summaryrefslogtreecommitdiffstats
path: root/include/xen
diff options
context:
space:
mode:
Diffstat (limited to 'include/xen')
-rw-r--r--include/xen/interface/io/displif.h91
-rw-r--r--include/xen/page.h1
-rw-r--r--include/xen/swiotlb-xen.h8
3 files changed, 92 insertions, 8 deletions
diff --git a/include/xen/interface/io/displif.h b/include/xen/interface/io/displif.h
index fdc279dc4a88..d43ca0361f86 100644
--- a/include/xen/interface/io/displif.h
+++ b/include/xen/interface/io/displif.h
@@ -38,7 +38,8 @@
* Protocol version
******************************************************************************
*/
-#define XENDISPL_PROTOCOL_VERSION "1"
+#define XENDISPL_PROTOCOL_VERSION "2"
+#define XENDISPL_PROTOCOL_VERSION_INT 2
/*
******************************************************************************
@@ -202,6 +203,9 @@
* Width and height of the connector in pixels separated by
* XENDISPL_RESOLUTION_SEPARATOR. This defines visible area of the
* display.
+ * If backend provides extended display identification data (EDID) with
+ * XENDISPL_OP_GET_EDID request then EDID values must take precedence
+ * over the resolutions defined here.
*
*------------------ Connector Request Transport Parameters -------------------
*
@@ -349,6 +353,8 @@
#define XENDISPL_OP_FB_DETACH 0x13
#define XENDISPL_OP_SET_CONFIG 0x14
#define XENDISPL_OP_PG_FLIP 0x15
+/* The below command is available in protocol version 2 and above. */
+#define XENDISPL_OP_GET_EDID 0x16
/*
******************************************************************************
@@ -377,6 +383,10 @@
#define XENDISPL_FIELD_BE_ALLOC "be-alloc"
#define XENDISPL_FIELD_UNIQUE_ID "unique-id"
+#define XENDISPL_EDID_BLOCK_SIZE 128
+#define XENDISPL_EDID_BLOCK_COUNT 256
+#define XENDISPL_EDID_MAX_SIZE (XENDISPL_EDID_BLOCK_SIZE * XENDISPL_EDID_BLOCK_COUNT)
+
/*
******************************************************************************
* STATUS RETURN CODES
@@ -451,7 +461,9 @@
* +----------------+----------------+----------------+----------------+
* | gref_directory | 40
* +----------------+----------------+----------------+----------------+
- * | reserved | 44
+ * | data_ofs | 44
+ * +----------------+----------------+----------------+----------------+
+ * | reserved | 48
* +----------------+----------------+----------------+----------------+
* |/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/|
* +----------------+----------------+----------------+----------------+
@@ -494,6 +506,7 @@
* buffer size (buffer_sz) exceeds what can be addressed by this single page,
* then reference to the next page must be supplied (see gref_dir_next_page
* below)
+ * data_ofs - uint32_t, offset of the data in the buffer, octets
*/
#define XENDISPL_DBUF_FLG_REQ_ALLOC (1 << 0)
@@ -506,6 +519,7 @@ struct xendispl_dbuf_create_req {
uint32_t buffer_sz;
uint32_t flags;
grant_ref_t gref_directory;
+ uint32_t data_ofs;
};
/*
@@ -732,6 +746,44 @@ struct xendispl_page_flip_req {
};
/*
+ * Request EDID - request EDID describing current connector:
+ * 0 1 2 3 octet
+ * +----------------+----------------+----------------+----------------+
+ * | id | _OP_GET_EDID | reserved | 4
+ * +----------------+----------------+----------------+----------------+
+ * | buffer_sz | 8
+ * +----------------+----------------+----------------+----------------+
+ * | gref_directory | 12
+ * +----------------+----------------+----------------+----------------+
+ * | reserved | 16
+ * +----------------+----------------+----------------+----------------+
+ * |/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/|
+ * +----------------+----------------+----------------+----------------+
+ * | reserved | 64
+ * +----------------+----------------+----------------+----------------+
+ *
+ * Notes:
+ * - This command is not available in protocol version 1 and should be
+ * ignored.
+ * - This request is optional and if not supported then visible area
+ * is defined by the relevant XenStore's "resolution" property.
+ * - Shared buffer, allocated for EDID storage, must not be less then
+ * XENDISPL_EDID_MAX_SIZE octets.
+ *
+ * buffer_sz - uint32_t, buffer size to be allocated, octets
+ * gref_directory - grant_ref_t, a reference to the first shared page
+ * describing EDID buffer references. See XENDISPL_OP_DBUF_CREATE for
+ * grant page directory structure (struct xendispl_page_directory).
+ *
+ * See response format for this request.
+ */
+
+struct xendispl_get_edid_req {
+ uint32_t buffer_sz;
+ grant_ref_t gref_directory;
+};
+
+/*
*---------------------------------- Responses --------------------------------
*
* All response packets have the same length (64 octets)
@@ -753,6 +805,35 @@ struct xendispl_page_flip_req {
* id - uint16_t, private guest value, echoed from request
* status - int32_t, response status, zero on success and -XEN_EXX on failure
*
+ *
+ * Get EDID response - response for XENDISPL_OP_GET_EDID:
+ * 0 1 2 3 octet
+ * +----------------+----------------+----------------+----------------+
+ * | id | operation | reserved | 4
+ * +----------------+----------------+----------------+----------------+
+ * | status | 8
+ * +----------------+----------------+----------------+----------------+
+ * | edid_sz | 12
+ * +----------------+----------------+----------------+----------------+
+ * | reserved | 16
+ * +----------------+----------------+----------------+----------------+
+ * |/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/|
+ * +----------------+----------------+----------------+----------------+
+ * | reserved | 64
+ * +----------------+----------------+----------------+----------------+
+ *
+ * Notes:
+ * - This response is not available in protocol version 1 and should be
+ * ignored.
+ *
+ * edid_sz - uint32_t, size of the EDID, octets
+ */
+
+struct xendispl_get_edid_resp {
+ uint32_t edid_sz;
+};
+
+/*
*----------------------------------- Events ----------------------------------
*
* Events are sent via a shared page allocated by the front and propagated by
@@ -804,6 +885,7 @@ struct xendispl_req {
struct xendispl_fb_detach_req fb_detach;
struct xendispl_set_config_req set_config;
struct xendispl_page_flip_req pg_flip;
+ struct xendispl_get_edid_req get_edid;
uint8_t reserved[56];
} op;
};
@@ -813,7 +895,10 @@ struct xendispl_resp {
uint8_t operation;
uint8_t reserved;
int32_t status;
- uint8_t reserved1[56];
+ union {
+ struct xendispl_get_edid_resp get_edid;
+ uint8_t reserved1[56];
+ } op;
};
struct xendispl_evt {
diff --git a/include/xen/page.h b/include/xen/page.h
index df6d6b6ec66e..285677b42943 100644
--- a/include/xen/page.h
+++ b/include/xen/page.h
@@ -24,7 +24,6 @@
#define XEN_PFN_DOWN(x) ((x) >> XEN_PAGE_SHIFT)
#define XEN_PFN_UP(x) (((x) + XEN_PAGE_SIZE-1) >> XEN_PAGE_SHIFT)
-#define XEN_PFN_PHYS(x) ((phys_addr_t)(x) << XEN_PAGE_SHIFT)
#include <asm/xen/page.h>
diff --git a/include/xen/swiotlb-xen.h b/include/xen/swiotlb-xen.h
index ffc0d3902b71..d5eaf9d682b8 100644
--- a/include/xen/swiotlb-xen.h
+++ b/include/xen/swiotlb-xen.h
@@ -4,10 +4,10 @@
#include <linux/swiotlb.h>
-void xen_dma_sync_for_cpu(dma_addr_t handle, phys_addr_t paddr, size_t size,
- enum dma_data_direction dir);
-void xen_dma_sync_for_device(dma_addr_t handle, phys_addr_t paddr, size_t size,
- enum dma_data_direction dir);
+void xen_dma_sync_for_cpu(struct device *dev, dma_addr_t handle,
+ size_t size, enum dma_data_direction dir);
+void xen_dma_sync_for_device(struct device *dev, dma_addr_t handle,
+ size_t size, enum dma_data_direction dir);
extern int xen_swiotlb_init(int verbose, bool early);
extern const struct dma_map_ops xen_swiotlb_dma_ops;
generated by cgit v1.2.3 (git 2.25.1) at 2024-09-03 00:21:09 +0000