On Fri, May 11, 2018 at 08:19:36PM +0530, Rajesh Yadav wrote:
> Currently, msm_drv was creating dpu_power_handle client
> which was used by dpu_dbg module to enable power resources
> before register debug dumping.
>
> Now since, the mdss core power resource handling is
> implemented via runtime_pm and same has been removed
> from dpu_power_handle. Remove dpu_power_handle dependency
> from msm_drv and use pm_runtime_get/put_sync calls from
> dpu_dbg module on dpu_mdss top level device for core,
> ahb clock and power resource management (for register access).
>
> Changes in v2:
> - resolved conflict in dpu_core_perf_init
> - dropped (Reviewed-by: Sean Paul) due to above change
Reviewed-by: Sean Paul <seanpaul@xxxxxxxxxxxx>
>
> Signed-off-by: Rajesh Yadav <ryadav@xxxxxxxxxxxxxx>
> ---
> drivers/gpu/drm/msm/disp/dpu1/dpu_core_perf.c | 7 -------
> drivers/gpu/drm/msm/disp/dpu1/dpu_core_perf.h | 4 ----
> drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c | 3 +--
> drivers/gpu/drm/msm/dpu_dbg.c | 18 +++++++-----------
> drivers/gpu/drm/msm/dpu_dbg.h | 13 ++-----------
> drivers/gpu/drm/msm/msm_drv.c | 27 +--------------------------
> drivers/gpu/drm/msm/msm_drv.h | 1 -
> 7 files changed, 11 insertions(+), 62 deletions(-)
>
> diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_core_perf.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_core_perf.c
> index 5b79077..2cf3fca 100644
> --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_core_perf.c
> +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_core_perf.c
> @@ -673,18 +673,11 @@ int dpu_core_perf_init(struct dpu_core_perf *perf,
> struct drm_device *dev,
> struct dpu_mdss_cfg *catalog,
> struct dpu_power_handle *phandle,
> - struct dpu_power_client *pclient,
> struct dss_clk *core_clk)
> {
> - if (!pclient) {
> - DPU_ERROR("invalid parameters\n");
> - return -EINVAL;
> - }
> -
> perf->dev = dev;
> perf->catalog = catalog;
> perf->phandle = phandle;
> - perf->pclient = pclient;
> perf->core_clk = core_clk;
>
> perf->max_core_clk_rate = core_clk->max_rate;
> diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_core_perf.h b/drivers/gpu/drm/msm/disp/dpu1/dpu_core_perf.h
> index 9c1a719..cde48df 100644
> --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_core_perf.h
> +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_core_perf.h
> @@ -53,7 +53,6 @@ struct dpu_core_perf_tune {
> * @debugfs_root: top level debug folder
> * @catalog: Pointer to catalog configuration
> * @phandle: Pointer to power handler
> - * @pclient: Pointer to power client
> * @core_clk: Pointer to core clock structure
> * @core_clk_rate: current core clock rate
> * @max_core_clk_rate: maximum allowable core clock rate
> @@ -68,7 +67,6 @@ struct dpu_core_perf {
> struct dentry *debugfs_root;
> struct dpu_mdss_cfg *catalog;
> struct dpu_power_handle *phandle;
> - struct dpu_power_client *pclient;
> struct dss_clk *core_clk;
> u64 core_clk_rate;
> u64 max_core_clk_rate;
> @@ -115,14 +113,12 @@ void dpu_core_perf_crtc_update(struct drm_crtc *crtc,
> * @dev: Pointer to drm device
> * @catalog: Pointer to catalog
> * @phandle: Pointer to power handle
> - * @pclient: Pointer to power client
> * @core_clk: pointer to core clock
> */
> int dpu_core_perf_init(struct dpu_core_perf *perf,
> struct drm_device *dev,
> struct dpu_mdss_cfg *catalog,
> struct dpu_power_handle *phandle,
> - struct dpu_power_client *pclient,
> struct dss_clk *core_clk);
>
> /**
> diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c
> index 349bda5..9c3b220 100644
> --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c
> +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c
> @@ -1721,8 +1721,7 @@ static int dpu_kms_hw_init(struct msm_kms *kms)
> #endif
>
> rc = dpu_core_perf_init(&dpu_kms->perf, dev, dpu_kms->catalog,
> - &priv->phandle, priv->pclient,
> - _dpu_kms_get_clk(dpu_kms, "core_clk"));
> + &priv->phandle, _dpu_kms_get_clk(dpu_kms, "core_clk"));
> if (rc) {
> DPU_ERROR("failed to init perf %d\n", rc);
> goto perf_err;
> diff --git a/drivers/gpu/drm/msm/dpu_dbg.c b/drivers/gpu/drm/msm/dpu_dbg.c
> index 4a39b82..27538bc 100644
> --- a/drivers/gpu/drm/msm/dpu_dbg.c
> +++ b/drivers/gpu/drm/msm/dpu_dbg.c
> @@ -20,6 +20,7 @@
> #include <linux/dma-buf.h>
> #include <linux/slab.h>
> #include <linux/list_sort.h>
> +#include <linux/pm_runtime.h>
>
> #include "dpu_dbg.h"
> #include "disp/dpu1/dpu_hw_catalog.h"
> @@ -167,7 +168,6 @@ struct dpu_dbg_vbif_debug_bus {
> * @evtlog: event log instance
> * @reg_base_list: list of register dumping regions
> * @dev: device pointer
> - * @power_ctrl: callback structure for enabling power for reading hw registers
> * @req_dump_blks: list of blocks requested for dumping
> * @panic_on_err: whether to kernel panic after triggering dump via debugfs
> * @dump_work: work struct for deferring register dump work to separate thread
> @@ -182,7 +182,6 @@ struct dpu_dbg_vbif_debug_bus {
> struct dpu_dbg_evtlog *evtlog;
> struct list_head reg_base_list;
> struct device *dev;
> - struct dpu_dbg_power_ctrl power_ctrl;
>
> struct dpu_dbg_reg_base *req_dump_blks[DPU_DBG_BASE_MAX];
>
> @@ -2008,12 +2007,10 @@ static void _dpu_debug_bus_ppb1_dump(void __iomem *mem_base,
> */
> static inline void _dpu_dbg_enable_power(int enable)
> {
> - if (!dpu_dbg_base.power_ctrl.enable_fn)
> - return;
> - dpu_dbg_base.power_ctrl.enable_fn(
> - dpu_dbg_base.power_ctrl.handle,
> - dpu_dbg_base.power_ctrl.client,
> - enable);
> + if (enable)
> + pm_runtime_get_sync(dpu_dbg_base.dev);
> + else
> + pm_runtime_put_sync(dpu_dbg_base.dev);
> }
>
> /**
> @@ -3099,16 +3096,15 @@ void dpu_dbg_init_dbg_buses(u32 hwversion)
> }
> }
>
> -int dpu_dbg_init(struct device *dev, struct dpu_dbg_power_ctrl *power_ctrl)
> +int dpu_dbg_init(struct device *dev)
> {
> - if (!dev || !power_ctrl) {
> + if (!dev) {
> pr_err("invalid params\n");
> return -EINVAL;
> }
>
> INIT_LIST_HEAD(&dpu_dbg_base.reg_base_list);
> dpu_dbg_base.dev = dev;
> - dpu_dbg_base.power_ctrl = *power_ctrl;
>
> dpu_dbg_base.evtlog = dpu_evtlog_init();
> if (IS_ERR_OR_NULL(dpu_dbg_base.evtlog))
> diff --git a/drivers/gpu/drm/msm/dpu_dbg.h b/drivers/gpu/drm/msm/dpu_dbg.h
> index e79b5aa..283dbbc 100644
> --- a/drivers/gpu/drm/msm/dpu_dbg.h
> +++ b/drivers/gpu/drm/msm/dpu_dbg.h
> @@ -71,12 +71,6 @@ enum dpu_dbg_dump_flag {
> #define DPU_EVTLOG_BUF_MAX 512
> #define DPU_EVTLOG_BUF_ALIGN 32
>
> -struct dpu_dbg_power_ctrl {
> - void *handle;
> - void *client;
> - int (*enable_fn)(void *handle, void *client, bool enable);
> -};
> -
> struct dpu_dbg_evtlog_log {
> s64 time;
> const char *name;
> @@ -211,11 +205,9 @@ ssize_t dpu_evtlog_dump_to_buffer(struct dpu_dbg_evtlog *evtlog,
> /**
> * dpu_dbg_init - initialize global dpu debug facilities: evtlog, regdump
> * @dev: device handle
> - * @power_ctrl: power control callback structure for enabling clocks
> - * during register dumping
> * Returns: 0 or -ERROR
> */
> -int dpu_dbg_init(struct device *dev, struct dpu_dbg_power_ctrl *power_ctrl);
> +int dpu_dbg_init(struct device *dev);
>
> /**
> * dpu_dbg_debugfs_register - register entries at the given debugfs dir
> @@ -359,8 +351,7 @@ static inline void dpu_dbg_init_dbg_buses(u32 hwversion)
> {
> }
>
> -static inline int dpu_dbg_init(struct device *dev,
> - struct dpu_dbg_power_ctrl *power_ctrl)
> +static inline int dpu_dbg_init(struct device *dev)
> {
> return 0;
> }
> diff --git a/drivers/gpu/drm/msm/msm_drv.c b/drivers/gpu/drm/msm/msm_drv.c
> index 5470529..5c267cd 100644
> --- a/drivers/gpu/drm/msm/msm_drv.c
> +++ b/drivers/gpu/drm/msm/msm_drv.c
> @@ -340,7 +340,6 @@ static int msm_drm_uninit(struct device *dev)
> component_unbind_all(dev, ddev);
>
> #ifdef CONFIG_DRM_MSM_DPU
> - dpu_power_client_destroy(&priv->phandle, priv->pclient);
> dpu_power_resource_deinit(pdev, &priv->phandle);
> dpu_dbg_destroy();
> #endif
> @@ -464,13 +463,6 @@ static int msm_component_bind_all(struct device *dev,
> }
> #endif
>
> -#ifdef CONFIG_DRM_MSM_DPU
> -static int msm_power_enable_wrapper(void *handle, void *client, bool enable)
> -{
> - return dpu_power_resource_enable(handle, client, enable);
> -}
> -#endif
> -
> static int msm_drm_init(struct device *dev, struct drm_driver *drv)
> {
> struct platform_device *pdev = to_platform_device(dev);
> @@ -479,10 +471,6 @@ static int msm_drm_init(struct device *dev, struct drm_driver *drv)
> struct msm_kms *kms;
> struct msm_mdss *mdss;
>
> -#ifdef CONFIG_DRM_MSM_DPU
> - struct dpu_dbg_power_ctrl dbg_power_ctrl = { 0 };
> -#endif
> -
> int ret, i;
> struct sched_param param;
>
> @@ -537,18 +525,7 @@ static int msm_drm_init(struct device *dev, struct drm_driver *drv)
> goto power_init_fail;
> }
>
> - priv->pclient = dpu_power_client_create(&priv->phandle, "dpu");
> - if (IS_ERR_OR_NULL(priv->pclient)) {
> - pr_err("dpu power client create failed\n");
> - ret = -EINVAL;
> - goto power_client_fail;
> - }
> -
> - dbg_power_ctrl.handle = &priv->phandle;
> - dbg_power_ctrl.client = priv->pclient;
> - dbg_power_ctrl.enable_fn = msm_power_enable_wrapper;
> -
> - ret = dpu_dbg_init(&pdev->dev, &dbg_power_ctrl);
> + ret = dpu_dbg_init(&pdev->dev);
> if (ret) {
> dev_err(dev, "failed to init dpu dbg: %d\n", ret);
> goto dbg_init_fail;
> @@ -756,8 +733,6 @@ static int msm_drm_init(struct device *dev, struct drm_driver *drv)
> #ifdef CONFIG_DRM_MSM_DPU
> dpu_dbg_destroy();
> dbg_init_fail:
> - dpu_power_client_destroy(&priv->phandle, priv->pclient);
> -power_client_fail:
> dpu_power_resource_deinit(pdev, &priv->phandle);
> power_init_fail:
> #endif
> diff --git a/drivers/gpu/drm/msm/msm_drv.h b/drivers/gpu/drm/msm/msm_drv.h
> index 22a3096..f9ae96f 100644
> --- a/drivers/gpu/drm/msm/msm_drv.h
> +++ b/drivers/gpu/drm/msm/msm_drv.h
> @@ -376,7 +376,6 @@ struct msm_drm_private {
> struct msm_kms *kms;
>
> struct dpu_power_handle phandle;
> - struct dpu_power_client *pclient;
>
> /* subordinate devices, if present: */
> struct platform_device *gpu_pdev;
> --
> The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
> a Linux Foundation Collaborative Project
>
--
Sean Paul, Software Engineer, Google / Chromium OS
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