diff options
Diffstat (limited to 'drivers/gpu/drm/mga/mga_dma.c')
-rw-r--r-- | drivers/gpu/drm/mga/mga_dma.c | 103 |
1 files changed, 45 insertions, 58 deletions
diff --git a/drivers/gpu/drm/mga/mga_dma.c b/drivers/gpu/drm/mga/mga_dma.c index 3c917fb3a60..08868ac3048 100644 --- a/drivers/gpu/drm/mga/mga_dma.c +++ b/drivers/gpu/drm/mga/mga_dma.c @@ -52,7 +52,7 @@ static int mga_do_cleanup_dma(struct drm_device *dev, int full_cleanup); * Engine control */ -int mga_do_wait_for_idle(drm_mga_private_t * dev_priv) +int mga_do_wait_for_idle(drm_mga_private_t *dev_priv) { u32 status = 0; int i; @@ -74,7 +74,7 @@ int mga_do_wait_for_idle(drm_mga_private_t * dev_priv) return -EBUSY; } -static int mga_do_dma_reset(drm_mga_private_t * dev_priv) +static int mga_do_dma_reset(drm_mga_private_t *dev_priv) { drm_mga_sarea_t *sarea_priv = dev_priv->sarea_priv; drm_mga_primary_buffer_t *primary = &dev_priv->prim; @@ -102,7 +102,7 @@ static int mga_do_dma_reset(drm_mga_private_t * dev_priv) * Primary DMA stream */ -void mga_do_dma_flush(drm_mga_private_t * dev_priv) +void mga_do_dma_flush(drm_mga_private_t *dev_priv) { drm_mga_primary_buffer_t *primary = &dev_priv->prim; u32 head, tail; @@ -142,11 +142,10 @@ void mga_do_dma_flush(drm_mga_private_t * dev_priv) head = MGA_READ(MGA_PRIMADDRESS); - if (head <= tail) { + if (head <= tail) primary->space = primary->size - primary->tail; - } else { + else primary->space = head - tail; - } DRM_DEBUG(" head = 0x%06lx\n", (unsigned long)(head - dev_priv->primary->offset)); DRM_DEBUG(" tail = 0x%06lx\n", (unsigned long)(tail - dev_priv->primary->offset)); @@ -158,7 +157,7 @@ void mga_do_dma_flush(drm_mga_private_t * dev_priv) DRM_DEBUG("done.\n"); } -void mga_do_dma_wrap_start(drm_mga_private_t * dev_priv) +void mga_do_dma_wrap_start(drm_mga_private_t *dev_priv) { drm_mga_primary_buffer_t *primary = &dev_priv->prim; u32 head, tail; @@ -181,11 +180,10 @@ void mga_do_dma_wrap_start(drm_mga_private_t * dev_priv) head = MGA_READ(MGA_PRIMADDRESS); - if (head == dev_priv->primary->offset) { + if (head == dev_priv->primary->offset) primary->space = primary->size; - } else { + else primary->space = head - dev_priv->primary->offset; - } DRM_DEBUG(" head = 0x%06lx\n", (unsigned long)(head - dev_priv->primary->offset)); DRM_DEBUG(" tail = 0x%06x\n", primary->tail); @@ -199,7 +197,7 @@ void mga_do_dma_wrap_start(drm_mga_private_t * dev_priv) DRM_DEBUG("done.\n"); } -void mga_do_dma_wrap_end(drm_mga_private_t * dev_priv) +void mga_do_dma_wrap_end(drm_mga_private_t *dev_priv) { drm_mga_primary_buffer_t *primary = &dev_priv->prim; drm_mga_sarea_t *sarea_priv = dev_priv->sarea_priv; @@ -220,11 +218,11 @@ void mga_do_dma_wrap_end(drm_mga_private_t * dev_priv) * Freelist management */ -#define MGA_BUFFER_USED ~0 +#define MGA_BUFFER_USED (~0) #define MGA_BUFFER_FREE 0 #if MGA_FREELIST_DEBUG -static void mga_freelist_print(struct drm_device * dev) +static void mga_freelist_print(struct drm_device *dev) { drm_mga_private_t *dev_priv = dev->dev_private; drm_mga_freelist_t *entry; @@ -245,7 +243,7 @@ static void mga_freelist_print(struct drm_device * dev) } #endif -static int mga_freelist_init(struct drm_device * dev, drm_mga_private_t * dev_priv) +static int mga_freelist_init(struct drm_device *dev, drm_mga_private_t *dev_priv) { struct drm_device_dma *dma = dev->dma; struct drm_buf *buf; @@ -288,7 +286,7 @@ static int mga_freelist_init(struct drm_device * dev, drm_mga_private_t * dev_pr return 0; } -static void mga_freelist_cleanup(struct drm_device * dev) +static void mga_freelist_cleanup(struct drm_device *dev) { drm_mga_private_t *dev_priv = dev->dev_private; drm_mga_freelist_t *entry; @@ -308,7 +306,7 @@ static void mga_freelist_cleanup(struct drm_device * dev) #if 0 /* FIXME: Still needed? */ -static void mga_freelist_reset(struct drm_device * dev) +static void mga_freelist_reset(struct drm_device *dev) { struct drm_device_dma *dma = dev->dma; struct drm_buf *buf; @@ -356,7 +354,7 @@ static struct drm_buf *mga_freelist_get(struct drm_device * dev) return NULL; } -int mga_freelist_put(struct drm_device * dev, struct drm_buf * buf) +int mga_freelist_put(struct drm_device *dev, struct drm_buf *buf) { drm_mga_private_t *dev_priv = dev->dev_private; drm_mga_buf_priv_t *buf_priv = buf->dev_private; @@ -391,7 +389,7 @@ int mga_freelist_put(struct drm_device * dev, struct drm_buf * buf) * DMA initialization, cleanup */ -int mga_driver_load(struct drm_device * dev, unsigned long flags) +int mga_driver_load(struct drm_device *dev, unsigned long flags) { drm_mga_private_t *dev_priv; int ret; @@ -405,8 +403,8 @@ int mga_driver_load(struct drm_device * dev, unsigned long flags) dev_priv->usec_timeout = MGA_DEFAULT_USEC_TIMEOUT; dev_priv->chipset = flags; - dev_priv->mmio_base = drm_get_resource_start(dev, 1); - dev_priv->mmio_size = drm_get_resource_len(dev, 1); + dev_priv->mmio_base = pci_resource_start(dev->pdev, 1); + dev_priv->mmio_size = pci_resource_len(dev->pdev, 1); dev->counters += 3; dev->types[6] = _DRM_STAT_IRQ; @@ -439,8 +437,8 @@ int mga_driver_load(struct drm_device * dev, unsigned long flags) * * \sa mga_do_dma_bootstrap, mga_do_pci_dma_bootstrap */ -static int mga_do_agp_dma_bootstrap(struct drm_device * dev, - drm_mga_dma_bootstrap_t * dma_bs) +static int mga_do_agp_dma_bootstrap(struct drm_device *dev, + drm_mga_dma_bootstrap_t *dma_bs) { drm_mga_private_t *const dev_priv = (drm_mga_private_t *) dev->dev_private; @@ -481,11 +479,10 @@ static int mga_do_agp_dma_bootstrap(struct drm_device * dev, */ if (dev_priv->chipset == MGA_CARD_TYPE_G200) { - if (mode.mode & 0x02) { + if (mode.mode & 0x02) MGA_WRITE(MGA_AGP_PLL, MGA_AGP2XPLL_ENABLE); - } else { + else MGA_WRITE(MGA_AGP_PLL, MGA_AGP2XPLL_DISABLE); - } } /* Allocate and bind AGP memory. */ @@ -593,8 +590,8 @@ static int mga_do_agp_dma_bootstrap(struct drm_device * dev, return 0; } #else -static int mga_do_agp_dma_bootstrap(struct drm_device * dev, - drm_mga_dma_bootstrap_t * dma_bs) +static int mga_do_agp_dma_bootstrap(struct drm_device *dev, + drm_mga_dma_bootstrap_t *dma_bs) { return -EINVAL; } @@ -614,8 +611,8 @@ static int mga_do_agp_dma_bootstrap(struct drm_device * dev, * * \sa mga_do_dma_bootstrap, mga_do_agp_dma_bootstrap */ -static int mga_do_pci_dma_bootstrap(struct drm_device * dev, - drm_mga_dma_bootstrap_t * dma_bs) +static int mga_do_pci_dma_bootstrap(struct drm_device *dev, + drm_mga_dma_bootstrap_t *dma_bs) { drm_mga_private_t *const dev_priv = (drm_mga_private_t *) dev->dev_private; @@ -678,9 +675,8 @@ static int mga_do_pci_dma_bootstrap(struct drm_device * dev, req.size = dma_bs->secondary_bin_size; err = drm_addbufs_pci(dev, &req); - if (!err) { + if (!err) break; - } } if (bin_count == 0) { @@ -704,8 +700,8 @@ static int mga_do_pci_dma_bootstrap(struct drm_device * dev, return 0; } -static int mga_do_dma_bootstrap(struct drm_device * dev, - drm_mga_dma_bootstrap_t * dma_bs) +static int mga_do_dma_bootstrap(struct drm_device *dev, + drm_mga_dma_bootstrap_t *dma_bs) { const int is_agp = (dma_bs->agp_mode != 0) && drm_device_is_agp(dev); int err; @@ -737,17 +733,15 @@ static int mga_do_dma_bootstrap(struct drm_device * dev, * carve off portions of it for internal uses. The remaining memory * is returned to user-mode to be used for AGP textures. */ - if (is_agp) { + if (is_agp) err = mga_do_agp_dma_bootstrap(dev, dma_bs); - } /* If we attempted to initialize the card for AGP DMA but failed, * clean-up any mess that may have been created. */ - if (err) { + if (err) mga_do_cleanup_dma(dev, MINIMAL_CLEANUP); - } /* Not only do we want to try and initialized PCI cards for PCI DMA, * but we also try to initialized AGP cards that could not be @@ -757,9 +751,8 @@ static int mga_do_dma_bootstrap(struct drm_device * dev, * AGP memory, etc. */ - if (!is_agp || err) { + if (!is_agp || err) err = mga_do_pci_dma_bootstrap(dev, dma_bs); - } return err; } @@ -792,7 +785,7 @@ int mga_dma_bootstrap(struct drm_device *dev, void *data, return err; } -static int mga_do_init_dma(struct drm_device * dev, drm_mga_init_t * init) +static int mga_do_init_dma(struct drm_device *dev, drm_mga_init_t *init) { drm_mga_private_t *dev_priv; int ret; @@ -800,11 +793,10 @@ static int mga_do_init_dma(struct drm_device * dev, drm_mga_init_t * init) dev_priv = dev->dev_private; - if (init->sgram) { + if (init->sgram) dev_priv->clear_cmd = MGA_DWGCTL_CLEAR | MGA_ATYPE_BLK; - } else { + else dev_priv->clear_cmd = MGA_DWGCTL_CLEAR | MGA_ATYPE_RSTR; - } dev_priv->maccess = init->maccess; dev_priv->fb_cpp = init->fb_cpp; @@ -975,9 +967,8 @@ static int mga_do_cleanup_dma(struct drm_device *dev, int full_cleanup) dev_priv->agp_handle = 0; } - if ((dev->agp != NULL) && dev->agp->acquired) { + if ((dev->agp != NULL) && dev->agp->acquired) err = drm_agp_release(dev); - } #endif } @@ -998,9 +989,8 @@ static int mga_do_cleanup_dma(struct drm_device *dev, int full_cleanup) memset(dev_priv->warp_pipe_phys, 0, sizeof(dev_priv->warp_pipe_phys)); - if (dev_priv->head != NULL) { + if (dev_priv->head != NULL) mga_freelist_cleanup(dev); - } } return err; @@ -1017,9 +1007,8 @@ int mga_dma_init(struct drm_device *dev, void *data, switch (init->func) { case MGA_INIT_DMA: err = mga_do_init_dma(dev, init); - if (err) { + if (err) (void)mga_do_cleanup_dma(dev, FULL_CLEANUP); - } return err; case MGA_CLEANUP_DMA: return mga_do_cleanup_dma(dev, FULL_CLEANUP); @@ -1047,9 +1036,8 @@ int mga_dma_flush(struct drm_device *dev, void *data, WRAP_WAIT_WITH_RETURN(dev_priv); - if (lock->flags & (_DRM_LOCK_FLUSH | _DRM_LOCK_FLUSH_ALL)) { + if (lock->flags & (_DRM_LOCK_FLUSH | _DRM_LOCK_FLUSH_ALL)) mga_do_dma_flush(dev_priv); - } if (lock->flags & _DRM_LOCK_QUIESCENT) { #if MGA_DMA_DEBUG @@ -1079,8 +1067,8 @@ int mga_dma_reset(struct drm_device *dev, void *data, * DMA buffer management */ -static int mga_dma_get_buffers(struct drm_device * dev, - struct drm_file *file_priv, struct drm_dma * d) +static int mga_dma_get_buffers(struct drm_device *dev, + struct drm_file *file_priv, struct drm_dma *d) { struct drm_buf *buf; int i; @@ -1134,9 +1122,8 @@ int mga_dma_buffers(struct drm_device *dev, void *data, d->granted_count = 0; - if (d->request_count) { + if (d->request_count) ret = mga_dma_get_buffers(dev, file_priv, d); - } return ret; } @@ -1144,7 +1131,7 @@ int mga_dma_buffers(struct drm_device *dev, void *data, /** * Called just before the module is unloaded. */ -int mga_driver_unload(struct drm_device * dev) +int mga_driver_unload(struct drm_device *dev) { kfree(dev->dev_private); dev->dev_private = NULL; @@ -1155,12 +1142,12 @@ int mga_driver_unload(struct drm_device * dev) /** * Called when the last opener of the device is closed. */ -void mga_driver_lastclose(struct drm_device * dev) +void mga_driver_lastclose(struct drm_device *dev) { mga_do_cleanup_dma(dev, FULL_CLEANUP); } -int mga_driver_dma_quiescent(struct drm_device * dev) +int mga_driver_dma_quiescent(struct drm_device *dev) { drm_mga_private_t *dev_priv = dev->dev_private; return mga_do_wait_for_idle(dev_priv); |