drm/radeon/kms: add initial Evergreen support (Radeon HD 5xxx)
This adds initial Evergreen KMS support, it doesn't include
any acceleration features or interrupt handling yet.
Major changes are DCE4 handling for PLLs for the > 2 crtcs.
Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
diff --git a/drivers/gpu/drm/radeon/radeon_display.c b/drivers/gpu/drm/radeon/radeon_display.c
index a41ed40..2578278 100644
--- a/drivers/gpu/drm/radeon/radeon_display.c
+++ b/drivers/gpu/drm/radeon/radeon_display.c
@@ -68,6 +68,36 @@
WREG32(AVIVO_D1GRPH_LUT_SEL + radeon_crtc->crtc_offset, radeon_crtc->crtc_id);
}
+static void evergreen_crtc_load_lut(struct drm_crtc *crtc)
+{
+ struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
+ struct drm_device *dev = crtc->dev;
+ struct radeon_device *rdev = dev->dev_private;
+ int i;
+
+ DRM_DEBUG("%d\n", radeon_crtc->crtc_id);
+ WREG32(EVERGREEN_DC_LUT_CONTROL + radeon_crtc->crtc_offset, 0);
+
+ WREG32(EVERGREEN_DC_LUT_BLACK_OFFSET_BLUE + radeon_crtc->crtc_offset, 0);
+ WREG32(EVERGREEN_DC_LUT_BLACK_OFFSET_GREEN + radeon_crtc->crtc_offset, 0);
+ WREG32(EVERGREEN_DC_LUT_BLACK_OFFSET_RED + radeon_crtc->crtc_offset, 0);
+
+ WREG32(EVERGREEN_DC_LUT_WHITE_OFFSET_BLUE + radeon_crtc->crtc_offset, 0xffff);
+ WREG32(EVERGREEN_DC_LUT_WHITE_OFFSET_GREEN + radeon_crtc->crtc_offset, 0xffff);
+ WREG32(EVERGREEN_DC_LUT_WHITE_OFFSET_RED + radeon_crtc->crtc_offset, 0xffff);
+
+ WREG32(EVERGREEN_DC_LUT_RW_MODE, radeon_crtc->crtc_id);
+ WREG32(EVERGREEN_DC_LUT_WRITE_EN_MASK, 0x00000007);
+
+ WREG32(EVERGREEN_DC_LUT_RW_INDEX, 0);
+ for (i = 0; i < 256; i++) {
+ WREG32(EVERGREEN_DC_LUT_30_COLOR,
+ (radeon_crtc->lut_r[i] << 20) |
+ (radeon_crtc->lut_g[i] << 10) |
+ (radeon_crtc->lut_b[i] << 0));
+ }
+}
+
static void legacy_crtc_load_lut(struct drm_crtc *crtc)
{
struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
@@ -100,7 +130,9 @@
if (!crtc->enabled)
return;
- if (ASIC_IS_AVIVO(rdev))
+ if (ASIC_IS_DCE4(rdev))
+ evergreen_crtc_load_lut(crtc);
+ else if (ASIC_IS_AVIVO(rdev))
avivo_crtc_load_lut(crtc);
else
legacy_crtc_load_lut(crtc);
@@ -862,8 +894,12 @@
if (rdev->flags & RADEON_SINGLE_CRTC)
rdev->num_crtc = 1;
- else
- rdev->num_crtc = 2;
+ else {
+ if (ASIC_IS_DCE4(rdev))
+ rdev->num_crtc = 6;
+ else
+ rdev->num_crtc = 2;
+ }
/* allocate crtcs */
for (i = 0; i < rdev->num_crtc; i++) {
