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

[kvmfornfv.git] / kernel / drivers / video / fbdev / vt8623fb.c

diff --git a/kernel/drivers/video/fbdev/vt8623fb.c b/kernel/drivers/video/fbdev/vt8623fb.c
index ea7f056..dd0f18e 100644 (file)
--- a/kernel/drivers/video/fbdev/vt8623fb.c
+++ b/kernel/drivers/video/fbdev/vt8623fb.c
@@ -26,13 +26,9 @@
 #include <linux/console.h> /* Why should fb driver call console functions? because console_lock() */
 #include <video/vga.h>
 
-#ifdef CONFIG_MTRR
-#include <asm/mtrr.h>
-#endif
-
 struct vt8623fb_info {
        char __iomem *mmio_base;
-       int mtrr_reg;
+       int wc_cookie;
        struct vgastate state;
        struct mutex open_lock;
        unsigned int ref_count;
@@ -99,10 +95,7 @@ static struct svga_timing_regs vt8623_timing_regs     = {
 /* Module parameters */
 
 static char *mode_option = "640x480-8@60";
-
-#ifdef CONFIG_MTRR
 static int mtrr = 1;
-#endif
 
 MODULE_AUTHOR("(c) 2006 Ondrej Zajicek <santiago@crfreenet.org>");
 MODULE_LICENSE("GPL");
@@ -112,11 +105,8 @@ module_param(mode_option, charp, 0644);
 MODULE_PARM_DESC(mode_option, "Default video mode ('640x480-8@60', etc)");
 module_param_named(mode, mode_option, charp, 0);
 MODULE_PARM_DESC(mode, "Default video mode e.g. '648x480-8@60' (deprecated)");
-
-#ifdef CONFIG_MTRR
 module_param(mtrr, int, 0444);
 MODULE_PARM_DESC(mtrr, "Enable write-combining with MTRR (1=enable, 0=disable, default=1)");
-#endif
 
 
 /* ------------------------------------------------------------------------- */
@@ -710,7 +700,7 @@ static int vt8623_pci_probe(struct pci_dev *dev, const struct pci_device_id *id)
        info->fix.mmio_len = pci_resource_len(dev, 1);
 
        /* Map physical IO memory address into kernel space */
-       info->screen_base = pci_iomap(dev, 0, 0);
+       info->screen_base = pci_iomap_wc(dev, 0, 0);
        if (! info->screen_base) {
                rc = -ENOMEM;
                dev_err(info->device, "iomap for framebuffer failed\n");
@@ -754,9 +744,9 @@ static int vt8623_pci_probe(struct pci_dev *dev, const struct pci_device_id *id)
 
        /* Prepare startup mode */
 
-       kparam_block_sysfs_write(mode_option);
+       kernel_param_lock(THIS_MODULE);
        rc = fb_find_mode(&(info->var), info, mode_option, NULL, 0, NULL, 8);
-       kparam_unblock_sysfs_write(mode_option);
+       kernel_param_unlock(THIS_MODULE);
        if (! ((rc == 1) || (rc == 2))) {
                rc = -EINVAL;
                dev_err(info->device, "mode %s not found\n", mode_option);
@@ -781,12 +771,9 @@ static int vt8623_pci_probe(struct pci_dev *dev, const struct pci_device_id *id)
        /* Record a reference to the driver data */
        pci_set_drvdata(dev, info);
 
-#ifdef CONFIG_MTRR
-       if (mtrr) {
-               par->mtrr_reg = -1;
-               par->mtrr_reg = mtrr_add(info->fix.smem_start, info->fix.smem_len, MTRR_TYPE_WRCOMB, 1);
-       }
-#endif
+       if (mtrr)
+               par->wc_cookie = arch_phys_wc_add(info->fix.smem_start,
+                                                 info->fix.smem_len);
 
        return 0;
 
@@ -816,13 +803,7 @@ static void vt8623_pci_remove(struct pci_dev *dev)
        if (info) {
                struct vt8623fb_info *par = info->par;
 
-#ifdef CONFIG_MTRR
-               if (par->mtrr_reg >= 0) {
-                       mtrr_del(par->mtrr_reg, 0, 0);
-                       par->mtrr_reg = -1;
-               }
-#endif
-
+               arch_phys_wc_del(par->wc_cookie);
                unregister_framebuffer(info);
                fb_dealloc_cmap(&info->cmap);