diff options
Diffstat (limited to 'drivers/gpu/drm/xe/xe_sysctrl_mailbox.c')
| -rw-r--r-- | drivers/gpu/drm/xe/xe_sysctrl_mailbox.c | 22 |
1 files changed, 4 insertions, 18 deletions
diff --git a/drivers/gpu/drm/xe/xe_sysctrl_mailbox.c b/drivers/gpu/drm/xe/xe_sysctrl_mailbox.c index e13eebaac1d0..72baf1aa4b3a 100644 --- a/drivers/gpu/drm/xe/xe_sysctrl_mailbox.c +++ b/drivers/gpu/drm/xe/xe_sysctrl_mailbox.c @@ -145,6 +145,7 @@ static int sysctrl_send_frames(struct xe_sysctrl *sc, struct xe_device *xe = sc_to_xe(sc); u32 ctrl_reg, total_frames, frame; size_t bytes_sent, frame_size; + bool phase; total_frames = DIV_ROUND_UP(cmd_size, XE_SYSCTRL_MB_FRAME_SIZE); @@ -153,7 +154,8 @@ static int sysctrl_send_frames(struct xe_sysctrl *sc, return -EBUSY; } - sc->phase_bit ^= 1; + ctrl_reg = xe_mmio_read32(sc->mmio, SYSCTRL_MB_CTRL); + phase = !(ctrl_reg & SYSCTRL_FRAME_PHASE); bytes_sent = 0; for (frame = 0; frame < total_frames; frame++) { @@ -161,7 +163,6 @@ static int sysctrl_send_frames(struct xe_sysctrl *sc, if (sysctrl_write_frame(sc, mbox_cmd + bytes_sent, frame_size)) { xe_err(xe, "sysctrl: Failed to write frame %u\n", frame); - sc->phase_bit = 0; return -EIO; } @@ -169,13 +170,12 @@ static int sysctrl_send_frames(struct xe_sysctrl *sc, REG_FIELD_PREP(SYSCTRL_FRAME_CURRENT_MASK, frame) | REG_FIELD_PREP(SYSCTRL_FRAME_TOTAL_MASK, total_frames - 1) | SYSCTRL_MB_CTRL_CMD | - (sc->phase_bit ? SYSCTRL_FRAME_PHASE : 0); + (phase ? SYSCTRL_FRAME_PHASE : 0); xe_mmio_write32(sc->mmio, SYSCTRL_MB_CTRL, ctrl_reg); if (!sysctrl_wait_bit_clear(sc, SYSCTRL_MB_CTRL_RUN_BUSY, timeout_ms)) { xe_err(xe, "sysctrl: Frame %u acknowledgment timeout\n", frame); - sc->phase_bit = 0; return -ETIMEDOUT; } @@ -322,20 +322,6 @@ void xe_sysctrl_create_command(struct xe_sysctrl_mailbox_command *command, u8 gr } /** - * xe_sysctrl_mailbox_init - Initialize System Controller mailbox interface - * @sc: System controller structure - * - * Initialize system controller mailbox interface for communication. - */ -void xe_sysctrl_mailbox_init(struct xe_sysctrl *sc) -{ - u32 ctrl_reg; - - ctrl_reg = xe_mmio_read32(sc->mmio, SYSCTRL_MB_CTRL); - sc->phase_bit = (ctrl_reg & SYSCTRL_FRAME_PHASE) ? 1 : 0; -} - -/** * xe_sysctrl_send_command() - Send mailbox command to System Controller * @sc: System Controller instance * @cmd: Command descriptor containing request header and payload buffers |