@@ -22,6 +22,69 @@
*/
#define GSI_EE_REG_ADJUST 0x0000d000 /* IPA v4.5+ */
+/* Is this register ID valid for the current GSI version? */
+static bool gsi_reg_id_valid(struct gsi *gsi, enum gsi_reg_id reg_id)
+{
+ switch (reg_id) {
+ case INTER_EE_SRC_CH_IRQ_MSK:
+ case INTER_EE_SRC_EV_CH_IRQ_MSK:
+ case CH_C_CNTXT_0:
+ case CH_C_CNTXT_1:
+ case CH_C_CNTXT_2:
+ case CH_C_CNTXT_3:
+ case CH_C_QOS:
+ case CH_C_SCRATCH_0:
+ case CH_C_SCRATCH_1:
+ case CH_C_SCRATCH_2:
+ case CH_C_SCRATCH_3:
+ case EV_CH_E_CNTXT_0:
+ case EV_CH_E_CNTXT_1:
+ case EV_CH_E_CNTXT_2:
+ case EV_CH_E_CNTXT_3:
+ case EV_CH_E_CNTXT_4:
+ case EV_CH_E_CNTXT_8:
+ case EV_CH_E_CNTXT_9:
+ case EV_CH_E_CNTXT_10:
+ case EV_CH_E_CNTXT_11:
+ case EV_CH_E_CNTXT_12:
+ case EV_CH_E_CNTXT_13:
+ case EV_CH_E_SCRATCH_0:
+ case EV_CH_E_SCRATCH_1:
+ case CH_C_DOORBELL_0:
+ case EV_CH_E_DOORBELL_0:
+ case GSI_STATUS:
+ case CH_CMD:
+ case EV_CH_CMD:
+ case GENERIC_CMD:
+ case HW_PARAM_2:
+ case CNTXT_TYPE_IRQ:
+ case CNTXT_TYPE_IRQ_MSK:
+ case CNTXT_SRC_CH_IRQ:
+ case CNTXT_SRC_CH_IRQ_MSK:
+ case CNTXT_SRC_CH_IRQ_CLR:
+ case CNTXT_SRC_EV_CH_IRQ:
+ case CNTXT_SRC_EV_CH_IRQ_MSK:
+ case CNTXT_SRC_EV_CH_IRQ_CLR:
+ case CNTXT_SRC_IEOB_IRQ:
+ case CNTXT_SRC_IEOB_IRQ_MSK:
+ case CNTXT_SRC_IEOB_IRQ_CLR:
+ case CNTXT_GLOB_IRQ_STTS:
+ case CNTXT_GLOB_IRQ_EN:
+ case CNTXT_GLOB_IRQ_CLR:
+ case CNTXT_GSI_IRQ_STTS:
+ case CNTXT_GSI_IRQ_EN:
+ case CNTXT_GSI_IRQ_CLR:
+ case CNTXT_INTSET:
+ case ERROR_LOG:
+ case ERROR_LOG_CLR:
+ case CNTXT_SCRATCH_0:
+ return true;
+
+ default:
+ return false;
+ }
+}
+
/* Sets gsi->virt_raw and gsi->virt, and I/O maps the "gsi" memory range */
int gsi_reg_init(struct gsi *gsi, struct platform_device *pdev)
{
@@ -30,6 +93,8 @@ int gsi_reg_init(struct gsi *gsi, struct platform_device *pdev)
resource_size_t size;
u32 adjust;
+ (void)gsi_reg_id_valid; /* Avoid a warning */
+
/* Get GSI memory range and map it */
res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "gsi");
if (!res) {
@@ -38,6 +38,63 @@
* (though the actual limit is hardware-dependent).
*/
+/* enum gsi_reg_id - GSI register IDs */
+enum gsi_reg_id {
+ INTER_EE_SRC_CH_IRQ_MSK, /* IPA v3.5+ */
+ INTER_EE_SRC_EV_CH_IRQ_MSK, /* IPA v3.5+ */
+ CH_C_CNTXT_0,
+ CH_C_CNTXT_1,
+ CH_C_CNTXT_2,
+ CH_C_CNTXT_3,
+ CH_C_QOS,
+ CH_C_SCRATCH_0,
+ CH_C_SCRATCH_1,
+ CH_C_SCRATCH_2,
+ CH_C_SCRATCH_3,
+ EV_CH_E_CNTXT_0,
+ EV_CH_E_CNTXT_1,
+ EV_CH_E_CNTXT_2,
+ EV_CH_E_CNTXT_3,
+ EV_CH_E_CNTXT_4,
+ EV_CH_E_CNTXT_8,
+ EV_CH_E_CNTXT_9,
+ EV_CH_E_CNTXT_10,
+ EV_CH_E_CNTXT_11,
+ EV_CH_E_CNTXT_12,
+ EV_CH_E_CNTXT_13,
+ EV_CH_E_SCRATCH_0,
+ EV_CH_E_SCRATCH_1,
+ CH_C_DOORBELL_0,
+ EV_CH_E_DOORBELL_0,
+ GSI_STATUS,
+ CH_CMD,
+ EV_CH_CMD,
+ GENERIC_CMD,
+ HW_PARAM_2, /* IPA v3.5.1+ */
+ CNTXT_TYPE_IRQ,
+ CNTXT_TYPE_IRQ_MSK,
+ CNTXT_SRC_CH_IRQ,
+ CNTXT_SRC_CH_IRQ_MSK,
+ CNTXT_SRC_CH_IRQ_CLR,
+ CNTXT_SRC_EV_CH_IRQ,
+ CNTXT_SRC_EV_CH_IRQ_MSK,
+ CNTXT_SRC_EV_CH_IRQ_CLR,
+ CNTXT_SRC_IEOB_IRQ,
+ CNTXT_SRC_IEOB_IRQ_MSK,
+ CNTXT_SRC_IEOB_IRQ_CLR,
+ CNTXT_GLOB_IRQ_STTS,
+ CNTXT_GLOB_IRQ_EN,
+ CNTXT_GLOB_IRQ_CLR,
+ CNTXT_GSI_IRQ_STTS,
+ CNTXT_GSI_IRQ_EN,
+ CNTXT_GSI_IRQ_CLR,
+ CNTXT_INTSET,
+ ERROR_LOG,
+ ERROR_LOG_CLR,
+ CNTXT_SCRATCH_0,
+ GSI_REG_ID_COUNT, /* Last; not an ID */
+};
+
/* The inter-EE IRQ registers are relative to gsi->virt_raw (IPA v3.5+) */
#define GSI_INTER_EE_SRC_CH_IRQ_MSK_OFFSET \
Create a new gsi_reg_id enumerated type, which identifies each GSI register with a symbolic identifier. Create a function that indicates whether a register ID is valid. Signed-off-by: Alex Elder <elder@linaro.org> --- drivers/net/ipa/gsi_reg.c | 65 +++++++++++++++++++++++++++++++++++++++ drivers/net/ipa/gsi_reg.h | 57 ++++++++++++++++++++++++++++++++++ 2 files changed, 122 insertions(+)