diff options
Diffstat (limited to 'drivers/gpu/drm/bochs/bochs_hw.c')
| -rw-r--r-- | drivers/gpu/drm/bochs/bochs_hw.c | 66 |
1 files changed, 51 insertions, 15 deletions
diff --git a/drivers/gpu/drm/bochs/bochs_hw.c b/drivers/gpu/drm/bochs/bochs_hw.c index a39b0343c197..cacff73a64ab 100644 --- a/drivers/gpu/drm/bochs/bochs_hw.c +++ b/drivers/gpu/drm/bochs/bochs_hw.c @@ -47,11 +47,33 @@ static void bochs_dispi_write(struct bochs_device *bochs, u16 reg, u16 val) } } -int bochs_hw_init(struct drm_device *dev, uint32_t flags) +static void bochs_hw_set_big_endian(struct bochs_device *bochs) +{ + if (bochs->qext_size < 8) + return; + + writel(0xbebebebe, bochs->mmio + 0x604); +} + +static void bochs_hw_set_little_endian(struct bochs_device *bochs) +{ + if (bochs->qext_size < 8) + return; + + writel(0x1e1e1e1e, bochs->mmio + 0x604); +} + +#ifdef __BIG_ENDIAN +#define bochs_hw_set_native_endian(_b) bochs_hw_set_big_endian(_b) +#else +#define bochs_hw_set_native_endian(_b) bochs_hw_set_little_endian(_b) +#endif + +int bochs_hw_init(struct drm_device *dev) { struct bochs_device *bochs = dev->dev_private; struct pci_dev *pdev = dev->pdev; - unsigned long addr, size, mem, ioaddr, iosize, qext_size; + unsigned long addr, size, mem, ioaddr, iosize; u16 id; if (pdev->resource[2].flags & IORESOURCE_MEM) { @@ -117,19 +139,14 @@ int bochs_hw_init(struct drm_device *dev, uint32_t flags) ioaddr); if (bochs->mmio && pdev->revision >= 2) { - qext_size = readl(bochs->mmio + 0x600); - if (qext_size < 4 || qext_size > iosize) + bochs->qext_size = readl(bochs->mmio + 0x600); + if (bochs->qext_size < 4 || bochs->qext_size > iosize) { + bochs->qext_size = 0; goto noext; - DRM_DEBUG("Found qemu ext regs, size %ld\n", qext_size); - if (qext_size >= 8) { -#ifdef __BIG_ENDIAN - writel(0xbebebebe, bochs->mmio + 0x604); -#else - writel(0x1e1e1e1e, bochs->mmio + 0x604); -#endif - DRM_DEBUG(" qext endian: 0x%x\n", - readl(bochs->mmio + 0x604)); } + DRM_DEBUG("Found qemu ext regs, size %ld\n", + bochs->qext_size); + bochs_hw_set_native_endian(bochs); } noext: @@ -150,7 +167,8 @@ void bochs_hw_fini(struct drm_device *dev) } void bochs_hw_setmode(struct bochs_device *bochs, - struct drm_display_mode *mode) + struct drm_display_mode *mode, + const struct drm_format_info *format) { bochs->xres = mode->hdisplay; bochs->yres = mode->vdisplay; @@ -158,8 +176,12 @@ void bochs_hw_setmode(struct bochs_device *bochs, bochs->stride = mode->hdisplay * (bochs->bpp / 8); bochs->yres_virtual = bochs->fb_size / bochs->stride; - DRM_DEBUG_DRIVER("%dx%d @ %d bpp, vy %d\n", + DRM_DEBUG_DRIVER("%dx%d @ %d bpp, format %c%c%c%c, vy %d\n", bochs->xres, bochs->yres, bochs->bpp, + (format->format >> 0) & 0xff, + (format->format >> 8) & 0xff, + (format->format >> 16) & 0xff, + (format->format >> 24) & 0xff, bochs->yres_virtual); bochs_vga_writeb(bochs, 0x3c0, 0x20); /* unblank */ @@ -177,6 +199,20 @@ void bochs_hw_setmode(struct bochs_device *bochs, bochs_dispi_write(bochs, VBE_DISPI_INDEX_ENABLE, VBE_DISPI_ENABLED | VBE_DISPI_LFB_ENABLED); + + switch (format->format) { + case DRM_FORMAT_XRGB8888: + bochs_hw_set_little_endian(bochs); + break; + case DRM_FORMAT_BGRX8888: + bochs_hw_set_big_endian(bochs); + break; + default: + /* should not happen */ + DRM_ERROR("%s: Huh? Got framebuffer format 0x%x", + __func__, format->format); + break; + }; } void bochs_hw_setbase(struct bochs_device *bochs, |
