From fae7043c65d65f3e5b34bac4431c6ccc49190c41 Mon Sep 17 00:00:00 2001 From: Dave Airlie Date: Tue, 9 Dec 2008 15:30:50 +1000 Subject: drm/radeon: don't actually enable the IRQ regs until irq is enabled vblank can try and enable the IRQ registers before we've set the interrupt handler up. Signed-off-by: Dave Airlie --- drivers/gpu/drm/radeon/radeon_drv.h | 1 - drivers/gpu/drm/radeon/radeon_irq.c | 8 ++++---- 2 files changed, 4 insertions(+), 5 deletions(-) diff --git a/drivers/gpu/drm/radeon/radeon_drv.h b/drivers/gpu/drm/radeon/radeon_drv.h index 7a18378..3bbb871 100644 --- a/drivers/gpu/drm/radeon/radeon_drv.h +++ b/drivers/gpu/drm/radeon/radeon_drv.h @@ -299,7 +299,6 @@ typedef struct drm_radeon_private { atomic_t swi_emitted; int vblank_crtc; uint32_t irq_enable_reg; - int irq_enabled; uint32_t r500_disp_irq_reg; struct radeon_surface surfaces[RADEON_MAX_SURFACES]; diff --git a/drivers/gpu/drm/radeon/radeon_irq.c b/drivers/gpu/drm/radeon/radeon_irq.c index 97c0599..99be114 100644 --- a/drivers/gpu/drm/radeon/radeon_irq.c +++ b/drivers/gpu/drm/radeon/radeon_irq.c @@ -44,7 +44,8 @@ void radeon_irq_set_state(struct drm_device *dev, u32 mask, int state) else dev_priv->irq_enable_reg &= ~mask; - RADEON_WRITE(RADEON_GEN_INT_CNTL, dev_priv->irq_enable_reg); + if (!dev->irq_enabled) + RADEON_WRITE(RADEON_GEN_INT_CNTL, dev_priv->irq_enable_reg); } static void r500_vbl_irq_set_state(struct drm_device *dev, u32 mask, int state) @@ -56,7 +57,8 @@ static void r500_vbl_irq_set_state(struct drm_device *dev, u32 mask, int state) else dev_priv->r500_disp_irq_reg &= ~mask; - RADEON_WRITE(R500_DxMODE_INT_MASK, dev_priv->r500_disp_irq_reg); + if (!dev->irq_enabled) + RADEON_WRITE(R500_DxMODE_INT_MASK, dev_priv->r500_disp_irq_reg); } int radeon_enable_vblank(struct drm_device *dev, int crtc) @@ -355,8 +357,6 @@ void radeon_driver_irq_uninstall(struct drm_device * dev) if (!dev_priv) return; - dev_priv->irq_enabled = 0; - if ((dev_priv->flags & RADEON_FAMILY_MASK) >= CHIP_RS690) RADEON_WRITE(R500_DxMODE_INT_MASK, 0); /* Disable *all* interrupts */ -- cgit v1.1 From 15c35334c9b7a11f66ddf7fea9367884e1f5414f Mon Sep 17 00:00:00 2001 From: Owain Ainsworth Date: Sat, 6 Dec 2008 20:42:20 -0800 Subject: drm/i915: Don't return error in evict_everything when we get to the end. Returning -ENOMEM errored all the way out of execbuf, so the rendering never occurred. Signed-off-by: Dave Airlie --- drivers/gpu/drm/i915/i915_gem.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c index 3fde82b..ad672d8 100644 --- a/drivers/gpu/drm/i915/i915_gem.c +++ b/drivers/gpu/drm/i915/i915_gem.c @@ -1104,6 +1104,8 @@ i915_gem_evict_everything(struct drm_device *dev) if (ret != 0) break; } + if (ret == -ENOMEM) + return 0; return ret; } -- cgit v1.1 From b60678a75d44fa9d5969f79781bd856ad5858609 Mon Sep 17 00:00:00 2001 From: Keith Packard Date: Mon, 8 Dec 2008 11:12:28 -0800 Subject: drm/i915: Disable the GM965 MSI errata workaround. Since applying the fix suggested by the errata (disabling MSI), we've had issues with interrupts being stuck on despite IIR being 0 on GM965 hardware. Most reporters of the issue have confirmed that turning MSI back on fixes things, and given the difficulties experienced in getting reliable MSI working on Linux, it's believable that the errata was about software issues and not actual hardware issues. Signed-off-by: Dave Airlie --- drivers/gpu/drm/i915/i915_dma.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/i915/i915_dma.c b/drivers/gpu/drm/i915/i915_dma.c index ba89b42..553dd4b 100644 --- a/drivers/gpu/drm/i915/i915_dma.c +++ b/drivers/gpu/drm/i915/i915_dma.c @@ -847,9 +847,10 @@ int i915_driver_load(struct drm_device *dev, unsigned long flags) * and the registers being closely associated. * * According to chipset errata, on the 965GM, MSI interrupts may - * be lost or delayed + * be lost or delayed, but we use them anyways to avoid + * stuck interrupts on some machines. */ - if (!IS_I945G(dev) && !IS_I945GM(dev) && !IS_I965GM(dev)) + if (!IS_I945G(dev) && !IS_I945GM(dev)) pci_enable_msi(dev->pdev); intel_opregion_init(dev); -- cgit v1.1