RADEON: add get_param for number of GB pipes

4 files changed, 11 insertions, 7 deletions

diff --git a/shared-core/radeon_cp.c b/shared-core/radeon_cp.c
index 33c928b1..bd54ef6e 100644
--- a/shared-core/radeon_cp.c
+++ b/shared-core/radeon_cp.c
@@ -16310,28 +16310,27 @@ static int radeon_do_wait_for_idle(drm_radeon_private_t * dev_priv)
 
 static void radeon_init_pipes(drm_radeon_private_t * dev_priv)
 {
-	int num_gb_pipes;
 	uint32_t gb_tile_config, gb_pipe_sel = 0;
 
 	/* RS4xx/RS6xx/R4xx/R5xx */
 	if ((dev_priv->flags & RADEON_FAMILY_MASK) >= CHIP_R420) {
 		gb_pipe_sel = RADEON_READ(R400_GB_PIPE_SELECT);
-		num_gb_pipes = ((gb_pipe_sel >> 12) & 0x3) + 1;
+		dev_priv->num_gb_pipes = ((gb_pipe_sel >> 12) & 0x3) + 1;
 	} else {
 		/* R3xx */
 		if (((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_R300) ||
 		    ((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_R350)) {
-			num_gb_pipes = 2;
+			dev_priv->num_gb_pipes = 2;
 		} else {
 			/* R3Vxx */
-			num_gb_pipes = 1;
+			dev_priv->num_gb_pipes = 1;
 		}
 	}
-	DRM_INFO("Num pipes: %d\n", num_gb_pipes);
+	DRM_INFO("Num pipes: %d\n", dev_priv->num_gb_pipes);
 
 	gb_tile_config = (R300_ENABLE_TILING | R300_TILE_SIZE_16 /*| R300_SUBPIXEL_1_16*/);
 
-	switch(num_gb_pipes) {
+	switch(dev_priv->num_gb_pipes) {
 	case 2: gb_tile_config |= R300_PIPE_COUNT_R300; break;
 	case 3: gb_tile_config |= R300_PIPE_COUNT_R420_3P; break;
 	case 4: gb_tile_config |= R300_PIPE_COUNT_R420; break;
@@ -16341,7 +16340,7 @@ static void radeon_init_pipes(drm_radeon_private_t * dev_priv)
 
 	if ((dev_priv->flags & RADEON_FAMILY_MASK) >= CHIP_RV515) {
 		RADEON_WRITE_PLL(R500_DYN_SCLK_PWMEM_PIPE, (1 | ((gb_pipe_sel >> 8) & 0xf) << 4));
-		RADEON_WRITE(R500_SU_REG_DEST, ((1 << num_gb_pipes) - 1));
+		RADEON_WRITE(R500_SU_REG_DEST, ((1 << dev_priv->num_gb_pipes) - 1));
 	}
 	RADEON_WRITE(R300_GB_TILE_CONFIG, gb_tile_config);
 	radeon_do_wait_for_idle(dev_priv);
diff --git a/shared-core/radeon_drm.h b/shared-core/radeon_drm.h
index 67c35585..ffaa46e4 100644
--- a/shared-core/radeon_drm.h
+++ b/shared-core/radeon_drm.h
@@ -676,6 +676,7 @@ typedef struct drm_radeon_indirect {
 #define RADEON_PARAM_CARD_TYPE             12
 #define RADEON_PARAM_VBLANK_CRTC           13   /* VBLANK CRTC */
 #define RADEON_PARAM_FB_LOCATION           14   /* FB location */
+#define RADEON_PARAM_NUM_GB_PIPES          15   /* num GB pipes */
 
 typedef struct drm_radeon_getparam {
 	int param;
diff --git a/shared-core/radeon_drv.h b/shared-core/radeon_drv.h
index c478f542..d4a298e4 100644
--- a/shared-core/radeon_drv.h
+++ b/shared-core/radeon_drv.h
@@ -314,6 +314,7 @@ typedef struct drm_radeon_private {
 	uint32_t flags;		/* see radeon_chip_flags */
 	unsigned long fb_aper_offset;
 
+	int num_gb_pipes;
 } drm_radeon_private_t;
 
 typedef struct drm_radeon_buf_priv {
diff --git a/shared-core/radeon_state.c b/shared-core/radeon_state.c
index 8489549c..c50ac248 100644
--- a/shared-core/radeon_state.c
+++ b/shared-core/radeon_state.c
@@ -3091,6 +3091,9 @@ static int radeon_cp_getparam(struct drm_device *dev, void *data, struct drm_fil
 	case RADEON_PARAM_FB_LOCATION:
 		value = radeon_read_fb_location(dev_priv);
 		break;
+	case RADEON_PARAM_NUM_GB_PIPES:
+		value = dev_priv->num_gb_pipes;
+		break;
 	default:
 		DRM_DEBUG( "Invalid parameter %d\n", param->param );
 		return -EINVAL;