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Commit dff13e51 authored by Ramakant Singh's avatar Ramakant Singh Committed by Ian Maund
Browse files

msm: mdss: sysfs node to disable smart blit 



Add "smart_blit" node in sysfs to enable or disable blit
optimization through adb shell.
"echo 0 > smart_blit" disable smart blit
"echo 1 > smart_blit" enable smart blit

Change-Id: Iae8b46f3ac656ca8f38dbf9f01992e77caf7452d
Signed-off-by: default avatarRamakant Singh <ramaka@codeaurora.org>
parent d4fedca0

drivers/video/msm/mdss/mdp3.c

+32 −1
Original line number Diff line number Diff line
@@ -924,7 +924,7 @@ static int mdp3_hw_init(void) 
	}

	mdp3_res->intf[MDP3_DMA_OUTPUT_SEL_AHB].available = 0;

	mdp3_res->intf[MDP3_DMA_OUTPUT_SEL_LCDC].available = 0;



	mdp3_res->smart_blit_en = true;

	return 0;

}
@@ -2246,8 +2246,39 @@ static ssize_t mdp3_show_capabilities(struct device *dev, 


static DEVICE_ATTR(caps, S_IRUGO, mdp3_show_capabilities, NULL);



static ssize_t mdp3_store_smart_blit(struct device *dev,

		struct device_attribute *attr, const char *buf, size_t len)

{

	u32 data = -1;

	int rc = 0;

	rc = kstrtoint(buf, 10, &data);

	if (rc) {

		pr_err("kstrtoint failed. rc=%d\n", rc);

		return rc;

	} else {

		mdp3_res->smart_blit_en = data ? true : false;

		pr_debug("mdp3 smart blit %s\n",

			 mdp3_res->smart_blit_en ? "ENABLED" : "DISABLED");

	}

	return len;

}



static ssize_t mdp3_show_smart_blit(struct device *dev,

		struct device_attribute *attr, char *buf)

{

	ssize_t ret = 0;

	pr_debug("mdp3 smart blit %s\n",

		mdp3_res->smart_blit_en ? "ENABLED" : "DISABLED");

	ret = snprintf(buf, PAGE_SIZE, "%d\n", mdp3_res->smart_blit_en);

	return ret;

}



static DEVICE_ATTR(smart_blit, S_IRUGO | S_IWUSR | S_IWGRP, mdp3_show_smart_blit,

                                        mdp3_store_smart_blit);



static struct attribute *mdp3_fs_attrs[] = {

	&dev_attr_caps.attr,

	&dev_attr_smart_blit.attr,

	NULL

};

drivers/video/msm/mdss/mdp3.h

+2 −1
Original line number Diff line number Diff line 
/* Copyright (c) 2013-2014, The Linux Foundation. All rights reserved.

/* Copyright (c) 2013-2015, The Linux Foundation. All rights reserved.

 * Copyright (C) 2007 Google Incorporated

 *

 * This program is free software; you can redistribute it and/or modify
@@ -180,6 +180,7 @@ struct mdp3_hw_resource { 
	struct regulator *vdd_cx;

	struct regulator *fs;

	bool fs_ena;

	bool smart_blit_en;

};



struct mdp3_img_data {

drivers/video/msm/mdss/mdp3_ppp.c

+5 −0
Original line number Diff line number Diff line
@@ -465,6 +465,7 @@ int mdp3_calc_ppp_res(struct msm_fb_data_type *mfd, struct blit_req_list *lreq) 
	u32 fps = 0;

	int smart_blit_fg_indx = -1;

	u32 smart_blit_bg_read_bw = 0;



	ATRACE_BEGIN(__func__);

	lcount = lreq->count;

	if (lcount == 0) {
@@ -1232,6 +1233,10 @@ static bool is_blit_optimization_possible(struct blit_req_list *req, int indx) 
	int next = indx + 1;

	bool status = false;



	if (!(mdp3_res->smart_blit_en)) {

		pr_debug("Smart BLIT disabled from sysfs\n");

		return status;

	}

	if (next < req->count) {

		/*

		 * Check userspace Smart BLIT Flag for current and next request