diff options
| author | Robert Noland <rnoland@2hip.net> | 2009-02-24 12:28:42 -0600 |
|---|---|---|
| committer | Robert Noland <rnoland@2hip.net> | 2009-02-24 12:28:42 -0600 |
| commit | 68707804284438140413987849fee989b9fe4ba8 (patch) | |
| tree | 19c7eb0ce2c40ee110ee41e79f40fd60a381f5ae /shared-core | |
| parent | d45bc6667c6f10cbb3832178e4a6a8cdd036b739 (diff) | |
radeon: Prepare radeon for msi support.
Diffstat (limited to 'shared-core')
| -rw-r--r-- | shared-core/radeon_irq.c | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/shared-core/radeon_irq.c b/shared-core/radeon_irq.c index 836f384d..165e7bd2 100644 --- a/shared-core/radeon_irq.c +++ b/shared-core/radeon_irq.c @@ -189,6 +189,7 @@ 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 @@ -215,6 +216,33 @@ 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; } |