diff options
| author | Patrik Jakobsson <patrik.r.jakobsson@gmail.com> | 2014-01-04 22:11:17 +0100 |
|---|---|---|
| committer | Patrik Jakobsson <patrik.r.jakobsson@gmail.com> | 2014-03-17 20:11:53 +0100 |
| commit | ae012bdc5799aafe88798f864bc05e90778229af (patch) | |
| tree | f0b8360d13c718d2f3180e6d1c516405c25c4812 /drivers/gpu/drm/gma500/psb_drv.c | |
| parent | 1c6b5d17d6ed124afd55027a72d64b6f6eca501e (diff) | |
drm/gma500: Hook up the MMU
Properly init the MMU and add MMU entries when adding GTT entries
Signed-off-by: Patrik Jakobsson <patrik.r.jakobsson@gmail.com>
Diffstat (limited to 'drivers/gpu/drm/gma500/psb_drv.c')
| -rw-r--r-- | drivers/gpu/drm/gma500/psb_drv.c | 27 |
1 files changed, 22 insertions, 5 deletions
diff --git a/drivers/gpu/drm/gma500/psb_drv.c b/drivers/gpu/drm/gma500/psb_drv.c index 55eef4d6cef8..89804fddb852 100644 --- a/drivers/gpu/drm/gma500/psb_drv.c +++ b/drivers/gpu/drm/gma500/psb_drv.c @@ -192,12 +192,18 @@ static int psb_do_init(struct drm_device *dev) PSB_WSGX32(0x00000000, PSB_CR_BIF_BANK0); PSB_WSGX32(0x00000000, PSB_CR_BIF_BANK1); PSB_RSGX32(PSB_CR_BIF_BANK1); - PSB_WSGX32(PSB_RSGX32(PSB_CR_BIF_CTRL) | _PSB_MMU_ER_MASK, - PSB_CR_BIF_CTRL); + + /* Do not bypass any MMU access, let them pagefault instead */ + PSB_WSGX32((PSB_RSGX32(PSB_CR_BIF_CTRL) & ~_PSB_MMU_ER_MASK), + PSB_CR_BIF_CTRL); + PSB_RSGX32(PSB_CR_BIF_CTRL); + psb_spank(dev_priv); /* mmu_gatt ?? */ PSB_WSGX32(pg->gatt_start, PSB_CR_BIF_TWOD_REQ_BASE); + PSB_RSGX32(PSB_CR_BIF_TWOD_REQ_BASE); /* Post */ + return 0; out_err: return ret; @@ -277,6 +283,7 @@ static int psb_driver_load(struct drm_device *dev, unsigned long chipset) int ret = -ENOMEM; struct drm_connector *connector; struct gma_encoder *gma_encoder; + struct psb_gtt *pg; dev_priv = kzalloc(sizeof(*dev_priv), GFP_KERNEL); if (dev_priv == NULL) @@ -286,6 +293,8 @@ static int psb_driver_load(struct drm_device *dev, unsigned long chipset) dev_priv->dev = dev; dev->dev_private = (void *) dev_priv; + pg = &dev_priv->gtt; + pci_set_master(dev->pdev); dev_priv->num_pipe = dev_priv->ops->pipes; @@ -355,13 +364,21 @@ static int psb_driver_load(struct drm_device *dev, unsigned long chipset) if (!dev_priv->pf_pd) goto out_err; - psb_mmu_set_pd_context(psb_mmu_get_default_pd(dev_priv->mmu), 0); - psb_mmu_set_pd_context(dev_priv->pf_pd, 1); - ret = psb_do_init(dev); if (ret) return ret; + /* Add stolen memory to SGX MMU */ + down_read(&pg->sem); + ret = psb_mmu_insert_pfn_sequence(psb_mmu_get_default_pd(dev_priv->mmu), + dev_priv->stolen_base >> PAGE_SHIFT, + pg->gatt_start, + pg->stolen_size >> PAGE_SHIFT, 0); + up_read(&pg->sem); + + psb_mmu_set_pd_context(psb_mmu_get_default_pd(dev_priv->mmu), 0); + psb_mmu_set_pd_context(dev_priv->pf_pd, 1); + PSB_WSGX32(0x20000000, PSB_CR_PDS_EXEC_BASE); PSB_WSGX32(0x30000000, PSB_CR_BIF_3D_REQ_BASE); |