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| author | rnoland <rnoland@FreeBSD.org> | 2009-02-25 18:50:35 +0000 |
|---|---|---|
| committer | rnoland <rnoland@FreeBSD.org> | 2009-02-25 18:50:35 +0000 |
| commit | ede7b46946b333697d8d0a56b6db05c8f8084e41 (patch) | |
| tree | 4b72e0b3c651295af5a8a486e055805dc8920abf /sys/dev/drm/radeon_irq.c | |
| parent | 8df73af3285bafd710bb639277888b1aa47e343d (diff) | |
| download | FreeBSD-src-ede7b46946b333697d8d0a56b6db05c8f8084e41.zip FreeBSD-src-ede7b46946b333697d8d0a56b6db05c8f8084e41.tar.gz | |
Prepare the radeon driver for MSI support.
MFC after: 2 weeks
Diffstat (limited to 'sys/dev/drm/radeon_irq.c')
| -rw-r--r-- | sys/dev/drm/radeon_irq.c | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/sys/dev/drm/radeon_irq.c b/sys/dev/drm/radeon_irq.c index f0ce4bd..b6d03b2 100644 --- a/sys/dev/drm/radeon_irq.c +++ b/sys/dev/drm/radeon_irq.c @@ -192,6 +192,7 @@ irqreturn_t radeon_driver_irq_handler(DRM_IRQ_ARGS) (drm_radeon_private_t *) dev->dev_private; u32 stat; u32 r500_disp_int; + u32 tmp; /* Only consider the bits we're interested in - others could be used * outside the DRM @@ -218,6 +219,33 @@ irqreturn_t radeon_driver_irq_handler(DRM_IRQ_ARGS) if (stat & RADEON_CRTC2_VBLANK_STAT) drm_handle_vblank(dev, 1); } + if (dev->msi_enabled) { + switch(dev_priv->flags & RADEON_FAMILY_MASK) { + case CHIP_RS400: + case CHIP_RS480: + tmp = RADEON_READ(RADEON_AIC_CNTL) & + ~RS400_MSI_REARM; + RADEON_WRITE(RADEON_AIC_CNTL, tmp); + RADEON_WRITE(RADEON_AIC_CNTL, + tmp | RS400_MSI_REARM); + break; + case CHIP_RS690: + case CHIP_RS740: + tmp = RADEON_READ(RADEON_BUS_CNTL) & + ~RS600_MSI_REARM; + RADEON_WRITE(RADEON_BUS_CNTL, tmp); + RADEON_WRITE(RADEON_BUS_CNTL, tmp | + RS600_MSI_REARM); + break; + default: + tmp = RADEON_READ(RADEON_MSI_REARM_EN) & + ~RV370_MSI_REARM_EN; + RADEON_WRITE(RADEON_MSI_REARM_EN, tmp); + RADEON_WRITE(RADEON_MSI_REARM_EN, + tmp | RV370_MSI_REARM_EN); + break; + } + } return IRQ_HANDLED; } |
