From d2382f29ce5467c4e5704eac1f55ad9d3f9ca970 Mon Sep 17 00:00:00 2001 From: Prike Liang Date: Mon, 2 Dec 2024 14:13:02 +0800 Subject: drm/amdgpu: Avoid to release the FW twice in the validated error There will to release the FW twice when the FW validated error. Even if the release_firmware() will further validate the FW whether is empty, but that will be redundant and inefficient. Signed-off-by: Prike Liang Reviewed-by: Lijo Lazar Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/amdgpu/amdgpu_ucode.c | 10 ++++++---- 1 file changed, 6 insertions(+), 4 deletions(-) (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_ucode.c') diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ucode.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ucode.c index 4c7b53648a50..d3cd76c6dab3 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ucode.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ucode.c @@ -1461,11 +1461,13 @@ int amdgpu_ucode_request(struct amdgpu_device *adev, const struct firmware **fw, return -ENODEV; r = amdgpu_ucode_validate(*fw); - if (r) { + if (r) + /* + * The amdgpu_ucode_request() should be paired with amdgpu_ucode_release() + * regardless of success/failure, and the amdgpu_ucode_release() takes care of + * firmware release and need to avoid redundant release FW operation here. + */ dev_dbg(adev->dev, "\"%s\" failed to validate\n", fname); - release_firmware(*fw); - *fw = NULL; - } return r; } -- cgit From ea5d49349894a7a74ce8dba242e3a487d24b6c0e Mon Sep 17 00:00:00 2001 From: Mario Limonciello Date: Tue, 3 Dec 2024 11:28:54 -0600 Subject: drm/amd: Add the capability to mark certain firmware as "required" Some of the firmware that is loaded by amdgpu is not actually required. For example the ISP firmware on some SoCs is optional, and if it's not present the ISP IP block just won't be initialized. The firmware loader core however will show a warning when this happens like this: ``` Direct firmware load for amdgpu/isp_4_1_0.bin failed with error -2 ``` To avoid confusion for non-required firmware, adjust the amd-ucode helper to take an extra argument indicating if the firmware is required or optional. On optional firmware use firmware_request_nowarn() instead of request_firmware() to avoid the warnings. Reviewed-by: Alex Deucher Link: https://lore.kernel.org/amd-gfx/df71d375-7abd-4b32-97ce-15e57846eed8@amd.com/T/#t Signed-off-by: Mario Limonciello Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/amdgpu/amdgpu_ucode.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_ucode.c') diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ucode.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ucode.c index d3cd76c6dab3..ffbb3377e0f6 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ucode.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ucode.c @@ -1434,6 +1434,7 @@ void amdgpu_ucode_ip_version_decode(struct amdgpu_device *adev, int block_type, * * @adev: amdgpu device * @fw: pointer to load firmware to + * @required: whether the firmware is required * @fmt: firmware name format string * @...: variable arguments * @@ -1442,7 +1443,7 @@ void amdgpu_ucode_ip_version_decode(struct amdgpu_device *adev, int block_type, * the error code to -ENODEV, so that early_init functions will fail to load. */ int amdgpu_ucode_request(struct amdgpu_device *adev, const struct firmware **fw, - const char *fmt, ...) + enum amdgpu_ucode_required required, const char *fmt, ...) { char fname[AMDGPU_UCODE_NAME_MAX]; va_list ap; @@ -1456,7 +1457,10 @@ int amdgpu_ucode_request(struct amdgpu_device *adev, const struct firmware **fw, return -EOVERFLOW; } - r = request_firmware(fw, fname, adev->dev); + if (required == AMDGPU_UCODE_REQUIRED) + r = request_firmware(fw, fname, adev->dev); + else + r = firmware_request_nowarn(fw, fname, adev->dev); if (r) return -ENODEV; -- cgit From b6e6871a56d7471f087c3f36e63f213668feba49 Mon Sep 17 00:00:00 2001 From: Mario Limonciello Date: Thu, 5 Dec 2024 10:51:27 -0600 Subject: drm/amd: Show an info message about optional firmware missing With the warning from the core about missing firmware gone, users still may be notified of missing optional firmware by a more friendly message to clarify it's optional. Suggested-by: Lijo Lazar Signed-off-by: Mario Limonciello Acked-by: Alex Deucher Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/amdgpu/amdgpu_ucode.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_ucode.c') diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ucode.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ucode.c index ffbb3377e0f6..cf700824b960 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ucode.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ucode.c @@ -1459,8 +1459,11 @@ int amdgpu_ucode_request(struct amdgpu_device *adev, const struct firmware **fw, if (required == AMDGPU_UCODE_REQUIRED) r = request_firmware(fw, fname, adev->dev); - else + else { r = firmware_request_nowarn(fw, fname, adev->dev); + if (r) + drm_info(&adev->ddev, "Optional firmware \"%s\" was not found\n", fname); + } if (r) return -ENODEV; -- cgit