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From:   Mario Limonciello <mario.limonciello@amd.com>
To:     Alex Deucher <alexander.deucher@amd.com>,
        <linux-kernel@vger.kernel.org>
CC:     Javier Martinez Canillas <javierm@redhat.com>,
        Carlos Soriano Sanchez <csoriano@redhat.com>,
        <amd-gfx@lists.freedesktop.org>, <dri-devel@lists.freedesktop.org>,
        David Airlie <airlied@gmail.com>,
        "Daniel Vetter" <daniel@ffwll.ch>, <christian.koenig@amd.com>,
        Lazar Lijo <Lijo.Lazar@amd.com>,
        Mario Limonciello <mario.limonciello@amd.com>,
        "Lijo Lazar" <lijo.lazar@amd.com>,
        "Pan, Xinhui" <Xinhui.Pan@amd.com>, David Airlie <airlied@linux.ie>
Subject: [PATCH v7 14/45] drm/amd: Use `amdgpu_ucode_*` helpers for GFX9
Date:   Thu, 5 Jan 2023 11:01:00 -0600
Message-ID: <20230105170138.717-15-mario.limonciello@amd.com>
In-Reply-To: <20230105170138.717-1-mario.limonciello@amd.com>
References: <20230105170138.717-1-mario.limonciello@amd.com>
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The `amdgpu_ucode_request` helper will ensure that the return code for
missing firmware is -ENODEV so that early_init can fail.

The `amdgpu_ucode_release` helper will provide symmetry on unload.

Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Lijo Lazar <lijo.lazar@amd.com>
Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
---
v5->v6:
 * Adjust for amdgpu_ucode_release argument change
---
 drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c | 82 +++++++--------------------
 1 file changed, 21 insertions(+), 61 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
index f202b45c413c..ef2dbebbc90c 100644
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
@@ -1078,18 +1078,12 @@ static int gfx_v9_0_ring_test_ib(struct amdgpu_ring *ring, long timeout)
 
 static void gfx_v9_0_free_microcode(struct amdgpu_device *adev)
 {
-	release_firmware(adev->gfx.pfp_fw);
-	adev->gfx.pfp_fw = NULL;
-	release_firmware(adev->gfx.me_fw);
-	adev->gfx.me_fw = NULL;
-	release_firmware(adev->gfx.ce_fw);
-	adev->gfx.ce_fw = NULL;
-	release_firmware(adev->gfx.rlc_fw);
-	adev->gfx.rlc_fw = NULL;
-	release_firmware(adev->gfx.mec_fw);
-	adev->gfx.mec_fw = NULL;
-	release_firmware(adev->gfx.mec2_fw);
-	adev->gfx.mec2_fw = NULL;
+	amdgpu_ucode_release(&adev->gfx.pfp_fw);
+	amdgpu_ucode_release(&adev->gfx.me_fw);
+	amdgpu_ucode_release(&adev->gfx.ce_fw);
+	amdgpu_ucode_release(&adev->gfx.rlc_fw);
+	amdgpu_ucode_release(&adev->gfx.mec_fw);
+	amdgpu_ucode_release(&adev->gfx.mec2_fw);
 
 	kfree(adev->gfx.rlc.register_list_format);
 }
@@ -1257,43 +1251,28 @@ static int gfx_v9_0_init_cp_gfx_microcode(struct amdgpu_device *adev,
 	int err;
 
 	snprintf(fw_name, sizeof(fw_name), "amdgpu/%s_pfp.bin", chip_name);
-	err = request_firmware(&adev->gfx.pfp_fw, fw_name, adev->dev);
-	if (err)
-		goto out;
-	err = amdgpu_ucode_validate(adev->gfx.pfp_fw);
+	err = amdgpu_ucode_request(adev, &adev->gfx.pfp_fw, fw_name);
 	if (err)
 		goto out;
 	amdgpu_gfx_cp_init_microcode(adev, AMDGPU_UCODE_ID_CP_PFP);
 
 	snprintf(fw_name, sizeof(fw_name), "amdgpu/%s_me.bin", chip_name);
-	err = request_firmware(&adev->gfx.me_fw, fw_name, adev->dev);
-	if (err)
-		goto out;
-	err = amdgpu_ucode_validate(adev->gfx.me_fw);
+	err = amdgpu_ucode_request(adev, &adev->gfx.me_fw, fw_name);
 	if (err)
 		goto out;
 	amdgpu_gfx_cp_init_microcode(adev, AMDGPU_UCODE_ID_CP_ME);
 
 	snprintf(fw_name, sizeof(fw_name), "amdgpu/%s_ce.bin", chip_name);
-	err = request_firmware(&adev->gfx.ce_fw, fw_name, adev->dev);
-	if (err)
-		goto out;
-	err = amdgpu_ucode_validate(adev->gfx.ce_fw);
+	err = amdgpu_ucode_request(adev, &adev->gfx.ce_fw, fw_name);
 	if (err)
 		goto out;
 	amdgpu_gfx_cp_init_microcode(adev, AMDGPU_UCODE_ID_CP_CE);
 
 out:
 	if (err) {
-		dev_err(adev->dev,
-			"gfx9: Failed to init firmware \"%s\"\n",
-			fw_name);
-		release_firmware(adev->gfx.pfp_fw);
-		adev->gfx.pfp_fw = NULL;
-		release_firmware(adev->gfx.me_fw);
-		adev->gfx.me_fw = NULL;
-		release_firmware(adev->gfx.ce_fw);
-		adev->gfx.ce_fw = NULL;
+		amdgpu_ucode_release(&adev->gfx.pfp_fw);
+		amdgpu_ucode_release(&adev->gfx.me_fw);
+		amdgpu_ucode_release(&adev->gfx.ce_fw);
 	}
 	return err;
 }
@@ -1328,10 +1307,7 @@ static int gfx_v9_0_init_rlc_microcode(struct amdgpu_device *adev,
 		snprintf(fw_name, sizeof(fw_name), "amdgpu/%s_kicker_rlc.bin", chip_name);
 	else
 		snprintf(fw_name, sizeof(fw_name), "amdgpu/%s_rlc.bin", chip_name);
-	err = request_firmware(&adev->gfx.rlc_fw, fw_name, adev->dev);
-	if (err)
-		goto out;
-	err = amdgpu_ucode_validate(adev->gfx.rlc_fw);
+	err = amdgpu_ucode_request(adev, &adev->gfx.rlc_fw, fw_name);
 	if (err)
 		goto out;
 	rlc_hdr = (const struct rlc_firmware_header_v2_0 *)adev->gfx.rlc_fw->data;
@@ -1340,13 +1316,9 @@ static int gfx_v9_0_init_rlc_microcode(struct amdgpu_device *adev,
 	version_minor = le16_to_cpu(rlc_hdr->header.header_version_minor);
 	err = amdgpu_gfx_rlc_init_microcode(adev, version_major, version_minor);
 out:
-	if (err) {
-		dev_err(adev->dev,
-			"gfx9: Failed to init firmware \"%s\"\n",
-			fw_name);
-		release_firmware(adev->gfx.rlc_fw);
-		adev->gfx.rlc_fw = NULL;
-	}
+	if (err)
+		amdgpu_ucode_release(&adev->gfx.rlc_fw);
+
 	return err;
 }
 
@@ -1371,12 +1343,9 @@ static int gfx_v9_0_init_cp_compute_microcode(struct amdgpu_device *adev,
 	else
 		snprintf(fw_name, sizeof(fw_name), "amdgpu/%s_mec.bin", chip_name);
 
-	err = request_firmware(&adev->gfx.mec_fw, fw_name, adev->dev);
+	err = amdgpu_ucode_request(adev, &adev->gfx.mec_fw, fw_name);
 	if (err)
-		goto out;
-	err = amdgpu_ucode_validate(adev->gfx.mec_fw);
-	if (err)
-		goto out;
+		return err;
 	amdgpu_gfx_cp_init_microcode(adev, AMDGPU_UCODE_ID_CP_MEC1);
 	amdgpu_gfx_cp_init_microcode(adev, AMDGPU_UCODE_ID_CP_MEC1_JT);
 
@@ -1386,11 +1355,8 @@ static int gfx_v9_0_init_cp_compute_microcode(struct amdgpu_device *adev,
 		else
 			snprintf(fw_name, sizeof(fw_name), "amdgpu/%s_mec2.bin", chip_name);
 
-		err = request_firmware(&adev->gfx.mec2_fw, fw_name, adev->dev);
+		err = amdgpu_ucode_request(adev, &adev->gfx.mec2_fw, fw_name);
 		if (!err) {
-			err = amdgpu_ucode_validate(adev->gfx.mec2_fw);
-			if (err)
-				goto out;
 			amdgpu_gfx_cp_init_microcode(adev, AMDGPU_UCODE_ID_CP_MEC2);
 			amdgpu_gfx_cp_init_microcode(adev, AMDGPU_UCODE_ID_CP_MEC2_JT);
 		} else {
@@ -1402,17 +1368,11 @@ static int gfx_v9_0_init_cp_compute_microcode(struct amdgpu_device *adev,
 		adev->gfx.mec2_feature_version = adev->gfx.mec_feature_version;
 	}
 
-out:
 	gfx_v9_0_check_if_need_gfxoff(adev);
 	gfx_v9_0_check_fw_write_wait(adev);
 	if (err) {
-		dev_err(adev->dev,
-			"gfx9: Failed to init firmware \"%s\"\n",
-			fw_name);
-		release_firmware(adev->gfx.mec_fw);
-		adev->gfx.mec_fw = NULL;
-		release_firmware(adev->gfx.mec2_fw);
-		adev->gfx.mec2_fw = NULL;
+		amdgpu_ucode_release(&adev->gfx.mec_fw);
+		amdgpu_ucode_release(&adev->gfx.mec2_fw);
 	}
 	return err;
 }
-- 
2.34.1