From e5fd91f1ef340da553f7a79da9540c3db711c937 Mon Sep 17 00:00:00 2001
From: André Fabian Silva Delgado <emulatorman@parabola.nu>
Date: Tue, 8 Sep 2015 01:01:14 -0300
Subject: Linux-libre 4.2-gnu

---
 drivers/video/fbdev/aty/aty128fb.c    | 36 ++++++-----------------------------
 drivers/video/fbdev/aty/radeon_base.c | 29 ++++++----------------------
 drivers/video/fbdev/aty/radeonfb.h    |  2 +-
 3 files changed, 13 insertions(+), 54 deletions(-)

(limited to 'drivers/video/fbdev/aty')

diff --git a/drivers/video/fbdev/aty/aty128fb.c b/drivers/video/fbdev/aty/aty128fb.c
index 0156954bf..c42ce2fdf 100644
--- a/drivers/video/fbdev/aty/aty128fb.c
+++ b/drivers/video/fbdev/aty/aty128fb.c
@@ -80,10 +80,6 @@
 #include <asm/btext.h>
 #endif /* CONFIG_BOOTX_TEXT */
 
-#ifdef CONFIG_MTRR
-#include <asm/mtrr.h>
-#endif
-
 #include <video/aty128.h>
 
 /* Debug flag */
@@ -399,10 +395,7 @@ static int default_cmode = CMODE_8;
 
 static int default_crt_on = 0;
 static int default_lcd_on = 1;
-
-#ifdef CONFIG_MTRR
 static bool mtrr = true;
-#endif
 
 #ifdef CONFIG_FB_ATY128_BACKLIGHT
 #ifdef CONFIG_PMAC_BACKLIGHT
@@ -456,9 +449,7 @@ struct aty128fb_par {
 	u32 vram_size;                      /* onboard video ram   */
 	int chip_gen;
 	const struct aty128_meminfo *mem;   /* onboard mem info    */
-#ifdef CONFIG_MTRR
-	struct { int vram; int vram_valid; } mtrr;
-#endif
+	int wc_cookie;
 	int blitter_may_be_busy;
 	int fifo_slots;                 /* free slots in FIFO (64 max) */
 
@@ -1725,12 +1716,10 @@ static int aty128fb_setup(char *options)
 #endif
 			continue;
 		}
-#ifdef CONFIG_MTRR
 		if(!strncmp(this_opt, "nomtrr", 6)) {
 			mtrr = 0;
 			continue;
 		}
-#endif
 #ifdef CONFIG_PPC_PMAC
 		/* vmode and cmode deprecated */
 		if (!strncmp(this_opt, "vmode:", 6)) {
@@ -2133,7 +2122,7 @@ static int aty128_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 	par->vram_size = aty_ld_le32(CNFG_MEMSIZE) & 0x03FFFFFF;
 
 	/* Virtualize the framebuffer */
-	info->screen_base = ioremap(fb_addr, par->vram_size);
+	info->screen_base = ioremap_wc(fb_addr, par->vram_size);
 	if (!info->screen_base)
 		goto err_unmap_out;
 
@@ -2170,15 +2159,9 @@ static int aty128_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 	if (!aty128_init(pdev, ent))
 		goto err_out;
 
-#ifdef CONFIG_MTRR
-	if (mtrr) {
-		par->mtrr.vram = mtrr_add(info->fix.smem_start,
-				par->vram_size, MTRR_TYPE_WRCOMB, 1);
-		par->mtrr.vram_valid = 1;
-		/* let there be speed */
-		printk(KERN_INFO "aty128fb: Rage128 MTRR set to ON\n");
-	}
-#endif /* CONFIG_MTRR */
+	if (mtrr)
+		par->wc_cookie = arch_phys_wc_add(info->fix.smem_start,
+						  par->vram_size);
 	return 0;
 
 err_out:
@@ -2212,11 +2195,7 @@ static void aty128_remove(struct pci_dev *pdev)
 	aty128_bl_exit(info->bl_dev);
 #endif
 
-#ifdef CONFIG_MTRR
-	if (par->mtrr.vram_valid)
-		mtrr_del(par->mtrr.vram, info->fix.smem_start,
-			 par->vram_size);
-#endif /* CONFIG_MTRR */
+	arch_phys_wc_del(par->wc_cookie);
 	iounmap(par->regbase);
 	iounmap(info->screen_base);
 
@@ -2625,8 +2604,5 @@ MODULE_DESCRIPTION("FBDev driver for ATI Rage128 / Pro cards");
 MODULE_LICENSE("GPL");
 module_param(mode_option, charp, 0);
 MODULE_PARM_DESC(mode_option, "Specify resolution as \"<xres>x<yres>[-<bpp>][@<refresh>]\" ");
-#ifdef CONFIG_MTRR
 module_param_named(nomtrr, mtrr, invbool, 0);
 MODULE_PARM_DESC(nomtrr, "bool: Disable MTRR support (0 or 1=disabled) (default=0)");
-#endif
-
diff --git a/drivers/video/fbdev/aty/radeon_base.c b/drivers/video/fbdev/aty/radeon_base.c
index 01237c8fc..2bdb07070 100644
--- a/drivers/video/fbdev/aty/radeon_base.c
+++ b/drivers/video/fbdev/aty/radeon_base.c
@@ -85,10 +85,6 @@
 
 #endif /* CONFIG_PPC */
 
-#ifdef CONFIG_MTRR
-#include <asm/mtrr.h>
-#endif
-
 #include <video/radeon.h>
 #include <linux/radeonfb.h>
 
@@ -271,9 +267,7 @@ static bool mirror = 0;
 static int panel_yres = 0;
 static bool force_dfp = 0;
 static bool force_measure_pll = 0;
-#ifdef CONFIG_MTRR
 static bool nomtrr = 0;
-#endif
 static bool force_sleep;
 static bool ignore_devlist;
 #ifdef CONFIG_PMAC_BACKLIGHT
@@ -2260,8 +2254,8 @@ static int radeonfb_pci_register(struct pci_dev *pdev,
 	rinfo->mapped_vram = min_t(unsigned long, MAX_MAPPED_VRAM, rinfo->video_ram);
 
 	do {
-		rinfo->fb_base = ioremap (rinfo->fb_base_phys,
-					  rinfo->mapped_vram);
+		rinfo->fb_base = ioremap_wc(rinfo->fb_base_phys,
+					    rinfo->mapped_vram);
 	} while (rinfo->fb_base == NULL &&
 		 ((rinfo->mapped_vram /= 2) >= MIN_MAPPED_VRAM));
 
@@ -2359,11 +2353,9 @@ static int radeonfb_pci_register(struct pci_dev *pdev,
 		goto err_unmap_fb;
 	}
 
-#ifdef CONFIG_MTRR
-	rinfo->mtrr_hdl = nomtrr ? -1 : mtrr_add(rinfo->fb_base_phys,
-						 rinfo->video_ram,
-						 MTRR_TYPE_WRCOMB, 1);
-#endif
+	if (!nomtrr)
+		rinfo->wc_cookie = arch_phys_wc_add(rinfo->fb_base_phys,
+						    rinfo->video_ram);
 
 	if (backlight)
 		radeonfb_bl_init(rinfo);
@@ -2428,12 +2420,7 @@ static void radeonfb_pci_unregister(struct pci_dev *pdev)
  #endif
 
 	del_timer_sync(&rinfo->lvds_timer);
-
-#ifdef CONFIG_MTRR
-	if (rinfo->mtrr_hdl >= 0)
-		mtrr_del(rinfo->mtrr_hdl, 0, 0);
-#endif
-
+	arch_phys_wc_del(rinfo->wc_cookie);
         unregister_framebuffer(info);
 
         radeonfb_bl_exit(rinfo);
@@ -2489,10 +2476,8 @@ static int __init radeonfb_setup (char *options)
 			panel_yres = simple_strtoul((this_opt+11), NULL, 0);
 		} else if (!strncmp(this_opt, "backlight:", 10)) {
 			backlight = simple_strtoul(this_opt+10, NULL, 0);
-#ifdef CONFIG_MTRR
 		} else if (!strncmp(this_opt, "nomtrr", 6)) {
 			nomtrr = 1;
-#endif
 		} else if (!strncmp(this_opt, "nomodeset", 9)) {
 			nomodeset = 1;
 		} else if (!strncmp(this_opt, "force_measure_pll", 17)) {
@@ -2552,10 +2537,8 @@ module_param(monitor_layout, charp, 0);
 MODULE_PARM_DESC(monitor_layout, "Specify monitor mapping (like XFree86)");
 module_param(force_measure_pll, bool, 0);
 MODULE_PARM_DESC(force_measure_pll, "Force measurement of PLL (debug)");
-#ifdef CONFIG_MTRR
 module_param(nomtrr, bool, 0);
 MODULE_PARM_DESC(nomtrr, "bool: disable use of MTRR registers");
-#endif
 module_param(panel_yres, int, 0);
 MODULE_PARM_DESC(panel_yres, "int: set panel yres");
 module_param(mode_option, charp, 0);
diff --git a/drivers/video/fbdev/aty/radeonfb.h b/drivers/video/fbdev/aty/radeonfb.h
index 039def41c..5bc1944ea 100644
--- a/drivers/video/fbdev/aty/radeonfb.h
+++ b/drivers/video/fbdev/aty/radeonfb.h
@@ -340,7 +340,7 @@ struct radeonfb_info {
 
 	struct pll_info		pll;
 
-	int			mtrr_hdl;
+	int			wc_cookie;
 
 	u32			save_regs[100];
 	int			asleep;
-- 
cgit v1.2.3-54-g00ecf