diff options
Diffstat (limited to 'drivers/gpu/drm/panfrost/panfrost_drv.c')
| -rw-r--r-- | drivers/gpu/drm/panfrost/panfrost_drv.c | 45 |
1 files changed, 43 insertions, 2 deletions
diff --git a/drivers/gpu/drm/panfrost/panfrost_drv.c b/drivers/gpu/drm/panfrost/panfrost_drv.c index 671eed4ad890..04d615df5259 100644 --- a/drivers/gpu/drm/panfrost/panfrost_drv.c +++ b/drivers/gpu/drm/panfrost/panfrost_drv.c @@ -3,6 +3,10 @@ /* Copyright 2019 Linaro, Ltd., Rob Herring <robh@kernel.org> */ /* Copyright 2019 Collabora ltd. */ +#ifdef CONFIG_ARM_ARCH_TIMER +#include <asm/arch_timer.h> +#endif + #include <linux/module.h> #include <linux/of.h> #include <linux/pagemap.h> @@ -21,13 +25,33 @@ #include "panfrost_gpu.h" #include "panfrost_perfcnt.h" +#define JOB_REQUIREMENTS (PANFROST_JD_REQ_FS | PANFROST_JD_REQ_CYCLE_COUNT) + static bool unstable_ioctls; module_param_unsafe(unstable_ioctls, bool, 0600); +static int panfrost_ioctl_query_timestamp(struct panfrost_device *pfdev, + u64 *arg) +{ + int ret; + + ret = pm_runtime_resume_and_get(pfdev->dev); + if (ret) + return ret; + + panfrost_cycle_counter_get(pfdev); + *arg = panfrost_timestamp_read(pfdev); + panfrost_cycle_counter_put(pfdev); + + pm_runtime_put(pfdev->dev); + return 0; +} + static int panfrost_ioctl_get_param(struct drm_device *ddev, void *data, struct drm_file *file) { struct drm_panfrost_get_param *param = data; struct panfrost_device *pfdev = ddev->dev_private; + int ret; if (param->pad != 0) return -EINVAL; @@ -69,6 +93,21 @@ static int panfrost_ioctl_get_param(struct drm_device *ddev, void *data, struct PANFROST_FEATURE_ARRAY(JS_FEATURES, js_features, 15); PANFROST_FEATURE(NR_CORE_GROUPS, nr_core_groups); PANFROST_FEATURE(THREAD_TLS_ALLOC, thread_tls_alloc); + + case DRM_PANFROST_PARAM_SYSTEM_TIMESTAMP: + ret = panfrost_ioctl_query_timestamp(pfdev, ¶m->value); + if (ret) + return ret; + break; + + case DRM_PANFROST_PARAM_SYSTEM_TIMESTAMP_FREQUENCY: +#ifdef CONFIG_ARM_ARCH_TIMER + param->value = arch_timer_get_cntfrq(); +#else + param->value = 0; +#endif + break; + default: return -EINVAL; } @@ -245,7 +284,7 @@ static int panfrost_ioctl_submit(struct drm_device *dev, void *data, if (!args->jc) return -EINVAL; - if (args->requirements && args->requirements != PANFROST_JD_REQ_FS) + if (args->requirements & ~JOB_REQUIREMENTS) return -EINVAL; if (args->out_sync > 0) { @@ -584,6 +623,8 @@ static const struct file_operations panfrost_drm_driver_fops = { * - 1.0 - initial interface * - 1.1 - adds HEAP and NOEXEC flags for CREATE_BO * - 1.2 - adds AFBC_FEATURES query + * - 1.3 - adds JD_REQ_CYCLE_COUNT job requirement for SUBMIT + * - adds SYSTEM_TIMESTAMP and SYSTEM_TIMESTAMP_FREQUENCY queries */ static const struct drm_driver panfrost_drm_driver = { .driver_features = DRIVER_RENDER | DRIVER_GEM | DRIVER_SYNCOBJ, @@ -597,7 +638,7 @@ static const struct drm_driver panfrost_drm_driver = { .desc = "panfrost DRM", .date = "20180908", .major = 1, - .minor = 2, + .minor = 3, .gem_create_object = panfrost_gem_create_object, .gem_prime_import_sg_table = panfrost_gem_prime_import_sg_table, |