/* if bios or OS sets MAX_READ_REQUEST_SIZE to an invalid value, fix it
* to avoid hangs or perfomance issues
*/
- if ((v == 0) || (v == 6) || (v == 7)) {
- ctl &= ~PCI_EXP_DEVCTL_READRQ;
- ctl |= (2 << 12);
- pcie_capability_write_word(rdev->pdev, PCI_EXP_DEVCTL, ctl);
- }
+ if ((v == 0) || (v == 6) || (v == 7))
+ pcie_set_readrq(rdev->pdev, 512);
}
+ void dce4_program_fmt(struct drm_encoder *encoder)
+ {
+ struct drm_device *dev = encoder->dev;
+ struct radeon_device *rdev = dev->dev_private;
+ struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
+ struct radeon_crtc *radeon_crtc = to_radeon_crtc(encoder->crtc);
+ struct drm_connector *connector = radeon_get_connector_for_encoder(encoder);
+ int bpc = 0;
+ u32 tmp = 0;
+ enum radeon_connector_dither dither = RADEON_FMT_DITHER_DISABLE;
+
+ if (connector) {
+ struct radeon_connector *radeon_connector = to_radeon_connector(connector);
+ bpc = radeon_get_monitor_bpc(connector);
+ dither = radeon_connector->dither;
+ }
+
+ /* LVDS/eDP FMT is set up by atom */
+ if (radeon_encoder->devices & ATOM_DEVICE_LCD_SUPPORT)
+ return;
+
+ /* not needed for analog */
+ if ((radeon_encoder->encoder_id == ENCODER_OBJECT_ID_INTERNAL_KLDSCP_DAC1) ||
+ (radeon_encoder->encoder_id == ENCODER_OBJECT_ID_INTERNAL_KLDSCP_DAC2))
+ return;
+
+ if (bpc == 0)
+ return;
+
+ switch (bpc) {
+ case 6:
+ if (dither == RADEON_FMT_DITHER_ENABLE)
+ /* XXX sort out optimal dither settings */
+ tmp |= (FMT_FRAME_RANDOM_ENABLE | FMT_HIGHPASS_RANDOM_ENABLE |
+ FMT_SPATIAL_DITHER_EN);
+ else
+ tmp |= FMT_TRUNCATE_EN;
+ break;
+ case 8:
+ if (dither == RADEON_FMT_DITHER_ENABLE)
+ /* XXX sort out optimal dither settings */
+ tmp |= (FMT_FRAME_RANDOM_ENABLE | FMT_HIGHPASS_RANDOM_ENABLE |
+ FMT_RGB_RANDOM_ENABLE |
+ FMT_SPATIAL_DITHER_EN | FMT_SPATIAL_DITHER_DEPTH);
+ else
+ tmp |= (FMT_TRUNCATE_EN | FMT_TRUNCATE_DEPTH);
+ break;
+ case 10:
+ default:
+ /* not needed */
+ break;
+ }
+
+ WREG32(FMT_BIT_DEPTH_CONTROL + radeon_crtc->crtc_offset, tmp);
+ }
+
static bool dce4_is_in_vblank(struct radeon_device *rdev, int crtc)
{
if (RREG32(EVERGREEN_CRTC_STATUS + crtc_offsets[crtc]) & EVERGREEN_CRTC_V_BLANK)