[PATCH 11/17] drm/amdgpu: teach amdgpu how to enable interrupts for any pipe v3
Andres Rodriguez
andresx7 at gmail.com
Mon Apr 17 22:48:07 UTC 2017
The current implementation is hardcoded to enable ME1/PIPE0 interrupts
only.
This patch allows amdgpu to enable interrupts for any pipe of ME1.
v2: added gfx9 support
v3: use soc15_grbm_select for gfx9
Acked-by: Felix Kuehling <Felix.Kuehling at amd.com>
Signed-off-by: Andres Rodriguez <andresx7 at gmail.com>
---
drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c | 48 ++++++++++++---------------------
drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c | 33 +++++++++++------------
drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c | 50 +++++++++++------------------------
3 files changed, 49 insertions(+), 82 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c
index 4a680fd..ce9d431 100644
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c
@@ -5049,76 +5049,62 @@ static void gfx_v7_0_set_gfx_eop_interrupt_state(struct amdgpu_device *adev,
switch (state) {
case AMDGPU_IRQ_STATE_DISABLE:
cp_int_cntl = RREG32(mmCP_INT_CNTL_RING0);
cp_int_cntl &= ~CP_INT_CNTL_RING0__TIME_STAMP_INT_ENABLE_MASK;
WREG32(mmCP_INT_CNTL_RING0, cp_int_cntl);
break;
case AMDGPU_IRQ_STATE_ENABLE:
cp_int_cntl = RREG32(mmCP_INT_CNTL_RING0);
cp_int_cntl |= CP_INT_CNTL_RING0__TIME_STAMP_INT_ENABLE_MASK;
WREG32(mmCP_INT_CNTL_RING0, cp_int_cntl);
break;
default:
break;
}
}
static void gfx_v7_0_set_compute_eop_interrupt_state(struct amdgpu_device *adev,
int me, int pipe,
enum amdgpu_interrupt_state state)
{
- u32 mec_int_cntl, mec_int_cntl_reg;
-
- /*
- * amdgpu controls only pipe 0 of MEC1. That's why this function only
- * handles the setting of interrupts for this specific pipe. All other
- * pipes' interrupts are set by amdkfd.
+ /* Me 0 is for graphics and Me 2 is reserved for HW scheduling
+ * So we should only really be configuring ME 1 i.e. MEC0
*/
-
- if (me == 1) {
- switch (pipe) {
- case 0:
- mec_int_cntl_reg = mmCP_ME1_PIPE0_INT_CNTL;
- break;
- default:
- DRM_DEBUG("invalid pipe %d\n", pipe);
- return;
- }
- } else {
- DRM_DEBUG("invalid me %d\n", me);
+ if (me != 1) {
+ DRM_ERROR("Ignoring request to enable interrupts for invalid me:%d\n", me);
return;
}
- switch (state) {
- case AMDGPU_IRQ_STATE_DISABLE:
- mec_int_cntl = RREG32(mec_int_cntl_reg);
- mec_int_cntl &= ~CP_INT_CNTL_RING0__TIME_STAMP_INT_ENABLE_MASK;
- WREG32(mec_int_cntl_reg, mec_int_cntl);
- break;
- case AMDGPU_IRQ_STATE_ENABLE:
- mec_int_cntl = RREG32(mec_int_cntl_reg);
- mec_int_cntl |= CP_INT_CNTL_RING0__TIME_STAMP_INT_ENABLE_MASK;
- WREG32(mec_int_cntl_reg, mec_int_cntl);
- break;
- default:
- break;
+ if (pipe >= adev->gfx.mec.num_pipe_per_mec) {
+ DRM_ERROR("Ignoring request to enable interrupts for invalid "
+ "me:%d pipe:%d\n", pipe, me);
+ return;
}
+
+ mutex_lock(&adev->srbm_mutex);
+ cik_srbm_select(adev, me, pipe, 0, 0);
+
+ WREG32_FIELD(CPC_INT_CNTL, TIME_STAMP_INT_ENABLE,
+ state == AMDGPU_IRQ_STATE_DISABLE ? 0 : 1);
+
+ cik_srbm_select(adev, 0, 0, 0, 0);
+ mutex_unlock(&adev->srbm_mutex);
}
static int gfx_v7_0_set_priv_reg_fault_state(struct amdgpu_device *adev,
struct amdgpu_irq_src *src,
unsigned type,
enum amdgpu_interrupt_state state)
{
u32 cp_int_cntl;
switch (state) {
case AMDGPU_IRQ_STATE_DISABLE:
cp_int_cntl = RREG32(mmCP_INT_CNTL_RING0);
cp_int_cntl &= ~CP_INT_CNTL_RING0__PRIV_REG_INT_ENABLE_MASK;
WREG32(mmCP_INT_CNTL_RING0, cp_int_cntl);
break;
case AMDGPU_IRQ_STATE_ENABLE:
cp_int_cntl = RREG32(mmCP_INT_CNTL_RING0);
cp_int_cntl |= CP_INT_CNTL_RING0__PRIV_REG_INT_ENABLE_MASK;
WREG32(mmCP_INT_CNTL_RING0, cp_int_cntl);
break;
diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
index fc94e2b..8cc9874 100644
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
@@ -6769,61 +6769,60 @@ static void gfx_v8_0_ring_emit_wreg(struct amdgpu_ring *ring, uint32_t reg,
uint32_t val)
{
amdgpu_ring_write(ring, PACKET3(PACKET3_WRITE_DATA, 3));
amdgpu_ring_write(ring, (1 << 16)); /* no inc addr */
amdgpu_ring_write(ring, reg);
amdgpu_ring_write(ring, 0);
amdgpu_ring_write(ring, val);
}
static void gfx_v8_0_set_gfx_eop_interrupt_state(struct amdgpu_device *adev,
enum amdgpu_interrupt_state state)
{
WREG32_FIELD(CP_INT_CNTL_RING0, TIME_STAMP_INT_ENABLE,
state == AMDGPU_IRQ_STATE_DISABLE ? 0 : 1);
}
static void gfx_v8_0_set_compute_eop_interrupt_state(struct amdgpu_device *adev,
int me, int pipe,
enum amdgpu_interrupt_state state)
{
- /*
- * amdgpu controls only pipe 0 of MEC1. That's why this function only
- * handles the setting of interrupts for this specific pipe. All other
- * pipes' interrupts are set by amdkfd.
- */
+ /* Me 0 is reserved for graphics */
+ if (me < 1 || me > adev->gfx.mec.num_mec) {
+ DRM_ERROR("Ignoring request to enable interrupts for invalid me:%d\n", me);
+ return;
+ }
- if (me == 1) {
- switch (pipe) {
- case 0:
- break;
- default:
- DRM_DEBUG("invalid pipe %d\n", pipe);
- return;
- }
- } else {
- DRM_DEBUG("invalid me %d\n", me);
+ if (pipe >= adev->gfx.mec.num_pipe_per_mec) {
+ DRM_ERROR("Ignoring request to enable interrupts for invalid "
+ "me:%d pipe:%d\n", pipe, me);
return;
}
- WREG32_FIELD(CP_ME1_PIPE0_INT_CNTL, TIME_STAMP_INT_ENABLE,
- state == AMDGPU_IRQ_STATE_DISABLE ? 0 : 1);
+ mutex_lock(&adev->srbm_mutex);
+ vi_srbm_select(adev, me, pipe, 0, 0);
+
+ WREG32_FIELD(CPC_INT_CNTL, TIME_STAMP_INT_ENABLE,
+ state == AMDGPU_IRQ_STATE_DISABLE ? 0 : 1);
+
+ vi_srbm_select(adev, 0, 0, 0, 0);
+ mutex_unlock(&adev->srbm_mutex);
}
static int gfx_v8_0_set_priv_reg_fault_state(struct amdgpu_device *adev,
struct amdgpu_irq_src *source,
unsigned type,
enum amdgpu_interrupt_state state)
{
WREG32_FIELD(CP_INT_CNTL_RING0, PRIV_REG_INT_ENABLE,
state == AMDGPU_IRQ_STATE_DISABLE ? 0 : 1);
return 0;
}
static int gfx_v8_0_set_priv_inst_fault_state(struct amdgpu_device *adev,
struct amdgpu_irq_src *source,
unsigned type,
enum amdgpu_interrupt_state state)
{
WREG32_FIELD(CP_INT_CNTL_RING0, PRIV_INSTR_INT_ENABLE,
state == AMDGPU_IRQ_STATE_DISABLE ? 0 : 1);
diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
index fef0fbf..6208493 100644
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
@@ -3257,78 +3257,60 @@ static void gfx_v9_0_ring_emit_wreg(struct amdgpu_ring *ring, uint32_t reg,
static void gfx_v9_0_set_gfx_eop_interrupt_state(struct amdgpu_device *adev,
enum amdgpu_interrupt_state state)
{
switch (state) {
case AMDGPU_IRQ_STATE_DISABLE:
case AMDGPU_IRQ_STATE_ENABLE:
WREG32_FIELD15(GC, 0, CP_INT_CNTL_RING0,
TIME_STAMP_INT_ENABLE,
state == AMDGPU_IRQ_STATE_ENABLE ? 1 : 0);
break;
default:
break;
}
}
static void gfx_v9_0_set_compute_eop_interrupt_state(struct amdgpu_device *adev,
int me, int pipe,
enum amdgpu_interrupt_state state)
{
- u32 mec_int_cntl, mec_int_cntl_reg;
-
- /*
- * amdgpu controls only pipe 0 of MEC1. That's why this function only
- * handles the setting of interrupts for this specific pipe. All other
- * pipes' interrupts are set by amdkfd.
- */
-
- if (me == 1) {
- switch (pipe) {
- case 0:
- mec_int_cntl_reg = SOC15_REG_OFFSET(GC, 0, mmCP_ME1_PIPE0_INT_CNTL);
- break;
- default:
- DRM_DEBUG("invalid pipe %d\n", pipe);
- return;
- }
- } else {
- DRM_DEBUG("invalid me %d\n", me);
+ /* Me 0 is reserved for graphics */
+ if (me < 1 || me > adev->gfx.mec.num_mec) {
+ DRM_ERROR("Ignoring request to enable interrupts for invalid me:%d\n", me);
return;
}
- switch (state) {
- case AMDGPU_IRQ_STATE_DISABLE:
- mec_int_cntl = RREG32(mec_int_cntl_reg);
- mec_int_cntl = REG_SET_FIELD(mec_int_cntl, CP_ME1_PIPE0_INT_CNTL,
- TIME_STAMP_INT_ENABLE, 0);
- WREG32(mec_int_cntl_reg, mec_int_cntl);
- break;
- case AMDGPU_IRQ_STATE_ENABLE:
- mec_int_cntl = RREG32(mec_int_cntl_reg);
- mec_int_cntl = REG_SET_FIELD(mec_int_cntl, CP_ME1_PIPE0_INT_CNTL,
- TIME_STAMP_INT_ENABLE, 1);
- WREG32(mec_int_cntl_reg, mec_int_cntl);
- break;
- default:
- break;
+ if (pipe >= adev->gfx.mec.num_pipe_per_mec) {
+ DRM_ERROR("Ignoring request to enable interrupts for invalid "
+ "me:%d pipe:%d\n", pipe, me);
+ return;
}
+
+ mutex_lock(&adev->srbm_mutex);
+ soc15_grbm_select(adev, me, pipe, 0, 0);
+
+ WREG32_FIELD(CPC_INT_CNTL, TIME_STAMP_INT_ENABLE,
+ state == AMDGPU_IRQ_STATE_DISABLE ? 0 : 1);
+
+ soc15_grbm_select(adev, 0, 0, 0, 0);
+ mutex_unlock(&adev->srbm_mutex);
}
static int gfx_v9_0_set_priv_reg_fault_state(struct amdgpu_device *adev,
struct amdgpu_irq_src *source,
unsigned type,
enum amdgpu_interrupt_state state)
{
switch (state) {
case AMDGPU_IRQ_STATE_DISABLE:
case AMDGPU_IRQ_STATE_ENABLE:
WREG32_FIELD15(GC, 0, CP_INT_CNTL_RING0,
PRIV_REG_INT_ENABLE,
state == AMDGPU_IRQ_STATE_ENABLE ? 1 : 0);
break;
default:
break;
}
return 0;
}
--
2.9.3
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