drm/nv17-nv40: Fix modesetting failure when pitch == 4096px (fdo bug 35901).

Reported-by: Mario Bachmann <grafgrimm77@gmx.de>
Tested-by: Greg Turner <gmturner007@ameritech.net>
Signed-off-by: Francisco Jerez <currojerez@riseup.net>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

diff --git a/drivers/gpu/drm/nouveau/nouveau_hw.c b/drivers/gpu/drm/nouveau/nouveau_hw.c
index 053edf9..ba896e5 100644 (file)
--- a/drivers/gpu/drm/nouveau/nouveau_hw.c
+++ b/drivers/gpu/drm/nouveau/nouveau_hw.c
@@ -900,6 +900,7 @@ nv_save_state_ext(struct drm_device *dev, int head,
        }
        /* NV11 and NV20 don't have this, they stop at 0x52. */
        if (nv_gf4_disp_arch(dev)) {
+               rd_cio_state(dev, head, regp, NV_CIO_CRE_42);
                rd_cio_state(dev, head, regp, NV_CIO_CRE_53);
                rd_cio_state(dev, head, regp, NV_CIO_CRE_54);
 
@@ -1003,6 +1004,7 @@ nv_load_state_ext(struct drm_device *dev, int head,
                        nouveau_wait_eq(dev, 650000000, NV_PRMCIO_INP0__COLOR, 0x8, 0x0);
                }
 
+               wr_cio_state(dev, head, regp, NV_CIO_CRE_42);
                wr_cio_state(dev, head, regp, NV_CIO_CRE_53);
                wr_cio_state(dev, head, regp, NV_CIO_CRE_54);
 

diff --git a/drivers/gpu/drm/nouveau/nv04_crtc.c b/drivers/gpu/drm/nouveau/nv04_crtc.c
index 3c78bc8..f1a3ae4 100644 (file)
--- a/drivers/gpu/drm/nouveau/nv04_crtc.c
+++ b/drivers/gpu/drm/nouveau/nv04_crtc.c
@@ -376,7 +376,10 @@ nv_crtc_mode_set_vga(struct drm_crtc *crtc, struct drm_display_mode *mode)
         */
 
        /* framebuffer can be larger than crtc scanout area. */
-       regp->CRTC[NV_CIO_CRE_RPC0_INDEX] = XLATE(fb->pitch / 8, 8, NV_CIO_CRE_RPC0_OFFSET_10_8);
+       regp->CRTC[NV_CIO_CRE_RPC0_INDEX] =
+               XLATE(fb->pitch / 8, 8, NV_CIO_CRE_RPC0_OFFSET_10_8);
+       regp->CRTC[NV_CIO_CRE_42] =
+               XLATE(fb->pitch / 8, 11, NV_CIO_CRE_42_OFFSET_11);
        regp->CRTC[NV_CIO_CRE_RPC1_INDEX] = mode->crtc_hdisplay < 1280 ?
                                            MASK(NV_CIO_CRE_RPC1_LARGE) : 0x00;
        regp->CRTC[NV_CIO_CRE_LSR_INDEX] = XLATE(horizBlankEnd, 6, NV_CIO_CRE_LSR_HBE_6) |
@@ -824,8 +827,11 @@ nv04_crtc_do_mode_set_base(struct drm_crtc *crtc,
        regp->CRTC[NV_CIO_CR_OFFSET_INDEX] = drm_fb->pitch >> 3;
        regp->CRTC[NV_CIO_CRE_RPC0_INDEX] =
                XLATE(drm_fb->pitch >> 3, 8, NV_CIO_CRE_RPC0_OFFSET_10_8);
+       regp->CRTC[NV_CIO_CRE_42] =
+               XLATE(drm_fb->pitch / 8, 11, NV_CIO_CRE_42_OFFSET_11);
        crtc_wr_cio_state(crtc, regp, NV_CIO_CRE_RPC0_INDEX);
        crtc_wr_cio_state(crtc, regp, NV_CIO_CR_OFFSET_INDEX);
+       crtc_wr_cio_state(crtc, regp, NV_CIO_CRE_42);
 
        /* Update the framebuffer location. */
        regp->fb_start = nv_crtc->fb.offset & ~3;

diff --git a/drivers/gpu/drm/nouveau/nvreg.h b/drivers/gpu/drm/nouveau/nvreg.h
index fe0f253..bbfb1a6 100644 (file)
--- a/drivers/gpu/drm/nouveau/nvreg.h
+++ b/drivers/gpu/drm/nouveau/nvreg.h
@@ -277,6 +277,8 @@
 #              define NV_CIO_CRE_EBR_VDE_11            2:2
 #              define NV_CIO_CRE_EBR_VRS_11            4:4
 #              define NV_CIO_CRE_EBR_VBS_11            6:6
+#      define NV_CIO_CRE_42                    0x42
+#              define NV_CIO_CRE_42_OFFSET_11          6:6
 #      define NV_CIO_CRE_43                    0x43
 #      define NV_CIO_CRE_44                    0x44    /* head control */
 #      define NV_CIO_CRE_CSB                   0x45    /* colour saturation boost */