Merge tag 'drm-intel-fixes-2013-11-07' of git://people.freedesktop.org/~danvet/drm-intel into drm-next

Bit a bit -fixes pull request in the merge window than usual dua to two
feauture-y things:
- Display CRCs are now enabled on all platforms, including the odd DP case
  on gm45/vlv. Since this is a testing-only feature it should ever hurt,
  but I figured it'll help with regression-testing -fixes. So I left it
  in and didn't postpone it to 3.14.
- Display power well refactoring from Imre. Would have caused major pain
  conflict with the bdw stage 1 patches if I'd postpone this to -next.
  It's only an relatively small interface rework, so shouldn't cause pain.
  It's also been in my tree since almost 3 weeks already.

That accounts for about two thirds of the pull, otherwise just bugfixes:
- vlv backlight fix from Jesse/Jani
- vlv vblank timestamp fix from Jesse
- improved edp detection through vbt from Ville (fixes a vlv issue)
- eDP vdd fix from Paulo
- fixes for dvo lvds on i830M
- a few smaller things all over

Note: This contains a backmerge of v3.12. Since the -internal branch
always applied on top of -nightly I need that unified base to merge bdw
patches. So you'll get a conflict with radeon connector props when pulling
this (and nouveau/master will also conflict a bit when Ben doesn't
rebase). The backmerge itself only had conflicts in drm/i915.

There's also a tiny conflict between Jani's backlight fix and your sysfs
lifetime fix in drm-next.

* tag 'drm-intel-fixes-2013-11-07' of git://people.freedesktop.org/~danvet/drm-intel: (940 commits)
  drm/i915/vlv: use per-pipe backlight controls v2
  drm/i915: make backlight functions take a connector
  drm/i915: move opregion asle request handling to a work queue
  drm/i915/vlv: use PIPE_START_VBLANK interrupts on VLV
  drm/i915: Make intel_dp_is_edp() less specific
  drm/i915: Give names to the VBT child device type bits
  drm/i915/vlv: enable HDA display audio for Valleyview2
  drm/i915/dvo: call ->mode_set callback only when the port is running
  drm/i915: avoid unclaimed registers when capturing the error state
  drm/i915: Enable DP port CRC for the "auto" source on g4x/vlv
  drm/i915: scramble reset support for DP port CRC on vlv
  drm/i915: scramble reset support for DP port CRC on g4x
  drm/i916: add "auto" pipe CRC source
  ...

Conflicts:
	MAINTAINERS
	drivers/gpu/drm/i915/intel_panel.c
	drivers/gpu/drm/nouveau/core/subdev/mc/base.c
	drivers/gpu/drm/radeon/atombios_encoders.c
	drivers/gpu/drm/radeon/radeon_connectors.c

1 files changed, 39 insertions, 18 deletions

diff --git a/drivers/target/target_core_xcopy.c b/drivers/target/target_core_xcopy.c
index 4d22e7d..474cd44 100644
--- a/drivers/target/target_core_xcopy.c
+++ b/drivers/target/target_core_xcopy.c
@@ -82,6 +82,9 @@ static int target_xcopy_locate_se_dev_e4(struct se_cmd *se_cmd, struct xcopy_op
 	mutex_lock(&g_device_mutex);
 	list_for_each_entry(se_dev, &g_device_list, g_dev_node) {
 
+		if (!se_dev->dev_attrib.emulate_3pc)
+			continue;
+
 		memset(&tmp_dev_wwn[0], 0, XCOPY_NAA_IEEE_REGEX_LEN);
 		target_xcopy_gen_naa_ieee(se_dev, &tmp_dev_wwn[0]);
 
@@ -298,8 +301,8 @@ static int target_xcopy_parse_segdesc_02(struct se_cmd *se_cmd, struct xcopy_op
 		(unsigned long long)xop->dst_lba);
 
 	if (dc != 0) {
-		xop->dbl = (desc[29] << 16) & 0xff;
-		xop->dbl |= (desc[30] << 8) & 0xff;
+		xop->dbl = (desc[29] & 0xff) << 16;
+		xop->dbl |= (desc[30] & 0xff) << 8;
 		xop->dbl |= desc[31] & 0xff;
 
 		pr_debug("XCOPY seg desc 0x02: DC=1 w/ dbl: %u\n", xop->dbl);
@@ -357,6 +360,7 @@ struct xcopy_pt_cmd {
 	struct se_cmd se_cmd;
 	struct xcopy_op *xcopy_op;
 	struct completion xpt_passthrough_sem;
+	unsigned char sense_buffer[TRANSPORT_SENSE_BUFFER];
 };
 
 static struct se_port xcopy_pt_port;
@@ -675,7 +679,8 @@ static int target_xcopy_issue_pt_cmd(struct xcopy_pt_cmd *xpt_cmd)
 
 	pr_debug("target_xcopy_issue_pt_cmd(): SCSI status: 0x%02x\n",
 			se_cmd->scsi_status);
-	return 0;
+
+	return (se_cmd->scsi_status) ? -EINVAL : 0;
 }
 
 static int target_xcopy_read_source(
@@ -708,7 +713,7 @@ static int target_xcopy_read_source(
 		(unsigned long long)src_lba, src_sectors, length);
 
 	transport_init_se_cmd(se_cmd, &xcopy_pt_tfo, NULL, length,
-				DMA_FROM_DEVICE, 0, NULL);
+			      DMA_FROM_DEVICE, 0, &xpt_cmd->sense_buffer[0]);
 	xop->src_pt_cmd = xpt_cmd;
 
 	rc = target_xcopy_setup_pt_cmd(xpt_cmd, xop, src_dev, &cdb[0],
@@ -768,7 +773,7 @@ static int target_xcopy_write_destination(
 		(unsigned long long)dst_lba, dst_sectors, length);
 
 	transport_init_se_cmd(se_cmd, &xcopy_pt_tfo, NULL, length,
-				DMA_TO_DEVICE, 0, NULL);
+			      DMA_TO_DEVICE, 0, &xpt_cmd->sense_buffer[0]);
 	xop->dst_pt_cmd = xpt_cmd;
 
 	rc = target_xcopy_setup_pt_cmd(xpt_cmd, xop, dst_dev, &cdb[0],
@@ -884,30 +889,42 @@ out:
 
 sense_reason_t target_do_xcopy(struct se_cmd *se_cmd)
 {
+	struct se_device *dev = se_cmd->se_dev;
 	struct xcopy_op *xop = NULL;
 	unsigned char *p = NULL, *seg_desc;
 	unsigned int list_id, list_id_usage, sdll, inline_dl, sa;
+	sense_reason_t ret = TCM_INVALID_PARAMETER_LIST;
 	int rc;
 	unsigned short tdll;
 
+	if (!dev->dev_attrib.emulate_3pc) {
+		pr_err("EXTENDED_COPY operation explicitly disabled\n");
+		return TCM_UNSUPPORTED_SCSI_OPCODE;
+	}
+
 	sa = se_cmd->t_task_cdb[1] & 0x1f;
 	if (sa != 0x00) {
 		pr_err("EXTENDED_COPY(LID4) not supported\n");
 		return TCM_UNSUPPORTED_SCSI_OPCODE;
 	}
 
+	xop = kzalloc(sizeof(struct xcopy_op), GFP_KERNEL);
+	if (!xop) {
+		pr_err("Unable to allocate xcopy_op\n");
+		return TCM_OUT_OF_RESOURCES;
+	}
+	xop->xop_se_cmd = se_cmd;
+
 	p = transport_kmap_data_sg(se_cmd);
 	if (!p) {
 		pr_err("transport_kmap_data_sg() failed in target_do_xcopy\n");
+		kfree(xop);
 		return TCM_OUT_OF_RESOURCES;
 	}
 
 	list_id = p[0];
-	if (list_id != 0x00) {
-		pr_err("XCOPY with non zero list_id: 0x%02x\n", list_id);
-		goto out;
-	}
-	list_id_usage = (p[1] & 0x18);
+	list_id_usage = (p[1] & 0x18) >> 3;
+
 	/*
 	 * Determine TARGET DESCRIPTOR LIST LENGTH + SEGMENT DESCRIPTOR LIST LENGTH
 	 */
@@ -920,13 +937,6 @@ sense_reason_t target_do_xcopy(struct se_cmd *se_cmd)
 		goto out;
 	}
 
-	xop = kzalloc(sizeof(struct xcopy_op), GFP_KERNEL);
-	if (!xop) {
-		pr_err("Unable to allocate xcopy_op\n");
-		goto out;
-	}
-	xop->xop_se_cmd = se_cmd;
-
 	pr_debug("Processing XCOPY with list_id: 0x%02x list_id_usage: 0x%02x"
 		" tdll: %hu sdll: %u inline_dl: %u\n", list_id, list_id_usage,
 		tdll, sdll, inline_dl);
@@ -935,6 +945,17 @@ sense_reason_t target_do_xcopy(struct se_cmd *se_cmd)
 	if (rc <= 0)
 		goto out;
 
+	if (xop->src_dev->dev_attrib.block_size !=
+	    xop->dst_dev->dev_attrib.block_size) {
+		pr_err("XCOPY: Non matching src_dev block_size: %u + dst_dev"
+		       " block_size: %u currently unsupported\n",
+			xop->src_dev->dev_attrib.block_size,
+			xop->dst_dev->dev_attrib.block_size);
+		xcopy_pt_undepend_remotedev(xop);
+		ret = TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE;
+		goto out;
+	}
+
 	pr_debug("XCOPY: Processed %d target descriptors, length: %u\n", rc,
 				rc * XCOPY_TARGET_DESC_LEN);
 	seg_desc = &p[16];
@@ -957,7 +978,7 @@ out:
 	if (p)
 		transport_kunmap_data_sg(se_cmd);
 	kfree(xop);
-	return TCM_INVALID_CDB_FIELD;
+	return ret;
 }
 
 static sense_reason_t target_rcr_operating_parameters(struct se_cmd *se_cmd)