These changes are the raw update to linux-4.4.6-rt14. Kernel sources

are taken from kernel.org, and rt patch from the rt wiki download page.

During the rebasing, the following patch collided:

Force tick interrupt and get rid of softirq magic(I70131fb85).

Collisions have been removed because its logic was found on the
source already.

Change-Id: I7f57a4081d9deaa0d9ccfc41a6c8daccdee3b769
Signed-off-by: José Pekkarinen <jose.pekkarinen@nokia.com>

1 files changed, 0 insertions, 520 deletions

diff --git a/kernel/drivers/video/fbdev/msm/mdp.c b/kernel/drivers/video/fbdev/msm/mdp.c
deleted file mode 100644
index 113c7876c..000000000
--- a/kernel/drivers/video/fbdev/msm/mdp.c
+++ /dev/null
@@ -1,520 +0,0 @@
-/* drivers/video/msm_fb/mdp.c
- *
- * MSM MDP Interface (used by framebuffer core)
- *
- * Copyright (C) 2007 QUALCOMM Incorporated
- * Copyright (C) 2007 Google Incorporated
- *
- * This software is licensed under the terms of the GNU General Public
- * License version 2, as published by the Free Software Foundation, and
- * may be copied, distributed, and modified under those terms.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
-
-#include <linux/kernel.h>
-#include <linux/fb.h>
-#include <linux/msm_mdp.h>
-#include <linux/interrupt.h>
-#include <linux/wait.h>
-#include <linux/clk.h>
-#include <linux/file.h>
-#include <linux/major.h>
-#include <linux/slab.h>
-
-#include <linux/platform_data/video-msm_fb.h>
-#include <linux/platform_device.h>
-#include <linux/export.h>
-
-#include "mdp_hw.h"
-
-struct class *mdp_class;
-
-#define MDP_CMD_DEBUG_ACCESS_BASE (0x10000)
-
-static uint16_t mdp_default_ccs[] = {
-	0x254, 0x000, 0x331, 0x254, 0xF38, 0xE61, 0x254, 0x409, 0x000,
-	0x010, 0x080, 0x080
-};
-
-static DECLARE_WAIT_QUEUE_HEAD(mdp_dma2_waitqueue);
-static DECLARE_WAIT_QUEUE_HEAD(mdp_ppp_waitqueue);
-static struct msmfb_callback *dma_callback;
-static struct clk *clk;
-static unsigned int mdp_irq_mask;
-static DEFINE_SPINLOCK(mdp_lock);
-DEFINE_MUTEX(mdp_mutex);
-
-static int enable_mdp_irq(struct mdp_info *mdp, uint32_t mask)
-{
-	unsigned long irq_flags;
-	int ret = 0;
-
-	BUG_ON(!mask);
-
-	spin_lock_irqsave(&mdp_lock, irq_flags);
-	/* if the mask bits are already set return an error, this interrupt
-	 * is already enabled */
-	if (mdp_irq_mask & mask) {
-		printk(KERN_ERR "mdp irq already on already on %x %x\n",
-		       mdp_irq_mask, mask);
-		ret = -1;
-	}
-	/* if the mdp irq is not already enabled enable it */
-	if (!mdp_irq_mask) {
-		if (clk)
-			clk_enable(clk);
-		enable_irq(mdp->irq);
-	}
-
-	/* update the irq mask to reflect the fact that the interrupt is
-	 * enabled */
-	mdp_irq_mask |= mask;
-	spin_unlock_irqrestore(&mdp_lock, irq_flags);
-	return ret;
-}
-
-static int locked_disable_mdp_irq(struct mdp_info *mdp, uint32_t mask)
-{
-	/* this interrupt is already disabled! */
-	if (!(mdp_irq_mask & mask)) {
-		printk(KERN_ERR "mdp irq already off %x %x\n",
-		       mdp_irq_mask, mask);
-		return -1;
-	}
-	/* update the irq mask to reflect the fact that the interrupt is
-	 * disabled */
-	mdp_irq_mask &= ~(mask);
-	/* if no one is waiting on the interrupt, disable it */
-	if (!mdp_irq_mask) {
-		disable_irq_nosync(mdp->irq);
-		if (clk)
-			clk_disable(clk);
-	}
-	return 0;
-}
-
-static int disable_mdp_irq(struct mdp_info *mdp, uint32_t mask)
-{
-	unsigned long irq_flags;
-	int ret;
-
-	spin_lock_irqsave(&mdp_lock, irq_flags);
-	ret = locked_disable_mdp_irq(mdp, mask);
-	spin_unlock_irqrestore(&mdp_lock, irq_flags);
-	return ret;
-}
-
-static irqreturn_t mdp_isr(int irq, void *data)
-{
-	uint32_t status;
-	unsigned long irq_flags;
-	struct mdp_info *mdp = data;
-
-	spin_lock_irqsave(&mdp_lock, irq_flags);
-
-	status = mdp_readl(mdp, MDP_INTR_STATUS);
-	mdp_writel(mdp, status, MDP_INTR_CLEAR);
-
-	status &= mdp_irq_mask;
-	if (status & DL0_DMA2_TERM_DONE) {
-		if (dma_callback) {
-			dma_callback->func(dma_callback);
-			dma_callback = NULL;
-		}
-		wake_up(&mdp_dma2_waitqueue);
-	}
-
-	if (status & DL0_ROI_DONE)
-		wake_up(&mdp_ppp_waitqueue);
-
-	if (status)
-		locked_disable_mdp_irq(mdp, status);
-
-	spin_unlock_irqrestore(&mdp_lock, irq_flags);
-	return IRQ_HANDLED;
-}
-
-static uint32_t mdp_check_mask(uint32_t mask)
-{
-	uint32_t ret;
-	unsigned long irq_flags;
-
-	spin_lock_irqsave(&mdp_lock, irq_flags);
-	ret = mdp_irq_mask & mask;
-	spin_unlock_irqrestore(&mdp_lock, irq_flags);
-	return ret;
-}
-
-static int mdp_wait(struct mdp_info *mdp, uint32_t mask, wait_queue_head_t *wq)
-{
-	int ret = 0;
-	unsigned long irq_flags;
-
-	wait_event_timeout(*wq, !mdp_check_mask(mask), HZ);
-
-	spin_lock_irqsave(&mdp_lock, irq_flags);
-	if (mdp_irq_mask & mask) {
-		locked_disable_mdp_irq(mdp, mask);
-		printk(KERN_WARNING "timeout waiting for mdp to complete %x\n",
-		       mask);
-		ret = -ETIMEDOUT;
-	}
-	spin_unlock_irqrestore(&mdp_lock, irq_flags);
-
-	return ret;
-}
-
-void mdp_dma_wait(struct mdp_device *mdp_dev)
-{
-#define MDP_MAX_TIMEOUTS 20
-	static int timeout_count;
-	struct mdp_info *mdp = container_of(mdp_dev, struct mdp_info, mdp_dev);
-
-	if (mdp_wait(mdp, DL0_DMA2_TERM_DONE, &mdp_dma2_waitqueue) == -ETIMEDOUT)
-		timeout_count++;
-	else
-		timeout_count = 0;
-
-	if (timeout_count > MDP_MAX_TIMEOUTS) {
-		printk(KERN_ERR "mdp: dma failed %d times, somethings wrong!\n",
-		       MDP_MAX_TIMEOUTS);
-		BUG();
-	}
-}
-
-static int mdp_ppp_wait(struct mdp_info *mdp)
-{
-	return mdp_wait(mdp, DL0_ROI_DONE, &mdp_ppp_waitqueue);
-}
-
-void mdp_dma_to_mddi(struct mdp_info *mdp, uint32_t addr, uint32_t stride,
-		     uint32_t width, uint32_t height, uint32_t x, uint32_t y,
-		     struct msmfb_callback *callback)
-{
-	uint32_t dma2_cfg;
-	uint16_t ld_param = 0; /* 0=PRIM, 1=SECD, 2=EXT */
-
-	if (enable_mdp_irq(mdp, DL0_DMA2_TERM_DONE)) {
-		printk(KERN_ERR "mdp_dma_to_mddi: busy\n");
-		return;
-	}
-
-	dma_callback = callback;
-
-	dma2_cfg = DMA_PACK_TIGHT |
-		DMA_PACK_ALIGN_LSB |
-		DMA_PACK_PATTERN_RGB |
-		DMA_OUT_SEL_AHB |
-		DMA_IBUF_NONCONTIGUOUS;
-
-	dma2_cfg |= DMA_IBUF_FORMAT_RGB565;
-
-	dma2_cfg |= DMA_OUT_SEL_MDDI;
-
-	dma2_cfg |= DMA_MDDI_DMAOUT_LCD_SEL_PRIMARY;
-
-	dma2_cfg |= DMA_DITHER_EN;
-
-	/* setup size, address, and stride */
-	mdp_writel(mdp, (height << 16) | (width),
-		   MDP_CMD_DEBUG_ACCESS_BASE + 0x0184);
-	mdp_writel(mdp, addr, MDP_CMD_DEBUG_ACCESS_BASE + 0x0188);
-	mdp_writel(mdp, stride, MDP_CMD_DEBUG_ACCESS_BASE + 0x018C);
-
-	/* 666 18BPP */
-	dma2_cfg |= DMA_DSTC0G_6BITS | DMA_DSTC1B_6BITS | DMA_DSTC2R_6BITS;
-
-	/* set y & x offset and MDDI transaction parameters */
-	mdp_writel(mdp, (y << 16) | (x), MDP_CMD_DEBUG_ACCESS_BASE + 0x0194);
-	mdp_writel(mdp, ld_param, MDP_CMD_DEBUG_ACCESS_BASE + 0x01a0);
-	mdp_writel(mdp, (MDDI_VDO_PACKET_DESC << 16) | MDDI_VDO_PACKET_PRIM,
-		   MDP_CMD_DEBUG_ACCESS_BASE + 0x01a4);
-
-	mdp_writel(mdp, dma2_cfg, MDP_CMD_DEBUG_ACCESS_BASE + 0x0180);
-
-	/* start DMA2 */
-	mdp_writel(mdp, 0, MDP_CMD_DEBUG_ACCESS_BASE + 0x0044);
-}
-
-void mdp_dma(struct mdp_device *mdp_dev, uint32_t addr, uint32_t stride,
-	     uint32_t width, uint32_t height, uint32_t x, uint32_t y,
-	     struct msmfb_callback *callback, int interface)
-{
-	struct mdp_info *mdp = container_of(mdp_dev, struct mdp_info, mdp_dev);
-
-	if (interface == MSM_MDDI_PMDH_INTERFACE) {
-		mdp_dma_to_mddi(mdp, addr, stride, width, height, x, y,
-				callback);
-	}
-}
-
-int get_img(struct mdp_img *img, struct fb_info *info,
-	    unsigned long *start, unsigned long *len,
-	    struct file **filep)
-{
-	int ret = 0;
-	struct fd f = fdget(img->memory_id);
-	if (f.file == NULL)
-		return -1;
-
-	if (MAJOR(file_inode(f.file)->i_rdev) == FB_MAJOR) {
-		*start = info->fix.smem_start;
-		*len = info->fix.smem_len;
-	} else
-		ret = -1;
-	fdput(f);
-
-	return ret;
-}
-
-void put_img(struct file *src_file, struct file *dst_file)
-{
-}
-
-int mdp_blit(struct mdp_device *mdp_dev, struct fb_info *fb,
-	     struct mdp_blit_req *req)
-{
-	int ret;
-	unsigned long src_start = 0, src_len = 0, dst_start = 0, dst_len = 0;
-	struct mdp_info *mdp = container_of(mdp_dev, struct mdp_info, mdp_dev);
-	struct file *src_file = 0, *dst_file = 0;
-
-	/* WORKAROUND FOR HARDWARE BUG IN BG TILE FETCH */
-	if (unlikely(req->src_rect.h == 0 ||
-		     req->src_rect.w == 0)) {
-		printk(KERN_ERR "mpd_ppp: src img of zero size!\n");
-		return -EINVAL;
-	}
-	if (unlikely(req->dst_rect.h == 0 ||
-		     req->dst_rect.w == 0))
-		return -EINVAL;
-
-	/* do this first so that if this fails, the caller can always
-	 * safely call put_img */
-	if (unlikely(get_img(&req->src, fb, &src_start, &src_len, &src_file))) {
-		printk(KERN_ERR "mpd_ppp: could not retrieve src image from "
-				"memory\n");
-		return -EINVAL;
-	}
-
-	if (unlikely(get_img(&req->dst, fb, &dst_start, &dst_len, &dst_file))) {
-		printk(KERN_ERR "mpd_ppp: could not retrieve dst image from "
-				"memory\n");
-		return -EINVAL;
-	}
-	mutex_lock(&mdp_mutex);
-
-	/* transp_masking unimplemented */
-	req->transp_mask = MDP_TRANSP_NOP;
-	if (unlikely((req->transp_mask != MDP_TRANSP_NOP ||
-		      req->alpha != MDP_ALPHA_NOP ||
-		      HAS_ALPHA(req->src.format)) &&
-		     (req->flags & MDP_ROT_90 &&
-		      req->dst_rect.w <= 16 && req->dst_rect.h >= 16))) {
-		int i;
-		unsigned int tiles = req->dst_rect.h / 16;
-		unsigned int remainder = req->dst_rect.h % 16;
-		req->src_rect.w = 16*req->src_rect.w / req->dst_rect.h;
-		req->dst_rect.h = 16;
-		for (i = 0; i < tiles; i++) {
-			enable_mdp_irq(mdp, DL0_ROI_DONE);
-			ret = mdp_ppp_blit(mdp, req, src_file, src_start,
-					   src_len, dst_file, dst_start,
-					   dst_len);
-			if (ret)
-				goto err_bad_blit;
-			ret = mdp_ppp_wait(mdp);
-			if (ret)
-				goto err_wait_failed;
-			req->dst_rect.y += 16;
-			req->src_rect.x += req->src_rect.w;
-		}
-		if (!remainder)
-			goto end;
-		req->src_rect.w = remainder*req->src_rect.w / req->dst_rect.h;
-		req->dst_rect.h = remainder;
-	}
-	enable_mdp_irq(mdp, DL0_ROI_DONE);
-	ret = mdp_ppp_blit(mdp, req, src_file, src_start, src_len, dst_file,
-			   dst_start,
-			   dst_len);
-	if (ret)
-		goto err_bad_blit;
-	ret = mdp_ppp_wait(mdp);
-	if (ret)
-		goto err_wait_failed;
-end:
-	put_img(src_file, dst_file);
-	mutex_unlock(&mdp_mutex);
-	return 0;
-err_bad_blit:
-	disable_mdp_irq(mdp, DL0_ROI_DONE);
-err_wait_failed:
-	put_img(src_file, dst_file);
-	mutex_unlock(&mdp_mutex);
-	return ret;
-}
-
-void mdp_set_grp_disp(struct mdp_device *mdp_dev, unsigned disp_id)
-{
-	struct mdp_info *mdp = container_of(mdp_dev, struct mdp_info, mdp_dev);
-
-	disp_id &= 0xf;
-	mdp_writel(mdp, disp_id, MDP_FULL_BYPASS_WORD43);
-}
-
-int register_mdp_client(struct class_interface *cint)
-{
-	if (!mdp_class) {
-		pr_err("mdp: no mdp_class when registering mdp client\n");
-		return -ENODEV;
-	}
-	cint->class = mdp_class;
-	return class_interface_register(cint);
-}
-
-#include "mdp_csc_table.h"
-#include "mdp_scale_tables.h"
-
-int mdp_probe(struct platform_device *pdev)
-{
-	struct resource *resource;
-	int ret;
-	int n;
-	struct mdp_info *mdp;
-
-	resource = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	if (!resource) {
-		pr_err("mdp: can not get mdp mem resource!\n");
-		return -ENOMEM;
-	}
-
-	mdp = kzalloc(sizeof(struct mdp_info), GFP_KERNEL);
-	if (!mdp)
-		return -ENOMEM;
-
-	mdp->irq = platform_get_irq(pdev, 0);
-	if (mdp->irq < 0) {
-		pr_err("mdp: can not get mdp irq\n");
-		ret = mdp->irq;
-		goto error_get_irq;
-	}
-
-	mdp->base = ioremap(resource->start, resource_size(resource));
-	if (mdp->base == 0) {
-		printk(KERN_ERR "msmfb: cannot allocate mdp regs!\n");
-		ret = -ENOMEM;
-		goto error_ioremap;
-	}
-
-	mdp->mdp_dev.dma = mdp_dma;
-	mdp->mdp_dev.dma_wait = mdp_dma_wait;
-	mdp->mdp_dev.blit = mdp_blit;
-	mdp->mdp_dev.set_grp_disp = mdp_set_grp_disp;
-
-	clk = clk_get(&pdev->dev, "mdp_clk");
-	if (IS_ERR(clk)) {
-		printk(KERN_INFO "mdp: failed to get mdp clk");
-		ret = PTR_ERR(clk);
-		goto error_get_clk;
-	}
-
-	ret = request_irq(mdp->irq, mdp_isr, 0, "msm_mdp", mdp);
-	if (ret)
-		goto error_request_irq;
-	disable_irq(mdp->irq);
-	mdp_irq_mask = 0;
-
-	/* debug interface write access */
-	mdp_writel(mdp, 1, 0x60);
-
-	mdp_writel(mdp, MDP_ANY_INTR_MASK, MDP_INTR_ENABLE);
-	mdp_writel(mdp, 1, MDP_EBI2_PORTMAP_MODE);
-
-	mdp_writel(mdp, 0, MDP_CMD_DEBUG_ACCESS_BASE + 0x01f8);
-	mdp_writel(mdp, 0, MDP_CMD_DEBUG_ACCESS_BASE + 0x01fc);
-
-	for (n = 0; n < ARRAY_SIZE(csc_table); n++)
-		mdp_writel(mdp, csc_table[n].val, csc_table[n].reg);
-
-	/* clear up unused fg/main registers */
-	/* comp.plane 2&3 ystride */
-	mdp_writel(mdp, 0, MDP_CMD_DEBUG_ACCESS_BASE + 0x0120);
-
-	/* unpacked pattern */
-	mdp_writel(mdp, 0, MDP_CMD_DEBUG_ACCESS_BASE + 0x012c);
-	mdp_writel(mdp, 0, MDP_CMD_DEBUG_ACCESS_BASE + 0x0130);
-	mdp_writel(mdp, 0, MDP_CMD_DEBUG_ACCESS_BASE + 0x0134);
-	mdp_writel(mdp, 0, MDP_CMD_DEBUG_ACCESS_BASE + 0x0158);
-	mdp_writel(mdp, 0, MDP_CMD_DEBUG_ACCESS_BASE + 0x015c);
-	mdp_writel(mdp, 0, MDP_CMD_DEBUG_ACCESS_BASE + 0x0160);
-	mdp_writel(mdp, 0, MDP_CMD_DEBUG_ACCESS_BASE + 0x0170);
-	mdp_writel(mdp, 0, MDP_CMD_DEBUG_ACCESS_BASE + 0x0174);
-	mdp_writel(mdp, 0, MDP_CMD_DEBUG_ACCESS_BASE + 0x017c);
-
-	/* comp.plane 2 & 3 */
-	mdp_writel(mdp, 0, MDP_CMD_DEBUG_ACCESS_BASE + 0x0114);
-	mdp_writel(mdp, 0, MDP_CMD_DEBUG_ACCESS_BASE + 0x0118);
-
-	/* clear unused bg registers */
-	mdp_writel(mdp, 0, MDP_CMD_DEBUG_ACCESS_BASE + 0x01c8);
-	mdp_writel(mdp, 0, MDP_CMD_DEBUG_ACCESS_BASE + 0x01d0);
-	mdp_writel(mdp, 0, MDP_CMD_DEBUG_ACCESS_BASE + 0x01dc);
-	mdp_writel(mdp, 0, MDP_CMD_DEBUG_ACCESS_BASE + 0x01e0);
-	mdp_writel(mdp, 0, MDP_CMD_DEBUG_ACCESS_BASE + 0x01e4);
-
-	for (n = 0; n < ARRAY_SIZE(mdp_upscale_table); n++)
-		mdp_writel(mdp, mdp_upscale_table[n].val,
-		       mdp_upscale_table[n].reg);
-
-	for (n = 0; n < 9; n++)
-		mdp_writel(mdp, mdp_default_ccs[n], 0x40440 + 4 * n);
-	mdp_writel(mdp, mdp_default_ccs[9], 0x40500 + 4 * 0);
-	mdp_writel(mdp, mdp_default_ccs[10], 0x40500 + 4 * 0);
-	mdp_writel(mdp, mdp_default_ccs[11], 0x40500 + 4 * 0);
-
-	/* register mdp device */
-	mdp->mdp_dev.dev.parent = &pdev->dev;
-	mdp->mdp_dev.dev.class = mdp_class;
-	dev_set_name(&mdp->mdp_dev.dev, "mdp%d", pdev->id);
-
-	/* if you can remove the platform device you'd have to implement
-	 * this:
-	mdp_dev.release = mdp_class; */
-
-	ret = device_register(&mdp->mdp_dev.dev);
-	if (ret)
-		goto error_device_register;
-	return 0;
-
-error_device_register:
-	free_irq(mdp->irq, mdp);
-error_request_irq:
-error_get_clk:
-	iounmap(mdp->base);
-error_get_irq:
-error_ioremap:
-	kfree(mdp);
-	return ret;
-}
-
-static struct platform_driver msm_mdp_driver = {
-	.probe = mdp_probe,
-	.driver = {.name = "msm_mdp"},
-};
-
-static int __init mdp_init(void)
-{
-	mdp_class = class_create(THIS_MODULE, "msm_mdp");
-	if (IS_ERR(mdp_class)) {
-		printk(KERN_ERR "Error creating mdp class\n");
-		return PTR_ERR(mdp_class);
-	}
-	return platform_driver_register(&msm_mdp_driver);
-}
-
-subsys_initcall(mdp_init);