Merge tag 'char-misc-5.3-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc

Pull char/misc driver fixes from Greg KH:
 "Here are some small char and misc driver fixes for 5.3-rc5.

  These are two different subsystems needing some fixes, the habanalabs
  driver which is has some more big endian fixes for problems found. The
  other are some small soundwire fixes, including some Kconfig
  dependencies needed to resolve reported build errors.

  All of these have been in linux-next this week with no reported
  issues"

* tag 'char-misc-5.3-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc:
  misc: xilinx-sdfec: fix dependency and build error
  habanalabs: fix device IRQ unmasking for BE host
  habanalabs: fix endianness handling for internal QMAN submission
  habanalabs: fix completion queue handling when host is BE
  habanalabs: fix endianness handling for packets from user
  habanalabs: fix DRAM usage accounting on context tear down
  habanalabs: Avoid double free in error flow
  soundwire: fix regmap dependencies and align with other serial links
  soundwire: cadence_master: fix definitions for INTSTAT0/1
  soundwire: cadence_master: fix register definition for SLAVE_STATE

1 files changed, 47 insertions, 25 deletions

diff --git a/drivers/misc/habanalabs/goya/goya.c b/drivers/misc/habanalabs/goya/goya.c
index a0e181714891..271c5c8f53b4 100644
--- a/drivers/misc/habanalabs/goya/goya.c
+++ b/drivers/misc/habanalabs/goya/goya.c
@@ -2729,9 +2729,10 @@ void goya_ring_doorbell(struct hl_device *hdev, u32 hw_queue_id, u32 pi)
 				GOYA_ASYNC_EVENT_ID_PI_UPDATE);
 }
 
-void goya_flush_pq_write(struct hl_device *hdev, u64 *pq, u64 exp_val)
+void goya_pqe_write(struct hl_device *hdev, __le64 *pqe, struct hl_bd *bd)
 {
-	/* Not needed in Goya */
+	/* The QMANs are on the SRAM so need to copy to IO space */
+	memcpy_toio((void __iomem *) pqe, bd, sizeof(struct hl_bd));
 }
 
 static void *goya_dma_alloc_coherent(struct hl_device *hdev, size_t size,
@@ -3313,9 +3314,11 @@ static int goya_validate_dma_pkt_no_mmu(struct hl_device *hdev,
 	int rc;
 
 	dev_dbg(hdev->dev, "DMA packet details:\n");
-	dev_dbg(hdev->dev, "source == 0x%llx\n", user_dma_pkt->src_addr);
-	dev_dbg(hdev->dev, "destination == 0x%llx\n", user_dma_pkt->dst_addr);
-	dev_dbg(hdev->dev, "size == %u\n", user_dma_pkt->tsize);
+	dev_dbg(hdev->dev, "source == 0x%llx\n",
+		le64_to_cpu(user_dma_pkt->src_addr));
+	dev_dbg(hdev->dev, "destination == 0x%llx\n",
+		le64_to_cpu(user_dma_pkt->dst_addr));
+	dev_dbg(hdev->dev, "size == %u\n", le32_to_cpu(user_dma_pkt->tsize));
 
 	ctl = le32_to_cpu(user_dma_pkt->ctl);
 	user_dir = (ctl & GOYA_PKT_LIN_DMA_CTL_DMA_DIR_MASK) >>
@@ -3344,9 +3347,11 @@ static int goya_validate_dma_pkt_mmu(struct hl_device *hdev,
 				struct packet_lin_dma *user_dma_pkt)
 {
 	dev_dbg(hdev->dev, "DMA packet details:\n");
-	dev_dbg(hdev->dev, "source == 0x%llx\n", user_dma_pkt->src_addr);
-	dev_dbg(hdev->dev, "destination == 0x%llx\n", user_dma_pkt->dst_addr);
-	dev_dbg(hdev->dev, "size == %u\n", user_dma_pkt->tsize);
+	dev_dbg(hdev->dev, "source == 0x%llx\n",
+		le64_to_cpu(user_dma_pkt->src_addr));
+	dev_dbg(hdev->dev, "destination == 0x%llx\n",
+		le64_to_cpu(user_dma_pkt->dst_addr));
+	dev_dbg(hdev->dev, "size == %u\n", le32_to_cpu(user_dma_pkt->tsize));
 
 	/*
 	 * WA for HW-23.
@@ -3386,7 +3391,8 @@ static int goya_validate_wreg32(struct hl_device *hdev,
 
 	dev_dbg(hdev->dev, "WREG32 packet details:\n");
 	dev_dbg(hdev->dev, "reg_offset == 0x%x\n", reg_offset);
-	dev_dbg(hdev->dev, "value      == 0x%x\n", wreg_pkt->value);
+	dev_dbg(hdev->dev, "value      == 0x%x\n",
+		le32_to_cpu(wreg_pkt->value));
 
 	if (reg_offset != (mmDMA_CH_0_WR_COMP_ADDR_LO & 0x1FFF)) {
 		dev_err(hdev->dev, "WREG32 packet with illegal address 0x%x\n",
@@ -3428,12 +3434,13 @@ static int goya_validate_cb(struct hl_device *hdev,
 	while (cb_parsed_length < parser->user_cb_size) {
 		enum packet_id pkt_id;
 		u16 pkt_size;
-		void *user_pkt;
+		struct goya_packet *user_pkt;
 
-		user_pkt = (void *) (uintptr_t)
+		user_pkt = (struct goya_packet *) (uintptr_t)
 			(parser->user_cb->kernel_address + cb_parsed_length);
 
-		pkt_id = (enum packet_id) (((*(u64 *) user_pkt) &
+		pkt_id = (enum packet_id) (
+				(le64_to_cpu(user_pkt->header) &
 				PACKET_HEADER_PACKET_ID_MASK) >>
 					PACKET_HEADER_PACKET_ID_SHIFT);
 
@@ -3453,7 +3460,8 @@ static int goya_validate_cb(struct hl_device *hdev,
 			 * need to validate here as well because patch_cb() is
 			 * not called in MMU path while this function is called
 			 */
-			rc = goya_validate_wreg32(hdev, parser, user_pkt);
+			rc = goya_validate_wreg32(hdev,
+				parser, (struct packet_wreg32 *) user_pkt);
 			break;
 
 		case PACKET_WREG_BULK:
@@ -3481,10 +3489,10 @@ static int goya_validate_cb(struct hl_device *hdev,
 		case PACKET_LIN_DMA:
 			if (is_mmu)
 				rc = goya_validate_dma_pkt_mmu(hdev, parser,
-						user_pkt);
+					(struct packet_lin_dma *) user_pkt);
 			else
 				rc = goya_validate_dma_pkt_no_mmu(hdev, parser,
-						user_pkt);
+					(struct packet_lin_dma *) user_pkt);
 			break;
 
 		case PACKET_MSG_LONG:
@@ -3657,15 +3665,16 @@ static int goya_patch_cb(struct hl_device *hdev,
 		enum packet_id pkt_id;
 		u16 pkt_size;
 		u32 new_pkt_size = 0;
-		void *user_pkt, *kernel_pkt;
+		struct goya_packet *user_pkt, *kernel_pkt;
 
-		user_pkt = (void *) (uintptr_t)
+		user_pkt = (struct goya_packet *) (uintptr_t)
 			(parser->user_cb->kernel_address + cb_parsed_length);
-		kernel_pkt = (void *) (uintptr_t)
+		kernel_pkt = (struct goya_packet *) (uintptr_t)
 			(parser->patched_cb->kernel_address +
 					cb_patched_cur_length);
 
-		pkt_id = (enum packet_id) (((*(u64 *) user_pkt) &
+		pkt_id = (enum packet_id) (
+				(le64_to_cpu(user_pkt->header) &
 				PACKET_HEADER_PACKET_ID_MASK) >>
 					PACKET_HEADER_PACKET_ID_SHIFT);
 
@@ -3680,15 +3689,18 @@ static int goya_patch_cb(struct hl_device *hdev,
 
 		switch (pkt_id) {
 		case PACKET_LIN_DMA:
-			rc = goya_patch_dma_packet(hdev, parser, user_pkt,
-						kernel_pkt, &new_pkt_size);
+			rc = goya_patch_dma_packet(hdev, parser,
+					(struct packet_lin_dma *) user_pkt,
+					(struct packet_lin_dma *) kernel_pkt,
+					&new_pkt_size);
 			cb_patched_cur_length += new_pkt_size;
 			break;
 
 		case PACKET_WREG_32:
 			memcpy(kernel_pkt, user_pkt, pkt_size);
 			cb_patched_cur_length += pkt_size;
-			rc = goya_validate_wreg32(hdev, parser, kernel_pkt);
+			rc = goya_validate_wreg32(hdev, parser,
+					(struct packet_wreg32 *) kernel_pkt);
 			break;
 
 		case PACKET_WREG_BULK:
@@ -4352,6 +4364,8 @@ static int goya_unmask_irq_arr(struct hl_device *hdev, u32 *irq_arr,
 	size_t total_pkt_size;
 	long result;
 	int rc;
+	int irq_num_entries, irq_arr_index;
+	__le32 *goya_irq_arr;
 
 	total_pkt_size = sizeof(struct armcp_unmask_irq_arr_packet) +
 			irq_arr_size;
@@ -4369,8 +4383,16 @@ static int goya_unmask_irq_arr(struct hl_device *hdev, u32 *irq_arr,
 	if (!pkt)
 		return -ENOMEM;
 
-	pkt->length = cpu_to_le32(irq_arr_size / sizeof(irq_arr[0]));
-	memcpy(&pkt->irqs, irq_arr, irq_arr_size);
+	irq_num_entries = irq_arr_size / sizeof(irq_arr[0]);
+	pkt->length = cpu_to_le32(irq_num_entries);
+
+	/* We must perform any necessary endianness conversation on the irq
+	 * array being passed to the goya hardware
+	 */
+	for (irq_arr_index = 0, goya_irq_arr = (__le32 *) &pkt->irqs;
+			irq_arr_index < irq_num_entries ; irq_arr_index++)
+		goya_irq_arr[irq_arr_index] =
+				cpu_to_le32(irq_arr[irq_arr_index]);
 
 	pkt->armcp_pkt.ctl = cpu_to_le32(ARMCP_PACKET_UNMASK_RAZWI_IRQ_ARRAY <<
 						ARMCP_PKT_CTL_OPCODE_SHIFT);
@@ -5042,7 +5064,7 @@ static const struct hl_asic_funcs goya_funcs = {
 	.resume = goya_resume,
 	.cb_mmap = goya_cb_mmap,
 	.ring_doorbell = goya_ring_doorbell,
-	.flush_pq_write = goya_flush_pq_write,
+	.pqe_write = goya_pqe_write,
 	.asic_dma_alloc_coherent = goya_dma_alloc_coherent,
 	.asic_dma_free_coherent = goya_dma_free_coherent,
 	.get_int_queue_base = goya_get_int_queue_base,