drm/radeon: switch get_gpu_clock() to a callback (v2)

Cleans up the code for future asics

v2: rebase, fix some missing radeon_asic updates
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/radeon/r600.c

@@ -4461,14 +4461,14 @@ static void r600_pcie_gen2_enable(struct radeon_device *rdev)
 }
 
 /**
- * r600_get_gpu_clock - return GPU clock counter snapshot
+ * r600_get_gpu_clock_counter - return GPU clock counter snapshot
  *
  * @rdev: radeon_device pointer
  *
  * Fetches a GPU clock counter snapshot (R6xx-cayman).
  * Returns the 64 bit clock counter snapshot.
  */
-uint64_t r600_get_gpu_clock(struct radeon_device *rdev)
+uint64_t r600_get_gpu_clock_counter(struct radeon_device *rdev)
 {
 	uint64_t clock;
 

drivers/gpu/drm/radeon/radeon.h

@@ -1181,6 +1181,8 @@ struct radeon_asic {
 	int (*mc_wait_for_idle)(struct radeon_device *rdev);
 	/* get the reference clock */
 	u32 (*get_xclk)(struct radeon_device *rdev);
+	/* get the gpu clock counter */
+	uint64_t (*get_gpu_clock_counter)(struct radeon_device *rdev);
 	/* gart */
 	struct {
 		void (*tlb_flush)(struct radeon_device *rdev);
@@ -1863,6 +1865,7 @@ void radeon_ring_write(struct radeon_ring *ring, uint32_t v);
 #define radeon_wait_for_vblank(rdev, crtc) (rdev)->asic->display.wait_for_vblank((rdev), (crtc))
 #define radeon_mc_wait_for_idle(rdev) (rdev)->asic->mc_wait_for_idle((rdev))
 #define radeon_get_xclk(rdev) (rdev)->asic->get_xclk((rdev))
+#define radeon_get_gpu_clock_counter(rdev) (rdev)->asic->get_gpu_clock_counter((rdev))
 
 /* Common functions */
 /* AGP */

drivers/gpu/drm/radeon/radeon_asic.c

@@ -935,6 +935,7 @@ static struct radeon_asic r600_asic = {
 	.gui_idle = &r600_gui_idle,
 	.mc_wait_for_idle = &r600_mc_wait_for_idle,
 	.get_xclk = &r600_get_xclk,
+	.get_gpu_clock_counter = &r600_get_gpu_clock_counter,
 	.gart = {
 		.tlb_flush = &r600_pcie_gart_tlb_flush,
 		.set_page = &rs600_gart_set_page,
@@ -1020,6 +1021,7 @@ static struct radeon_asic rs780_asic = {
 	.gui_idle = &r600_gui_idle,
 	.mc_wait_for_idle = &r600_mc_wait_for_idle,
 	.get_xclk = &r600_get_xclk,
+	.get_gpu_clock_counter = &r600_get_gpu_clock_counter,
 	.gart = {
 		.tlb_flush = &r600_pcie_gart_tlb_flush,
 		.set_page = &rs600_gart_set_page,
@@ -1105,6 +1107,7 @@ static struct radeon_asic rv770_asic = {
 	.gui_idle = &r600_gui_idle,
 	.mc_wait_for_idle = &r600_mc_wait_for_idle,
 	.get_xclk = &rv770_get_xclk,
+	.get_gpu_clock_counter = &r600_get_gpu_clock_counter,
 	.gart = {
 		.tlb_flush = &r600_pcie_gart_tlb_flush,
 		.set_page = &rs600_gart_set_page,
@@ -1190,6 +1193,7 @@ static struct radeon_asic evergreen_asic = {
 	.gui_idle = &r600_gui_idle,
 	.mc_wait_for_idle = &evergreen_mc_wait_for_idle,
 	.get_xclk = &rv770_get_xclk,
+	.get_gpu_clock_counter = &r600_get_gpu_clock_counter,
 	.gart = {
 		.tlb_flush = &evergreen_pcie_gart_tlb_flush,
 		.set_page = &rs600_gart_set_page,
@@ -1275,6 +1279,7 @@ static struct radeon_asic sumo_asic = {
 	.gui_idle = &r600_gui_idle,
 	.mc_wait_for_idle = &evergreen_mc_wait_for_idle,
 	.get_xclk = &r600_get_xclk,
+	.get_gpu_clock_counter = &r600_get_gpu_clock_counter,
 	.gart = {
 		.tlb_flush = &evergreen_pcie_gart_tlb_flush,
 		.set_page = &rs600_gart_set_page,
@@ -1360,6 +1365,7 @@ static struct radeon_asic btc_asic = {
 	.gui_idle = &r600_gui_idle,
 	.mc_wait_for_idle = &evergreen_mc_wait_for_idle,
 	.get_xclk = &rv770_get_xclk,
+	.get_gpu_clock_counter = &r600_get_gpu_clock_counter,
 	.gart = {
 		.tlb_flush = &evergreen_pcie_gart_tlb_flush,
 		.set_page = &rs600_gart_set_page,
@@ -1445,6 +1451,7 @@ static struct radeon_asic cayman_asic = {
 	.gui_idle = &r600_gui_idle,
 	.mc_wait_for_idle = &evergreen_mc_wait_for_idle,
 	.get_xclk = &rv770_get_xclk,
+	.get_gpu_clock_counter = &r600_get_gpu_clock_counter,
 	.gart = {
 		.tlb_flush = &cayman_pcie_gart_tlb_flush,
 		.set_page = &rs600_gart_set_page,
@@ -1573,6 +1580,7 @@ static struct radeon_asic trinity_asic = {
 	.gui_idle = &r600_gui_idle,
 	.mc_wait_for_idle = &evergreen_mc_wait_for_idle,
 	.get_xclk = &r600_get_xclk,
+	.get_gpu_clock_counter = &r600_get_gpu_clock_counter,
 	.gart = {
 		.tlb_flush = &cayman_pcie_gart_tlb_flush,
 		.set_page = &rs600_gart_set_page,
@@ -1701,6 +1709,7 @@ static struct radeon_asic si_asic = {
 	.gui_idle = &r600_gui_idle,
 	.mc_wait_for_idle = &evergreen_mc_wait_for_idle,
 	.get_xclk = &si_get_xclk,
+	.get_gpu_clock_counter = &si_get_gpu_clock_counter,
 	.gart = {
 		.tlb_flush = &si_pcie_gart_tlb_flush,
 		.set_page = &rs600_gart_set_page,

drivers/gpu/drm/radeon/radeon_asic.h

@@ -389,8 +389,8 @@ void r600_kms_blit_copy(struct radeon_device *rdev,
 			unsigned num_gpu_pages,
 			struct radeon_sa_bo *vb);
 int r600_mc_wait_for_idle(struct radeon_device *rdev);
-uint64_t r600_get_gpu_clock(struct radeon_device *rdev);
 u32 r600_get_xclk(struct radeon_device *rdev);
+uint64_t r600_get_gpu_clock_counter(struct radeon_device *rdev);
 
 /*
  * rv770,rv730,rv710,rv740
@@ -517,12 +517,12 @@ void si_vm_set_page(struct radeon_device *rdev,
 		    uint32_t incr, uint32_t flags);
 void si_vm_flush(struct radeon_device *rdev, int ridx, struct radeon_vm *vm);
 int si_ib_parse(struct radeon_device *rdev, struct radeon_ib *ib);
-uint64_t si_get_gpu_clock(struct radeon_device *rdev);
 int si_copy_dma(struct radeon_device *rdev,
 		uint64_t src_offset, uint64_t dst_offset,
 		unsigned num_gpu_pages,
 		struct radeon_fence **fence);
 void si_dma_vm_flush(struct radeon_device *rdev, int ridx, struct radeon_vm *vm);
 u32 si_get_xclk(struct radeon_device *rdev);
+uint64_t si_get_gpu_clock_counter(struct radeon_device *rdev);
 
 #endif

drivers/gpu/drm/radeon/radeon_kms.c

@@ -185,11 +185,7 @@ int radeon_info_ioctl(struct drm_device *dev, void *data, struct drm_file *filp)
 	if (info->request == RADEON_INFO_TIMESTAMP) {
 		if (rdev->family >= CHIP_R600) {
 			value_ptr64 = (uint64_t*)((unsigned long)info->value);
-			if (rdev->family >= CHIP_TAHITI) {
-				value64 = si_get_gpu_clock(rdev);
-			} else {
-				value64 = r600_get_gpu_clock(rdev);
-			}
+			value64 = radeon_get_gpu_clock_counter(rdev);
 
 			if (DRM_COPY_TO_USER(value_ptr64, &value64, sizeof(value64))) {
 				DRM_ERROR("copy_to_user %s:%u\n", __func__, __LINE__);

drivers/gpu/drm/radeon/si.c

@@ -4609,14 +4609,14 @@ void si_fini(struct radeon_device *rdev)
 }
 
 /**
- * si_get_gpu_clock - return GPU clock counter snapshot
+ * si_get_gpu_clock_counter - return GPU clock counter snapshot
  *
  * @rdev: radeon_device pointer
  *
  * Fetches a GPU clock counter snapshot (SI).
  * Returns the 64 bit clock counter snapshot.
  */
-uint64_t si_get_gpu_clock(struct radeon_device *rdev)
+uint64_t si_get_gpu_clock_counter(struct radeon_device *rdev)
 {
 	uint64_t clock;