Update Linux to v5.4.148
Sourced from [1]
[1] https://cdn.kernel.org/pub/linux/kernel/v5.x/linux-5.4.148.tar.gz
Change-Id: Ib3d26c5ba9b022e2e03533005c4fed4d7c30b61b
Signed-off-by: Olivier Deprez <olivier.deprez@arm.com>
diff --git a/drivers/acpi/acpica/hwgpe.c b/drivers/acpi/acpica/hwgpe.c
index 565bd3f..12516b0 100644
--- a/drivers/acpi/acpica/hwgpe.c
+++ b/drivers/acpi/acpica/hwgpe.c
@@ -444,6 +444,65 @@
return (AE_OK);
}
+struct acpi_gpe_block_status_context {
+ struct acpi_gpe_register_info *gpe_skip_register_info;
+ u8 gpe_skip_mask;
+ u8 retval;
+};
+
+/******************************************************************************
+ *
+ * FUNCTION: acpi_hw_get_gpe_block_status
+ *
+ * PARAMETERS: gpe_xrupt_info - GPE Interrupt info
+ * gpe_block - Gpe Block info
+ * context - GPE list walk context data
+ *
+ * RETURN: Success
+ *
+ * DESCRIPTION: Produce a combined GPE status bits mask for the given block.
+ *
+ ******************************************************************************/
+
+static acpi_status
+acpi_hw_get_gpe_block_status(struct acpi_gpe_xrupt_info *gpe_xrupt_info,
+ struct acpi_gpe_block_info *gpe_block,
+ void *context)
+{
+ struct acpi_gpe_block_status_context *c = context;
+ struct acpi_gpe_register_info *gpe_register_info;
+ u64 in_enable, in_status;
+ acpi_status status;
+ u8 ret_mask;
+ u32 i;
+
+ /* Examine each GPE Register within the block */
+
+ for (i = 0; i < gpe_block->register_count; i++) {
+ gpe_register_info = &gpe_block->register_info[i];
+
+ status = acpi_hw_read(&in_enable,
+ &gpe_register_info->enable_address);
+ if (ACPI_FAILURE(status)) {
+ continue;
+ }
+
+ status = acpi_hw_read(&in_status,
+ &gpe_register_info->status_address);
+ if (ACPI_FAILURE(status)) {
+ continue;
+ }
+
+ ret_mask = in_enable & in_status;
+ if (ret_mask && c->gpe_skip_register_info == gpe_register_info) {
+ ret_mask &= ~c->gpe_skip_mask;
+ }
+ c->retval |= ret_mask;
+ }
+
+ return (AE_OK);
+}
+
/******************************************************************************
*
* FUNCTION: acpi_hw_disable_all_gpes
@@ -510,4 +569,45 @@
return_ACPI_STATUS(status);
}
+/******************************************************************************
+ *
+ * FUNCTION: acpi_hw_check_all_gpes
+ *
+ * PARAMETERS: gpe_skip_device - GPE devoce of the GPE to skip
+ * gpe_skip_number - Number of the GPE to skip
+ *
+ * RETURN: Combined status of all GPEs
+ *
+ * DESCRIPTION: Check all enabled GPEs in all GPE blocks, except for the one
+ * represented by the "skip" arguments, and return TRUE if the
+ * status bit is set for at least one of them of FALSE otherwise.
+ *
+ ******************************************************************************/
+
+u8 acpi_hw_check_all_gpes(acpi_handle gpe_skip_device, u32 gpe_skip_number)
+{
+ struct acpi_gpe_block_status_context context = {
+ .gpe_skip_register_info = NULL,
+ .retval = 0,
+ };
+ struct acpi_gpe_event_info *gpe_event_info;
+ acpi_cpu_flags flags;
+
+ ACPI_FUNCTION_TRACE(acpi_hw_check_all_gpes);
+
+ flags = acpi_os_acquire_lock(acpi_gbl_gpe_lock);
+
+ gpe_event_info = acpi_ev_get_gpe_event_info(gpe_skip_device,
+ gpe_skip_number);
+ if (gpe_event_info) {
+ context.gpe_skip_register_info = gpe_event_info->register_info;
+ context.gpe_skip_mask = acpi_hw_get_gpe_register_bit(gpe_event_info);
+ }
+
+ acpi_os_release_lock(acpi_gbl_gpe_lock, flags);
+
+ (void)acpi_ev_walk_gpe_list(acpi_hw_get_gpe_block_status, &context);
+ return (context.retval != 0);
+}
+
#endif /* !ACPI_REDUCED_HARDWARE */