More than 2x speedup on darktable benchmark which was bottlenecked on page allocation/pinning.
Signed-off-by: Rob Clark <[email protected]> --- drivers/gpu/drm/msm/msm_drv.c | 22 ++++++++++++++++++++++ 1 file changed, 22 insertions(+) diff --git a/drivers/gpu/drm/msm/msm_drv.c b/drivers/gpu/drm/msm/msm_drv.c index 73d99bde26f1..8129e7d229d9 100644 --- a/drivers/gpu/drm/msm/msm_drv.c +++ b/drivers/gpu/drm/msm/msm_drv.c @@ -58,9 +58,29 @@ static bool separate_gpu_kms; MODULE_PARM_DESC(separate_gpu_drm, "Use separate DRM device for the GPU (0=single DRM device for both GPU and display (default), 1=two DRM devices)"); module_param(separate_gpu_kms, bool, 0400); +#ifdef CONFIG_TRANSPARENT_HUGEPAGE +static bool transparent_hugepage = true; +module_param(transparent_hugepage, bool, 0400); +MODULE_PARM_DESC(transparent_hugepage, "Use a dedicated tmpfs mount point with Transparent Hugepage enabled (true = default)"); +#endif + DECLARE_FAULT_ATTR(fail_gem_alloc); DECLARE_FAULT_ATTR(fail_gem_iova); +static void msm_gem_thp_init(struct drm_device *dev) +{ + int err; + + if (IS_ENABLED(CONFIG_TRANSPARENT_HUGEPAGE) && !transparent_hugepage) + return; + + err = drm_gem_huge_mnt_create(dev, "within_size"); + if (drm_gem_get_huge_mnt(dev)) + drm_info(dev, "Using Transparent Hugepage\n"); + else if (err) + drm_warn(dev, "Can't use Transparent Hugepage (%d)\n", err); +} + bool msm_gpu_no_components(void) { return separate_gpu_kms; @@ -178,6 +198,8 @@ static int msm_drm_init(struct device *dev, const struct drm_driver *drv, if (priv->kms_init) msm_drm_kms_post_init(dev); + msm_gem_thp_init(ddev); + return 0; err_msm_uninit: -- 2.55.0
