From 576cc458a64673ecf3fa7f1bab751e52fd939071 Mon Sep 17 00:00:00 2001 From: Roland Scheidegger Date: Thu, 7 Feb 2008 14:59:24 +1000 Subject: [PATCH] radeon: setup the ring buffer fetcher to be less agressive. Signed-off-by: Dave Airlie --- drivers/char/drm/radeon_cp.c | 15 +++++++++++-- drivers/char/drm/radeon_drv.h | 50 ++++++++++++++++++++++++++++++++++++++++++- 2 files changed, 62 insertions(+), 3 deletions(-) diff --git a/drivers/char/drm/radeon_cp.c b/drivers/char/drm/radeon_cp.c index e16294c..020323b 100644 --- a/drivers/char/drm/radeon_cp.c +++ b/drivers/char/drm/radeon_cp.c @@ -1190,9 +1190,15 @@ static void radeon_cp_init_ring_buffer(struct drm_device * dev, /* Set ring buffer size */ #ifdef __BIG_ENDIAN RADEON_WRITE(RADEON_CP_RB_CNTL, - dev_priv->ring.size_l2qw | RADEON_BUF_SWAP_32BIT); + RADEON_BUF_SWAP_32BIT | + (dev_priv->ring.fetch_size_l2ow << 18) | + (dev_priv->ring.rptr_update_l2qw << 8) | + dev_priv->ring.size_l2qw); #else - RADEON_WRITE(RADEON_CP_RB_CNTL, dev_priv->ring.size_l2qw); + RADEON_WRITE(RADEON_CP_RB_CNTL, + (dev_priv->ring.fetch_size_l2ow << 18) | + (dev_priv->ring.rptr_update_l2qw << 8) | + dev_priv->ring.size_l2qw); #endif /* Start with assuming that writeback doesn't work */ @@ -1663,6 +1669,11 @@ static int radeon_do_init_cp(struct drm_device * dev, drm_radeon_init_t * init) dev_priv->ring.size = init->ring_size; dev_priv->ring.size_l2qw = drm_order(init->ring_size / 8); + dev_priv->ring.rptr_update = /* init->rptr_update */ 4096; + dev_priv->ring.rptr_update_l2qw = drm_order( /* init->rptr_update */ 4096 / 8); + + dev_priv->ring.fetch_size = /* init->fetch_size */ 32; + dev_priv->ring.fetch_size_l2ow = drm_order( /* init->fetch_size */ 32 / 16); dev_priv->ring.tail_mask = (dev_priv->ring.size / sizeof(u32)) - 1; dev_priv->ring.high_mark = RADEON_RING_HIGH_MARK; diff --git a/drivers/char/drm/radeon_drv.h b/drivers/char/drm/radeon_drv.h index 8ce4940..443a895 100644 --- a/drivers/char/drm/radeon_drv.h +++ b/drivers/char/drm/radeon_drv.h @@ -166,6 +166,12 @@ typedef struct drm_radeon_ring_buffer { int size; int size_l2qw; + int rptr_update; /* Double Words */ + int rptr_update_l2qw; /* log2 Quad Words */ + + int fetch_size; /* Double Words */ + int fetch_size_l2ow; /* log2 Oct Words */ + u32 tail; u32 tail_mask; int space; @@ -615,9 +621,51 @@ extern int r300_do_cp_cmdbuf(struct drm_device * dev, # define RADEON_SOFT_RESET_E2 (1 << 5) # define RADEON_SOFT_RESET_RB (1 << 6) # define RADEON_SOFT_RESET_HDP (1 << 7) +/* + * 6:0 Available slots in the FIFO + * 8 Host Interface active + * 9 CP request active + * 10 FIFO request active + * 11 Host Interface retry active + * 12 CP retry active + * 13 FIFO retry active + * 14 FIFO pipeline busy + * 15 Event engine busy + * 16 CP command stream busy + * 17 2D engine busy + * 18 2D portion of render backend busy + * 20 3D setup engine busy + * 26 GA engine busy + * 27 CBA 2D engine busy + * 31 2D engine busy or 3D engine busy or FIFO not empty or CP busy or + * command stream queue not empty or Ring Buffer not empty + */ #define RADEON_RBBM_STATUS 0x0e40 +/* Same as the previous RADEON_RBBM_STATUS; this is a mirror of that register. */ +/* #define RADEON_RBBM_STATUS 0x1740 */ +/* bits 6:0 are dword slots available in the cmd fifo */ # define RADEON_RBBM_FIFOCNT_MASK 0x007f -# define RADEON_RBBM_ACTIVE (1 << 31) +# define RADEON_HIRQ_ON_RBB (1 << 8) +# define RADEON_CPRQ_ON_RBB (1 << 9) +# define RADEON_CFRQ_ON_RBB (1 << 10) +# define RADEON_HIRQ_IN_RTBUF (1 << 11) +# define RADEON_CPRQ_IN_RTBUF (1 << 12) +# define RADEON_CFRQ_IN_RTBUF (1 << 13) +# define RADEON_PIPE_BUSY (1 << 14) +# define RADEON_ENG_EV_BUSY (1 << 15) +# define RADEON_CP_CMDSTRM_BUSY (1 << 16) +# define RADEON_E2_BUSY (1 << 17) +# define RADEON_RB2D_BUSY (1 << 18) +# define RADEON_RB3D_BUSY (1 << 19) /* not used on r300 */ +# define RADEON_VAP_BUSY (1 << 20) +# define RADEON_RE_BUSY (1 << 21) /* not used on r300 */ +# define RADEON_TAM_BUSY (1 << 22) /* not used on r300 */ +# define RADEON_TDM_BUSY (1 << 23) /* not used on r300 */ +# define RADEON_PB_BUSY (1 << 24) /* not used on r300 */ +# define RADEON_TIM_BUSY (1 << 25) /* not used on r300 */ +# define RADEON_GA_BUSY (1 << 26) +# define RADEON_CBA2D_BUSY (1 << 27) +# define RADEON_RBBM_ACTIVE (1 << 31) #define RADEON_RE_LINE_PATTERN 0x1cd0 #define RADEON_RE_MISC 0x26c4 #define RADEON_RE_TOP_LEFT 0x26c0 -- 2.7.4