aboutsummaryrefslogtreecommitdiff
path: root/drivers/gpu/drm
diff options
context:
space:
mode:
authorDave Airlie <airlied@linux.ie>2009-09-16 10:15:21 +1000
committerDave Airlie <airlied@redhat.com>2009-09-18 16:01:53 +1000
commit41456df2d45299c2eea5aaabafbaa2430ab9a124 (patch)
treefad0d3958c9b1d2f9fdc0c919c9d137c47552438 /drivers/gpu/drm
parent65cb15a686cedab52abc336d7a400fe3a110ac4c (diff)
drm/radeon/kms: reprogram format in set base.
This should in theory fix the problem with a mode set being required for adjusting the color depth. This also adds in the necessary bits to the format tables for 8-bit, though it doesn't work yet. Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'drivers/gpu/drm')
-rw-r--r--drivers/gpu/drm/radeon/atombios_crtc.c5
-rw-r--r--drivers/gpu/drm/radeon/radeon_legacy_crtc.c41
2 files changed, 46 insertions, 0 deletions
diff --git a/drivers/gpu/drm/radeon/atombios_crtc.c b/drivers/gpu/drm/radeon/atombios_crtc.c
index a7edd0f2ac3..6a015929dee 100644
--- a/drivers/gpu/drm/radeon/atombios_crtc.c
+++ b/drivers/gpu/drm/radeon/atombios_crtc.c
@@ -488,6 +488,11 @@ int atombios_crtc_set_base(struct drm_crtc *crtc, int x, int y,
}
switch (crtc->fb->bits_per_pixel) {
+ case 8:
+ fb_format =
+ AVIVO_D1GRPH_CONTROL_DEPTH_8BPP |
+ AVIVO_D1GRPH_CONTROL_8BPP_INDEXED;
+ break;
case 15:
fb_format =
AVIVO_D1GRPH_CONTROL_DEPTH_16BPP |
diff --git a/drivers/gpu/drm/radeon/radeon_legacy_crtc.c b/drivers/gpu/drm/radeon/radeon_legacy_crtc.c
index 0d29d15aa62..2b997a15fb1 100644
--- a/drivers/gpu/drm/radeon/radeon_legacy_crtc.c
+++ b/drivers/gpu/drm/radeon/radeon_legacy_crtc.c
@@ -341,6 +341,9 @@ void radeon_legacy_atom_set_surface(struct drm_crtc *crtc)
uint32_t crtc_pitch;
switch (crtc->fb->bits_per_pixel) {
+ case 8:
+ format = 2;
+ break;
case 15: /* 555 */
format = 3;
break;
@@ -401,11 +404,33 @@ int radeon_crtc_set_base(struct drm_crtc *crtc, int x, int y,
uint32_t crtc_offset, crtc_offset_cntl, crtc_tile_x0_y0 = 0;
uint32_t crtc_pitch, pitch_pixels;
uint32_t tiling_flags;
+ int format;
+ uint32_t gen_cntl_reg, gen_cntl_val;
DRM_DEBUG("\n");
radeon_fb = to_radeon_framebuffer(crtc->fb);
+ switch (crtc->fb->bits_per_pixel) {
+ case 8:
+ format = 2;
+ break;
+ case 15: /* 555 */
+ format = 3;
+ break;
+ case 16: /* 565 */
+ format = 4;
+ break;
+ case 24: /* RGB */
+ format = 5;
+ break;
+ case 32: /* xRGB */
+ format = 6;
+ break;
+ default:
+ return false;
+ }
+
obj = radeon_fb->obj;
if (radeon_gem_object_pin(obj, RADEON_GEM_DOMAIN_VRAM, &base)) {
return -EINVAL;
@@ -458,6 +483,9 @@ int radeon_crtc_set_base(struct drm_crtc *crtc, int x, int y,
} else {
int offset = y * pitch_pixels + x;
switch (crtc->fb->bits_per_pixel) {
+ case 8:
+ offset *= 1;
+ break;
case 15:
case 16:
offset *= 2;
@@ -476,6 +504,16 @@ int radeon_crtc_set_base(struct drm_crtc *crtc, int x, int y,
base &= ~7;
+ if (radeon_crtc->crtc_id == 1)
+ gen_cntl_reg = RADEON_CRTC2_GEN_CNTL;
+ else
+ gen_cntl_reg = RADEON_CRTC_GEN_CNTL;
+
+ gen_cntl_val = RREG32(gen_cntl_reg);
+ gen_cntl_val &= ~(0xf << 8);
+ gen_cntl_val |= (format << 8);
+ WREG32(gen_cntl_reg, gen_cntl_val);
+
crtc_offset = (u32)base;
WREG32(RADEON_DISPLAY_BASE_ADDR + radeon_crtc->crtc_offset, radeon_crtc->legacy_display_base_addr);
@@ -526,6 +564,9 @@ static bool radeon_set_crtc_timing(struct drm_crtc *crtc, struct drm_display_mod
}
switch (crtc->fb->bits_per_pixel) {
+ case 8:
+ format = 2;
+ break;
case 15: /* 555 */
format = 3;
break;