[PATCH v3 2/2] drm/i915/gvt: align the child_device_config
Zhang, Xiaolin
xiaolin.zhang at intel.com
Thu Sep 6 03:08:36 UTC 2018
looks good for me.
Reviewed-by: Xiaolin Zhang <xiaolin.zhang at intel.com>
On 09/04/2018 02:20 PM, Weinan Li wrote:
> GVT-g emulate opregion for VM with self-defined child_device_config,
> here refine it to align with the graphics driver, and remove the unused
> fields.
>
> Signed-off-by: Weinan Li <weinan.z.li at intel.com>
> ---
> drivers/gpu/drm/i915/gvt/opregion.c | 124 +++++++++++++++++++++++-------------
> 1 file changed, 80 insertions(+), 44 deletions(-)
>
> diff --git a/drivers/gpu/drm/i915/gvt/opregion.c b/drivers/gpu/drm/i915/gvt/opregion.c
> index 276db53..5895869 100644
> --- a/drivers/gpu/drm/i915/gvt/opregion.c
> +++ b/drivers/gpu/drm/i915/gvt/opregion.c
> @@ -63,54 +63,90 @@ struct bdb_data_header {
>
> /* For supporting windows guest with opregion, here hardcode the emulated
> * bdb header version as '186', and the corresponding child_device_config
> - * length should be '33' but not '38'.
> + * length should be '33' but not '38'. Define one new struct named as
> + * efp_child_device_config which is one copy of child_device_config but
> + * without fields which added from version '195'.
> */
> struct efp_child_device_config {
> u16 handle;
> u16 device_type;
> - u16 device_class;
> - u8 i2c_speed;
> - u8 dp_onboard_redriver; /* 158 */
> - u8 dp_ondock_redriver; /* 158 */
> - u8 hdmi_level_shifter_value:4; /* 169 */
> - u8 hdmi_max_data_rate:4; /* 204 */
> - u16 dtd_buf_ptr; /* 161 */
> - u8 edidless_efp:1; /* 161 */
> - u8 compression_enable:1; /* 198 */
> - u8 compression_method:1; /* 198 */
> - u8 ganged_edp:1; /* 202 */
> - u8 skip0:4;
> - u8 compression_structure_index:4; /* 198 */
> - u8 skip1:4;
> - u8 slave_port; /* 202 */
> - u8 skip2;
> +
> + union {
> + u8 device_id[10]; /* ascii string */
> + struct {
> + u8 i2c_speed;
> + u8 dp_onboard_redriver; /* 158 */
> + u8 dp_ondock_redriver; /* 158 */
> + u8 hdmi_level_shifter_value:4; /* 169 */
> + u8 hdmi_max_data_rate:4; /* 204 */
> + u16 dtd_buf_ptr; /* 161 */
> + u8 edidless_efp:1; /* 161 */
> + u8 compression_enable:1; /* 198 */
> + u8 compression_method:1; /* 198 */
> + u8 ganged_edp:1; /* 202 */
> + u8 reserved0:4;
> + u8 compression_structure_index:4; /* 198 */
> + u8 reserved1:4;
> + u8 slave_port; /* 202 */
> + u8 reserved2;
> + } __packed;
> + } __packed;
> +
> + u16 addin_offset;
> u8 dvo_port;
> - u8 i2c_pin; /* for add-in card */
> - u8 slave_addr; /* for add-in card */
> + u8 i2c_pin;
> + u8 slave_addr;
> u8 ddc_pin;
> u16 edid_ptr;
> - u8 dvo_config;
> - u8 efp_docked_port:1; /* 158 */
> - u8 lane_reversal:1; /* 184 */
> - u8 onboard_lspcon:1; /* 192 */
> - u8 iboost_enable:1; /* 196 */
> - u8 hpd_invert:1; /* BXT 196 */
> - u8 slip3:3;
> - u8 hdmi_compat:1;
> - u8 dp_compat:1;
> - u8 tmds_compat:1;
> - u8 skip4:5;
> - u8 aux_channel;
> - u8 dongle_detect;
> - u8 pipe_cap:2;
> - u8 sdvo_stall:1; /* 158 */
> - u8 hpd_status:2;
> - u8 integrated_encoder:1;
> - u8 skip5:2;
> - u8 dvo_wiring;
> - u8 mipi_bridge_type; /* 171 */
> - u16 device_class_ext;
> + u8 dvo_cfg; /* See DEVICE_CFG_* above */
> +
> + union {
> + struct {
> + u8 dvo2_port;
> + u8 i2c2_pin;
> + u8 slave2_addr;
> + u8 ddc2_pin;
> + } __packed;
> + struct {
> + u8 efp_routed:1; /* 158 */
> + u8 lane_reversal:1; /* 184 */
> + u8 lspcon:1; /* 192 */
> + u8 iboost:1; /* 196 */
> + u8 hpd_invert:1; /* 196 */
> + u8 flag_reserved:3;
> + u8 hdmi_support:1; /* 158 */
> + u8 dp_support:1; /* 158 */
> + u8 tmds_support:1; /* 158 */
> + u8 support_reserved:5;
> + u8 aux_channel;
> + u8 dongle_detect;
> + } __packed;
> + } __packed;
> +
> + union {
> + u8 capabilities;
> + struct {
> + u8 pipe_cap:2;
> + u8 sdvo_stall:1;
> + u8 hpd_status:2;
> + u8 integrated_encoder:1; /* 158 */
> + u8 skip5:2;
> + } __packed;
> + } __packed;
> +
> + u8 dvo_wiring; /* See DEVICE_WIRE_* above */
> +
> + union {
> + u8 dvo2_wiring;
> + u8 mipi_bridge_type; /* 171 */
> + } __packed;
> +
> + u16 extended_type;
> u8 dvo_function;
> + /* u8 flags2; 195 */
> + /* u8 dp_gpio_index; 195 */
> + /* u16 dp_gpio_pin_num; 195 */
> + /* u8 iboost_level; 196 */
> } __packed;
>
> struct vbt {
> @@ -178,7 +214,7 @@ static void virt_vbt_generation(struct vbt *v)
> v->child0.device_type = DEVICE_TYPE_DP;
> v->child0.dvo_port = DVO_PORT_DPA;
> v->child0.aux_channel = DP_AUX_A;
> - v->child0.dp_compat = true;
> + v->child0.dp_support = true;
> v->child0.integrated_encoder = true;
>
> /* portB */
> @@ -186,7 +222,7 @@ static void virt_vbt_generation(struct vbt *v)
> v->child1.device_type = DEVICE_TYPE_DP;
> v->child1.dvo_port = DVO_PORT_DPB;
> v->child1.aux_channel = DP_AUX_B;
> - v->child1.dp_compat = true;
> + v->child1.dp_support = true;
> v->child1.integrated_encoder = true;
>
> /* portC */
> @@ -194,7 +230,7 @@ static void virt_vbt_generation(struct vbt *v)
> v->child2.device_type = DEVICE_TYPE_DP;
> v->child2.dvo_port = DVO_PORT_DPC;
> v->child2.aux_channel = DP_AUX_C;
> - v->child2.dp_compat = true;
> + v->child2.dp_support = true;
> v->child2.integrated_encoder = true;
>
> /* portD */
> @@ -202,7 +238,7 @@ static void virt_vbt_generation(struct vbt *v)
> v->child3.device_type = DEVICE_TYPE_DP;
> v->child3.dvo_port = DVO_PORT_DPD;
> v->child3.aux_channel = DP_AUX_D;
> - v->child3.dp_compat = true;
> + v->child3.dp_support = true;
> v->child3.integrated_encoder = true;
>
> /* driver features */
More information about the intel-gvt-dev
mailing list