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drm/vmwgfx: Support older hardware.

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V2: Fix a couple of typos.

Signed-off-by: Jakob Bornecrantz <jakob@vmware.com>
Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Jakob Bornecrantz
2010-05-28 11:21:59 +02:00
zatwierdzone przez Dave Airlie
rodzic 1ae1ddd5e9
commit d7e1958dbe
6 zmienionych plików z 148 dodań i 107 usunięć
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81
drivers/gpu/drm/vmwgfx/vmwgfx_fb.c
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@@ -132,16 +132,14 @@ static int vmw_fb_check_var(struct fb_var_screeninfo *var,
return -EINVAL;
}
/* without multimon its hard to resize */
if (!(vmw_priv->capabilities & SVGA_CAP_MULTIMON) &&
(var->xres != par->max_width ||
var->yres != par->max_height)) {
DRM_ERROR("Tried to resize, but we don't have multimon\n");
if (!(vmw_priv->capabilities & SVGA_CAP_DISPLAY_TOPOLOGY) &&
(var->xoffset != 0 || var->yoffset != 0)) {
DRM_ERROR("Can not handle panning without display topology\n");
return -EINVAL;
}
if (var->xres > par->max_width ||
var->yres > par->max_height) {
if ((var->xoffset + var->xres) > par->max_width ||
(var->yoffset + var->yres) > par->max_height) {
DRM_ERROR("Requested geom can not fit in framebuffer\n");
return -EINVAL;
}
@@ -154,8 +152,8 @@ static int vmw_fb_set_par(struct fb_info *info)
struct vmw_fb_par *par = info->par;
struct vmw_private *vmw_priv = par->vmw_priv;
if (vmw_priv->capabilities & SVGA_CAP_MULTIMON) {
vmw_write(vmw_priv, SVGA_REG_NUM_GUEST_DISPLAYS, 1);
if (vmw_priv->capabilities & SVGA_CAP_DISPLAY_TOPOLOGY) {
vmw_write(vmw_priv, SVGA_REG_ENABLE, 0);
vmw_write(vmw_priv, SVGA_REG_DISPLAY_ID, 0);
vmw_write(vmw_priv, SVGA_REG_DISPLAY_IS_PRIMARY, true);
vmw_write(vmw_priv, SVGA_REG_DISPLAY_POSITION_X, 0);
@@ -164,18 +162,11 @@ static int vmw_fb_set_par(struct fb_info *info)
vmw_write(vmw_priv, SVGA_REG_DISPLAY_HEIGHT, 0);
vmw_write(vmw_priv, SVGA_REG_DISPLAY_ID, SVGA_ID_INVALID);
vmw_write(vmw_priv, SVGA_REG_ENABLE, 1);
vmw_write(vmw_priv, SVGA_REG_WIDTH, par->max_width);
vmw_write(vmw_priv, SVGA_REG_HEIGHT, par->max_height);
vmw_write(vmw_priv, SVGA_REG_BITS_PER_PIXEL, par->bpp);
vmw_write(vmw_priv, SVGA_REG_DEPTH, par->depth);
vmw_write(vmw_priv, SVGA_REG_RED_MASK, 0x00ff0000);
vmw_write(vmw_priv, SVGA_REG_GREEN_MASK, 0x0000ff00);
vmw_write(vmw_priv, SVGA_REG_BLUE_MASK, 0x000000ff);
vmw_kms_write_svga(vmw_priv, info->var.xres, info->var.yres,
info->fix.line_length,
par->bpp, par->depth);
/* TODO check if pitch and offset changes */
vmw_write(vmw_priv, SVGA_REG_NUM_GUEST_DISPLAYS, 1);
vmw_write(vmw_priv, SVGA_REG_DISPLAY_ID, 0);
vmw_write(vmw_priv, SVGA_REG_DISPLAY_IS_PRIMARY, true);
vmw_write(vmw_priv, SVGA_REG_DISPLAY_POSITION_X, info->var.xoffset);
@@ -183,13 +174,22 @@ static int vmw_fb_set_par(struct fb_info *info)
vmw_write(vmw_priv, SVGA_REG_DISPLAY_WIDTH, info->var.xres);
vmw_write(vmw_priv, SVGA_REG_DISPLAY_HEIGHT, info->var.yres);
vmw_write(vmw_priv, SVGA_REG_DISPLAY_ID, SVGA_ID_INVALID);
vmw_write(vmw_priv, SVGA_REG_NUM_GUEST_DISPLAYS, 1);
vmw_write(vmw_priv, SVGA_REG_ENABLE, 1);
} else {
vmw_write(vmw_priv, SVGA_REG_WIDTH, info->var.xres);
vmw_write(vmw_priv, SVGA_REG_HEIGHT, info->var.yres);
vmw_write(vmw_priv, SVGA_REG_ENABLE, 0);
vmw_kms_write_svga(vmw_priv, info->var.xres, info->var.yres,
info->fix.line_length,
par->bpp, par->depth);
vmw_write(vmw_priv, SVGA_REG_ENABLE, 1);
/* TODO check if pitch and offset changes */
}
/* This is really helpful since if this fails the user
* can probably not see anything on the screen.
*/
WARN_ON(vmw_read(vmw_priv, SVGA_REG_FB_OFFSET) != 0);
return 0;
}
@@ -416,48 +416,23 @@ int vmw_fb_init(struct vmw_private *vmw_priv)
unsigned fb_bbp, fb_depth, fb_offset, fb_pitch, fb_size;
int ret;
/* XXX These shouldn't be hardcoded. */
initial_width = 800;
initial_height = 600;
fb_bbp = 32;
fb_depth = 24;
if (vmw_priv->capabilities & SVGA_CAP_MULTIMON) {
fb_width = min(vmw_priv->fb_max_width, (unsigned)2048);
fb_height = min(vmw_priv->fb_max_height, (unsigned)2048);
} else {
fb_width = min(vmw_priv->fb_max_width, initial_width);
fb_height = min(vmw_priv->fb_max_height, initial_height);
}
/* XXX As shouldn't these be as well. */
fb_width = min(vmw_priv->fb_max_width, (unsigned)2048);
fb_height = min(vmw_priv->fb_max_height, (unsigned)2048);
initial_width = min(fb_width, initial_width);
initial_height = min(fb_height, initial_height);
vmw_write(vmw_priv, SVGA_REG_WIDTH, fb_width);
vmw_write(vmw_priv, SVGA_REG_HEIGHT, fb_height);
vmw_write(vmw_priv, SVGA_REG_BITS_PER_PIXEL, fb_bbp);
vmw_write(vmw_priv, SVGA_REG_DEPTH, fb_depth);
vmw_write(vmw_priv, SVGA_REG_RED_MASK, 0x00ff0000);
vmw_write(vmw_priv, SVGA_REG_GREEN_MASK, 0x0000ff00);
vmw_write(vmw_priv, SVGA_REG_BLUE_MASK, 0x000000ff);
fb_size = vmw_read(vmw_priv, SVGA_REG_FB_SIZE);
fb_pitch = fb_width * fb_bbp / 8;
fb_size = fb_pitch * fb_height;
fb_offset = vmw_read(vmw_priv, SVGA_REG_FB_OFFSET);
fb_pitch = vmw_read(vmw_priv, SVGA_REG_BYTES_PER_LINE);
DRM_DEBUG("width %u\n", vmw_read(vmw_priv, SVGA_REG_MAX_WIDTH));
DRM_DEBUG("height %u\n", vmw_read(vmw_priv, SVGA_REG_MAX_HEIGHT));
DRM_DEBUG("width %u\n", vmw_read(vmw_priv, SVGA_REG_WIDTH));
DRM_DEBUG("height %u\n", vmw_read(vmw_priv, SVGA_REG_HEIGHT));
DRM_DEBUG("bpp %u\n", vmw_read(vmw_priv, SVGA_REG_BITS_PER_PIXEL));
DRM_DEBUG("depth %u\n", vmw_read(vmw_priv, SVGA_REG_DEPTH));
DRM_DEBUG("bpl %u\n", vmw_read(vmw_priv, SVGA_REG_BYTES_PER_LINE));
DRM_DEBUG("r mask %08x\n", vmw_read(vmw_priv, SVGA_REG_RED_MASK));
DRM_DEBUG("g mask %08x\n", vmw_read(vmw_priv, SVGA_REG_GREEN_MASK));
DRM_DEBUG("b mask %08x\n", vmw_read(vmw_priv, SVGA_REG_BLUE_MASK));
DRM_DEBUG("fb_offset 0x%08x\n", fb_offset);
DRM_DEBUG("fb_pitch %u\n", fb_pitch);
DRM_DEBUG("fb_size %u kiB\n", fb_size / 1024);
info = framebuffer_alloc(sizeof(*par), device);
if (!info)