[AMD Official Use Only - General]

Reviewed-by: Jack Gui <jack....@amd.com>

-----Original Message-----
From: Zhang, Hawking <hawking.zh...@amd.com> 
Sent: Tuesday, August 30, 2022 4:10 PM
To: amd-gfx@lists.freedesktop.org; Gui, Jack <jack....@amd.com>
Cc: Zhang, Hawking <hawking.zh...@amd.com>
Subject: [PATCH] drm/amdgpu: only init tap_delay ucode when it's included in 
ucode binary

Not all the gfx10 variants need to integrate global tap_delay and per se 
tap_delay firmwares

Only init tap_delay ucode when it does include in rlc ucode binary so driver 
doesn't send a null buffer to psp for firmware loading

Signed-off-by: Hawking Zhang <hawking.zh...@amd.com>
---
 drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c | 60 +++++++++++++++-----------
 1 file changed, 35 insertions(+), 25 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c 
b/drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c
index 1a915edccb92..e4dde41f2f68 100644
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c
@@ -4274,35 +4274,45 @@ static int gfx_v10_0_init_microcode(struct 
amdgpu_device *adev)
 
                }
 
-               info = &adev->firmware.ucode[AMDGPU_UCODE_ID_GLOBAL_TAP_DELAYS];
-               info->ucode_id = AMDGPU_UCODE_ID_GLOBAL_TAP_DELAYS;
-               info->fw = adev->gfx.rlc_fw;
-               adev->firmware.fw_size +=
-                       ALIGN(adev->gfx.rlc.global_tap_delays_ucode_size_bytes, 
PAGE_SIZE);
+               if (adev->gfx.rlc.global_tap_delays_ucode_size_bytes) {
+                       info = 
&adev->firmware.ucode[AMDGPU_UCODE_ID_GLOBAL_TAP_DELAYS];
+                       info->ucode_id = AMDGPU_UCODE_ID_GLOBAL_TAP_DELAYS;
+                       info->fw = adev->gfx.rlc_fw;
+                       adev->firmware.fw_size +=
+                               
ALIGN(adev->gfx.rlc.global_tap_delays_ucode_size_bytes, PAGE_SIZE);
+               }
 
-               info = &adev->firmware.ucode[AMDGPU_UCODE_ID_SE0_TAP_DELAYS];
-               info->ucode_id = AMDGPU_UCODE_ID_SE0_TAP_DELAYS;
-               info->fw = adev->gfx.rlc_fw;
-               adev->firmware.fw_size +=
-                       ALIGN(adev->gfx.rlc.se0_tap_delays_ucode_size_bytes, 
PAGE_SIZE);
+               if (adev->gfx.rlc.se0_tap_delays_ucode_size_bytes) {
+                       info = 
&adev->firmware.ucode[AMDGPU_UCODE_ID_SE0_TAP_DELAYS];
+                       info->ucode_id = AMDGPU_UCODE_ID_SE0_TAP_DELAYS;
+                       info->fw = adev->gfx.rlc_fw;
+                       adev->firmware.fw_size +=
+                               
ALIGN(adev->gfx.rlc.se0_tap_delays_ucode_size_bytes, PAGE_SIZE);
+               }
 
-               info = &adev->firmware.ucode[AMDGPU_UCODE_ID_SE1_TAP_DELAYS];
-               info->ucode_id = AMDGPU_UCODE_ID_SE1_TAP_DELAYS;
-               info->fw = adev->gfx.rlc_fw;
-               adev->firmware.fw_size +=
-                       ALIGN(adev->gfx.rlc.se1_tap_delays_ucode_size_bytes, 
PAGE_SIZE);
+               if (adev->gfx.rlc.se1_tap_delays_ucode_size_bytes) {
+                       info = 
&adev->firmware.ucode[AMDGPU_UCODE_ID_SE1_TAP_DELAYS];
+                       info->ucode_id = AMDGPU_UCODE_ID_SE1_TAP_DELAYS;
+                       info->fw = adev->gfx.rlc_fw;
+                       adev->firmware.fw_size +=
+                               
ALIGN(adev->gfx.rlc.se1_tap_delays_ucode_size_bytes, PAGE_SIZE);
+               }
 
-               info = &adev->firmware.ucode[AMDGPU_UCODE_ID_SE2_TAP_DELAYS];
-               info->ucode_id = AMDGPU_UCODE_ID_SE2_TAP_DELAYS;
-               info->fw = adev->gfx.rlc_fw;
-               adev->firmware.fw_size +=
-                       ALIGN(adev->gfx.rlc.se2_tap_delays_ucode_size_bytes, 
PAGE_SIZE);
+               if (adev->gfx.rlc.se2_tap_delays_ucode_size_bytes) {
+                       info = 
&adev->firmware.ucode[AMDGPU_UCODE_ID_SE2_TAP_DELAYS];
+                       info->ucode_id = AMDGPU_UCODE_ID_SE2_TAP_DELAYS;
+                       info->fw = adev->gfx.rlc_fw;
+                       adev->firmware.fw_size +=
+                               
ALIGN(adev->gfx.rlc.se2_tap_delays_ucode_size_bytes, PAGE_SIZE);
+               }
 
-               info = &adev->firmware.ucode[AMDGPU_UCODE_ID_SE3_TAP_DELAYS];
-               info->ucode_id = AMDGPU_UCODE_ID_SE3_TAP_DELAYS;
-               info->fw = adev->gfx.rlc_fw;
-               adev->firmware.fw_size +=
-                       ALIGN(adev->gfx.rlc.se3_tap_delays_ucode_size_bytes, 
PAGE_SIZE);
+               if (adev->gfx.rlc.se3_tap_delays_ucode_size_bytes) {
+                       info = 
&adev->firmware.ucode[AMDGPU_UCODE_ID_SE3_TAP_DELAYS];
+                       info->ucode_id = AMDGPU_UCODE_ID_SE3_TAP_DELAYS;
+                       info->fw = adev->gfx.rlc_fw;
+                       adev->firmware.fw_size +=
+                               
ALIGN(adev->gfx.rlc.se3_tap_delays_ucode_size_bytes, PAGE_SIZE);
+               }
 
                info = &adev->firmware.ucode[AMDGPU_UCODE_ID_CP_MEC1];
                info->ucode_id = AMDGPU_UCODE_ID_CP_MEC1;
--
2.34.1

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