From 24178ec42b0985d485886bc43b97e54ff173627e Mon Sep 17 00:00:00 2001 From: Alex Deucher Date: Thu, 24 Jan 2013 15:00:17 -0500 Subject: [PATCH] drm/radeon: don't reset the MC on IGPs/APUs The MC isn't part of the GPU per se. Signed-off-by: Alex Deucher --- drivers/gpu/drm/radeon/evergreen.c | 6 ++++-- drivers/gpu/drm/radeon/ni.c | 6 ++++-- drivers/gpu/drm/radeon/r600.c | 6 ++++-- 3 files changed, 12 insertions(+), 6 deletions(-) diff --git a/drivers/gpu/drm/radeon/evergreen.c b/drivers/gpu/drm/radeon/evergreen.c index 045955d5f337..2916de896a60 100644 --- a/drivers/gpu/drm/radeon/evergreen.c +++ b/drivers/gpu/drm/radeon/evergreen.c @@ -2500,8 +2500,10 @@ static void evergreen_gpu_soft_reset(struct radeon_device *rdev, u32 reset_mask) if (reset_mask & RADEON_RESET_VMC) srbm_soft_reset |= SOFT_RESET_VMC; - if (reset_mask & RADEON_RESET_MC) - srbm_soft_reset |= SOFT_RESET_MC; + if (!(rdev->flags & RADEON_IS_IGP)) { + if (reset_mask & RADEON_RESET_MC) + srbm_soft_reset |= SOFT_RESET_MC; + } if (grbm_soft_reset) { tmp = RREG32(GRBM_SOFT_RESET); diff --git a/drivers/gpu/drm/radeon/ni.c b/drivers/gpu/drm/radeon/ni.c index b6e80550ed90..170bd03d4dd8 100644 --- a/drivers/gpu/drm/radeon/ni.c +++ b/drivers/gpu/drm/radeon/ni.c @@ -1474,8 +1474,10 @@ static void cayman_gpu_soft_reset(struct radeon_device *rdev, u32 reset_mask) if (reset_mask & RADEON_RESET_VMC) srbm_soft_reset |= SOFT_RESET_VMC; - if (reset_mask & RADEON_RESET_MC) - srbm_soft_reset |= SOFT_RESET_MC; + if (!(rdev->flags & RADEON_IS_IGP)) { + if (reset_mask & RADEON_RESET_MC) + srbm_soft_reset |= SOFT_RESET_MC; + } if (grbm_soft_reset) { tmp = RREG32(GRBM_SOFT_RESET); diff --git a/drivers/gpu/drm/radeon/r600.c b/drivers/gpu/drm/radeon/r600.c index 3f292765aea8..dbcb0752f083 100644 --- a/drivers/gpu/drm/radeon/r600.c +++ b/drivers/gpu/drm/radeon/r600.c @@ -1475,8 +1475,10 @@ static void r600_gpu_soft_reset(struct radeon_device *rdev, u32 reset_mask) if (reset_mask & RADEON_RESET_GRBM) srbm_soft_reset |= S_000E60_SOFT_RESET_GRBM(1); - if (reset_mask & RADEON_RESET_MC) - srbm_soft_reset |= S_000E60_SOFT_RESET_MC(1); + if (!(rdev->flags & RADEON_IS_IGP)) { + if (reset_mask & RADEON_RESET_MC) + srbm_soft_reset |= S_000E60_SOFT_RESET_MC(1); + } if (reset_mask & RADEON_RESET_VMC) srbm_soft_reset |= S_000E60_SOFT_RESET_VMC(1); -- 2.20.1