From: Dave Airlie <airlied@xxxxxxxxxx> This doesn't completely close the kexec hole for all drivers, but it fixes it for some cases, by enabling PCI bus mastering later. Signed-off-by: Dave Airlie <airlied@xxxxxxxxxx> --- drivers/gpu/drm/radeon/evergreen.c | 2 ++ drivers/gpu/drm/radeon/ni.c | 2 ++ drivers/gpu/drm/radeon/r100.c | 10 ++++++++++ drivers/gpu/drm/radeon/r300.c | 5 +---- drivers/gpu/drm/radeon/r420.c | 4 ++-- drivers/gpu/drm/radeon/r600.c | 2 ++ drivers/gpu/drm/radeon/radeon_kms.c | 2 -- drivers/gpu/drm/radeon/rv770.c | 2 ++ 8 files changed, 21 insertions(+), 8 deletions(-) diff --git a/drivers/gpu/drm/radeon/evergreen.c b/drivers/gpu/drm/radeon/evergreen.c index 5d51035..bb01c04 100644 --- a/drivers/gpu/drm/radeon/evergreen.c +++ b/drivers/gpu/drm/radeon/evergreen.c @@ -3001,6 +3001,8 @@ static int evergreen_startup(struct radeon_device *rdev) /* enable pcie gen2 link */ evergreen_pcie_gen2_enable(rdev); + pci_set_master(rdev->pdev); + if (ASIC_IS_DCE5(rdev)) { if (!rdev->me_fw || !rdev->pfp_fw || !rdev->rlc_fw || !rdev->mc_fw) { r = ni_init_microcode(rdev); diff --git a/drivers/gpu/drm/radeon/ni.c b/drivers/gpu/drm/radeon/ni.c index 1d1047a..60b4b9b 100644 --- a/drivers/gpu/drm/radeon/ni.c +++ b/drivers/gpu/drm/radeon/ni.c @@ -1343,6 +1343,8 @@ static int cayman_startup(struct radeon_device *rdev) /* enable pcie gen2 link */ evergreen_pcie_gen2_enable(rdev); + pci_set_master(rdev->pdev); + if (!rdev->me_fw || !rdev->pfp_fw || !rdev->rlc_fw || !rdev->mc_fw) { r = ni_init_microcode(rdev); if (r) { diff --git a/drivers/gpu/drm/radeon/r100.c b/drivers/gpu/drm/radeon/r100.c index dcc5b3c..567924c 100644 --- a/drivers/gpu/drm/radeon/r100.c +++ b/drivers/gpu/drm/radeon/r100.c @@ -596,6 +596,16 @@ int r100_pci_gart_init(struct radeon_device *rdev) void r100_enable_bm(struct radeon_device *rdev) { uint32_t tmp; + + pci_set_master(rdev->pdev); + + if (rdev->family == CHIP_R300 || + rdev->family == CHIP_R350 || + rdev->family == CHIP_RV350 || + rdev->family == CHIP_R423 || + rdev->family == CHIP_RV410) + return; + /* Enable bus mastering */ tmp = RREG32(RADEON_BUS_CNTL) & ~RADEON_BUS_MASTER_DIS; WREG32(RADEON_BUS_CNTL, tmp); diff --git a/drivers/gpu/drm/radeon/r300.c b/drivers/gpu/drm/radeon/r300.c index 400b26d..b1c171f 100644 --- a/drivers/gpu/drm/radeon/r300.c +++ b/drivers/gpu/drm/radeon/r300.c @@ -1372,10 +1372,7 @@ static int r300_startup(struct radeon_device *rdev) return r; } - if (rdev->family == CHIP_R300 || - rdev->family == CHIP_R350 || - rdev->family == CHIP_RV350) - r100_enable_bm(rdev); + r100_enable_bm(rdev); if (rdev->flags & RADEON_IS_PCI) { r = r100_pci_gart_enable(rdev); diff --git a/drivers/gpu/drm/radeon/r420.c b/drivers/gpu/drm/radeon/r420.c index 417fab8..b9123d6 100644 --- a/drivers/gpu/drm/radeon/r420.c +++ b/drivers/gpu/drm/radeon/r420.c @@ -400,8 +400,8 @@ int r420_init(struct radeon_device *rdev) if (r) { return r; } - if (rdev->family == CHIP_R420) - r100_enable_bm(rdev); + + r100_enable_bm(rdev); if (rdev->flags & RADEON_IS_PCIE) { r = rv370_pcie_gart_init(rdev); diff --git a/drivers/gpu/drm/radeon/r600.c b/drivers/gpu/drm/radeon/r600.c index 936d107..36c9b86 100644 --- a/drivers/gpu/drm/radeon/r600.c +++ b/drivers/gpu/drm/radeon/r600.c @@ -2468,6 +2468,8 @@ int r600_startup(struct radeon_device *rdev) /* enable pcie gen2 link */ r600_pcie_gen2_enable(rdev); + pci_set_master(rdev->pdev); + if (!rdev->me_fw || !rdev->pfp_fw || !rdev->rlc_fw) { r = r600_init_microcode(rdev); if (r) { diff --git a/drivers/gpu/drm/radeon/radeon_kms.c b/drivers/gpu/drm/radeon/radeon_kms.c index 601b6bd..be2c122 100644 --- a/drivers/gpu/drm/radeon/radeon_kms.c +++ b/drivers/gpu/drm/radeon/radeon_kms.c @@ -57,8 +57,6 @@ int radeon_driver_load_kms(struct drm_device *dev, unsigned long flags) } dev->dev_private = (void *)rdev; - pci_set_master(dev->pdev); - /* update BUS flag */ if (drm_pci_device_is_agp(dev)) { flags |= RADEON_IS_AGP; diff --git a/drivers/gpu/drm/radeon/rv770.c b/drivers/gpu/drm/radeon/rv770.c index e4e2132..ac1b451 100644 --- a/drivers/gpu/drm/radeon/rv770.c +++ b/drivers/gpu/drm/radeon/rv770.c @@ -1043,6 +1043,8 @@ static int rv770_startup(struct radeon_device *rdev) /* enable pcie gen2 link */ rv770_pcie_gen2_enable(rdev); + pci_set_master(rdev->pdev); + if (!rdev->me_fw || !rdev->pfp_fw || !rdev->rlc_fw) { r = r600_init_microcode(rdev); if (r) { -- 1.7.7.3 _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/dri-devel