_dpm_switch_power_profile(adev,
@@ -2461,7 +2462,8 @@ void amdgpu_vm_fini(struct amdgpu_device *adev, struct amdgpu_vm *vm)
 		WARN(adev->vm_manager.n_compute_vms == 0, "Unbalanced number of Compute VMs");
 
 		if ((--adev->vm_manager.n_compute_vms == 0) &&
-			(!amdgpu_sriov_vf(adev))) {
+			(!amdgpu_sriov_vf(adev)) &&
+			(amdgpu_emu_mode != 1)) {
 			/* Last KFD VM: enable graphics power profile */
 			if (adev->powerplay.pp_funcs->switch_power_profile)
 				amdgpu_dpm_switch_power_profile(adev,
-- 
1.9.1