Hi Hawking,

Do you mean SRIOV may need this change also? 
Currently this covers bare-metal case only(SRIOV still follows old firmwares 
loading sequence).

Regards,
Evan
-----Original Message-----
From: Zhang, Hawking <hawking.zh...@amd.com> 
Sent: Monday, February 24, 2020 7:34 PM
To: Quan, Evan <evan.q...@amd.com>; amd-gfx@lists.freedesktop.org; Min, Frank 
<frank....@amd.com>
Cc: Feng, Kenneth <kenneth.f...@amd.com>
Subject: RE: [PATCH] drm/amdgpu: update psp firmwares loading sequence V2

[AMD Official Use Only - Internal Distribution Only]

The patch looks good for bare-metal case now. Frank is still on the way to 
clean up our concern on SETUP_VMR command (i.e. SETUP_TMR for bare-metal case). 
After that settled, please push the patch with my RB. Thanks.

Regards,
Hawking
-----Original Message-----
From: Quan, Evan <evan.q...@amd.com> 
Sent: Monday, February 24, 2020 18:36
To: amd-gfx@lists.freedesktop.org
Cc: Zhang, Hawking <hawking.zh...@amd.com>; Feng, Kenneth 
<kenneth.f...@amd.com>; Quan, Evan <evan.q...@amd.com>
Subject: [PATCH] drm/amdgpu: update psp firmwares loading sequence V2

For those ASICs with DF Cstate management centralized to PMFW, TMR setup should 
be performed between pmfw loading and other non-psp firmwares loading.

V2: skip possible SMU firmware reloading

Change-Id: I8986ddb4d9ffe63ed0823d1dce8d9d52812a1240
Signed-off-by: Evan Quan <evan.q...@amd.com>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c | 65 ++++++++++++++++++++++---  
drivers/gpu/drm/amd/amdgpu/amdgpu_psp.h |  2 +
 2 files changed, 61 insertions(+), 6 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c 
b/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c
index 51839ab02b84..d33f74100094 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c
@@ -38,6 +38,39 @@
 
 static void psp_set_funcs(struct amdgpu_device *adev);
 
+/*
+ * Due to DF Cstate management centralized to PMFW, the firmware
+ * loading sequence will be updated as below:
+ *   - Load KDB
+ *   - Load SYS_DRV
+ *   - Load tOS
+ *   - Load PMFW
+ *   - Setup TMR
+ *   - Load other non-psp fw
+ *   - Load ASD
+ *   - Load XGMI/RAS/HDCP/DTM TA if any
+ *
+ * This new sequence is required for
+ *   - Arcturus
+ *   - Navi12 and onwards
+ */
+static void psp_check_pmfw_centralized_cstate_management(struct 
+psp_context *psp) {
+       struct amdgpu_device *adev = psp->adev;
+
+       psp->pmfw_centralized_cstate_management = false;
+
+       if (amdgpu_sriov_vf(adev))
+               return;
+
+       if (adev->flags & AMD_IS_APU)
+               return;
+
+       if ((adev->asic_type == CHIP_ARCTURUS) ||
+           (adev->asic_type >= CHIP_NAVI12))
+               psp->pmfw_centralized_cstate_management = true; }
+
 static int psp_early_init(void *handle)  {
        struct amdgpu_device *adev = (struct amdgpu_device *)handle; @@ -75,6 
+108,8 @@ static int psp_early_init(void *handle)
 
        psp->adev = adev;
 
+       psp_check_pmfw_centralized_cstate_management(psp);
+
        return 0;
 }
 
@@ -1116,10 +1151,17 @@ static int psp_hw_start(struct psp_context *psp)
                return ret;
        }
 
-       ret = psp_tmr_load(psp);
-       if (ret) {
-               DRM_ERROR("PSP load tmr failed!\n");
-               return ret;
+       /*
+        * For those ASICs with DF Cstate management centralized
+        * to PMFW, TMR setup should be performed after PMFW
+        * loaded and before other non-psp firmware loaded.
+        */
+       if (!psp->pmfw_centralized_cstate_management) {
+               ret = psp_tmr_load(psp);
+               if (ret) {
+                       DRM_ERROR("PSP load tmr failed!\n");
+                       return ret;
+               }
        }
 
        return 0;
@@ -1316,7 +1358,8 @@ static int psp_np_fw_load(struct psp_context *psp)
        struct amdgpu_firmware_info *ucode;
        struct amdgpu_device* adev = psp->adev;
 
-       if (psp->autoload_supported) {
+       if (psp->autoload_supported ||
+           psp->pmfw_centralized_cstate_management) {
                ucode = &adev->firmware.ucode[AMDGPU_UCODE_ID_SMC];
                if (!ucode->fw || amdgpu_sriov_vf(adev))
                        goto out;
@@ -1326,6 +1369,14 @@ static int psp_np_fw_load(struct psp_context *psp)
                        return ret;
        }
 
+       if (psp->pmfw_centralized_cstate_management) {
+               ret = psp_tmr_load(psp);
+               if (ret) {
+                       DRM_ERROR("PSP load tmr failed!\n");
+                       return ret;
+               }
+       }
+
 out:
        for (i = 0; i < adev->firmware.max_ucodes; i++) {
                ucode = &adev->firmware.ucode[i];
@@ -1333,7 +1384,9 @@ static int psp_np_fw_load(struct psp_context *psp)
                        continue;
 
                if (ucode->ucode_id == AMDGPU_UCODE_ID_SMC &&
-                   (psp_smu_reload_quirk(psp) || psp->autoload_supported))
+                   (psp_smu_reload_quirk(psp) ||
+                    psp->autoload_supported ||
+                    psp->pmfw_centralized_cstate_management))
                        continue;
 
                if (amdgpu_sriov_vf(adev) &&
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.h 
b/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.h
index c77e1abb538a..37fa184f27f6 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.h
@@ -264,6 +264,8 @@ struct psp_context
        atomic_t                        fence_value;
        /* flag to mark whether gfx fw autoload is supported or not */
        bool                            autoload_supported;
+       /* flag to mark whether df cstate management centralized to PMFW */
+       bool                            pmfw_centralized_cstate_management;
 
        /* xgmi ta firmware and buffer */
        const struct firmware           *ta_fw;
--
2.25.0
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