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-rw-r--r--shared-core/mach64_drv.h493
1 files changed, 147 insertions, 346 deletions
diff --git a/shared-core/mach64_drv.h b/shared-core/mach64_drv.h
index cebd4c6e..fb8a7724 100644
--- a/shared-core/mach64_drv.h
+++ b/shared-core/mach64_drv.h
@@ -29,7 +29,7 @@
* Gareth Hughes <gareth@valinux.com>
* Frank C. Earl <fearl@airmail.net>
* Leif Delgass <ldelgass@retinalburn.net>
- * Jos�Fonseca <j_r_fonseca@yahoo.co.uk>
+ * José Fonseca <j_r_fonseca@yahoo.co.uk>
*/
#ifndef __MACH64_DRV_H__
@@ -96,6 +96,8 @@ typedef struct drm_mach64_private {
unsigned int depth_bpp;
unsigned int depth_offset, depth_pitch;
+ atomic_t vbl_received; /**< Number of vblanks received. */
+
u32 front_offset_pitch;
u32 back_offset_pitch;
u32 depth_offset_pitch;
@@ -140,6 +142,11 @@ extern void mach64_dump_engine_info(drm_mach64_private_t * dev_priv);
extern void mach64_dump_ring_info(drm_mach64_private_t * dev_priv);
extern int mach64_do_engine_reset(drm_mach64_private_t * dev_priv);
+extern int mach64_add_buf_to_ring(drm_mach64_private_t *dev_priv,
+ drm_mach64_freelist_t *_entry);
+extern int mach64_add_hostdata_buf_to_ring(drm_mach64_private_t *dev_priv,
+ drm_mach64_freelist_t *_entry);
+
extern int mach64_do_dma_idle(drm_mach64_private_t * dev_priv);
extern int mach64_do_dma_flush(drm_mach64_private_t * dev_priv);
extern int mach64_do_cleanup_dma(struct drm_device * dev);
@@ -155,13 +162,14 @@ extern int mach64_dma_blit(struct drm_device *dev, void *data,
struct drm_file *file_priv);
extern int mach64_get_param(struct drm_device *dev, void *data,
struct drm_file *file_priv);
-extern int mach64_driver_vblank_wait(struct drm_device * dev,
- unsigned int *sequence);
+extern u32 mach64_get_vblank_counter(struct drm_device *dev, int crtc);
+extern int mach64_enable_vblank(struct drm_device *dev, int crtc);
+extern void mach64_disable_vblank(struct drm_device *dev, int crtc);
extern irqreturn_t mach64_driver_irq_handler(DRM_IRQ_ARGS);
-extern void mach64_driver_irq_preinstall(struct drm_device * dev);
-extern void mach64_driver_irq_postinstall(struct drm_device * dev);
-extern void mach64_driver_irq_uninstall(struct drm_device * dev);
+extern void mach64_driver_irq_preinstall(struct drm_device *dev);
+extern int mach64_driver_irq_postinstall(struct drm_device *dev);
+extern void mach64_driver_irq_uninstall(struct drm_device *dev);
/* ================================================================
* Registers
@@ -171,14 +179,14 @@ extern void mach64_driver_irq_uninstall(struct drm_device * dev);
#define MACH64_AGP_CNTL 0x014c
#define MACH64_ALPHA_TST_CNTL 0x0550
-#define MACH64_DSP_CONFIG 0x0420
-#define MACH64_DSP_ON_OFF 0x0424
-#define MACH64_EXT_MEM_CNTL 0x04ac
-#define MACH64_GEN_TEST_CNTL 0x04d0
-#define MACH64_HW_DEBUG 0x047c
-#define MACH64_MEM_ADDR_CONFIG 0x0434
-#define MACH64_MEM_BUF_CNTL 0x042c
-#define MACH64_MEM_CNTL 0x04b0
+#define MACH64_DSP_CONFIG 0x0420
+#define MACH64_DSP_ON_OFF 0x0424
+#define MACH64_EXT_MEM_CNTL 0x04ac
+#define MACH64_GEN_TEST_CNTL 0x04d0
+#define MACH64_HW_DEBUG 0x047c
+#define MACH64_MEM_ADDR_CONFIG 0x0434
+#define MACH64_MEM_BUF_CNTL 0x042c
+#define MACH64_MEM_CNTL 0x04b0
#define MACH64_BM_ADDR 0x0648
#define MACH64_BM_COMMAND 0x0188
@@ -205,16 +213,16 @@ extern void mach64_driver_irq_uninstall(struct drm_device * dev);
#define MACH64_CLR_CMP_CLR 0x0700
#define MACH64_CLR_CMP_CNTL 0x0708
#define MACH64_CLR_CMP_MASK 0x0704
-#define MACH64_CONFIG_CHIP_ID 0x04e0
-#define MACH64_CONFIG_CNTL 0x04dc
-#define MACH64_CONFIG_STAT0 0x04e4
-#define MACH64_CONFIG_STAT1 0x0494
-#define MACH64_CONFIG_STAT2 0x0498
+#define MACH64_CONFIG_CHIP_ID 0x04e0
+#define MACH64_CONFIG_CNTL 0x04dc
+#define MACH64_CONFIG_STAT0 0x04e4
+#define MACH64_CONFIG_STAT1 0x0494
+#define MACH64_CONFIG_STAT2 0x0498
#define MACH64_CONTEXT_LOAD_CNTL 0x072c
#define MACH64_CONTEXT_MASK 0x0720
#define MACH64_COMPOSITE_SHADOW_ID 0x0798
-#define MACH64_CRC_SIG 0x04e8
-#define MACH64_CUSTOM_MACRO_CNTL 0x04d4
+#define MACH64_CRC_SIG 0x04e8
+#define MACH64_CUSTOM_MACRO_CNTL 0x04d4
#define MACH64_DP_BKGD_CLR 0x06c0
#define MACH64_DP_FOG_CLR 0x06c4
@@ -358,7 +366,7 @@ extern void mach64_driver_irq_uninstall(struct drm_device * dev);
#define MACH64_TEX_0_OFF 0x05c0
#define MACH64_TEX_CNTL 0x0774
#define MACH64_TEX_SIZE_PITCH 0x0770
-#define MACH64_TIMER_CONFIG 0x0428
+#define MACH64_TIMER_CONFIG 0x0428
#define MACH64_VERTEX_1_ARGB 0x0254
#define MACH64_VERTEX_1_S 0x0240
@@ -521,95 +529,17 @@ extern void mach64_driver_irq_uninstall(struct drm_device * dev);
#define MACH64_APERTURE_OFFSET 0x7ff800 /* frame-buffer offset for gui-masters */
/* ================================================================
- * Misc helper macros
+ * Ring operations
+ *
+ * Since the Mach64 bus master engine requires polling, these functions end
+ * up being called frequently, hence being inline.
*/
-static __inline__ void mach64_set_dma_eol(volatile u32 * addr)
-{
-#if defined(__i386__)
- int nr = 31;
-
- /* Taken from include/asm-i386/bitops.h linux header */
- __asm__ __volatile__("lock;" "btsl %1,%0":"=m"(*addr)
- :"Ir"(nr));
-#elif defined(__powerpc__)
- u32 old;
- u32 mask = cpu_to_le32(MACH64_DMA_EOL);
-
- /* Taken from the include/asm-ppc/bitops.h linux header */
- __asm__ __volatile__("\n\
-1: lwarx %0,0,%3 \n\
- or %0,%0,%2 \n\
- stwcx. %0,0,%3 \n\
- bne- 1b":"=&r"(old), "=m"(*addr)
- :"r"(mask), "r"(addr), "m"(*addr)
- :"cc");
-#elif defined(__alpha__)
- u32 temp;
- u32 mask = MACH64_DMA_EOL;
-
- /* Taken from the include/asm-alpha/bitops.h linux header */
- __asm__ __volatile__("1: ldl_l %0,%3\n"
- " bis %0,%2,%0\n"
- " stl_c %0,%1\n"
- " beq %0,2f\n"
- ".subsection 2\n"
- "2: br 1b\n"
- ".previous":"=&r"(temp), "=m"(*addr)
- :"Ir"(mask), "m"(*addr));
-#else
- u32 mask = cpu_to_le32(MACH64_DMA_EOL);
-
- *addr |= mask;
-#endif
-}
-
-static __inline__ void mach64_clear_dma_eol(volatile u32 * addr)
-{
-#if defined(__i386__)
- int nr = 31;
-
- /* Taken from include/asm-i386/bitops.h linux header */
- __asm__ __volatile__("lock;" "btrl %1,%0":"=m"(*addr)
- :"Ir"(nr));
-#elif defined(__powerpc__)
- u32 old;
- u32 mask = cpu_to_le32(MACH64_DMA_EOL);
-
- /* Taken from the include/asm-ppc/bitops.h linux header */
- __asm__ __volatile__("\n\
-1: lwarx %0,0,%3 \n\
- andc %0,%0,%2 \n\
- stwcx. %0,0,%3 \n\
- bne- 1b":"=&r"(old), "=m"(*addr)
- :"r"(mask), "r"(addr), "m"(*addr)
- :"cc");
-#elif defined(__alpha__)
- u32 temp;
- u32 mask = ~MACH64_DMA_EOL;
-
- /* Taken from the include/asm-alpha/bitops.h linux header */
- __asm__ __volatile__("1: ldl_l %0,%3\n"
- " and %0,%2,%0\n"
- " stl_c %0,%1\n"
- " beq %0,2f\n"
- ".subsection 2\n"
- "2: br 1b\n"
- ".previous":"=&r"(temp), "=m"(*addr)
- :"Ir"(mask), "m"(*addr));
-#else
- u32 mask = cpu_to_le32(~MACH64_DMA_EOL);
-
- *addr &= mask;
-#endif
-}
-
static __inline__ void mach64_ring_start(drm_mach64_private_t * dev_priv)
{
drm_mach64_descriptor_ring_t *ring = &dev_priv->ring;
- DRM_DEBUG("%s: head_addr: 0x%08x head: %d tail: %d space: %d\n",
- __FUNCTION__,
+ DRM_DEBUG("head_addr: 0x%08x head: %d tail: %d space: %d\n",
ring->head_addr, ring->head, ring->tail, ring->space);
if (mach64_do_wait_for_idle(dev_priv) < 0) {
@@ -635,8 +565,7 @@ static __inline__ void mach64_ring_start(drm_mach64_private_t * dev_priv)
static __inline__ void mach64_ring_resume(drm_mach64_private_t * dev_priv,
drm_mach64_descriptor_ring_t * ring)
{
- DRM_DEBUG("%s: head_addr: 0x%08x head: %d tail: %d space: %d\n",
- __FUNCTION__,
+ DRM_DEBUG("head_addr: 0x%08x head: %d tail: %d space: %d\n",
ring->head_addr, ring->head, ring->tail, ring->space);
/* reset descriptor table ring head */
@@ -655,8 +584,7 @@ static __inline__ void mach64_ring_resume(drm_mach64_private_t * dev_priv,
MACH64_WRITE(MACH64_DST_HEIGHT_WIDTH, 0);
if (dev_priv->driver_mode == MACH64_MODE_DMA_SYNC) {
if ((mach64_do_wait_for_idle(dev_priv)) < 0) {
- DRM_ERROR("%s: idle failed, resetting engine\n",
- __FUNCTION__);
+ DRM_ERROR("idle failed, resetting engine\n");
mach64_dump_engine_info(dev_priv);
mach64_do_engine_reset(dev_priv);
return;
@@ -666,11 +594,22 @@ static __inline__ void mach64_ring_resume(drm_mach64_private_t * dev_priv,
}
}
+/**
+ * Poll the ring head and make sure the bus master is alive.
+ *
+ * Mach64's bus master engine will stop if there are no more entries to process.
+ * This function polls the engine for the last processed entry and calls
+ * mach64_ring_resume if there is an unprocessed entry.
+ *
+ * Note also that, since we update the ring tail while the bus master engine is
+ * in operation, it is possible that the last tail update was too late to be
+ * processed, and the bus master engine stops at the previous tail position.
+ * Therefore it is important to call this function frequently.
+ */
static __inline__ void mach64_ring_tick(drm_mach64_private_t * dev_priv,
drm_mach64_descriptor_ring_t * ring)
{
- DRM_DEBUG("%s: head_addr: 0x%08x head: %d tail: %d space: %d\n",
- __FUNCTION__,
+ DRM_DEBUG("head_addr: 0x%08x head: %d tail: %d space: %d\n",
ring->head_addr, ring->head, ring->tail, ring->space);
if (!dev_priv->ring_running) {
@@ -717,8 +656,7 @@ static __inline__ void mach64_ring_tick(drm_mach64_private_t * dev_priv,
static __inline__ void mach64_ring_stop(drm_mach64_private_t * dev_priv)
{
- DRM_DEBUG("%s: head_addr: 0x%08x head: %d tail: %d space: %d\n",
- __FUNCTION__,
+ DRM_DEBUG("head_addr: 0x%08x head: %d tail: %d space: %d\n",
dev_priv->ring.head_addr, dev_priv->ring.head,
dev_priv->ring.tail, dev_priv->ring.space);
@@ -739,7 +677,7 @@ mach64_update_ring_snapshot(drm_mach64_private_t * dev_priv)
{
drm_mach64_descriptor_ring_t *ring = &dev_priv->ring;
- DRM_DEBUG("%s\n", __FUNCTION__);
+ DRM_DEBUG("\n");
mach64_ring_tick(dev_priv, ring);
@@ -750,70 +688,22 @@ mach64_update_ring_snapshot(drm_mach64_private_t * dev_priv)
}
/* ================================================================
- * DMA descriptor ring macros
- */
-
-#define RING_LOCALS \
- int _ring_tail, _ring_write; unsigned int _ring_mask; volatile u32 *_ring
-
-#define RING_WRITE_OFS _ring_write
-
-#define BEGIN_RING( n ) \
-do { \
- if ( MACH64_VERBOSE ) { \
- DRM_INFO( "BEGIN_RING( %d ) in %s\n", \
- (n), __FUNCTION__ ); \
- } \
- if ( dev_priv->ring.space <= (n) * sizeof(u32) ) { \
- int ret; \
- if ((ret=mach64_wait_ring( dev_priv, (n) * sizeof(u32))) < 0 ) { \
- DRM_ERROR( "wait_ring failed, resetting engine\n"); \
- mach64_dump_engine_info( dev_priv ); \
- mach64_do_engine_reset( dev_priv ); \
- return ret; \
- } \
- } \
- dev_priv->ring.space -= (n) * sizeof(u32); \
- _ring = (u32 *) dev_priv->ring.start; \
- _ring_tail = _ring_write = dev_priv->ring.tail; \
- _ring_mask = dev_priv->ring.tail_mask; \
-} while (0)
-
-#define OUT_RING( x ) \
-do { \
- if ( MACH64_VERBOSE ) { \
- DRM_INFO( " OUT_RING( 0x%08x ) at 0x%x\n", \
- (unsigned int)(x), _ring_write ); \
- } \
- _ring[_ring_write++] = cpu_to_le32( x ); \
- _ring_write &= _ring_mask; \
-} while (0)
-
-#define ADVANCE_RING() \
-do { \
- if ( MACH64_VERBOSE ) { \
- DRM_INFO( "ADVANCE_RING() wr=0x%06x tail=0x%06x\n", \
- _ring_write, _ring_tail ); \
- } \
- DRM_MEMORYBARRIER(); \
- mach64_clear_dma_eol( &_ring[(_ring_tail - 2) & _ring_mask] ); \
- DRM_MEMORYBARRIER(); \
- dev_priv->ring.tail = _ring_write; \
- mach64_ring_tick( dev_priv, &(dev_priv)->ring ); \
-} while (0)
-
-/* ================================================================
* DMA macros
+ *
+ * Mach64's ring buffer doesn't take register writes directly. These
+ * have to be written indirectly in DMA buffers. These macros simplify
+ * the task of setting up a buffer, writing commands to it, and
+ * queuing the buffer in the ring.
*/
#define DMALOCALS \
drm_mach64_freelist_t *_entry = NULL; \
- struct drm_buf *_buf = NULL; \
+ struct drm_buf *_buf = NULL; \
u32 *_buf_wptr; int _outcount
#define GETBUFPTR( __buf ) \
-((dev_priv->is_pci) ? \
- ((u32 *)(__buf)->address) : \
+((dev_priv->is_pci) ? \
+ ((u32 *)(__buf)->address) : \
((u32 *)((char *)dev_priv->dev_buffers->handle + (__buf)->offset)))
#define GETBUFADDR( __buf ) ((u32)(__buf)->bus_address)
@@ -828,7 +718,7 @@ static __inline__ int mach64_find_pending_buf_entry(drm_mach64_private_t *
struct list_head *ptr;
#if MACH64_EXTRA_CHECKING
if (list_empty(&dev_priv->pending)) {
- DRM_ERROR("Empty pending list in %s\n", __FUNCTION__);
+ DRM_ERROR("Empty pending list in \n");
return -EINVAL;
}
#endif
@@ -844,7 +734,7 @@ static __inline__ int mach64_find_pending_buf_entry(drm_mach64_private_t *
return 0;
}
-#define DMASETPTR( _p ) \
+#define DMASETPTR( _p ) \
do { \
_buf = (_p); \
_outcount = 0; \
@@ -855,18 +745,15 @@ do { \
#define DMAGETPTR( file_priv, dev_priv, n ) \
do { \
if ( MACH64_VERBOSE ) { \
- DRM_INFO( "DMAGETPTR( %d ) in %s\n", \
- n, __FUNCTION__ ); \
+ DRM_INFO( "DMAGETPTR( %d )\n", (n) ); \
} \
_buf = mach64_freelist_get( dev_priv ); \
if (_buf == NULL) { \
- DRM_ERROR("%s: couldn't get buffer in DMAGETPTR\n", \
- __FUNCTION__ ); \
+ DRM_ERROR("couldn't get buffer in DMAGETPTR\n"); \
return -EAGAIN; \
} \
if (_buf->pending) { \
- DRM_ERROR("%s: pending buf in DMAGETPTR\n", \
- __FUNCTION__ ); \
+ DRM_ERROR("pending buf in DMAGETPTR\n"); \
return -EFAULT; \
} \
_buf->file_priv = file_priv; \
@@ -886,173 +773,87 @@ do { \
_buf->used += 8; \
} while (0)
-#define DMAADVANCE( dev_priv, _discard ) \
-do { \
- struct list_head *ptr; \
- RING_LOCALS; \
- \
- if ( MACH64_VERBOSE ) { \
- DRM_INFO( "DMAADVANCE() in %s\n", __FUNCTION__ ); \
- } \
- \
- if (_buf->used <= 0) { \
- DRM_ERROR( "DMAADVANCE() in %s: sending empty buf %d\n", \
- __FUNCTION__, _buf->idx ); \
- return -EFAULT; \
- } \
- if (_buf->pending) { \
- /* This is a resued buffer, so we need to find it in the pending list */ \
- int ret; \
- if ( (ret=mach64_find_pending_buf_entry(dev_priv, &_entry, _buf)) ) { \
- DRM_ERROR( "DMAADVANCE() in %s: couldn't find pending buf %d\n", \
- __FUNCTION__, _buf->idx ); \
- return ret; \
- } \
- if (_entry->discard) { \
- DRM_ERROR( "DMAADVANCE() in %s: sending discarded pending buf %d\n", \
- __FUNCTION__, _buf->idx ); \
- return -EFAULT; \
- } \
- } else { \
- if (list_empty(&dev_priv->placeholders)) { \
- DRM_ERROR( "DMAADVANCE() in %s: empty placeholder list\n", \
- __FUNCTION__ ); \
- return -EFAULT; \
- } \
- ptr = dev_priv->placeholders.next; \
- list_del(ptr); \
- _entry = list_entry(ptr, drm_mach64_freelist_t, list); \
- _buf->pending = 1; \
- _entry->buf = _buf; \
- list_add_tail(ptr, &dev_priv->pending); \
- } \
- _entry->discard = (_discard); \
- ADD_BUF_TO_RING( dev_priv ); \
-} while (0)
-
-#define DMADISCARDBUF() \
-do { \
- if (_entry == NULL) { \
- int ret; \
- if ( (ret=mach64_find_pending_buf_entry(dev_priv, &_entry, _buf)) ) { \
- DRM_ERROR( "%s: couldn't find pending buf %d\n", \
- __FUNCTION__, _buf->idx ); \
- return ret; \
- } \
- } \
- _entry->discard = 1; \
-} while(0)
-
-#define ADD_BUF_TO_RING( dev_priv ) \
-do { \
- int bytes, pages, remainder; \
- u32 address, page; \
- int i; \
- \
- bytes = _buf->used; \
- address = GETBUFADDR( _buf ); \
- \
- pages = (bytes + MACH64_DMA_CHUNKSIZE - 1) / MACH64_DMA_CHUNKSIZE; \
- \
- BEGIN_RING( pages * 4 ); \
- \
- for ( i = 0 ; i < pages-1 ; i++ ) { \
- page = address + i * MACH64_DMA_CHUNKSIZE; \
- OUT_RING( MACH64_APERTURE_OFFSET + MACH64_BM_ADDR ); \
- OUT_RING( page ); \
- OUT_RING( MACH64_DMA_CHUNKSIZE | MACH64_DMA_HOLD_OFFSET ); \
- OUT_RING( 0 ); \
- } \
- \
- /* generate the final descriptor for any remaining commands in this buffer */ \
- page = address + i * MACH64_DMA_CHUNKSIZE; \
- remainder = bytes - i * MACH64_DMA_CHUNKSIZE; \
- \
- /* Save dword offset of last descriptor for this buffer. \
- * This is needed to check for completion of the buffer in freelist_get \
- */ \
- _entry->ring_ofs = RING_WRITE_OFS; \
- \
- OUT_RING( MACH64_APERTURE_OFFSET + MACH64_BM_ADDR ); \
- OUT_RING( page ); \
- OUT_RING( remainder | MACH64_DMA_HOLD_OFFSET | MACH64_DMA_EOL ); \
- OUT_RING( 0 ); \
- \
- ADVANCE_RING(); \
-} while(0)
-
-#define DMAADVANCEHOSTDATA( dev_priv ) \
-do { \
- struct list_head *ptr; \
- RING_LOCALS; \
- \
- if ( MACH64_VERBOSE ) { \
- DRM_INFO( "DMAADVANCEHOSTDATA() in %s\n", __FUNCTION__ ); \
- } \
- \
- if (_buf->used <= 0) { \
- DRM_ERROR( "DMAADVANCEHOSTDATA() in %s: sending empty buf %d\n", \
- __FUNCTION__, _buf->idx ); \
- return -EFAULT; \
- } \
- if (list_empty(&dev_priv->placeholders)) { \
- DRM_ERROR( "%s: empty placeholder list in DMAADVANCEHOSTDATA()\n", \
- __FUNCTION__ ); \
- return -EFAULT; \
- } \
- \
- ptr = dev_priv->placeholders.next; \
- list_del(ptr); \
- _entry = list_entry(ptr, drm_mach64_freelist_t, list); \
- _entry->buf = _buf; \
- _entry->buf->pending = 1; \
- list_add_tail(ptr, &dev_priv->pending); \
- _entry->discard = 1; \
- ADD_HOSTDATA_BUF_TO_RING( dev_priv ); \
-} while (0)
-
-#define ADD_HOSTDATA_BUF_TO_RING( dev_priv ) \
-do { \
- int bytes, pages, remainder; \
- u32 address, page; \
- int i; \
- \
- bytes = _buf->used - MACH64_HOSTDATA_BLIT_OFFSET; \
- pages = (bytes + MACH64_DMA_CHUNKSIZE - 1) / MACH64_DMA_CHUNKSIZE; \
- address = GETBUFADDR( _buf ); \
- \
- BEGIN_RING( 4 + pages * 4 ); \
- \
- OUT_RING( MACH64_APERTURE_OFFSET + MACH64_BM_ADDR ); \
- OUT_RING( address ); \
- OUT_RING( MACH64_HOSTDATA_BLIT_OFFSET | MACH64_DMA_HOLD_OFFSET ); \
- OUT_RING( 0 ); \
- \
- address += MACH64_HOSTDATA_BLIT_OFFSET; \
- \
- for ( i = 0 ; i < pages-1 ; i++ ) { \
- page = address + i * MACH64_DMA_CHUNKSIZE; \
- OUT_RING( MACH64_APERTURE_OFFSET + MACH64_BM_HOSTDATA ); \
- OUT_RING( page ); \
- OUT_RING( MACH64_DMA_CHUNKSIZE | MACH64_DMA_HOLD_OFFSET ); \
- OUT_RING( 0 ); \
- } \
- \
- /* generate the final descriptor for any remaining commands in this buffer */ \
- page = address + i * MACH64_DMA_CHUNKSIZE; \
- remainder = bytes - i * MACH64_DMA_CHUNKSIZE; \
- \
- /* Save dword offset of last descriptor for this buffer. \
- * This is needed to check for completion of the buffer in freelist_get \
- */ \
- _entry->ring_ofs = RING_WRITE_OFS; \
- \
- OUT_RING( MACH64_APERTURE_OFFSET + MACH64_BM_HOSTDATA ); \
- OUT_RING( page ); \
- OUT_RING( remainder | MACH64_DMA_HOLD_OFFSET | MACH64_DMA_EOL ); \
- OUT_RING( 0 ); \
- \
- ADVANCE_RING(); \
-} while(0)
+#define DMAADVANCE( dev_priv, _discard ) \
+ do { \
+ struct list_head *ptr; \
+ int ret; \
+ \
+ if ( MACH64_VERBOSE ) { \
+ DRM_INFO( "DMAADVANCE() in \n" ); \
+ } \
+ \
+ if (_buf->used <= 0) { \
+ DRM_ERROR( "DMAADVANCE(): sending empty buf %d\n", \
+ _buf->idx ); \
+ return -EFAULT; \
+ } \
+ if (_buf->pending) { \
+ /* This is a resued buffer, so we need to find it in the pending list */ \
+ if ((ret = mach64_find_pending_buf_entry(dev_priv, &_entry, _buf))) { \
+ DRM_ERROR( "DMAADVANCE(): couldn't find pending buf %d\n", _buf->idx ); \
+ return ret; \
+ } \
+ if (_entry->discard) { \
+ DRM_ERROR( "DMAADVANCE(): sending discarded pending buf %d\n", _buf->idx ); \
+ return -EFAULT; \
+ } \
+ } else { \
+ if (list_empty(&dev_priv->placeholders)) { \
+ DRM_ERROR( "DMAADVANCE(): empty placeholder list\n"); \
+ return -EFAULT; \
+ } \
+ ptr = dev_priv->placeholders.next; \
+ list_del(ptr); \
+ _entry = list_entry(ptr, drm_mach64_freelist_t, list); \
+ _buf->pending = 1; \
+ _entry->buf = _buf; \
+ list_add_tail(ptr, &dev_priv->pending); \
+ } \
+ _entry->discard = (_discard); \
+ if ((ret = mach64_add_buf_to_ring( dev_priv, _entry ))) \
+ return ret; \
+ } while (0)
+
+#define DMADISCARDBUF() \
+ do { \
+ if (_entry == NULL) { \
+ int ret; \
+ if ((ret = mach64_find_pending_buf_entry(dev_priv, &_entry, _buf))) { \
+ DRM_ERROR( "couldn't find pending buf %d\n", \
+ _buf->idx ); \
+ return ret; \
+ } \
+ } \
+ _entry->discard = 1; \
+ } while(0)
+
+#define DMAADVANCEHOSTDATA( dev_priv ) \
+ do { \
+ struct list_head *ptr; \
+ int ret; \
+ \
+ if ( MACH64_VERBOSE ) { \
+ DRM_INFO( "DMAADVANCEHOSTDATA() in \n" ); \
+ } \
+ \
+ if (_buf->used <= 0) { \
+ DRM_ERROR( "DMAADVANCEHOSTDATA(): sending empty buf %d\n", _buf->idx ); \
+ return -EFAULT; \
+ } \
+ if (list_empty(&dev_priv->placeholders)) { \
+ DRM_ERROR( "empty placeholder list in DMAADVANCEHOSTDATA()\n" ); \
+ return -EFAULT; \
+ } \
+ \
+ ptr = dev_priv->placeholders.next; \
+ list_del(ptr); \
+ _entry = list_entry(ptr, drm_mach64_freelist_t, list); \
+ _entry->buf = _buf; \
+ _entry->buf->pending = 1; \
+ list_add_tail(ptr, &dev_priv->pending); \
+ _entry->discard = 1; \
+ if ((ret = mach64_add_hostdata_buf_to_ring( dev_priv, _entry ))) \
+ return ret; \
+ } while (0)
#endif /* __MACH64_DRV_H__ */
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-25 17:59:59 +0000