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X-BeenThere: amd-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Discussion list for AMD gfx List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: amd-gfx-bounces@lists.freedesktop.org Sender: "amd-gfx" On 1/9/2025 21:19, Gerry Liu wrote: > > >> 2025年1月9日 01:19，Mario Limonciello > > 写道： >> >> On 1/8/2025 07:59, Jiang Liu wrote: >>> Add a flag to track ras debugfs creation status, to avoid possible >>> incorrect reference count management for ras block object  in function >>> amdgpu_ras_aca_is_supported(). >> >> Rather than taking a marker position, why not just check for >> obj->fs_data.debugfs_name to be non NULL in amdgpu_ras_fs_fini()? > I plan to use marker as a common status track mechanism, so used marker > here:) > >> >>> Signed-off-by: Jiang Liu >> > >>> --- >>>  drivers/gpu/drm/amd/amdgpu/amdgpu.h     | 2 +- >>>  drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c | 9 +++++++-- >>>  2 files changed, 8 insertions(+), 3 deletions(-) >>> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu.h b/drivers/gpu/drm/ >>> amd/amdgpu/amdgpu.h >>> index 32941f29507c..2ef7d3102be3 100644 >>> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu.h >>> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu.h >>> @@ -378,7 +378,7 @@ enum amdgpu_marker { >>> AMDGPU_MARKER_IRQ6= 6, >>> AMDGPU_MARKER_IRQ7= 7, >>> AMDGPU_MARKER_IRQ_MAX= 47, >>> -AMDGPU_MARKER_DEBUGFS= 63, >>> +AMDGPU_MARKER_RAS_DEBUGFS= 63, >> >> Any particular reason you jumped to 63 in this patch and then counted >> down in the next one?  IE why not throw it at 48 (and then 49 for next >> one)? > I’m not sure how much markers are needed for IRQ, so I split the space > into two parts: one for irq and one for others. I think it's up to Alex and Christian here but as it's all internal to amdgpu we can always reassign the enum in the future. So I think we should just take 48 and 49. If another IRQ is needed we can slot it in at 48 and bump these by 1. Alex, Christian, thoughts? > >> >>>  }; >>>    #define AMDGPU_MARKER_INDEX_IRQ(idx)(AMDGPU_MARKER_INDEX_IRQ0 + (idx)) >>> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c b/drivers/gpu/ >>> drm/amd/amdgpu/amdgpu_ras.c >>> index 6d52e22691f7..efd72b07a185 100644 >>> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c >>> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c >>> @@ -1996,7 +1996,8 @@ static void amdgpu_ras_debugfs_create(struct >>> amdgpu_device *adev, >>>  { >>> struct ras_manager *obj = amdgpu_ras_find_obj(adev, &head->head); >>>  -if (!obj || !dir) >>> +if (!obj || !dir || >>> +   amdgpu_ras_test_marker(adev, &head->head, AMDGPU_MARKER_RAS_DEBUGFS)) >>> return; >>> get_obj(obj); >>> @@ -2007,6 +2008,8 @@ static void amdgpu_ras_debugfs_create(struct >>> amdgpu_device *adev, >>> debugfs_create_file(obj->fs_data.debugfs_name, S_IWUGO | S_IRUGO, dir, >>>    obj, &amdgpu_ras_debugfs_ops); >>> + >>> +amdgpu_ras_set_marker(adev, &head->head, AMDGPU_MARKER_RAS_DEBUGFS); >>>  } >>>    static bool amdgpu_ras_aca_is_supported(struct amdgpu_device *adev) >>> @@ -2134,7 +2137,9 @@ static int amdgpu_ras_fs_fini(struct >>> amdgpu_device *adev) >>> if (IS_ENABLED(CONFIG_DEBUG_FS)) { >>> list_for_each_entry_safe(con_obj, tmp, &con->head, node) { >>> ip_obj = amdgpu_ras_find_obj(adev, &con_obj->head); >>> -if (ip_obj) >>> +if (ip_obj && >>> +   amdgpu_ras_test_and_clear_marker(adev, &ip_obj->head, >>> +    AMDGPU_MARKER_RAS_DEBUGFS)) >>> put_obj(ip_obj); >>> } >>> } >