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drm/radeon: implement clock and power gating for SI

Only Cape Verde supports power gating.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
hifive-unleashed-5.1
Alex Deucher 2013-03-07 12:56:35 -05:00
parent bd8cd5391a
commit f8f84ac5d4
2 changed files with 549 additions and 42 deletions

View File

@ -4552,6 +4552,450 @@ void si_dma_vm_flush(struct radeon_device *rdev, int ridx, struct radeon_vm *vm)
radeon_ring_write(ring, 1 << vm->id);
}
/*
* Power and clock gating
*/
static void si_wait_for_rlc_serdes(struct radeon_device *rdev)
{
int i;
for (i = 0; i < rdev->usec_timeout; i++) {
if (RREG32(RLC_SERDES_MASTER_BUSY_0) == 0)
break;
udelay(1);
}
for (i = 0; i < rdev->usec_timeout; i++) {
if (RREG32(RLC_SERDES_MASTER_BUSY_1) == 0)
break;
udelay(1);
}
}
static void si_enable_gui_idle_interrupt(struct radeon_device *rdev,
bool enable)
{
u32 tmp = RREG32(CP_INT_CNTL_RING0);
u32 mask;
int i;
if (enable)
tmp |= (CNTX_BUSY_INT_ENABLE | CNTX_EMPTY_INT_ENABLE);
else
tmp &= ~(CNTX_BUSY_INT_ENABLE | CNTX_EMPTY_INT_ENABLE);
WREG32(CP_INT_CNTL_RING0, tmp);
if (!enable) {
/* read a gfx register */
tmp = RREG32(DB_DEPTH_INFO);
mask = RLC_BUSY_STATUS | GFX_POWER_STATUS | GFX_CLOCK_STATUS | GFX_LS_STATUS;
for (i = 0; i < rdev->usec_timeout; i++) {
if ((RREG32(RLC_STAT) & mask) == (GFX_CLOCK_STATUS | GFX_POWER_STATUS))
break;
udelay(1);
}
}
}
static void si_set_uvd_dcm(struct radeon_device *rdev,
bool sw_mode)
{
u32 tmp, tmp2;
tmp = RREG32(UVD_CGC_CTRL);
tmp &= ~(CLK_OD_MASK | CG_DT_MASK);
tmp |= DCM | CG_DT(1) | CLK_OD(4);
if (sw_mode) {
tmp &= ~0x7ffff800;
tmp2 = DYN_OR_EN | DYN_RR_EN | G_DIV_ID(7);
} else {
tmp |= 0x7ffff800;
tmp2 = 0;
}
WREG32(UVD_CGC_CTRL, tmp);
WREG32_UVD_CTX(UVD_CGC_CTRL2, tmp2);
}
static void si_init_uvd_internal_cg(struct radeon_device *rdev)
{
bool hw_mode = true;
if (hw_mode) {
si_set_uvd_dcm(rdev, false);
} else {
u32 tmp = RREG32(UVD_CGC_CTRL);
tmp &= ~DCM;
WREG32(UVD_CGC_CTRL, tmp);
}
}
static u32 si_halt_rlc(struct radeon_device *rdev)
{
u32 data, orig;
orig = data = RREG32(RLC_CNTL);
if (data & RLC_ENABLE) {
data &= ~RLC_ENABLE;
WREG32(RLC_CNTL, data);
si_wait_for_rlc_serdes(rdev);
}
return orig;
}
static void si_update_rlc(struct radeon_device *rdev, u32 rlc)
{
u32 tmp;
tmp = RREG32(RLC_CNTL);
if (tmp != rlc)
WREG32(RLC_CNTL, rlc);
}
static void si_enable_dma_pg(struct radeon_device *rdev, bool enable)
{
u32 data, orig;
orig = data = RREG32(DMA_PG);
if (enable)
data |= PG_CNTL_ENABLE;
else
data &= ~PG_CNTL_ENABLE;
if (orig != data)
WREG32(DMA_PG, data);
}
static void si_init_dma_pg(struct radeon_device *rdev)
{
u32 tmp;
WREG32(DMA_PGFSM_WRITE, 0x00002000);
WREG32(DMA_PGFSM_CONFIG, 0x100010ff);
for (tmp = 0; tmp < 5; tmp++)
WREG32(DMA_PGFSM_WRITE, 0);
}
static void si_enable_gfx_cgpg(struct radeon_device *rdev,
bool enable)
{
u32 tmp;
if (enable) {
tmp = RLC_PUD(0x10) | RLC_PDD(0x10) | RLC_TTPD(0x10) | RLC_MSD(0x10);
WREG32(RLC_TTOP_D, tmp);
tmp = RREG32(RLC_PG_CNTL);
tmp |= GFX_PG_ENABLE;
WREG32(RLC_PG_CNTL, tmp);
tmp = RREG32(RLC_AUTO_PG_CTRL);
tmp |= AUTO_PG_EN;
WREG32(RLC_AUTO_PG_CTRL, tmp);
} else {
tmp = RREG32(RLC_AUTO_PG_CTRL);
tmp &= ~AUTO_PG_EN;
WREG32(RLC_AUTO_PG_CTRL, tmp);
tmp = RREG32(DB_RENDER_CONTROL);
}
}
static void si_init_gfx_cgpg(struct radeon_device *rdev)
{
u32 tmp;
WREG32(RLC_SAVE_AND_RESTORE_BASE, rdev->rlc.save_restore_gpu_addr >> 8);
tmp = RREG32(RLC_PG_CNTL);
tmp |= GFX_PG_SRC;
WREG32(RLC_PG_CNTL, tmp);
WREG32(RLC_CLEAR_STATE_RESTORE_BASE, rdev->rlc.clear_state_gpu_addr >> 8);
tmp = RREG32(RLC_AUTO_PG_CTRL);
tmp &= ~GRBM_REG_SGIT_MASK;
tmp |= GRBM_REG_SGIT(0x700);
tmp &= ~PG_AFTER_GRBM_REG_ST_MASK;
WREG32(RLC_AUTO_PG_CTRL, tmp);
}
static u32 get_cu_active_bitmap(struct radeon_device *rdev, u32 se, u32 sh)
{
u32 mask = 0, tmp, tmp1;
int i;
si_select_se_sh(rdev, se, sh);
tmp = RREG32(CC_GC_SHADER_ARRAY_CONFIG);
tmp1 = RREG32(GC_USER_SHADER_ARRAY_CONFIG);
si_select_se_sh(rdev, 0xffffffff, 0xffffffff);
tmp &= 0xffff0000;
tmp |= tmp1;
tmp >>= 16;
for (i = 0; i < rdev->config.si.max_cu_per_sh; i ++) {
mask <<= 1;
mask |= 1;
}
return (~tmp) & mask;
}
static void si_init_ao_cu_mask(struct radeon_device *rdev)
{
u32 i, j, k, active_cu_number = 0;
u32 mask, counter, cu_bitmap;
u32 tmp = 0;
for (i = 0; i < rdev->config.si.max_shader_engines; i++) {
for (j = 0; j < rdev->config.si.max_sh_per_se; j++) {
mask = 1;
cu_bitmap = 0;
counter = 0;
for (k = 0; k < rdev->config.si.max_cu_per_sh; k++) {
if (get_cu_active_bitmap(rdev, i, j) & mask) {
if (counter < 2)
cu_bitmap |= mask;
counter++;
}
mask <<= 1;
}
active_cu_number += counter;
tmp |= (cu_bitmap << (i * 16 + j * 8));
}
}
WREG32(RLC_PG_AO_CU_MASK, tmp);
tmp = RREG32(RLC_MAX_PG_CU);
tmp &= ~MAX_PU_CU_MASK;
tmp |= MAX_PU_CU(active_cu_number);
WREG32(RLC_MAX_PG_CU, tmp);
}
static void si_enable_cgcg(struct radeon_device *rdev,
bool enable)
{
u32 data, orig, tmp;
orig = data = RREG32(RLC_CGCG_CGLS_CTRL);
si_enable_gui_idle_interrupt(rdev, enable);
if (enable) {
WREG32(RLC_GCPM_GENERAL_3, 0x00000080);
tmp = si_halt_rlc(rdev);
WREG32(RLC_SERDES_WR_MASTER_MASK_0, 0xffffffff);
WREG32(RLC_SERDES_WR_MASTER_MASK_1, 0xffffffff);
WREG32(RLC_SERDES_WR_CTRL, 0x00b000ff);
si_wait_for_rlc_serdes(rdev);
si_update_rlc(rdev, tmp);
WREG32(RLC_SERDES_WR_CTRL, 0x007000ff);
data |= CGCG_EN | CGLS_EN;
} else {
RREG32(CB_CGTT_SCLK_CTRL);
RREG32(CB_CGTT_SCLK_CTRL);
RREG32(CB_CGTT_SCLK_CTRL);
RREG32(CB_CGTT_SCLK_CTRL);
data &= ~(CGCG_EN | CGLS_EN);
}
if (orig != data)
WREG32(RLC_CGCG_CGLS_CTRL, data);
}
static void si_enable_mgcg(struct radeon_device *rdev,
bool enable)
{
u32 data, orig, tmp = 0;
if (enable) {
orig = data = RREG32(CGTS_SM_CTRL_REG);
data = 0x96940200;
if (orig != data)
WREG32(CGTS_SM_CTRL_REG, data);
orig = data = RREG32(CP_MEM_SLP_CNTL);
data |= CP_MEM_LS_EN;
if (orig != data)
WREG32(CP_MEM_SLP_CNTL, data);
orig = data = RREG32(RLC_CGTT_MGCG_OVERRIDE);
data &= 0xffffffc0;
if (orig != data)
WREG32(RLC_CGTT_MGCG_OVERRIDE, data);
tmp = si_halt_rlc(rdev);
WREG32(RLC_SERDES_WR_MASTER_MASK_0, 0xffffffff);
WREG32(RLC_SERDES_WR_MASTER_MASK_1, 0xffffffff);
WREG32(RLC_SERDES_WR_CTRL, 0x00d000ff);
si_update_rlc(rdev, tmp);
} else {
orig = data = RREG32(RLC_CGTT_MGCG_OVERRIDE);
data |= 0x00000003;
if (orig != data)
WREG32(RLC_CGTT_MGCG_OVERRIDE, data);
data = RREG32(CP_MEM_SLP_CNTL);
if (data & CP_MEM_LS_EN) {
data &= ~CP_MEM_LS_EN;
WREG32(CP_MEM_SLP_CNTL, data);
}
orig = data = RREG32(CGTS_SM_CTRL_REG);
data |= LS_OVERRIDE | OVERRIDE;
if (orig != data)
WREG32(CGTS_SM_CTRL_REG, data);
tmp = si_halt_rlc(rdev);
WREG32(RLC_SERDES_WR_MASTER_MASK_0, 0xffffffff);
WREG32(RLC_SERDES_WR_MASTER_MASK_1, 0xffffffff);
WREG32(RLC_SERDES_WR_CTRL, 0x00e000ff);
si_update_rlc(rdev, tmp);
}
}
static void si_enable_uvd_mgcg(struct radeon_device *rdev,
bool enable)
{
u32 orig, data, tmp;
if (enable) {
tmp = RREG32_UVD_CTX(UVD_CGC_MEM_CTRL);
tmp |= 0x3fff;
WREG32_UVD_CTX(UVD_CGC_MEM_CTRL, tmp);
orig = data = RREG32(UVD_CGC_CTRL);
data |= DCM;
if (orig != data)
WREG32(UVD_CGC_CTRL, data);
WREG32_SMC(SMC_CG_IND_START + CG_CGTT_LOCAL_0, 0);
WREG32_SMC(SMC_CG_IND_START + CG_CGTT_LOCAL_1, 0);
} else {
tmp = RREG32_UVD_CTX(UVD_CGC_MEM_CTRL);
tmp &= ~0x3fff;
WREG32_UVD_CTX(UVD_CGC_MEM_CTRL, tmp);
orig = data = RREG32(UVD_CGC_CTRL);
data &= ~DCM;
if (orig != data)
WREG32(UVD_CGC_CTRL, data);
WREG32_SMC(SMC_CG_IND_START + CG_CGTT_LOCAL_0, 0xffffffff);
WREG32_SMC(SMC_CG_IND_START + CG_CGTT_LOCAL_1, 0xffffffff);
}
}
static const u32 mc_cg_registers[] =
{
MC_HUB_MISC_HUB_CG,
MC_HUB_MISC_SIP_CG,
MC_HUB_MISC_VM_CG,
MC_XPB_CLK_GAT,
ATC_MISC_CG,
MC_CITF_MISC_WR_CG,
MC_CITF_MISC_RD_CG,
MC_CITF_MISC_VM_CG,
VM_L2_CG,
};
static void si_enable_mc_ls(struct radeon_device *rdev,
bool enable)
{
int i;
u32 orig, data;
for (i = 0; i < ARRAY_SIZE(mc_cg_registers); i++) {
orig = data = RREG32(mc_cg_registers[i]);
if (enable)
data |= MC_LS_ENABLE;
else
data &= ~MC_LS_ENABLE;
if (data != orig)
WREG32(mc_cg_registers[i], data);
}
}
static void si_init_cg(struct radeon_device *rdev)
{
bool has_uvd = true;
si_enable_mgcg(rdev, true);
si_enable_cgcg(rdev, true);
/* disable MC LS on Tahiti */
if (rdev->family == CHIP_TAHITI)
si_enable_mc_ls(rdev, false);
if (has_uvd) {
si_enable_uvd_mgcg(rdev, true);
si_init_uvd_internal_cg(rdev);
}
}
static void si_fini_cg(struct radeon_device *rdev)
{
bool has_uvd = true;
if (has_uvd)
si_enable_uvd_mgcg(rdev, false);
si_enable_cgcg(rdev, false);
si_enable_mgcg(rdev, false);
}
static void si_init_pg(struct radeon_device *rdev)
{
bool has_pg = false;
/* only cape verde supports PG */
if (rdev->family == CHIP_VERDE)
has_pg = true;
if (has_pg) {
si_init_ao_cu_mask(rdev);
si_init_dma_pg(rdev);
si_enable_dma_pg(rdev, true);
si_init_gfx_cgpg(rdev);
si_enable_gfx_cgpg(rdev, true);
} else {
WREG32(RLC_SAVE_AND_RESTORE_BASE, rdev->rlc.save_restore_gpu_addr >> 8);
WREG32(RLC_CLEAR_STATE_RESTORE_BASE, rdev->rlc.clear_state_gpu_addr >> 8);
}
}
static void si_fini_pg(struct radeon_device *rdev)
{
bool has_pg = false;
/* only cape verde supports PG */
if (rdev->family == CHIP_VERDE)
has_pg = true;
if (has_pg) {
si_enable_dma_pg(rdev, false);
si_enable_gfx_cgpg(rdev, false);
}
}
/*
* RLC
*/
@ -4715,47 +5159,16 @@ int si_rlc_init(struct radeon_device *rdev)
return 0;
}
static void si_enable_gui_idle_interrupt(struct radeon_device *rdev,
bool enable)
static void si_rlc_reset(struct radeon_device *rdev)
{
u32 tmp = RREG32(CP_INT_CNTL_RING0);
u32 mask;
int i;
u32 tmp = RREG32(GRBM_SOFT_RESET);
if (enable)
tmp |= (CNTX_BUSY_INT_ENABLE | CNTX_EMPTY_INT_ENABLE);
else
tmp &= ~(CNTX_BUSY_INT_ENABLE | CNTX_EMPTY_INT_ENABLE);
WREG32(CP_INT_CNTL_RING0, tmp);
if (!enable) {
/* read a gfx register */
tmp = RREG32(DB_DEPTH_INFO);
mask = RLC_BUSY_STATUS | GFX_POWER_STATUS | GFX_CLOCK_STATUS | GFX_LS_STATUS;
for (i = 0; i < rdev->usec_timeout; i++) {
if ((RREG32(RLC_STAT) & mask) == (GFX_CLOCK_STATUS | GFX_POWER_STATUS))
break;
udelay(1);
}
}
}
static void si_wait_for_rlc_serdes(struct radeon_device *rdev)
{
int i;
for (i = 0; i < rdev->usec_timeout; i++) {
if (RREG32(RLC_SERDES_MASTER_BUSY_0) == 0)
break;
udelay(1);
}
for (i = 0; i < rdev->usec_timeout; i++) {
if (RREG32(RLC_SERDES_MASTER_BUSY_1) == 0)
break;
udelay(1);
}
tmp |= SOFT_RESET_RLC;
WREG32(GRBM_SOFT_RESET, tmp);
udelay(50);
tmp &= ~SOFT_RESET_RLC;
WREG32(GRBM_SOFT_RESET, tmp);
udelay(50);
}
static void si_rlc_stop(struct radeon_device *rdev)
@ -4814,6 +5227,12 @@ static int si_rlc_resume(struct radeon_device *rdev)
si_rlc_stop(rdev);
si_rlc_reset(rdev);
si_init_pg(rdev);
si_init_cg(rdev);
WREG32(RLC_RL_BASE, 0);
WREG32(RLC_RL_SIZE, 0);
WREG32(RLC_LB_CNTL, 0);
@ -4821,9 +5240,6 @@ static int si_rlc_resume(struct radeon_device *rdev)
WREG32(RLC_LB_CNTR_INIT, 0);
WREG32(RLC_LB_INIT_CU_MASK, 0xffffffff);
WREG32(RLC_SAVE_AND_RESTORE_BASE, rdev->rlc.save_restore_gpu_addr >> 8);
WREG32(RLC_CLEAR_STATE_RESTORE_BASE, rdev->rlc.clear_state_gpu_addr >> 8);
WREG32(RLC_MC_CNTL, 0);
WREG32(RLC_UCODE_CNTL, 0);
@ -6041,6 +6457,8 @@ void si_fini(struct radeon_device *rdev)
cayman_dma_fini(rdev);
si_irq_fini(rdev);
si_rlc_fini(rdev);
si_fini_cg(rdev);
si_fini_pg(rdev);
radeon_wb_fini(rdev);
radeon_vm_manager_fini(rdev);
radeon_ib_pool_fini(rdev);

View File

@ -30,6 +30,12 @@
#define VERDE_GB_ADDR_CONFIG_GOLDEN 0x12010002
#define HAINAN_GB_ADDR_CONFIG_GOLDEN 0x02010001
/* CG IND registers are accessed via SMC indirect space + SMC_CG_IND_START */
#define SMC_CG_IND_START 0xc0030000
#define CG_CGTT_LOCAL_0 0x400
#define CG_CGTT_LOCAL_1 0x401
/* discrete uvd clocks */
#define CG_UPLL_FUNC_CNTL 0x634
# define UPLL_RESET_MASK 0x00000001
@ -224,6 +230,10 @@
#define VM_CONTEXT0_PAGE_TABLE_END_ADDR 0x157C
#define VM_CONTEXT1_PAGE_TABLE_END_ADDR 0x1580
#define VM_L2_CG 0x15c0
#define MC_CG_ENABLE (1 << 18)
#define MC_LS_ENABLE (1 << 19)
#define MC_SHARED_CHMAP 0x2004
#define NOOFCHAN_SHIFT 12
#define NOOFCHAN_MASK 0x0000f000
@ -249,6 +259,17 @@
#define MC_SHARED_BLACKOUT_CNTL 0x20ac
#define MC_HUB_MISC_HUB_CG 0x20b8
#define MC_HUB_MISC_VM_CG 0x20bc
#define MC_HUB_MISC_SIP_CG 0x20c0
#define MC_XPB_CLK_GAT 0x2478
#define MC_CITF_MISC_RD_CG 0x2648
#define MC_CITF_MISC_WR_CG 0x264c
#define MC_CITF_MISC_VM_CG 0x2650
#define MC_ARB_RAMCFG 0x2760
#define NOOFBANK_SHIFT 0
#define NOOFBANK_MASK 0x00000003
@ -289,6 +310,8 @@
#define HDP_MISC_CNTL 0x2F4C
#define HDP_FLUSH_INVALIDATE_CACHE (1 << 0)
#define ATC_MISC_CG 0x3350
#define IH_RB_CNTL 0x3e00
# define IH_RB_ENABLE (1 << 0)
# define IH_IB_SIZE(x) ((x) << 1) /* log2 */
@ -639,6 +662,9 @@
#define CGTS_USER_TCC_DISABLE 0x914C
#define TCC_DISABLE_MASK 0xFFFF0000
#define TCC_DISABLE_SHIFT 16
#define CGTS_SM_CTRL_REG 0x9150
#define OVERRIDE (1 << 21)
#define LS_OVERRIDE (1 << 22)
#define SPI_LB_CU_MASK 0x9354
@ -730,6 +756,8 @@
#define CB_PERFCOUNTER3_SELECT0 0x9a38
#define CB_PERFCOUNTER3_SELECT1 0x9a3c
#define CB_CGTT_SCLK_CTRL 0x9a60
#define GC_USER_RB_BACKEND_DISABLE 0x9B7C
#define BACKEND_DISABLE_MASK 0x00FF0000
#define BACKEND_DISABLE_SHIFT 16
@ -787,6 +815,9 @@
# define CP_RINGID1_INT_STAT (1 << 30)
# define CP_RINGID0_INT_STAT (1 << 31)
#define CP_MEM_SLP_CNTL 0xC1E4
# define CP_MEM_LS_EN (1 << 0)
#define CP_DEBUG 0xC1FC
#define RLC_CNTL 0xC300
@ -815,11 +846,49 @@
# define GFX_CLOCK_STATUS (1 << 2)
# define GFX_LS_STATUS (1 << 3)
#define RLC_PG_CNTL 0xC35C
# define GFX_PG_ENABLE (1 << 0)
# define GFX_PG_SRC (1 << 1)
#define RLC_CGTT_MGCG_OVERRIDE 0xC400
#define RLC_CGCG_CGLS_CTRL 0xC404
# define CGCG_EN (1 << 0)
# define CGLS_EN (1 << 1)
#define RLC_TTOP_D 0xC414
# define RLC_PUD(x) ((x) << 0)
# define RLC_PUD_MASK (0xff << 0)
# define RLC_PDD(x) ((x) << 8)
# define RLC_PDD_MASK (0xff << 8)
# define RLC_TTPD(x) ((x) << 16)
# define RLC_TTPD_MASK (0xff << 16)
# define RLC_MSD(x) ((x) << 24)
# define RLC_MSD_MASK (0xff << 24)
#define RLC_LB_INIT_CU_MASK 0xC41C
#define RLC_PG_AO_CU_MASK 0xC42C
#define RLC_MAX_PG_CU 0xC430
# define MAX_PU_CU(x) ((x) << 0)
# define MAX_PU_CU_MASK (0xff << 0)
#define RLC_AUTO_PG_CTRL 0xC434
# define AUTO_PG_EN (1 << 0)
# define GRBM_REG_SGIT(x) ((x) << 3)
# define GRBM_REG_SGIT_MASK (0xffff << 3)
# define PG_AFTER_GRBM_REG_ST(x) ((x) << 19)
# define PG_AFTER_GRBM_REG_ST_MASK (0x1fff << 19)
#define RLC_SERDES_WR_MASTER_MASK_0 0xC454
#define RLC_SERDES_WR_MASTER_MASK_1 0xC458
#define RLC_SERDES_WR_CTRL 0xC45C
#define RLC_SERDES_MASTER_BUSY_0 0xC464
#define RLC_SERDES_MASTER_BUSY_1 0xC468
#define RLC_GCPM_GENERAL_3 0xC478
#define DB_RENDER_CONTROL 0x28000
#define DB_DEPTH_INFO 0x2803c
#define PA_SC_RASTER_CONFIG 0x28350
@ -1016,6 +1085,21 @@
#define UVD_RBC_RB_RPTR 0xF690
#define UVD_RBC_RB_WPTR 0xF694
#define UVD_CGC_CTRL 0xF4B0
# define DCM (1 << 0)
# define CG_DT(x) ((x) << 2)
# define CG_DT_MASK (0xf << 2)
# define CLK_OD(x) ((x) << 6)
# define CLK_OD_MASK (0x1f << 6)
/* UVD CTX indirect */
#define UVD_CGC_MEM_CTRL 0xC0
#define UVD_CGC_CTRL2 0xC1
# define DYN_OR_EN (1 << 0)
# define DYN_RR_EN (1 << 1)
# define G_DIV_ID(x) ((x) << 2)
# define G_DIV_ID_MASK (0x7 << 2)
/*
* PM4
*/
@ -1260,6 +1344,11 @@
# define DMA_IDLE (1 << 0)
#define DMA_TILING_CONFIG 0xd0b8
#define DMA_PG 0xd0d4
# define PG_CNTL_ENABLE (1 << 0)
#define DMA_PGFSM_CONFIG 0xd0d8
#define DMA_PGFSM_WRITE 0xd0dc
#define DMA_PACKET(cmd, b, t, s, n) ((((cmd) & 0xF) << 28) | \
(((b) & 0x1) << 26) | \
(((t) & 0x1) << 23) | \