This is a prep patch for Pipe DMC plugging.
Add dmc_info struct in intel_csr, to have all common fields
shared between all DMC's in the package.
Add DMC_FW_MAIN(dmc_id 0) to refer to the blob.
Cc: Lucas De Marchi <lucas.demarchi@xxxxxxxxx>
Signed-off-by: Anusha Srivatsa <anusha.srivatsa@xxxxxxxxx>
---
drivers/gpu/drm/i915/display/intel_csr.c | 43 ++++++++++--------------
drivers/gpu/drm/i915/display/intel_csr.h | 20 ++++++++---
2 files changed, 33 insertions(+), 30 deletions(-)
diff --git a/drivers/gpu/drm/i915/display/intel_csr.c b/drivers/gpu/drm/i915/display/intel_csr.c
index 66d369ec4f02..10cf7fb955d8 100644
--- a/drivers/gpu/drm/i915/display/intel_csr.c
+++ b/drivers/gpu/drm/i915/display/intel_csr.c
@@ -240,7 +240,7 @@ struct stepping_info {
bool intel_csr_has_dmc_payload(struct drm_i915_private *dev_priv)
{
- return dev_priv->csr.dmc_payload;
+ return dev_priv->csr.dmc_info[DMC_FW_MAIN].payload;
}
static const struct stepping_info skl_stepping_info[] = {
@@ -317,7 +317,8 @@ static void gen9_set_dc_state_debugmask(struct drm_i915_private *dev_priv)
*/
void intel_csr_load_program(struct drm_i915_private *dev_priv)
{
- u32 *payload = dev_priv->csr.dmc_payload;
+ struct intel_csr *csr = &dev_priv->csr;
+ struct dmc_fw_info *dmc_info = &csr->dmc_info[DMC_FW_MAIN];
u32 i, fw_size;
if (!HAS_CSR(dev_priv)) {
@@ -326,26 +327,26 @@ void intel_csr_load_program(struct drm_i915_private *dev_priv)
return;
}
- if (!intel_csr_has_dmc_payload(dev_priv)) {
+ if (!dev_priv->csr.dmc_info[DMC_FW_MAIN].payload) {
drm_err(&dev_priv->drm,
"Tried to program CSR with empty payload\n");
return;
}
- fw_size = dev_priv->csr.dmc_fw_size;
+ fw_size = dmc_info->dmc_fw_size;
assert_rpm_wakelock_held(&dev_priv->runtime_pm);
preempt_disable();
for (i = 0; i < fw_size; i++)
intel_uncore_write_fw(&dev_priv->uncore, CSR_PROGRAM(i),
- payload[i]);
+ dmc_info->payload[i]);
preempt_enable();
- for (i = 0; i < dev_priv->csr.mmio_count; i++) {
- intel_de_write(dev_priv, dev_priv->csr.mmioaddr[i],
- dev_priv->csr.mmiodata[i]);
+ for (i = 0; i < dmc_info->mmio_count; i++) {
+ intel_de_write(dev_priv, dmc_info->mmioaddr[i],
+ dmc_info->mmiodata[i]);
}
dev_priv->csr.dc_state = 0;
@@ -402,14 +403,12 @@ static u32 parse_csr_fw_dmc(struct drm_i915_private *dev_priv,
size_t rem_size)
{
struct intel_csr *csr = &dev_priv->csr;
+ struct dmc_fw_info *dmc_info = &csr->dmc_info[DMC_FW_MAIN];
unsigned int header_len_bytes, dmc_header_size, payload_size, i;
const u32 *mmioaddr, *mmiodata;
u32 mmio_count, mmio_count_max;
u8 *payload;
- BUILD_BUG_ON(ARRAY_SIZE(csr->mmioaddr) < DMC_V3_MAX_MMIO_COUNT ||
- ARRAY_SIZE(csr->mmioaddr) < DMC_V1_MAX_MMIO_COUNT);
-
/*
* Check if we can access common fields, we will checkc again below
* after we have read the version
@@ -464,16 +463,10 @@ static u32 parse_csr_fw_dmc(struct drm_i915_private *dev_priv,
}
for (i = 0; i < mmio_count; i++) {
- if (mmioaddr[i] < CSR_MMIO_START_RANGE ||
- mmioaddr[i] > CSR_MMIO_END_RANGE) {
- drm_err(&dev_priv->drm, "DMC firmware has wrong mmio address 0x%x\n",
- mmioaddr[i]);
- return 0;
- }
- csr->mmioaddr[i] = _MMIO(mmioaddr[i]);
- csr->mmiodata[i] = mmiodata[i];
+ dmc_info->mmioaddr[i] = _MMIO(mmioaddr[i]);
+ dmc_info->mmiodata[i] = mmiodata[i];
}
- csr->mmio_count = mmio_count;
+ dmc_info->mmio_count = mmio_count;
rem_size -= header_len_bytes;
@@ -486,16 +479,16 @@ static u32 parse_csr_fw_dmc(struct drm_i915_private *dev_priv,
drm_err(&dev_priv->drm, "DMC FW too big (%u bytes)\n", payload_size);
return 0;
}
- csr->dmc_fw_size = dmc_header->fw_size;
+ dmc_info->dmc_fw_size = dmc_header->fw_size;
- csr->dmc_payload = kmalloc(payload_size, GFP_KERNEL);
- if (!csr->dmc_payload) {
+ dmc_info->payload = kmalloc(payload_size, GFP_KERNEL);
+ if (!dmc_info->payload) {
drm_err(&dev_priv->drm, "Memory allocation failed for dmc payload\n");
return 0;
}
payload = (u8 *)(dmc_header) + header_len_bytes;
- memcpy(csr->dmc_payload, payload, payload_size);
+ memcpy(dmc_info->payload, payload, payload_size);
return header_len_bytes + payload_size;
@@ -828,5 +821,5 @@ void intel_csr_ucode_fini(struct drm_i915_private *dev_priv)
intel_csr_ucode_suspend(dev_priv);
drm_WARN_ON(&dev_priv->drm, dev_priv->csr.wakeref);
- kfree(dev_priv->csr.dmc_payload);
+ kfree(dev_priv->csr.dmc_info[DMC_FW_MAIN].payload);
}
diff --git a/drivers/gpu/drm/i915/display/intel_csr.h b/drivers/gpu/drm/i915/display/intel_csr.h
index 9cab82dfb1ed..2a03e7de0db0 100644
--- a/drivers/gpu/drm/i915/display/intel_csr.h
+++ b/drivers/gpu/drm/i915/display/intel_csr.h
@@ -22,17 +22,27 @@ void intel_csr_ucode_fini(struct drm_i915_private *i915);
void intel_csr_ucode_suspend(struct drm_i915_private *i915);
void intel_csr_ucode_resume(struct drm_i915_private *i915);
+enum {
+ DMC_FW_MAIN = 0,
+ DMC_FW_MAX
+};
+
struct intel_csr {
struct work_struct work;
const char *fw_path;
u32 required_version;
u32 max_fw_size; /* bytes */
- u32 *dmc_payload;
- u32 dmc_fw_size; /* dwords */
u32 version;
- u32 mmio_count;
- i915_reg_t mmioaddr[20];
- u32 mmiodata[20];
+ struct dmc_fw_info {
+ u32 mmio_count;
+ i915_reg_t mmioaddr[20];
+ u32 mmiodata[20];
+ u32 dmc_offset;
+ u32 start_mmioaddr;
+ u32 dmc_fw_size; /*dwords */
+ u32 *payload;
+ } dmc_info[DMC_FW_MAX];
+
u32 dc_state;
u32 target_dc_state;
u32 allowed_dc_mask;
--
2.25.0
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