diff options
| -rw-r--r-- | linux-core/Makefile.kernel | 2 | ||||
| -rw-r--r-- | linux-core/i915_drv.c | 11 | ||||
| -rw-r--r-- | linux-core/i915_fence.c | 121 | ||||
| -rw-r--r-- | shared-core/i915_dma.c | 10 | ||||
| -rw-r--r-- | shared-core/i915_drv.h | 27 | ||||
| -rw-r--r-- | shared-core/i915_irq.c | 10 |
6 files changed, 170 insertions, 11 deletions
diff --git a/linux-core/Makefile.kernel b/linux-core/Makefile.kernel index 3c31b013..c5ce6638 100644 --- a/linux-core/Makefile.kernel +++ b/linux-core/Makefile.kernel @@ -19,7 +19,7 @@ r128-objs := r128_drv.o r128_cce.o r128_state.o r128_irq.o mga-objs := mga_drv.o mga_dma.o mga_state.o mga_warp.o mga_irq.o i810-objs := i810_drv.o i810_dma.o i830-objs := i830_drv.o i830_dma.o i830_irq.o -i915-objs := i915_drv.o i915_dma.o i915_irq.o i915_mem.o +i915-objs := i915_drv.o i915_dma.o i915_irq.o i915_mem.o i915_fence.o radeon-objs := radeon_drv.o radeon_cp.o radeon_state.o radeon_mem.o radeon_irq.o r300_cmdbuf.o sis-objs := sis_drv.o sis_mm.o ffb-objs := ffb_drv.o ffb_context.o diff --git a/linux-core/i915_drv.c b/linux-core/i915_drv.c index c6e25f9b..d1b8d2d2 100644 --- a/linux-core/i915_drv.c +++ b/linux-core/i915_drv.c @@ -38,6 +38,16 @@ static struct pci_device_id pciidlist[] = { i915_PCI_IDS }; +static drm_fence_driver_t i915_fence_driver = { + .no_types = 2, + .wrap_diff = (1 << 30), + .flush_diff = 200, + .sequence_mask = 0xffffffffU, + .lazy_capable = 1, + .emit = i915_fence_emit_sequence, + .poke_flush = i915_poke_flush, +}; + static int probe(struct pci_dev *pdev, const struct pci_device_id *ent); static struct drm_driver driver = { /* don't use mtrr's here, the Xserver or user space app should @@ -78,6 +88,7 @@ static struct drm_driver driver = { .remove = __devexit_p(drm_cleanup_pci), }, + .fence_driver = &i915_fence_driver, .name = DRIVER_NAME, .desc = DRIVER_DESC, .date = DRIVER_DATE, diff --git a/linux-core/i915_fence.c b/linux-core/i915_fence.c new file mode 100644 index 00000000..46a2a728 --- /dev/null +++ b/linux-core/i915_fence.c @@ -0,0 +1,121 @@ +/************************************************************************** + * + * Copyright 2006 Tungsten Graphics, Inc., Bismarck, ND., USA + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sub license, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL + * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, + * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR + * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE + * USE OR OTHER DEALINGS IN THE SOFTWARE. + * + * The above copyright notice and this permission notice (including the + * next paragraph) shall be included in all copies or substantial portions + * of the Software. + * + * + **************************************************************************/ +/* + * Authors: Thomas Hellström <thomas-at-tungstengraphics-dot-com> + */ + +#include "drmP.h" +#include "drm.h" +#include "i915_drm.h" +#include "i915_drv.h" + +/* + * Implements an intel sync flush operation. + */ + +static void i915_perform_flush(drm_device_t * dev) +{ + drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private; + drm_fence_manager_t *fm = &dev->fm; + drm_fence_driver_t *driver = dev->driver->fence_driver; + int flush_completed = 0; + uint32_t flush_flags = 0; + uint32_t flush_sequence = 0; + uint32_t i_status; + uint32_t diff; + uint32_t sequence; + + if (fm->pending_exe_flush) { + sequence = READ_BREADCRUMB(dev_priv); + diff = sequence - fm->last_exe_flush; + if (diff < driver->wrap_diff && diff != 0) { + drm_fence_handler(dev, sequence, DRM_FENCE_EXE); + diff = sequence - fm->exe_flush_sequence; + if (diff < driver->wrap_diff) { + fm->pending_exe_flush = 0; + /* + * Turn off user IRQs + */ + } else { + /* + * Turn on user IRQs + */ + } + } + } + if (dev_priv->flush_pending) { + i_status = READ_HWSP(dev_priv, 0); + if ((i_status & (1 << 12)) != + (dev_priv->saved_flush_status & (1 << 12))) { + flush_completed = 1; + flush_flags = dev_priv->flush_flags; + flush_sequence = dev_priv->flush_sequence; + dev_priv->flush_pending = 0; + } else { + } + } + if (flush_completed) { + drm_fence_handler(dev, flush_sequence, flush_flags); + } + if (fm->pending_flush && !dev_priv->flush_pending) { + dev_priv->flush_sequence = (uint32_t) READ_BREADCRUMB(dev_priv); + dev_priv->flush_flags = fm->pending_flush; + dev_priv->saved_flush_status = READ_HWSP(dev_priv, 0); + I915_WRITE(I915REG_INSTPM, (1 << 5) | (1 << 21)); + dev_priv->flush_pending = 1; + fm->pending_flush = 0; + } +} + +void i915_poke_flush(drm_device_t * dev) +{ + drm_fence_manager_t *fm = &dev->fm; + unsigned long flags; + + write_lock_irqsave(&fm->lock, flags); + i915_perform_flush(dev); + write_unlock_irqrestore(&fm->lock, flags); +} + +int i915_fence_emit_sequence(drm_device_t * dev, uint32_t * sequence) +{ + drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private; + i915_emit_irq(dev); + *sequence = (uint32_t) dev_priv->counter; + return 0; +} + +void i915_fence_handler(drm_device_t * dev) +{ + drm_fence_manager_t *fm = &dev->fm; + + write_lock(&fm->lock); + i915_perform_flush(dev); + i915_perform_flush(dev); + write_unlock(&fm->lock); +} diff --git a/shared-core/i915_dma.c b/shared-core/i915_dma.c index ba8c56ee..d6bb6c8e 100644 --- a/shared-core/i915_dma.c +++ b/shared-core/i915_dma.c @@ -434,15 +434,15 @@ static void i915_emit_breadcrumb(drm_device_t *dev) dev_priv->sarea_priv->last_enqueue = ++dev_priv->counter; - if (dev_priv->counter > 0x7FFFFFFFUL) - dev_priv->sarea_priv->last_enqueue = dev_priv->counter = 1; - BEGIN_LP_RING(4); OUT_RING(CMD_STORE_DWORD_IDX); OUT_RING(20); OUT_RING(dev_priv->counter); OUT_RING(0); ADVANCE_LP_RING(); +#ifdef I915_HAVE_FENCE + drm_fence_flush_old(dev, dev_priv->counter); +#endif } static int i915_dispatch_cmdbuffer(drm_device_t * dev, @@ -565,7 +565,9 @@ static int i915_dispatch_flip(drm_device_t * dev) OUT_RING(dev_priv->counter); OUT_RING(0); ADVANCE_LP_RING(); - +#ifdef I915_HAVE_FENCE + drm_fence_flush_old(dev, dev_priv->counter); +#endif dev_priv->sarea_priv->pf_current_page = dev_priv->current_page; return 0; } diff --git a/shared-core/i915_drv.h b/shared-core/i915_drv.h index a87075b1..475ff474 100644 --- a/shared-core/i915_drv.h +++ b/shared-core/i915_drv.h @@ -51,6 +51,10 @@ #define DRIVER_MINOR 5 #define DRIVER_PATCHLEVEL 0 +#if defined(__linux__) +#define I915_HAVE_FENCE +#endif + typedef struct _drm_i915_ring_buffer { int tail_mask; unsigned long Start; @@ -81,7 +85,7 @@ typedef struct drm_i915_private { drm_dma_handle_t *status_page_dmah; void *hw_status_page; dma_addr_t dma_status_page; - unsigned long counter; + uint32_t counter; int back_offset; int front_offset; @@ -98,6 +102,14 @@ typedef struct drm_i915_private { struct mem_block *agp_heap; unsigned int sr01, adpa, ppcr, dvob, dvoc, lvds; int vblank_pipe; + +#ifdef I915_HAVE_FENCE + uint32_t flush_sequence; + uint32_t flush_flags; + uint32_t flush_pending; + uint32_t saved_flush_status; +#endif + } drm_i915_private_t; extern drm_ioctl_desc_t i915_ioctls[]; @@ -123,6 +135,7 @@ extern void i915_driver_irq_postinstall(drm_device_t * dev); extern void i915_driver_irq_uninstall(drm_device_t * dev); extern int i915_vblank_pipe_set(DRM_IOCTL_ARGS); extern int i915_vblank_pipe_get(DRM_IOCTL_ARGS); +extern int i915_emit_irq(drm_device_t * dev); /* i915_mem.c */ extern int i915_mem_alloc(DRM_IOCTL_ARGS); @@ -132,6 +145,13 @@ extern int i915_mem_destroy_heap(DRM_IOCTL_ARGS); extern void i915_mem_takedown(struct mem_block **heap); extern void i915_mem_release(drm_device_t * dev, DRMFILE filp, struct mem_block *heap); +#ifdef I915_HAVE_FENCE +/* i915_fence.c */ +extern void i915_fence_handler(drm_device_t *dev); +extern int i915_fence_emit_sequence(drm_device_t *dev, uint32_t *sequence); +extern void i915_poke_flush(drm_device_t *dev); +extern void i915_sync_flush(drm_device_t *dev); +#endif #define I915_READ(reg) DRM_READ32(dev_priv->mmio_map, (reg)) #define I915_WRITE(reg,val) DRM_WRITE32(dev_priv->mmio_map, (reg), (val)) @@ -191,6 +211,7 @@ extern int i915_wait_ring(drm_device_t * dev, int n, const char *caller); #define I915REG_INT_IDENTITY_R 0x020a4 #define I915REG_INT_MASK_R 0x020a8 #define I915REG_INT_ENABLE_R 0x020a0 +#define I915REG_INSTPM 0x020c0 #define SRX_INDEX 0x3c4 #define SRX_DATA 0x3c5 @@ -272,6 +293,6 @@ extern int i915_wait_ring(drm_device_t * dev, int n, const char *caller); #define CMD_OP_DESTBUFFER_INFO ((0x3<<29)|(0x1d<<24)|(0x8e<<16)|1) -#define READ_BREADCRUMB(dev_priv) (((u32*)(dev_priv->hw_status_page))[5]) - +#define READ_BREADCRUMB(dev_priv) (((volatile u32*)(dev_priv->hw_status_page))[5]) +#define READ_HWSP(dev_priv, reg) (((volatile u32*)(dev_priv->hw_status_page))[reg]) #endif diff --git a/shared-core/i915_irq.c b/shared-core/i915_irq.c index 14213b58..08d3140b 100644 --- a/shared-core/i915_irq.c +++ b/shared-core/i915_irq.c @@ -56,8 +56,12 @@ irqreturn_t i915_driver_irq_handler(DRM_IRQ_ARGS) dev_priv->sarea_priv->last_dispatch = READ_BREADCRUMB(dev_priv); - if (temp & USER_INT_FLAG) + if (temp & USER_INT_FLAG) { DRM_WAKEUP(&dev_priv->irq_queue); +#ifdef I915_HAVE_FENCE + i915_fence_handler(dev); +#endif + } if (temp & (VSYNC_PIPEA_FLAG | VSYNC_PIPEB_FLAG)) { atomic_inc(&dev->vbl_received); @@ -68,7 +72,7 @@ irqreturn_t i915_driver_irq_handler(DRM_IRQ_ARGS) return IRQ_HANDLED; } -static int i915_emit_irq(drm_device_t * dev) +int i915_emit_irq(drm_device_t * dev) { drm_i915_private_t *dev_priv = dev->dev_private; @@ -260,7 +264,7 @@ void i915_driver_irq_preinstall(drm_device_t * dev) { drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private; - I915_WRITE16(I915REG_HWSTAM, 0xfffe); + I915_WRITE16(I915REG_HWSTAM, 0xeffe); I915_WRITE16(I915REG_INT_MASK_R, 0x0); I915_WRITE16(I915REG_INT_ENABLE_R, 0x0); } |