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-rw-r--r--shared-core/mach64_dma.c366
1 files changed, 303 insertions, 63 deletions
diff --git a/shared-core/mach64_dma.c b/shared-core/mach64_dma.c
index e0a67458..339234fa 100644
--- a/shared-core/mach64_dma.c
+++ b/shared-core/mach64_dma.c
@@ -6,7 +6,7 @@
* \author Gareth Hughes <gareth@valinux.com>
* \author Frank C. Earl <fearl@airmail.net>
* \author Leif Delgass <ldelgass@retinalburn.net>
- * \author Jose Fonseca <j_r_fonseca@yahoo.co.uk>
+ * \author José Fonseca <j_r_fonseca@yahoo.co.uk>
*/
/*
@@ -53,11 +53,11 @@
*
* \param dev_priv pointer to device private data structure.
* \param entries number of free entries in the FIFO to wait for.
- *
+ *
* \returns zero on success, or -EBUSY if the timeout (specificed by
* drm_mach64_private::usec_timeout) occurs.
*/
-int mach64_do_wait_for_fifo(drm_mach64_private_t * dev_priv, int entries)
+int mach64_do_wait_for_fifo(drm_mach64_private_t *dev_priv, int entries)
{
int slots = 0, i;
@@ -68,15 +68,14 @@ int mach64_do_wait_for_fifo(drm_mach64_private_t * dev_priv, int entries)
DRM_UDELAY(1);
}
- DRM_INFO("%s failed! slots=%d entries=%d\n", __FUNCTION__, slots,
- entries);
+ DRM_INFO("failed! slots=%d entries=%d\n", slots, entries);
return -EBUSY;
}
/**
* Wait for the draw engine to be idle.
*/
-int mach64_do_wait_for_idle(drm_mach64_private_t * dev_priv)
+int mach64_do_wait_for_idle(drm_mach64_private_t *dev_priv)
{
int i, ret;
@@ -85,14 +84,12 @@ int mach64_do_wait_for_idle(drm_mach64_private_t * dev_priv)
return ret;
for (i = 0; i < dev_priv->usec_timeout; i++) {
- if (!(MACH64_READ(MACH64_GUI_STAT) & MACH64_GUI_ACTIVE)) {
+ if (!(MACH64_READ(MACH64_GUI_STAT) & MACH64_GUI_ACTIVE))
return 0;
- }
DRM_UDELAY(1);
}
- DRM_INFO("%s failed! GUI_STAT=0x%08x\n", __FUNCTION__,
- MACH64_READ(MACH64_GUI_STAT));
+ DRM_INFO("failed! GUI_STAT=0x%08x\n", MACH64_READ(MACH64_GUI_STAT));
mach64_dump_ring_info(dev_priv);
return -EBUSY;
}
@@ -107,16 +104,16 @@ int mach64_do_wait_for_idle(drm_mach64_private_t * dev_priv)
*
* This function should be called before writing new entries to the ring
* buffer.
- *
+ *
* \param dev_priv pointer to device private data structure.
* \param n number of free entries in the ring buffer to wait for.
- *
+ *
* \returns zero on success, or -EBUSY if the timeout (specificed by
* drm_mach64_private_t::usec_timeout) occurs.
*
* \sa mach64_dump_ring_info()
*/
-int mach64_wait_ring(drm_mach64_private_t * dev_priv, int n)
+int mach64_wait_ring(drm_mach64_private_t *dev_priv, int n)
{
drm_mach64_descriptor_ring_t *ring = &dev_priv->ring;
int i;
@@ -124,9 +121,8 @@ int mach64_wait_ring(drm_mach64_private_t * dev_priv, int n)
for (i = 0; i < dev_priv->usec_timeout; i++) {
mach64_update_ring_snapshot(dev_priv);
if (ring->space >= n) {
- if (i > 0) {
- DRM_DEBUG("%s: %d usecs\n", __FUNCTION__, i);
- }
+ if (i > 0)
+ DRM_DEBUG("%d usecs\n", i);
return 0;
}
DRM_UDELAY(1);
@@ -139,11 +135,11 @@ int mach64_wait_ring(drm_mach64_private_t * dev_priv, int n)
}
/**
- * Wait until all DMA requests have been processed...
+ * Wait until all DMA requests have been processed...
*
* \sa mach64_wait_ring()
*/
-static int mach64_ring_idle(drm_mach64_private_t * dev_priv)
+static int mach64_ring_idle(drm_mach64_private_t *dev_priv)
{
drm_mach64_descriptor_ring_t *ring = &dev_priv->ring;
u32 head;
@@ -155,9 +151,8 @@ static int mach64_ring_idle(drm_mach64_private_t * dev_priv)
mach64_update_ring_snapshot(dev_priv);
if (ring->head == ring->tail &&
!(MACH64_READ(MACH64_GUI_STAT) & MACH64_GUI_ACTIVE)) {
- if (i > 0) {
- DRM_DEBUG("%s: %d usecs\n", __FUNCTION__, i);
- }
+ if (i > 0)
+ DRM_DEBUG("%d usecs\n", i);
return 0;
}
if (ring->head == head) {
@@ -169,8 +164,7 @@ static int mach64_ring_idle(drm_mach64_private_t * dev_priv)
DRM_UDELAY(1);
}
- DRM_INFO("%s failed! GUI_STAT=0x%08x\n", __FUNCTION__,
- MACH64_READ(MACH64_GUI_STAT));
+ DRM_INFO("failed! GUI_STAT=0x%08x\n", MACH64_READ(MACH64_GUI_STAT));
mach64_dump_ring_info(dev_priv);
return -EBUSY;
}
@@ -180,7 +174,7 @@ static int mach64_ring_idle(drm_mach64_private_t * dev_priv)
*
* \sa mach64_do_engine_reset()
*/
-static void mach64_ring_reset(drm_mach64_private_t * dev_priv)
+static void mach64_ring_reset(drm_mach64_private_t *dev_priv)
{
drm_mach64_descriptor_ring_t *ring = &dev_priv->ring;
@@ -198,7 +192,7 @@ static void mach64_ring_reset(drm_mach64_private_t * dev_priv)
/**
* Ensure the all the queued commands will be processed.
*/
-int mach64_do_dma_flush(drm_mach64_private_t * dev_priv)
+int mach64_do_dma_flush(drm_mach64_private_t *dev_priv)
{
/* FIXME: It's not necessary to wait for idle when flushing
* we just need to ensure the ring will be completely processed
@@ -210,14 +204,14 @@ int mach64_do_dma_flush(drm_mach64_private_t * dev_priv)
/**
* Stop all DMA activity.
*/
-int mach64_do_dma_idle(drm_mach64_private_t * dev_priv)
+int mach64_do_dma_idle(drm_mach64_private_t *dev_priv)
{
int ret;
/* wait for completion */
if ((ret = mach64_ring_idle(dev_priv)) < 0) {
- DRM_ERROR("%s failed BM_GUI_TABLE=0x%08x tail: %u\n",
- __FUNCTION__, MACH64_READ(MACH64_BM_GUI_TABLE),
+ DRM_ERROR("failed BM_GUI_TABLE=0x%08x tail: %u\n",
+ MACH64_READ(MACH64_BM_GUI_TABLE),
dev_priv->ring.tail);
return ret;
}
@@ -232,11 +226,11 @@ int mach64_do_dma_idle(drm_mach64_private_t * dev_priv)
/**
* Reset the engine. This will stop the DMA if it is running.
*/
-int mach64_do_engine_reset(drm_mach64_private_t * dev_priv)
+int mach64_do_engine_reset(drm_mach64_private_t *dev_priv)
{
u32 tmp;
- DRM_DEBUG("%s\n", __FUNCTION__);
+ DRM_DEBUG("\n");
/* Kill off any outstanding DMA transfers.
*/
@@ -276,7 +270,7 @@ int mach64_do_engine_reset(drm_mach64_private_t * dev_priv)
/**
* Dump engine registers values.
*/
-void mach64_dump_engine_info(drm_mach64_private_t * dev_priv)
+void mach64_dump_engine_info(drm_mach64_private_t *dev_priv)
{
DRM_INFO("\n");
if (!dev_priv->is_pci) {
@@ -417,8 +411,8 @@ void mach64_dump_engine_info(drm_mach64_private_t * dev_priv)
* Used by mach64_dump_ring_info() to dump the contents of the current buffer
* pointed by the ring head.
*/
-static void mach64_dump_buf_info(drm_mach64_private_t * dev_priv,
- struct drm_buf * buf)
+static void mach64_dump_buf_info(drm_mach64_private_t *dev_priv,
+ struct drm_buf *buf)
{
u32 addr = GETBUFADDR(buf);
u32 used = buf->used >> 2;
@@ -477,7 +471,7 @@ static void mach64_dump_buf_info(drm_mach64_private_t * dev_priv,
* Dump the ring state and contents, including the contents of the buffer being
* processed by the graphics engine.
*/
-void mach64_dump_ring_info(drm_mach64_private_t * dev_priv)
+void mach64_dump_ring_info(drm_mach64_private_t *dev_priv)
{
drm_mach64_descriptor_ring_t *ring = &dev_priv->ring;
int i, skipped;
@@ -526,9 +520,8 @@ void mach64_dump_ring_info(drm_mach64_private_t * dev_priv)
u32 buf_addr = GETBUFADDR(buf);
- if (buf_addr <= addr && addr < buf_addr + buf->used) {
+ if (buf_addr <= addr && addr < buf_addr + buf->used)
mach64_dump_buf_info(dev_priv, buf);
- }
}
}
@@ -559,6 +552,259 @@ void mach64_dump_ring_info(drm_mach64_private_t * dev_priv)
/*******************************************************************/
+/** \name DMA descriptor ring macros */
+/*@{*/
+
+/**
+ * Add the end mark to the ring's new tail position.
+ *
+ * The bus master engine will keep processing the DMA buffers listed in the ring
+ * until it finds this mark, making it stop.
+ *
+ * \sa mach64_clear_dma_eol
+ */
+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
+}
+
+/**
+ * Remove the end mark from the ring's old tail position.
+ *
+ * It should be called after calling mach64_set_dma_eol to mark the ring's new
+ * tail position.
+ *
+ * We update the end marks while the bus master engine is in operation. Since
+ * the bus master engine may potentially be reading from the same position
+ * that we write, we must change atomically to avoid having intermediary bad
+ * data.
+ */
+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
+}
+
+#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 ) \n", \
+ (n) ); \
+ } \
+ 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)
+
+/**
+ * Queue a DMA buffer of registers writes into the ring buffer.
+ */
+int mach64_add_buf_to_ring(drm_mach64_private_t *dev_priv,
+ drm_mach64_freelist_t *entry)
+{
+ int bytes, pages, remainder;
+ u32 address, page;
+ int i;
+ struct drm_buf *buf = entry->buf;
+ RING_LOCALS;
+
+ 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();
+
+ return 0;
+}
+
+/**
+ * Queue DMA buffer controlling host data tranfers (e.g., blit).
+ *
+ * Almost identical to mach64_add_buf_to_ring.
+ */
+int mach64_add_hostdata_buf_to_ring(drm_mach64_private_t *dev_priv,
+ drm_mach64_freelist_t *entry)
+{
+ int bytes, pages, remainder;
+ u32 address, page;
+ int i;
+ struct drm_buf *buf = entry->buf;
+ RING_LOCALS;
+
+ 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();
+
+ return 0;
+}
+
+/*@}*/
+
+
+/*******************************************************************/
/** \name DMA test and initialization */
/*@{*/
@@ -582,7 +828,7 @@ static int mach64_bm_dma_test(struct drm_device * dev)
u32 src_cntl, pat_reg0, pat_reg1;
int i, count, failed;
- DRM_DEBUG("%s\n", __FUNCTION__);
+ DRM_DEBUG("\n");
table = (u32 *) dev_priv->ring.start;
@@ -758,7 +1004,7 @@ static int mach64_do_dma_init(struct drm_device * dev, drm_mach64_init_t * init)
u32 tmp;
int i, ret;
- DRM_DEBUG("%s\n", __FUNCTION__);
+ DRM_DEBUG("\n");
dev_priv = drm_alloc(sizeof(drm_mach64_private_t), DRM_MEM_DRIVER);
if (dev_priv == NULL)
@@ -968,7 +1214,7 @@ static int mach64_do_dma_init(struct drm_device * dev, drm_mach64_init_t * init)
/** MMIO Pseudo-DMA (intended primarily for debugging, not performance)
*/
-int mach64_do_dispatch_pseudo_dma(drm_mach64_private_t * dev_priv)
+int mach64_do_dispatch_pseudo_dma(drm_mach64_private_t *dev_priv)
{
drm_mach64_descriptor_ring_t *ring = &dev_priv->ring;
volatile u32 *ring_read;
@@ -983,9 +1229,7 @@ int mach64_do_dispatch_pseudo_dma(drm_mach64_private_t * dev_priv)
target = MACH64_BM_ADDR;
if ((ret = mach64_do_wait_for_idle(dev_priv)) < 0) {
- DRM_INFO
- ("%s: idle failed before pseudo-dma dispatch, resetting engine\n",
- __FUNCTION__);
+ DRM_INFO("idle failed before pseudo-dma dispatch, resetting engine\n");
mach64_dump_engine_info(dev_priv);
mach64_do_engine_reset(dev_priv);
return ret;
@@ -1106,7 +1350,7 @@ int mach64_do_dispatch_pseudo_dma(drm_mach64_private_t * dev_priv)
MACH64_WRITE(MACH64_BM_GUI_TABLE_CMD,
ring->head_addr | MACH64_CIRCULAR_BUF_SIZE_16KB);
- DRM_DEBUG("%s completed\n", __FUNCTION__);
+ DRM_DEBUG("completed\n");
return 0;
}
@@ -1119,7 +1363,7 @@ int mach64_do_dispatch_pseudo_dma(drm_mach64_private_t * dev_priv)
int mach64_do_cleanup_dma(struct drm_device * dev)
{
- DRM_DEBUG("%s\n", __FUNCTION__);
+ DRM_DEBUG("\n");
/* Make sure interrupts are disabled here because the uninstall ioctl
* may not have been called from userspace and after dev_private
@@ -1163,7 +1407,7 @@ int mach64_dma_init(struct drm_device *dev, void *data,
{
drm_mach64_init_t *init = data;
- DRM_DEBUG("%s\n", __FUNCTION__);
+ DRM_DEBUG("\n");
LOCK_TEST_WITH_RETURN(dev, file_priv);
@@ -1182,7 +1426,7 @@ int mach64_dma_idle(struct drm_device *dev, void *data,
{
drm_mach64_private_t *dev_priv = dev->dev_private;
- DRM_DEBUG("%s\n", __FUNCTION__);
+ DRM_DEBUG("\n");
LOCK_TEST_WITH_RETURN(dev, file_priv);
@@ -1194,7 +1438,7 @@ int mach64_dma_flush(struct drm_device *dev, void *data,
{
drm_mach64_private_t *dev_priv = dev->dev_private;
- DRM_DEBUG("%s\n", __FUNCTION__);
+ DRM_DEBUG("\n");
LOCK_TEST_WITH_RETURN(dev, file_priv);
@@ -1206,7 +1450,7 @@ int mach64_engine_reset(struct drm_device *dev, void *data,
{
drm_mach64_private_t *dev_priv = dev->dev_private;
- DRM_DEBUG("%s\n", __FUNCTION__);
+ DRM_DEBUG("\n");
LOCK_TEST_WITH_RETURN(dev, file_priv);
@@ -1228,8 +1472,7 @@ int mach64_init_freelist(struct drm_device * dev)
struct list_head *ptr;
int i;
- DRM_DEBUG("%s: adding %d buffers to freelist\n", __FUNCTION__,
- dma->buf_count);
+ DRM_DEBUG("adding %d buffers to freelist\n", dma->buf_count);
for (i = 0; i < dma->buf_count; i++) {
if ((entry =
@@ -1253,7 +1496,7 @@ void mach64_destroy_freelist(struct drm_device * dev)
struct list_head *ptr;
struct list_head *tmp;
- DRM_DEBUG("%s\n", __FUNCTION__);
+ DRM_DEBUG("\n");
list_for_each_safe(ptr, tmp, &dev_priv->pending) {
list_del(ptr);
@@ -1276,7 +1519,7 @@ void mach64_destroy_freelist(struct drm_device * dev)
/* IMPORTANT: This function should only be called when the engine is idle or locked up,
* as it assumes all buffers in the pending list have been completed by the hardware.
*/
-int mach64_do_release_used_buffers(drm_mach64_private_t * dev_priv)
+int mach64_do_release_used_buffers(drm_mach64_private_t *dev_priv)
{
struct list_head *ptr;
struct list_head *tmp;
@@ -1298,13 +1541,12 @@ int mach64_do_release_used_buffers(drm_mach64_private_t * dev_priv)
}
}
- DRM_DEBUG("%s: released %d buffers from pending list\n", __FUNCTION__,
- i);
+ DRM_DEBUG("released %d buffers from pending list\n", i);
return 0;
}
-static int mach64_do_reclaim_completed(drm_mach64_private_t * dev_priv)
+static int mach64_do_reclaim_completed(drm_mach64_private_t *dev_priv)
{
drm_mach64_descriptor_ring_t *ring = &dev_priv->ring;
struct list_head *ptr;
@@ -1326,8 +1568,7 @@ static int mach64_do_reclaim_completed(drm_mach64_private_t * dev_priv)
#endif
/* last pass is complete, so release everything */
mach64_do_release_used_buffers(dev_priv);
- DRM_DEBUG("%s: idle engine, freed all buffers.\n",
- __FUNCTION__);
+ DRM_DEBUG("idle engine, freed all buffers.\n");
if (list_empty(&dev_priv->free_list)) {
DRM_ERROR("Freelist empty with idle engine\n");
return -1;
@@ -1368,9 +1609,9 @@ static int mach64_do_reclaim_completed(drm_mach64_private_t * dev_priv)
list_del(ptr);
list_add_tail(ptr, &dev_priv->free_list);
DRM_DEBUG
- ("%s: freed processed buffer (head=%d tail=%d "
+ ("freed processed buffer (head=%d tail=%d "
"buf ring ofs=%d).\n",
- __FUNCTION__, head, tail, ofs);
+ head, tail, ofs);
return 0;
}
}
@@ -1378,7 +1619,7 @@ static int mach64_do_reclaim_completed(drm_mach64_private_t * dev_priv)
return 1;
}
-struct drm_buf *mach64_freelist_get(drm_mach64_private_t * dev_priv)
+struct drm_buf *mach64_freelist_get(drm_mach64_private_t *dev_priv)
{
drm_mach64_descriptor_ring_t *ring = &dev_priv->ring;
drm_mach64_freelist_t *entry;
@@ -1424,7 +1665,7 @@ struct drm_buf *mach64_freelist_get(drm_mach64_private_t * dev_priv)
return entry->buf;
}
-int mach64_freelist_put(drm_mach64_private_t * dev_priv, struct drm_buf * copy_buf)
+int mach64_freelist_put(drm_mach64_private_t *dev_priv, struct drm_buf *copy_buf)
{
struct list_head *ptr;
drm_mach64_freelist_t *entry;
@@ -1433,8 +1674,7 @@ int mach64_freelist_put(drm_mach64_private_t * dev_priv, struct drm_buf * copy_b
list_for_each(ptr, &dev_priv->pending) {
entry = list_entry(ptr, drm_mach64_freelist_t, list);
if (copy_buf == entry->buf) {
- DRM_ERROR("%s: Trying to release a pending buf\n",
- __FUNCTION__);
+ DRM_ERROR("Trying to release a pending buf\n");
return -EFAULT;
}
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-01 04:49:56 +0000