Unverified Commit 0df4a13c authored by Maíra Canal's avatar Maíra Canal
Browse files

drm/v3d: Add modparam for turning off Big/Super Pages 



Add a modparam for turning off Big/Super Pages to make sure that if an
user doesn't want Big/Super Pages enabled, it can disabled it by setting
the modparam to false.

Signed-off-by: default avatarMaíra Canal <mcanal@igalia.com>
Reviewed-by: default avatarTvrtko Ursulin <tvrtko.ursulin@igalia.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240923141348.2422499-11-mcanal@igalia.com
parent 20d69e89

drivers/gpu/drm/v3d/v3d_drv.c

+7 −0
Original line number Diff line number Diff line
@@ -36,6 +36,13 @@ 
#define DRIVER_MINOR 0

#define DRIVER_PATCHLEVEL 0



/* Only expose the `super_pages` modparam if THP is enabled. */

#ifdef CONFIG_TRANSPARENT_HUGEPAGE

bool super_pages = true;

module_param_named(super_pages, super_pages, bool, 0400);

MODULE_PARM_DESC(super_pages, "Enable/Disable Super Pages support.");

#endif



static int v3d_get_param_ioctl(struct drm_device *dev, void *data,

			       struct drm_file *file_priv)

{

drivers/gpu/drm/v3d/v3d_drv.h

+1 −0
Original line number Diff line number Diff line
@@ -539,6 +539,7 @@ void v3d_invalidate_caches(struct v3d_dev *v3d); 
void v3d_clean_caches(struct v3d_dev *v3d);



/* v3d_gemfs.c */

extern bool super_pages;

void v3d_gemfs_init(struct v3d_dev *v3d);

void v3d_gemfs_fini(struct v3d_dev *v3d);

drivers/gpu/drm/v3d/v3d_gemfs.c

+4 −0
Original line number Diff line number Diff line
@@ -20,6 +20,10 @@ void v3d_gemfs_init(struct v3d_dev *v3d) 
	if (!IS_ENABLED(CONFIG_TRANSPARENT_HUGEPAGE))

		goto err;



	/* The user doesn't want to enable Super Pages */

	if (!super_pages)

		goto err;



	type = get_fs_type("tmpfs");

	if (!type)

		goto err;