X-Git-Url: http://git.rot13.org/?a=blobdiff_plain;f=drivers%2Fchar%2Fdrm%2Fr300_cmdbuf.c;h=26bdf2ca59d759cd581a6a301660c88f0a0364f1;hb=4854c7b27f0975a2b629f35ea3996d2968eb7c4f;hp=c08fa5076f05c50795c507b9e8e157407db19a98;hpb=dc5cdd8ec146a60152f2264c8fe920ca5ecc71ea;p=powerpc.git

diff --git a/drivers/char/drm/r300_cmdbuf.c b/drivers/char/drm/r300_cmdbuf.c
index c08fa5076f..26bdf2ca59 100644
--- a/drivers/char/drm/r300_cmdbuf.c
+++ b/drivers/char/drm/r300_cmdbuf.c
@@ -214,13 +214,13 @@ void r300_init_reg_flags(void)
 	ADD_RANGE(0x4F54, 1);
 
 	ADD_RANGE(R300_TX_FILTER_0, 16);
-	ADD_RANGE(R300_TX_UNK1_0, 16);
+	ADD_RANGE(R300_TX_FILTER1_0, 16);
 	ADD_RANGE(R300_TX_SIZE_0, 16);
 	ADD_RANGE(R300_TX_FORMAT_0, 16);
 	ADD_RANGE(R300_TX_PITCH_0, 16);
 	/* Texture offset is dangerous and needs more checking */
 	ADD_RANGE_MARK(R300_TX_OFFSET_0, 16, MARK_CHECK_OFFSET);
-	ADD_RANGE(R300_TX_UNK4_0, 16);
+	ADD_RANGE(R300_TX_CHROMA_KEY_0, 16);
 	ADD_RANGE(R300_TX_BORDER_COLOR_0, 16);
 
 	/* Sporadic registers used as primitives are emitted */
@@ -242,8 +242,10 @@ static __inline__ int r300_check_range(unsigned reg, int count)
 	return 0;
 }
 
-  /* we expect offsets passed to the framebuffer to be either within video memory or
-     within AGP space */
+/*
+ * we expect offsets passed to the framebuffer to be either within video 
+ * memory or within AGP space 
+ */
 static __inline__ int r300_check_offset(drm_radeon_private_t *dev_priv,
 					u32 offset)
 {
@@ -251,11 +253,11 @@ static __inline__ int r300_check_offset(drm_radeon_private_t *dev_priv,
 	   but this value is not being kept.
 	   This code is correct for now (does the same thing as the
 	   code that sets MC_FB_LOCATION) in radeon_cp.c */
-	if ((offset >= dev_priv->fb_location) &&
-	    (offset < dev_priv->gart_vm_start))
+	if (offset >= dev_priv->fb_location &&
+	    offset < (dev_priv->fb_location + dev_priv->fb_size))
 		return 0;
-	if ((offset >= dev_priv->gart_vm_start) &&
-	    (offset < dev_priv->gart_vm_start + dev_priv->gart_size))
+	if (offset >= dev_priv->gart_vm_start &&
+	    offset < (dev_priv->gart_vm_start + dev_priv->gart_size))
 		return 0;
 	return 1;
 }
@@ -490,6 +492,7 @@ static __inline__ int r300_emit_3d_load_vbpntr(drm_radeon_private_t *dev_priv,
 
 	return 0;
 }
+
 static __inline__ int r300_emit_bitblt_multi(drm_radeon_private_t *dev_priv,
 					     drm_radeon_kcmd_buffer_t *cmdbuf)
 {
@@ -701,6 +704,64 @@ static void r300_discard_buffer(drm_device_t * dev, drm_buf_t * buf)
 	buf->used = 0;
 }
 
+static int r300_scratch(drm_radeon_private_t *dev_priv,
+			drm_radeon_kcmd_buffer_t *cmdbuf,
+			drm_r300_cmd_header_t header)
+{
+	u32 *ref_age_base;
+	u32 i, buf_idx, h_pending;
+	RING_LOCALS;
+	
+	if (cmdbuf->bufsz < 
+	    (sizeof(u64) + header.scratch.n_bufs * sizeof(buf_idx))) {
+		return DRM_ERR(EINVAL);
+	}
+	
+	if (header.scratch.reg >= 5) {
+		return DRM_ERR(EINVAL);
+	}
+	
+	dev_priv->scratch_ages[header.scratch.reg]++;
+	
+	ref_age_base =  (u32 *)(unsigned long)*((uint64_t *)cmdbuf->buf);
+	
+	cmdbuf->buf += sizeof(u64);
+	cmdbuf->bufsz -= sizeof(u64);
+	
+	for (i=0; i < header.scratch.n_bufs; i++) {
+		buf_idx = *(u32 *)cmdbuf->buf;
+		buf_idx *= 2; /* 8 bytes per buf */
+		
+		if (DRM_COPY_TO_USER(ref_age_base + buf_idx, &dev_priv->scratch_ages[header.scratch.reg], sizeof(u32))) {
+			return DRM_ERR(EINVAL);
+		}
+					
+		if (DRM_COPY_FROM_USER(&h_pending, ref_age_base + buf_idx + 1, sizeof(u32))) {
+			return DRM_ERR(EINVAL);
+		}
+					
+		if (h_pending == 0) {
+			return DRM_ERR(EINVAL);
+		}
+					
+		h_pending--;
+						
+		if (DRM_COPY_TO_USER(ref_age_base + buf_idx + 1, &h_pending, sizeof(u32))) {
+			return DRM_ERR(EINVAL);
+		}
+					
+		cmdbuf->buf += sizeof(buf_idx);
+		cmdbuf->bufsz -= sizeof(buf_idx);
+	}
+	
+	BEGIN_RING(2);
+	OUT_RING(CP_PACKET0(RADEON_SCRATCH_REG0 + header.scratch.reg * 4, 0));
+	OUT_RING(dev_priv->scratch_ages[header.scratch.reg]);
+	ADVANCE_RING();
+	
+	return 0;
+}
+
 /**
  * Parses and validates a user-supplied command buffer and emits appropriate
  * commands on the DMA ring buffer.
@@ -838,6 +899,15 @@ int r300_do_cp_cmdbuf(drm_device_t *dev,
 			}
 			break;
 
+		case R300_CMD_SCRATCH:
+			DRM_DEBUG("R300_CMD_SCRATCH\n");
+			ret = r300_scratch(dev_priv, cmdbuf, header);
+			if (ret) {
+				DRM_ERROR("r300_scratch failed\n");
+				goto cleanup;
+			}
+			break;
+			
 		default:
 			DRM_ERROR("bad cmd_type %i at %p\n",
 				  header.header.cmd_type,