LinuxLists.cc - [PATCH 2/6] drm: use new debugfs device-centered functions on DRM core files

2022-11-22 19:32:51

Subject: [PATCH 2/6] drm: use new debugfs device-centered functions on DRM core files

Replace the use of drm_debugfs_create_files() with the new
drm_debugfs_add_files() function in all DRM core files, centering the
debugfs files management on the drm_device instead of drm_minor.

Signed-off-by: Maíra Canal <[email protected]>
---
drivers/gpu/drm/drm_atomic.c | 11 +++++------
drivers/gpu/drm/drm_client.c | 11 +++++------
drivers/gpu/drm/drm_debugfs.c | 18 ++++++++----------
drivers/gpu/drm/drm_framebuffer.c | 11 +++++------
drivers/gpu/drm/drm_gem_vram_helper.c | 11 +++++------
5 files changed, 28 insertions(+), 34 deletions(-)

diff --git a/drivers/gpu/drm/drm_atomic.c b/drivers/gpu/drm/drm_atomic.c
index f197f59f6d99..c7f23cf2552c 100644
--- a/drivers/gpu/drm/drm_atomic.c
+++ b/drivers/gpu/drm/drm_atomic.c
@@ -1756,8 +1756,8 @@ EXPORT_SYMBOL(drm_state_dump);
#ifdef CONFIG_DEBUG_FS
static int drm_state_info(struct seq_file *m, void *data)
{
- struct drm_info_node *node = (struct drm_info_node *) m->private;
- struct drm_device *dev = node->minor->dev;
+ struct drm_debugfs_entry *entry = m->private;
+ struct drm_device *dev = entry->dev;
struct drm_printer p = drm_seq_file_printer(m);

__drm_state_dump(dev, &p, true);
@@ -1766,14 +1766,13 @@ static int drm_state_info(struct seq_file *m, void *data)
}

/* any use in debugfs files to dump individual planes/crtc/etc? */
-static const struct drm_info_list drm_atomic_debugfs_list[] = {
+static const struct drm_debugfs_info drm_atomic_debugfs_list[] = {
{"state", drm_state_info, 0},
};

void drm_atomic_debugfs_init(struct drm_minor *minor)
{
- drm_debugfs_create_files(drm_atomic_debugfs_list,
- ARRAY_SIZE(drm_atomic_debugfs_list),
- minor->debugfs_root, minor);
+ drm_debugfs_add_files(minor->dev, drm_atomic_debugfs_list,
+ ARRAY_SIZE(drm_atomic_debugfs_list));
}
#endif
diff --git a/drivers/gpu/drm/drm_client.c b/drivers/gpu/drm/drm_client.c
index fd67efe37c63..262ec64d4397 100644
--- a/drivers/gpu/drm/drm_client.c
+++ b/drivers/gpu/drm/drm_client.c
@@ -480,8 +480,8 @@ EXPORT_SYMBOL(drm_client_framebuffer_flush);
#ifdef CONFIG_DEBUG_FS
static int drm_client_debugfs_internal_clients(struct seq_file *m, void *data)
{
- struct drm_info_node *node = m->private;
- struct drm_device *dev = node->minor->dev;
+ struct drm_debugfs_entry *entry = m->private;
+ struct drm_device *dev = entry->dev;
struct drm_printer p = drm_seq_file_printer(m);
struct drm_client_dev *client;

@@ -493,14 +493,13 @@ static int drm_client_debugfs_internal_clients(struct seq_file *m, void *data)
return 0;
}

-static const struct drm_info_list drm_client_debugfs_list[] = {
+static const struct drm_debugfs_info drm_client_debugfs_list[] = {
{ "internal_clients", drm_client_debugfs_internal_clients, 0 },
};

void drm_client_debugfs_init(struct drm_minor *minor)
{
- drm_debugfs_create_files(drm_client_debugfs_list,
- ARRAY_SIZE(drm_client_debugfs_list),
- minor->debugfs_root, minor);
+ drm_debugfs_add_files(minor->dev, drm_client_debugfs_list,
+ ARRAY_SIZE(drm_client_debugfs_list));
}
#endif
diff --git a/drivers/gpu/drm/drm_debugfs.c b/drivers/gpu/drm/drm_debugfs.c
index ca27c2b05051..83f7530e7b46 100644
--- a/drivers/gpu/drm/drm_debugfs.c
+++ b/drivers/gpu/drm/drm_debugfs.c
@@ -51,9 +51,8 @@

static int drm_name_info(struct seq_file *m, void *data)
{
- struct drm_info_node *node = (struct drm_info_node *) m->private;
- struct drm_minor *minor = node->minor;
- struct drm_device *dev = minor->dev;
+ struct drm_debugfs_entry *entry = m->private;
+ struct drm_device *dev = entry->dev;
struct drm_master *master;

mutex_lock(&dev->master_mutex);
@@ -73,8 +72,8 @@ static int drm_name_info(struct seq_file *m, void *data)

static int drm_clients_info(struct seq_file *m, void *data)
{
- struct drm_info_node *node = (struct drm_info_node *) m->private;
- struct drm_device *dev = node->minor->dev;
+ struct drm_debugfs_entry *entry = m->private;
+ struct drm_device *dev = entry->dev;
struct drm_file *priv;
kuid_t uid;

@@ -125,8 +124,8 @@ static int drm_gem_one_name_info(int id, void *ptr, void *data)

static int drm_gem_name_info(struct seq_file *m, void *data)
{
- struct drm_info_node *node = (struct drm_info_node *) m->private;
- struct drm_device *dev = node->minor->dev;
+ struct drm_debugfs_entry *entry = m->private;
+ struct drm_device *dev = entry->dev;

seq_printf(m, " name size handles refcount\n");

@@ -137,7 +136,7 @@ static int drm_gem_name_info(struct seq_file *m, void *data)
return 0;
}

-static const struct drm_info_list drm_debugfs_list[] = {
+static const struct drm_debugfs_info drm_debugfs_list[] = {
{"name", drm_name_info, 0},
{"clients", drm_clients_info, 0},
{"gem_names", drm_gem_name_info, DRIVER_GEM},
@@ -231,8 +230,7 @@ int drm_debugfs_init(struct drm_minor *minor, int minor_id,
sprintf(name, "%d", minor_id);
minor->debugfs_root = debugfs_create_dir(name, root);

- drm_debugfs_create_files(drm_debugfs_list, DRM_DEBUGFS_ENTRIES,
- minor->debugfs_root, minor);
+ drm_debugfs_add_files(minor->dev, drm_debugfs_list, DRM_DEBUGFS_ENTRIES);

if (drm_drv_uses_atomic_modeset(dev)) {
drm_atomic_debugfs_init(minor);
diff --git a/drivers/gpu/drm/drm_framebuffer.c b/drivers/gpu/drm/drm_framebuffer.c
index 2dd97473ca10..aff3746dedfb 100644
--- a/drivers/gpu/drm/drm_framebuffer.c
+++ b/drivers/gpu/drm/drm_framebuffer.c
@@ -1203,8 +1203,8 @@ void drm_framebuffer_print_info(struct drm_printer *p, unsigned int indent,
#ifdef CONFIG_DEBUG_FS
static int drm_framebuffer_info(struct seq_file *m, void *data)
{
- struct drm_info_node *node = m->private;
- struct drm_device *dev = node->minor->dev;
+ struct drm_debugfs_entry *entry = m->private;
+ struct drm_device *dev = entry->dev;
struct drm_printer p = drm_seq_file_printer(m);
struct drm_framebuffer *fb;

@@ -1218,14 +1218,13 @@ static int drm_framebuffer_info(struct seq_file *m, void *data)
return 0;
}

-static const struct drm_info_list drm_framebuffer_debugfs_list[] = {
+static const struct drm_debugfs_info drm_framebuffer_debugfs_list[] = {
{ "framebuffer", drm_framebuffer_info, 0 },
};

void drm_framebuffer_debugfs_init(struct drm_minor *minor)
{
- drm_debugfs_create_files(drm_framebuffer_debugfs_list,
- ARRAY_SIZE(drm_framebuffer_debugfs_list),
- minor->debugfs_root, minor);
+ drm_debugfs_add_files(minor->dev, drm_framebuffer_debugfs_list,
+ ARRAY_SIZE(drm_framebuffer_debugfs_list));
}
#endif
diff --git a/drivers/gpu/drm/drm_gem_vram_helper.c b/drivers/gpu/drm/drm_gem_vram_helper.c
index b6c7e3803bb3..c06368dcacb2 100644
--- a/drivers/gpu/drm/drm_gem_vram_helper.c
+++ b/drivers/gpu/drm/drm_gem_vram_helper.c
@@ -956,8 +956,8 @@ static struct ttm_device_funcs bo_driver = {

static int drm_vram_mm_debugfs(struct seq_file *m, void *data)
{
- struct drm_info_node *node = (struct drm_info_node *) m->private;
- struct drm_vram_mm *vmm = node->minor->dev->vram_mm;
+ struct drm_debugfs_entry *entry = m->private;
+ struct drm_device *dev = entry->dev;
struct ttm_resource_manager *man = ttm_manager_type(&vmm->bdev, TTM_PL_VRAM);
struct drm_printer p = drm_seq_file_printer(m);

@@ -965,7 +965,7 @@ static int drm_vram_mm_debugfs(struct seq_file *m, void *data)
return 0;
}

-static const struct drm_info_list drm_vram_mm_debugfs_list[] = {
+static const struct drm_debugfs_info drm_vram_mm_debugfs_list[] = {
{ "vram-mm", drm_vram_mm_debugfs, 0, NULL },
};

@@ -977,9 +977,8 @@ static const struct drm_info_list drm_vram_mm_debugfs_list[] = {
*/
void drm_vram_mm_debugfs_init(struct drm_minor *minor)
{
- drm_debugfs_create_files(drm_vram_mm_debugfs_list,
- ARRAY_SIZE(drm_vram_mm_debugfs_list),
- minor->debugfs_root, minor);
+ drm_debugfs_add_files(minor->dev, drm_vram_mm_debugfs_list,
+ ARRAY_SIZE(drm_vram_mm_debugfs_list));
}
EXPORT_SYMBOL(drm_vram_mm_debugfs_init);

--
2.38.1

2022-11-23 04:07:36

by kernel test robot

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Subject: Re: [PATCH 2/6] drm: use new debugfs device-centered functions on DRM core files

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2022-11-23 10:03:56

by kernel test robot

[permalink] [raw]

Subject: Re: [PATCH 2/6] drm: use new debugfs device-centered functions on DRM core files

Hi Ma?ra,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on drm-misc/drm-misc-next]
[also build test ERROR on drm/drm-next linus/master v6.1-rc6 next-20221122]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]

url: https://github.com/intel-lab-lkp/linux/commits/Ma-ra-Canal/Introduce-debugfs-device-centered-functions/20221123-030721
base: git://anongit.freedesktop.org/drm/drm-misc drm-misc-next
patch link: https://lore.kernel.org/r/20221122190314.185015-3-mcanal%40igalia.com
patch subject: [PATCH 2/6] drm: use new debugfs device-centered functions on DRM core files
config: s390-randconfig-r044-20221120
compiler: clang version 16.0.0 (https://github.com/llvm/llvm-project af8c49dc1ec44339d915d988ffe0f38da68ca0e7)
reproduce (this is a W=1 build):
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# install s390 cross compiling tool for clang build
# apt-get install binutils-s390x-linux-gnu
# https://github.com/intel-lab-lkp/linux/commit/90d303b7798f22a8e99b4c86b2dfc6a43f74b678
git remote add linux-review https://github.com/intel-lab-lkp/linux
git fetch --no-tags linux-review Ma-ra-Canal/Introduce-debugfs-device-centered-functions/20221123-030721
git checkout 90d303b7798f22a8e99b4c86b2dfc6a43f74b678
# save the config file
mkdir build_dir && cp config build_dir/.config
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=s390 SHELL=/bin/bash drivers/gpu/drm/

If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <[email protected]>

All errors (new ones prefixed by >>):

In file included from drivers/gpu/drm/drm_gem_vram_helper.c:3:
In file included from include/linux/iosys-map.h:10:
In file included from include/linux/io.h:13:
In file included from arch/s390/include/asm/io.h:75:
include/asm-generic/io.h:547:31: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
val = __raw_readb(PCI_IOBASE + addr);
~~~~~~~~~~ ^
include/asm-generic/io.h:560:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
val = __le16_to_cpu((__le16 __force)__raw_readw(PCI_IOBASE + addr));
~~~~~~~~~~ ^
include/uapi/linux/byteorder/big_endian.h:37:59: note: expanded from macro '__le16_to_cpu'
#define __le16_to_cpu(x) __swab16((__force __u16)(__le16)(x))
^
include/uapi/linux/swab.h:102:54: note: expanded from macro '__swab16'
#define __swab16(x) (__u16)__builtin_bswap16((__u16)(x))
^
In file included from drivers/gpu/drm/drm_gem_vram_helper.c:3:
In file included from include/linux/iosys-map.h:10:
In file included from include/linux/io.h:13:
In file included from arch/s390/include/asm/io.h:75:
include/asm-generic/io.h:573:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
val = __le32_to_cpu((__le32 __force)__raw_readl(PCI_IOBASE + addr));
~~~~~~~~~~ ^
include/uapi/linux/byteorder/big_endian.h:35:59: note: expanded from macro '__le32_to_cpu'
#define __le32_to_cpu(x) __swab32((__force __u32)(__le32)(x))
^
include/uapi/linux/swab.h:115:54: note: expanded from macro '__swab32'
#define __swab32(x) (__u32)__builtin_bswap32((__u32)(x))
^
In file included from drivers/gpu/drm/drm_gem_vram_helper.c:3:
In file included from include/linux/iosys-map.h:10:
In file included from include/linux/io.h:13:
In file included from arch/s390/include/asm/io.h:75:
include/asm-generic/io.h:584:33: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
__raw_writeb(value, PCI_IOBASE + addr);
~~~~~~~~~~ ^
include/asm-generic/io.h:594:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
__raw_writew((u16 __force)cpu_to_le16(value), PCI_IOBASE + addr);
~~~~~~~~~~ ^
include/asm-generic/io.h:604:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
__raw_writel((u32 __force)cpu_to_le32(value), PCI_IOBASE + addr);
~~~~~~~~~~ ^
include/asm-generic/io.h:692:20: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
readsb(PCI_IOBASE + addr, buffer, count);
~~~~~~~~~~ ^
include/asm-generic/io.h:700:20: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
readsw(PCI_IOBASE + addr, buffer, count);
~~~~~~~~~~ ^
include/asm-generic/io.h:708:20: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
readsl(PCI_IOBASE + addr, buffer, count);
~~~~~~~~~~ ^
include/asm-generic/io.h:717:21: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
writesb(PCI_IOBASE + addr, buffer, count);
~~~~~~~~~~ ^
include/asm-generic/io.h:726:21: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
writesw(PCI_IOBASE + addr, buffer, count);
~~~~~~~~~~ ^
include/asm-generic/io.h:735:21: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
writesl(PCI_IOBASE + addr, buffer, count);
~~~~~~~~~~ ^
>> drivers/gpu/drm/drm_gem_vram_helper.c:961:55: error: use of undeclared identifier 'vmm'
struct ttm_resource_manager *man = ttm_manager_type(&vmm->bdev, TTM_PL_VRAM);
^
12 warnings and 1 error generated.

vim +/vmm +961 drivers/gpu/drm/drm_gem_vram_helper.c

6b5ce4a1fb8489 Thomas Zimmermann 2019-09-11 952
6b5ce4a1fb8489 Thomas Zimmermann 2019-09-11 953 /*
6b5ce4a1fb8489 Thomas Zimmermann 2019-09-11 954 * struct drm_vram_mm
6b5ce4a1fb8489 Thomas Zimmermann 2019-09-11 955 */
6b5ce4a1fb8489 Thomas Zimmermann 2019-09-11 956
6b5ce4a1fb8489 Thomas Zimmermann 2019-09-11 957 static int drm_vram_mm_debugfs(struct seq_file *m, void *data)
6b5ce4a1fb8489 Thomas Zimmermann 2019-09-11 958 {
90d303b7798f22 Ma?ra Canal 2022-11-22 959 struct drm_debugfs_entry *entry = m->private;
90d303b7798f22 Ma?ra Canal 2022-11-22 960 struct drm_device *dev = entry->dev;
9de59bc201496f Dave Airlie 2020-08-04 @961 struct ttm_resource_manager *man = ttm_manager_type(&vmm->bdev, TTM_PL_VRAM);
6b5ce4a1fb8489 Thomas Zimmermann 2019-09-11 962 struct drm_printer p = drm_seq_file_printer(m);
6b5ce4a1fb8489 Thomas Zimmermann 2019-09-11 963
9de59bc201496f Dave Airlie 2020-08-04 964 ttm_resource_manager_debug(man, &p);
6b5ce4a1fb8489 Thomas Zimmermann 2019-09-11 965 return 0;
6b5ce4a1fb8489 Thomas Zimmermann 2019-09-11 966 }
6b5ce4a1fb8489 Thomas Zimmermann 2019-09-11 967

--
0-DAY CI Kernel Test Service
https://01.org/lkp

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