diff options
| author | Wyatt Wood <wyatt.wood@amd.com> | 2020-03-05 15:14:01 -0500 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2020-03-19 00:03:04 -0400 |
| commit | 2277f01dbc09f7d440bbc2e45d551b7c8f630a9e (patch) | |
| tree | d08bcdbbf2aca8f4fd977663225169a0e0048fdc /drivers/gpu/drm/amd/display | |
| parent | eb1b4573c080469fbacce953805e22a670193344 (diff) | |
drm/amd/display: Allocate scratch space for DMUB CW7
[Why]
The scratch space can be used to pass data between x86 and DMCUB. DMCUB
will manage the actually mapping of CW7 internally, driver does not
program the window.
[How]
Allocate extra space within the DMUB service's framebuffer for this
scratch space and expose them from the service for use in DC.
Signed-off-by: Wyatt Wood <wyatt.wood@amd.com>
Reviewed-by: Nicholas Kazlauskas <Nicholas.Kazlauskas@amd.com>
Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/display')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dmub/inc/dmub_srv.h | 3 | ||||
| -rw-r--r-- | drivers/gpu/drm/amd/display/dmub/src/dmub_srv.c | 17 |
2 files changed, 16 insertions, 4 deletions
diff --git a/drivers/gpu/drm/amd/display/dmub/inc/dmub_srv.h b/drivers/gpu/drm/amd/display/dmub/inc/dmub_srv.h index e619fa9cf53a..c2671f2616c8 100644 --- a/drivers/gpu/drm/amd/display/dmub/inc/dmub_srv.h +++ b/drivers/gpu/drm/amd/display/dmub/inc/dmub_srv.h @@ -104,7 +104,7 @@ enum dmub_window_id { DMUB_WINDOW_4_MAILBOX, DMUB_WINDOW_5_TRACEBUFF, DMUB_WINDOW_6_FW_STATE, - DMUB_WINDOW_7_RESERVED, + DMUB_WINDOW_7_SCRATCH_MEM, DMUB_WINDOW_TOTAL, }; @@ -316,6 +316,7 @@ struct dmub_srv { enum dmub_asic asic; void *user_ctx; bool is_virtual; + struct dmub_fb scratch_mem_fb; volatile const struct dmub_fw_state *fw_state; /* private: internal use only */ diff --git a/drivers/gpu/drm/amd/display/dmub/src/dmub_srv.c b/drivers/gpu/drm/amd/display/dmub/src/dmub_srv.c index 45be185ef312..ce32cc7933c4 100644 --- a/drivers/gpu/drm/amd/display/dmub/src/dmub_srv.c +++ b/drivers/gpu/drm/amd/display/dmub/src/dmub_srv.c @@ -52,8 +52,11 @@ /* Default tracebuffer size if meta is absent. */ #define DMUB_TRACE_BUFFER_SIZE (1024) +/* Default scratch mem size. */ +#define DMUB_SCRATCH_MEM_SIZE (256) + /* Number of windows in use. */ -#define DMUB_NUM_WINDOWS (DMUB_WINDOW_6_FW_STATE + 1) +#define DMUB_NUM_WINDOWS (DMUB_WINDOW_TOTAL) /* Base addresses. */ #define DMUB_CW0_BASE (0x60000000) @@ -211,9 +214,11 @@ dmub_srv_calc_region_info(struct dmub_srv *dmub, struct dmub_region *mail = &out->regions[DMUB_WINDOW_4_MAILBOX]; struct dmub_region *trace_buff = &out->regions[DMUB_WINDOW_5_TRACEBUFF]; struct dmub_region *fw_state = &out->regions[DMUB_WINDOW_6_FW_STATE]; + struct dmub_region *scratch_mem = &out->regions[DMUB_WINDOW_7_SCRATCH_MEM]; const struct dmub_fw_meta_info *fw_info; uint32_t fw_state_size = DMUB_FW_STATE_SIZE; uint32_t trace_buffer_size = DMUB_TRACE_BUFFER_SIZE; + uint32_t scratch_mem_size = DMUB_SCRATCH_MEM_SIZE; if (!dmub->sw_init) return DMUB_STATUS_INVALID; @@ -256,7 +261,10 @@ dmub_srv_calc_region_info(struct dmub_srv *dmub, fw_state->base = dmub_align(trace_buff->top, 256); fw_state->top = fw_state->base + dmub_align(fw_state_size, 64); - out->fb_size = dmub_align(fw_state->top, 4096); + scratch_mem->base = dmub_align(fw_state->top, 256); + scratch_mem->top = scratch_mem->base + dmub_align(scratch_mem_size, 64); + + out->fb_size = dmub_align(scratch_mem->top, 4096); return DMUB_STATUS_OK; } @@ -334,6 +342,7 @@ enum dmub_status dmub_srv_hw_init(struct dmub_srv *dmub, struct dmub_fb *mail_fb = params->fb[DMUB_WINDOW_4_MAILBOX]; struct dmub_fb *tracebuff_fb = params->fb[DMUB_WINDOW_5_TRACEBUFF]; struct dmub_fb *fw_state_fb = params->fb[DMUB_WINDOW_6_FW_STATE]; + struct dmub_fb *scratch_mem_fb = params->fb[DMUB_WINDOW_7_SCRATCH_MEM]; struct dmub_rb_init_params rb_params; struct dmub_window cw0, cw1, cw2, cw3, cw4, cw5, cw6; @@ -370,7 +379,7 @@ enum dmub_status dmub_srv_hw_init(struct dmub_srv *dmub, dmub->hw_funcs.reset(dmub); if (inst_fb && data_fb && bios_fb && mail_fb && tracebuff_fb && - fw_state_fb) { + fw_state_fb && scratch_mem_fb) { cw2.offset.quad_part = data_fb->gpu_addr; cw2.region.base = DMUB_CW0_BASE + inst_fb->size; cw2.region.top = cw2.region.base + data_fb->size; @@ -396,6 +405,8 @@ enum dmub_status dmub_srv_hw_init(struct dmub_srv *dmub, dmub->fw_state = fw_state_fb->cpu_addr; + dmub->scratch_mem_fb = *scratch_mem_fb; + if (dmub->hw_funcs.setup_windows) dmub->hw_funcs.setup_windows(dmub, &cw2, &cw3, &cw4, &cw5, &cw6); |