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From: Jim Cromie <jim.cromie@gmail.com>
To: jbaron@akamai.com, gregkh@linuxfoundation.org,
	linux-kernel@vger.kernel.org
Cc: ukaszb@chromium.org, linux@rasmusvillemoes.dk, joe@perches.com,
	mcgrof@kernel.org, daniel.vetter@ffwll.ch,
	tvrtko.ursulin@linux.intel.com, jani.nikula@intel.com,
	ville.syrjala@linux.intel.com, seanpaul@chromium.org,
	robdclark@gmail.com, groeck@google.com, yanivt@google.com,
	bleung@google.com, Jim Cromie <jim.cromie@gmail.com>
Subject: [PATCH v8-RESEND 31/33] drm-drivers: DRM_CLASSMAP_USE in 2nd batch of drivers, helpers
Date: Thu, 16 May 2024 11:43:55 -0600	[thread overview]
Message-ID: <20240516174357.26755-32-jim.cromie@gmail.com> (raw)
In-Reply-To: <20240516174357.26755-1-jim.cromie@gmail.com>

Add a DRM_CLASSMAP_USE declaration to 2nd batch of helpers and *_drv.c
files.  For drivers, add the decl just above the module's PARAMs,
since it identifies the "inherited" drm.debug param.

Note: with CONFIG_DRM_USE_DYNAMIC_DEBUG=y, a module not also declaring
DRM_CLASSMAP_USE will have its class'd prdbgs stuck in the initial
(disabled, but for DEBUG) state.

The stuck sites are evident in /proc/dynamic_debug/control as:

   class:_UNKNOWN_ _id:N		# control's last column

rather than a proper "enumeration":

   class:DRM_UT_CORE

TLDR: This set of updates was found by choosing M for all DRM-config
items I found (not allmodconfig), building & modprobing them, and
grepping "class unknown," control.  There may yet be others.

Signed-off-by: Jim Cromie <jim.cromie@gmail.com>
---
 drivers/gpu/drm/drm_gem_shmem_helper.c | 2 ++
 drivers/gpu/drm/gud/gud_drv.c          | 2 ++
 drivers/gpu/drm/mgag200/mgag200_drv.c  | 2 ++
 drivers/gpu/drm/qxl/qxl_drv.c          | 2 ++
 drivers/gpu/drm/radeon/radeon_drv.c    | 2 ++
 drivers/gpu/drm/udl/udl_main.c         | 2 ++
 drivers/gpu/drm/vkms/vkms_drv.c        | 2 ++
 drivers/gpu/drm/vmwgfx/vmwgfx_drv.c    | 2 ++
 8 files changed, 16 insertions(+)

diff --git a/drivers/gpu/drm/drm_gem_shmem_helper.c b/drivers/gpu/drm/drm_gem_shmem_helper.c
index e435f986cd13..066d906e3199 100644
--- a/drivers/gpu/drm/drm_gem_shmem_helper.c
+++ b/drivers/gpu/drm/drm_gem_shmem_helper.c
@@ -23,6 +23,8 @@
 #include <drm/drm_prime.h>
 #include <drm/drm_print.h>
 
+DRM_CLASSMAP_USE(drm_debug_classes);
+
 MODULE_IMPORT_NS(DMA_BUF);
 
 /**
diff --git a/drivers/gpu/drm/gud/gud_drv.c b/drivers/gpu/drm/gud/gud_drv.c
index 9d7bf8ee45f1..5b555045fce4 100644
--- a/drivers/gpu/drm/gud/gud_drv.c
+++ b/drivers/gpu/drm/gud/gud_drv.c
@@ -31,6 +31,8 @@
 
 #include "gud_internal.h"
 
+DRM_CLASSMAP_USE(drm_debug_classes);
+
 /* Only used internally */
 static const struct drm_format_info gud_drm_format_r1 = {
 	.format = GUD_DRM_FORMAT_R1,
diff --git a/drivers/gpu/drm/mgag200/mgag200_drv.c b/drivers/gpu/drm/mgag200/mgag200_drv.c
index 573dbe256aa8..88c5e24cc894 100644
--- a/drivers/gpu/drm/mgag200/mgag200_drv.c
+++ b/drivers/gpu/drm/mgag200/mgag200_drv.c
@@ -25,6 +25,8 @@ static int mgag200_modeset = -1;
 MODULE_PARM_DESC(modeset, "Disable/Enable modesetting");
 module_param_named(modeset, mgag200_modeset, int, 0400);
 
+DRM_CLASSMAP_USE(drm_debug_classes);
+
 int mgag200_init_pci_options(struct pci_dev *pdev, u32 option, u32 option2)
 {
 	struct device *dev = &pdev->dev;
diff --git a/drivers/gpu/drm/qxl/qxl_drv.c b/drivers/gpu/drm/qxl/qxl_drv.c
index beee5563031a..1971bfa8a8a6 100644
--- a/drivers/gpu/drm/qxl/qxl_drv.c
+++ b/drivers/gpu/drm/qxl/qxl_drv.c
@@ -65,6 +65,8 @@ module_param_named(modeset, qxl_modeset, int, 0400);
 MODULE_PARM_DESC(num_heads, "Number of virtual crtcs to expose (default 4)");
 module_param_named(num_heads, qxl_num_crtc, int, 0400);
 
+DRM_CLASSMAP_USE(drm_debug_classes);
+
 static struct drm_driver qxl_driver;
 static struct pci_driver qxl_pci_driver;
 
diff --git a/drivers/gpu/drm/radeon/radeon_drv.c b/drivers/gpu/drm/radeon/radeon_drv.c
index 7bf08164140e..d22308328c76 100644
--- a/drivers/gpu/drm/radeon/radeon_drv.c
+++ b/drivers/gpu/drm/radeon/radeon_drv.c
@@ -247,6 +247,8 @@ int radeon_cik_support = 1;
 MODULE_PARM_DESC(cik_support, "CIK support (1 = enabled (default), 0 = disabled)");
 module_param_named(cik_support, radeon_cik_support, int, 0444);
 
+DRM_CLASSMAP_USE(drm_debug_classes);
+
 static struct pci_device_id pciidlist[] = {
 	radeon_PCI_IDS
 };
diff --git a/drivers/gpu/drm/udl/udl_main.c b/drivers/gpu/drm/udl/udl_main.c
index 3ebe2ce55dfd..ba57c14454e5 100644
--- a/drivers/gpu/drm/udl/udl_main.c
+++ b/drivers/gpu/drm/udl/udl_main.c
@@ -19,6 +19,8 @@
 
 #define NR_USB_REQUEST_CHANNEL 0x12
 
+DRM_CLASSMAP_USE(drm_debug_classes);
+
 #define MAX_TRANSFER (PAGE_SIZE*16 - BULK_SIZE)
 #define WRITES_IN_FLIGHT (20)
 #define MAX_VENDOR_DESCRIPTOR_SIZE 256
diff --git a/drivers/gpu/drm/vkms/vkms_drv.c b/drivers/gpu/drm/vkms/vkms_drv.c
index dd0af086e7fa..086797c4b82b 100644
--- a/drivers/gpu/drm/vkms/vkms_drv.c
+++ b/drivers/gpu/drm/vkms/vkms_drv.c
@@ -39,6 +39,8 @@
 
 static struct vkms_config *default_config;
 
+DRM_CLASSMAP_USE(drm_debug_classes);
+
 static bool enable_cursor = true;
 module_param_named(enable_cursor, enable_cursor, bool, 0444);
 MODULE_PARM_DESC(enable_cursor, "Enable/Disable cursor support");
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c
index 58fb40c93100..c159f4d186a3 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c
@@ -275,6 +275,8 @@ static int vmw_probe(struct pci_dev *, const struct pci_device_id *);
 static int vmwgfx_pm_notifier(struct notifier_block *nb, unsigned long val,
 			      void *ptr);
 
+DRM_CLASSMAP_USE(drm_debug_classes);
+
 MODULE_PARM_DESC(restrict_iommu, "Try to limit IOMMU usage for TTM pages");
 module_param_named(restrict_iommu, vmw_restrict_iommu, int, 0600);
 MODULE_PARM_DESC(force_coherent, "Force coherent TTM pages");
-- 
2.45.0


  parent reply	other threads:[~2024-05-16 17:45 UTC|newest]

Thread overview: 58+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-05-16 17:43 [PATCH v8-RESEND 00/33] Fix CONFIG_DRM_USE_DYNAMIC_DEBUG=y regression Jim Cromie
2024-05-16 17:43 ` [PATCH v8-RESEND 01/33] docs/dyndbg: update examples \012 to \n Jim Cromie
2024-05-16 17:43 ` [PATCH v8-RESEND 02/33] test-dyndbg: fixup CLASSMAP usage error Jim Cromie
2024-05-16 17:43 ` [PATCH v8-RESEND 03/33] dyndbg: reword "class unknown," to "class:_UNKNOWN_" Jim Cromie
2024-05-16 17:43 ` [PATCH v8-RESEND 04/33] dyndbg: make ddebug_class_param union members same size Jim Cromie
2024-05-21 11:42   ` Łukasz Bartosik
2024-05-21 14:41     ` jim.cromie
2024-05-16 17:43 ` [PATCH v8-RESEND 05/33] dyndbg: replace classmap list with a vector Jim Cromie
2024-05-21 11:45   ` Łukasz Bartosik
2024-05-21 14:44     ` jim.cromie
2024-05-16 17:43 ` [PATCH v8-RESEND 06/33] dyndbg: ddebug_apply_class_bitmap - add module arg, select on it Jim Cromie
2024-05-16 17:43 ` [PATCH v8-RESEND 07/33] dyndbg: split param_set_dyndbg_classes to _module & wrapper fns Jim Cromie
2024-05-16 17:43 ` [PATCH v8-RESEND 08/33] dyndbg: drop NUM_TYPE_ARRAY Jim Cromie
2024-05-16 17:43 ` [PATCH v8-RESEND 09/33] dyndbg: reduce verbose/debug clutter Jim Cromie
2024-05-16 17:43 ` [PATCH v8-RESEND 10/33] dyndbg: silence debugs with no-change updates Jim Cromie
2024-05-16 17:43 ` [PATCH v8-RESEND 11/33] dyndbg: tighten ddebug_class_name() 1st arg type Jim Cromie
2024-05-16 17:43 ` [PATCH v8-RESEND 12/33] dyndbg: tighten fn-sig of ddebug_apply_class_bitmap Jim Cromie
2024-05-16 17:43 ` [PATCH v8-RESEND 13/33] dyndbg: reduce verbose=3 messages in ddebug_add_module Jim Cromie
2024-05-16 17:43 ` [PATCH v8-RESEND 14/33] dyndbg-API: remove DD_CLASS_TYPE_(DISJOINT|LEVEL)_NAMES and code Jim Cromie
2024-05-16 17:43 ` [PATCH v8-RESEND 15/33] dyndbg-API: fix DECLARE_DYNDBG_CLASSMAP Jim Cromie
2024-05-21 11:46   ` Łukasz Bartosik
2024-05-21 16:31     ` jim.cromie
2024-05-22 18:52       ` jim.cromie
2024-05-24 10:38         ` Łukasz Bartosik
2024-05-16 17:43 ` [PATCH v8-RESEND 16/33] selftests-dyndbg: add tools/testing/selftests/dynamic_debug/* Jim Cromie
2024-05-16 17:43 ` [PATCH v8-RESEND 17/33] selftests-dyndbg: exit 127 if no facility Jim Cromie
2024-05-16 17:43 ` [PATCH v8-RESEND 18/33] dyndbg-API: promote DYNDBG_CLASSMAP_PARAM to API Jim Cromie
2024-05-16 17:43 ` [PATCH v8-RESEND 19/33] dyndbg-doc: add classmap info to howto Jim Cromie
2024-05-21 11:57   ` Łukasz Bartosik
2024-05-21 14:57     ` jim.cromie
2024-05-22 14:01       ` Łukasz Bartosik
2024-05-16 17:43 ` [PATCH v8-RESEND 20/33] dyndbg: treat comma as a token separator Jim Cromie
2024-05-16 17:43 ` [PATCH v8-RESEND 21/33] selftests-dyndbg: add comma_terminator_tests Jim Cromie
2024-05-16 17:43 ` [PATCH v8-RESEND 22/33] dyndbg: split multi-query strings with % Jim Cromie
2024-05-21 11:58   ` Łukasz Bartosik
2024-05-21 16:08     ` jim.cromie
2024-05-22 16:57       ` Łukasz Bartosik
2024-05-22 18:33         ` jim.cromie
2024-05-16 17:43 ` [PATCH v8-RESEND 23/33] selftests-dyndbg: test_percent_splitting multi-cmds on module classes Jim Cromie
2024-05-16 17:43 ` [PATCH v8-RESEND 24/33] docs/dyndbg: explain new delimiters: comma, percent Jim Cromie
2024-05-16 17:43 ` [PATCH v8-RESEND 25/33] selftests-dyndbg: add test_mod_submod Jim Cromie
2024-05-16 17:43 ` [PATCH v8-RESEND 26/33] selftests-dyndbg: test dyndbg-to-tracefs Jim Cromie
2024-05-16 17:43 ` [PATCH v8-RESEND 27/33] dyndbg-doc: explain flags parse 1st Jim Cromie
2024-05-21 11:58   ` Łukasz Bartosik
2024-05-16 17:43 ` [PATCH v8-RESEND 28/33] drm+drivers: adapt to use DYNDBG_CLASSMAP_{DEFINE,USE} Jim Cromie
2024-05-16 17:43 ` [PATCH v8-RESEND 29/33] drm-dyndbg: adapt to use DYNDBG_CLASSMAP_PARAM Jim Cromie
2024-05-16 17:43 ` [PATCH v8-RESEND 30/33] drm: use correct ccflags-y spelling Jim Cromie
2024-05-16 17:43 ` Jim Cromie [this message]
2024-05-16 17:43 ` [PATCH v8-RESEND 32/33] drm: restore CONFIG_DRM_USE_DYNAMIC_DEBUG un-BROKEN Jim Cromie
2024-05-16 17:43 ` [PATCH v8-RESEND 33/33] drm-print: workaround compiler meh Jim Cromie
2024-05-21 11:40 ` [PATCH v8-RESEND 00/33] Fix CONFIG_DRM_USE_DYNAMIC_DEBUG=y regression Łukasz Bartosik
2024-05-21 19:10   ` jim.cromie
2024-05-22 17:36     ` Łukasz Bartosik
2024-05-26 22:36 ` Łukasz Bartosik
2024-05-27 15:45   ` jim.cromie
2024-05-29 22:01     ` Łukasz Bartosik
2024-06-05 17:05       ` jim.cromie
     [not found]       ` <CAJfuBxyZdxziS-d=3Ctjr4xyKoUX_GXEskKRMWco32c9Y1_WFA@mail.gmail.com>
2024-06-08 23:59         ` Łukasz Bartosik

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