diff options
Diffstat (limited to 'drivers/gpu/drm/amd/display/dmub')
-rw-r--r-- | drivers/gpu/drm/amd/display/dmub/inc/dmub_srv.h | 17 | ||||
-rw-r--r-- | drivers/gpu/drm/amd/display/dmub/src/dmub_dcn20.c | 25 | ||||
-rw-r--r-- | drivers/gpu/drm/amd/display/dmub/src/dmub_dcn20.h | 8 | ||||
-rw-r--r-- | drivers/gpu/drm/amd/display/dmub/src/dmub_srv.c | 19 |
4 files changed, 63 insertions, 6 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 8e23a7017588..f8917594036a 100644 --- a/drivers/gpu/drm/amd/display/dmub/inc/dmub_srv.h +++ b/drivers/gpu/drm/amd/display/dmub/inc/dmub_srv.h @@ -231,6 +231,8 @@ struct dmub_srv_base_funcs { struct dmub_srv_hw_funcs { /* private: internal use only */ + void (*init)(struct dmub_srv *dmub); + void (*reset)(struct dmub_srv *dmub); void (*reset_release)(struct dmub_srv *dmub); @@ -417,6 +419,21 @@ enum dmub_status dmub_srv_hw_init(struct dmub_srv *dmub, const struct dmub_srv_hw_params *params); /** + * dmub_srv_hw_reset() - puts the DMUB hardware in reset state if initialized + * @dmub: the dmub service + * + * Before destroying the DMUB service or releasing the backing framebuffer + * memory we'll need to put the DMCUB into reset first. + * + * A subsequent call to dmub_srv_hw_init() will re-enable the DMCUB. + * + * Return: + * DMUB_STATUS_OK - success + * DMUB_STATUS_INVALID - unspecified error + */ +enum dmub_status dmub_srv_hw_reset(struct dmub_srv *dmub); + +/** * dmub_srv_cmd_queue() - queues a command to the DMUB * @dmub: the dmub service * @cmd: the command to queue diff --git a/drivers/gpu/drm/amd/display/dmub/src/dmub_dcn20.c b/drivers/gpu/drm/amd/display/dmub/src/dmub_dcn20.c index cd51c6138894..b2ca8e0dbac9 100644 --- a/drivers/gpu/drm/amd/display/dmub/src/dmub_dcn20.c +++ b/drivers/gpu/drm/amd/display/dmub/src/dmub_dcn20.c @@ -54,6 +54,19 @@ const struct dmub_srv_common_regs dmub_srv_dcn20_regs = { /* Shared functions. */ +static void dmub_dcn20_get_fb_base_offset(struct dmub_srv *dmub, + uint64_t *fb_base, + uint64_t *fb_offset) +{ + uint32_t tmp; + + REG_GET(DCN_VM_FB_LOCATION_BASE, FB_BASE, &tmp); + *fb_base = (uint64_t)tmp << 24; + + REG_GET(DCN_VM_FB_OFFSET, FB_OFFSET, &tmp); + *fb_offset = (uint64_t)tmp << 24; +} + static inline void dmub_dcn20_translate_addr(const union dmub_addr *addr_in, uint64_t fb_base, uint64_t fb_offset, @@ -67,6 +80,8 @@ void dmub_dcn20_reset(struct dmub_srv *dmub) REG_UPDATE(DMCUB_CNTL, DMCUB_SOFT_RESET, 1); REG_UPDATE(DMCUB_CNTL, DMCUB_ENABLE, 0); REG_UPDATE(MMHUBBUB_SOFT_RESET, DMUIF_SOFT_RESET, 1); + REG_WRITE(DMCUB_INBOX1_RPTR, 0); + REG_WRITE(DMCUB_INBOX1_WPTR, 0); } void dmub_dcn20_reset_release(struct dmub_srv *dmub) @@ -82,7 +97,9 @@ void dmub_dcn20_backdoor_load(struct dmub_srv *dmub, const struct dmub_window *cw1) { union dmub_addr offset; - uint64_t fb_base = dmub->fb_base, fb_offset = dmub->fb_offset; + uint64_t fb_base, fb_offset; + + dmub_dcn20_get_fb_base_offset(dmub, &fb_base, &fb_offset); REG_UPDATE(DMCUB_SEC_CNTL, DMCUB_SEC_RESET, 1); REG_UPDATE_2(DMCUB_MEM_CNTL, DMCUB_MEM_READ_SPACE, 0x3, @@ -118,7 +135,9 @@ void dmub_dcn20_setup_windows(struct dmub_srv *dmub, const struct dmub_window *cw6) { union dmub_addr offset; - uint64_t fb_base = dmub->fb_base, fb_offset = dmub->fb_offset; + uint64_t fb_base, fb_offset; + + dmub_dcn20_get_fb_base_offset(dmub, &fb_base, &fb_offset); dmub_dcn20_translate_addr(&cw2->offset, fb_base, fb_offset, &offset); @@ -173,8 +192,6 @@ void dmub_dcn20_setup_mailbox(struct dmub_srv *dmub, REG_WRITE(DMCUB_INBOX1_BASE_ADDRESS, 0x80000000); REG_WRITE(DMCUB_INBOX1_SIZE, inbox1->top - inbox1->base); - REG_WRITE(DMCUB_INBOX1_RPTR, 0); - REG_WRITE(DMCUB_INBOX1_WPTR, 0); } uint32_t dmub_dcn20_get_inbox1_rptr(struct dmub_srv *dmub) diff --git a/drivers/gpu/drm/amd/display/dmub/src/dmub_dcn20.h b/drivers/gpu/drm/amd/display/dmub/src/dmub_dcn20.h index 53bfd4da69ad..04b0fa13153d 100644 --- a/drivers/gpu/drm/amd/display/dmub/src/dmub_dcn20.h +++ b/drivers/gpu/drm/amd/display/dmub/src/dmub_dcn20.h @@ -92,7 +92,9 @@ struct dmub_srv; DMUB_SR(DMCUB_SCRATCH14) \ DMUB_SR(DMCUB_SCRATCH15) \ DMUB_SR(CC_DC_PIPE_DIS) \ - DMUB_SR(MMHUBBUB_SOFT_RESET) + DMUB_SR(MMHUBBUB_SOFT_RESET) \ + DMUB_SR(DCN_VM_FB_LOCATION_BASE) \ + DMUB_SR(DCN_VM_FB_OFFSET) #define DMUB_COMMON_FIELDS() \ DMUB_SF(DMCUB_CNTL, DMCUB_ENABLE) \ @@ -121,7 +123,9 @@ struct dmub_srv; DMUB_SF(DMCUB_REGION4_TOP_ADDRESS, DMCUB_REGION4_TOP_ADDRESS) \ DMUB_SF(DMCUB_REGION4_TOP_ADDRESS, DMCUB_REGION4_ENABLE) \ DMUB_SF(CC_DC_PIPE_DIS, DC_DMCUB_ENABLE) \ - DMUB_SF(MMHUBBUB_SOFT_RESET, DMUIF_SOFT_RESET) + DMUB_SF(MMHUBBUB_SOFT_RESET, DMUIF_SOFT_RESET) \ + DMUB_SF(DCN_VM_FB_LOCATION_BASE, FB_BASE) \ + DMUB_SF(DCN_VM_FB_OFFSET, FB_OFFSET) struct dmub_srv_common_reg_offset { #define DMUB_SR(reg) uint32_t reg; 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 dee676335d73..85a518bf8a76 100644 --- a/drivers/gpu/drm/amd/display/dmub/src/dmub_srv.c +++ b/drivers/gpu/drm/amd/display/dmub/src/dmub_srv.c @@ -312,6 +312,9 @@ enum dmub_status dmub_srv_is_hw_init(struct dmub_srv *dmub, bool *is_hw_init) if (!dmub->sw_init) return DMUB_STATUS_INVALID; + if (!dmub->hw_init) + return DMUB_STATUS_OK; + if (dmub->hw_funcs.is_hw_init) *is_hw_init = dmub->hw_funcs.is_hw_init(dmub); @@ -415,6 +418,22 @@ enum dmub_status dmub_srv_hw_init(struct dmub_srv *dmub, return DMUB_STATUS_OK; } +enum dmub_status dmub_srv_hw_reset(struct dmub_srv *dmub) +{ + if (!dmub->sw_init) + return DMUB_STATUS_INVALID; + + if (dmub->hw_init == false) + return DMUB_STATUS_OK; + + if (dmub->hw_funcs.reset) + dmub->hw_funcs.reset(dmub); + + dmub->hw_init = false; + + return DMUB_STATUS_OK; +} + enum dmub_status dmub_srv_cmd_queue(struct dmub_srv *dmub, const struct dmub_cmd_header *cmd) { |