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From 9a7ad545ad15335f2d61647cba82ec6bfe9fbcf4 Mon Sep 17 00:00:00 2001
From: Alex Deucher <alexander.deucher@amd.com>
Date: Thu, 7 Apr 2016 22:57:39 -0400
Subject: [PATCH 0496/1110] drm/amdgpu/gfx: rework fiji cg functions so they
can be shared
They can be shared with other asics with minor modifications.
Acked-by: Tom St Denis <tom.stdenis@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
---
drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c | 218 +++++++++++++++++++++++++++++++---
1 file changed, 202 insertions(+), 16 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
index 14c75fe..83ceafa 100644
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
@@ -558,6 +558,7 @@ static const u32 stoney_mgcg_cgcg_init[] =
static void gfx_v8_0_set_ring_funcs(struct amdgpu_device *adev);
static void gfx_v8_0_set_irq_funcs(struct amdgpu_device *adev);
static void gfx_v8_0_set_gds_init(struct amdgpu_device *adev);
+static void gfx_v8_0_set_rlc_funcs(struct amdgpu_device *adev);
static void gfx_v8_0_init_golden_registers(struct amdgpu_device *adev)
{
@@ -4250,6 +4251,7 @@ static int gfx_v8_0_early_init(void *handle)
gfx_v8_0_set_ring_funcs(adev);
gfx_v8_0_set_irq_funcs(adev);
gfx_v8_0_set_gds_init(adev);
+ gfx_v8_0_set_rlc_funcs(adev);
return 0;
}
@@ -4322,11 +4324,166 @@ static void gfx_v8_0_send_serdes_cmd(struct amdgpu_device *adev,
WREG32(mmRLC_SERDES_WR_CTRL, data);
}
-static void fiji_update_medium_grain_clock_gating(struct amdgpu_device *adev,
- bool enable)
+#define MSG_ENTER_RLC_SAFE_MODE 1
+#define MSG_EXIT_RLC_SAFE_MODE 0
+
+#define RLC_GPR_REG2__REQ_MASK 0x00000001
+#define RLC_GPR_REG2__MESSAGE__SHIFT 0x00000001
+#define RLC_GPR_REG2__MESSAGE_MASK 0x0000001e
+
+static void cz_enter_rlc_safe_mode(struct amdgpu_device *adev)
+{
+ u32 data = 0;
+ unsigned i;
+
+ data = RREG32(mmRLC_CNTL);
+ if ((data & RLC_CNTL__RLC_ENABLE_F32_MASK) == 0)
+ return;
+
+ if ((adev->cg_flags & (AMD_CG_SUPPORT_GFX_CGCG | AMD_CG_SUPPORT_GFX_MGCG)) ||
+ (adev->pg_flags & (AMD_PG_SUPPORT_GFX_PG | AMD_PG_SUPPORT_GFX_SMG |
+ AMD_PG_SUPPORT_GFX_DMG))) {
+ data |= RLC_GPR_REG2__REQ_MASK;
+ data &= ~RLC_GPR_REG2__MESSAGE_MASK;
+ data |= (MSG_ENTER_RLC_SAFE_MODE << RLC_GPR_REG2__MESSAGE__SHIFT);
+ WREG32(mmRLC_GPR_REG2, data);
+
+ for (i = 0; i < adev->usec_timeout; i++) {
+ if ((RREG32(mmRLC_GPM_STAT) &
+ (RLC_GPM_STAT__GFX_CLOCK_STATUS_MASK |
+ RLC_GPM_STAT__GFX_POWER_STATUS_MASK)) ==
+ (RLC_GPM_STAT__GFX_CLOCK_STATUS_MASK |
+ RLC_GPM_STAT__GFX_POWER_STATUS_MASK))
+ break;
+ udelay(1);
+ }
+
+ for (i = 0; i < adev->usec_timeout; i++) {
+ if ((RREG32(mmRLC_GPR_REG2) & RLC_GPR_REG2__REQ_MASK) == 0)
+ break;
+ udelay(1);
+ }
+ adev->gfx.rlc.in_safe_mode = true;
+ }
+}
+
+static void cz_exit_rlc_safe_mode(struct amdgpu_device *adev)
+{
+ u32 data;
+ unsigned i;
+
+ data = RREG32(mmRLC_CNTL);
+ if ((data & RLC_CNTL__RLC_ENABLE_F32_MASK) == 0)
+ return;
+
+ if ((adev->cg_flags & (AMD_CG_SUPPORT_GFX_CGCG | AMD_CG_SUPPORT_GFX_MGCG)) ||
+ (adev->pg_flags & (AMD_PG_SUPPORT_GFX_PG | AMD_PG_SUPPORT_GFX_SMG |
+ AMD_PG_SUPPORT_GFX_DMG))) {
+ data |= RLC_GPR_REG2__REQ_MASK;
+ data &= ~RLC_GPR_REG2__MESSAGE_MASK;
+ data |= (MSG_EXIT_RLC_SAFE_MODE << RLC_GPR_REG2__MESSAGE__SHIFT);
+ WREG32(mmRLC_GPR_REG2, data);
+ adev->gfx.rlc.in_safe_mode = false;
+ }
+
+ for (i = 0; i < adev->usec_timeout; i++) {
+ if ((RREG32(mmRLC_GPR_REG2) & RLC_GPR_REG2__REQ_MASK) == 0)
+ break;
+ udelay(1);
+ }
+}
+
+static void iceland_enter_rlc_safe_mode(struct amdgpu_device *adev)
+{
+ u32 data;
+ unsigned i;
+
+ data = RREG32(mmRLC_CNTL);
+ if (!(data & RLC_CNTL__RLC_ENABLE_F32_MASK))
+ return;
+
+ if (adev->cg_flags & (AMD_CG_SUPPORT_GFX_CGCG | AMD_CG_SUPPORT_GFX_MGCG)) {
+ data |= RLC_SAFE_MODE__CMD_MASK;
+ data &= ~RLC_SAFE_MODE__MESSAGE_MASK;
+ data |= (1 << RLC_SAFE_MODE__MESSAGE__SHIFT);
+ WREG32(mmRLC_SAFE_MODE, data);
+
+ for (i = 0; i < adev->usec_timeout; i++) {
+ if ((RREG32(mmRLC_GPM_STAT) &
+ (RLC_GPM_STAT__GFX_CLOCK_STATUS_MASK |
+ RLC_GPM_STAT__GFX_POWER_STATUS_MASK)) ==
+ (RLC_GPM_STAT__GFX_CLOCK_STATUS_MASK |
+ RLC_GPM_STAT__GFX_POWER_STATUS_MASK))
+ break;
+ udelay(1);
+ }
+
+ for (i = 0; i < adev->usec_timeout; i++) {
+ if ((RREG32(mmRLC_SAFE_MODE) & RLC_SAFE_MODE__CMD_MASK) == 0)
+ break;
+ udelay(1);
+ }
+ adev->gfx.rlc.in_safe_mode = true;
+ }
+}
+
+static void iceland_exit_rlc_safe_mode(struct amdgpu_device *adev)
+{
+ u32 data = 0;
+ unsigned i;
+
+ data = RREG32(mmRLC_CNTL);
+ if (!(data & RLC_CNTL__RLC_ENABLE_F32_MASK))
+ return;
+
+ if (adev->cg_flags & (AMD_CG_SUPPORT_GFX_CGCG | AMD_CG_SUPPORT_GFX_MGCG)) {
+ if (adev->gfx.rlc.in_safe_mode) {
+ data |= RLC_SAFE_MODE__CMD_MASK;
+ data &= ~RLC_SAFE_MODE__MESSAGE_MASK;
+ WREG32(mmRLC_SAFE_MODE, data);
+ adev->gfx.rlc.in_safe_mode = false;
+ }
+ }
+
+ for (i = 0; i < adev->usec_timeout; i++) {
+ if ((RREG32(mmRLC_SAFE_MODE) & RLC_SAFE_MODE__CMD_MASK) == 0)
+ break;
+ udelay(1);
+ }
+}
+
+static void gfx_v8_0_nop_enter_rlc_safe_mode(struct amdgpu_device *adev)
+{
+ adev->gfx.rlc.in_safe_mode = true;
+}
+
+static void gfx_v8_0_nop_exit_rlc_safe_mode(struct amdgpu_device *adev)
+{
+ adev->gfx.rlc.in_safe_mode = false;
+}
+
+static const struct amdgpu_rlc_funcs cz_rlc_funcs = {
+ .enter_safe_mode = cz_enter_rlc_safe_mode,
+ .exit_safe_mode = cz_exit_rlc_safe_mode
+};
+
+static const struct amdgpu_rlc_funcs iceland_rlc_funcs = {
+ .enter_safe_mode = iceland_enter_rlc_safe_mode,
+ .exit_safe_mode = iceland_exit_rlc_safe_mode
+};
+
+static const struct amdgpu_rlc_funcs gfx_v8_0_nop_rlc_funcs = {
+ .enter_safe_mode = gfx_v8_0_nop_enter_rlc_safe_mode,
+ .exit_safe_mode = gfx_v8_0_nop_exit_rlc_safe_mode
+};
+
+static void gfx_v8_0_update_medium_grain_clock_gating(struct amdgpu_device *adev,
+ bool enable)
{
uint32_t temp, data;
+ adev->gfx.rlc.funcs->enter_safe_mode(adev);
+
/* It is disabled by HW by default */
if (enable && (adev->cg_flags & AMD_CG_SUPPORT_GFX_MGCG)) {
if (adev->cg_flags & AMD_CG_SUPPORT_GFX_MGLS) {
@@ -4349,10 +4506,15 @@ static void fiji_update_medium_grain_clock_gating(struct amdgpu_device *adev,
/* 3 - RLC_CGTT_MGCG_OVERRIDE */
temp = data = RREG32(mmRLC_CGTT_MGCG_OVERRIDE);
- data &= ~(RLC_CGTT_MGCG_OVERRIDE__CPF_MASK |
- RLC_CGTT_MGCG_OVERRIDE__RLC_MASK |
- RLC_CGTT_MGCG_OVERRIDE__MGCG_MASK |
- RLC_CGTT_MGCG_OVERRIDE__GRBM_MASK);
+ if (adev->flags & AMD_IS_APU)
+ data &= ~(RLC_CGTT_MGCG_OVERRIDE__CPF_MASK |
+ RLC_CGTT_MGCG_OVERRIDE__RLC_MASK |
+ RLC_CGTT_MGCG_OVERRIDE__MGCG_MASK);
+ else
+ data &= ~(RLC_CGTT_MGCG_OVERRIDE__CPF_MASK |
+ RLC_CGTT_MGCG_OVERRIDE__RLC_MASK |
+ RLC_CGTT_MGCG_OVERRIDE__MGCG_MASK |
+ RLC_CGTT_MGCG_OVERRIDE__GRBM_MASK);
if (temp != data)
WREG32(mmRLC_CGTT_MGCG_OVERRIDE, data);
@@ -4424,15 +4586,19 @@ static void fiji_update_medium_grain_clock_gating(struct amdgpu_device *adev,
/* 7- wait for RLC_SERDES_CU_MASTER & RLC_SERDES_NONCU_MASTER idle */
gfx_v8_0_wait_for_rlc_serdes(adev);
}
+
+ adev->gfx.rlc.funcs->exit_safe_mode(adev);
}
-static void fiji_update_coarse_grain_clock_gating(struct amdgpu_device *adev,
- bool enable)
+static void gfx_v8_0_update_coarse_grain_clock_gating(struct amdgpu_device *adev,
+ bool enable)
{
uint32_t temp, temp1, data, data1;
temp = data = RREG32(mmRLC_CGCG_CGLS_CTRL);
+ adev->gfx.rlc.funcs->enter_safe_mode(adev);
+
if (enable && (adev->cg_flags & AMD_CG_SUPPORT_GFX_CGCG)) {
/* 1 enable cntx_empty_int_enable/cntx_busy_int_enable/
* Cmp_busy/GFX_Idle interrupts
@@ -4509,22 +4675,24 @@ static void fiji_update_coarse_grain_clock_gating(struct amdgpu_device *adev,
if (temp != data)
WREG32(mmRLC_CGCG_CGLS_CTRL, data);
}
+
+ adev->gfx.rlc.funcs->exit_safe_mode(adev);
}
-static int fiji_update_gfx_clock_gating(struct amdgpu_device *adev,
- bool enable)
+static int gfx_v8_0_update_gfx_clock_gating(struct amdgpu_device *adev,
+ bool enable)
{
if (enable) {
/* CGCG/CGLS should be enabled after MGCG/MGLS/TS(CG/LS)
* === MGCG + MGLS + TS(CG/LS) ===
*/
- fiji_update_medium_grain_clock_gating(adev, enable);
- fiji_update_coarse_grain_clock_gating(adev, enable);
+ gfx_v8_0_update_medium_grain_clock_gating(adev, enable);
+ gfx_v8_0_update_coarse_grain_clock_gating(adev, enable);
} else {
/* CGCG/CGLS should be disabled before MGCG/MGLS/TS(CG/LS)
* === CGCG + CGLS ===
*/
- fiji_update_coarse_grain_clock_gating(adev, enable);
- fiji_update_medium_grain_clock_gating(adev, enable);
+ gfx_v8_0_update_coarse_grain_clock_gating(adev, enable);
+ gfx_v8_0_update_medium_grain_clock_gating(adev, enable);
}
return 0;
}
@@ -4536,8 +4704,10 @@ static int gfx_v8_0_set_clockgating_state(void *handle,
switch (adev->asic_type) {
case CHIP_FIJI:
- fiji_update_gfx_clock_gating(adev,
- state == AMD_CG_STATE_GATE ? true : false);
+ case CHIP_CARRIZO:
+ case CHIP_STONEY:
+ gfx_v8_0_update_gfx_clock_gating(adev,
+ state == AMD_CG_STATE_GATE ? true : false);
break;
default:
break;
@@ -5137,6 +5307,22 @@ static void gfx_v8_0_set_irq_funcs(struct amdgpu_device *adev)
adev->gfx.priv_inst_irq.funcs = &gfx_v8_0_priv_inst_irq_funcs;
}
+static void gfx_v8_0_set_rlc_funcs(struct amdgpu_device *adev)
+{
+ switch (adev->asic_type) {
+ case CHIP_TOPAZ:
+ case CHIP_STONEY:
+ adev->gfx.rlc.funcs = &iceland_rlc_funcs;
+ break;
+ case CHIP_CARRIZO:
+ adev->gfx.rlc.funcs = &cz_rlc_funcs;
+ break;
+ default:
+ adev->gfx.rlc.funcs = &gfx_v8_0_nop_rlc_funcs;
+ break;
+ }
+}
+
static void gfx_v8_0_set_gds_init(struct amdgpu_device *adev)
{
/* init asci gds info */
--
2.7.4
|
