1 files changed, 28 insertions, 2 deletions

diff --git a/drivers/irqchip/irq-gic-v3-its.c b/drivers/irqchip/irq-gic-v3-its.c
index 4aedbdc62aa0..6cc57dc142df 100644
--- a/drivers/irqchip/irq-gic-v3-its.c
+++ b/drivers/irqchip/irq-gic-v3-its.c
@@ -109,6 +109,7 @@ struct its_node {
 	unsigned int		msi_domain_flags;
 	u32			pre_its_base; /* for Socionext Synquacer */
 	bool			is_v4;
+	int			vlpi_redist_offset;
 };
 
 #define ITS_ITT_ALIGN		SZ_256
@@ -558,13 +559,15 @@ static struct its_vpe *its_build_vmapp_cmd(struct its_node *its,
 					   struct its_cmd_desc *desc)
 {
 	unsigned long vpt_addr;
+	u64 target;
 
 	vpt_addr = virt_to_phys(page_address(desc->its_vmapp_cmd.vpe->vpt_page));
+	target = desc->its_vmapp_cmd.col->target_address + its->vlpi_redist_offset;
 
 	its_encode_cmd(cmd, GITS_CMD_VMAPP);
 	its_encode_vpeid(cmd, desc->its_vmapp_cmd.vpe->vpe_id);
 	its_encode_valid(cmd, desc->its_vmapp_cmd.valid);
-	its_encode_target(cmd, desc->its_vmapp_cmd.col->target_address);
+	its_encode_target(cmd, target);
 	its_encode_vpt_addr(cmd, vpt_addr);
 	its_encode_vpt_size(cmd, LPI_NRBITS - 1);
 
@@ -623,11 +626,14 @@ static struct its_vpe *its_build_vmovp_cmd(struct its_node *its,
 					   struct its_cmd_block *cmd,
 					   struct its_cmd_desc *desc)
 {
+	u64 target;
+
+	target = desc->its_vmovp_cmd.col->target_address + its->vlpi_redist_offset;
 	its_encode_cmd(cmd, GITS_CMD_VMOVP);
 	its_encode_seq_num(cmd, desc->its_vmovp_cmd.seq_num);
 	its_encode_its_list(cmd, desc->its_vmovp_cmd.its_list);
 	its_encode_vpeid(cmd, desc->its_vmovp_cmd.vpe->vpe_id);
-	its_encode_target(cmd, desc->its_vmovp_cmd.col->target_address);
+	its_encode_target(cmd, target);
 
 	its_fixup_cmd(cmd);
 
@@ -2834,6 +2840,18 @@ static bool __maybe_unused its_enable_quirk_socionext_synquacer(void *data)
 	return false;
 }
 
+static bool __maybe_unused its_enable_quirk_hip07_161600802(void *data)
+{
+	struct its_node *its = data;
+
+	/*
+	 * Hip07 insists on using the wrong address for the VLPI
+	 * page. Trick it into doing the right thing...
+	 */
+	its->vlpi_redist_offset = SZ_128K;
+	return true;
+}
+
 static const struct gic_quirk its_quirks[] = {
 #ifdef CONFIG_CAVIUM_ERRATUM_22375
 	{
@@ -2872,6 +2890,14 @@ static const struct gic_quirk its_quirks[] = {
 		.init	= its_enable_quirk_socionext_synquacer,
 	},
 #endif
+#ifdef CONFIG_HISILICON_ERRATUM_161600802
+	{
+		.desc	= "ITS: Hip07 erratum 161600802",
+		.iidr	= 0x00000004,
+		.mask	= 0xffffffff,
+		.init	= its_enable_quirk_hip07_161600802,
+	},
+#endif
 	{
 	}
 };