drm/radeon/kms: respect single crtc cards, only create one crtc. (v2)

Also add single crtc for RN50 chips.

changes in v2:
fix vblank init to respect single crtc flag
fix r100 mode bandwidth to respect single crtc flag

Signed-off-by: Dave Airlie <airlied@redhat.com>

diff --git a/drivers/gpu/drm/radeon/r100.c b/drivers/gpu/drm/radeon/r100.c
index 7bea923..5fe12c0 100644 (file)
--- a/drivers/gpu/drm/radeon/r100.c
+++ b/drivers/gpu/drm/radeon/r100.c
@@ -2135,9 +2135,11 @@ void r100_bandwidth_update(struct radeon_device *rdev)
                mode1 = &rdev->mode_info.crtcs[0]->base.mode;
                pixel_bytes1 = rdev->mode_info.crtcs[0]->base.fb->bits_per_pixel / 8;
        }
-       if (rdev->mode_info.crtcs[1]->base.enabled) {
-               mode2 = &rdev->mode_info.crtcs[1]->base.mode;
-               pixel_bytes2 = rdev->mode_info.crtcs[1]->base.fb->bits_per_pixel / 8;
+       if (!(rdev->flags & RADEON_SINGLE_CRTC)) {
+               if (rdev->mode_info.crtcs[1]->base.enabled) {
+                       mode2 = &rdev->mode_info.crtcs[1]->base.mode;
+                       pixel_bytes2 = rdev->mode_info.crtcs[1]->base.fb->bits_per_pixel / 8;
+               }
        }
 
        min_mem_eff.full = rfixed_const_8(0);

diff --git a/drivers/gpu/drm/radeon/radeon_display.c b/drivers/gpu/drm/radeon/radeon_display.c
index 5d8141b..44cfcfd 100644 (file)
--- a/drivers/gpu/drm/radeon/radeon_display.c
+++ b/drivers/gpu/drm/radeon/radeon_display.c
@@ -724,7 +724,11 @@ int radeon_modeset_init(struct radeon_device *rdev)
        if (ret) {
                return ret;
        }
-       /* allocate crtcs - TODO single crtc */
+
+       if (rdev->flags & RADEON_SINGLE_CRTC)
+               num_crtc = 1;
+
+       /* allocate crtcs */
        for (i = 0; i < num_crtc; i++) {
                radeon_crtc_init(rdev->ddev, i);
        }

diff --git a/drivers/gpu/drm/radeon/radeon_encoders.c b/drivers/gpu/drm/radeon/radeon_encoders.c
index 6216467..a65ab1a 100644 (file)
--- a/drivers/gpu/drm/radeon/radeon_encoders.c
+++ b/drivers/gpu/drm/radeon/radeon_encoders.c
@@ -1345,6 +1345,7 @@ radeon_atombios_set_dig_info(struct radeon_encoder *radeon_encoder)
 void
 radeon_add_atom_encoder(struct drm_device *dev, uint32_t encoder_id, uint32_t supported_device)
 {
+       struct radeon_device *rdev = dev->dev_private;
        struct drm_encoder *encoder;
        struct radeon_encoder *radeon_encoder;
 
@@ -1364,7 +1365,10 @@ radeon_add_atom_encoder(struct drm_device *dev, uint32_t encoder_id, uint32_t su
                return;
 
        encoder = &radeon_encoder->base;
-       encoder->possible_crtcs = 0x3;
+       if (rdev->flags & RADEON_SINGLE_CRTC)
+               encoder->possible_crtcs = 0x1;
+       else
+               encoder->possible_crtcs = 0x3;
        encoder->possible_clones = 0;
 
        radeon_encoder->enc_priv = NULL;

diff --cc drivers/gpu/drm/radeon/radeon_fb.c
Simple merge

diff --cc drivers/gpu/drm/radeon/radeon_irq_kms.c
Simple merge

diff --cc drivers/gpu/drm/radeon/radeon_legacy_encoders.c
Simple merge

diff --cc include/drm/drm_pciids.h
Simple merge