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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 23/45] drm/amd: Use `amdgpu_ucode_*` helpers for PSP
Date:   Thu, 5 Jan 2023 11:01:09 -0600
Message-ID: <20230105170138.717-24-mario.limonciello@amd.com>
In-Reply-To: <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 is for symmetry on unloading.

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/amdgpu_psp.c | 80 +++++++------------------
 1 file changed, 21 insertions(+), 59 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c
index 73d67a4d0f5b..aae76acc38e5 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c
@@ -510,20 +510,11 @@ static int psp_sw_fini(void *handle)
 
 	psp_memory_training_fini(psp);
 
-	release_firmware(psp->sos_fw);
-	psp->sos_fw = NULL;
-
-	release_firmware(psp->asd_fw);
-	psp->asd_fw = NULL;
-
-	release_firmware(psp->ta_fw);
-	psp->ta_fw = NULL;
-
-	release_firmware(psp->cap_fw);
-	psp->cap_fw = NULL;
-
-	release_firmware(psp->toc_fw);
-	psp->toc_fw = NULL;
+	amdgpu_ucode_release(&psp->sos_fw);
+	amdgpu_ucode_release(&psp->asd_fw);
+	amdgpu_ucode_release(&psp->ta_fw);
+	amdgpu_ucode_release(&psp->cap_fw);
+	amdgpu_ucode_release(&psp->toc_fw);
 
 	if (adev->ip_versions[MP0_HWIP][0] == IP_VERSION(11, 0, 0) ||
 	    adev->ip_versions[MP0_HWIP][0] == IP_VERSION(11, 0, 7))
@@ -2912,11 +2903,7 @@ int psp_init_asd_microcode(struct psp_context *psp, const char *chip_name)
 	int err = 0;
 
 	snprintf(fw_name, sizeof(fw_name), "amdgpu/%s_asd.bin", chip_name);
-	err = request_firmware(&adev->psp.asd_fw, fw_name, adev->dev);
-	if (err)
-		goto out;
-
-	err = amdgpu_ucode_validate(adev->psp.asd_fw);
+	err = amdgpu_ucode_request(adev, &adev->psp.asd_fw, fw_name);
 	if (err)
 		goto out;
 
@@ -2928,9 +2915,7 @@ int psp_init_asd_microcode(struct psp_context *psp, const char *chip_name)
 				le32_to_cpu(asd_hdr->header.ucode_array_offset_bytes);
 	return 0;
 out:
-	dev_err(adev->dev, "fail to initialize asd microcode\n");
-	release_firmware(adev->psp.asd_fw);
-	adev->psp.asd_fw = NULL;
+	amdgpu_ucode_release(&adev->psp.asd_fw);
 	return err;
 }
 
@@ -2942,11 +2927,7 @@ int psp_init_toc_microcode(struct psp_context *psp, const char *chip_name)
 	int err = 0;
 
 	snprintf(fw_name, sizeof(fw_name), "amdgpu/%s_toc.bin", chip_name);
-	err = request_firmware(&adev->psp.toc_fw, fw_name, adev->dev);
-	if (err)
-		goto out;
-
-	err = amdgpu_ucode_validate(adev->psp.toc_fw);
+	err = amdgpu_ucode_request(adev, &adev->psp.toc_fw, fw_name);
 	if (err)
 		goto out;
 
@@ -2958,9 +2939,7 @@ int psp_init_toc_microcode(struct psp_context *psp, const char *chip_name)
 				le32_to_cpu(toc_hdr->header.ucode_array_offset_bytes);
 	return 0;
 out:
-	dev_err(adev->dev, "fail to request/validate toc microcode\n");
-	release_firmware(adev->psp.toc_fw);
-	adev->psp.toc_fw = NULL;
+	amdgpu_ucode_release(&adev->psp.toc_fw);
 	return err;
 }
 
@@ -3105,11 +3084,7 @@ int psp_init_sos_microcode(struct psp_context *psp, const char *chip_name)
 	int fw_index = 0;
 
 	snprintf(fw_name, sizeof(fw_name), "amdgpu/%s_sos.bin", chip_name);
-	err = request_firmware(&adev->psp.sos_fw, fw_name, adev->dev);
-	if (err)
-		goto out;
-
-	err = amdgpu_ucode_validate(adev->psp.sos_fw);
+	err = amdgpu_ucode_request(adev, &adev->psp.sos_fw, fw_name);
 	if (err)
 		goto out;
 
@@ -3181,10 +3156,7 @@ int psp_init_sos_microcode(struct psp_context *psp, const char *chip_name)
 
 	return 0;
 out:
-	dev_err(adev->dev,
-		"failed to init sos firmware\n");
-	release_firmware(adev->psp.sos_fw);
-	adev->psp.sos_fw = NULL;
+	amdgpu_ucode_release(&adev->psp.sos_fw);
 
 	return err;
 }
@@ -3341,10 +3313,7 @@ int psp_init_ta_microcode(struct psp_context *psp, const char *chip_name)
 	int err;
 
 	snprintf(fw_name, sizeof(fw_name), "amdgpu/%s_ta.bin", chip_name);
-	err = request_firmware(&adev->psp.ta_fw, fw_name, adev->dev);
-	if (err)
-		return err;
-	err = amdgpu_ucode_validate(adev->psp.ta_fw);
+	err = amdgpu_ucode_request(adev, &adev->psp.ta_fw, fw_name);
 	if (err)
 		return err;
 
@@ -3361,11 +3330,8 @@ int psp_init_ta_microcode(struct psp_context *psp, const char *chip_name)
 		err = -EINVAL;
 	}
 
-	if (err) {
-		dev_err(adev->dev, "fail to initialize ta microcode\n");
-		release_firmware(adev->psp.ta_fw);
-		adev->psp.ta_fw = NULL;
-	}
+	if (err)
+		amdgpu_ucode_release(&adev->psp.ta_fw);
 
 	return err;
 }
@@ -3384,17 +3350,14 @@ int psp_init_cap_microcode(struct psp_context *psp, const char *chip_name)
 	}
 
 	snprintf(fw_name, sizeof(fw_name), "amdgpu/%s_cap.bin", chip_name);
-	err = request_firmware(&adev->psp.cap_fw, fw_name, adev->dev);
-	if (err) {
-		dev_warn(adev->dev, "cap microcode does not exist, skip\n");
-		err = 0;
-		goto out;
-	}
-
-	err = amdgpu_ucode_validate(adev->psp.cap_fw);
+	err = amdgpu_ucode_request(adev, &adev->psp.cap_fw, fw_name);
 	if (err) {
+		if (err == -ENODEV) {
+			dev_warn(adev->dev, "cap microcode does not exist, skip\n");
+			err = 0;
+			goto out;
+		}
 		dev_err(adev->dev, "fail to initialize cap microcode\n");
-		goto out;
 	}
 
 	info = &adev->firmware.ucode[AMDGPU_UCODE_ID_CAP];
@@ -3411,8 +3374,7 @@ int psp_init_cap_microcode(struct psp_context *psp, const char *chip_name)
 	return 0;
 
 out:
-	release_firmware(adev->psp.cap_fw);
-	adev->psp.cap_fw = NULL;
+	amdgpu_ucode_release(&adev->psp.cap_fw);
 	return err;
 }
 
-- 
2.34.1